Morphological changes in hippocampus CA1 neurons after nicotine administration in rats

Sirous Jalili; Yousef Sadeghi; Hedayat Sahraei

Journal of Kermanshah University of Medical Sciences

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Morphological changes in hippocampus CA1 neurons after nicotine administration in rats

Author(s):

Sirous Jalili¹,

Yousef Sadeghi²,

Hedayat Sahraei^2,*

1Dept. of Anatomy, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran

2Applied Neuroscience Research Center, Baqyiatallah University of Medical Sciences, Tehran, Iran

Journal of Kermanshah University of Medical Sciences:Vol. 13, issue 1; e79823

Published online:Jun 19, 2009

Article type:Research Article

Received:Jan 13, 2009

Accepted:Mar 10, 2009

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. doi:

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.

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Author(s):

Sirous Jalili:[PubMed][Scholar]
Yousef Sadeghi:[PubMed][Scholar]
Hedayat Sahraei:[PubMed][Scholar]

Peer-reviewed Medical Quarterly

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Morphological changes in hippocampus CA1 neurons after nicotine administration in rats

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