Alcohol dehydrogenase (ADH) isoenzyme activity in the sera of patients with Helicobacter pylori infection. 2007

Wojciech Jelski, and Lech Chrostek, and Wiktor Laszewicz, and Maciej Szmitkowski
Department of Biochemical Diagnostics, Medical University, Waszyngtona 15 A, Bialystok, Poland. wjelski@amb.edu.pl

Human gastric mucosa contains three classes of alcohol dehydrogenase (ADH) isoenzymes: I, III, and IV. Various factors have been found to influence gastric ADH activity. One of them is Helicobacter pylori infection, which is associated with gastric mucosal injury and leads to a decrease in gastric ADH activity. The aim of the study was to assess the effect of H. pylori infection on the serum activity of ADH isoenzymes. Serum samples were taken from 35 patients with H. pylori infection and from 35 healthy subjects. For measurement of class I isoenzyme activity we employed the fluorometric method, with class-specific fluorogenic substrate (4-methoxy-1-naphthaldehyde). The activities of class III and IV ADH isoenzymes were measured by the photometric method with formaldehyde and with m-nitrobenzaldehyde as substrate, respectively. Total activity of ADH was measured by a photometric method with p-nitrosodimethylaniline. The total activities of ADH and class IV isoenzyme were significantly higher in sera of patients with H. pylori infection compared to healthy subjects. The serum activity of other tested isoenzymes of ADH did not differ significantly between infected and noninfected groups. We conclude that H. pylori infection of gastric mucosa is reflected in the serum by a significant increase in class IV and total ADH activity.

UI MeSH Term Description Entries
D007527 Isoenzymes Structurally related forms of an enzyme. Each isoenzyme has the same mechanism and classification, but differs in its chemical, physical, or immunological characteristics. Alloenzyme,Allozyme,Isoenzyme,Isozyme,Isozymes,Alloenzymes,Allozymes
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000426 Alcohol Dehydrogenase A zinc-containing enzyme which oxidizes primary and secondary alcohols or hemiacetals in the presence of NAD. In alcoholic fermentation, it catalyzes the final step of reducing an aldehyde to an alcohol in the presence of NADH and hydrogen. Alcohol Dehydrogenase (NAD+),Alcohol Dehydrogenase I,Alcohol Dehydrogenase II,Alcohol-NAD+ Oxidoreductase,Yeast Alcohol Dehydrogenase,Alcohol Dehydrogenase, Yeast,Alcohol NAD+ Oxidoreductase,Dehydrogenase, Alcohol,Dehydrogenase, Yeast Alcohol,Oxidoreductase, Alcohol-NAD+
D016022 Case-Control Studies Comparisons that start with the identification of persons with the disease or outcome of interest and a control (comparison, referent) group without the disease or outcome of interest. The relationship of an attribute is examined by comparing both groups with regard to the frequency or levels of outcome over time. Case-Base Studies,Case-Comparison Studies,Case-Referent Studies,Matched Case-Control Studies,Nested Case-Control Studies,Case Control Studies,Case-Compeer Studies,Case-Referrent Studies,Case Base Studies,Case Comparison Studies,Case Control Study,Case Referent Studies,Case Referrent Studies,Case-Comparison Study,Case-Control Studies, Matched,Case-Control Studies, Nested,Case-Control Study,Case-Control Study, Matched,Case-Control Study, Nested,Case-Referent Study,Case-Referrent Study,Matched Case Control Studies,Matched Case-Control Study,Nested Case Control Studies,Nested Case-Control Study,Studies, Case Control,Studies, Case-Base,Studies, Case-Comparison,Studies, Case-Compeer,Studies, Case-Control,Studies, Case-Referent,Studies, Case-Referrent,Studies, Matched Case-Control,Studies, Nested Case-Control,Study, Case Control,Study, Case-Comparison,Study, Case-Control,Study, Case-Referent,Study, Case-Referrent,Study, Matched Case-Control,Study, Nested Case-Control
D016480 Helicobacter pylori A spiral bacterium active as a human gastric pathogen. It is a gram-negative, urease-positive, curved or slightly spiral organism initially isolated in 1982 from patients with lesions of gastritis or peptic ulcers in Western Australia. Helicobacter pylori was originally classified in the genus CAMPYLOBACTER, but RNA sequencing, cellular fatty acid profiles, growth patterns, and other taxonomic characteristics indicate that the micro-organism should be included in the genus HELICOBACTER. It has been officially transferred to Helicobacter gen. nov. (see Int J Syst Bacteriol 1989 Oct;39(4):297-405). Campylobacter pylori,Campylobacter pylori subsp. pylori,Campylobacter pyloridis,Helicobacter nemestrinae

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