Interactive effects of melatonin, exercise and diabetes on liver glycogen levels
Endokrynologia Polska, cilt.62, sa.3, ss.252-255, 2011 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 62 Sayı: 3
- Basım Tarihi: 2011
- Dergi Adı: Endokrynologia Polska
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.252-255
- Anahtar Kelimeler: Acute swimming exercise, Diabetes, Glycogen, Melatonin
- Akdeniz Üniversitesi Adresli: Evet
Özet
Background: This study aimed to examine the effects of melatonin supplementation on liver glycogen levels in rats with streptozotocin-induced diabetes and subjected to acute swimming exercise. Material and methods: Eighty Sprague-Dawley type adult male rats were divided into eight groups: Group 1, general control; Group 2, melatonin-supplemented control; Group 3, melatonin-supplemented diabetes; Group 4, swimming control; Group 5, melatonin-supplemented swimming; Group 6, melatonin-supplemented diabetic swimming; Group 7, diabetic swimming; Group 8, diabetic control. Melatonin was supplemented at a dose of 3 mg/kg/day intraperitoneally for four weeks. Liver tissue samples were collected and evaluated using a Nikon Eclipse E400 light microscope. All images obtained from the light microscope were transferred to PC medium and evaluated using Clemex PE 3.5 image analysis software. Results: The lowest liver glycogen levels in the study were found in group 4. Liver glycogen levels in groups 3, 6, 7 and 8 (the diabetic groups) were higher than group 4, but lower than those in groups 1 and 2. The lowest liver glycogen levels were obtained in groups 1 and 2. Conclusions: The study indicates that melatonin supplementation maintains the liver glycogen levels that decrease in acute swimming exercise, while induced diabetes prevents this maintenance effect in rats.