CONNECTIVE-TISSUE OF FAST AND SLOW SKELETAL-MUSCLE IN RATS - EFFECTS OF ENDURANCE TRAINING
CONNECTIVE-TISSUE OF FAST AND SLOW SKELETAL-MUSCLE IN RATS - EFFECTS OF ENDURANCE TRAINING
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DOI：
10.1111/j.1748-1716.1980.tb06515.x
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发表时间：
1980-01-01
期刊：
影响因子：
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通讯作者：
HEIKKINEN, E
中科院分区：
文献类型：
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作者：
KOVANEN, V;SUOMINEN, H;HEIKKINEN, E
对训练和非训练大鼠两种具有不同收缩特性的骨骼肌的结缔组织进行了研究。将待训练的动物在跑步机上跑步5天/周，持续4周。慢M [musculus] soleus（MS）表现出较高的苹果酸脱氢酶活性，但较低的乳酸脱氢酶活性相比，快速m。股直肌（MRF）。当考虑整个肌肉时，与MRF相比，MS的羟脯氨酸和己糖胺浓度均较高。在MS的中段，己糖胺含量比MRF高，而羟脯氨酸含量无明显差异。胶原的组织化学染色表明，MS也有更多的内部胶原比MRF。MRF和MS的胶原可能在不同的肌肉结缔组织成分中有不同的分布。与MS相比，胶原蛋白在MRF中的溶解度更高，而丙基羟化酶活性在肌肉之间没有显著差异。羟脯氨酸和己糖胺的浓度或胶原蛋白的溶解度不受训练的影响，但脯氨酰羟化酶的活性增加，在MS表明，胶原蛋白的代谢可能会加速体育锻炼。
The connective tissue of 2 skeletal muscles having different contractile properties was investigated in trained and untrained rats. The animals to be trained were put to run on a treadmill 5 days/wk for 4 wk. The slow m. [musculus] soleus (MS) showed higher malate dehydrogenase activity but lower lactate dehydrogenase activity compared to the fast m. rectus femoris (MRF). When whole muscles were considered, the concentrations of both hydroxyproline and hexosamines were higher for MS compared to MRF. In the middle section of MS there were more hexosamines than in that of MRF, but no similar difference existed in hydroxyproline. The histochemical staining of collagen suggested that there is also more internal collagen for MS as against MRF. Collagen of MRF and MS may be differently distributed in different muscle connective tissue components. Compared to MS, the solubility of collagen was higher in MRF, whereas no significant difference between the muscles existed in the propyl hydroxylase activity. The concentrations of hydroxyproline and hexosamines or the solubility of collagen were not affected by the training given, but the activity of prolyl hydroxylase was increased in MS suggesting that the metabolism of collagen may be accelerated by physical training.