CHANGE OF ASTROCYTES NUMBER IN CA2 SUBFIELD OF HIPPOCAMPUS AFTER SPATIAL LEARNING

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JAHANSHAHI M.; SADEGHI Y.; HOSSEINI A.; NAGHDI N.

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Journal: Armaghane Danesh Year:2007 | Volume:12 | Issue:1 (45) Page(s): 39-48

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Title

CHANGE OF ASTROCYTES NUMBER IN CA2 SUBFIELD OF HIPPOCAMPUS AFTER SPATIAL LEARNING

Author(s)

JAHANSHAHI M. | SADEGHI Y. | HOSSEINI A. | NAGHDI N. | Issue Writer Certificate

Keywords

HIPPOCAMPUSQ2

CA2Q3

ASTROCYTESQ2

SPATIAL LEARNINGQ3

PTAH STAININGQ3

Abstract

Introduction & Objective: The hippocampal formation is a part of limbic system that plays an important role in memory and learning.The HIPPOCAMPUS is divided into three subfields: CA1, CA2 and CA3. In addition to pyramidal neurons and interneurons, the ASTROCYTES play important roles in HIPPOCAMPUS, probably in memory and learning. In fact, learning needs some instruments for information storage and information maintenance mechanisms like memory. On the other hand, memory is always accompanied with learning. This study was conducted to evaluate the changes in number of ASTROCYTES in CA2 subfield of HIPPOCAMPUS in rats due to SPATIAL LEARNING.Materials & Methods: In this experimental study, with the use of Morris Water Maze and two other techniques (Reference and Working memory methods) in the behavioral laboratory of physiology department of Pasteur institute, 15 male Wistar rats were used. Five rats were included in control group and 10 rats in the other two groups (each 5 rat). After performing the educational experiments, animal brain was removed and after histological processing, the slides were stained with PTAH to show the ASTROCYTES. The obtained data were analyzed by SPSS, using T test and variance analysis.Results: The results showed a significant difference in ASTROCYTES number of CA2 area between control and reference memory group. Also the difference between control and working memory groups was significant. Comparing the two educated groups, a significant difference was found in the number of ASTROCYTES in those groups.Conclusion: The number of ASTROCYTES in CA2 area of HIPPOCAMPUS of rats increased due to SPATIAL LEARNING.

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APA: Copy

JAHANSHAHI, M., SADEGHI, Y., HOSSEINI, A., & NAGHDI, N.. (2007). CHANGE OF ASTROCYTES NUMBER IN CA2 SUBFIELD OF HIPPOCAMPUS AFTER SPATIAL LEARNING. ARMAGHAN DANESH, 12(1 (45)), 39-48. SID. https://sid.ir/paper/77650/en

Vancouver: Copy

JAHANSHAHI M., SADEGHI Y., HOSSEINI A., NAGHDI N.. CHANGE OF ASTROCYTES NUMBER IN CA2 SUBFIELD OF HIPPOCAMPUS AFTER SPATIAL LEARNING. ARMAGHAN DANESH[Internet]. 2007;12(1 (45)):39-48. Available from: https://sid.ir/paper/77650/en

IEEE: Copy

M. JAHANSHAHI, Y. SADEGHI, A. HOSSEINI, and N. NAGHDI, “CHANGE OF ASTROCYTES NUMBER IN CA2 SUBFIELD OF HIPPOCAMPUS AFTER SPATIAL LEARNING,” ARMAGHAN DANESH, vol. 12, no. 1 (45), pp. 39–48, 2007, [Online]. Available: https://sid.ir/paper/77650/en

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