华中科技大学学报(医学英德文版)
華中科技大學學報(醫學英德文版)
화중과기대학학보(의학영덕문판)
JOURNAL OF TONGJI MEDICAL UNIVERSITY
2001年
1期
44-47
,共4页
王同光%洪光祥%王拴科%王发斌%HUANG Qishun%WENG Yuxiong
王同光%洪光祥%王拴科%王髮斌%HUANG Qishun%WENG Yuxiong
왕동광%홍광상%왕전과%왕발빈%HUANG Qishun%WENG Yuxiong
ATP was added to the cultured sensory neurons obtained from the dorsal root ganglia of the neonatal rats and PBS was added to serve as control. MTT assays were conducted to evaluate the survival and activity of the cultured neurons. And the silicone regenerative chamber was used after the sciatic nerve incision of the mature SD rat. 1 mmol/L ATP was injected into the left chamber and 0.09 % natrium chloride was injected into the right chamber as controls. The changes of nitric oxide synthase (NOS) activity in the corresponding dorsal root ganglia were measured histochemically and image analysis was also performed 4 days after the sciatic nerve injury. The results showed that extracellular ATP could enhance the survival of the neurons and the number of NOS positive neurons were significantly different between the ATP and control groups (P<0.05). It was suggested that extracellular ATP had neurotrophic effect on neurons survival and could inhibit the NOS activity of the sensory neurons after the peripheral nerve incision, hence exerting the protective effect on the neurons, which was valuable for nerve regeneration after nerve injury.