hyperphagia/ذرة

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الصفحة 1 من عند 21 النتائج

Energy Expenditure and Hormone Responses in Humans After Overeating High-Fructose Corn Syrup Versus Whole-Wheat Foods.

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This study sought to understand how the dietary source of carbohydrates, either high-fructose corn syrup (HFCS) or complex carbohydrates, affects energy expenditure (EE) measures, appetitive sensations, and hormones during 24 hours of overfeeding. Seventeen healthy participants with normal glucose

Dietary fat-induced hyperphagia in rats as a function of fat type and physical form.

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The influence of dietary fat on food intake and weight gain was assessed by feeding adult female rats diets that differed in the type and form of fat, as well as in the availability of other macro- and micronutrients. Compared to chow-fed controls, the various fat diets increased total food intake

Diet composition determines course of hyperphagia in developing Zucker obese rats.

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Previous observations from this laboratory indicate that, during growth, the hyperphagia of the male genetically obese Zucker rat reaches a peak or "breakpoint" and then declines. To examine the effect of dietary macronutrient content on the course of hyperphagia, groups of male lean and obese rats

Hyperphagia in rats produced by a mixture of fat and sugar.

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The hyperphagic and weight-promoting effects of feeding rats a sugar-fat mixture were compared to those of presenting only one of the two nutrients. Experimental groups were fed sugar (sucrose), fat (corn oil), or a sugar-fat mixture as an option to chow; options were in the form of water solutions

Increased hypothalamic neuropeptide Y concentration or hyperphagia in streptozotocin-diabetic rats are not mediated by glucocorticoids.

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Hypothalamic neuropeptide Y containing neurones are overactive and may mediate hyperphagia in insulin-deficient diabetic rats, but the factors stimulating them remain uncertain. To determine the possible role of glucocorticoids, we investigated the effects of the glucocorticoid receptor blocker

Behavioral components of high-fat diet hyperphagia: meal size and postprandial satiety.

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Previously, rats fed a high-fat liquid diet (HF) ad libitum consumed more kilocalories and had greater weight gain than rats fed a liquid high-carbohydrate diet (HC) of equivalent energy density (Warwick, Z. S., and H. P. Weingarten. Am. J. Physiol. Regulatory Integrative Comp. Physiol. 269:

Caloric compensatory responses to diets containing either nonabsorbable carbohydrate or lipid by obese and lean Zucker rats.

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The effects on food intake and body weight in lean and obese Zucker rats were evaluated following substitution in the diet with either 1) poorly absorbable lipid (hydrogenated soybean oil) for corn oil, or 2) nonabsorbable carbohydrate (fiber) for glucose. Lean Zucker rats compensated for the

Decreased responsiveness to dietary fat in Otsuka Long-Evans Tokushima fatty rats lacking CCK-A receptors.

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Adult Otsuka Long-Evans Tokushima fatty (OLETF) rats lack functional cholecystokinin A (CCK-A) receptors, are diabetic, hyperphagic, and obese, and have patterns of ingestion consistent with a satiety deficit secondary to CCK insensitivity. Because dietary fat potently stimulates CCK release, we

Flavor-nutrient learning is less rapid with fat than with carbohydrate in rats.

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Flavor-nutrient learning occurs when the post-ingestive consequences of a food are associated with its flavor. As a signal of the food's energy density, flavor-nutrient associations have the potential to contribute to the regulation of meal size. While all calorie sources (fat, carbohydrate,

Food intake of weanling rats with lesions in the ventromedial and dorsomedial hypothalamic nuclei in response to intragastric loading and caloric density manipulation.

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Male rats received bilateral electrolytic lesions shortly after weaning in the ventromedial (VMN) and dorsomedial (DMN) hypothalamic nuclei, respectively. A third group of rats served as sham-operated controls. The animals were subjected to intragastric preloading with 33% d-glucose and egg-white

Food intake and blood fuels after oil consumption: differential effects in normal and diabetic rats.

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The mechanisms by which fat feeding suppresses the hyperphagia of diabetic rats were examined. Rats that were allowed to consume a small amount (1.5 ml) of corn oil decreased subsequent food intake within 6 hr after ingesting. Diabetic rats decreased food intake much more than normal rats. Similar

Effect of high fat diets on energy balance and thermogenesis in brown adipose tissue of lean and genetically obese ob/ob mice.

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The effects on energy balance and brown adipose tissue thermogenesis of feeding high fat diets of differing fatty acid composition have been investigated in lean and genetically obese (ob/ob) mice. Groups of mice were fed either a low fat diet or a high fat diet based on corn oil or beef tallow for

The regulation of hepatic stearoyl-coenzyme A desaturase in obese-hyperglycaemic (ob/ob) mice by food intake and the fatty acid composition of the diet.

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1. The effects of food intake and the fatty acid composition of the diet on the hepatic stearoyl-CoA desaturase activity of obese-hyperglycaemic (ob/ob) mice were investigated. 2. Obese mice fed on a commercial mouse diet, ad libitum, had 6.5-fold more activity per liver cell than had lean mice. 3.

The effects of a high fat diet on chronic streptozotocin-diabetic rats.

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The effects of a high fat diet (30% (w/w) corn oil) on chronic streptozotocin-diabetic rats were investigated at the whole body level and at the enzyme level. The diet caused significant decreases in the extent of polydipsia (66% decrease), polyphagia (49%), polyuria (67%) and glycosuria (70%). The

Reversible suppression of food reward behavior by chronic mu-opioid receptor antagonism in the nucleus accumbens.

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Overindulgence in easily available energy-dense palatable foods is thought to be an important factor in the current obesity epidemic but the underlying neural mechanisms are not well understood. Here we demonstrate that mu-opioid receptor signaling in the nucleus accumbens may be important.

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