TY  - JOUR
AB  - Changes in day length enhance or suppress component of immune function in individuals of several species. The purpose of the present experiment was to study the role of photoperiodic manipulation on the nitric oxide production by splenic macrophages in the fresh-water snake, Natrix piscator. To study effect of photoperiod, animals were subjected to 24 hour continuous light and continuous dark for 30 days. Animals kept in natural day length served as control. At termination of experiments, animals were sacrificed, and spleen was excised. Macrophages were incubated for 24 hours and nitric oxide production was measured by measuring the nitrite concentration. Nitrite production was significantly decreased to the cultures obtained from the animals kept under continuous light. No change in nitrite concentration was found in animals kept under continuous dark, when compared to the animals kept under natural day length. The possible role of decreased melatonin synthesis in light is suggested to decrease the nitric oxide production.
AU  - Tripathi, M. K.
AU  - Singh, R.
ET  - 2012
KW  - nitric oxide
photoperiod
snake
splenic macrophage
M1  - 2
M3  - ORIGINAL ARTICLE
PY  - 2012
SN  - 1997-0838
SP  - 145-151
ST  - Photoperiodic stress on nitrite production by splenic macrophages in fresh-water snake Natrix piscator
T2  - Journal of Stress Physiology & Biochemistry
TI  - Photoperiodic stress on nitrite production by splenic macrophages in fresh-water snake Natrix piscator
UR  - http://www.jspb.ru/issues/2012/N2/JSPB_2012_2_145-151.pdf
VL  - 8
ID  - 264
ER  -