Determination of Total Flavonoids in Acanthopanax senticosus(Rupr. et Maxim.) Harms by Enzymolysis and Its Technological Optimization

In order to optimize the ultrasonic extraction technique for the total flavonoid of leaf yellows plus, the contents of 21 leaf yellows plus total flavonoid from four regions in Heilongjiang Province were comparatively analyzed. The ultrasonic extraction technology was optimized by Box-Behnken response surface method, and the total flavonoid content of 21 kinds of Acanthopanax senticosus(Rupr. et Maxim.) Harms from different producing areas were analyzed by cluster analysis. The optimal process conditions were determined as ultrasonic time 30 min, solid-liquid ratio 1 : 12 and ultrasonic power 250 W, and the average yield of the total flavonoid was 1.453 mg·g^ (-1). By optimizing the ultrasonic-assisted extraction method, the total flavonoid content from different producing areas was compared in the experiment, which provided certain data support for the optimization of the extraction process in the future and laid a certain theoretical foundation for the quality analysis of Chinese medicinal materials.

Use of a rat model to characterize 35 arterial pulse wave parameters in a comparative study of isoflurane and Zoletil/ xylazine anesthesia and the effect of Acanthopanax senticosus extract

Background : Information obtained from arterial pulse waveforms (APW) can be usefulfor characterizing the cardiovascular system. To achieve this, it is necessary to know thedetailed characteristics of APWs in different states of an organism, which would allowAPW parameters (APW- Ps) to be assigned to particular (patho)physiological conditions.Therefore, our work aimed to characterize 35 APW- Ps in rats under the influence ofisoflurane (ISO) and Zoletil/xylazine (ZO/XY) anesthesia and to study the effect of rootextract from Acanthopanax senticosus (ASRE) in these anesthetic conditions.Methods : The right jugular vein of anesthetized rats was cannulated for the administrationof ASRE and the left carotid artery for the detection of APWs from which 35APW- Ps were evaluated.Results : We obtained data on 35 APW- Ps, which significantly depended on the anesthesia,and thus, they characterized the cardiovascular system under these two conditions.ASRE transiently modulated all 35 APW- Ps, including a transient decrease insystolic and diastolic blood pressure (BP) and heart rate or increases in pulse BP, d P /d t max , and systolic and diastolic areas. Whereas the transient effects of ASRE weresimilar, the extract had prolonged disturbing effects on the cardiovascular system inrats under ZO/XY but not under ISO anesthesia. This negative effect can result fromthe disturbance caused by ZO/XY anesthesia on the cardiovascular system.Conclusions : We characterized 35 APW- Ps of rats under ISO and ZO/XY anesthesiaand found that ASRE contains compounds that can modulate the properties of thecardiovascular system, which significantly depended on the status of the cardiovascularsystem. This should be considered when using ASRE as a nutritional supplementby individuals with cardiovascular problems.

Acanthopanax senticosus polysaccharides-induced intestinal tight junction injury alleviation via inhibition of NF-κB/MLCK pathway in a mouse endotoxemia model

AIM To examine the effects of Acanthopanax senticosus polysaccharides(ASPS) on intestinal tight junction(TJ) disruption and nuclear factor-kappa B(NF-κB)/myosin light chain kinase(MLCK) activation in endotoxemia.METHODS BALB/C mice(6-8-weeks-old) received continuous intragastric gavage of ASPS for 7 d before injection of lipopolysaccharide(LPS), or received ASPS once after LPS injection. Blood and intestinal mucosal samples were collected 6 h after LPS challenge. Clinical symptoms, histological injury, intestinal permeability,TJ ultrastructure, and TJ protein expression were determined.RESULTS Compared with mice in the LPS group, pretreatment with ASPS improved clinical and histological scores by 390.9%(P < 0.05) and 57.89%(P < 0.05), respectively, and gut permeability change in endotoxemic mice was shown by a 61.93% reduction in reduced leakage of fluorescein isothiocyanate-dextran 6 h after LPS injection(P < 0.05). ASPS pretreatment also prevented LPS-induced TJ ultrastructure breakdown supported by increased electron dense materials between adjoining cells, sustained redistribution and expression of occludin(0.597 ± 0.027 vs 0.103 ± 0.009, P < 0.05) and zonula occludens-1(0.507 ± 0.032 vs 0.125 ± 0.019, P < 0.05), and suppressed activation of the NF-κB/MLCK pathway indicated by reduced expression of NF-κB, phospho-inhibitor kappa B-alpha, MLCK and phospho-myosin light-chain-2 by 16.06%(P < 0.05), 54.31%(P < 0.05), 66.10%(P < 0.05) and 64.82%(P < 0.05), respectively. CONCLUSION ASPS pretreatment may be associated with inhibition of the NF-κB/MLCK pathway and concomitant amelioration of LPS-induced TJ dysfunction of intestinal epithelium in endotoxemia.

Quantitative analysis of endangered Acanthopanax senticosus communities in Dongling Mountain of Beijing

Based on the survey of community plots,a quantitative analysis of endangered Acanthopanax senticosus communities in Dongling Mountain was performed with two way indicator species analysis(TWINSPAN),detrended correspondence analysis(DCA)and canonical correspondence analysis(CCA).The communities of A.senticosus were classified into 9 types by TWINSPAN and the results were validated by DCA.On the DCA graph,the first axis reflected the gradient of altitude and the second axis reflected the aspect and slope.Most of A.senticosus were distributed in the thick forests at a high altitude with little light.With the exception of being a dominant species of shrub layers in a few communities,A.senticosus has a relatively scarce distribution.In accordance with DCA,the results of CCA also show the trend that the distribution of A.senticosus communities varied along with the gradient change of environmental factors.Altitude and light are the main factors affecting A.senticosus growth.

Potential mechanism of Shugan Jieyu capsule in the treatment of hepatitis B based on network pharmacology

Objective:In this study,the effective components and related targets of Shugan Jieyu Capsule(SGJY)in the treatment of hepatitis B were determined to explore the mechanism of SGJY in the treatment of hepatitis B.Methods:In this study,the effective components and targets of SGJY,and the related targets of hepatitis B were searched,and obtained the targets of SGJY in the treatment of hepatitis B according to the principle of Venn diagram.To build a protein-protein interaction network,String database was used,Cytoscape(3.7.2)software was used for topology analysis,R(4.0.5)software was used for go analysis,KEGG pathway enrichment analysis,and study of putative signaling pathways to determine how they could work.Results:SZJY was used to predict a total of 11 Chinese herbal components and 85 associated targets for the treatment of hepatitis B.34 important targets were examined,including AKT1,EGFR,and 10 important pathways were examined,including proteoglycans in cancer and the PI3K/Akt signaling pathway.Conclusion:SGJY in the treatment of hepatitis B mainly inhibits the secretion of HBsAg and HBeAg by affecting PI3K-Akt and proteoglycans in cancer,and inhibits the progression of liver cancer.

刺五加扦插育苗技术

为探索刺五加(Acanthopanax senticosus)扦插育苗技术,对刺五加不同激素种类及其配比、不同基质对插穗生根的影响进行试验。结果表明,NAA浓度为50 mg/L、浸泡时间为1 h的生根率最高可达85.6%,平均生根数为11.2条,平均根长为4.7 cm。选用河沙+珍珠岩+腐殖质作为基质,可促进插穗生根。

刺五加嫩枝扦插插穗处理

为了提高刺五加(Acanthopanax senticosus)扦插生根率,就刺五加不同成熟度插穗、不同剪切方式、插穗上芽保留数量以及绿叶保留数量进行了试验。结果表明,当年生半木质化枝条的生根率为45.6%,生根所需时间比当年生木质化枝条生根时间提早9 d。插穗剪成15 cm一段,每段保证有2~3个芽,基部两面斜切成楔形,保留2片叶,每片叶片保留1/3~1/2,对刺五加插穗生根指标效果最佳,生根率最高可达85.4%。