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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.
1

Padronização de técnica histoquímica de mensuração de lipídios da epiderme de cães e mensuração de lipídios da epiderme de cães atópicos antes e após reposição tópica de lipídios e ceramidas / Standardization of histochemical technique for measurement of epidermal lipids of dogs and measurement of epidermal lipids of atopic dogs before and after topical replacement of lipid and ceramides

Salvador, Marcela Cazagrande [UNESP] 01 October 2014 (has links) (PDF)
Made available in DSpace on 2015-06-17T19:34:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-10-01. Added 1 bitstream(s) on 2015-06-18T12:49:18Z : No. of bitstreams: 1 000831481.pdf: 672200 bytes, checksum: b14ff63ab0f08f2eef79c0c150394d7c (MD5) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / A dermatite atópica canina é uma dermatopatia de origem genética, cujo principal sintoma é o prurido. Uma de suas principais características é o comprometimento da barreira epidérmica cutânea, causado por deficiência na quantidade de lipídios na epiderme destes cães. Não obstante, na literatura consultada não há uma padronização de técnica de coloração histoquímica para avaliação destes lipídios epidérmicos em cães. Este trabalho objetivou padronizar uma técnica digital de mensuração de lipídios da epiderme de cães normais utilizando-se colorações histoquímicas específicas e, por meio da coloração padronizada, mensurar a quantidade de lipídios epidérmicos de cães atópicos antes e após o tratamento com reposição tópica de lipídios, além de comparar a quantidade de lipídios da epiderme de cães atópicos com a de cães saudáveis. Para a padronização da técnica de coloração histoquímica foram utilizados vinte e cinco animais saudáveis, sendo as amostras submetidas a três colorações: hematoxilina & eosina, Sudan Red e Oil Red O. Em seguida, as amostras passaram por avaliação entre patologistas e pelo programa de análise de imagem digital, confrontando as duas técnicas. Após padronização, comparou-se a quantidade de lipídios da barreira epidérmica entre 15 cães atópicos e 30 cães saudáveis, comparando a quantidade de lipídios da epiderme da região cervical com a região axilar. Os resultados mostraram concordância entre a avaliação dos patologistas e o programa de análise digital, que ambas as colorações se prestam a este fim, mas que Sudan Red é a coloração que melhor permite a mensuração dos lipídios da barreira epidérmica e, quando comparada a camada lipídica da epiderme de cães saudáveis e cães atópicos, nota-se que estes possuem uma quantidade lipídica reduzida e, após o tratamento com reposição tópica de lipídios, os cães atópicos apresentam ... / Canine atopic dermatitis is a multifactorial skin disease with genetic origin, that causes itching as the main symptom. One of the disease's main characteristics (and a major causative factor) is the impairment of the epidermal skin barrier. This is caused, primarily, by a deficiency in the quantity of lipids in the epidermis of atopic dogs. However, no standardized histochemical technique for the evaluation of epidermal lipids in dogs exists in the literature. The objectives of this study were firstly, to standardize the measurement of lipids of the epidermis of normal dogs using specific histochemical staining. Secondly, using this standardized staining technique, ascertain the amount of epidermal lipids in atopic patients before and after treatment with topical replacement of lipids and compare with measurements from healthy dogs. For standardization of staining, epidermal samples from 25 healthy animals were taken and subjected to hematoxylin and eosin, Sudan Red and Oil Red O staining. The samples were processed using visual semi-quantitative assessment and by the digital image analysis program. After standardization, we compared the quantity of lipids in the epidermal barrier of 15 atopic dogs and 30 healthy dogs. Samples were taken from neck and axillae in all participating animals to assess any differences in lipid content between body regions. The results showed that Sudan Red provides the most accurate measurement of skin barrier lipids when comparing the lipid layer of the epidermis of healthy dogs with atopic dogs. It was found that atopic dogs exhibit a reduced quantity of lipids in the epidermal barrier prior to treatment and show a significant increase after topical replacement of lipids. Comparisons between individuals within the atopic group of animals showed that lipids from the neck occurred in smaller quantities than the axillary region. These results show that topical replacement of lipids in dogs with ...
2

Padronização de técnica histoquímica de mensuração de lipídios da epiderme de cães e mensuração de lipídios da epiderme de cães atópicos antes e após reposição tópica de lipídios e ceramidas /

Salvador, Marcela Cazagrande. January 2014 (has links)
Orientador: Luíz Henrique de Araújo Machado / Banca: Viciany Erique Fabris / Banca: Marconi Rodrigues Faria / Resumo: A dermatite atópica canina é uma dermatopatia de origem genética, cujo principal sintoma é o prurido. Uma de suas principais características é o comprometimento da barreira epidérmica cutânea, causado por deficiência na quantidade de lipídios na epiderme destes cães. Não obstante, na literatura consultada não há uma padronização de técnica de coloração histoquímica para avaliação destes lipídios epidérmicos em cães. Este trabalho objetivou padronizar uma técnica digital de mensuração de lipídios da epiderme de cães normais utilizando-se colorações histoquímicas específicas e, por meio da coloração padronizada, mensurar a quantidade de lipídios epidérmicos de cães atópicos antes e após o tratamento com reposição tópica de lipídios, além de comparar a quantidade de lipídios da epiderme de cães atópicos com a de cães saudáveis. Para a padronização da técnica de coloração histoquímica foram utilizados vinte e cinco animais saudáveis, sendo as amostras submetidas a três colorações: hematoxilina & eosina, Sudan Red e Oil Red O. Em seguida, as amostras passaram por avaliação entre patologistas e pelo programa de análise de imagem digital, confrontando as duas técnicas. Após padronização, comparou-se a quantidade de lipídios da barreira epidérmica entre 15 cães atópicos e 30 cães saudáveis, comparando a quantidade de lipídios da epiderme da região cervical com a região axilar. Os resultados mostraram concordância entre a avaliação dos patologistas e o programa de análise digital, que ambas as colorações se prestam a este fim, mas que Sudan Red é a coloração que melhor permite a mensuração dos lipídios da barreira epidérmica e, quando comparada a camada lipídica da epiderme de cães saudáveis e cães atópicos, nota-se que estes possuem uma quantidade lipídica reduzida e, após o tratamento com reposição tópica de lipídios, os cães atópicos apresentam ... / Abstract: Canine atopic dermatitis is a multifactorial skin disease with genetic origin, that causes itching as the main symptom. One of the disease's main characteristics (and a major causative factor) is the impairment of the epidermal skin barrier. This is caused, primarily, by a deficiency in the quantity of lipids in the epidermis of atopic dogs. However, no standardized histochemical technique for the evaluation of epidermal lipids in dogs exists in the literature. The objectives of this study were firstly, to standardize the measurement of lipids of the epidermis of normal dogs using specific histochemical staining. Secondly, using this standardized staining technique, ascertain the amount of epidermal lipids in atopic patients before and after treatment with topical replacement of lipids and compare with measurements from healthy dogs. For standardization of staining, epidermal samples from 25 healthy animals were taken and subjected to hematoxylin and eosin, Sudan Red and Oil Red O staining. The samples were processed using visual semi-quantitative assessment and by the digital image analysis program. After standardization, we compared the quantity of lipids in the epidermal barrier of 15 atopic dogs and 30 healthy dogs. Samples were taken from neck and axillae in all participating animals to assess any differences in lipid content between body regions. The results showed that Sudan Red provides the most accurate measurement of skin barrier lipids when comparing the lipid layer of the epidermis of healthy dogs with atopic dogs. It was found that atopic dogs exhibit a reduced quantity of lipids in the epidermal barrier prior to treatment and show a significant increase after topical replacement of lipids. Comparisons between individuals within the atopic group of animals showed that lipids from the neck occurred in smaller quantities than the axillary region. These results show that topical replacement of lipids in dogs with ... / Mestre
3

Calories vs. composition : the effects of dietary alterations on anthropometric measures and biochemical parameters in overweight women / Effects of dietary alterations on anthropometric measures and biochemical parameters in overweight women

Riggs, Amy Jo January 2002 (has links)
TITLE: Calories vs. Composition: The effect on dietary alterations on anthropometric measures and biochemical parameters in overweight women.LEARNING OUTCOME: To determine if a high-protein, low-carbohydrate, ad-libitum diet is more effective than an energy-restricted diet in promoting weight loss and improving blood lipid and insulin levels.ABSTRACT TEXT: Thirty overweight/obese (BMI: 25-35kg/m2), premenopausal women were matched for Body Mass Index (BMI) and randomly assigned to one of the two diets: (1) High Protein (HP) (30-40% protein, 40-55% fat, 10-20% CHO); (2) Energy Restricted (ER) (1200kcal/d, 20-25% fat, 15-20% protein, 55-60% CHO). Subjects were given weekly menus matching their assigned macronutrient and/or energy requirements to aid in meal planning and dietary compliance. Baseline and post-diet measures included height, weight, body composition, blood lipids (total cholesterol (TC), HDL, LDL< and triglycerides (TG)], and plasma insulin levels. There were no significant differences found among the two groups in any of the above-listed variables prior to the study. Twenty-three women completed the 6-week study (HP=11, ER= 12). Compliance to the diets was adequate as indicated by weekly 24-hour recalls and daily urinary ketone levels. Both groups lost a significant amount of weight and body fat (P<0.05), andweight and body fat losses were not significantly different between the groups. In addition, both groups experienced similar decreases in TG, TC, LDL, HDL, and insulin levels. These results indicate that a HP diet is no more effective than an ER diet in promoting favorable changes in body weight, body composition, blood lipids, and insulin levels. / Department of Family and Consumer Sciences

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