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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.
41

Influência da síndrome dos ovários policísticos e da obesidade em parâmetros vasculares relacionados ao processo de aterogênese / Influence of polycystic ovary syndrome and obesity on vascular parameters related to the process of atherogenesis

Barcellos, Cristiano Roberto Grimaldi 22 September 2008 (has links)
A síndrome dos ovários policísticos (SOP) e a obesidade estão associadas ao aumento do risco cardiovascular, mas não está estabelecido se tal aumento é determinado por estas condições propriamente ditas ou pelos fatores de risco cardiometabólicos a elas associados. Objetivo: determinar, em mulheres jovens e sem fatores de risco cardiometabólicos, a influência da SOP e da obesidade sobre parâmetros vasculares relacionados ao processo de aterogênese. Métodos: foram estudadas pacientes com SOP, subdivididas em portadoras de índice de massa corpórea (IMC) normal e obesas, as quais foram comparadas a mulheres sem SOP (grupo controle) pareadas para o IMC. Foram excluídas participantes tabagistas, com distúrbios do metabolismo da glicose, hipertensão arterial, LDL-C 160 mg/dL e triglicérides 250 mg/dL. Foram avaliados parâmetros clínicos, laboratoriais (perfis hormonal e metabólico) e vasculares [espessura íntimamédia da artéria carótida comum (EIM-ACC), complacência da artéria carótida comum (CP-ACC) e função endotelial da artéria braquial (DMF)], os quais foram avaliados de maneira não-invasiva através de imagens ultrasonográficas de alta-resolução. Para determinar a influência da SOP e da obesidade sobre tais parâmetros, foram formados grupos de acordo com a presença ou ausência de tais condições: grupo SOP vs grupo Controle, independentemente do IMC; grupo IMC normal vs grupo Obesidade, independentemente da presença da SOP. Resultados: Foram selecionadas 25 pacientes com SOP, sendo 10 com IMC normal (34,0 ± 3,2 kg/m2) e 15 obesas (22,4 ± 2,1 kg/m2) e 23 mulheres controles (12 com IMC normal e 11 obesas). As médias de testosterona livre das pacientes com SOP foram significativamente superiores às médias das mulheres controles, independentemente do IMC. As médias do HOMA-IR e da área sob a curva de insulina das pacientes obesas com SOP foram significativamente superiores às observadas nas pacientes com SOP portadoras de IMC normal e mulheres controles. A média da EIM-ACC das pacientes obesas com SOP foi significativamente superior à das mulheres controles com IMC normal (50,0 ± 4,0 vs 47,0 ± 3,0 mm.10-2; p<0,05). As médias da CP-ACC e da DMF foram semelhantes entre pacientes com SOP e mulheres controles, independentemente do IMC. Para avaliar a influência da SOP e da obesidade, as comparações foram, respectivamente: grupo SOP (n=25) vs grupo Controle (n=23); grupo IMC normal (n=22) vs grupo Obesidade (n=26). A faixa etária global foi de 26,0 ± 4,7 anos. Tanto a SOP quanto a obesidade influenciaram os parâmetros de resistência insulínica. A média da EIM-ACC foi maior no grupo SOP do que no grupo Controle (49,1 ± 1,0 vs 47,2 ± 1,0 mm.10-2; p<0,05) e semelhante entre os grupos IMC normal e Obesidade (49,1 ± 1,0 vs 47,3 ± 1,0 mm.10-2; NS). Não foi observada influência da SOP ou da obesidade na CP-ACC e na DMF. Os parâmetros vasculares estudados não se correlacionaram com as outras variáveis analisadas entre as pacientes com SOP e entre as mulheres controles. Conclusão: Em mulheres jovens e sem fatores de risco cardiometabólicos, a presença da SOP teve influência no aumento da EIM-ACC. Assim, a EIMACC pode ser o marcador inicial do processo de aterogênese nesse grupo de pacientes / Polycystic ovary syndrome (PCOS) and obesity are related to the increase in cardiovascular risk, but it is still not known if such risk is due to these conditions themselves or to the cardiometabolic risk factors associated with them. Objective: determine, in young women without cardiometabolic risk factors, the influence of PCOS as well as obesity on vascular parameters related to the process of atherogenesis. Methods: We studied patients with PCOS, subdivided in patients with normal body mass index (BMI) and obeses, who were compared with women without PCOS (control group) pairwise matched for BMI. We excluded smoking subjects, subjects with glucose metabolism disturbances, with arterial hypertension, LDC -L 160 mg/dl and with triglycerides 250 mg/dl. We evaluated clinical, laboratory (hormonal and metabolic profiles) and vascular parameters [common carotidy artery intima-media thickness (CCA-IMT), compliance of commom carotid artery (CP-CCA) and endothelium function of the braquial artery (FMD)], through a non-invasive method using high resolution ultrasound imaging. In order to determine the influence of PCOS and obesity on such parameters, groups were formed according to the presence or absence of such conditions: PCOS group vs Control group, independently of BMI; normal BMI group vs obesity group, independently of PCOS presence. Results: Twenty-five patients with PCOS were selected, being 10 with normal BMI (34.0 ± 3.2 kg/m²), 15 obeses (22.4 ± 2.1 kg/m²) and 23 control women (12 with normal BMI and 11 obeses). The mean values of free testosterone in PCOS patients were significantly higher than the means in controls, independently of BMI. The means of HOMA-IR and the area under the insulin curve in obese PCOS patients were significantly higher than the ones observed in PCOS patients with normal BMI and controls. The means of CCA-IMT in obese PCOS patients was significantly higher than in controls with normal BMI (50.0 ± 4.0 vs 47.0 ± 3.0 mm.10-2; p<0.05). The means of CP-CCA and FMD were similar between PCOS patients and controls, independently of BMI. To evaluate the influence of PCOS and obesity, the comparisons were respectively: PCOS group (n=25) vs Control group (n=23); normal BMI group (n=22) vs Obesity group (n=26). Global age range was 26.0 ± 4.7 years. PCOS as well as obesity influenced the insulin resistance parameters. The means of CCA-IMT was higher in PCOS group than in Control group (49.1 ± 1.0 vs 47.2 ± 1.0 mm.10-2; p<0.05) and similar between normal BMI and Obesity groups (49.1 ± 1.0 vs 47.3 ± 1.0 mm 10-2; NS). It was not observed any influence of PCOS or obesity in CP-CCA and in FMD. The vascular parameters studied did not correlate with the other variables analized between PCOS patients and controls. Conclusions: In young women without cardiometabolic risk factors, the presence of PCOS had influence on the increase of CCA-IMT. Thus, CCA-IMT might be the initial marker of the atherogenic process in this group of patients
42

Efeitos da exposição neonatal a esteróides sexuais no hipotálamo e ovário de ratas adultas: modelos animais da síndrome dos ovários policísticos / Effects of neonatal exposition to sex steroids on hypothalamus and ovary of adult female rats: animal models of polycystic ovary syndrome

Marcondes, Rodrigo Rodrigues 13 December 2012 (has links)
A síndrome dos ovários policísticos (SOP) é o distúrbio endócrino mais frequente em mulheres em idade reprodutiva. Sua etiologia é desconhecida, mas recentemente, fatores ambientais, como o excesso esteróides sexuais em fases precoces da vida, têm sido implicados na origem da SOP. Em ratas, o excesso de androgênios ou estrogênios na vida neonatal altera a função do eixo hipotálamo-hipófise-gonadal e induz alterações reprodutivas e metabólicas similares às observadas na SOP em humanos. O objetivo deste estudo foi analisar a expressão dos genes relacionados ao controle da secreção de GnRH (Gnrh, Gnrhr, Kiss1, Kiss1r e Ar) no hipotálamo de modelos animais de SOP e avaliar a correlação com a morfologia ovariana, níveis séricos de gonadotrofinas e esteróides sexuais, e a expressão de genes chaves na esteroidogênese ovariana (Cyp17a1 e Lhr). Foram utilizadas 30 ratas alocadas em igual número em três grupos. De acordo com os grupos, os animais receberam por injeção subcutânea, entre 0-3 dias de vida, os seguintes compostos: propionato de testosterona (1,25 mg) (grupo Testosterona); benzoato de estradiol (0,5 mg) (grupo Estradiol); e veículo (0,1 mL) (grupo Controle). Os animais foram pesados semanalmente a partir do nascimento até os 90 dias de vida. Ao completarem 90 dias, os animais foram eutanasiados e tiveram coletados o hipotálamo, os ovários e o sangue. Foi avaliada a expressão dos genes Gnrh, Gnrhr, Kiss1, Kiss1r e Ar no hipotálamo e Cyp17a1 e Lhr no ovário por PCR quantitativo em Tempo Real. O ovário também foi analisado morfológica e morfometricamente após coloração com hematoxilina e eosina (H.E.) e o sangue foi utilizado para a dosagem sérica dos hormônios LH, FSH, estradiol, progesterona e testosterona. A análise estatística foi realizada utilizando a análise de variância (ANOVA) complementada pelo teste de comparações múltiplas de Tukey. Os animais dos grupos Estradiol e Testosterona apresentaram 11 anovulação e maior peso corporal em relação ao grupo Controle. O gene Kiss1 encontrou-se hipoexpresso nos grupos Estradiol e Testosterona em relação ao grupo Controle (p<0,0001). No grupo Estradiol, o gene Kiss1r apresentou expressão aumentada em relação ao grupo Controle (p<0,01). O gene Gnrh não exibiu variações de expressão entre os grupos. A expressão de Gnrhr exibiu aumento no grupo Testosterona em relação ao grupo Estradiol (p<0,004). No grupo Testosterona, o gene do receptor de androgênio (Ar) apresentou expressão aumentada em relação ao grupo Controle (p<0,04). Quanto ao nível sérico de LH, o grupo Testosterona exibiu aumento em relação aos grupos Estradiol e Controle (p<0,001). O grupo Estradiol exibiu maior concentração sérica de estradiol em relação ao grupo Testosterona (p<0,01). Os níveis séricos de FSH, progesterona e testosterona não exibiram diferenças significativas entre os grupos. A expressão do gene Lhr apresentou-se aumentada nos grupos Estradiol e Testosterona em comparação ao Controle (p<0,003). O gene Cyp17a1 apresentou-se hiperexpresso no grupo Estradiol em relação aos grupos Controle e Testosterona (p<0,0001 e p<0,001, respectivamente). A contagem diferencial de folículos pré-antrais e antrais não diferiu significativamente entre os grupos. Os ovários dos grupos Estradiol e Testosterona apresentaram ausência de corpos lúteos e exibiram aumento da área intersticial e diminuição do volume do núcleo das células intersticiais, sendo todas essas alterações estatisticamente significativas (p<0,0001). Conclui-se que o excesso de estradiol ou testosterona na vida neonatal altera a fisiologia do hipotálamo e do ovário e leva a anovulação de ratas na vida adulta / Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women at reproductive age. Its etiology is unknown, but recently, environmental factors, such as excess of sex steroids in early life, have been compared to PCOS origin. In female rats, the excess of androgens or estrogens in neonatal life alters the hypothalamus-pituitary-gonadal axis function and induces to reproductive and metabolic alterations like those observed in human PCOS. The aim of this study is to analyze the expression of genes compared to GnRH secretion control (Gnrh, Gnrhr, Kiss1, Kiss1r e Ar) in the hypothalamus of animal models of PCOS and to evaluate the correlation with ovarian morphology, serum levels of gonadotropins and sex steroids and expression of key genes in ovarian steroidogenesis (Cyp17a1 e Lhr). 30 rats were used and allocated equally into three groups. According to the groups, animals received a subcutaneous injection, between 0-3 days old, of the following compounds: testosterone propionate (1.25 mg) (Testosterone group); estradiol benzoate (0.5 mg) (Estradiol group) and vehicle (0.1 mL) (Control group). Animals were weighed weekly from birth until 90 days of life. At 90 days, the animals were euthanized and were collected the hypothalamus, the ovaries and blood. We evaluated the expression of genes Gnrh, Gnrhr, Kiss1, Kiss1r and Ar in hypothalamus and Lhr and Cyp17a1 in ovary, both by quantitative Real-Time PCR. The ovary was also analyzed morphologically and morphometrically after staining with hematoxylin and eosin (H.E.) and the blood was used for evaluation of serum levels of LH, FSH, estradiol, progesterone and testosterone. Statistical analysis was performed using analysis of variance (ANOVA) complemented by Tukeys multiple comparisons test. The animals of the Testosterone and Estradiol groups had anovulation and had higher body weight compared to the Control group. The Kiss1 gene was downregulated in Estradiol and 13 Testosterone groups in relation to the Control group (p<0.0001). In Estradiol group, Kiss1r gene expression was increased in relation to the control group (p<0.01). The Gnrh gene expression did not show variations between groups. The Gnrhr expression was increased in Testosterone group in relation to Estradiol group (p<0.004). In Testosterone group, the androgen receptor gene (Ar) showed an increased expression compared to the Control group (p<0.04). Testosterone group exhibited increased serum levels of LH in comparison to Control and Estradiol groups (p<0.001). Estradiol group exhibited higher serum levels of estradiol compared to Testosterone group (p<0.01). Serum levels of FSH, progesterone and testosterone exhibited no significant differences between groups. Lhr gene expression was increased in Estradiol and Testosterone groups in comparison to the control (p<0.003). The Cyp17a1 gene was upregulated in Estradiol group compared to Testosterone and Control groups (p<0.0001 and p<0.001, respectively). The differential counting of preantral and antral follicles did not differ significantly between groups. Ovaries of the animals of Estradiol and Testosterone groups showed absence of corpora lutea and exhibited increased interstitial area and reduced interstitial cells nuclear volume, and all of these changes were statistically significant (p<0.0001). It was concluded that excess of estradiol or testosterone in neonatal life alters the hypothalamic and ovarian physiology and leads to anovulation in rats at adulthood
43

Polycystic Ovary Syndrome Treatment

Patterson, Moneka Angilene 01 January 2017 (has links)
Polycystic ovary syndrome (PCOS) is an endocrine system disorder that affects women of reproductive age. If not treated properly, PCOS can lead to infertility. Lack of proper treatment of PCOS may also result in medical complications such as diabetes or heart disease. The rural clinic where this project took place did not have a mandatory guideline for treatment of PCOS; therefore, no standardized method of diagnosis or treatment of PCOS existed. The purpose of this project, guided by the IOWA evidence-based practice model, was to educate providers on the evidence-based guideline for diagnosis and treatment of PCOS outlined by the Endocrine Society Taskforce. The guideline was selected after a comprehensive literature review and was used to develop an educational program that was provided to 5 nurse practitioners, the medical director and staff. A pre-test post-test design was used to determine if the participants understood the content from the guideline that was presented. Results showed that the researcher-developed test administered to participants yielded scores of 74 on the pre-test and increased after the education program with all participants scoring 100 on the post-test. The guideline used for the education was then presented to the clinic for implementation with the assistance of the medical director's support. The project provided an evidence-based guideline for diagnosing and treating PCOS and raised awareness of PCOS among all staff in a rural clinic where many patients with PCOS are treated. Positive social change may result as providers are better prepared to deliver evidence-based care for PCOS and as infertility and complications of untreated PCOS are reduced.
44

Polikistik over sendromlu hastalarda laparoskopik ovaryan multineedle intervention (Lomni) yönteminin hirsutizm, adet düzeni ve hormon düzeylerine etkisi /

Köse, Seyit Ali. Kaya, Hakan. January 2004 (has links) (PDF)
Tez (Tıpta Uzmanlık) - Süleyman Demirel Üniversitesi, Tıp Fakültesi, Kadın Hastalıkları ve Doğum Anabilim Dalı, 2004. / Bibliyografya var.
45

Μελέτη του πολυμορφισμού deletion/insertion του γονιδίου του μετατρεπτικού ενζύμου της αγγειοτενσίνης ως δείκτης αντίστασης στην ινσουλίνη σε γυναίκες με Σύνδρομο Πολυκυστικών Ωοθηκών

Κατσαντώνη, Ελένη 17 September 2012 (has links)
Το σύνδρομο πολυκυστικών ωοθηκών (PCOS) αποτελεί την πιο συχνή ενδοκρινολογική διαταραχή των γυναικών αναπαραγωγικής ηλικίας που χαρακτηρίζεται από κεντρικού τύπου παχυσαρκία, ακμή , υπερτρίχωση και διαταραχές των εμμηνορησιακών κύκλων που οφείλονται στην υπερανδρογοναιμία και την χρόνια ανωοθυλακιορρηξία. Οι γυναίκες με PCOS αναπτύσσουν και μεταβολικού τύπου διαταραχές όπως η υπερινσουλιναιμία λόγω αντίστασης στην ινσουλίνη, η υπέρταση, ο σακχαρώδης διαβήτης, η δυσλιπιδαιμία και το μεταβολικό σύνδρομο. Σημαντικό ρόλο στην παθοφυσιολογία της των παραπάνω μεταβολικών διαταραχών ασκεί το σύστημα Ρενίνης-Αγγειοτενσίνης-Αλδοστερόνης (Renin-Angiotensin-Aldosterone System – RAAS) που διακρίνεται σε ενδοκρινές κι ιστικό. Στο ιντρόνιο 16 του γονιδίου του ενζύμου ACE(17q23) έχει βρεθεί ο πολυμορφισμός I/D που προκύπτει από την παρουσία ( Insertion– I) ή την απουσία (Deletion–D) μιας Αlu αλληλουχίας μήκους 287 bp, δημιουργώντας τρείς διακριτούς γονότυπους: II, ID και DD Με δεδομένο το ρόλο του συστήματος RAAS σε σχέση με τους παράγοντες κινδύνου για καρδιαγγειακή νόσο και κυρίως με την αντίσταση στην ινσουλίνη, ο ρόλος του πολυμορφισμού ACE I/D έχει καταστεί αντικείμενο μελέτης ως προς την εκδήλωση καρδιαγγειακών συμβαμάτων. Στην παρούσα μελέτη προσδιορίστηκε ο πολυμορφισμός ACE I/D σε 156 φυσιολογικές γυναίκες και σε 212 γυναίκες με την πιο βαριά μορφή του συνδρόμου πολυκυστικών ωοθηκών που είναι η ύπαρξη βιοχημικής υπερανδρογοναιμίας και χρόνιας ανωοθυλακιορηξίας. Το συμπέρασμα μετά τη στατιστική ανάλυση ήταν ότι ο γονότυπος ΙΙ συνδέεται στατιστικώς σημαντικά με την την αντίσταση στην ινσουλίνη κι ο γονότυπος ΙD με τα επίπεδα της 17-OH προγεστερόνης, πρόδρομης ορμόνης κατά την βιοσύνθεση των ανδρογόνων που ίσως σημαίνει με τοπικά αυξημένη ενεργότητα του RAS. Tα ευρήματα αυτά ανάγουν τον πολυμορφισμό της ACE σε ένα πιθανά πολύτιμο δείκτη αυξημένου καρδιαγγειακού κινδύνου στις γυναίκες με PCOS. / The polycystic ovary syndrome (PCOS) is the most common endocrine disorder of women of reproductive age, characterized by central obesity, acne, hirsutism and disorders menstrual cycles due to hyperandrogonemia and chronic anovulation. Women with PCOS develop type and metabolic disorders such as hyperinsulinemia due to insulin resistance, hypertension, diabetes mellitus, dyslipidemia and metabolic syndrome. Important role in the pathophysiology of these metabolic disorders has the renin-angiotensin-aldosterone system (Renin-Angiotensin-Aldosterone System - RAAS), which is divided into endocrine and tissue. In intron 16 of the gene of the enzyme ACE (17q23) has found a polymorphism I / D resulting from the presence (Insertion-I) or absence (Deletion-D) of an Alu sequence length of 287 bp, creating three distinct genotypes: II,ID,DD. Given the role of the RAAS system in relation to risk factors for cardiovascular disease and especially with insulin resistance, the role of polymorphism ACE I / D has become a subject of study as to the occurrence of cardiovascular events. This study identified a polymorphism ACE I / D in 156 healthy women and 212 women with the most severe form of polycystic ovarian syndrome is the presence of biochemical hyperandrogonemia and chronic anovulation. The conclusion after statistical analysis was that the II genotype is associated statistically significant with insulin resistance and ID genotype with levels of 17-OH progesterone hormone precursor in the biosynthesis of androgens which it might means locally increased activity of RAS. These findings suggest the polymorphism of the ACE in a potentially valuable indicator of increased cardiovascular risk in women with PCOS.
46

Chronic Passive Heat Exposure and Cardiometabolic Health in Obese Women with Polycystic Ovary Syndrome

Ely, Brett 06 September 2018 (has links)
Polycystic Ovary Syndrome (PCOS) is a complex endocrine disorder that increases a woman’s risk of developing cardiovascular disease and diabetes. Women with PCOS have extremely high rates of obesity, insulin resistance, cardiovascular morbidity and mortality. Obese women with PCOS also tend to have elevated sympathetic nerve activity and systemic markers of inflammation, which likely contribute to cardiometabolic risk and PCOS pathogenesis. While few medication or lifestyle intervention options for women with PCOS target elevated sympathetic nerve activity, inflammation, and insulin resistance, passive heat exposure shows promise as a novel intervention for improving cardiovascular and metabolic health in this population. Therefore, the purpose of this study was to examine changes in inflammation, cardiovascular, autonomic, and metabolic health in obese women with PCOS following a 30-session, 8-10 week chronic passive heat intervention (termed ‘heat therapy’). Eighteen obese women with PCOS (Age: 27±1y, BMI 41.3±1.1 kg·m2) were matched for age and body mass index (BMI), then divided into heat therapy (HT) or time control (CON). At the beginning (Pre), middle (Mid), and end (Post) of 8-10 weeks, subjects participated in study days to assess vascular, autonomic, and metabolic function, and additionally underwent a subcutaneous fat biopsy in Pre and Post. HT subjects took part in 30 one-hour hot tub sessions over 8-10 weeks (3-4 per week) in 40.5˚C water, while CON subjects completed all other testing but were not exposed to heat. No change in BMI was observed over the study in HT or CON; however; HT subjects exhibited dramatically improved vascular and metabolic function, as well as reduced sympathetic nerve activity and circulating inflammatory markers. In fat biopsies, insulin signaling was improved in HT subjects, while CON subjects remained stable over time. These findings show promise for HT as a treatment option for obese women with PCOS to improve cardiovascular and metabolic risk profiles. This dissertation includes previously published co-authored material.
47

Estudo caso-controle em genes polimórficos das vias esteróide (ER-alfa e ER-beta) e da insulina (INSR, PA-1 e IGF2) na síndrome do ovário policístico

Cirilo, Priscila Daniele Ramos [UNESP] 30 October 2006 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:26:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-10-30Bitstream added on 2014-06-13T20:33:38Z : No. of bitstreams: 1 cirilo_pdr_me_botib.pdf: 1747486 bytes, checksum: 22391af2b4ceae30db573f0e3646f8d4 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / A Síndrome do Ovário Policístico (SOP) é uma doença heterogênea que acomete principalmente mulheres em idade reprodutiva e é caracterizada por alterações clínicas como hiperandrogenismo, anovulação crônica e irregularidades menstruais e metabólicas, como resistência insulínica, obesidade, hiperlipidemia e diabetes mellitus tipo 2. Esta síndrome está associada com o risco aumentado de desenvolvimento de doenças cardiovasculares e tromboembólicas. A síndrome HAIR-AN possui manifestações clínicas semelhantes a SOP, porém por critérios de classificação atuais, compõe diagnóstico diferencial apresentando resistência insulínica severa e hiperandrogenismo. Considerando o fenótipo heterogêneo destas patologias, polimorfismos em genes da via de esteróides e da insulina podem estar associados com hiperandrogenismo e hiperinsulinemia. Foram genotipadas para os polimorfismos nos genes ER-α, ER-β, INSR, IGF2 e PAI-1 41 mulheres com fenótipo SOP, 16 com fenótipo HAIR-AN e 49 controles livres da doença. As regiões polimórficas dos genes ER-α e ER-β foram submetidas a análise automatizada no seqüenciador ABI Prism 377 DNA Sequencer para determinação do número de repetições [TA]n e [CA]n, respectivamente. Os alelos foram classificados em curtos ou longos (ER-α - alelos curtos: <15 e longos ≥15 repetições; ER-β - os alelos curtos: ≤22 e longos >22 repetições). A genotipagem de INSR e IGF2 contendo os polimorfismos C/T e A/G, respectivamente, foi realizada por PCR-RFLP com as enzimas de restrição PmlI e ApaI, respectivamente. Para a observação do polimorfismo 5G/4G do gene PAI-1, utilizou-se a técnica de PCR-SSCP e seqüenciamento direto. Não foram observadas diferenças estatísticas significativas entre os genótipos dos genes ER-α, ER-β, INSR, IGF2 e PAI-1 entre casos e controles... / Polycystic Ovary Syndrome (PCOS) is a heterogeneous disorder which is common in reproductive age women and characterized by reproductive and clinical manifestations as hyperandrogenism, anovulatory infertility, increased ovarian secretion, and hyperinsulinaemia, as insulin resistance, type 2 diabetes mellitus, and obesity. The PCOS have been associated with increased risk for development cardiovascular and thromboembolic events. The syndrome of hyperandrogenism, insulin resistance, and acanthosis nigricans (HAIR-AN syndrome) was included in the PCOS subset. However, actually HAIR-AN syndrome shows a differential diagnosis with severe insulin resistance and hyperandrogenism. Genetic polymorphisms in insulin action and steroid pathways genes can be associated with hyperinsulinaemia and hyperandrogenism in PCOS and HAIR-AN patients. The ER-alfa, ER-ß, INSR, IGF2, and PAI-1 genes polymorphisms were evaluated in 41 women with PCOS, 16 women with HAIR-AN, and 49 disease-free control women. The ER-alfa and ER-ß genes polymorphisms were investigated by automated analysis (ABI Prism 377 DNA Sequencer) to determine the [TA]n and [CA]n repeats number, respectively. The alleles were classified as short and long (ER-alfa: <15 and .15 repeats, respectively; and ER-alfa: .22 and >22 repeats, respectively). The INSR and IGF2 genes polymorphisms (C/T and A/G, respectively) were performed by PCR-RFLP methodology using the PmlI and ApaI restriction enzymes, respectively. The PAI-1 gene polymorphisms (5G/4G) were detected by PCR- SSCP and direct sequencing methodologies. No statistical differences were observed between cases and controls for all genes analyzed. However, the comparison between clinical and laboratorial data with the genotypes showed statistical differences (p<0,05). The grouped polymorphisms analysis performed by NeoGene Analysis software defined genotypic classes that can be associated with pathophysiology of the PCOS.
48

O hiperandrogenismo influencia no desenvolvimento de síndrome metabólica em pacientes com síndrome dos ovários policísticos?

Rehme, Marta Francis Benevides [UNESP] 20 August 2009 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:35:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-08-20Bitstream added on 2014-06-13T19:24:59Z : No. of bitstreams: 1 rehme_mfb_dr_botfm.pdf: 2280081 bytes, checksum: b44989e75865f4acff4695729feffce0 (MD5) / A síndrome dos ovários policísticos (SOP) afeta 5 a 8% das mulheres no menacme e é caracterizada pela anovulação crônica e hiperandrogenismo. A obesidade central e a resistência insulínica (RI) são freqüentes na SOP e desempenham um papel fundamental na etiopatogenia da síndrome metabólica (SM). O hiperandrogenismo tem sido questionado como um fator importante no desenvolvimento da SM em mulheres com SOP. Verificar se o hiperandrogenismo influencia no desenvolvimento de síndrome metabólica em pacientes com SOP. Foram avaliados retrospectivamente os dados clínicos, bioquímicos e ultrassonográficos de 180 mulheres com SOP diagnosticadas pelos critérios de Rotterdam e de 70 mulheres com obesidade simples. As pacientes com SOP foram classificadas de acordo com o índice de massa corporal (IMC) em SOP não obesas e SOP obesas. As pacientes obesas simples não apresentaram hiperandrogenismo clínico nem bioquímico. O índice de sensibilidade à insulínica (ISI) foi avaliado pelo HOMA-IR e ISI de Matsuda e DeFronzo. A SM foi diagnosticada pelos critérios do NCEP-ATP III com modificações sugeridas pelo consenso de Rotterdam. A média de idade das pacientes foi de 27,3 + 4,7 no grupo das pacientes SOP não obesas; 28,8 + 5,0 nas SOP obesas e 27,4 + 5,2 nas obesas simples (p=0, 0773), e o IMC foi de 25,1+3,0 kg/m2; 37,0+ 5,5 kg/m2 e 36,0+ 4,2 kg/m2 respectivamente (p<0, 001). A prevalência de RI e SM não diferiu entre as pacientes obesas com e sem SOP e foi significativamente maior do que nas SOP não obesas (p<0, 001). Entretanto a prevalência de SM foi maior nas SOP obesas com hiperandrogenismo... / Polycystic ovary syndrome (PCOS) affects 5-8% of women at menacme and is characterized by chronic anovulation and hyperandrogenism. Central obesity and insulin resistance (IR) are frequent in PCOS and play a leading role in the etiopathogeny of metabolic syndrome (MS). Hyperandrogenism has been suggested as an important factor in the development of MS in women with PCOS. To determine whether hyperandrogenism influences the development of metabolic syndrome in patients with PCOS. Clinical, biochemical and ultrasonographic data on 180 women with PCOS, as diagnosed by the Rotterdam criteria, and 70 women with simple obesity were retrospectively analyzed. According to body mass index, PCOS patients were classified as nonobese with PCOS and obese with PCOS. No clinical or biochemical hyperandrogenism was observed in patients with simple obesity. Insulin sensitivity indices (ISI) were assessed as proposed by HOMA-IR and ISI (Matsuda and De Fronzo). MS was diagnosed based on NCEP-ATP III criteria with modifications suggested by the Rotterdam consensus. Mean age was 27.3 + 4.7 among non-obese patients with PCOS, 28.8 + 5.0 in obese patients with POS, and 27.4 + 5.2 in those with simple obesity (p=0.0773), while BMI was 25.1+3.0 kg/m2, 37.0+ 5.5 kg/m2 and 36.0+ 4.2 kg/m2, respectively (p<0.001). The prevalence of IR and MS did not differ between obese patients with and without PCOS, and was significantly higher in these patients than in non-obese women with PCOS (p<0.001). The prevalence of MS, however, was higher... (Complete abstract click electronic access below)
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Prevalência de resistência à insulina, intolerância à glicose e diabetes mellitus tipo 2 em pacientes com síndrome doa ovários policísticos(SOP) /

Santos, Ana Gabriela Pontes. January 2009 (has links)
Orientador: Anaglória Pontes / Banca: Júlio Cesar Rosa e Silva / Banca: Walquíria de Paula Pimenta / Resumo: A síndrome dos ovários policísticos (SOP) é uma endocrinopatia comum em mulheres no menacme, com prevalência variando entre 5 a 10%. Em vários estudos, pacientes com SOP apresentam risco aumentado para o desenvolvimento das anormalidades do metabolismo da glicose. O diabetes mellitus está entre as 10 maiores causas de mortalidade no Brasil decorrente das complicações micro e macrovasculares. Avaliar a prevalência de resistência à insulina (RI), intolerância à glicose (IG) e diabetes mellitus tipo 2 (DM) nas pacientes com diagnóstico de SOP. Foram avaliados retrospectivamente os dados clínicos, bioquímicos e ultra-sonográficos de 247 pacientes com o diagnóstico de SOP. Para a avaliação do grau de RI, utilizou-se um grupo de 101 mulheres com ciclos menstruais regulares sem hiperandrogenismo. O diagnóstico de RI foi obtido utilizando-se os seguintes valores de corte: insulinemia > 12 μIU/ml, HOMA-IR > 2,71, QUICKI < 0,333, ISI < 4,75 e relação glicemia / insulina < 6,4. O diagnóstico de IG e DM tipo 2 foi realizado por meio do teste de tolerância à glicose oral (TTGO) de acordo com os critérios do WHO, 1985 e comparado ao diagnóstico pela glicemia de jejum (ADA, 2003). Para a análise estatística dos resultados, foi utilizado o teste de qui-quadrado para a associação entre as variáveis, e para as variáveis quantitativas foram utilizadas a estatística descritiva e análise de variância seguida do método de Tukey ou t de student. As pacientes com SOP apresentaram idade entre 12 a 40 anos (24,8 ± 6,3) e índice de massa corpórea entre 18,3 a 54,9 Kg/m² (32,5 ± 7,6). O percentual de pacientes obesas foi de 64%. A RI foi detectada em 54,2% das pacientes pela relação glicemia / insulina, em 59,9% pelos índices de HOMA-IR e QUICKI, em 70,6% pelo ISI e 61,9% apresentaram insulinemia > 12 μIU/ml. A RI foi maior quanto... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The polycystic ovary syndrome (PCOS) is a common endocrinopathy in women during menacme, with a prevalence ranging from 5 to 10%. In several studies, patients with PCOS have shown increased risk for developing glucose metabolism abnormalities. Diabetes mellitus is among the 10 major causes of mortality resulting from micro and macrovascular causes in Brazil. To evaluate the prevalence of insulin resistance (IR), impaired glucose tolerance (IGT) and type-2 diabetes mellitus (DM) in patients diagnosed with PCOS. The clinical, biochemical and ultrasonographic data of 247 patients diagnosed with PCOS were retrospectively analyzed. To compare IR levels, a group of 101 women with regular cycles without hyperandrogenism was used. IR diagnosis was performed by using the following cutoff values: insulinemia > 12 μIU/ml, HOMA-IR > 2.71, QUICK < 0.333, ISI < 4.75 and glycemia / insulin ratio < 6.4. The GI and type-2 DM diagnosis was performed by means of the oral glucose tolerance test (OGTT), according to WHO criteria, 1985 and compared with fasting plasma glucose diagnosis (ADA, 2003). The results were interpreted by the chisquare test for association between variables, and descriptive statistics and analysis of variance followed by Tukey's or Student's t tests were used for quantitative variables... (Complete abstract clic, electronic access below) / Mestre
50

O hiperandrogenismo influencia no desenvolvimento de síndrome metabólica em pacientes com síndrome dos ovários policísticos?

Rehme, Marta Francis Benevides. January 2009 (has links)
Orientador: Anaglória Pontes / Banca: Tamara Goldberg / Banca: Marcos Felipe Silva de Sá / Banca: José Alcione Macedo Almeida / Banca: Cleusa Cascaes Dias / Resumo: A síndrome dos ovários policísticos (SOP) afeta 5 a 8% das mulheres no menacme e é caracterizada pela anovulação crônica e hiperandrogenismo. A obesidade central e a resistência insulínica (RI) são freqüentes na SOP e desempenham um papel fundamental na etiopatogenia da síndrome metabólica (SM). O hiperandrogenismo tem sido questionado como um fator importante no desenvolvimento da SM em mulheres com SOP. Verificar se o hiperandrogenismo influencia no desenvolvimento de síndrome metabólica em pacientes com SOP. Foram avaliados retrospectivamente os dados clínicos, bioquímicos e ultrassonográficos de 180 mulheres com SOP diagnosticadas pelos critérios de Rotterdam e de 70 mulheres com obesidade simples. As pacientes com SOP foram classificadas de acordo com o índice de massa corporal (IMC) em SOP não obesas e SOP obesas. As pacientes obesas simples não apresentaram hiperandrogenismo clínico nem bioquímico. O índice de sensibilidade à insulínica (ISI) foi avaliado pelo HOMA-IR e ISI de Matsuda e DeFronzo. A SM foi diagnosticada pelos critérios do NCEP-ATP III com modificações sugeridas pelo consenso de Rotterdam. A média de idade das pacientes foi de 27,3 + 4,7 no grupo das pacientes SOP não obesas; 28,8 + 5,0 nas SOP obesas e 27,4 + 5,2 nas obesas simples (p=0, 0773), e o IMC foi de 25,1+3,0 kg/m2; 37,0+ 5,5 kg/m2 e 36,0+ 4,2 kg/m2 respectivamente (p<0, 001). A prevalência de RI e SM não diferiu entre as pacientes obesas com e sem SOP e foi significativamente maior do que nas SOP não obesas (p<0, 001). Entretanto a prevalência de SM foi maior nas SOP obesas com hiperandrogenismo... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Polycystic ovary syndrome (PCOS) affects 5-8% of women at menacme and is characterized by chronic anovulation and hyperandrogenism. Central obesity and insulin resistance (IR) are frequent in PCOS and play a leading role in the etiopathogeny of metabolic syndrome (MS). Hyperandrogenism has been suggested as an important factor in the development of MS in women with PCOS. To determine whether hyperandrogenism influences the development of metabolic syndrome in patients with PCOS. Clinical, biochemical and ultrasonographic data on 180 women with PCOS, as diagnosed by the Rotterdam criteria, and 70 women with simple obesity were retrospectively analyzed. According to body mass index, PCOS patients were classified as nonobese with PCOS and obese with PCOS. No clinical or biochemical hyperandrogenism was observed in patients with simple obesity. Insulin sensitivity indices (ISI) were assessed as proposed by HOMA-IR and ISI (Matsuda and De Fronzo). MS was diagnosed based on NCEP-ATP III criteria with modifications suggested by the Rotterdam consensus. Mean age was 27.3 + 4.7 among non-obese patients with PCOS, 28.8 + 5.0 in obese patients with POS, and 27.4 + 5.2 in those with simple obesity (p=0.0773), while BMI was 25.1+3.0 kg/m2, 37.0+ 5.5 kg/m2 and 36.0+ 4.2 kg/m2, respectively (p<0.001). The prevalence of IR and MS did not differ between obese patients with and without PCOS, and was significantly higher in these patients than in non-obese women with PCOS (p<0.001). The prevalence of MS, however, was higher... (Complete abstract click electronic access below) / Doutor

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