索状因子（cord factor）：为分枝菌酸和海藻糖结合的一种糖脂，成分为6,6-双分枝菌酸海藻糖，存在菌细胞外层，能使结核分枝杆菌相互粘连，在液体培养基中...
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The main reason of perinatal death were umbilical cord factors, fet al malformation, preterm labor, placental factor, oligohydramnios, severe preeclampsia and pregnancy complicated syphilis.
围生儿死亡主要原因依次为：脐带因素、胎儿畸形、早产、胎盘因素、羊水过少、重度子痫前期、妊娠合并梅毒。
BACKGROUND: Studies have shown that nerve growth factor microspheres can promote repair of spinal cord injury.
背景：已往研究表明，神经生长因子微球对脊髓损伤的修复有促进作用。
The formation of necrosis cavum and glial scar after spinal cord injured was one of important factor that affected regeneration of nerve fiber and neuron.
脊髓损伤后所形成的坏死空洞和反应性增生的胶质瘢痕是导致脊髓损伤再生修复受阻的重要因素。
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