title: Relations between serum pepsinogen levels, pepsinogen phenotypes, ABO blood groups, age and sex in blood donors.
abstract: Serum pepsinogen A (pepsinogen I) levels and urinary pepsinogen A phenotypes were studied in relation to ABO blood group, age and sex in 700 healthy blood donors. There was no relation between urinary pepsinogen A phenotypes and serum pepsinogen A levels. It is concluded that serum PGA levels and PGA phenotypes are independent factors in predisposition to gastroduodenal disorders. Serum pepsinogen A levels were higher in males than in females and rose with increasing age. The ABO blood groups were not related to pepsinogen A phenotypes. Blood group O individuals showed higher serum pepsinogen A levels compared with blood group A. Pepsinogen A phenotypes with intensity of fraction 5 were more frequent in males compared with females.
mesh_terms: D000017:ABO Blood-Group System / Q000235:genetics*; D000328:Adult; D000367:Age Factors; D000368:Aged; D001782:Blood Donors; D005260:Female; D005767:Gastrointestinal Diseases / Q000097:blood / Q000235:genetics; D005787:Gene Frequency; D006801:Humans; D008297:Male; D008875:Middle Aged; D010435:Pepsinogens / Q000097:blood* / Q000235:genetics; D010641:Phenotype; D012737:Sex Factors
chemical_list: D000017:ABO Blood-Group System; D010435:Pepsinogens