Glucose-6-phosphate dehydrogenase deficiency: biochemical and histochemical studies on hair roots for carrier detection.
نویسندگان
چکیده
Kinetic properties of human hair root glucose-6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase were studied in order to optimize the assay of these enzymes in lysates from single hair roots. In contrast to previously reported methods, an excess of purified 6-phosphogluconate dehydrogenase was added to the glucose-6-phosphate dehydrogenase reaction mixtures, thus allowing a more exact quantification of glucose-6-phosphate dehydrogenase activity. Although enzyme histochemical techniques suggest a similar distribution of hair root glucose-6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase, enzyme assays on hair root segments after microdissection nevertheless indicate differences in the distribution of these enzymes. Upon storage a gradual drop in the activity of both hair root enzymes was found, but the rate of decrease in enzyme activity was about equal: the enzyme activity ratio was, therefore, not affected. This opens interesting possibilities for mailing hair roots for screening purposes without any special precautions.
منابع مشابه
Glucose-6-Phosphate Dehydrogenase Deficiency Associated with Thalassemia and Sickle Cell Anemia in an Iranian Family
Sickle cell-thalassemia associated with glucose- 6-phosphate dehydrogenese deficiency is reported in an Iranian family. The father had sickle trait and G.6.P.D. deficiency, the mother minor thalassemia, one of the sons siclc:le ceH-thailasemiia., the oth-er sickle cell trait; the daughter had sickle cell-thalassemia and was carrier of G.6.P.D. deficiellcy.
متن کاملPrevalence of Glucose-6-Phosphate Dehydrogenase Deficiency among Male Donors in Shiraz, Southern Iran
The overall incidence of glucose-6-phosphate dehydrogenase (G6PD) deficiency in Iranian population is estimated around 10%-14.9%. G6PD deficiency is an X-linked disorder and 80% of donors are usually male. At present, donors’ blood is not routinely screened for G6PD deficiency in Iran blood bank where for detecting such enzyme deficiency, reliance is placed on pre-donation data. Thus, the G6PD ...
متن کاملPossible Association between Glucose-6-Phosphate Dehydrogenase Deficiency and the Development of Preeclampsia
Glucose-6-Phosphate dehydrogenase (G6PD) deficiency is a common enzyme deficiency in the world. It's Prevalence inIranis about 12% in male & about 1% in female. The present study did examine the relation between the development of preeclampsia and G6PD deficiency. It was investigated whether or not the risk of preeclampsia in G6PD deficient women is higher than that in normal pregnant women.A t...
متن کاملMolecular Characterization of Cosenza Mutation among Patients with Glucose-6-Phosphate Dehydrogenase Deficiency in Khuzestan Province, Southwest Iran
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is one of the most common hereditary enzymatic disorders in human, increases the vulnerability of erythrocytes to oxidative stress. It is also characterized by remarkable molecular and biochemical heterogeneity. According to previous investigations, G6PD Cosenza (G1376C) is a common G6PD mutation in some parts of Iran. Therefore in the present...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Journal of clinical chemistry and clinical biochemistry. Zeitschrift fur klinische Chemie und klinische Biochemie
دوره 17 5 شماره
صفحات -
تاریخ انتشار 1979