PMID- 15792355 OWN - NLM STAT- MEDLINE DCOM- 20050711 LR - 20190818 IS - 0300-8177 (Print) IS - 0300-8177 (Linking) VI - 270 IP - 1-2 DP - 2005 Feb TI - Energy metabolism in the granulation tissue of diabetic rats during cutaneous wound healing. PG - 71-7 AB - 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. FAU - Gupta, Asheesh AU - Gupta A AD - Division of Pharmacology, Central Drug Research Institute, Lucknow, India. FAU - Raghubir, Ram AU - Raghubir R LA - eng PT - Journal Article PL - Netherlands TA - Mol Cell Biochem JT - Molecular and cellular biochemistry JID - 0364456 RN - 5W494URQ81 (Streptozocin) RN - EC 1.1.1.27 (L-Lactate Dehydrogenase) RN - EC 1.1.1.49 (Glucosephosphate Dehydrogenase) RN - EC 2.3.3.1 (Citrate (si)-Synthase) RN - EC 2.7.1 - (Phosphofructokinases) RN - EC 2.7.1.1 (Hexokinase) RN - IY9XDZ35W2 (Glucose) SB - IM MH - Animals MH - Citrate (si)-Synthase/metabolism MH - *Diabetes Mellitus, Experimental MH - Energy Metabolism MH - Glucose/metabolism MH - Glucosephosphate Dehydrogenase/metabolism MH - Granulation Tissue/*enzymology MH - Hexokinase/metabolism MH - L-Lactate Dehydrogenase/metabolism MH - Male MH - Phosphofructokinases/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Skin/metabolism MH - Streptozocin/pharmacology MH - Time Factors MH - *Wound Healing EDAT- 2005/03/29 09:00 MHDA- 2005/07/12 09:00 CRDT- 2005/03/29 09:00 PHST- 2005/03/29 09:00 [pubmed] PHST- 2005/07/12 09:00 [medline] PHST- 2005/03/29 09:00 [entrez] AID - 10.1007/s11010-005-5258-3 [doi] PST - ppublish SO - Mol Cell Biochem. 2005 Feb;270(1-2):71-7. doi: 10.1007/s11010-005-5258-3.