Neurotoxicology · 2024
Vitamin D attenuates monosodium glutamate-induced behavioural anomalies, metabolic dysregulation, cholinergic impairment, oxidative stress, and astrogliosis in rats.
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Gbadamosi Ismail, Yawson Emmanuel Olusola, Akesinro Justice, Adeleke Opeyemi, Tokunbo Olorunfemi, Bamisi Olawande, Ibrahim-Abdulkareem Rukayat, Awoniran Paul, Gbadamosi Rukayat, Lambe Ezra, Atoyebi Aminat, Bayo-Olugbami Adedamola Aminat, Abayomi Taiwo Adekemi, Arogundade Tolulope Timothy
Аннотация
BACKGROUND: Monosodium glutamate (MSG) is a commonly used flavor enhancer that has raised concerns due to its potential adverse effects on various organs. This study explored the neuroprotective potential of Vitamin D, a beneficial micronutrient, in mitigating MSG-induced neurotoxicity.
MATERIALS AND METHODS: Adult male Wistar rats were categorized into five groups: control (2 ml/kg PBS orally for 30 days), MSG (40 mg/kg orally for 30 days), VIT-D (oral cholecalciferol; 500 IU/kg for 30 days), MSG+VIT-D (MSG for 30 days followed by VIT-D for another 30 days), and VIT-D/MSG (concurrent VIT-D and MSG for 30 days). The rats underwent neurobehavioral, histochemical, and biochemical analyses following the treatments.
RESULTS: MSG treatment caused a decline in both long and short-term memory, along with reduced exploratory and anxiogenic behavior, mitigated by vitamin D treatment. MSG exposure also induced impaired behavior, dyslipidemia, oxidative stress, lipid peroxidation, altered cholinergic transmission, and increased chromatolysis and neuroinflammation in the frontal cortex, hippocampus, and cerebellum.
CONCLUSIONS: VIT-D demonstrated a mitigating effect on MSG-induced adverse outcomes, highlighting its potential to attenuate neurodegenerative cascades. This investigation contributes to understanding MSG-associated neurotoxicity and suggests vitamin D as a valuable and potential intervention for neuroprotection.
MATERIALS AND METHODS: Adult male Wistar rats were categorized into five groups: control (2 ml/kg PBS orally for 30 days), MSG (40 mg/kg orally for 30 days), VIT-D (oral cholecalciferol; 500 IU/kg for 30 days), MSG+VIT-D (MSG for 30 days followed by VIT-D for another 30 days), and VIT-D/MSG (concurrent VIT-D and MSG for 30 days). The rats underwent neurobehavioral, histochemical, and biochemical analyses following the treatments.
RESULTS: MSG treatment caused a decline in both long and short-term memory, along with reduced exploratory and anxiogenic behavior, mitigated by vitamin D treatment. MSG exposure also induced impaired behavior, dyslipidemia, oxidative stress, lipid peroxidation, altered cholinergic transmission, and increased chromatolysis and neuroinflammation in the frontal cortex, hippocampus, and cerebellum.
CONCLUSIONS: VIT-D demonstrated a mitigating effect on MSG-induced adverse outcomes, highlighting its potential to attenuate neurodegenerative cascades. This investigation contributes to understanding MSG-associated neurotoxicity and suggests vitamin D as a valuable and potential intervention for neuroprotection.