Energy metabolism in the granulation tissue of diabetic rats during cutaneous wound healing

被引：2
作者：
Asheesh Gupta
Ram Raghubir
机构：
[1] Central Drug Research Institute,Division of Pharmacology
[2] Defence Institute of Physiology and Allied Sciences,Division of Biochemical Pharmacology
来源：
Molecular and Cellular Biochemistry | 2005年 / 270卷
关键词：
energy metabolism; cutaneous; wound; diabetes; impaired healing;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The skin cells chiefly depend on carbohydrate metabolism for their energy requirement during cutaneous wound healing. Since the glucose metabolism is greatly hampered in diabetes and this might affect wound repair process. This prompted us to investigate the intermediate steps of energy metabolism by measuring enzyme activities in the wound tissues of normal and streptozotocin-induced diabetic rats following excision-type of cutaneous injury. The activities of key regulatory enzymes namely hexokinase (HK), phosphofructokinase (PFK), lactate dehydrogenase (LDH), citrate synthase (CS) and glucose-6 phosphate dehydrogenase (G6PD) have been monitored in the granulation tissues of normal and diabetic rats at different time points (2, 7, 14 and 21 days) of postwounding. Interestingly, a significant alteration in all these enzyme activities was observed in diabetic rats. The activity of PFK was increased but HK, LDH and CS showed a decreased activity in the wound tissue of diabetics as compared to normal rats. However G6PD exhibited an elevated activity only at early stage of healing in diabetic rats. Thus, the results suggest that significant alterations in the activities of energy metabolizing enzymes in the wound tissue of diabetic rats may affect the energy availability for cellular activity needed for repair process and this may perhaps be one of the factor responsible for impaired healing in these subjects. (Mol Cell Biochem 270: 71–77, 2005)
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页码：71 / 77
页数：6
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