On the genetic polymorphism of the serum alpha-amylase in the population of the south western Bulgaria (second communication).

Introduction: The paper presents data on population distribution of individual phenotypes and gene frequencies of alpha-amylase in random serum samples from the population of the South-Western regions of Bulgaria.

Material And Methods: We studied 1939 individuals of both sexes aged between 18 and 45 years from the South-Western regions of Bulgaria. They were clinically healthy and without kinship ties.

Polymorphism of the serum alpha-amylase in the population of the South Central and South Eastern regions of Bulgaria and its relationship with the erythrocyte blood group systems ABO and MNSs.

Introduction: The goal of the study was to investigate the relationship between the polymorphism of alpha-amylase and the erythrocyte systems--ABO, MNSs, and determine their population distribution and individual phenotype and gene incidence.

Material And Methods: Parallel examinations of identical blood samples were carried out to determine the phenotypes of alpha-amylase and ABO and MNSs blood group systems. Blood was obtained by venipuncture in the Serological Laboratory of the Department of Forensic Medicine at the Medical University of Plovdiv.