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Isolation, Characterisation and Evaluation of Antiulcerogenic Potentials of Probiotic Lactic Acid Bacteria Isolated from Fermented Milk and Palm Wine against Ethanol-Induced Gastric Ulcer in Mice

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Journal of Biosciences and Medicines 2022年第9期10卷 311-331页

作者： Fabrice Ambe Ngwa Bertrand Tatsinkou Fossi Germain Sotoing Taiwe Liliane Laure Toukam Tatsinkou Pride Tanyi Bobga Merveille Tchichoua Ndalloka dane damo lea Bertrand Yuwong Wanyu Samuel Wanji Department of Microbiology and Parasitology Faculty of Science University of Buea Buea Cameroon Department of Medical Laboratory Sciences Faculty Health Sciences University of Buea Buea Cameroon Department of Zoology and Animal Physiology Faculty of Science University of Buea Buea Cameroon

Background: Gastric ulcer is one of the most common gastrointestinal diseases with a worldwide prevalence of about 40% in the developed countries and 80% in Africa. Acid inhibitors, anticholinergics, histamine H2-antagonists and antibiotics are commonly used to treat gastric ulcer. However, the accumulating evidence for resistance to antibiotics and the side effects of antibiotics and acid inhibitors, anticholinergics and histamine H2-antagonists. Therefore, there is an urgent need for approaches to treat and prevent gastric ulcer. One alternative strategy is the use of probiotic lactic acid bacteria. Aim of the study: This study aimed to isolate and characterised probiotic lactic acid bacteria from palm wine and fermented milk, and to evaluate their antiulcerogenic potentials on ethanol-induced gastric ulcer in mice. Methods: Probiotic lactic acid bacteria were isolated from the fermented milk and palm wine using pour plate technique on MRS agar and identified using the 16S r RNA gene sequencing. For functional properties and selection, acid and bile salt tolerance were evaluated based on viable colony count on MRS agar. Two probiotic lactic acid bacteria were selected for in vivo studies. Fifty-four healthy young adult Balb/c mice were randomly divided into 9 groups of 6 mice each. Gastric ulcer was induced in mice using one oral dose of absolute ethanol (10 mL/kg body weight). The probiotic lactic acid bacteria (F1 and F2) at different doses (MF3 = 9 × 108 CFU/mL, MF6 = 1.8 × 109 CFU/mL and MF9 = 2.7 × 109 CFU/mL) and omeprazole (20 mg/kg) (a reference drug) were orally administrated daily for 14 days before ulcer induction. These mice were sacrificed 1hour after induction and the stomach contents were collected for volume and pH determination. The stomachs were subjected to macroscopic, biochemical and histopathological analysis. Results: Among the isolates obtained, two were considered to have the best acid and bile tolerance ca

关键词： Probiotics Lactic Acid Bacteria Antiulcerogenic Potentials Fermented Milk Palm Wine

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