The Effects of Catecholamines, Glucagon, and Diet on Enzyme Activities in Brown Fat and Liver of the Rat

1974 ◽  
Vol 52 (9) ◽  
pp. 739-743 ◽  
Author(s):  
Peter Hahn ◽  
Lorne T. Kirby

The effects of a high carbohydrate diet fed to young rats for 24–48 h on phosphoenolpyruvate carboxykinase, malic enzyme, citrate-cleavage enzyme, and fatty acid synthetase could be overcome by injecting the animals with glucagon (1 mg/100 g body weight) or norepinephrine (20 μg/100 g body weight) four times a day. The same effect was achieved with 50 mg ephedrine added to the 24 h diet. The catecholamines were more effective in brown fat, whereas glucagon seemed somewhat more effective in the liver.

2004 ◽  
Vol 164 (2) ◽  
pp. 210 ◽  
Author(s):  
Nicholas P. Hays ◽  
Raymond D. Starling ◽  
Xiaolan Liu ◽  
Dennis H. Sullivan ◽  
Todd A. Trappe ◽  
...  

2013 ◽  
Vol 33 (6) ◽  
pp. 494-502 ◽  
Author(s):  
Andreza Lúcia Menezes ◽  
Mayara Peron Pereira ◽  
Samyra Lopes Buzelle ◽  
Maísa Pavani dos Santos ◽  
Suélem Aparecida de França ◽  
...  

Nutrition ◽  
2014 ◽  
Vol 30 (4) ◽  
pp. 473-480 ◽  
Author(s):  
Suélem Aparecida de França ◽  
Maísa Pavani dos Santos ◽  
Roger Vinícius Nunes Queiroz da Costa ◽  
Mendalli Froelich ◽  
Samyra Lopes Buzelle ◽  
...  

Nutrients ◽  
2016 ◽  
Vol 8 (11) ◽  
pp. 682 ◽  
Author(s):  
Lorena da Silva-Santi ◽  
Marina Antunes ◽  
Silvana Caparroz-Assef ◽  
Fabiana Carbonera ◽  
Laureane Masi ◽  
...  

1981 ◽  
Vol 59 (4) ◽  
pp. 355-357 ◽  
Author(s):  
P. Hahn ◽  
J. P. Skala

Plasma levels of total and acylcarnitine and the activities of carnitine acetyltransferase (CAT) and carnitine, palmitoyltransferase (PCT) in liver and CAT in brown fat were determined in young obese (ob/ob) mice and their littermates during starvation. Plasma levels of acylcarnitine and β-hydroxybutyrate rose equally in both groups. Total carnitine levels, however, decreased in lean and rose in obese animals. Hepatic PCT and phosphoenolpyruvate carboxykinase activities rose more in lean than obese mice and brown fat CAT activity decreased in the obese group. Fatty acid synthetase activity decreased equally in the liver in obese mice and their lean littermates.


2018 ◽  
Vol 11 (13) ◽  
pp. 200
Author(s):  
Nurul Hidayah ◽  
Ketut Adnyana I ◽  
Ketut Adnyana I ◽  
Neng Fisheri ◽  
Neng Fisheri ◽  
...  

Objective: The prevalence of obesity increases each year globally. Multifactorial etiology of obesity requires therapy management including changing of diet and medicines. Some of obesity drugs have shown ineffectiveness and safety. The previous study showed that water extract of tamarind could reduce body weight (bw). This study aimed to test the activity fraction of water extract tamarind as antiobesity using high carbohydrate diet.Method: The preventive research of antiobesity had done by given water fraction and ethyl acetate fraction of water extract tamarind following with induced high carbohydrate diet during 6th weeks in male Wistar rats. The parameters had observed including consumption of food, body weight, weight of feces, volume of urine, total cholesterols, triglycerides, blood glucose, index of organs, and accumulation of body fat.Result: The ethyl acetate fraction at doses 4.5 mg/kg bw has shown significantly effect to decrease of total cholesterols level and decrease of triglycerides level at weeks 6 (p<0.05). All the tests of fraction have shown activity inhibition of increased body weight, decrease of appetite, total cholesterols, triglycerides, and blood glucose. Meanwhile, mechanism action of antiobesity as increase defecation, urination, and decrease index of organs and accumulation of body fat have not shown by all these test fractions.Conclusion: The ethyl acetate fraction at doses of 4.5 mg/kg bw can inhibit raising of body weight, decrease of total cholesterols, and triglycerides level greater than the other test groups, where increasing of these levels of blood biochemistry was closely related to the pathology of obesity.


Circulation ◽  
2012 ◽  
Vol 125 (suppl_10) ◽  
Author(s):  
Yong Yan Song ◽  
Ren Rong Gong ◽  
Min Shan Hu ◽  
Zhen Zhang ◽  
Hui Liu ◽  
...  

Both apolipoprotein gene polymorphism and high-carbohydrate diet have been found to be associated with serum lipid levels. However, the effects of their interaction on serum lipid profiles have not been well elucidated yet. We assessed the hypothesis that the subjects with different genotypes of the -75G/A polymorphism in the promoter region of the apolipoprotein A-I gene ( APOA1 ) have different serum lipid responses upon a high-carbohydrate diet. Fifty-six healthy university students (27 males and 29 females, 22.89&#177;1.80 years) were given a washout diet of 54% carbohydrates for seven days, followed by a high-carbohydrate diet of 70% carbohydrates for six days without total energy restriction. Anthropometric indexes and serum lipids at baseline, after the washout diet, and after the high-carbohydrate diet, as well as the APOA1 -75G/A polymorphism were analyzed. The male A carriers of the APOA1 -75G/A polymorphism consistently had higher levels of apolipoprotein A-I ( p =0.008 at baseline, p =0.031 after the washout diet, and p =0.009 after the high-carbohydrate diet diet), but higher levels of high-density lipoprotein cholesterol (HDL-C) only at baseline ( p =0.048) and after the high-carbohydrate diet ( p =0.042) than the males with the GG genotype, and experienced increases in HDL-C ( p =0.023) and apolipoprotein A-I ( p =0.012) and decreases in body weight ( p =0.017) and body mass index (BMI) ( p =0.018) after the high-carbohydrate diet when compared to those after the washout diet. In conclusion, the high-carbohydrate diet can increase the serum HDL-C and apolipoprotein A-I concentrations in the males carrying the A allele of the APOA1 -75G/A polymorphism. The effects are associated with the decreases of body weight and BMI. These results may provide experimental evidences for the personalized dietary interference in the country with the largest population in the world.


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