Article Publish Status: FREE
Abstract Title:

Proteins Alleviate Pentylenetetrazol-Induced Seizures in Zebrafish.

Abstract Source:

Biomedicines. 2020 Jul 2 ;8(7). Epub 2020 Jul 2. PMID: 32630817

Abstract Author(s):

Yin-Sir Chung, Brandon Kar Meng Choo, Pervaiz Khalid Ahmed, Iekhsan Othman, Mohd Farooq Shaikh

Article Affiliation:

Yin-Sir Chung


The anticonvulsive potential of proteins extracted fromleaves (OSLP) has never been elucidated in zebrafish (). This study thus aims to elucidate the anticonvulsive potential of OSLP in pentylenetetrazol (PTZ)-induced seizure model. Physical changes (seizure score and seizure onset time, behavior, locomotor) and neurotransmitter analysis were elucidated to assess the pharmacological activity. The protective mechanism of OSLP on brain was also studied using mass spectrometry-based label-free proteomic quantification (LFQ) and bioinformatics. OSLP was found to be safe up to 800µg/kg and pre-treatment with OSLP (800 µg/kg, i.p., 30 min) decreased the frequency of convulsive activities (lower seizure score and prolonged seizure onset time), improved locomotor behaviors (reduced erratic swimming movements and bottom-dwelling habit), and lowered the excitatory neurotransmitter (glutamate). Pre-treatment with OSLP increased protein Complexin 2 (Cplx 2) expression in the zebrafish brain. Cplx2 is an important regulator in the trans-SNARE complex which is required during the vesicle priming phase in the calcium-dependent synaptic vesicle exocytosis. Findings in this study collectively suggests that OSLP could be regulating the release of neurotransmitters via calcium-dependent synaptic vesicle exocytosis mediated by the"Synaptic Vesicle Cycle"pathway. OSLP's anticonvulsive actions could be acting differently from diazepam (DZP) and with that, it might not produce the similar cognitive insults such as DZP.

Study Type : Animal Study

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