418797

The Prophylactic Role of Amlodipine in Cerebral Ischemia via PGC1 α/Nrf2/TFAM Pathway Activation

Article

Last updated: 29 Mar 2025

Subjects

-

Tags

Neurophysiology

Abstract

Ischemic stroke is a leading cause of permanent disability and death. Mitochondrial dynamics is a novel target strategy for management of cerebral ischemia. Amlodipine was recently reported to target mitochondria in renal ischemia suggesting it as a possible mechanism in cerebral ischemia. 30 adult male rats were divided into 3 groups: 1-Sham-operated group: with no ischemia, received normal saline. 2-Ischemic Group: with Middle Cerebral Artery Occlusion (MCAO) model & 3-Amlodipine group: received Amlodipine (10 mg/kg) via gavage twice, 10 minutes before and 24 hours after developing MCAO model 72 hours after MCAO, rotarod test was performed. At the end of the experiment, serum oxidative DNA damage marker (8-hydroxy-2'-deoxyguanosine level) was assayed. Additionally, oxidative stress markers (Reactive Oxygen Species, malondialdehyde and superoxide dismutase), inflammatory marker (tumor necrosis factor-alpha), mitochondrial (Peroxisome proliferator-activated receptor gamma coactivator (PGC1α), Mitochondrial transcription factor A (TFAM)) levels were measured in brain tissue as well as the gene expression of nuclear factor erythroid 2-related factor 2 (NRF2). Histopathological and caspase-3 immunohistochemistry were also performed. Our results showed that amlodipine significantly protects against the ischemic brain injury as evident by the upregulation of the PGC1α/Nrf2/TFAM which restored normal mitochondrial function. Also, the ischemia-induced oxidative stress, inflammatory stress, oxidative DNA damage and apoptosis were mitigated by amlodipine with subsequent decrease of the neuronal damage. Accordingly, amlodipine use in protection against ischemic stroke is favored due to its mitochondrial targeting mechanism. Nonetheless, more research is needed to fully understand its additional effects.

DOI

10.21608/besps.2024.328491.1182

Keywords

amlodipine, Cerebral ischemia, PGC1α, Nrf2, TFAM

Authors

First Name

Yasmeen

Last Name

El-Harty

MiddleName

M.

Affiliation

Medical physiology department, Faculty of Medicine, Tanta University

Email

yassmin.elharty@med.tanta.edu.eg

City

-

Orcid

0000-0002-0648-2966

First Name

Rehab

Last Name

El-Gohary

MiddleName

M.

Affiliation

Department of Medical Biochemistry, Faculty of Medicine, Tanta University, Tanta 31527, Egypt

Email

rehab.elgohary@med.tanta.edu.eg

City

-

Orcid

-

First Name

Maram

Last Name

Ghabrial

MiddleName

mofreh Mahrous

Affiliation

Lecturer of anatomy and embryology, Faculty of Medicine, Tanta University,

Email

maram.mofreh@med.tanta.edu.eg

City

-

Orcid

-

First Name

Sameh

Last Name

El-Harty

MiddleName

M.

Affiliation

Department of Cardiovascular Medicine, Faculty of Medicine, Tanta University, Tanta 31527, Egypt

Email

sameh.elharty@med.tanta.edu.eg

City

-

Orcid

-

First Name

Alaa

Last Name

Elkordy

MiddleName

-

Affiliation

Neuropsychiatry department, Faculty of Medicine,Tanta University,Tanta,Egypt

Email

alaa.elkordy@med.tanta.edu.eg

City

-

Orcid

-

First Name

Islam

Last Name

Hegab

MiddleName

Ibrahim

Affiliation

Department of Medical Physiology, Faculty of Medicine, Tanta University, Tanta 31527, Egypt Department of Bio-Physiology, Ibn Sina National College for Medical Studies, Jeddah, Saudi Arabia

Email

islam.hegab@med.tanta.edu.eg

City

-

Orcid

0000-0003-1469-1941

First Name

Maram

Last Name

El Tabaa

MiddleName

Mohammed

Affiliation

Medical Physiology, Faculty of Medicine, Tanta University

Email

maram.eltabaa@med.tanta.edu.eg

City

Tanta

Orcid

https://orcid.org/00

Volume

45

Article Issue

2

Related Issue

50792

Issue Date

2025-04-01

Receive Date

2024-10-15

Publish Date

2025-04-01

Page Start

206

Page End

218

Print ISSN

1110-0842

Online ISSN

2356-9514

Link

https://besps.journals.ekb.eg/article_418797.html

Detail API

http://journals.ekb.eg?_action=service&article_code=418797

Order

418,797

Type

Original Article

Type Code

567

Publication Type

Journal

Publication Title

Bulletin of Egyptian Society for Physiological Sciences

Publication Link

https://besps.journals.ekb.eg/

MainTitle

The Prophylactic Role of Amlodipine in Cerebral Ischemia via PGC1 α/Nrf2/TFAM Pathway Activation

Details

Type

Article

Created At

29 Mar 2025