Physiological and Biochemical Markers of the Gender-specific Sensitivity to Epileptogenic Factors, Delayed Consequences of Seizures and Their Response to Vitamins B1 and B6 in a Rat Model of Epilepsy

Vasily A. Aleshin; Anastasia V. Graf; Artem V. Artiukhov; Alexandra I. Boyko; Alexander L. Ksenofontov; Maria V. Maslova; Isabel Nogués; Martino L. di Salvo; Victoria I. Bunik

doi:10.20944/preprints202105.0034.v1

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preprints.org > biology and life sciences > biochemistry and molecular biology > doi: 10.20944/preprints202105.0034.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Physiological and Biochemical Markers of the Gender-specific Sensitivity to Epileptogenic Factors, Delayed Consequences of Seizures and Their Response to Vitamins B1 and B6 in a Rat Model of Epilepsy

Alexander L. Ksenofontov

Version 1 : Received: 1 May 2021 / Approved: 5 May 2021 / Online: 5 May 2021 (11:10:42 CEST)

How to cite: Aleshin, V.A.; Graf, A.V.; Artiukhov, A.V.; Boyko, A.I.; Ksenofontov, A.L.; Maslova, M.V.; Nogués, I.; di Salvo, M.L.; Bunik, V.I. Physiological and Biochemical Markers of the Gender-specific Sensitivity to Epileptogenic Factors, Delayed Consequences of Seizures and Their Response to Vitamins B1 and B6 in a Rat Model of Epilepsy. Preprints.org 2021, 2021050034. https://doi.org/10.20944/preprints202105.0034.v1. Aleshin, V.A.; Graf, A.V.; Artiukhov, A.V.; Boyko, A.I.; Ksenofontov, A.L.; Maslova, M.V.; Nogués, I.; di Salvo, M.L.; Bunik, V.I. Physiological and Biochemical Markers of the Gender-specific Sensitivity to Epileptogenic Factors, Delayed Consequences of Seizures and Their Response to Vitamins B1 and B6 in a Rat Model of Epilepsy. Preprints.org 2021, 2021050034. https://doi.org/10.20944/preprints202105.0034.v1.

Cite as:

Aleshin, V.A.; Graf, A.V.; Artiukhov, A.V.; Boyko, A.I.; Ksenofontov, A.L.; Maslova, M.V.; Nogués, I.; di Salvo, M.L.; Bunik, V.I. Physiological and Biochemical Markers of the Gender-specific Sensitivity to Epileptogenic Factors, Delayed Consequences of Seizures and Their Response to Vitamins B1 and B6 in a Rat Model of Epilepsy. Preprints.org 2021, 2021050034. https://doi.org/10.20944/preprints202105.0034.v1. Aleshin, V.A.; Graf, A.V.; Artiukhov, A.V.; Boyko, A.I.; Ksenofontov, A.L.; Maslova, M.V.; Nogués, I.; di Salvo, M.L.; Bunik, V.I. Physiological and Biochemical Markers of the Gender-specific Sensitivity to Epileptogenic Factors, Delayed Consequences of Seizures and Their Response to Vitamins B1 and B6 in a Rat Model of Epilepsy. Preprints.org 2021, 2021050034. https://doi.org/10.20944/preprints202105.0034.v1.

Abstract

Disturbed metabolism of vitamins B1 or B6, which are essential for neurotransmitters homeostasis, may cause epilepsy. Our study aims at revealing therapeutic potential of vitamins B1 and B6 in epilepsy by estimating effects of their combined administration on a seizure and its consequences in rats subjected to pentylenetetrazole (PTZ). The PTZ dose dependence of a seizure and its parameters according to Racine’s scale along with delayed physiological and biochemical consequences next day after the seizure are assessed regarding sexual dimorphism in epilepsy. PTZ sensitivity is stronger in the female than male rats. Next day after a seizure, gender differences in behavior and brain biochemistry arise. The induced gender differences in anxiety, exploratory and locomotor activity correspond to disappearance of gender differences in the brain GABA, aspartate, alanine and serine, with appearance of those in glutamate, glutamine and tyrosine. PTZ decreases the brain malate dehydrogenase activity, glutamine and urea in the males, and phenylalanine in the females. Administration of vitamins B1 and B6 24 h before PTZ delays a seizure in female rats only. This desensitization is not observed at short intervals (0.5-2 h) between the vitamins and PTZ administration. With the increasing interval, the pyridoxal kinase (PLK) activity in the female brain decreases, suggesting that the PLK downregulation by vitamins contributes to the desensitization. Delayed effects of vitamins and/or PTZ are mostly gender-specific and interacting. Our findings on the gender differences in sensitivity to epileptogenic factors, action of vitamins B1/B6 and associated biochemical events have medical implications.

Keywords

Amino Acid Neurotransmitter; Glutamate; Gaba; Pentylenetetrazole; Vitamin B1; Vitamin B6

Subject

Biology and Life Sciences, Biochemistry and Molecular Biology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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