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Página 1 a partir de 501 resultados
Caffeine disposition in obesity.
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Caffeine pharmacokinetics were studied in 16 obese (mean +/- s.e. mean body weight; 110 +/- 8 kg; % ideal body weight (IBW); 186 +/- 14%) and 23 normal body weight (64 +/- 3 kg; 103 +/- 3% IBW) subjects. Eight obese and four control subjects were cigarette smokers. After abstaining from caffeine for
Caffeine pharmacokinetics in obesity and following significant weight reduction.
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OBJECTIVE
To compare caffeine pharmacokinetics (200 mg single oral dose) between obese and lean subjects and in obese subjects prior to and following weight reduction. In the obese group antipyrine (1000 mg single oral dose) pharmacokinetics were also evaluated one week before caffeine
Caffeine ingestion increases the insulin response to an oral-glucose-tolerance test in obese men before and after weight loss.
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BACKGROUND
Caffeine ingestion decreases the insulin sensitivity index (ISI) for an oral-glucose-tolerance test (OGTT) and decreases insulin-induced glucose disposal in lean male subjects during a hyperinsulinemic clamp.
OBJECTIVE
We examined the effects of caffeine ingestion on insulin and glucose
Pharmacokinetics in Morbid Obesity: Influence of Two Bariatric Surgery Techniques on Paracetamol and Caffeine Metabolism.
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The purpose of the study was to study the impact of the two most common bariatric surgery techniques on paracetamol pharmacokinetics (a marker of gastric emptying) and caffeine metabolism (a marker of liver function).
In the present prospective study, we studied 24 morbid obese patients before, at 4
Energy expenditure, body composition, and glucose metabolism in lean and obese rhesus monkeys treated with ephedrine and caffeine.
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The administration of ephedrine and caffeine (E+C) has been proposed to promote weight loss by increasing energy expenditure and decreasing food intake. We tested this hypothesis in six lean (4-9% body fat) and six mildly to moderately obese (13-44% body fat) monkeys studied during a 7-wk control
Comparison of an ephedrine/caffeine combination and dexfenfluramine in the treatment of obesity. A double-blind multi-centre trial in general practice.
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In previous separate studies, dexfenfluramine (DF) and ephedrine/caffeine (EC) have been shown to promote weight loss in obese patients as compared with placebo. In order to compare the efficacy and safety of these two anorectic drugs, 103 patients with 20-80% overweight were included in a 15-week
The effect of ephedrine/caffeine mixture on energy expenditure and body composition in obese women.
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Treatment with beta 2-agonists promotes fat loss and muscle growth in numerous species, but human studies are lacking. We studied the effect of a compound with beta 2-agonistic properties (ephedrine 20 mg/caffeine 200 mg [E + C]). Fourteen obese women were treated with a 4.2-MJ/d diet and either E +
Post-prandial thermogenesis with ephedrine, caffeine and aspirin in lean, pre-disposed obese and obese women.
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OBJECTIVE
To determine whether or not aspirin further potentiates the greater post-prandial thermogenesis induced by ephedrine with caffeine.
METHODS
Determination of the acute metabolic rate response to the following treatments: 1050 kJ liquid meal (M); meal plus ephedrine (30 mg) and caffeine (100
Cardiovascular effects of ephedrine, caffeine and yohimbine measured by thoracic electrical bioimpedance in obese women.
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Low caloric diet is a commonly accepted treatment in obesity. However, owing to moderate results, a pharmacological support has been proposed. As some efficacious drugs activate overall sympathetic activity, they might modify functions of the cardiovascular system. Three groups of subjects were
Relationship between basal metabolic rate, thermogenic response to caffeine, and body weight loss following combined low calorie and exercise treatment in obese women.
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To clarify whether there were any differences in basal metabolic rate (BMR) and thermogenic response to caffeine in individual obese women, and if so, whether such differences affected weight loss, the basal and resting metabolic rates at 30 min after a caffeine loading test (4 mg/kg ideal body
Effects and Mechanisms of Caffeine to Improve Immunologic and Metabolic Abnormalities in Diet-Induced Obese Rats.
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In obesity, there are no effective therapies for parallel immune and metabolic abnormalities, including systemic/tissue insulin-resistance/inflammation, adiposity and hepatic steatosis. Caffeine has anti-inflammation, antihepatic steatosis, and anti-insulin resistance effects. In this study, we
A randomized double-blind placebo-controlled clinical trial of a product containing ephedrine, caffeine, and other ingredients from herbal sources for treatment of overweight and obesity in the absence of lifestyle treatment.
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OBJECTIVE
To evaluate the efficacy and side effects of an herbal formulation to promote weight loss, as compared to placebo.
METHODS
12-week multicenter double-blind, placebo-controlled, randomized parallel groups design. Study conducted at three clinical sites in New York State. Subjects were
The effects of obesity and exercise on the pharmacokinetics of caffeine in lean and obese volunteers.
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The effects of obesity, exercise, and the interaction of obesity and exercise were examined in 6 caffeine naive, untrained, nonsmoking, college males (3 lean (LV), 3 obese (OV]. Each subject received caffeine (oral, 5.83 mg X kg-1 lean body weight) or placebo (50 mg citrate) prior to 3 h of seated
Effects of caffeine on energy metabolism, heart rate, and methylxanthine metabolism in lean and obese women.
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The magnitude of coffee-induced thermogenesis and the influence of coffee ingestion on substrate oxidation were investigated in 10 lean and 10 obese women, over two 24-h periods in a respiratory chamber. On one occasion the subjects consumed caffeinated coffee and on the other occasion,
Anti-obesity effect of a novel caffeine-loaded dissolving microneedle patch in high-fat diet-induced obese C57BL/6J mice.
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Natural products such as caffeine have been found to be effective in reducing body weight through lipolysis. Here, we report the successful loading of caffeine onto dissolving microneedle following inhibition of its crystal growth by hyaluronic acid (HA), the matrix material of the dissolving
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