Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 22, Issue 21, Pages -Publisher
MDPI
DOI: 10.3390/ijms222111695
Keywords
stress; appetite; ghrelin; sex differences; aging
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Stress plays a significant role in affecting appetite by modulating peptides involved in appetite regulation. The orexigenic peptide ghrelin is known to be crucial in appetite abnormalities in various diseases and psychological states. Studies have also shown the impact of sex differences and age on appetite under stress.
Stress, a factor that affects appetite in our daily lives, enhances or suppresses appetite and changes palatability. However, so far, the mechanisms underlying the link between stress and eating have not been fully elucidated. Among the peripherally produced appetite-related peptides, ghrelin is the only orexigenic peptide, and abnormalities in the dynamics and reactivity of this peptide are involved in appetite abnormalities in various diseases and psychological states. This review presents an overview of the research results of studies evaluating the effects of various stresses on appetite. The first half of this review describes the relationship between appetite and stress, and the second half describes the relationship between the appetite-promoting peptide ghrelin and stress. The effects of sex differences and aging under stress on appetite are also described.
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