Background: Helicobacter pylori (HP) infection is one of the most important causes of gastrointestinal diseases such as peptic ulcer. This bacterium has recently been reported to be associated with low serum vitamin B12 level. In this study we investigated the relationship between Helicobacter pylori seropositivity and the serum B12 level in women aging 15-49 years in Khorram Abad . Material...

  Background :Hyperhomocysteinemia is a risk factor for cardiovascular disease particularly in patients with end stage renal disease (ESRD). Vitamin B12 supplementation on its own still remains as a controversial issue for clinicians in decreasing the level of homcysteine in this group of patients.   Methods : Using all randomized controlled trials (RCTs), clinical trials and pre-post-trial stu...

the goal of this research was to isolate and identify the thermostable alkaline protease producing bacteria among several native iranian microorganisms. at the end of screening program, a bacillus subtilis bp-36 strain producing thermophilic alkaline protease was isolated from a hot spring in ardebil province. the target enzyme was purified using a one-step aqueous two-phase systems (atps) prot...

Monshi Karimi AR1, Mohtadi-nia J2, Farhodi M3 1. M.Sc Student of nutritional sciences, Faculty of Health, Tabriz University of Medical Sciences 2. Associated professor, Department of Nutritional, Faculty of Health, Tabriz University of Medical Sciences 3. Assistant professor, Department of Internal, Faculty of medicine, Tabriz University of Medical Sciences Abstract Background: Isc...

When PrevoteUa ruminicola 23 was grown in a defined medium containing a vitamin mixture, significant amounts of propionate were formed. Succinate and acetate were the major fermentation acids produced when vitamins were omitted, and further experiments demonstrated that propionate formation was dependent on vitamin B12. When the organism was grown in continuous culture at dilution rates of less...

A hybridoma-derived monoclonal antibody. produced by immunization with the Burkitt’s tumor-derived B-Iymphoblastoid cell line. B35M. was previously shown to detect a 68.000 dalton surface membrane protein. B12. on the surface of peripheral blood B cells. which is absent from thymocytes. T cells. and granulocytes. In this study. we investigated the expression and distribution of B12 on benign an...

introduction: elevated plasma total homocysteine is an independent risk factor for cardiovascular disease and a sensitive marker of vitamin b12 and folate insufficiency. folate and vitamin b12 have a protective effect on cardiovascular disease. this effect may be partly explained by mechanisms independent of homocysteine. this survey is the first population based study to evaluate the plasma to...

A protease produced by Vibrio mimicus was purified to apparent homogeneity by ammonium sulfate fractionation and successive column chromatography on Sephacryl S-100 and Mono Q Monobeads. The sodium dodecyl sulfate-polyacrylamide gel electrophoresis (PAGE) of the final preparation of the enzyme revealed the homogeneity of the purified enzyme. Conventional PAGE showed that the purified protease m...