Effects of chronic stress on cognitive functions and anxiety related behaviors in rats
2010
The effects of 100 dB prenatal and chronic postnatal white noise stress (WNS) on some cognitive functions and behaviors in rats were investigated. For this purpose, 60 female Sprague-Dawley rats and their 90 male offspring were used. Pregnant rats were divided into Prenatal Stress (PS) and Prenatal Control (PC) groups. WNS was applied to PS group between the 14 th and 21 st days of their pregnancy, while PC rats were left undisturbed. After weaning, 40 male pups of PS dams were assigned to prenatal + chronic postnatal stress (PSCS) and prenatal stress + non-stress (PSN) groups. Pups of PC dams were divided into Control (CON) and Corticosterone (CORT) groups. During the postnatal 30 th and 51 st days, WNS was applied to PSCS and CORT rats everyday for 45 minutes, while PSN and CON groups were left undisturbed. The effects of stress on adult male offspring were investigated using Morris water maze and defensive withdrawal tests. Blood samples were collected after each test for serum corticosterone measureme...
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