Effect of thyroidectomy on fast and slow muscle fibres of rat gastrocnemius muscle.
نویسندگان
چکیده
A combined histochemical, biochemical and electrophoretic study with respect to the enzymes succnic dehydrogenase(SDH), myofibrillar adenosine triphosphatase (m-ATPase), lactate dehydrogenase (LDH) isozymes and myosin light chains was carried out to investigate the response of rat gastrocnemius muscle (medial head). Twelve weeks after thyroidectomy, the results indicated a shift from fast to slow type pattern of LDH isozymes, fibre type transformation from Type II to Type I and a decrease in SDH and m-ATPase activity. The results suggest, possible thyroidal involvement in determining the phenotypic properties of skeletal muscle.
منابع مشابه
Effects of tripolar TENS of vertebral column on slow and fast motor units: A preliminary study using H-reflex recovery curve method
Introduction: Effect of tripolar TENS of vertebral column on slow and fast motoneurons (MNs) activity of soleus muscle was previously investigated. In this study for better differentiation of the behavior of slow and fast MNs, we exploited H-reflex recovery curve recording in two muscles of soleus and lateral gastrocnemius, respectively as the representatives of slow and fast muscles. Meth...
متن کاملThe Effect of Intensive Endurance Activity on Myocyte Enhancer Factor 2C Gene Expression of Slow and Fast Twitch Muscles in Male Wistar Rats: An Experimental Study
Background and Objectives: Myocyte enhancer factor 2c activates the genes of the slow-twitch muscle, the muscle which plays role in endurance activity. Therefore, the aim of this study was to evaluate the effect of a program of intensive endurance activity on MEF2c gene expression in fast and slow twitch skeletal muscles in wistar rats. Materials and Methods: In this experimental study, 14 mal...
متن کاملComparison of the immediate and delayed effects of two dry needle methods fast in fast out and winding in gastrocnemius muscle trigger points on lower extremity function and pain in non-professional athletes: A randomized controlled clinical trial
Introduction: The objective of this study was to compare two methods of dry needle treatment in active trigger points of Gastrocnemius muscle on pain and height jump in non-professional athletes. Materials and Methods: Forty male athletes were selected with active trigger points in each Gastrocnemius muscle. Relatively, subjects were assigned randomly in two conventional dry needle piston metho...
متن کاملThe Changes of Leg Musclus Activities Following Increase of Gait Velocity
Purpose: Motor control evaluation and analysis of it"s specifications for diagnosis of neuromuscular diseases is new approach in clinical electroneurophysiology, that is based on the changes of electromyography responses and classic reflexes in this field. In this study quantitative power spectrum frequency used for changes of motor control strategies. Materials and Methods: Twenty five health...
متن کاملImpact of Aerobic Exercise on Restoration of Soleus and Gastrocnemius Muscles Microcirculations in Wistar Rats with Chronic Heart Failure
ABSTRACT Background and Objective: Scientific evidence reveals that the density of skeletal muscle microcirculations decreases in the patients with chronic heart failure. Therefore, this study aimed to determine the impact of submaximal aerobic exercise training on restoration of fast/slow-twitch muscle fibers microcirculation in rats with myocard...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Indian journal of experimental biology
دوره 38 6 شماره
صفحات -
تاریخ انتشار 2000