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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
131

A terapia renal substitutiva em São Paulo: uma análise a partir da economia política da saúde / A renal replacement therapy in São Paulo: an analysis from the political economy of health

Pescuma Junior, Antonio 11 March 2019 (has links)
Introducão - A Terapia Renal Substitutiva (TRS) é utilizada por uma quantidade elevada de pacientes de forma contínua, demandando montantes financeiros crescentes do Sistema Único de Saúde (SUS). Objetivo - explorar e compreender, a partir das contribuições da Economia Política da Saúde (EPS), os processos econômicos, políticos e sociais envolvidos na oferta da Terapia Renal Substitutiva (TRS) no estado de São Paulo. Métodos - a partir do referencial teórico da Economia Política da Saúde (EPS), foi realizado estudo de caso sobre a Terapia Renal Substitutiva (TRS) no estado de São Paulo mediante a investigação da dimensão industrial, da política e a de proteção social. Com relação à dimensão industrial, foram construídos indicadores com base em dados secundários relacionados às Autorizações para Procedimentos de Alta Complexidade, ao Sistema de Gerenciamento da Tabela de Procedimentos, Medicamentos, Órteses, Próteses e Meios Auxiliares de Locomoção do SUS e ao Cadastro Nacional de Estabelecimentos de Saúde. A escala da análise foram as 17 redes Regionais de Atenção Saúde em São Paulo. Com relação à dimensão política e social, foram realizadas entrevistas com atores-chaves. Procedeu-se inicialmente à leitura livre da entrevista; na sequência, foram identificados os núcleos temáticos de interesse da pesquisa. Resultados - Na dimensão industrial, foi constatado que, apesar do elevado gasto, a tecnologia na diálise apresenta somente inovações incrementais. A oferta de máquinas, em 2017, por 10000 habitantes, foi superior à do ano de 2008 em todas as regiões de saúde. O gasto para a diálise cresceu no período de 2008 a 2017. Houve crescimento de 37% na produção de procedimentos dialíticos ao longo de 2008 a 2017. Com relação aos turnos, 92% das clínicas operam com menos do que três turnos de atividade, tendo capacidade ociosa. A participação dos prestadores de serviços é de 2% para os prestadores de serviços municipais, 9% para os estaduais, 53% para os privados lucrativos e 35% para os privados sem fins lucrativos (filantrópicos). O custo é de 75% com filtros hemodialisadores importados, tendo elevado impacto no financiamento do SUS. Com a abertura do mercado da saúde ao capital estrangeiro, sancionada pelo governo através da Lei 13.097/2015, identificou-se a compra de clínicas privadas de diálise por empresas estrangeiras que pertencem à cadeia produtiva da diálise, em uma estrutura de mercado oligopolista. Com relação à dimensão política, não se observou a configuração de um conjunto de políticas públicas para o segmento. Por fim, com relação à dimensão de proteção social, há um acesso desigual aos serviços. Conclusões - Verificou-se que a diálise está inserida em um cenário de extrema dependência produtiva para sua operacionalização, sendo que todos os insumos e equipamentos são importados. É notória a presença de empresas multinacionais no segmento da diálise, com maior poder de barganha na composição dos preços dos produtos ofertados ao segmento, delineando-se um processo inflacionário e um forte impacto nos gastos. O SUS financia esta área da saúde; seria importante a indução do parque produtivo nacional para a produção de filtros, no entanto, esse movimento ainda não foi concretizado. Para complementar, as multinacionais começam a adquirir as clínicas, em um processo de liquidação dos serviços de diálise, o que pode ter implicações futuras no acesso aos pacientes SUS dependentes. / Introduction - Renal Replacement Therapy (TRS) is used by a large number of patients in continuous treatment, demanding increasing amounts of the Unified Health System (SUS). Objective - to explore and understand, from the contributions of the Political Economy of Health (EPS), the economic, political and social processes involved in the supply of Renal Replacement Therapy (TRS) in the state of. Methods - A case study on Renal Replacement Therapy (TRS) in the state of São Paulo was carried out using the industrial, political and social protection research, based on the theoretical framework of the Political Economy of Health (EPS). Regarding the industrial dimension, indicators were built based on secondary data related to the Authorizations for High Complexity Procedures, the System of Management of the Table of Procedures, Medications, Orthoses, Prostheses and Auxiliary Locomotion of SUS and to the National Registry of Establishments The scale of the analysis was the 17 Regional Health Care Networks in São Paulo. With regard to the political and social dimension, interviews were conducted with key actors. The free reading of the interview was initially done, in the sequence identified the thematic nuclei of interest of the research. Results - In the industrial dimension, it was observed that despite the high expenditure, dialysis technology presents only incremental innovations. The supply of machines in 2017 per 10,000 inhabitants was higher than in 2008 in all health regions. Dialysis expenditures increased from 2008 to 2017. There was a 37% increase in the production of dialysis procedures from 2008 to 2017. With regard to shifts, 92% of the clinics operate with less than three shifts of activity, taking idle capacity. The share of service providers is 2% for municipal service providers, 9% for state service providers, 53% for profitable private firms and 35% for private non-profit organizations (philanthropic). The cost is 75% with imported hemodialysis filters, having a high impact on the financing of SUS. With the opening of the health market to foreign capital, sanctioned by the government through Law 13.097 / 2015, it was identified the purchase of private dialysis clinics by foreign companies that belong to the dialysis production chain, in an oligopolistic market structure. Regarding the political dimension, the configuration of a set of public policies for the segment was not observed. Finally, with regard to the social protection dimension, there is an unequal access to services. Conclusions - It was verified that dialysis is inserted in a scenario of extreme dependence on production for its operationalization, and all inputs and equipment are imported. The presence of multinational companies in the dialysis segment is notorious, with a greater bargaining power in the composition of the prices of the products offered to the segment, outlining an inflationary process and a strong impact on expenses. The SUS finances this area of health, it would be important to induce the national productive park for the production of filters, but, however, this movement has not yet materialized. In addition, multinationals are beginning to acquire the clinics in a process of settlement of dialysis services, which may have future implications for access to SUS dependent patients.
132

O financiamento da média e alta complexidade do SUS:uma análise dos recursos financeiros da terapia renal substitutiva

Pescuma Junior, Antonio 10 October 2013 (has links)
Made available in DSpace on 2016-04-26T20:48:39Z (GMT). No. of bitstreams: 1 Antonio Pescuma Junior.pdf: 1103497 bytes, checksum: d268bd211e1e7520f8e251d44e3e0ce3 (MD5) Previous issue date: 2013-10-10 / In this research will be an analysis about the problem of financing of SUS throughout its existence, with questions about Desvinculações das Receitas da União(DRU), and the current economic policy. We conducted a study about the financial progress of Fundo Nacional da Saúde (FNS) and Média e Alta Complexidade (MAC) before and after the term of Pacto pela Saúde. It was verified that the MAC block has a financial higher participation compared to other blocks of financing. Finally, it was found that Terapia Renal Substitutiva (TRS) concentrates the most part of the financial resources present in the MAC / Nesta pesquisa, é feita uma análise sobre a problemática do financiamento do SUS ao longo de sua existência, com questionamentos acerca das Desvinculações das Receitas da União (DRU), e sobre a política econômica vigente no Brasil. Realizou-se um estudo sobre a evolução financeira do Fundo Nacional da Saúde (FNS) e sobre o bloco da Média e Alta Complexidade (MAC), antes e após a vigência do Pacto pela Saúde. Foi verificado que o bloco MAC possui uma participação financeira superior em comparação com outros blocos de financiamento. Por fim, constatou-se que a Terapia Renal Substitutiva (TRS) concentra a maior parte dos recursos financeiros presentes no MAC
133

Effects of menopause and menopausal hormone therapy on vascular reactivity in Hong Kong Chinese women. / CUHK electronic theses & dissertations collection

January 2006 (has links)
Conclusion 1. The results of the research partly supported hypothesis 1a. There was a significant reduction in both endothelium-dependent arterial relaxation following a surgical menopause. The results of the research partly supported hypothesis 1b. There was a significant reduction in endothelium-dependent arterial relaxation but no significant effect on endothelium-independent arterial relaxation. / Conclusion 2. The results of the research partly supported hypothesis 2a. The addition of unopposed oestrogen significantly improved endothelium-dependent but not endothelium-independent arterial relaxation. The results of the research supported hypothesis 2b. The addition of oestradiol combined with progestogen (norethisterone acetate) reversed the reduction in arterial relaxation caused by a surgical menopause. The results of the research partly supported hypothesis 2c. The addition of tibolone reversed the reduction endothelium-dependent but not endothelium-independent arterial relaxation. The results of the research partly supported hypothesis 2d. The addition of oestradiol combined with a progestogen (norethisterone acetate) reversed the reduction in endothelium-dependent but not endothelium-independent arterial relaxation. / Conclusion 3. The results of the research partly supported hypothesis 3a. Endothelium-dependent arterial relaxation but no endothelium-independent arterial relaxation was improved after the addition of menopausal hormone therapy using oestrogen combined with a progestogen in a continuous manner. The results of the research did not support hypothesis 3b. Neither endothelium-dependent arterial relaxation nor the endothelium-independent arterial relaxation was improved by cyclical menopausal HT. / Conclusion 4. The results of the research did not support hypothesis 4. The addition of menopausal hormone therapy using combined oestrogen with progestogen did not improve arterial relaxation in postmenopausal women with established coronary heart disease. / Hypothesis 2. This hypothesis examined three different types of commonly used menopausal HT. That unopposed oestrogen (2a), oestrogen combined with a progestogen (2b and 2d) or a synthetic steriod that has oestrogenic, progestogenic as well as androgenic activity (tibolone, 2c), reverse the reduction in arterial relaxation following menopause in Hong Kong Chinese women. / Hypothesis 3. That menopausal hormone therapy using oestrogen combined with progestogen given in either continuous (3a) or cyclical (3b) regimens improves arterial relaxation in postmenopausal Hong Kong Chinese women. / Hypothesis 4. That menopausal hormone therapy using combined oestrogen with progestogen improves arterial relaxation in postmenopausal Hong Kong Chinese women with established coronary heart disease. / Menopausal HT can in general at least partially reverse changes in arterial relaxation in postmenopausal women. Different types of menopausal HT exhibit different effects on arterial relaxation. In healthy vessels, menopause HT mainly reverses the endothelium-dependent vascular effect, but it remains unclear how menopausal HT affects the endothelium-independent vascular effect. However, with established coronary heart disease, menopausal HT cannot reverse the changes in vascular reactivity. / Summary. Menopause results in a reduction in arterial relaxation. However, GnRHa temporarily induced menopause in young women, the endothelium-independent vasodilatation was not impaired. This difference can be partly explained by the difference in age as vascular reactivity is age dependent. Secondly, GnRHa works with an initial phase of increase in oestrogen production resulting in a shorter duration of hypo-oestrogenism resulting in the lack of impairment on endothelium-independent vasodilatation. / This thesis tested the following hypotheses: Hypothesis 1. That vascular reactivity decreases after the menopause as shown in premenopausal Hong Kong Chinese women with either a surgical (1a) or a medically induced (1b) menopause. / This thesis will examine the effects of menopause and menopausal HT on arterial reactivity which is an indirect measurement of vascular function. Previous studies have shown that oestrogen is a potent coronary artery vasodilator, and this effect may be mediated via both endothelium-dependent and endothelium-independent mechanisms. One method of assessing vascular reactivity is to use ultrasound measurement of changes in brachial artery diameter in response to certain stimuli. Using this technique, changes in both endothelium-dependent and endothelium-independent vasodilatation can be measured. Increased rather than decreased arterial relaxation after stimulus can be viewed as a favourable response. / Yim, So-fan. / Adviser: C. J. Haines. / Source: Dissertation Abstracts International, Volume: 68-09, Section: B, page: 5873. / Thesis (M.D.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (p. 159-194). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / School code: 1307.
134

Avaliação de tecnologias em saúde para doenças raras : revisão sistemática e meta-análise sobre terapia de reposição enzimática para mucopolissacaridose tipo I

Dornelles, Alícia Dorneles January 2017 (has links)
Introdução: Com o avanço das tecnologias para saúde, novas opções terapêuticas estão emergindo, incluindo aquelas direcionadas para doenças raras, e cuja eficácia e segurança são de difícil determinação quando utilizados os métodos originalmente delineados para as doenças frequentes. Nesse caso, as revisões sistemáticas sobre os tratamentos existentes para doenças raras, cujos custos são elevados, são importantes para o processo de tomada de decisões a fim de definir o perfil de pacientes que mais provavelmente responderão positivamente a cada tratamento. A mucopolissacaridose tipo I (MPS I) é uma doença autossômica recessiva causada pela ausência ou deficiência da atividade da hidrolase lisossomal alfa-L-Iduronidase, com amplo espectro clínico e envolvimento multissistêmico. A terapia de reposição enzimática (TRE) intravenosa (IV) com laronidase a 0,58 U / kg / infusão semanal está atualmente aprovada para tratar estes pacientes em diferentes cenários clínicos. O objetivo do presente estudo foi avaliar a eficácia e segurança da TRE IV com laronidase para o tratamento de pacientes com MPS I. Métodos: Revisão sistemática da literatura com buscas realizadas no Clinical Trials, MEDLINE / PubMed, EMBASE, LILACS e Cochrane Library. A pesquisa foi limitada aos ensaios clínicos publicados até 31 de dezembro de 2015. O primeiro critério de inclusão foi o de ser um ensaio clínico randomizado (ECR) comparando laronidase a placebo; se fossem identificados menos de 5 ECR, seriam incluídos também ensaios abertos e não randomizados, controlados ou não (quasi-experimentais) (≥ 5 pacientes) que avaliassem resultados relevantes definidos a priori. A revisão sistemática foi conduzida de acordo com a Colaboração Cochrane, e a meta-análise foi feita pelas diretrizes PRISMA. Em relação aos desfechos para os quais a meta-análise não pode ser realizada, aqueles com classificação GRADE igual ou superior a MODERADO foram considerados como indicadores de evidência sobre a eficácia ou segurança. Resultados: A fase de seleção encontrou 613 artigos. Durante a primeira fase de seleção, 66 artigos duplicados foram eliminados, e 547 artigos foram selecionados, dos quais 155 tiveram texto completo ou resumo avaliado para elegibilidade. Destes trabalhos, o número final de artigos incluídos chegou a nove para a síntese qualitativa (apenas dois ECR). Quatro estudos foram incluídos na meta-análise, sendo possível realizá-la para os seguintes desfechos: ocorrência de eventos adversos relacionados ao ratamento ou infusão (65%), leves na maioria dos casos (rash, urticaria e febre), desenvolvimento de anticorpos IgG para a laronidase (88%), índice de apnéia-hipopnéia [média de mudança = 0,05 (IC 95% -10,3, 10,4)], glicosaminoglicanos urinários (GAGs) [média de mudança = - 65,5 μg / mg creatinina (IC 95% -68,8, -62,3)], tamanho do fígado [média de mudança = -31.03% (IC 95% -36,1, -25,9)], índice de massa do ventrículo esquerdo [média de mudança = 0,49 (IC 95% -2,3, 3,3)], distância coberta no Teste de Caminhada de 6 minutos [média de mudança = 17,25 (IC 95% -6,64, 41,13)]. Em relação aos desfechos para os quais a meta-análise não pode ser realizada, encontramos evidência de benefício da laronidase em relação à flexão de ombros. Conclusões: Como esperado para doenças raras, encontramos poucos ensaios clínicos sobre laronidase e esses estudos eram bastante heterogêneos, especialmente na forma de avaliação dos desfechos, impedindo que a maioria das variáveis fosse meta-analisada. Os nossos resultados sugerem que a laronidase IV é eficaz em reduzir a excreção de GAGs urinários e a hepatomegalia associada à MPS I, e em aumentar o grau de flexão do ombro desses pacientes. A laronidase também parece ser segura nas populações estudadas, geralmente com eventos adversos leves. Acreditamos que esta metodologia proposta, incluindo estudos com outros delineamentos além de ECR, é capaz de avaliar de forma adequada a evidência disponível para doenças raras, como mostram os resultados obtidos. / Background: With the advancement of health technologies, new therapeutic options are emerging, including those targeted at rare diseases, and whose efficacy and safety are difficult to determine when using the methods originally designed for frequent illnesses. In this case, systematic reviews of existing high-cost rare disease treatments are important for the decision-making process in order to define the profile of patients who are most likely to respond positively to each treatment. Type I mucopolysaccharidosis (MPS I) is an autosomal recessive disease caused by the absence or deficiency of the lysosomal hydrolase alpha-L-Iduronidase activity, with broad clinical spectrum and multisystemic involvement. Intravenous (IV) enzyme replacement therapy (ERT) with 0.58 U / kg / weekly infusion laronidase is currently approved to treat these patients in different clinical settings. The objective of the present study was to evaluate the efficacy and safety of IV ERT with laronidase for the treatment of patients with MPS I. Methods: A systematic literature review was performed by searching the ClinicalTrials.gov, MEDLINE/PubMed, EMBASE, LILACS, and Cochrane Library databases. The search was limited to clinical trials published until December 31, 2015. The first inclusion criterion was being a randomized controlled trial (RCT). If fewer than five RCTs were identified, open-label and nonrandomized trials, controlled or uncontrolled (quasi-experimental), including ≥ 5 patients, and evaluating relevant outcomes defined a priori, were also included. The systematic review was conducted according to Cochrane Collaboration, while the meta-analysis followed the PRISMA guidelines. Outcomes not included in meta-analysis with a GRADE classification of moderate or better were deemed indicative of evidence of efficacy or safety. Results: The selection phase retrieved 613 articles. During the first phase of selection, 66 duplicated entries were excluded and 547 articles were screened, of which 155 had the abstract or full text read for assessment of eligibility. Of these papers, nine (only two RCTs) were ultimately included for qualitative synthesis. Four papers were included in the meta-analysis, which was performed for the following outcomes: occurrence of treatment-emergent or infusion-related adverse events (65%), mild in most cases (rash, urticaria, and fever), development of IgG antibodies to laronidase (88%), apnea-hypopnea index [mean change 0.05 (95%CI -10.3, 10.4)], urinary glycosaminoglycans (GAGs) [mean change -65.5 μg/mg creatinine (95%CI -68.8, -62.3)], liver size [mean change -31.03% (95%CI -36.1, -25.9)], left ventricular mass index [mean change 0.49 (95%CI -2.3, 3.3)], and distance covered in the 6-minute walk test [mean change 17.25 m (95%CI -6.64, 41.13)]. Among the outcomes not included in meta-analysis, we found evidence for benefit of laronidase regarding shoulder flexion. Conclusions: Our results suggest, as expected for rare disorders, that there are few studies on this issue published in the literature, and this studies are very heterogeneous, mainly concerning the way outcomes are evaluated, preventing most variables to be meta-analyzed. Our findings suggest that IV laronidase effectively reduces the urinary GAG excretion and hepatomegaly associated with MPS I and can improve shoulder flexion in these patients. Laronidase also appears to be safe in the studied population, with generally mild adverse events. We believe that this proposed methodology, including studies with other designs besides ECR, is capable of adequately assessing the available evidence for rare diseases, as shown by the results obtained.
135

Avaliação clínico-laboratorial dos pacientes com mucopolissacaridose tipos I,II e VI em terapia de reposição enzimática (TRE) / Clinical and laboratory evaluation of patients with mucopolysaccharidosis types I, II and VI receiving enzyme replacement therapy (ERT)

José Francisco da Silva Franco 13 January 2016 (has links)
Introdução: As mucopolissacaridoses (MPSs) são doenças de depósito lisossômico causadas por deficiências enzimáticas envolvidas na degradação dos glicosaminoglicanos (GAGs). As MPSs dos tipos I, II e VI decorrem da deficiência das enzimas alfa-L-iduronidase, iduronato-2-sulfatase e Nacetilgalactosamina 4-sulfatase, respectivamente. As manifestações clínicas são multissistêmicas e progressivas. Objetivo: O objetivo deste estudo foi descrever a evolução clínica e laboratorial de pacientes com Mucopolissacaridose I, II e VI, em terapia de reposição enzimática (TRE). Métodos: Foram avaliados 27 pacientes com MPS (13 MPS I, 8 MPS II e 6 MPS VI), com diagnóstico confirmado pela dosagem enzimática e GAGs urinários, acompanhados em três centros de referência para TRE. Resultados: Cinco pacientes eram casos familiares (3 MPS I e 2 MPS VI). Todos os indivíduos estudados nasceram sem alterações clínicas e as mães relataram o aparecimento dos sintomas (alteração da face, aumento do volume abdominal, rigidez articular e déficit de crescimento) a partir dos 6 meses a 8 anos de idade, MPS I-Hurler (média 7m), MPS I Hurler-Scheie (média 2a), MPS I- Scheie (6a10m), MPS II (média 3a6m) e MPS VI (média 1a). A idade ao diagnóstico foi: MPS I-H (média 1a6m), I-HS (média 4a8m) e I-S (média 13a7m), MPS II e VI (média 5a). Entre os pacientes avaliados, observaram-se cinco casos familiais, sendo uma família com duas irmãs com MPS VI e outra família com dois irmãos e um primo com MPS I-S. Todos os pacientes apresentaram dismorfismos faciais típicos, associados a outros achados frequentes: restrição articular, mãos em garra, macrocefalia, baixa estatura, déficit ponderal. Pacientes com atraso no DNPM e/ou deficiência intelectual foram: Hurler (3/3), Hurler-Scheie (3/5) e MPS II (4/8). A idade do início da TRE foi de 1a2m a 31a9m. O tempo de TRE variou de 40 semanas a 556 semanas (média 259 semanas). Ao diagnóstico, todos os pacientes I, II e VI apresentaram o nível de GAGs urinários aumentado de 2 a 13 vezes o valor de referência para a idade. Aproximadamente 26 semanas após TRE, houve redução de GAGs urinários com a normalização do nível em 12/27 (44%) e o valor ainda um pouco acima do normal em 15/27(56%). Antes da TRE, 24/26 (92%) pacientes apresentaram alterações ecocardiográficas, e a despeito da TRE, houve persistência ou progressão das anormalidades. A polissonografia foi realizada em 10 pacientes antes da TRE sendo constatada a Síndrome da Apnéia Obstrutiva do Sono (SAOS) em nove pacientes (2 Hurler, 3 HurlerScheie, 3 MPS II e 1 MPS VI). Mesmo com o uso da TRE observou-se aumento do índice de apneias. As reações às infusões foram observadas em 55% dos pacientes (15/27), a maioria, presente nas primeiras semanas de infusão. Elas consistiram de: erupção cutânea, HAS, febre e broncoespasmo, revertidas após o uso de anti-histamínicos, antitérmicos e/ou redução da velocidade da infusão. As reações mais graves foram encontradas em dois pacientes. As principais complicações clínicas diagnosticadas, antes da TRE, foram: HAS (25%), perda auditiva (37%) e hidrocefalia (15%). Durante a TRE, houve aumento das frequências das complicações: HAS (37%), perda auditiva (59%) e hidrocefalia (22%). Entre os pacientes submetidos a intervenções cirúrgicas, cinco apresentaram complicações anestésicas e dois faleceram durante o procedimento. Conclusões: Este estudo mostrou heterogeneidade clínica pela variabilidade inter e intrafamilial. A utilização da TRE é capaz de atenuar, mas não de impedir a progressão da doença, cuja mortalidade permanece elevada. O diagnóstico precoce e a instituição da TRE pode modificar substancialmente a história natural da doença e melhorar a qualidade de vida / Introduction: Mucopolysaccharidosis (MPS) are lisosomal storage disorders caused by glycosaminoglycans (GAGs) enzymatic catabolism deficiencies, leading to mucopolysaccharides organ and tissues deposition. MPS types I, II and VI are due to deficiency of respectively, alpha-L-iduronidase, iduronate-2sulfatase and N-acetylgalactosamine-4-sulfatase. Clinical manifestations are progressive and multisystemic. Objective: The aim of this study was to describe the clinical and laboratory data of patients with MPS types I, II and VI receiving Enzyme Replacement Therapy (ERT). Methods: This study involved 27 patients with MPS (13 MPS I; 8 MPS II and 6 MPS VI) diagnosed by enzymatic and urinary GAGs measurement, followed in three reference centers for ERT. Results: Five patients were familial cases (3 MPS I and 2 MPS VI). All patients. All patients were born without clinical complications and their mothers referred the first signs and symptoms (coarse face, enlarged abdomen, stiff joints, short stature) had started at 6mo to 8y: MPS I Hurler (mean 7mo), MPS I Hurler-Scheie (mean 2y), MPS I Scheie (mean 6y10mo), MPS II (mean 3y6mo) and MPS VI (mean 1y). The mean age of diagnosis was: MPS I Hurler (1y6mo), MPS I Hurler-Scheie (4y8mo), MPS I Scheie (13y7mo), MPS II and VI (5y). There were five familial cases, including a MPS VI family (two sisters) and a MPS I Scheie family (two brothers and one cousin). All patients presented progressive typical facial coarsening. Other frequent findings were: stiff joints, clowded hands, macrocrania, failure to thrive. The prevalence of developmental milestones delay and/or mental intellectual disability was: MPS I Hurler (3/3), MPS I Hurler-Scheie (3/5) and MPS II (4/8). The age of onset of ERT ranged from 1y 2mo to 31y 9mo. The follow-up time after ERT initiation ranged from 40w to 556w (mean 259w). The baseline levels of urinary GAGs were increased two to 13 folds compared to reference values according to age. Approximately 26 weeks after ERT, urinary GAGs levels decreased. Normal levels of urinary GAGs in 12/27 (44%) and slightly increased in 15/27(56%) patients were observed. Before ERT, 24/26 (92%) patients presented echocardiographic abnormalities, which persisted or worsened in spite of ERT. Polysomnography was performed in 10 patients before ERT and revealed obstructive sleep apnea in nine patients (2 MPS I Hurler, 3 MPS I Hurler-Scheie, 3 MPS II and 1 MPS VI); the apnea/hypopnea index increased after ERT. Adverse infusion reactions were reported in 55% (15/27) of patients. Most of them was observed during the first weeks of treatment and included: skin rash, arterial hypertension, fever and bronchospasm, and were solved with antihistamines, antipyretics and/or reduction of infusion rate. Severe reactions were noted in two patients. Regarding clinical complications, arterial hypertension (25%), hypoacusia (37%) and hydrocephalus (15%) were diagnosed before ERT. After ERT arterial hypertension (37%), hypoacusia (59%) and hydrocephalus (22%) were reported. Among the patients that undergone surgical procedures, five presented anesthestical complications and two patients deceased during the procedure. Conclusions: This study showed both inter and intrafamilial clinical heterogeneity. ERT is able to ameliorate but not to stop the progression of the disease that remains with high mortality rate. This study emphasizes that the early diagnosis and ERT are critical for a better outcome and for enhancing the quality of life of these patients
136

PERFIL ALIMENTAR, AVALIAÇÃO DO FLUXO SALIVAR E XEROSTOMIA EM MULHERES NO CLIMATÉRIO USUÁRIAS E NÃO USUÁRIAS DE TERAPIA DE REPOSIÇÃO HORMONAL / FOOD PROFILE, EVALUATION OF THE SALIVARY FLOW AND XEROSTOMIA IN WOMEN IN CLIMACTERIC USERS AND NON-USERS OF HORMONE REPLACEMENT THERAPY

Labidi, Afef Tlili 18 June 2012 (has links)
Made available in DSpace on 2016-08-19T18:16:05Z (GMT). No. of bitstreams: 1 Dissertacao Afef Tlili.pdf: 665576 bytes, checksum: 18bfa1ef70f784749b0ff17501d112a4 (MD5) Previous issue date: 2012-06-18 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / INTRODUCTION: In climateric, there are sweeping changes that can be felt also in the oral cavity by hyposalivation or xerostomia, which can be minimized with Hormone Replacement Therapy (HRT). The dietary profile in premenopausal women helps prevent the most prevalent diseases in this age group. Therefore, the analysis of food consumption in premenopausal women helps deepen new approaches to dietary intervention for the prevention and control, enabling them a better quality of life. OBJECTIVES: We aim to investigate the dietary profile and the relationship between low flow rate of saliva and xerostomia in menopausal women users and nonusers of HRT. METHODS: Cross and prospective research by the application of questionnaires and salivary flow analysis in menopausal women who attended the University Hospital of UFMA in 2009 and 2010. They were divided into two groups A and B. Group A was composed of women using HRT and Group B for non-users. RESULTS: Group A had a higher volume of salivary flow compared with Group B (p = 0.021). Xerostomia was found to be a symptom independent of salivary flow rate, and was present mostly in Group B. The highest mean BMI was found in Group B. The consumption of sugars and fats dominated in obese type II, in thin vegetables, of fruits in overweight, and of milk and dairy products in normal weight. CONCLUSIONS: Based on the assessment of dietary consumption, this study showed that menopausal women eat incorrectly in quantitative and qualitative terms, with a trend toward greater consumption of fats. We also conclude that HRT is beneficial regarding symptoms of dry mouth and increase of salivary flow. / INTRODUÇÃO: No climatério, há intensas transformações que podem ser sentidas também na cavidade oral, pela hipossalivação ou xerostomia, o que pode ser minimizado com a Terapia de Reposição Hormonal (TRH). O adequado perfil alimentar em mulheres climatéricas ajuda a prevenir as doenças mais prevalentes nessa faixa etária. Portanto, a análise do consumo alimentar de mulheres climatéricas ajuda a aprofundar novas abordagens na intervenção alimentar para a prevenção e controle, possibilitando-lhes uma melhor qualidade de vida. OBJETIVOS: Investigar o perfil alimentar e a relação existente entre hipofluxo salivar e xerostomia em mulheres climatéricas usuárias e não usuárias de TRH. MÉTODOS: Estudo transversal e prospectivo pela aplicação de questionários e análise do fluxo salivar em mulheres climatéricas que compareceram ao Hospital Universitário da UFMA em 2009 e 2010. Elas foram divididas em dois grupos A e B. O Grupo A foi composto por mulheres usuárias de TRH (estradiol 1mg/dia durante 12 meses seguidos) e o Grupo B por não usuárias. RESULTADOS: O Grupo A apresentou maior volume de fluxo salivar em comparação com o Grupo B (p=0,021). A xerostomia mostrou-se um sintoma independente da taxa de fluxo salivar, e esteve presente, em sua maioria, no Grupo B. O maior IMC médio foi encontrado no Grupo B. O consumo de açúcares e gorduras predominou nas obesas grau II, de hortaliças nas magras, de frutas nas com sobrepeso e de leites e derivados nas eutróficas. CONCLUSÕES: A partir da avaliação do consumo alimentar, este estudo demonstrou que as mulheres climatéricas alimentam-se de forma incorreta do ponto de vista quantitativo e qualitativo, havendo uma tendência ao maior consumo de gorduras. Conclui-se também que a TRH traz benefícios em relação aos sintomas de secura bucal e aumento do fluxo salivar.
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Aspectos farmacoeconômicos associados à terapia de reposição enzimática para mucopolissacaridoses tipo I, II e VI : um estudo com ênfase em intervenções médicas

Bitencourt, Fernanda Hendges de January 2013 (has links)
Introdução: As mucopolisaccaridoses tipo I (MPS I), tipo II (MPS II) e tipo VI (MPS VI) são doenças lisossômicas (DL) para as quais está disponível a terapia de reposição enzimática (TRE) com laronidase, idursulfase e galsufase, respectivamente. Objetivo Primário: Analisar a frequência anual de intervenções médicas (número de consultas, internações, cirurgias, exames solicitados, medicamentos prescritos, equipamentos de uso crônico e outras formas de terapia) em uma amostra de pacientes brasileiros com MPS I, II e VI e, desta forma, contribuir para o conhecimento dos aspectos farmacoeconômicos relacionados a essas doenças. Metodologia: Estudo exploratório, retrospectivo, de base hospitalar, baseado em revisão de prontuário, com amostragem por conveniência, e que foi realizado em duas etapas (etapas 1 e 2). Um instrumento específico para a coleta de dados de ambas as etapas foi construído pela equipe do estudo, que é multidisciplinar. Os desfechos de interesse foram as frequências anuais de intervenções médicas (consultas, exames, cirurgias, internações, medicamentos utilizados, outras formas de terapia). A etapa 1 consistiu em estudo pré-experimental, realizado no Serviço de Genética Médica do Hospital de Clínicas de Porto Alegre (SGM-HCPA), e que comparou as variáveis de interesse, para o mesmo grupo de pacientes, entre o período pré e pós-TRE. Os critérios de inclusão dessa etapa foram: ter diagnóstico confirmado de MPS I; estar em acompanhamento regular no SGM-HCPA desde o diagnóstico; estar em TRE por pelo menos um ano; e não ter participado de ensaio clínico envolvendo TRE ou ter realizado transplante de células-tronco hematopoiéticas. A etapa 2 foi transversal, multicêntrica (centros incluídos: SGMHCPA, Departamento de Genética Médica da Universidade Estadual de Campinas - UNICAMP, Pontifícia Universidade Católica de Campinas – PUC-Campinas, e Departamento de Pediatria da Universidade Estadual do Rio de Janeiro - UERJ), e comparou as variáveis de interesse entre grupos diferentes de pacientes (aqueles recebendo TRE e aqueles não recebendo TRE). Para essa etapa, foram considerados somente os dados relativos a 2010, sendo os seguintes os critérios de inclusão dos pacientes: ter diagnóstico confirmado de MPS I, II e VI; não estar participando de nenhum ensaio clínico envolvendo TRE ou ter realizado transplante de células-tronco hematopoiéticas; estar em TRE por pelo menos 12 meses antes do início da coleta, ou em acompanhamento por pelo 12 meses antes do início da coleta. Resultados: Etapa 1 - Nove pacientes (graves=3; atenuados=6) com MPS I foram incluídos no estudo, com mediana de idade de diagnóstico de 4,4 anos. Somente o número de cirurgias/ano/paciente foi dependente do tempo de doença (p=0,0004) e da gravidade do fenótipo (p=0,014). Com relação às comparações pré e pós-TRE, as variáveis que apresentaram diferença significativa (média do número/ano/paciente) foram: exames (pré-TRE=10,2+2,7; pós-TRE=22,5+2,1; p=0,005) e internações (pré-TRE=0,05+0,04; pós-TRE=0,30+0,11; p=0,013). Para as demais variáveis, não foi encontrada associação. Etapa 2 - Trinta e quatro pacientes com MPS I (n=12), II (n=17) e VI (n=5) foram incluídos no estudo. Desses, sete não utilizavam TRE (grupo “sem TRE") e 27 faziam uso de tratamento específico (grupo “com TRE"). Não foi encontrada correlação significativa entre tempo de doença e as variáveis estudadas. Considerando a amostra total, foi encontrada diferença entre o grupo “sem TRE” e o grupo “com TRE” em relação à mediana de internações hospitalares e de cirurgias realizadas [1(0-2) vs. 0 (0-1), p=0,015; e 0 (0-2) vs. 0 (0-0), p=0,040, respectivamente]. Para as crianças/adolescentes (<18 anos), não foi encontrada diferença estatística entre os grupos. Os pacientes com comprometimento cognitivo utilizavam mais medicamentos que os demais (p=0,024). Encontrou-se correlação negativa entre as variáveis duração da TRE e número anual de internações (r= -0,504; p=0,007). Discussão/ Conclusões: Este é um dos primeiros estudos a avaliar aspectos relacionados à farmaconomia da TRE para as MPS. De acordo com os resultados obtidos na etapa 2, verifica-se que, desconsiderando-se o custo associado às infusões, o custo do tratamento de pacientes com MPS parece ser menor para aqueles pacientes que utilizam a TRE do que para os pacientes que fazem somente tratamento sintomático. Entretanto, de acordo com a etapa 1 do estudo, a TRE parece não impedir a evolução da doença, pelo menos em relação à MPS I, e, assim, a cada ano de vida do paciente ocorreria um incremento do custo associado ao tratamento. Estudos adicionais, com maior tamanho amostral, deverão ser realizados para confirmar nossos achados. / Introduction: The mucopolysaccharidoses type I (MPS I), II (MPS II) and VI (MPS VI) are lysosomal disorders (LSD) for which enzyme replacement therapy (ERT) with laronidase, idursulfase and galsulfase, respectively, are available. Principal objective: To analyze the annual frequency of medical interventions (number of medical appointments, hospital admissions, surgical procedures, exams performed, medications prescribed, ancillary therapies and the use of medical devices) in a sample of Brazilian patients with MPS I, II and VI, and thus, contribute to the understanding of some pharmacoeconomic aspects related to these diseases. Methodology: Retrospective, exploratory, hospital-based study, based on medical records review, with convenience sampling, which was conducted in two steps (steps 1 and 2). A specific data collection instrument for both steps was designed by the study team, which is multidisciplinary. The chosen outcomes were: annual frequencies of medical interventions (medical appointments, exams, surgical procedures, hospital admissions, medications used and ancillary therapies). Step 1 was a pre-experimental study conducted at the Medical Genetics Service of Hospital de Clínicas de Porto Alegre (SGM-HCPA), and compared the variables of interest between the pre and post-ERT periods for the same group of patients. The patient inclusion criteria were: a biochemical diagnosis of MPS I and regular follow-up at SGM-HCPA since diagnosis; ERT for at least 1 year; no enrollment in any clinical trials involving ERT, and no history of hematopoietic stem cell transplantation. Step 2 was a cross-sectional and multicentric estudy (Centers included: SGM-HCPA), the Department of Medical Genetics of Universidade Estadual de Campinas - UNICAMP, Pontifícia Universidade Católica de Campinas - PUC-Campinas, and the Department of Pediatrics at Universidade Estadual do Rio de Janeiro – UERJ, which compared the variables of interest between different groups of patients (those receiving and those not receiving ERT). For this step only data from 2010 were considered. The inclusion patient criteria were: a biochemical diagnosis of MPS I, II or VI; no enrollment in any clinical trials involving ERT, and no history of hematopoietic stem cell transplantation, to be on ERT for at least 12 months before the start of data collection or to undergo regular follow-up for at least 12 months before the start of data collection. Results: Step 1 – Nine MPS I patients (severe=3; attenuated phenotype=6) were included in the study with median age at diagnosis was 4.4 years. Only the number/year/patient of surgeries was found to be dependent on length of disease (p=0.0004) and on severity of phenotype (p=0.014). Regarding pre- and post-ERT comparisons, the variables for which a significant difference was detected (mean number/year/patient) were exams (pre-ERT, 10.2±2.7; post-ERT, 22.5±2.1; p=0.005) and hospital admissions (pre-ERT, 0.05±0.04; post-ERT, 0.30±0.11; p=0.013). For the other variables, no association was found. Step 2: Thirty-four patients with MPS I, II and VI were included (I=12, II=17, VI=5). From them, 27 on ERT (“ERT group”) and 7 receiving supportive care only (“non-ERT group”). There were no significant correlation between length of disease and any of the variables of interest. There were significant between-group differences in the median number of hospital admissions and surgical procedures, both of which were higher in the non-ERT group [1(0-2) vs. 0 (0-1), p=0,015; e 0 (0-2) vs. 0 (0-0), p=0,040, respectively]. There were no significant between-group differences when only children and adolescents (<18 years) were taken into account. Patients with cognitive involvement used more medications than the others (p=0.024). A correlation was detected between time on ERT and the hospital admissions variable (r= -0.504; p=0.007). Discussion/conclusions: This was one of the first studies to evaluate aspects related to pharmacoeconomics of ERT for MPS. According to the results of step 2, and not acknowledging the costs associated with recombinant enzyme infusions, patients with MPS who undergo ERT generate less cost to SUS than patients on symptomatic treatment. On the other hand, according to the results of step 1, ERT seems not to stop the disease progress, at least in respect to MPS I, and thus, for each year of a patient life occurred an increase in cost associated with treatment. Additional studies with larger sample size are needed to confirm our findings.
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Avaliação clínico-laboratorial dos pacientes com mucopolissacaridose tipos I,II e VI em terapia de reposição enzimática (TRE) / Clinical and laboratory evaluation of patients with mucopolysaccharidosis types I, II and VI receiving enzyme replacement therapy (ERT)

Franco, José Francisco da Silva 13 January 2016 (has links)
Introdução: As mucopolissacaridoses (MPSs) são doenças de depósito lisossômico causadas por deficiências enzimáticas envolvidas na degradação dos glicosaminoglicanos (GAGs). As MPSs dos tipos I, II e VI decorrem da deficiência das enzimas alfa-L-iduronidase, iduronato-2-sulfatase e Nacetilgalactosamina 4-sulfatase, respectivamente. As manifestações clínicas são multissistêmicas e progressivas. Objetivo: O objetivo deste estudo foi descrever a evolução clínica e laboratorial de pacientes com Mucopolissacaridose I, II e VI, em terapia de reposição enzimática (TRE). Métodos: Foram avaliados 27 pacientes com MPS (13 MPS I, 8 MPS II e 6 MPS VI), com diagnóstico confirmado pela dosagem enzimática e GAGs urinários, acompanhados em três centros de referência para TRE. Resultados: Cinco pacientes eram casos familiares (3 MPS I e 2 MPS VI). Todos os indivíduos estudados nasceram sem alterações clínicas e as mães relataram o aparecimento dos sintomas (alteração da face, aumento do volume abdominal, rigidez articular e déficit de crescimento) a partir dos 6 meses a 8 anos de idade, MPS I-Hurler (média 7m), MPS I Hurler-Scheie (média 2a), MPS I- Scheie (6a10m), MPS II (média 3a6m) e MPS VI (média 1a). A idade ao diagnóstico foi: MPS I-H (média 1a6m), I-HS (média 4a8m) e I-S (média 13a7m), MPS II e VI (média 5a). Entre os pacientes avaliados, observaram-se cinco casos familiais, sendo uma família com duas irmãs com MPS VI e outra família com dois irmãos e um primo com MPS I-S. Todos os pacientes apresentaram dismorfismos faciais típicos, associados a outros achados frequentes: restrição articular, mãos em garra, macrocefalia, baixa estatura, déficit ponderal. Pacientes com atraso no DNPM e/ou deficiência intelectual foram: Hurler (3/3), Hurler-Scheie (3/5) e MPS II (4/8). A idade do início da TRE foi de 1a2m a 31a9m. O tempo de TRE variou de 40 semanas a 556 semanas (média 259 semanas). Ao diagnóstico, todos os pacientes I, II e VI apresentaram o nível de GAGs urinários aumentado de 2 a 13 vezes o valor de referência para a idade. Aproximadamente 26 semanas após TRE, houve redução de GAGs urinários com a normalização do nível em 12/27 (44%) e o valor ainda um pouco acima do normal em 15/27(56%). Antes da TRE, 24/26 (92%) pacientes apresentaram alterações ecocardiográficas, e a despeito da TRE, houve persistência ou progressão das anormalidades. A polissonografia foi realizada em 10 pacientes antes da TRE sendo constatada a Síndrome da Apnéia Obstrutiva do Sono (SAOS) em nove pacientes (2 Hurler, 3 HurlerScheie, 3 MPS II e 1 MPS VI). Mesmo com o uso da TRE observou-se aumento do índice de apneias. As reações às infusões foram observadas em 55% dos pacientes (15/27), a maioria, presente nas primeiras semanas de infusão. Elas consistiram de: erupção cutânea, HAS, febre e broncoespasmo, revertidas após o uso de anti-histamínicos, antitérmicos e/ou redução da velocidade da infusão. As reações mais graves foram encontradas em dois pacientes. As principais complicações clínicas diagnosticadas, antes da TRE, foram: HAS (25%), perda auditiva (37%) e hidrocefalia (15%). Durante a TRE, houve aumento das frequências das complicações: HAS (37%), perda auditiva (59%) e hidrocefalia (22%). Entre os pacientes submetidos a intervenções cirúrgicas, cinco apresentaram complicações anestésicas e dois faleceram durante o procedimento. Conclusões: Este estudo mostrou heterogeneidade clínica pela variabilidade inter e intrafamilial. A utilização da TRE é capaz de atenuar, mas não de impedir a progressão da doença, cuja mortalidade permanece elevada. O diagnóstico precoce e a instituição da TRE pode modificar substancialmente a história natural da doença e melhorar a qualidade de vida / Introduction: Mucopolysaccharidosis (MPS) are lisosomal storage disorders caused by glycosaminoglycans (GAGs) enzymatic catabolism deficiencies, leading to mucopolysaccharides organ and tissues deposition. MPS types I, II and VI are due to deficiency of respectively, alpha-L-iduronidase, iduronate-2sulfatase and N-acetylgalactosamine-4-sulfatase. Clinical manifestations are progressive and multisystemic. Objective: The aim of this study was to describe the clinical and laboratory data of patients with MPS types I, II and VI receiving Enzyme Replacement Therapy (ERT). Methods: This study involved 27 patients with MPS (13 MPS I; 8 MPS II and 6 MPS VI) diagnosed by enzymatic and urinary GAGs measurement, followed in three reference centers for ERT. Results: Five patients were familial cases (3 MPS I and 2 MPS VI). All patients. All patients were born without clinical complications and their mothers referred the first signs and symptoms (coarse face, enlarged abdomen, stiff joints, short stature) had started at 6mo to 8y: MPS I Hurler (mean 7mo), MPS I Hurler-Scheie (mean 2y), MPS I Scheie (mean 6y10mo), MPS II (mean 3y6mo) and MPS VI (mean 1y). The mean age of diagnosis was: MPS I Hurler (1y6mo), MPS I Hurler-Scheie (4y8mo), MPS I Scheie (13y7mo), MPS II and VI (5y). There were five familial cases, including a MPS VI family (two sisters) and a MPS I Scheie family (two brothers and one cousin). All patients presented progressive typical facial coarsening. Other frequent findings were: stiff joints, clowded hands, macrocrania, failure to thrive. The prevalence of developmental milestones delay and/or mental intellectual disability was: MPS I Hurler (3/3), MPS I Hurler-Scheie (3/5) and MPS II (4/8). The age of onset of ERT ranged from 1y 2mo to 31y 9mo. The follow-up time after ERT initiation ranged from 40w to 556w (mean 259w). The baseline levels of urinary GAGs were increased two to 13 folds compared to reference values according to age. Approximately 26 weeks after ERT, urinary GAGs levels decreased. Normal levels of urinary GAGs in 12/27 (44%) and slightly increased in 15/27(56%) patients were observed. Before ERT, 24/26 (92%) patients presented echocardiographic abnormalities, which persisted or worsened in spite of ERT. Polysomnography was performed in 10 patients before ERT and revealed obstructive sleep apnea in nine patients (2 MPS I Hurler, 3 MPS I Hurler-Scheie, 3 MPS II and 1 MPS VI); the apnea/hypopnea index increased after ERT. Adverse infusion reactions were reported in 55% (15/27) of patients. Most of them was observed during the first weeks of treatment and included: skin rash, arterial hypertension, fever and bronchospasm, and were solved with antihistamines, antipyretics and/or reduction of infusion rate. Severe reactions were noted in two patients. Regarding clinical complications, arterial hypertension (25%), hypoacusia (37%) and hydrocephalus (15%) were diagnosed before ERT. After ERT arterial hypertension (37%), hypoacusia (59%) and hydrocephalus (22%) were reported. Among the patients that undergone surgical procedures, five presented anesthestical complications and two patients deceased during the procedure. Conclusions: This study showed both inter and intrafamilial clinical heterogeneity. ERT is able to ameliorate but not to stop the progression of the disease that remains with high mortality rate. This study emphasizes that the early diagnosis and ERT are critical for a better outcome and for enhancing the quality of life of these patients
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Muscles, Estrogen, and Bone

Ljunggren Ribom, Eva January 2003 (has links)
<p>Sweden has one of the highest incidences of osteoporotic fractures in the world. A more sedentary lifestyle is one of several proposed reasons for the increase in osteoporosis seen in the developed countries. The aim of this thesis was primarily to study the influence of muscle strength, and body composition, on bone mineral density, BMD, in young adults. The second aim was to evaluate the possible influence of estrogen on muscle strength in women.</p><p>A population-based study of 113 subjects (53 men and 60 women) aged 22-85 showed associations for premenopausal, but not postmenopausal women, between isometric quadriceps muscle strength and BMD in the total body, lumbar spine, and femoral neck. In men there was only an association between muscle strength and BMD in the total body. Another population-based study of 125 randomly selected young adults (64 women and 61 men) showed that total body BMD, TBMD, is influenced by isokinetic knee flexion and extension strength in women but not in men where body composition influenced TBMD. In 159 randomly selected young adult women (20-39 years) knee flexion and extension strength influenced not only TBMD but also total hip BMD, and heel BMD. However, lean body mass and body weight were better predictors for BMD at these skeletal sites. An extension of this study involving 335 women again demonstrated that lean body mass is the best predictor of BMD. This study also showed that Uppsala women aged 20-39 years have a BMD that is approximately 0.1-1.2 SD (2-12 %) above international/national references. In addition marked variations in BMD T-scores between various skeletal sites were noted. </p><p><i>In Conclusion: </i>The association between muscle strength and BMD is evident in women in their early twenties but with age lean body mass and body weight becomes better predictors for BMD. In men lean body mass and body composition but not muscle strength predicted BMD. Hormone replacement therapy does not influence muscle strength and there is no association between allelic variations in the estrogen receptor alpha and muscle strength in women.</p>
140

Muscles, Estrogen, and Bone

Ljunggren Ribom, Eva January 2003 (has links)
Sweden has one of the highest incidences of osteoporotic fractures in the world. A more sedentary lifestyle is one of several proposed reasons for the increase in osteoporosis seen in the developed countries. The aim of this thesis was primarily to study the influence of muscle strength, and body composition, on bone mineral density, BMD, in young adults. The second aim was to evaluate the possible influence of estrogen on muscle strength in women. A population-based study of 113 subjects (53 men and 60 women) aged 22-85 showed associations for premenopausal, but not postmenopausal women, between isometric quadriceps muscle strength and BMD in the total body, lumbar spine, and femoral neck. In men there was only an association between muscle strength and BMD in the total body. Another population-based study of 125 randomly selected young adults (64 women and 61 men) showed that total body BMD, TBMD, is influenced by isokinetic knee flexion and extension strength in women but not in men where body composition influenced TBMD. In 159 randomly selected young adult women (20-39 years) knee flexion and extension strength influenced not only TBMD but also total hip BMD, and heel BMD. However, lean body mass and body weight were better predictors for BMD at these skeletal sites. An extension of this study involving 335 women again demonstrated that lean body mass is the best predictor of BMD. This study also showed that Uppsala women aged 20-39 years have a BMD that is approximately 0.1-1.2 SD (2-12 %) above international/national references. In addition marked variations in BMD T-scores between various skeletal sites were noted. In Conclusion: The association between muscle strength and BMD is evident in women in their early twenties but with age lean body mass and body weight becomes better predictors for BMD. In men lean body mass and body composition but not muscle strength predicted BMD. Hormone replacement therapy does not influence muscle strength and there is no association between allelic variations in the estrogen receptor alpha and muscle strength in women.

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