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Henneh IT, Ahlidja W, Alake J, Mohammed H, Boapeah SO, Kwabil A, Malcolm F, Armah FA. Acute toxicity profile and gastroprotective potential of ethanolic leaf extract of Manihot esculenta Crantz. SCIENTIFIC AFRICAN 2022. [DOI: 10.1016/j.sciaf.2022.e01284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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da Mata AMOF, Paz MFCJ, de Menezes AAPM, dos Reis AC, da Silva Souza B, de Carvalho Sousa CD, Machado SA, Medeiros TSG, Sarkar C, Islam MT, Sharifi-Rad J, Daştan SD, Alshehri MM, de Castro e Sousa JM, de Carvalho Melo Cavalcante AA. Evaluation of mutagenesis, necrosis and apoptosis induced by omeprazole in stomach cells of patients with gastritis. Cancer Cell Int 2022; 22:154. [PMID: 35436881 PMCID: PMC9016981 DOI: 10.1186/s12935-022-02563-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 03/30/2022] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Gastritis is a superficial and prevalent inflammatory lesion that is considered a public health concern once can cause gastric ulcers and gastric cancer, especially when associated with Helicobacter pylori infection. Proton pump inhibitors, such as omeprazole, are the most widely used drugs to treat this illness. The aim of the study was evaluate cytogenetic effects of omeprazole in stomach epithelial cells of patients with gastritis in presence and absence of H. pylori, through cytogenetic biomarkers and catalse and superoxide dismutase analysis. METHODS The study included 152 patients from the Gastroenterology Outpatient Clinic of Hospital Getúlio Vargas, Teresina-Brazil, that reported continuous and prolonged omeprazole use in doses of 20, 30 and 40 mg/kg. The participants were divided into groups: (1) patients without gastritis (n = 32); (2) patients without gastritis but with OME use (n = 24); (3) patients with gastritis (n = 26); (4) patients with gastritis undergoing OME therapy (n = 26); (5) patients with gastritis and H. pylori (n = 22) and (6) patients with gastritis and H. pylori on OME therapy (n = 22). RESULTS OME induced cytogenetic imbalance in the stomach epithelium through the formation of micronuclei (group 6 > 1, 2, 3, 4, 5; group 5 > 1, 2, 3; group 4 > 1, 2, 3); bridges (groups 4 and 6 > 1, 2, 3, 5 and group 2 > 3, 5); buds (groups 2,4,6 > , 1, 3, 5); binucleated cells (group 6 > 1, 2, 3, 4, 5; group 4 > 1, 2, 3); (groups 2 and 3 > 1); picnoses (group 6 > 1, 2, 3, 4, 5), groups 2 and 5 > 1, 3; group 4 > 1, 2, 3, 5); cariorrexis (groups 6 and 4 > 1, 2, 3, 5; groups 2, 3, 5 > 1) and karyolysis (groups 2, 4, and 6 > 1, 3, 5; groups 3 and 5 > 1). The OME cytogenetic instability was associated with H. pylori infection, indicating clastogenic/aneugenic effects, chromosomes alterations, gene expression changes, cytotoxicity and apoptosis. CONCLUSIONS The cytogenetic changescan be attributed to several mechanisms that are still unclear, including oxidative damage, as observed by increased catalase and superoxide dismutase expresion. Positive correlations between antioxidant enzymes were found with micronuclei formation, and were negative for picnoses. Thus, the continuous and prolonged omeprazole use induces genetic instability, which can be monitored through cytogenetic analyzes, as precursor for gastric cancer.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Chandan Sarkar
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University Bangladesh, Gopalganj, 8100 Bangladesh
| | - Muhammad Torequl Islam
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University Bangladesh, Gopalganj, 8100 Bangladesh
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Facultad de Medicina, Universidad del Azuay, Cuenca, Ecuador
| | - Sevgi Durna Daştan
- Department of Biology, Faculty of Science, Sivas Cumhuriyet University, 58140 Sivas, Turkey
- Beekeeping Development Application and Research Center, Sivas Cumhuriyet University, 58140 Sivas, Turkey
| | - Mohammed M. Alshehri
- Pharmaceutical Care Department, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
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Allanblackia floribunda Seed Extract Attenuates the Ethanol-Induced Gastric Ulcer in Rats via the Inhibition of TNF- α and INF- γ Levels and Modulation in the Expression of Ki67 Protein. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6694572. [PMID: 33521129 PMCID: PMC7819754 DOI: 10.1155/2021/6694572] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/15/2020] [Accepted: 12/22/2020] [Indexed: 01/12/2023]
Abstract
Allanblackia floribunda has been used to treat an upset stomach in African traditional medicine, but its efficacy and safety have not been scientifically studied. The present research is aimed at assessing the antiulcer property of the seed extract of the plant to validate its traditional claim. Rats were pretreated with three doses of aqueous extract of A. floribunda (AFE) at 30, 100, and 300 mg/kg or omeprazole 10 mg/kg for 1 hr before the acute gastric ulcer was induced by oral administration of 5 mL/kg of 98% ethanol. The animals were sacrificed under anesthesia, and the stomach and blood were collected. The gross histology of the stomach, percentage protection conferred by the treatment, gastric pH, and serum TNF-α and INF-γ were assessed as well as the expression of Ki67 antigens. The antioxidant properties as well as the acute toxicity profile of the plant extract were also assessed. The results show that A. floribunda conferred significant protection on the rats against gastric ulceration with % protection of 46.15, 57.69, and 65.38 for AFE 30, 100, and 300 mg/kg, respectively, as well as 69.23% for omeprazole 10 mg/kg. The plant extract caused marked reductions in gastric pH, TNF-α, and INF-γ with statistical significance (p < 0.001) for AFE 300 mg/kg and omeprazole 10 mg/kg. Also, the plant showed good antioxidant activity comparable to gallic acid. Furthermore, the plant extract modulated the expression of Ki67 antigens. All animals survived the 14-day delayed toxicity test with no significant differences in physical, hematological, and biochemical parameters between rats orally administered with supratherapeutic doses of AFE (5000 mg/kg) or normal saline. The study established that the gastroprotective effect of the seed extract of A. floribunda is attributable to its antisecretory, antioxidant, and anti-inflammatory properties. Additionally, the plant was found to promote ulcer healing via the modulation of the expression Ki67 and was safe at supratherapeutic doses.
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Sofidiya MO, Taiwo E, Awolola V, Habila J, Koorbanally NA. Gastroprotective Effect and Chemical Constituents of Flabellaria paniculata (Malpighiaceae). Nat Prod Commun 2019. [DOI: 10.1177/1934578x19860342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Leaves from Flabellaria paniculata Cav (Malpighiaceae) are used in traditional medicine for wound dressing, and to treat ulcers and inflammation in Nigeria. The present study evaluates the gastroprotective activity of the ethyl acetate fraction of the methanolic leaf extract and reports on the chemical constituents from the fraction. The methanolic crude extract and solvent fractions (100 mg/kg, PO) were screened using an ethanol-induced ulcer model. The activity of the most active EtOAc fraction (25, 50, and 100 mg/kg, PO) was further evaluated in indomethacin and pylorus ligation-induced ulcer models. The EtOAc fraction was chromatographed and chemical structures of the isolated compounds were elucidated by nuclear magnetic resonance spectroscopy. The MeOH extract of F. paniculata and EtOAc fraction from this extract displayed significant gastroprotective effects. Two triterpenoids (friedelin and friedelinol), two steroids (sitosterol and sitosterol-β-d-glucoside), and a flavonoid glycoside (kaempferol-3- O-α-l-rhamnopyranosyl-(1→6)-β-d-glucopyranoside) were identified from the EtOAc fraction. This is the first report on the isolation of these compounds from the plant. The identified compounds could be responsible in part for the observed gastroprotective effect of the EtOAc fraction.
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Affiliation(s)
| | - Elizabeth Taiwo
- Department of Pharmacognosy, Faculty of Pharmacy, University of Lagos, Nigeria
| | - Victoria Awolola
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
- Department of Industrial Chemistry, Faculty of Physical Sciences, University of Ilorin, Nigeria
| | - James Habila
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
- Department of Chemistry, Ahmadu Bello University, Zaria, Nigeria
| | - Neil A. Koorbanally
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
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Mao S, Yang G, Li W, Zhang J, Liang H, Li J, Zhang M. Gastroprotective Effects of Astragaloside IV against Acute Gastric Lesion in Rats. PLoS One 2016; 11:e0148146. [PMID: 26845156 PMCID: PMC4742075 DOI: 10.1371/journal.pone.0148146] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 01/13/2016] [Indexed: 01/20/2023] Open
Abstract
Background Protection of the gastric mucosa from acute lesions induced by various irritants is a pertinent issue in the field of critical care medicine. In this study, we investigated the gastroprotective effects of astragaloside IV on acute gastric lesions in rats under stressful conditions. Methods Rats were randomized into six groups. Group 1 and 2 received 10% Tween 80 (vehicle). Group 3 received 20 mg/kg of omeprazole, a proton pump inhibitor. Groups 4, 5 and 6 received astragaloside IV at concentration of 1, 10, and 50 mg/kg, respectively. As a means to induce gastric lesions, Groups 2–6 were subjected to water immersion and restraint stress for 12 hours after treatment. Results Our present studies show that compared to rats in group 2, treatment with 1 to 50 mg/kg astragaloside IV significantly decreased the size of gastric lesions, MDA, TNFα and MCP1 levels, in addition to normalizing gastric pH, gastric mucus and SOD levels (P<0.05). Histomorphological examination confirmed that treatment with astragaloside IV elicited a dosage-dependent protective effect on the gastric mucosa. Furthermore, pretreatment with astragaloside IV resulted in significant elevations in HSP70 and reduction in Bax, along with over-expression of PLCγ response level, which was further confirmed via immunohistochemical analysis. Conclusions The acute gastric lesions induced are attenuated by pretreatment with astragaloside IV which is possibly due to the enhancing of the expression of HSP70 with concomitant antioxidant, anti-inflammatory and anti-apoptotic capacity.
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Affiliation(s)
- Shuai Mao
- Department of Critical Care Medicine, Guangdong Provincial Hospital of Chinese Medicine, Road Dade, Guangzhou 510120, China
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Road Jichang, Guangzhou 510405, China
- Physiology & Experimental Medicine, Hospital for Sick Children, Toronto M5G 0A4, Canada
| | - Guang Yang
- Department of Critical Care Medicine, Guangdong Provincial Hospital of Chinese Medicine, Road Dade, Guangzhou 510120, China
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Road Jichang, Guangzhou 510405, China
| | - Winny Li
- Faculty of Medicine, University of Toronto, University Ave., Toronto M5G 0A4, Canada
| | - Jian Zhang
- Department of Critical Care Medicine, Guangdong Provincial Hospital of Chinese Medicine, Road Dade, Guangzhou 510120, China
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Road Jichang, Guangzhou 510405, China
| | - Hailong Liang
- Department of Critical Care Medicine, Guangdong Provincial Hospital of Chinese Medicine, Road Dade, Guangzhou 510120, China
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Road Jichang, Guangzhou 510405, China
| | - Jian Li
- Department of Critical Care Medicine, Guangdong Provincial Hospital of Chinese Medicine, Road Dade, Guangzhou 510120, China
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Road Jichang, Guangzhou 510405, China
| | - Minzhou Zhang
- Department of Critical Care Medicine, Guangdong Provincial Hospital of Chinese Medicine, Road Dade, Guangzhou 510120, China
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Road Jichang, Guangzhou 510405, China
- * E-mail:
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Akindele AJ, Adeneye AA, Salau OS, Sofidiya MO, Benebo AS. Dose and time-dependent sub-chronic toxicity study of hydroethanolic leaf extract of Flabellaria paniculata Cav. (Malpighiaceae) in rodents. Front Pharmacol 2014; 5:78. [PMID: 24795634 PMCID: PMC4006035 DOI: 10.3389/fphar.2014.00078] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Accepted: 03/31/2014] [Indexed: 11/30/2022] Open
Abstract
Flabellaria paniculata Cav. (Malpighiaceae) is a climbing shrub, the preparations of which are used in the treatment of wounds and ulcers in Nigeria and Ghana. This study investigated the sub-chronic toxicity profile of the hydroethanolic leaf extract of F. paniculata (HLE-FP). HLE-FP was administered p.o. (20, 100, and 500 mg/kg) for 30 and 60 days to different groups of rats. Control animals received 10 ml/kg distilled water. In the group of animals for reversibility study, HLE-FP administration ceased on the 60th day and animals were monitored for a further 15 days. Results showed that oral treatment with HLE-FP for 30 days caused significant (p < 0.05) reductions in weight gain pattern compared to control. These changes were sustained with 60 days treatment. However, no significant (p > 0.05) differences in relative organ weights between control and treatment groups were observed. HLE-FP-treated rats showed significant (p < 0.05) increases in Hb, PCV and RBC on day 30 and significant (p < 0.05) increases in MCV and MCH indices on day 60 compared to control. There were significant (p < 0.05) elevations in serum K+, urea and creatinine compared to control. The liver function tests showed slight but non-significant alterations in relevant parameters when compared to control. Biochemical findings were supported by histopathological observations of vital organs including the kidney and liver. Toxicities observed in respect of kidney function were irreversible at 15 days of stoppage of treatment. In the acute toxicity study, HLE-FP given p.o. caused no lethality at 5000 mg/kg but behavioral manifestations like restlessness, generalized body tremor, feed, and water refusal were observed. The i.p. LD50 was estimated to be 2951.2 mg/kg. Findings in this study showed that HLE-FP is relatively non-toxic on acute exposure and generally safe on sub-chronic administration, but could be deleterious on the kidneys on prolonged oral exposure at a high dose. Thus, caution should be exercised with its long-term usage.
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Affiliation(s)
- Abidemi J Akindele
- Department of Pharmacology, Therapeutics and Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos Lagos, Nigeria
| | - Adejuwon A Adeneye
- Department of Pharmacology, Faculty of Basic Medical Sciences, Lagos State University College of Medicine Lagos, Nigeria
| | - Oluwole S Salau
- Department of Pharmacology, Therapeutics and Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos Lagos, Nigeria
| | - Margaret O Sofidiya
- Department of Pharmacognosy, Faculty of Pharmacy, University of Lagos Lagos, Nigeria
| | - Adokiye S Benebo
- Department of Pathology and Forensic Medicine, Faculty of Basic Medical Sciences, Lagos State University College of Medicine Lagos, Nigeria
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Gastroprotective Effects of Lion's Mane Mushroom Hericium erinaceus (Bull.:Fr.) Pers. (Aphyllophoromycetideae) Extract against Ethanol-Induced Ulcer in Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:492976. [PMID: 24302966 PMCID: PMC3835629 DOI: 10.1155/2013/492976] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 09/16/2013] [Indexed: 01/25/2023]
Abstract
Hericium erinaceus is a famous tonic in oriental medicine. The gastroprotective effects of aqueous extract of H. erinaceus against ethanol-induced ulcers in Sprague Dawley rats were investigated. The possible involvements of lipid peroxidation, superoxide dismutase, and catalase were also investigated. Acute toxicity study was performed. The effects of aqueous extract of H. erinaceus on the ulcer areas, ulcer inhibition, gastric wall mucus, gross and histological gastric lesions, antioxidant levels, and malondialdehyde (MDA) contents were evaluated in ethanol-induced ulcer in vivo. In acute toxicity study, a high dose of 5 g/kg did not manifest any toxicological signs in rats. The extract promoted ulcer protection as ascertained by a significant reduction of the ulcer area. Furthermore, it exhibited a significant protection activity against gastric mucosal injury by preventing the depletion of antioxidant enzymes. The level of MDA was also limited in rat stomach tissues when compared with the ulcer control group. Immunohistochemistry showed upregulation of HSP70 protein and downregulation of BAX protein in rats pretreated with the extract. The aqueous extract of H. erinaceus protected gastric mucosa in our in vivo model. It is speculated that the bioactive compounds present in the extract may play a major role in gastroprotective activity.
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Ignatius V, Narayanan M, Subramanian V, Periyasamy BM. Antiulcer Activity of Indigenous Plant Operculina turpethum Linn. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2013; 2013:272134. [PMID: 23476683 PMCID: PMC3582069 DOI: 10.1155/2013/272134] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 12/19/2012] [Accepted: 12/21/2012] [Indexed: 11/17/2022]
Abstract
In the Indian traditional system of medicine Operculina turpethum is commonly used to treat various ailments including peptic ulcer, inflammation, and pain. Ulcer preventive and ulcer protective activities of HAOP and MOP stem bark extracts of Operculina turpethum (100 mg/kg, b.w., orally) were evaluated employing aspirin + pylorus ligation (APL) model in experimental rats. The results suggested that both extracts (HAOP and MOP) possess enhanced ulcer preventive and protective activities when compared with the standard drug ranitidine. HAOP showed more pronounced effect when compared to MOP. Further the result of the histopathological and biochemical studies also confirms potent ulcer preventive and protective nature of a extracts in a similar manner.
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Affiliation(s)
- Vidya Ignatius
- Department of Pharmacology, Sathyabama University Dental College and Hospital, Sathyabama University, Jeppiaar Nagar, Rajiv Gandhi Road, Chennai, Tamilnadu 600 119, India
| | - Madhusudhanan Narayanan
- Department of Pharmacology, Sathyabama University Dental College and Hospital, Sathyabama University, Jeppiaar Nagar, Rajiv Gandhi Road, Chennai, Tamilnadu 600 119, India
| | - Venkataraman Subramanian
- Department of Pharmacology and Environmental Toxicology, Dr. ALM Post Graduate Institute of Basic Medical Science, University of Madras, Taramani Campus, Chennai, Tamilnadu 600 113, India
| | - Balasubramanian Maruthaiveeran Periyasamy
- Department of Pharmacology and Environmental Toxicology, Dr. ALM Post Graduate Institute of Basic Medical Science, University of Madras, Taramani Campus, Chennai, Tamilnadu 600 113, India
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