article information

Journal of Kermanshah University of Medical Sciences: Vol.13, issue 1; e79823
published online: June 19, 2009
article type: Research Article
received: January 13, 2009
accepted: March 10, 2009

Morphological changes in hippocampus CA1 neurons after nicotine administration in rats

authors:

avatar Sirous Jalili 1 , avatar Yousef Sadeghi 2 , avatar Hedayat Sahraei 2 , *

Dept. of Anatomy, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
Applied Neuroscience Research Center, Baqyiatallah University of Medical Sciences, Tehran, Iran

how to cite: Jalili S, Sadeghi Y, Sahraei H. Morphological changes in hippocampus CA1 neurons after nicotine administration in rats. J Kermanshah Univ Med Sci. 2009;13(1):e79823. 

Abstract

Background: Previous studies have shown morphological changes after intra peritoneal drug administration in human and animals. This study examines the effect of intrapretoneal nicotine administration on pyramidal neurons in area CA1of hippocampus.
Methods: The study included male Wistar rats with the mean weigh of 220-250 g. Nicotine was administered at a dose of 0.4 and 1.5 mg/kg, each for a period of three days. The animals were then anesthetized using ketamine (70 mg/kg). After being fixed through transcardiac canula with formalin 4% and bafer phosphate 6, the brains were sectioned and stained using Golgi’s staining technique. Using MOTIC software, they were then examined for histological evaluations. Data were analyzed using unpaired ttest
Results: Our results showed a decrease in the size and the number of pyramidal cells in area CA1 of hippocampus for the nicotine group. While the number of dendrites was fewer in experimental group, asterocytes had increased in comparison to the control group.
Conclusion: Our study indicates that nicotine administration results in a significant reduction in the size of pyramidal cells in area CA1of hippocampus.

Fulltext

References

  • 1.

    The references of this article is available on PDF.