Sıçanlarda yüksek doz D vitamini'nin kaygı ve keşfi etkinlik davranışlarına etkisi

Vitamin D is a fat-soluble vitamin produced in the skin in reaction to exposure to sunshine. It is necessary for a variety of processes, including calcium and phosphate homeostasis, as well as neuromuscular and immunological function. Not many studies have been conducted to examine the relationship between anxiety, exploratory behaviour, and different doses of vitamin D. The current study aimed to evaluate the impact of different doses of vitamin D on anxiety-related behaviours in rats using the elevated plus-maze method and on exploratory behaviour and general activity of rats by using the open field test. In this study, 8 weeks old age 36 young male Wistar rats were used. They were divided into 3 groups as a sham group and two different doses of vitamin D groups. They were fed with feed containing 300 IU Vit D ad libitum. Sham group (Group 1) took normal water by gavage (n=12). The vitamin D group (Group 2) took 400IU vitamin D, and the last group (Group 3) took 1000IU vitamin D (n=12). The drugs were given once a day for 8 weeks to the groups by gavage. After 8 weeks, the rats were tested in the elevated plus-maze and open field tests. In the open field, spent time in the central area (STC) values of Group 2 (p<0.02) and Group 3 (p<0.05) were found to be much higher than Group 1. While the STC value of Group 3 was the lowest, the STP value was nearly the same in Group 2 and Group 3. The number of rearing was the highest in Group 2. When the elevated plus-maze test evaluated, there were no statistical differences between groups for the spent time in the closed arm (STCA) and spent time in the open arm (STOA), but in Group 2, STCA value was the lowest and STOA value was the highest from other groups. Entry number of closed arms (ECA) value was statistically higher in Group 2 than Group 3 (p=0.05). Our findings showed that 400IU and 1000IU doses of vitamin D exhibited anxiogenic effects, with no significant difference between the two groups. As a result, an increase in vitamin D supplementation causes an increase in anxiety.