Lithium Modulates the Chronic Stress-Induced Effect on Blood Glucose Level of Male Rats
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In the present study we examined gross changes in the mass of whole adrenal glands and that of the adrenal cortex, as well as the serum corticosterone and glucose level of mature male Wistar rats subjected to three different treatments: animals subjected to chronic restraint-stress, animals injected with lithium (Li) and chronically stressed rats treated with Li. Under all three conditions we observed hypertrophy of whole adrenals, as well as the adrenal cortices. Chronic restraint stress, solely or in combination with Li treatment, significantly elevated the corticosterone level, but did not change the blood glucose level. Animals treated only with Li exhibited an elevated serum corticosterone level and blood glucose level. The aim of our study was to investigate the modulation of the chronic stress-induced effect on the blood glucose level by lithium, as a possible mechanism of avoiding the damage caused by chronic stress. Our results showed that lithium is an agent of choice which m...ay help to reduce stress-elevated corticosterone and replenish exhausted glucose storages in an organism.
Keywords:Wistar rats / lithium / restraint stress / adrenal glands / corticosterone / glucose
Source:Archives of biological sciences, 2010, 62, 2, 289-295
- Ministry of Science and Technological Development of the Republic of Serbia [143044B]