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Information Journal Paper

Title

Sex Differences and Role of Gonadal Hormones on Glutamate Level After Spinal Cord Injury in Rats: A Microdialysis Study

Pages

  225-234

Abstract

 Introduction: Sex differences in outcomes of Spinal Cord Injury (SCI) suggest a sexhormone-mediated effect on post-SCI pathological events, including Glutamate excitotoxicity. This study aimed to investigate the importance of gonadal hormones on Glutamate release subsequent to SCI in rats. Methods: After laminectomy at T8-T9, an electrolytic lesion was applied to the spinothalamic tracts of male and female rats. Using spinal Microdialysis, we assessed Glutamate levels at the site of lesion in both intact and gonadectomized rats for 4 hours. In this way, we examined the sex differences in the Glutamate concentrations. Results: The peak retention time of Glutamate level was 10. 6 min and spinal Glutamate concentration reached a maximum level 40 min following SCI. In male SCI rats, gonadectomy caused a significant elevation of Glutamate level (P<0. 001) following injury which was maximum 40 min post-SCI as well. However, no significant alterations were seen in gonadectomized female rats. Conclusion: The significant differences in Glutamate levels between both intact and gonadectomized SCI male and female rats show the sex-hormone-related mechanisms underlying the molecular events in the second phase of SCI. It seems that the role of male gonadal hormones to prevent Glutamate excitotoxicity is more prominent. The exact mechanisms of these hormones on the functional recovery after SCI should be clarified in further studies.

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    APA: Copy

    Samandari, Razieh, HASSANPOUR EZATTI, MAJID, FAKHRI, SAJAD, ABBASZADEH, FATEMEH, & JORJANI, MASOUMEH. (2019). Sex Differences and Role of Gonadal Hormones on Glutamate Level After Spinal Cord Injury in Rats: A Microdialysis Study. BASIC AND CLINICAL NEUROSCIENCE, 10(3), 225-234. SID. https://sid.ir/paper/327945/en

    Vancouver: Copy

    Samandari Razieh, HASSANPOUR EZATTI MAJID, FAKHRI SAJAD, ABBASZADEH FATEMEH, JORJANI MASOUMEH. Sex Differences and Role of Gonadal Hormones on Glutamate Level After Spinal Cord Injury in Rats: A Microdialysis Study. BASIC AND CLINICAL NEUROSCIENCE[Internet]. 2019;10(3):225-234. Available from: https://sid.ir/paper/327945/en

    IEEE: Copy

    Razieh Samandari, MAJID HASSANPOUR EZATTI, SAJAD FAKHRI, FATEMEH ABBASZADEH, and MASOUMEH JORJANI, “Sex Differences and Role of Gonadal Hormones on Glutamate Level After Spinal Cord Injury in Rats: A Microdialysis Study,” BASIC AND CLINICAL NEUROSCIENCE, vol. 10, no. 3, pp. 225–234, 2019, [Online]. Available: https://sid.ir/paper/327945/en

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