Early Effects of High Intensity X-radiation on Skeletal Muscle

نویسندگان

  • Herbert B. Gerstner
  • Robert B. Lewis
  • Everett O. Richey
چکیده

Comparative studies of x-radiation effects on both isolated cold blooded (frog) and intact warm blooded (rabbit) muscles were performed. Frog muscles irradiated with doses above 50 kr showed early fatigue, contracture, prolongation of relaxation time, decreased contraction amplitude for heavy loads, and histologic changes noticeable 8 hours after exposure. Rabbit muscles exposed to 72 kr exhibited a gradually progressing impairment of function. Complete abolishment of function was reached within 24 hours following irradiation and was accompanied by severe histologic alterations.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

THE EFFECTS OF INTERVAL TRAINING INTENSITY ON SKELETAL MUSCLE PGC-1Α IN TYPE2 DIABETIC MALE RATS

Background: The purpose of this study was to compare the effects of a 12 weeks interval training with high and moderate intensity on PGC-1α of skeletal muscle in type 2 diabetic male rats. Methods: 40 male rats were divided into two groups: High fat diet (HFD) (n=32) and standard diet (C) (n=8) for 10 weeks. After inducing type2 diabetes via STZ, 8 diabetic rats (D) and 8 rats in group C rats ...

متن کامل

The effect of high-intensity interval training (HIIT) on gene expression of apoptotic markers in the skeletal muscle of diabetic rats

Background and Aims: Apoptosis plays important roles in the pathophysiology of Type 2 diabetes. The aim of this study was to evaluate the effect of high-intensity interval training (HIIT) on gene expression of apoptotic markers in the skeletal muscle of diabetic rats. Methods: To implementation of this experimental research, 60 male Wistar rats weighing 220 ± 20 gr randomly were divided into 5 ...

متن کامل

The Effects of Eight Weeks High Intensity Intermittent Training and Blood Flow Restricted on Angiogenic Markers of Muscle in Male Runners

Background. Due to the lack of sufficient information about the interactive effects of high intensity intermittent training (HIIT) and blood flow restricted (BFR) exercises on angiogenic variables of skeletal muscle, it seems that integration these training models can influence skeletal muscle angiogenesis in the long term over the individual application of each of these training methods. Obje...

متن کامل

The Effect of High and Low-Intensity Interval Training on TRF1 and TRF2 Gene Expression in Slow and Fast-Twitch Skeletal Muscles of C57BL/6 Mice: An Experimental Study

Background and Objectives: The process of chronic diseases and aging is associated with reduced telomere length. The aim of this study was to investigate the effect of high-intensity interval training (HIIT) and low-intensity interval training (LIIT) on telomere repeat binding factor 1 and 2 (TRF1 and TRF2) in Soleus (SOL) muscle as a slow-twitch (ST) and Extensor Digitorum Longus (EDL) muscle ...

متن کامل

The Combined Effect of High-Intensity Interval Training and Metformin on Gene Expression of Myogenin and Myostatin in Skeletal Muscle of Type 2 Diabetic Mice

Background: Myogenin (MyoG) and Myostatin (Mstn) play role in muscle growth and wasting, respectively. The present study aimed to investigate the combined effect of High-intensity Interval Training (HIIT) and Metformin drug (Metf) on gene expression of MyoG and Mstn in skeletal muscle of type 2 diabetic mice. Methods: 25 mice (C57BL/6) were assigned to two groups, including 1) Control © (n=5),...

متن کامل

ذخیره در منابع من

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • The Journal of General Physiology

دوره 37  شماره 

صفحات  -

تاریخ انتشار 1954