Objective To investigated the analgesic effect of processed Aconiti tuber(PAT) in rats with a sciatic nerve chronic constriction injury(CCI) .Methods The study was conducted in two parts. CCI model was developed with four ligatures placed around the right sciatic nerve and tied without obstructing the blood supply of the nerve. In part Ⅰ, forty rats were randomly divided into five groups(n = 8) . In group Ⅰ normal saline 1 ml , In group Ⅱ-Ⅴ PAT 0.5 ,1, 2 ,or 4 g/kg was administered orally 14 days after CCI respectively. In part Ⅱ , thirty-two rats were randomly divided into four groups (n = 8) . In group Ⅰ oral normal saline 1 ml, in group Ⅱ oral PAT 2 g/kg, in group Ⅲ oral PAT 2 g/kg + intraperitoneal nor-binaltorphimine (nor-BNI) 2 mg/kg, in group Ⅳ oral PAT 2 g/kg + intrathecal nor-BNI 100 ?g was administered 14 days after CCI. As indicators of mechanical and heat hyperalgesia, the paw withdrawal pressure threshold (PWPT) in response to a graded pressure stimulus with a filament and the paw withdrawal latency (PWL) in response to radiant heat were measured in both hind paws before and after drugs administration.Results In part Ⅰ, in group Ⅲ-Ⅴ PWL was prolonged significantly and in group Ⅳ - Ⅴ PWPT were significantly increased compared with those in group I . There was no significant difference in PWL and PWPT between group Ⅰ and group Ⅱ . In part Ⅱ , in group Ⅲ, Ⅳ PWPT and PWL were significantly lower than those in group Ⅱ . There was no significantly difference in PWL and PWPT between group Ⅰ and group Ⅲ, Ⅳ . Conclusion In rat with neuropathic pain processed Aconiti tuber exerts analgesic effect via the spinal ?-opioid receptor activation.

Objective:To understand the genome characteristics of group A rotavirus (RVA) strains among hospitalized children under 5 years of age with acute diarrhea in Fuzhou sentinel hospital in 2020.Methods:The ELISA method was used for screening RVA-positive stool samples of hospitalized children under 5 years of age, then 11 gene segments of RVA-positive samples were sequenced and typed after amplification by RT-PCR, and their homology and phylogenetic analysis were performed by Molecular Evolutionary Genetics Analysis (MEGA).Results:Twenty RVA whole genome sequences were successfully obtained, including 4 kinds of G/P gene combinations-G9P[8] (55%), G3P[8] (25%), G8P[8] (15%) and G2P[4] (5%). DS-1-like reassortant strains accounted for 40% of the whole genomes. Strains of the same type have high sequence homology, are closely related to the virus strains that currently circulating in the world. There are mutations at multiple important antigenic sites on VP7, VP4 and NSP4 fragments. The variation of amino acid substitutions of VP7, VP4 and NSP4 fragments is complicated, and there are many amino acid substitutions in the antigenic regions.Conclusions:G3P[8] and G8P[8] DS-1-like reassortants were detected for the first time in Fuzhou, amino acid substitutions were observed in the antigenic regions of the VP7, VP4 and NSP4 gene. Due to the emergence of uncommon DS-1-like reassortant strains and multiple important antigenic regions substitutions, it is necessary to continuously monitoring genome characteristics of RVA strains to provide scientific evidence for the pandemic prevention and vaccine immunization strategies.