THE EFFECT OF INTRA HIPPOCAMPAL INJECTIONS OF DIHYDROTESTOSTERONE ON SPATIAL MEMORY IN INTACT MALE RATS

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BABRI SH.; GHOTBI R.; MOTAMEDI F.; RAZAVI MOVAHED S.

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Journal: PHARMACEUTICAL SCIENCES Year:2009 | Volume:15 | Issue:2 Page(s): 143-150

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Title

THE EFFECT OF INTRA HIPPOCAMPAL INJECTIONS OF DIHYDROTESTOSTERONE ON SPATIAL MEMORY IN INTACT MALE RATS

Author(s)

BABRI SH. | GHOTBI R. | MOTAMEDI F. | RAZAVI MOVAHED S. | Issue Writer Certificate

Keywords

DIHYDROTESTOSTERONEQ1

ACQUISITIONQ1

RETRIEVALQ1

5-ALPHA REDUCTASEQ2

MORRIS WATER MAZEQ2

Abstract

Objective: DIHYDROTESTOSTERONE (DHT) is an endogenous hormone that is derived from testosterone in an enzymatic reaction mediated by 5-ALPHA REDUCTASE. The high density of androgen receptors and 5-ALPHA REDUCTASE enzyme have been found in the centers of learning and memory in hippocampus ,and improvement in learning and memory followed by administration of DHT to gondectomized male rats indicates androgens role in learning and memory. Methods: 80 male rats randomly divided into ten equal groups. Two Canules were implanted in CA1 of animals in all groups except control. After 1 week the experiments were started. Control group tested in MORRIS WATER MAZE. One group received 0.5 ml saline 30 min and two other groups received 0.5 ml DMSO 30 min and 24 hour before tests intrahippocampaly. Doses of 5, 10, 20 Microgram DHT were solved in 0.5 ml DMSO and in three groups were injected in CA1 30 min before test and in the other three groups 24 hours before it. Results: Our results showed that injection of DHT different doses 24 hours before tests had no meaningful effects on learning and memory RETRIEVAL in MORRIS WATER MAZE but injection of 10 mg of it, 30 min before tests decreased swimming path significantly (p<0.05) and increased traveled distance percent in target quadrant (p<0.05). Conclusion: Results showed that DHT in dose of 10 microgram can improve ACQUISITION and RETRIEVAL in intact male rats.

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APA: Copy

BABRI, SH., GHOTBI, R., MOTAMEDI, F., & RAZAVI MOVAHED, S.. (2009). THE EFFECT OF INTRA HIPPOCAMPAL INJECTIONS OF DIHYDROTESTOSTERONE ON SPATIAL MEMORY IN INTACT MALE RATS. PHARMACEUTICAL SCIENCES, 15(2), 143-150. SID. https://sid.ir/paper/48590/en

Vancouver: Copy

BABRI SH., GHOTBI R., MOTAMEDI F., RAZAVI MOVAHED S.. THE EFFECT OF INTRA HIPPOCAMPAL INJECTIONS OF DIHYDROTESTOSTERONE ON SPATIAL MEMORY IN INTACT MALE RATS. PHARMACEUTICAL SCIENCES[Internet]. 2009;15(2):143-150. Available from: https://sid.ir/paper/48590/en

IEEE: Copy

SH. BABRI, R. GHOTBI, F. MOTAMEDI, and S. RAZAVI MOVAHED, “THE EFFECT OF INTRA HIPPOCAMPAL INJECTIONS OF DIHYDROTESTOSTERONE ON SPATIAL MEMORY IN INTACT MALE RATS,” PHARMACEUTICAL SCIENCES, vol. 15, no. 2, pp. 143–150, 2009, [Online]. Available: https://sid.ir/paper/48590/en

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