Correlating glutathione S-transferase P1-105 genetic polymorphisms to human exercise capacity in the high altitude environment / 中国组织工程研究

ABSTRACT

BACKGROUND:Glutathione S-transferase can get rid of active oxygen and enhance organism's antioxidative capability.OBJECTIVE:To analyze the association between glutathione S-transferase P1-105 (GSTP1-105)genetic polymorphisms and human exercise capacity in the high altitude environment.DESIGN,TIME AND SETTING:A controlled analysis was performed in the PLA Institute of Physical Education in 2007.PARTICIPANTS:A total of 86 professional mountain climbers who had strong physical performance in the high altitude environment served as experimental subjects.An additional 90 healthy students randomly selected from the PLA Institute of Physical Education served as controls.METHODS:Blood sample was taken from 86 experimental subjects and 90 healthy controls for extraction of genome DNA.GSTP1-105 genetic polymorphisms were detected by polymerase chain reaction-restriction fragment length polymorphism analysis.Distribution of GSTP1-105 alleles and genotypes were compared between experimental and control subjects.MAIN OUTCOME MEASURES:Distribution of GSTP1-105 genotype.RESULTS:Totally 3 GSTP1-105 genotypes were detectedhomozygous genotype of the A allele (NA,also called wide type genotype),heterozygous genotype (NG),and homozygous genotype of the G allele (G/G).The frequency of the G allele and variant genotype (A/G+G/G)were significantly lower in the experimental than in the control subjects (P＜0.01).Variant genotype (A/G+G/G)was taken as an exposure factor,then OR=2.19 and 95% CI=1.16-4.13,indicating that in the high altitude environment,the exercise capacity in individuals with GSTP1-105 variant genotype was decreased by 1.19 times than that in individuals with GSTP1-105 wide type genotype.CONCLUSION:GSTP1-105 genetic polymorphisms correlate to human exercise capacity in the high altitude environment.Subjects with wide type genotype have exercise predominance.