title: Age-related changes in the total protein in the brain of Periplaneta americana (L.).
abstract: Quantitative changes in the total protein in the brain of aging male and female Periplaneta americana have been observed. A significant increase of total protein and neurosecretory cells in the brain up to 5 months, followed by a considerable decline in later age, points to a direct relationship between the neurosecretory cell number and reproductive phenomenon. Higher total protein concentration and cell number maintain reproduction up to 5 months while a decline after 6 months of adult life adversely affects reproduction. This suggests that neurosecretory cell number and protein concentration are related to reproduction and thereby aging.
mesh_terms: D000375:Aging; D000818:Animals; D001921:Brain / Q000166:cytology / Q000502:physiology*; D001923:Brain Chemistry; D003058:Cockroaches / Q000502:physiology*; D005260:Female; D008297:Male; D009490:Neurosecretory Systems / Q000032:analysis / Q000166:cytology / Q000502:physiology; D010526:Periplaneta / Q000502:physiology*; D011506:Proteins / Q000032:analysis / Q000502:physiology*; D012098:Reproduction
chemical_list: D011506:Proteins