Chem Biodivers
School of Pharmaceutical Sciences of Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil.
Published: January 2023
Propolis has been used for the treatment of gastric disturbances in folk medicine, nevertheless, the gastric healing effects of Brazilian red propolis have not been unveiled. This study aimed to assess the gastric healing effect of the hydroalcoholic extract of red propolis (HERP) in the acetic acid-induced ulcer model. Rats under acetic acid-induced-ulcer were treated with HERP (100 mg/kg, p.o.) twice a day for seven days. Histological changes, oxidative stress, and inflammatory parameters were analyzed in the gastric tissue. Moreover, the gastric wall thickness was measured by ultrasound. The in vitro cytotoxicity of HERP and cellular migration of fibroblasts were evaluated. The treatment with HERP promoted gastric healing, reducing gastric wall thickness, macroscopic lesion area, and histopathological damages compared to the vehicle. Moreover, HERP reduced oxidative stress and inflammation in the gastric tissue but did not change mucin or collagen levels. HERP did not show signs of toxicity either in vivo or in vitro. HERP displayed a healing effect in vivo by reducing oxidative stress and inflammation. These data contribute to validating the popular use of this product in the treatment of gastric disorders and advance scientific knowledge in the search for new drugs for the management of gastric ulcers.
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http://dx.doi.org/10.1002/cbdv.202200992 | DOI Listing |
Pharmacol Res
January 2025
Korean Convergence Medical Science Major, Korea National University of Science and Technology (UST), Daejeon, 34113, South Korea; Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine (KIOM), 111 Geonjae-Ro, Naju-Si, South Korea. Electronic address:
Aspilia africana (Pers.) C. D.
View Article and Find Full Text PDFLife (Basel)
November 2024
Faculty of Engineering and Natural Sciences, Department of Molecular Biology and Genetics, Biruni University, Istanbul 34015, Türkiye.
Purpose: Although chemotherapy is one of the standard treatments for gastric cancer, the disease's resistance mechanisms continue to limit the survival rates. (), an immune checkpoint belonging to the B7 family, is significantly overexpressed in gastric cancer. This work investigated the possibility of using suppression to improve the effectiveness of the widely used chemotherapy medication docetaxel.
View Article and Find Full Text PDFJ Clin Gastroenterol
December 2024
Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX.
Objective: Even though the prevalence of malignancy within gastric ulcers is low, surveillance endoscopy is routinely performed after gastric ulcer diagnosis resulting in unnecessary costs and risks. Endoscopic appearance may be used to identify ulcers with malignant features and guide decisions regarding the need for surveillance endoscopy. Our aim was to assess the predictive value of several endoscopic ulcer features with the risk of prevalent malignancy in patients diagnosed with gastric ulcers.
View Article and Find Full Text PDFSci Rep
January 2025
Departments of Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical University, No. 57, South of Renmin Avenue, Zhanjiang, 524001, Guangdong Province, China.
We aimed to explore the role of circular RNA 0043256 (circ_0043256) in gastric cancer (GC) and its underlying mechanisms. The impact of circ_0043256 silencing on the proliferation, migration, apoptosis, and aerobic glycolysis of MKN-45 and AGS cells induced by CoCl2 was assessed through the utilization of CCK-8, wound healing assay, flow cytometry, and metabolic analysis. The interaction between circ_0043256 and miR-593-5p, as well as the involvement of the miR-593-5p/RRM2 axis in gastric cancer, were confirmed via luciferase assay, Western blot, and bioinformatics analysis.
View Article and Find Full Text PDFVet Med Sci
January 2025
Department of Medical Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey.
The present study aimed to unveil the gastroprotective potential of Vaccinium macrocarpon (VM) extract and its mechanism of action against indomethacin (INDO)-induced gastric ulcers in rats. To achieve this goal, rats were pretreated with either omeprazole (20 mg/kg) or VM (100 mg/kg) orally for 14 consecutive days. Gastric tissue samples were collected and various parameters were evaluated to understand the mechanism of VM's action, including the levels of superoxide dismutase, malondialdehyde, glutathione, CAT and transforming growth factor beta (TGF-β), as well as the mRNA expression levels of tumour necrosis factor alpha, interleukin 1 beta, nuclear factor kappa B (NF-κB) and inhibitor kappa B (IκB).
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