- The Effects of Hyperglycemia and Hyperlipidemia on Muscle Glycogen Utilization during Exercise in rats.
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Jong Chul Ahn, Dong Woo Lee, Oog Jin Shon, Seuk Kang Lee
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Yeungnam Univ J Med. 1999;16(1):34-42. Published online June 30, 1999
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DOI: https://doi.org/10.12701/yujm.1999.16.1.34
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 Abstract
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- The effects of hyperglycemia and hyperlipidemia on utilization of muscle glycogen during 45 minutes treadmill running(26 m/min, 8 % grade) were evaluated in Sprague Dawley rats, and the charateristic of the 4 different type of muscles, soleus, white and red gastrocnemius, and plantaris, on glycogen utilization were simultameously investigated. Hyperglycemia, 145-165 mg/dL, was induced by oral glucose ingestion, and hyperlipidemia, 444 uEq/L, was induced by combined treatment of intraperitoneal heparine injection and oral 10 % intralipose ingestion. During the hyperglycemic trial, the glycogen utilization of plantaris muscle was decreased by 13 % at 45 minutes duration of treadmill running comparing to the control trial(p<0.05), and the glycogen utilization of white gastrocnemius was also decreased. The sparing tendency of soleus and red gastrocnemius by 5-13 % was observed at 30 and 45 minutes of treadmill running in hyperglycemic trial. There was no glycogen sparing effect of hyperlipidemia in the soleus, red gastrocnemius and plantaris muscle subjected in this experiment during exercise. However, only a slight sparing tendency of white gastrocnemius muscle was observed. In summary, the glycogen sparing effect of hyperglycemia during exercise was observed in plantaris and white gastrocnemius muscles in rats. However, there was no glycogen sparing effect of hyperlipidemia in the 4 hindlimb muscles. It was observed that the glycogen sparing effect of hyperglycemia is more prominant in fast glycolytic muscle fiber.
- Percutaneous K-wire fixation of supracondylar fracture of humerus in children.
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Duk Seop Shin, Jong Chul Ahn, Se Dong Kim, Dong Woo Lee
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Yeungnam Univ J Med. 1993;10(2):400-408. Published online December 31, 1993
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DOI: https://doi.org/10.12701/yujm.1993.10.2.400
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Abstract
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- During the period from March 1990 to November 1993, 22 children with diplaced supracondylar fracture of humerus were treated by closed reduction and percutaneous K-wire fixation at department of Orthopaedic surgery in Yeungnam University. All fracture were treated with closed reduction under the general anesthesia and percutaneous pinning. After the fracture was internally fixed, intraoperative anteroposterior reontgenograms of each distal humerus were compared. Only anatomical reduction ensured good result,, because the main cause of late cubitus varus was medial tilting of distal fragment. We could follow up 10 patients more than one year. By Flynn's criteria, satisfactory result were obtained in 9 of the 10. Unsatisfactory one had a limitation in flexion of elbow joint, but had no problem in cosmetic feature. In short term follow up of 7 patients, 5 patients had a satisfactory result, too. There were no neurovascular complication and hospitalization was shortened to 11.4 days. Closed reduction and percutaneous pinning provided stabillity, vascular safty, simplified management, reduced hospital stay. This is safe and reliable technique for obtaining and maintaining an exellent reduction.
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Yeungnam University College of Medicine
