• WordNet 3.6
    • n ghrelin a gastrointestinal hormone produced by epithelial cells lining the fundus of the stomach; appears to be a stimulant for appetite and feeding, but is also a strong stimulant of growth hormone secretion from the anterior pituitary
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In news:

Ghrelin is a hormone secreted by the gut to boost appetite.
Analysis of these characteristics identified a set of patterns, including reduced insulin sensitivity, increases in ghrelin, and decreases in leptin among partially sleep-deprived individuals.
Changes in ghrelin and leptin influenced energy intake among the study populations.
Researchers found higher levels of the hunger hormone ghrelin in volunteers who were sleep deprived .
Rivera said being too tired to exercise and a hunger fueled by excess ghrelin is a bad combination.
Total weight loss was about 6.5 pounds in both cases, but when the participants got less sleep , they lost less fat mass (1.3 pounds versus 3 pounds), were hungrier, and had higher levels of the appetite-stimulating hormone ghrelin.

In science:

Another, GPR39, is a member of the ghrelin receptor family, and ghrelin has been previously associated with hypertension (Puig et al. 2010).
An efficient group test for genetic markers that handles confounding
Continuous antagonism of the ghrelin receptor results in early induction of salt-sensitive hypertension.
An efficient group test for genetic markers that handles confounding