1. bookVolume 19 (2012): Issue 4 (December 2012)
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Gender and Contractile Functions of Slow and Fast Skeletal Muscles in Streptozotocin Induced Diabetic Sprague Dawley Rats

Published Online: 28 Dec 2012
Page range: 417 - 424
Journal Details
License
Format
Journal
First Published
01 May 2012
Publication timeframe
4 times per year
Languages
English
Copyright
© 2020 Sciendo

Objectives: Diabetes mellitus has been linked with specific morphological andmetabolic abnormalities of skeletal muscle in a fiber specific manner. Aim: Thepresent study was designed to compare the contractile functions of slow and fastskeletal muscles in streptozotocin (STZ) induced diabetic male and female SpragueDawley rats. Material and methods: Thirty healthy Sprague Dawley rats (15 maleand 15 female) were divided into two groups and studied after four weeks followingdiabetes induction. The rats in group I (male diabetic; n = 15) and group II (femalediabetic; n = 15) were fed on normal pellet diet and water ad libitum and rendereddiabetic by single intraperitoneal injection of STZ 65 mg/kg body weight at the startof study (day 1). At the end of four weeks, the contractile parameters of slow soleusand fast extensor digitorum longus (EDL) muscles were recorded by iWorx advancedanimal/human physiology data acquisition unit (AHK/214). Results: At the end offour weeks, the weight of isolated soleus and EDL muscles in the male diabetic ratswas significantly higher (p < 0.001) as compared to the female diabetic rats.However, no significant difference was found in any of the contractile functions ofisolated soleus and EDL muscles when compared between the male and femalediabetic rats. Conclusion: No gender differences exist in the contractile functions ofslow and fast skeletal muscles in streptozotocin induced diabetic Sprague Dawleyrats.

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