ArticleMolecular and cellular biochemistry2015
Effect of duration of diabetes mellitus type 1 on properties of Na, K-ATPase in cerebral cortex.
Article in Molecular and cellular biochemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 5 citations in OpenAlex.
- Cerebrospinal fluid electrolytes and acid-base in diabetic patients.Translational neuroscience · 2021Article
- Properties of Na,K-ATPase in cerebellum of male and female rats: effects of acute and prolonged diabetes.Molecular and cellular biochemistry · 2017Article
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6 authors at 1 institution in 1 country.
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Abstract
Time sequence study was performed to characterize the effects of diabetes mellitus type 1 on properties of the Na, K-ATPase in cerebral cortex derived from normal and streptozotocin (STZ)-diabetic rats of both genders. The samples were excised at varying time intervals of diabetes induced by STZ (65 mg kg(-1)) for 8 days, and 8 and 16 weeks. Expression of α1-3 isoforms of Na, K-ATPase was not altered in statistically significant level during all stages of diabetes neither in female nor in male rats as revealed from Western blot analysis. Studies of kinetic properties of the enzyme resulted in variations in active number of Na, K-ATPase molecules as well as its qualitative properties. Sixteen-week-old control male rats showed better affinity to substrate as indicated by 13 % decrease of K m value. The effect persisted also in males subjected to 8 days lasting diabetes; however, in males subjected to 8 weeks lasting diabetes, the effect was lost. In 25-week-old rats, the Na, K-ATPase revealed again altered properties in males and females but the mechanism of the variation was different. In females, the number of active molecules of Na, K-ATPase was higher by 32 % in controls and by 17 % in rats with chronic diabetes when comparing to respective male groups as suggested by increased value of V max. So the properties of Na, K-ATPase in cerebral cortex, playing crucial role in maintaining intracellular homeostasis of Na(+) ions, depend on gender, age, and duration of diabetic insult.
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