Objective:To explore the effective active components of Qi Bi Anshen decoction(QAT)in the treatment of autism spectrum disorder(ASD)and its effects on ASD behaviors and related lipid metabolism abnormalities.Methods:24 adult male Sprague-Dawley rats were randomly divided into 3 groups:Control group,PPA group and PPA+QAT group.The ASD rat model was established by intracerebroventricular injection of propionic acid,and the QAT administration group was given intragastric administration for 7 days.Behavioral tests were conducted to detect the so-cial,repetitive stereotyped and anxiety-like behaviors of rats.UPLC-MS was used to analyze the differential metabolites and enriched pathways of rats.Network pharmacology was used to screen the effective active monomer components of QAT involved in regulating ASD.10 sexually mature C57BL/6J mice were randomly paired in male-female cages.The ASD mouse model was established by a single intraperitoneal injection of sodium valproate to pregnant mice.The preg-nant mice were randomly divided into 3 groups:Control group,VPA group and VPA+QUE group.The administration group was given QUE in the drinking water of pregnant mice until the end of the perinatal period.Behavioral tests were conducted to detect ASD-like behaviors in mice.Reagent kits were used to detect the contents of alkaline phosphatase(AKP),alanine aminotransferase(ALT),aspartate aminotransferase(AST),triglycerides(TG)and total cholesterol(TC)in the liver and serum of mice.Oil red O staining was used to observe the morphology of liver cells.Results:QAT administration could improve the ASD-like behaviors induced by PPA(P＜0.05).UPLC-MS analysis showed that the differential metabolites of each group of rats were mainly enriched in lipid metabolism pathways.Network pharmacol-ogy screening identified QUE as the effective active monomer component.QUE administration could improve the ASD-like behaviors induced by VPA(P＜0.05).QUE administration could reverse the abnormal changes in AKP,TC and TG in the liver induced by VPA(P＜0.05)and reduce lipid droplet deposition in the liver.Conclusion:The active monomer component QUE in QAT has therapeutic effects on ASD behaviors and related liver lipid metabolism abnormali-ties.

Objective:To explore the effective active components of Qi Bi Anshen decoction(QAT)in the treatment of autism spectrum disorder(ASD)and its effects on ASD behaviors and related lipid metabolism abnormalities.Methods:24 adult male Sprague-Dawley rats were randomly divided into 3 groups:Control group,PPA group and PPA+QAT group.The ASD rat model was established by intracerebroventricular injection of propionic acid,and the QAT administration group was given intragastric administration for 7 days.Behavioral tests were conducted to detect the so-cial,repetitive stereotyped and anxiety-like behaviors of rats.UPLC-MS was used to analyze the differential metabolites and enriched pathways of rats.Network pharmacology was used to screen the effective active monomer components of QAT involved in regulating ASD.10 sexually mature C57BL/6J mice were randomly paired in male-female cages.The ASD mouse model was established by a single intraperitoneal injection of sodium valproate to pregnant mice.The preg-nant mice were randomly divided into 3 groups:Control group,VPA group and VPA+QUE group.The administration group was given QUE in the drinking water of pregnant mice until the end of the perinatal period.Behavioral tests were conducted to detect ASD-like behaviors in mice.Reagent kits were used to detect the contents of alkaline phosphatase(AKP),alanine aminotransferase(ALT),aspartate aminotransferase(AST),triglycerides(TG)and total cholesterol(TC)in the liver and serum of mice.Oil red O staining was used to observe the morphology of liver cells.Results:QAT administration could improve the ASD-like behaviors induced by PPA(P＜0.05).UPLC-MS analysis showed that the differential metabolites of each group of rats were mainly enriched in lipid metabolism pathways.Network pharmacol-ogy screening identified QUE as the effective active monomer component.QUE administration could improve the ASD-like behaviors induced by VPA(P＜0.05).QUE administration could reverse the abnormal changes in AKP,TC and TG in the liver induced by VPA(P＜0.05)and reduce lipid droplet deposition in the liver.Conclusion:The active monomer component QUE in QAT has therapeutic effects on ASD behaviors and related liver lipid metabolism abnormali-ties.

Culture and purification, identification by matrix-assisted laser desorption/ionization time-of-flight mass spectrometer and biochemical assay, drug sensitive test, resistance gene detection and multilocus sequence typing were conducted for 4 strains of serotype 2 Streptococcus suis isolated from clinical specimens in 2021, Hainan Province. The results showed that Strain 1 and Strain 2 were ST7 type, Strain 3 was ST1 type, and Strain 4 was ST2302 type. The strains are sensitive to levofloxacin, penicillin, meropenem, linezolid, ceftriaxone, cefepime, and daptomycin. Three strains are resistant to tetracycline, erythromycin, and azithromycin, two strains are resistant to clindamycin and ampicillin, and one strain is resistant to chloramphenicol and vancomycin. There may be sources of Streptococcus suis infection in multiple regions of Hainan Province, and the ST molecular typing of Streptococcus suis is diverse.