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Obesity is a complex condition that is influenced by genetic and environmental factors and is associated with an increased risk for diabetes, hypertension, and cardiovascular diseases. Angiotensin-converting enzyme (ACE) is well characterized in the control of blood pressure. This study investigated whether the ACE insertion/deletion (I/D) polymorphism affects obesity in relation to sodium intake...
The effects of anorexia induced by early tumor, and anorexia induced by total parenteral nutrition (TPN) on food intake and the indexes of food intake, were investigated in rats infused with saline after jugular catheter placement and concomitant inoculation with methylcholanthrene (MCA)-induced tumor cells on day 0, and in rats without catheters receiving tumor only. Tumor became palpable around...
Effects of operative stress on food intake, meal size, and meal number were measured in 15 female rats before and after jugular vein catheterization. All rats had 5-d estrous cycles which correlated with cyclical feeding patterns that were most prominent during dark phase eating. In proestrous, meal number peaked (30.3 +/- 1.32), and meal size reached a nadir (0.33 +/- 0.02 g) with some corresponding...
During tumor growth, anorexia and reduced food intake are among the major causes leading to malnutrition and eventually cachexia, which negatively affect patients' outcome. Consistent evidence from our laboratories in rats and humans indicates a key role for ventromedial hypothalamic (VMH) serotonergic system in the development of cancer anorexia. Thus, we postulated that during cancer, increased...
The objective of this review is to present and discuss the current and the possible future perspectives of artificial nutrition in preventing and treating cancer cachexia. English-language studies published in the last 25 years were retrieved using MEDLINE, bibliographies and consultation with experts. MEDLINE search terms included cancer, malnutrition, and nutritional support. In vivo...
Our long-term objectives continue to be elucidation of the mechanisms that control spontaneous food intake (SFI), so that we may utilize this information in seeking ways to ameliorate abnormalities of SFI that occur in nutritionally ill humans. To this end, we have developed and used an Automated Computerized Rat Eater Meter (ACREM), which allows detailed determinations of food intake and feeding...
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