homeostasis/metabolism
• blood glucose levels are lower in males after 19 weeks on a standard chow diet
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• lower gross energetic efficiencies (energy gain per kilocalorie of food consumed)
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• after 8 weeks on a high-fat diet, females weigh 12.7% less and have 46.5% less fat mass than controls, however leptin levels are normal
• after 8 weeks of a high-fat diet, males weigh 10.9% less and have 16.5% less fat mass than controls, however leptin levels are normal
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• significant reduction in respiratory quotient, but not in oxygen consumption, after 19 weeks on a high-fat diet
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• ghrelin administration fails to stimulate food intake and to activate arcuate nucleus neurons
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growth/size/body
• females, but not males, on standard chow diet for 19 weeks weigh 11.7% less than wild-type
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• after 8 weeks on a high-fat diet, females weigh 12.7% less and have 46.5% less fat mass than controls, however leptin levels are normal
• after 8 weeks of a high-fat diet, males weigh 10.9% less and have 16.5% less fat mass than controls, however leptin levels are normal
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adipose tissue
• females on a standard chow diet for 19 weeks have 35.6% less body fat than wild-type, however show no differences in lean mass
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behavior/neurological
• reduction in mean weekly food intake when fed a high-fat diet
• lower feed efficiencies (weight gain per kilocalorie of food consumed)
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• significant decrease in locomotor activity, especially during the dark cycle, after 19 weeks on a high-fat diet
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