College of Science

The present study was proposed to investigte the role of human Leucocyte Antigen HLA-class I (A and B) and class II (DR) antigens and blood groop phenotypes in the aetiology of  chronic atrophic gastritis in a sample of Iraqi patients.The patients were also evaluated for total and absolute counts of leucocytes,immunophenotypes of lymphocytes(CD+,CD4=,CD8+andCD19+cells)and positivity of their sera for anti-Helicobacter pylori IgG antibody.

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Fifty different soil samples (contaminated and uncontaminated with hydrocarbons compounds) were collected from different places in Iraq. Twenty five isolates showed the ability to  utilize methanol as a sole source of carbon and energy. These isolates were repeatedly tested in the defined medium supplemented with methanol to ensure methanol utilizing ability, then only 12 isolates that appeared, really have  the ability to utilize methanol and were named as (HK1,HK2,……,HK12), it was found that these isolates were varied in their growth density in utilizing methanol.