Diurnal variation of nuclear volumes and the mitotic index of cells in the adrenal zona glomerulosa of rats.
In adult male Wistar rats (200-230 g), nuclear volumes of cells in the adrenal zona glomerulosa exhibit diurnal variation with the peak values at 12 p.m.-3 a.m. and the nadir value at 12 a.m. Diurnal variation of the mitotic index is characterized by high values from 9 a.m. to 6 p.m. and low values from 12 p.m. to 6 a.m.
Kirillov
O T
OT
Institute of Marine Biology, Far East Branch, Academy of Sciences of U.S.S.R., Vladivostok.
D000818:Animals; D002467:Cell Nucleus / Q000502:physiology*; D002940:Circadian Rhythm / Q000502:physiology*; D008297:Male; D008940:Mitotic Index; D051381:Rats; D011919:Rats, Inbred Strains; D015384:Zona Glomerulosa / Q000502:physiology*