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Varzandeh R, Khezri MR, Esmaeilzadeh Z, Jafari A, Ghasemnejad-Berenji M. Protective effects of topiramate on acetic acid-induced colitis in rats through the inhibition of oxidative stress. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:1141-1149. [PMID: 37632553 DOI: 10.1007/s00210-023-02677-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 08/14/2023] [Indexed: 08/28/2023]
Abstract
Ulcerative colitis is an intestinal inflammatory condition characterized by a rise in inflammatory mediator production and oxidative stress. Topiramate is an anticonvulsant agent with effectiveness on a wide range of seizures, which is anti-oxidative. This study aims to examine the protective effects of topiramate on acetic acid-induced ulcerative colitis in rats. Rats were randomly divided into four groups as follows: control, acetic acid, acetic acid + topiramate, and acetic acid + dexamethasone groups. Topiramate (100 mg/kg/day) or dexamethasone (2 mg/kg/day) was administered for six consecutive days, and ulcerative colitis was induced on the first day of the study by transrectal administration of 4% acetic acid. Four hours after the last dose of treatments, animals of each group were sacrificed, and colon tissues were removed for further macroscopic, histopathologic, and biochemical analyses. Treatment with topiramate markedly decreased colonic lesions and macroscopic scores as well as the improvement of histopathologic changes. Topiramate also effectively decreased the levels of malondialdehyde and upregulated the activity of anti-oxidative enzymes, including catalase, superoxide dismutase, and glutathione peroxidase. Our results reveal that the administration of topiramate ameliorates acetic acid-induced colitis in rats via anti-oxidative properties, and further studies may introduce it as an effective therapeutic candidate to decrease ulcerative colitis severity.
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Affiliation(s)
- Reza Varzandeh
- Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
| | | | - Zeinab Esmaeilzadeh
- Department of Nutrition, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
- Department of Biochemistry, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Abbas Jafari
- Cellular and Molecular Research Center, Research Institute On Cellular and Molecular Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Morteza Ghasemnejad-Berenji
- Department of Pharmacology and Toxicology, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran.
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Arab HH, Abd El Aal HA, Alsufyani SE, El-Sheikh AAK, Arafa ESA, Ashour AM, Kabel AM, Eid AH. Topiramate Reprofiling for the Attenuation of Cadmium-Induced Testicular Impairment in Rats: Role of NLRP3 Inflammasome and AMPK/mTOR-Linked Autophagy. Pharmaceuticals (Basel) 2022; 15:1402. [PMID: 36422532 PMCID: PMC9697422 DOI: 10.3390/ph15111402] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/08/2022] [Accepted: 11/11/2022] [Indexed: 08/27/2023] Open
Abstract
Topiramate, a promising drug classically used for the management of neurological disorders including epilepsy and migraine, has demonstrated marked anti-inflammatory and anti-apoptotic actions in murine models of cardiac post-infarction inflammation, wound healing, and gastric/intestinal injury. However, its potential impact on cadmium-induced testicular injury remains to be elucidated. Herein, the present study aimed to explore the effect of topiramate against cadmium-invoked testicular impairment with emphasis on the molecular mechanisms linked to inflammation, apoptosis, and autophagy. Herein, administration of topiramate (50 mg/kg/day, by gavage) continued for 60 days and the testes were examined by histology, immunohistochemistry, and biochemical assays. The present data demonstrated that serum testosterone, sperm count/abnormalities, relative testicular weight, and histopathological aberrations were improved by topiramate administration to cadmium-intoxicated rats. The rescue of testicular dysfunction was driven by multi-pronged mechanisms including suppression of NLRP3/caspase-1/IL-1β cascade, which was evidenced by dampened caspase-1 activity, lowered IL-1β/IL-18 production, and decreased nuclear levels of activated NF-κBp65. Moreover, curbing testicular apoptosis was seen by lowered Bax expression, decreased caspase-3 activity, and upregulation of Bcl-2. In tandem, testicular autophagy was activated as seen by diminished p62 SQSTM1 accumulation alongside Beclin-1 upregulation. Autophagy activation was associated with AMPK/mTOR pathway stimulation demonstrated by decreased mTOR (Ser2448) phosphorylation and increased AMPK (Ser487) phosphorylation. In conclusion, combating inflammation/apoptosis and enhancing autophagic events by topiramate were engaged in ameliorating cadmium-induced testicular impairment.
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Affiliation(s)
- Hany H. Arab
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Hayat A. Abd El Aal
- Department of Pharmacology, Egyptian Drug Authority (EDA), Formerly NODCAR, Giza 12654, Egypt
| | - Shuruq E. Alsufyani
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Azza A. K. El-Sheikh
- Basic Health Sciences Department, College of Medicine, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - El-Shaimaa A. Arafa
- College of Pharmacy and Health Sciences, Ajman University, Ajman 346, United Arab Emirates
- Center of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman 346, United Arab Emirates
| | - Ahmed M. Ashour
- Department of Pharmacology and Toxicology, College of Pharmacy, Umm Al Qura University, P.O. Box 13578, Makkah 21955, Saudi Arabia
| | - Ahmed M. Kabel
- Department of Pharmacology, Faculty of Medicine, Tanta University, Tanta 31527, Egypt
| | - Ahmed H. Eid
- Department of Pharmacology, Egyptian Drug Authority (EDA), Formerly NODCAR, Giza 12654, Egypt
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Ahmadzadeh M, Esmaeilzadeh Z, Khezri MR, Jafari A, Ghasemnejad-Berenji M. The Promising Effect of Topiramate on Random-Pattern Skin Flap Survival in Rats. Aesthetic Plast Surg 2022; 46:2548-2555. [PMID: 35715535 DOI: 10.1007/s00266-022-02969-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/21/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Partial necrosis of skin flaps following plastic and reconstructive surgeries is one of the major problems in these medical interventions. This study was conducted to evaluate the beneficial effects of topiramate an anti-epileptic agent on ischemic random skin flaps. MATERIALS AND METHODS Twenty-four Wistar rats were provided and randomly divided into four experimental groups (control group and low-, intermediate- and high-dose treatment groups). A rat random-pattern skin flap model was performed in all groups, and animals in the low-, intermediate- and high-dose experimental groups were administered topiramate intraperitoneally at doses of 25, 50 and 100 mg/kg, respectively, 1 h before raising the flap and once daily for 7 consecutive days after the initial surgical procedure. Control rats received vehicle according to the same schedule. On postoperative day 7 the flap necrotic area was measured, and tissue samples were stained with hematoxylin and eosin for histological analysis. Furthermore, the oxidative stress in flap tissue was assessed by measuring the activity of superoxide dismutase (SOD), glutathione (GSH) level and the content of malondialdehyde (MDA). RESULTS Treating animals with 50 and 100 mg/kg topiramate significantly decreased the necrotic flap areas as compared to the control group. Histological studies demonstrated that in intermediate and high dose topiramate groups the inflammatory cell numbers were attenuated and microvessel development were markedly increased. Furthermore, the MDA contents were significantly reduced and GSH levels were significantly increased in these groups as compared to the control group. However, the SOD activity was increased significantly only in high-dose group as compared to the control group. CONCLUSIONS These findings indicated that topiramate in doses of 50 and 100 mg/kg increases random skin flap survival. NO LEVEL ASSIGNED This journal requires that authors assign a level of evidence to each submission to which Evidence-Based Medicine rankings are applicable. This excludes Review Articles, Book Reviews, and manuscripts that concern Basic Science, Animal Studies, Cadaver Studies, and Experimental Studies. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Mehdi Ahmadzadeh
- Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
| | - Zeinab Esmaeilzadeh
- Department of Nutrition, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
- Department of Biochemistry, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | | | - Abbas Jafari
- Department of Toxicology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran.
- Cellular and Molecular Research Center, Research Institute on Cellular and Molecular Medicine, Urmia University of Medical Sciences, Urmia, Iran.
| | - Morteza Ghasemnejad-Berenji
- Experimental and Applied Pharmaceutical Research Center, Urmia University of Medical Sciences, Urmia, Iran.
- Department of Pharmacology and Toxicology, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran.
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Jafari A, Andishfar N, Esmaeilzadeh Z, Khezri MR, Ghasemnejad-Berenji M. Gastroprotective effect of topiramate on indomethacin-induced peptic ulcer in rats: Biochemical and histological analyses. Basic Clin Pharmacol Toxicol 2022; 130:559-568. [PMID: 35261181 DOI: 10.1111/bcpt.13718] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/16/2022] [Accepted: 02/24/2022] [Indexed: 12/13/2022]
Abstract
Topiramate is an anticonvulsant drug effective against a wide range of seizures and epilepsies. The present study was conducted to investigate the possible protective effect of topiramate on indomethacin-induced gastric mucosal damage in rats. The animals were randomly distributed into four experimental groups with 10 animals in each group. Group 1 was the control group received vehicle only (DMSO at 1:4 (w/v)), group 2 was the model group received indomethacin (50 mg/kg; i.p.), and groups 3 and 4 received topiramate (100 mg/kg; i.p.) and ranitidine (100 mg/kg; i.p.), respectively, 1 h before indomethacin (50 mg/kg; i.p.). The efficacy of topiramate was compared with ranitidine. Animals were euthanized 4 h after indomethacin administration, and gastric tissues were collected for macroscopical, histopathological, and biochemical analyses. The mucosal lesions in the gastric corpus were evaluated by pathological examinations. The results revealed that the administration of indomethacin caused evident gastric mucosal damage with morphological and histological manifestation, whereas topiramate pretreatment extensively ameliorated the gastric injuries. Topiramate pretreatment also reduced the contents of tissue malonaldehyde, enhanced ferric reducing antioxidant power value and glutathione levels, and increased the activity of superoxide dismutase, catalase, and glutathione peroxidase in gastric mucosa compared to the model group. Our results indicate that topiramate might possess a protective role against indomethacin-induced gastric ulcers by inhibition of oxidative stress in gastric tissue.
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Affiliation(s)
- Abbas Jafari
- Department of Toxicology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran.,Cellular and Molecular Research Center, Research Institute on Cellular and Molecular Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Nafiseh Andishfar
- Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
| | - Zeinab Esmaeilzadeh
- Department of Nutrition, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran.,Department of Biochemistry, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | | | - Morteza Ghasemnejad-Berenji
- Experimental and Applied Pharmaceutical Research Center, Urmia University of Medical Sciences, Urmia, Iran.,Department of Pharmacology and Toxicology, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
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