The aim of this study was to estimate the effect of carnitine supplementation on lipid disorders and peripheral tissue insulin sensitivity in a non-obese animal model of insulin resistance, the hereditary hypertriglyceridemic (HHTg) rat. Male HHTg rats were fed a standard diet, and half of them
Propionyl-L-carnitine (PLC) is an SCFA esterified to carnitine that plays an important role in fatty acid oxidation and energy expenditure, in addition to having a protective effect on the endothelium. In order to evaluate the effect of PLC on an animal model of obesity, insulin resistance and,
The efficacy, safety, and metabolic consequences of rapid weight loss in privately owned obese cats by means of a canned weight-reduction diet and the influence of orally administered L-carnitine on rate of weight loss, routine clinical evaluations, hepatic ultrasonography, plasma amino acid
OBJECTIVE
Obesity is an important worldwide public health problem and considered a disease of chronic low-grade inflammation. The aim of this study was to evaluate the effect of L-carnitine supplementation in comparison with moderate aerobic exercise training on serum inflammatory parameters in
Previous studies suggested the potential associations of trimethylamine N-oxide (TMAO) and its metabolic precursor l-carnitine with obesity. However, existing evidence is limited and inconsistent. In the present study, we perform a cross-sectional analysis of the associations of serum levels of TMAO
BACKGROUND
In the past, numerous studies revealed that supplementation with carnitine has multiple effects on performance characteristics and gene expression in livestock and model animals. The molecular mechanisms underlying these observations are still largely unknown. Increasing evidence suggests
The effects of dehydroepiandrosterone (DHEA) and clofibrate on mitochondrial and peroxisomal proliferation and carnitine acyltransferases [mitochondrial carnitine palmitoyltransferase (CPT) and peroxisomal carnitine octanoyltransferase (COT)] were measured in lean and obese female Zucker rats. DHEA
Plasma free carnitine and acylcarnitines were determined in man during acutely induced insulin deficiency. A 5-hr infusion of somatostatin at 6 microgram/min in 10 thin subjects produced profound, sustained hypoinsulinemia and led to rapid increases in plasma free fatty acids and ketoacids (peak
Carnitine acyltransferase of liver mitochondria prepared from obese Zucker rats has a higher sensitivity to inhibition by malonyl-CoA compared with carnitine acyltransferase of mitochondria prepared from lean Zucker rats.
In experimental animals the enhancement of hepatic fatty acid oxidation and ketogenic capacity is accompanied by a rise in the concentration of liver carnitine. Massive obesity is characterized by enhanced fatty acid turnover, insulin resistance, and often a fatty liver. Carnitine concentrations
Carnitine metabolism during starvation was studied in adult lean and obese female Zucker rats. Comparisons were made between rats starved for 0, 3, 6 or 9 d. Total plasma carnitine was not affected by obesity or starvation, but free plasma carnitine decreased with starvation. Plasma acid-soluble
We evaluated the differential effects of feeding two very-low-calorie diets upon the fractions of plasma and urinary carnitine in obese females. Ten subjects received either diet D1, a 420 kcal/day formula diet, or diet D2, a 500-600 kcal/day meat/fish/poultry diet. Plasma and urinary carnitine
Obesity is under the influence of genetic and nutritional factors. The objective was to verify whether variants in the gene encoding the carnitine palmitoyltransferase I (CPT1), a key enzyme in beta-oxidation of fatty acids, are associated with obesity phenotypes, alone or in interaction with fat
L-Carnitine (L-C) transports fatty acids into mitochondria for oxidation and is marketed as a weight loss supplement. In a double-blind investigation to test the weight loss efficacy of L-C, 36 moderately overweight premenopausal women were pair matched on Body Mass Index (BMI) and randomly assigned
We used a combined tracer technique with the stable isotopes 13C and 15N to gain further insight into the metabolic changes that accompany supplementation of L-carnitine. The aim of the present study was to investigate whether L-carnitine supplementation can influence fat oxidation, protein
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