Rodent models for sleep restriction have good face validity when examining food intake and related regulatory metabolic hormones. However, in contrast to epidemiological studies in which sleep restriction is associated with body weight gain, sleep-restricted rats show a decrease in body weight. This difference with the human situation might be caused by the alternation between periods of sleep ...

Unlike calorie restriction, exercise fails to extend maximum life span, but the mechanisms that explain this disparate effect are unknown. We used a 24-wk protocol of treadmill running, weight matching, and pair feeding to compare the effects of exercise and calorie restriction on biomarkers related to aging. This study consisted of young controls, an ad libitum-fed sedentary group, two groups ...

Background: Obesity is one of the cardiovascular disease risk factors that cause hypertrophy or hyperplasia adipocytes. Changes in fat cells have potential to increase inflammation and insulin resistance. Objective: This study aims determine effects high glucose, egg yolk consumption, calorie restriction, air pollution on body weight, cell size, tissue weight rats. Methods: The type experimenta...

The central melanocortin system is conserved across vertebrates. However, in birds, little is known about how energy balance influences orexigenic agouti-related protein (AGRP) and anorexigenic pro-opiomelanocortin (POMC) expression, despite the fact that commercial food restriction is critical to the efficient production of poultry meat. To enable contrasts to be made, in broiler-breeder chick...

Small size at birth has been associated with an increased risk of central obesity and reduced lean body mass in adult life. This study investigated the time of onset of prenatally induced obesity, which occurs after maternal feed restriction, in the guinea pig, a species that, like the human, develops substantial adipose tissue stores before birth. We examined the effect of maternal feed restri...

Long term studies indicate that the majority of humans regain the weight lost during weight reduction programs. In dogs, while some information is available regarding weight loss programs, no data have been published regarding the ability to maintain lower weight following weight loss. The objectives of this study were to determine the ability of dogs to maintain weight loss following a weight ...

The present study evaluated the effect of different levels of energy restriction on metabolic parameters in obese ponies. Relative weight changes, markers of lipid metabolism and oxidant/antioxidant balance were monitored. A total of eighteen obese (body condition score ≥ 7/9) Shetland ponies were studied over a 23·5-week trial, which was divided into three periods. The first period involved a ...

The aim of the study was to compare effects feed restriction on growth performance and carcass composition chicken, rabbit nutria males females. Feed applied at a rate 70% ad libitum from 14 21 days age in chickens, 42 49 rabbits, 12 15 weeks nutrias. Animals were fed prior following restriction. Carcass evaluated common slaughter ages, i.e., 31 70 eight months results showed stronger restricti...