Abstract:
:The renin-angiotensin system (RAS) is functional within adipose tissue and angiotensin II, the active component of RAS, has been implicated in adipose tissue hypertrophy and insulin resistance. In this study, captopril, an angiotensin converting enzyme (ACE) inhibitor that prevents angiotensin II formation, was used to study the development of diet-induced obesity and insulin resistance in obesity prone C57BL/6J mice. The mice were fed a high fat diet (w/w 21% fat) and allowed access to either water or water with captopril added (0.2 mg/ml). Body weight was recorded weekly and water and food intake daily. Glucose tolerance was determined after 11-12 weeks. On completion of the study (after 16 weeks of treatment), the mice were killed and kidney, liver, epididymal fat and extensor digitorum longus muscle (EDL) were weighed. Blood samples were collected and plasma analysed for metabolites and hormones. Captopril treatment decreased body weight in the first 2 weeks of treatment. Food intake of captopril-treated mice was similar to control mice prior to weight loss and was decreased after weight loss. Glucose tolerance was improved in captopril-treated mice. Captopril-treated mice had less epididymal fat than control mice. Relative to body weight, captopril-treated mice had increased EDL weight. Relative to control mice, mice administered captopril had a higher plasma concentration of adiponectin and lower concentrations of leptin and non-esterified fatty acids (NEFA). The results indicate that captopril both induced weight loss and improved insulin sensitivity. Thus, captopril may eventually be used for the treatment of obesity and Type 2 diabetes.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Weisinger RS,Stanley TK,Begg DP,Weisinger HS,Spark KJ,Jois Mdoi
10.1016/j.physbeh.2009.05.009subject
Has Abstractpub_date
2009-08-04 00:00:00pages
192-7issue
1-2eissn
0031-9384issn
1873-507Xpii
S0031-9384(09)00208-Xjournal_volume
98pub_type
杂志文章abstract::The aim of this study was to analyze the behavioral and physiological reactions of guide dogs in a distressing situation which promotes attachment behaviors towards their blind owners, and to compare such reactions with those of untrained or trainee dogs. The subjects were 57 adult Labrador and Golden retriever dogs (...
journal_title:Physiology & behavior
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journal_title:Physiology & behavior
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journal_title:Physiology & behavior
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更新日期:1989-03-01 00:00:00
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journal_title:Physiology & behavior
pub_type: 杂志文章
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