Oral Administration of Ethanol Extract of Myristica fragrans Elicited Hyperactivity, Anxiety and Reduced Dopamine Level in Rats

Objective: Myristica fragrans, a common kitchen spice, is reported to have psychoactive properties, producing hallucinations and fear. The psychoactive action is attributed to the presence of myristicin. This study aimed to assess the effects of ethanol seed extract of Myristica fragrans (ESMF) on...

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Main Authors: SUNDAY Abba, SUNDAY ABRAHAM MUSA, Abel Agbon, SUNDAY OLADELE, IBRAHIM Joseph Momoh, ENYINNA OGBONNA, OLUSEGUN Dare Omotosho
Format: Article
Language:English
Published: Babcock Medical Society 2024-12-01
Series:Babcock University Medical Journal
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Online Access:http://bumj.babcock.edu.ng/index.php/bumj/article/view/399
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author SUNDAY Abba
SUNDAY ABRAHAM MUSA
Abel Agbon
SUNDAY OLADELE
IBRAHIM Joseph Momoh
ENYINNA OGBONNA
OLUSEGUN Dare Omotosho
author_facet SUNDAY Abba
SUNDAY ABRAHAM MUSA
Abel Agbon
SUNDAY OLADELE
IBRAHIM Joseph Momoh
ENYINNA OGBONNA
OLUSEGUN Dare Omotosho
author_sort SUNDAY Abba
collection DOAJ
description Objective: Myristica fragrans, a common kitchen spice, is reported to have psychoactive properties, producing hallucinations and fear. The psychoactive action is attributed to the presence of myristicin. This study aimed to assess the effects of ethanol seed extract of Myristica fragrans (ESMF) on anxiety-like behaviour and dopamine levels in rats. Materials and Methods: Thirty-six male Wistar rats were divided into six groups of six rats each. Groups I (control, received 2 ml/kg distilled water); Group II (received 2 ml/kg of tween 80 Oil); Groups III, IV and V received ESMF (500 mg/kg; 1000 mg/kg and 1500 mg/kg, respectively) and group VI received methylphenidate (1 mg/kg) as standard stimulant. All administration was done orally for 28 days. The rats were subjected to neurobehavioral tests: an open field test to assess hyperactivity and an elevated plus maze to assess anxiety-like behaviour. Brain samples were harvested and homogenized for neurochemical analysis of dopamine using a dopamine kit. Results: Hyperactivity was observed as increased line crossing and total distance travelled in the ESMF (500mg/kg)-treated group when compared with the control group and reduced anxiety-like behaviour by reduced frequent close arm entry and duration. Dopamine levels were reduced in the 1500 mg/kg ESMF-treated group compared to the control. Conclusion: Exposure to ethanol seed extract of Myristica fragrans elicited anxiety-like behaviour. ESMF at a dose of 500mg/kg possesses anxiolytic properties, while at a dose of 1500 mg/kg; elicits anxiety by a reduction in dopamine levels in rats.
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language English
publishDate 2024-12-01
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spelling doaj-art-8ba769197a93410c8396bb74c5f549ce2025-01-05T18:31:39ZengBabcock Medical SocietyBabcock University Medical Journal2465-66662756-46572024-12-017210.38029/babcockuniv.med.j..v7i2.399Oral Administration of Ethanol Extract of Myristica fragrans Elicited Hyperactivity, Anxiety and Reduced Dopamine Level in RatsSUNDAY Abba0SUNDAY ABRAHAM MUSA1Abel Agbon2SUNDAY OLADELE3IBRAHIM Joseph Momoh4ENYINNA OGBONNA5OLUSEGUN Dare Omotosho6Department of Human Anatomy, Prince Abubakar University, Anyigba, NigeriaNeuroanatomy and Neurosciences Research Unit, Department of Human Anatomy, Faculty of Basic Medical Sciences, College of Medical Sciences, Ahmadu Bello University (ABU), Zaria, NigeriaNeuroanatomy and Neurosciences Research Unit, Department of Human Anatomy, Faculty of Basic Medical Sciences, College of Medical Sciences, Ahmadu Bello University (ABU), Zaria, NigeriaDepartment of Veterinary Pathology, Faculty of Veterinary Medicine, ABU, Zaria, NigeriaDepartment of Human Physiology, Prince Abubakar University, Anyigba, NigeriaDepartment of Pharmacology, Prince Abubakar University, Anyigba, NigeriaDepartment of Human Anatomy, Prince Abubakar University, Anyigba, Nigeria Objective: Myristica fragrans, a common kitchen spice, is reported to have psychoactive properties, producing hallucinations and fear. The psychoactive action is attributed to the presence of myristicin. This study aimed to assess the effects of ethanol seed extract of Myristica fragrans (ESMF) on anxiety-like behaviour and dopamine levels in rats. Materials and Methods: Thirty-six male Wistar rats were divided into six groups of six rats each. Groups I (control, received 2 ml/kg distilled water); Group II (received 2 ml/kg of tween 80 Oil); Groups III, IV and V received ESMF (500 mg/kg; 1000 mg/kg and 1500 mg/kg, respectively) and group VI received methylphenidate (1 mg/kg) as standard stimulant. All administration was done orally for 28 days. The rats were subjected to neurobehavioral tests: an open field test to assess hyperactivity and an elevated plus maze to assess anxiety-like behaviour. Brain samples were harvested and homogenized for neurochemical analysis of dopamine using a dopamine kit. Results: Hyperactivity was observed as increased line crossing and total distance travelled in the ESMF (500mg/kg)-treated group when compared with the control group and reduced anxiety-like behaviour by reduced frequent close arm entry and duration. Dopamine levels were reduced in the 1500 mg/kg ESMF-treated group compared to the control. Conclusion: Exposure to ethanol seed extract of Myristica fragrans elicited anxiety-like behaviour. ESMF at a dose of 500mg/kg possesses anxiolytic properties, while at a dose of 1500 mg/kg; elicits anxiety by a reduction in dopamine levels in rats. http://bumj.babcock.edu.ng/index.php/bumj/article/view/399NutmegAlterationsMyristicinAnxietyStimulant
spellingShingle SUNDAY Abba
SUNDAY ABRAHAM MUSA
Abel Agbon
SUNDAY OLADELE
IBRAHIM Joseph Momoh
ENYINNA OGBONNA
OLUSEGUN Dare Omotosho
Oral Administration of Ethanol Extract of Myristica fragrans Elicited Hyperactivity, Anxiety and Reduced Dopamine Level in Rats
Babcock University Medical Journal
Nutmeg
Alterations
Myristicin
Anxiety
Stimulant
title Oral Administration of Ethanol Extract of Myristica fragrans Elicited Hyperactivity, Anxiety and Reduced Dopamine Level in Rats
title_full Oral Administration of Ethanol Extract of Myristica fragrans Elicited Hyperactivity, Anxiety and Reduced Dopamine Level in Rats
title_fullStr Oral Administration of Ethanol Extract of Myristica fragrans Elicited Hyperactivity, Anxiety and Reduced Dopamine Level in Rats
title_full_unstemmed Oral Administration of Ethanol Extract of Myristica fragrans Elicited Hyperactivity, Anxiety and Reduced Dopamine Level in Rats
title_short Oral Administration of Ethanol Extract of Myristica fragrans Elicited Hyperactivity, Anxiety and Reduced Dopamine Level in Rats
title_sort oral administration of ethanol extract of myristica fragrans elicited hyperactivity anxiety and reduced dopamine level in rats
topic Nutmeg
Alterations
Myristicin
Anxiety
Stimulant
url http://bumj.babcock.edu.ng/index.php/bumj/article/view/399
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