PMID- 26485919 OWN - NLM STAT- MEDLINE DCOM- 20160915 LR - 20181202 IS - 1003-5370 (Print) IS - 1003-5370 (Linking) VI - 35 IP - 8 DP - 2015 Aug TI - [Effect of Herba Lycopodii Alcohol Extracted Granule Combined Methylprednisolone on Expression Levels of BDNF and NMDA and Behavior of Traumatic Spinal Cord Injury Rats]. PG - 1004-10 AB - OBJECTIVE: To study different effects of Herba Lycopodii (HL) Alcohol Extracted Granule combined methylprednisolone on behavioral changes, brain derived neurotrophic factor (BDNF) expression levels, and N-methyl-D-aspartate (NMDA) receptor levels in rats with spinal cord injury (SCI). METHODS: Male adult SD rats were randomly divided into five groups, i.e., the sham-operation group, the model group, the HL treatment group, the methylprednisolone treatment group, the HL + methylprednisolone treatment group. Rats in the HL treatment group were intragastrically administered with HL at the daily dose of 50 mg/kg for 5 successive days. Rats in the methylprednisolone treatment group were intramuscularly injected with 50 mg/kg methylprednisolone within 8 h after spinal cord contusion, and then the dose of methylprednisolone was reduced for 10 mg/kg for 5 successive days. Rats in the HL + methylprednisolone treatment group received the two methods used for the aforesaid two groups. Basso Beattie and Bresnahan (BBB) score (for hindlimb motor functions) were assessed at day 0, 3, 7, and 28 after operation. At day 13 after SCI, injured spinal T8-10 was taken from 8 rats of each group and stored in liquid nitrogen. The N-methyl-D-aspartate (NMDA) receptor affinity (Kd) and the maximal binding capacity (Bmax) were determined using [3H]MK-801 radioactive ligand assay. Rats' injured spinal cords were taken for immunohistochemical assay at day 28 after SCI. Expression levels of BDNF in the ventral and dorsal horn of the spinal cord were observed. RESULTS: Compared with the sham-operation group, the number of BDNF positive neurons in the ventral and dorsal horn of the spinal cord increased in the model group, Bmax increased (470 +/- 34), Kd decreased, and BBB scores decreased at day 3 -28 (all P <0. 05). Compared with the SCI model group, the number of BDNF positive neurons and Kd increased, BBB scores at day 3 -28 increased (P <0. 05) in each medicated group. Bmax was (660 +/- 15) in the methylprednisolone treatment group, (646 +/- 25) in the HL treatment group, and (510 +/- 21) in the HL +methylprednisolone treatment group (P <0. 05). Compared with the methylprednisolone treatment group, the number of BDNF positive neurons and Kd increased, BBB scores at day 7 -28 increased, and Bmax decreased in the HL treatment group and the HL + methylprednisolone treatment group (all P <0. 05). Compard with the HL treatment group, the number of BDNF positive neurons and Kd increased, and Bmax decreased (all P < 0.05). CONCLUSIONS: HL could effectively improve motor functions of handlimbs, increase expression levels of BDNF in the spinal cord, and lessen secondary injury by affecting spinal levels of NMDA receptors. It showed certain therapeutic and protective roles in treating SCI. Its effect was better than that of methylprednisolone with synergism. FAU - Xu, Zheng-guang AU - Xu ZG FAU - Yang, Jun AU - Yang J FAU - Lv, Zhi-ping AU - Lv ZP FAU - Wang, Ting-hua AU - Wang TH FAU - Li, Xiao-song AU - Li XS FAU - Liu, Jiang-hua AU - Liu JH FAU - Zhao, Nan AU - Zhao N FAU - Xiyang, Yan-bin AU - Xiyang YB LA - chi PT - Journal Article PL - China TA - Zhongguo Zhong Xi Yi Jie He Za Zhi JT - Zhongguo Zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine JID - 9211576 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Drugs, Chinese Herbal) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - 3K9958V90M (Ethanol) RN - 6384-92-5 (N-Methylaspartate) RN - X4W7ZR7023 (Methylprednisolone) SB - IM MH - Animals MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Drugs, Chinese Herbal/*pharmacology/therapeutic use MH - Ethanol MH - Male MH - Methylprednisolone/pharmacology/*therapeutic use MH - Models, Animal MH - N-Methylaspartate/*metabolism MH - Neurons MH - Random Allocation MH - Rats MH - Rats, Sprague-Dawley MH - Receptors, N-Methyl-D-Aspartate MH - Spinal Cord Injuries/*drug therapy/metabolism EDAT- 2015/10/22 06:00 MHDA- 2016/09/16 06:00 CRDT- 2015/10/22 06:00 PHST- 2015/10/22 06:00 [entrez] PHST- 2015/10/22 06:00 [pubmed] PHST- 2016/09/16 06:00 [medline] PST - ppublish SO - Zhongguo Zhong Xi Yi Jie He Za Zhi. 2015 Aug;35(8):1004-10.