The effect of Nigella sativa on learning and memory in male diabetic rats

Abstract   Introduction: Diabetes mellitus accompanies with disturbances in learning, memory, and cognitive skills in the human society and experimental animals. Considering the beneficial antidiabetic potential of Nigella sativum (NS ), this research study was conducted to evaluate the effect of ch...

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Main Authors: Mohammad reza Jalali nodoushan, Mehrdad Roghani
Format: Article
Language:English
Published: Iran University of Medical Sciences 2009-01-01
Series:Basic and Clinical Neuroscience
Subjects:
Online Access:http://bcn.iums.ac.ir/browse.php?a_code=A-10-1-8&slc_lang=en&sid=1
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author Mohammad reza Jalali nodoushan
Mehrdad Roghani
author_facet Mohammad reza Jalali nodoushan
Mehrdad Roghani
author_sort Mohammad reza Jalali nodoushan
collection DOAJ
description Abstract   Introduction: Diabetes mellitus accompanies with disturbances in learning, memory, and cognitive skills in the human society and experimental animals. Considering the beneficial antidiabetic potential of Nigella sativum (NS ), this research study was conducted to evaluate the effect of chronic consumption of NS on learning and memory in diabetic rats using passive avoidance and Y-maze tests. Methods: Male Wistar rats were randomly divided into control, NS-treated control, diabetic, and NS-treated diabetic groups. NS treatment continued for 1 month. For induction of diabetes, streptozotocin was injected i.p. at a single dose of 60 mg/kg. For evaluation of learning and memory, initial latency (IL) and step-through latency (STL) were determined at the end of study using passive avoidance test. Meanwhile, alternation behavior percentage was determined using Y maze. Results: There was a significant increase (p<0.05) in IL in diabetic and NS-treated diabetic groups after 4 weeks as compared to control group. In this respect, there was no significant difference between diabetic and NS-treated diabetic groups. On the other hand, STL significantly decreased (p<0.05) in diabetic group and significantly increased (p<0.01) in NS-treated diabetic group as compared to control group at the end of study. In addition, results of Y-maze test showed that there is a significant difference between diabetic and NS-treated diabetic groups (p<0.05) regarding alternation behavior. Discussion: In summary, chronic oral administration of NS could enhance the consolidation and recall capability of stored information and spatial memory in diabetic animals.
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spelling doaj.art-370a1e5ec267455482537333b7418ba12024-03-02T16:44:44ZengIran University of Medical SciencesBasic and Clinical Neuroscience2008-126X2228-74422009-01-01113234The effect of Nigella sativa on learning and memory in male diabetic ratsMohammad reza Jalali nodoushan0Mehrdad Roghani1 Abstract   Introduction: Diabetes mellitus accompanies with disturbances in learning, memory, and cognitive skills in the human society and experimental animals. Considering the beneficial antidiabetic potential of Nigella sativum (NS ), this research study was conducted to evaluate the effect of chronic consumption of NS on learning and memory in diabetic rats using passive avoidance and Y-maze tests. Methods: Male Wistar rats were randomly divided into control, NS-treated control, diabetic, and NS-treated diabetic groups. NS treatment continued for 1 month. For induction of diabetes, streptozotocin was injected i.p. at a single dose of 60 mg/kg. For evaluation of learning and memory, initial latency (IL) and step-through latency (STL) were determined at the end of study using passive avoidance test. Meanwhile, alternation behavior percentage was determined using Y maze. Results: There was a significant increase (p<0.05) in IL in diabetic and NS-treated diabetic groups after 4 weeks as compared to control group. In this respect, there was no significant difference between diabetic and NS-treated diabetic groups. On the other hand, STL significantly decreased (p<0.05) in diabetic group and significantly increased (p<0.01) in NS-treated diabetic group as compared to control group at the end of study. In addition, results of Y-maze test showed that there is a significant difference between diabetic and NS-treated diabetic groups (p<0.05) regarding alternation behavior. Discussion: In summary, chronic oral administration of NS could enhance the consolidation and recall capability of stored information and spatial memory in diabetic animals.http://bcn.iums.ac.ir/browse.php?a_code=A-10-1-8&slc_lang=en&sid=1Nigella sativum Learning Memory Diabetes Mellitus
spellingShingle Mohammad reza Jalali nodoushan
Mehrdad Roghani
The effect of Nigella sativa on learning and memory in male diabetic rats
Basic and Clinical Neuroscience
Nigella sativum
Learning
Memory
Diabetes Mellitus
title The effect of Nigella sativa on learning and memory in male diabetic rats
title_full The effect of Nigella sativa on learning and memory in male diabetic rats
title_fullStr The effect of Nigella sativa on learning and memory in male diabetic rats
title_full_unstemmed The effect of Nigella sativa on learning and memory in male diabetic rats
title_short The effect of Nigella sativa on learning and memory in male diabetic rats
title_sort effect of nigella sativa on learning and memory in male diabetic rats
topic Nigella sativum
Learning
Memory
Diabetes Mellitus
url http://bcn.iums.ac.ir/browse.php?a_code=A-10-1-8&slc_lang=en&sid=1
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