Effect of Long-Term Intraperitoneal Zinc Administration on Liver Glycogen Levels in Diabetic Rats Subjected to Acute Forced Swimming

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• 作者：Mursel Bicer (1)
  Mehmet Gunay (2)
  Mustafa Akil (3)
  Mustafa Cihat Avunduk (4)
  Rasim Mogulkoc (5)
  Abdulkerim Kasim Baltaci (6)
  
• 关键词：Zinc ; Diabetes ; Acute swimming exercise ; Glycogen
• 刊名：Biological Trace Element Research
• 出版年：2011
• 出版时间：March 2011
• 年：2011
• 卷：139
• 期：3
• 页码：317-324
• 全文大小：254KB
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• 作者单位：Mursel Bicer (1)
  Mehmet Gunay (2)
  Mustafa Akil (3)
  Mustafa Cihat Avunduk (4)
  Rasim Mogulkoc (5)
  Abdulkerim Kasim Baltaci (6)
  
  1. High School of Physical Fitness and Sport, Selcuk University, 42031, Konya, Turkey
  2. High School of Physical Fitness and Sport, Gazi University, Ankara, Turkey
  3. City Office of Youth Sport, Konya, Turkey
  4. Meram Medical School, Department of Pathology, Selcuk University, Konya, Turkey
  5. Meram Medical School, Department of Physiology, Selcuk University, Konya, Turkey
  6. Selcuklu Medical School, Department of Physiology, Selcuk University, Konya, Turkey
  

文摘

This study aims to examine the effect of zinc administration on liver glycogen levels of rats in which diabetes was induced with streptozotocin and which were subjected to acute swimming exercise. The study was conducted on 80 adult Sprague–Dawley male rats, which were equally allocated to eight groups: group 1, general control; group 2, zinc-administrated control; group 3, zinc-administrated diabetic control; group 4, swimming control; group 5, zinc-administrated swimming; group 6, zinc-administrated diabetic swimming; group 7, diabetic swimming; group 8, diabetic control group. In order to induce diabetes, animals were injected with 40?mg/kg intraperitoneal (ip) streptozotocin. The injections were repeated in the same dose after 24?h. Animals which had blood glucose at or above 300?mg/dl 6?days after the last injections were accepted as diabetic. Zinc was administrated ip for 4?weeks as 6?mg/kg/day per rat. Hepatic tissue samples taken from the animals at the end of the study were fixed in 95% ethyl alcohol. Cross sections of 5?μm thickness, taken by the help of a microtome from the tissue samples buried in paraffin, were placed on a microscope slide and stained with periodic acid–Schiff and evaluated by light microscope. All microscopic images were transferred to a PC and assessed with the help of Clemex PE3.5 image analysis software. The lowest liver glycogen levels in the study were obtained in groups 3, 4, 6, 7, and 8. Liver glycogen levels in group 5 were higher than groups 3, 4, 6, 7, and 8, but lower than groups 1 and 2 (p-lt;-.05). Groups 1 and 2 had the highest liver glycogen levels. The results obtained from the study indicate that liver glycogen levels which dropped in acute swimming exercise were restored by zinc administration and that diabetes induced in rats prevented the protective effect of zinc.