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Fibre type composition of soleus and extensor digitorum longus muscles in normal female inbred Lewis ratsSoukup, Tomáš ; Zachařová, Gisela ; Smerdu, VikaWe have analysed the fibre type composition of soleus and extensor digitorum longus (EDL) muscles of normal female 4-6-month-old inbred Lewis rats. This rat strain is used in our ongoing study of the ... effects of thyroid hormone on myosin heavy chain (MyHC) isoform expression. On the basis of the mATPase reaction, soleus muscles contained 96.1 2.9% of type 1 fibres supplemented by 2A fibres. EDL muscles contained type 1 (5.5 1.0%), type 2A (18.8 1.7%)and type 2B (75.7 2.2%) fibres. Immunohistochemical analysis and SDS gel electrophoresis confirmed that most fibres in the soleus muscle expressed the type 1 (slow) MyHC isoform and that only a small proportion of fibres expressed the fast 2a MyHC isoform. Immunohistochemical analysis and SDS gel electrophoresis demonstrated that almost half of the 2B fibres of EDL muscles expressed the 2x/d MyHC isoform. In both muscle types, many fibres expressed more than one MyHC isoform. The content of slow fibres in the soleus muscle offemale inbred Lewis rats was slightly higher than that reported for Wistar rats, but was considerably higher than that of Sprague-Dawley rats, whereas substantial differences were not found in the proportion of slow and fast fibre types in EDL muscles in these strains.Vir: Acta histochemica. - ISSN 0065-1281 (Letn. 104, št. 4, 2002, str. 399-405)Vrsta gradiva - članek, sestavni delLeto - 2002Jezik - angleškiCOBISS.SI-ID - 15966425
Avtor
Soukup, Tomáš |
Zachařová, Gisela |
Smerdu, Vika
Teme
Muscle, Skeletal |
Anatomy And Histology |
Muscle Fibers, Fast-Twitch |
Muscle Fibers, Slow-Twitch |
Myosin Heavy Chains |
Immunohistochemistry |
Electrophoresis, Starch Gel |
Adenosine Triphosphate |
Rats, Inbred Lew |
Rats, Wistar |
Rats, Sprague-Dawley |
Rats, Inbred F344 |
Miozin težkih verig |
Mišica skeletna |
Mišična vlakna hitra |
Mišična vlakna počasna |
Adenozin trifosfat |
Elektroforeza, škrob, gel |
Imunohistokemija |
Miši seva F344 |
Miši seva Lew |
Podgane, Sprague-Dawley |
Podgane, Wistar
Vnos na polico
Trajna povezava
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Soukup, Tomáš | |
Zachařová, Gisela | |
Smerdu, Vika | 10641 |
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