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Retraction: In Vivo Antioxidant and Antiulcer Activity of Parkia speciosa Ethanolic Leaf Extract against Ethanol-Induced Gastric Ulcer in Rats. PLoS One 2023; 18:e0294012. [PMID: 37948324 PMCID: PMC10637640 DOI: 10.1371/journal.pone.0294012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023] Open
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Saremi K, Rad SK, Khalilzadeh M, Hussaini J, Majid NA. In vivo acute toxicity and anti-gastric evaluation of a novel dichloro Schiff base: Bax and HSP70 alteration. Acta Biochim Biophys Sin (Shanghai) 2020; 52:26-37. [PMID: 31889181 PMCID: PMC7014572 DOI: 10.1093/abbs/gmz140] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/07/2019] [Accepted: 11/01/2019] [Indexed: 12/19/2022] Open
Abstract
Chlorine is shown to possess anti-gastric ulcer activity, since it can inactivate Helicobacter pylori, which is regarded as one of the most common risk factors for causing gastric problems. In the current study, the gastroprotective property of a novel dichloro-substituted Schiff base complex, 2, 2'- [-1, 2-cyclohexanediylbis(nitriloethylidyne)] bis(4-chlorophenol) (CNCP), against alcohol-induced gastric lesion in SD rats was assessed. SD rats were divided into four groups, i.e. normal, ulcer control, testing, and reference groups. Ulcer area, gastric wall mucus, and also gastric acidity of the animal stomachs were measured. In addition, antioxidant activity of CNCP was evaluated and its safe dose was identified. Immunohistochemistry staining was also carried to evaluate two important proteins, i.e. Bcl2-associated X protein (Bax) and heat shock protein 70 (HSP70). Moreover, the activities of super oxide dismutase and catalase, as well as the levels of prostaglandin E2 (PGE2) and malondialdehyde (MDA) were also measured. Antioxidant activity of CNCP was approved via the aforementioned experiments. Histological evaluations showed that the compound possesses stomach epithelial defense activity. Additionally, periodic acid-Schiff staining exhibited over-expression of HSP70 and down-expression of Bax protein in the CNCP-treated rats. Moreover, CNCP caused deceased MDA level and elevated PGE2 level, and at the same time increased the activities of the two enzymes.
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Affiliation(s)
- Kamelia Saremi
- Institute of Biological Science, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Sima Kianpour Rad
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Maryam Khalilzadeh
- Department of Plant Pathology, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Jamal Hussaini
- Department of Medical Microbiology, Faculty of Medicine, Universiti Teknologi MARA 47000 Sungai Buloh, Selangor, Malaysia
| | - Nazia Abdul Majid
- Institute of Biological Science, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Yang J, Zhou W, Gu Y, Dai J, Li X, Tai P, Li Y, Ma X, Zhang Y. Protective effect of Pu-erh tea extracts against ethanol-induced gastric mucosal damage in rats. Biomed Rep 2018; 8:335-342. [PMID: 29556381 PMCID: PMC5844118 DOI: 10.3892/br.2018.1068] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 02/02/2018] [Indexed: 12/17/2022] Open
Abstract
Pu-erh tea has become a focus of research due to its reported biological activities, including anti-oxidation, anti-inflammation and anti-immunosenescence. The present study was performed to evaluate the potential gastroprotective function of Pu-erh tea extracts against ethanol-induced gastric mucosal damage in rats. Sprague Dawley rats were randomly divided into seven groups: A normal control, a model control, a cimetidine (0.08 g/kg) group, three Pu-erh tea extracts groups (low, moderate and high-dose; 0.50, 1.00 and 1.50 g/kg, respectively, and a green tea powder (1.00 g/kg) group. The normal and model groups were pre-treated with distilled water while the other groups were respectively administered cimetidine, Pu-erh tea extracts and green tea powder for 14 days. Then, absolute ethanol was orally administered to the rats of all groups excluding the normal controls. The effects of the pretreatments on gastric mucosal injury were evaluated by gross assessment of gastric lesions, examination of histopathology and determination of myeloperoxidase (MPO) activity and asymmetric arginine (ADMA) concentration in gastric mucosal homogenate. Pre-treatment with cimetidine or Pu-erh tea extracts markedly suppressed the formation of ethanol-induced gastric lesions. Furthermore, clear decreases in MPO activity and ADMA concentration in the gastric mucosal homogenate were observed following pretreatment with cimetidine or Pu-erh tea extracts. The anti-gastric ulcer activity of green tea was less than that of Pu-erh tea. Overall, these effects of Pu-erh tea extracts may be due to potential functions in protecting the gastric mucus layer and suppressing inflammation.
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Affiliation(s)
- Jinna Yang
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Wangyi Zhou
- Department of Pharmacology, Tasly R&D Institute, Tasly Pharmaceuticals, Inc., Tianjin 300410, P.R. China
| | - Yaru Gu
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Jinwei Dai
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Xinxin Li
- Department of Pharmacology, Tasly R&D Institute, Tasly Pharmaceuticals, Inc., Tianjin 300410, P.R. China
| | - Ping Tai
- Department of Pharmacology, Tasly R&D Institute, Tasly Pharmaceuticals, Inc., Tianjin 300410, P.R. China
| | - Yanchuan Li
- Department of Pharmacology, Tasly R&D Institute, Tasly Pharmaceuticals, Inc., Tianjin 300410, P.R. China
| | - Xiaohui Ma
- Department of Pharmacology, Tasly R&D Institute, Tasly Pharmaceuticals, Inc., Tianjin 300410, P.R. China
| | - Yuyang Zhang
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
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Retraction: Hashim, H. et al., Cytoprotective Effect of Benzyl N'-(5-Chloro-indol-3-yl-methylidene)hydrazinecarbodithioate against Ethanol-induced Gastric Mucosal Injury in Rats. Molecules 2012, 17, 9306-9320. Molecules 2013; 18:7910-1. [PMID: 23884126 PMCID: PMC6269651 DOI: 10.3390/molecules18077910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 06/28/2013] [Accepted: 06/28/2013] [Indexed: 11/17/2022] Open
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