Article Publish Status: FREE
Abstract Title:

Lactobacillus reuteri DSM 17938 Protects against Gastric Damage Induced by Ethanol Administration in Mice: Role of TRPV1/Substance P Axis.

Abstract Source:

Nutrients. 2019 Jan 21 ;11(1). Epub 2019 Jan 21. PMID: 30669695

Abstract Author(s):

Ana P Oliveira, Luan K M Souza, Thiago S L Araújo, Simone de Araújo, Kerolayne M Nogueira, Francisca Beatriz M Sousa, Renan O Silva, Dvison M Pacífico, Conceição S Martins, Gerly Anne de C Brito, Marcellus H L P Souza, Jand Venes R Medeiros

Article Affiliation:

Ana P Oliveira


This study aimed to evaluate the effect ofDSM 17938 (DSM) on ethanol-induced gastric injury, and if its possible mechanism of action is related to inhibiting the transient receptor potential vanilloid type 1 (TRPV1). We evaluated the effect of supplementing 10⁸ CFU•g body wt•dayof DSM on ethanol-induced gastric injury. DSM significantly reduced the ulcer area (1.940± 1.121 mm²) with 3 days of pretreatment. The effects of DSM supplementation were reversed by Resiniferatoxin (RTX), TRPV1 agonist (3 nmol/kg p.o.). Substance P (SP) (1 μmol/L per 20 g) plus 50% ethanol resulted in hemorrhagic lesions, and DSM supplementation did not reverse the lesion area induced by administering SP. TRPV1 staining intensity was lower, SP, malondialdehyde (MDA) and nitrite levels were reduced, and restored normal levels ofparameters (glutathione and superoxide dismutase) in the gastric mucosa in mice treated with DSM. In conclusion, DSM exhibited gastroprotective activity through decreased expression of TRPV1 receptor and decreasing SP levels, with a consequent reduction of oxidative stress.

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