Objective:To further explore the mechanism of congenital pyrimidine 5'-nucleotidase I deficiency.Methods:The samples were collected from the family members of a patient with P5N'-I deficiency.The enzyme activi...Objective:To further explore the mechanism of congenital pyrimidine 5'-nucleotidase I deficiency.Methods:The samples were collected from the family members of a patient with P5N'-I deficiency.The enzyme activities were measured by UMP method and the enzyme proteins were quantified by ELISA while the morphology of peripheral blood cells was observed.Results:The enzyme contents reduced as their enzyme activities decreased in the family especially in four members.There was a significant positive correlation(r=0.955)between the activity and the content of P5'N-I.The count of the stippling cell was varied in the family.Conclusion:One of the reasons for congenital P5'N-I deficiency might be the deficiency in the enzyme content.The morphology of peripheral blood erythrocyte may be an assistant diagnotic index.The P5'N-I activites and contents were measured simultaneously may be a effective method in clinic diagnosis.展开更多
文摘Objective:To further explore the mechanism of congenital pyrimidine 5'-nucleotidase I deficiency.Methods:The samples were collected from the family members of a patient with P5N'-I deficiency.The enzyme activities were measured by UMP method and the enzyme proteins were quantified by ELISA while the morphology of peripheral blood cells was observed.Results:The enzyme contents reduced as their enzyme activities decreased in the family especially in four members.There was a significant positive correlation(r=0.955)between the activity and the content of P5'N-I.The count of the stippling cell was varied in the family.Conclusion:One of the reasons for congenital P5'N-I deficiency might be the deficiency in the enzyme content.The morphology of peripheral blood erythrocyte may be an assistant diagnotic index.The P5'N-I activites and contents were measured simultaneously may be a effective method in clinic diagnosis.