Daily variation in melatonin level, antioxidant activity and general immune response of peripheral blood mononuclear cells and lymphoid tissues of Indian goat Capra hircus during summer and winter.

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dc.contributor.authorSingh, Amaresh Kumar
dc.contributor.authorGhosh, Somenath
dc.contributor.authorBasu, Priyoneel
dc.contributor.authorHaldar, Chandana
dc.date.accessioned2014-12-10T11:13:37Z
dc.date.available2014-12-10T11:13:37Z
dc.date.issued2014-05
dc.description.abstractDaily variation in circulatory melatonin level, during different seasons, has been reported to influence immune system and free-radical scavenging capacity in mammals, including human beings. Similar studies have not been carried out on small ruminant viz. goats that are susceptible to opportunistic infections, increased oxidative load and sickness during free-grazing activity and frequent exposure to agro-chemicals. Therefore, daily variation in immune status, antioxidant enzyme activity and its possible correlation with circulatory melatonin level during two different seasons, summer (long day) and winter (short day) were studied in the Indian goat, Capra hircus. The clinically important immune parameters, such as total leukocyte count, % lymphocyte count and % stimulation ratio of T-lymphocytes presented a day/night rhythm prominently in the winter. The oxidative load in terms of malonedialdehyde was always low during night while antioxidant enzymes superoxide dismutase, catalase and total antioxidant status were high during nighttime (1800 to 0600 hrs). Interestingly, the studied parameters were significantly higher during the winter in both the sexes. Rhythmometric analyses showed prominent rhythmicity in above parameters. The data presented strong positive correlation between high levels of nighttime melatonin levels and immune parameters during winter. It suggests that melatonin possesses immunoenhacing as well as antioxidative property during winter. This might be a necessity for maintenance of physiological harmony in goats to protect them from winter stress.en_US
dc.identifier.citationSingh Amaresh Kumar, Ghosh Somenath, Basu Priyoneel, Haldar Chandana. Daily variation in melatonin level, antioxidant activity and general immune response of peripheral blood mononuclear cells and lymphoid tissues of Indian goat Capra hircus during summer and winter. Indian Journal of Experimental Biology. 2014 May; 52(5): 467-477.en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/153722
dc.language.isoenen_US
dc.source.urihttps://nopr.niscair.res.in/handle/123456789/28672en_US
dc.subjectAntioxidant activityen_US
dc.subjectDaily rhythmen_US
dc.subjectGoaten_US
dc.subjectImmune statusen_US
dc.subjectMelatoninen_US
dc.titleDaily variation in melatonin level, antioxidant activity and general immune response of peripheral blood mononuclear cells and lymphoid tissues of Indian goat Capra hircus during summer and winter.en_US
dc.typeArticleen_US
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