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Metformin does not increase energy expenditure of brown fat
Keates, Andrew C. ; Bailey, Clifford J.
Biochemical pharmacology, 1993-02, Vol.45 (4), p.971-973
[Periódico revisado por pares]
New York, NY: Elsevier Inc
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Título:
Metformin does not increase energy expenditure of brown fat
Autor:
Keates, Andrew C.
;
Bailey, Clifford J.
Assuntos:
Adipose Tissue, Brown - drug effects
;
Adipose Tissue, Brown - metabolism
;
Animals
;
Biological and medical sciences
;
Cells, Cultured - drug effects
;
Diabetes Mellitus, Experimental - metabolism
;
Electron Transport Complex IV - metabolism
;
Energy Metabolism
;
Glucose - metabolism
;
Hormones. Endocrine system
;
Male
;
Medical sciences
;
Metformin - pharmacology
;
Mice
;
Oxygen Consumption
;
Pharmacology. Drug treatments
É parte de:
Biochemical pharmacology, 1993-02, Vol.45 (4), p.971-973
Notas:
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição:
The antihyperglycaemic agent metformin (dimethylbiguanide) increases metabolic energy expenditure. The possibility that this might involve increased fuel utilization by brown adipose tissue (BAT) was studied. Basal and noradrenaline-stimulated (10 −6 mol/L) oxygen consumption by isolated brown adipocytes from normal and streptozotocin diabetic mice was unaffected by incubation with metformin (10 −4 mol/L) for 30 min. Basal and insulin-stimulated (10 −8 and 10 −6 mol/L) aerobic and anaerobic glucose metabolism was also unaffected during 2 hr incubations of BAT with metformin (10 −4 mol/L). Treatment of normal mice with metformin (250 mg/kg/day) for 7 days did not significantly alter the amount or cytochrome oxidase activity of BAT, and a preliminary semi-quantitative estimation of mitochondrial uncoupling protein showed no apparent change. The results suggest that metformin does not increase energy expenditure of brown adipose tissue.
Editor:
New York, NY: Elsevier Inc
Idioma:
Inglês
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