Animal models are essential to studies of infectious diseases. The use of mice to test bacterial infection has been extensively reported. However, methods applied to clinical isolates, particularly for carbapenem-resistant bacteria, must be tailored according to the infection models and bacteria used. In this study, we infected 6-week-old female BALB/c mice intraperitoneally with different strains of resistant bacteria plus 3% hog gastric mucin. This method was found to be efficient and readily applicable for investigation of carbapenem-resisant Gram-negative pathogens (e.g., Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Acinetobacter baumannii) detected in Korea.
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http://dx.doi.org/10.3947/ic.2017.49.1.57 | DOI Listing |
Biochem Biophys Res Commun
August 2021
Department of Pharmaceutical Physiology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan.
The gastric proton pump (H,K-ATPase) responsible for the H secretion of gastric acid is an essential therapeutic target for acid-related diseases. H,K-ATPase belongs to a P-type ATPase family. Here, we examined the effects of a newly synthesized dihydropyrazole derivative KYY-008 on the H,K-ATPase.
View Article and Find Full Text PDFBackground: Vitamin B12 is very important for the human body. Early diagnosis of vitamin B12 deficiency is essential because it is associated with many problems such as fatigue, lethargy, depression, poor memory, breathlessness, headaches, pale skin, mania, psychosis, etc. Most of the vitamin B12 molecules in serum bind to specific proteins as a complex; so, although researchers have developed some sensitive methods to quantify vitamin B12, few can be used for human serum detection of vitamin B12 because of disturbed releasing process.
View Article and Find Full Text PDFBiochem Biophys Res Commun
October 2019
Department of Pharmaceutical Physiology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan.
In the stomach, Sonic Hedgehog (Shh) is highly expressed in gastric parietal cells, and acts as a morphogen in early development of the organ. Here, we found that the cleaved N-terminal fragment of Shh (Shh-N) was abundantly expressed in hog gastric vesicles derived from the apical membrane of parietal cells. Interestingly, Shh-N recombinant significantly decreased K-dependent ATP-hydrolyzing activity, which is sensitive to an inhibitor of H,K-ATPase (SCH28080), in hog gastric tubulovesicles and membrane fractions of the H,K-ATPase-expressing cells.
View Article and Find Full Text PDFComput Biol Med
August 2018
College of Computer Science and Technology, Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun, Jilin, 130012, China. Electronic address:
Endoscopy is becoming one of the widely-used technologies to screen the gastric diseases, and it heavily relies on the experiences of the clinical endoscopists. The location, shape, and size are the typical patterns for the endoscopists to make the diagnosis decisions. The contrasting texture patterns also suggest the potential lesions.
View Article and Find Full Text PDFEur J Pharmacol
February 2018
Department of Biological Chemistry Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan. Electronic address:
Myricetin (3,3',4',5,5',7-hexahydroxyflavone), a major flavonoid in berries and red wine, has been recently used as a health food supplement based on its antioxidant and antitumor properties. We report here that myricetin preferentially exerts inhibitory effects on gastric H, K-ATPase. Myricetin inhibited H, K-ATPase with a sub-micromolar IC value in an enzyme assay using freeze-dried tubulovesicles prepared from hog stomach.
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