1.Effect of penehyclidine hydrochloride pretreatment on activity of NF-κB in lung tissue following acute lung injury induced by hemorrhagic shock in rats
Chinese Journal of Anesthesiology 2010;30(4):497-499
Objective To investigate the effect of pretreatment with penehychidine hydrochloride(PHCD) on NF-κB activity in the lung tissue following acute lung injury(ALI)induced by hemorrhagic shock in rats.Methods Twenty-four Wistar rats of both sexes weighing 200-250 g were randomly divided into 3 groups (n=8 each):group Ⅰ sham operation (group S);group Ⅱ ALI and group Ⅲ PHCD.The animals were anesthetized with intraperitoneal chloral hydrate 350 mg/kg.Hemorrhagic shock was produced in group Ⅱ and Ⅲ.Right carotid artery was cannulated for BP monitoring.Left femoral artery was cannulated for blood letting.MAP was reduced to 35-45 mm Hg within 10 min and maintained for 1 h in group ALI and PHCD(group Ⅱ andⅢ).The animals were then resuscitated with blood and normal saline.PHCD 2 mg/kg was given iv immediately before blood-letting in group PHCD.Blood samples were obtained from artery at 6 h after hemorrhagic shock wag induced for blood gas analysis and from right auricle for determination of plasma TNF-α concentration by ELISA.The lungs were then harvested for microscopic examination and determination of the expression of NF-κB p65 by immuno-histochemistry and W/D lung weight ratio.Results The plasma TNF-α concentration and expression of NF-κB p65 in the lung tissue were significantly increased in group ALI and PHCD as compared with group S and were significantly lower in group PHCD than in group ALI.There was less damage to the lung tissue in group PHCD than in group ALI.Conclusion PHCD pretreatment can attenuate ALl induced by hemorrhagic shock by inhibiting NF-κB activity.
2.Treatment of patients with acute arsine poisoning
Yaguo SONG ; Fengtong HAO ; Dixin WANG ; Huiling LI ;
Chinese Journal of Emergency Medicine 2006;0(09):-
Objective To study the characteristics of patients with acute arsine poisoning and its possible treatments. Methods The only use of drugs,or drugs with plasma exchange(PE)were used to treat 36 patients with acute arsine poisoning.The blood haemolysis,enzymes of creatinc kinase(CK),lactate dehydrogenase(LDH),alkaline phosphatase (ALP),alanine aminotransferase(ALT),aspartate aminotransferase(AST),?-hydroxybutyric dehydrogenase(HHBD), total bihrubin(TBIL),indirect bilirubin(IBIL),direct bilirubin(DBIL),blood urea nitrogen(BUN),serum creatinine (Cr)were observed.Results There was an exposure time-effect relation in clinical characteristics,and a linear correlation between the concentrations of arsenic in blood and urine(r=0.718,P=0.019),but no significant correlations were found between the concentrations of arsenic in blood or urine with CK,LDH,ALP,ALT,AST,HHBD,TBIL,IBIL, DBIL,BUN,Cr(P>0.05).In patients with severe acute arsine poisoning,PE quickly controlled hemolysis within 24 hours,and prevented secondary damage in kidney and other organs,oliguria stage got much shorter,and CK,LDH,ALP, AST,HHBD,TBIL,IBIL,BUN significantly reduced at 24 to 72 hours after PE treatment(P<0.05).Conclusions The only use of drug was enough for the treatment of mild acute arsine poisoning.To the patients with severe acute arsine poisoning,PE may be an effective method to control its blood hemolysis and prevent complications,which should be taken as early as possible.
3.Angiogenesis of dermal scaffold transplantation zone promoted by moboilizing endothelial progenitor cells
Wei ZHANG ; Dixin CAI ; Hong WANG ; Yongcui ZHU
Chinese Journal of Tissue Engineering Research 2013;(24):4386-4393
10.3969/j.issn.2095-4344.2013.24.003
4.Study on HPLC Fingerprints of Stephania kwangsiensis in Guangxi
Qiujie HUANG ; Yong YE ; Jie WANG ; Zhiping WANG ; Wei WEI ; Dan LI ; Dixin ZHU
China Pharmacy 2017;28(27):3856-3858
OBJECTIVE:To establish HPLC fmgerprints of Stephania kwangsiensis.METHODS:HPLC method was adopted.The determination was performed on Hypersil ODS2 with mobile phase consisted of acetonitrile-0.5% phosphoric acid (gradient elution) at the flow rate of 1.0 mL/min.The detection wavelength was set at 282 nm,and column temperature was 30 ℃.The sample size was 10 μL.Using tetrahydropalmatine as reference,HPLC fingerprints of 10 batches of medicinal materials were determined.Common peak identification and similarity evaluation were conducted by using Similarity Evaluation System of TCM Chromatographic Fingerprint (2012 edition).RESULTS:A total of 17 common peaks were identified in HPLC fingerprints of 10 batches of S.kwangsiensis.Among 10 batches of samples,fingerprint of samples from 8 producing areas were compared with control chromatogram.The similarity was higher than 0.900.The similaritg of samples from 2 producing areas were lower than 0.900.CONCLUSIONS:Established HPLC fingerprint can provide reference for the identification and quality evaluation of S.kwangsiensis;S.kwangsiensis in Guangxi from most producing areas include similar alkaloid components,but samples from other producing areas are different from them.
5.Quality evaluation of Xin ’an capsules by combination of fingerprint ,multi-component quantitative analysis and chemical pattern recognition analysis
Yanrong LI ; Yilong DU ; Ying SHEN ; Zhe WU ; Dixin WANG ; Shengnan ZHAO ; Haifeng PAN
China Pharmacy 2022;33(6):706-712
OBJE CTIVE To establish a method for quality evaluation of Xin ’an capsule by combining fingerprint , multi-component quantitative analysis and chemical pattern recognition analysis. METHODS High performance liquid chromatography(HPLC)combined with Similarity Evaluation System of TCM Chromatogram Fingerprint (2012 edition)were used to establish the fingerprints of 24 batches of Xin ’an capsules and evaluate the similarity. The common peaks were determined. The contents of glucosylvitexin ,rhamnosylvitexin,vitexin,hyperoside and isoquercetin in Xin ’an capsules were determined by the same HPLC method. Taking the common peak area of fingerprint as the variable ,MetaboAnalyst 5.0 tool was used to draw the cluster analysis (CA)heat map. SIMCA 14.1 software was used to perform principle component analysis (PCA)and partial least squares-discriminant analysis (PLS-DA). RESULTS Twelve common peaks were identified with the similarity greater than 0.97. Six common peaks were identified as chlorogenic acid ,glucosylvitexin,rhamnosylvitexin,vitexin,hyperoside and isoquercetin.The linear range of glucosylvitexin ,rhamnosylvitexin,vitexin, hyperoside and isoquercetin were 2.36-151.35,9.15-585.20, 1.20-76.50, 0.68-43.20, 0.44-27.90 µg/mL(all r>0.999).RSDs of precision ,repeatability and stability (24 h)tests were 163.com all less than 2.00% . The average recoveries were 95.80%(RSD=0.96% ,n=6),102.10% (RSD=0.93% ,n=6), 103.26%(RSD=1.28%,n=6),103.89%(RSD=0.73%,n=6) and 102.09%(RSD=1.79%,n=6),respectively. The contents of the five components were 0.988 8-1.559 1,4.336 6-11.220 1, 0.065 1-0.830 5,0.043 8-0.692 5 and 0.023 2-0.427 2 mg/grain,respectively. The results of CA and PCA showed that 24 batches of samples could be divided into three categories ,i.e. S 1-S15,S16-S18 and S 19-S24. PLS-DA showed that variable importance in projection values of the corresponding component of peak 6 and glucosylvitexin (peak 7),rhamnosylvitexin(peak 8),hyperoside (peak 10) and isoquercetin (peak 11) were greater than 1. CONCLUSIONS The established HPLC fingerprint and multi-component quantitative method are simple and feasible. Combined with chemical pattern recognition analysis ,it can be used for the quality control of Xin ’an capsules. Glucosylvitexin ,rhamnosylvitexin and other components may be differentital markers affecting the quality of each batch of samples.
6.Transcriptomic Analysis of Wuzi Yanzongwan on Testicular Spermatogenic Function in Semi-castrated Male Mice
Dixin ZOU ; Yueyang ZHANG ; Xuedan MENG ; Wei LU ; Shuang LYU ; Fanjun ZENG ; Kun CHEN ; Chang LIU ; Zhongxiu ZHANG ; Yu DUAN ; Yihang DAI ; Zhaoyi WANG ; Zhimin WANG ; Ruichao LIN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(1):61-69
ObjectiveTo screen out the transcriptomes related to the intervention of Wuzi Yanzongwan on the spermatogenic function of semi-castrated male mice, and to explore its potential mechanism in the intervention of the progress of low spermatogenic function. MethodBalb/c mice were randomly divided into sham-operated group, model group, testosterone propionate group(0.2 mg·kg-1·d-1, intramuscular injection) and Wuzi Yanzongwan group(1.56 g·kg-1·d-1, intragastric administration) according to body weight, with 12 mice in each group. The right testicle and epididymis were extracted from the model group and the drug administration group to construct the semi-castrated model of low spermatogenic function, while the fur and the right scrotum of the sham-operated group were only cut and immediately sterilized and sutured. At the end of the intervention, hematoxylin-eosin(HE) staining was used to observe the histopathology of testis, enzyme-linked immunosorbent assay(ELISA) was used to detect the levels of serum testosterone(T), luteinizing hormone(LH) and follicle stimulating hormone(FSH). The sperm count and motility of epididymis were measured by automatic sperm detector of small animal. Transcriptomic microarray technology was used to detect the mRNA expression level of testicular tissue in each group, the transcriptome of genes related to the regulation of Wuzi Yanzongwan was screened, and three mRNAs were selected for Real-time fluorescence quantitative polymerase chain reaction(Real-time PCR) to verify the transcriptome data. Through the annotation analysis of Gene Ontology(GO) and the signaling pathway analysis of Kyoto Encyclopedia of Genes and Genomes(KEGG), the related functions of drugs regulating transcriptome were analyzed. ResultCompared with the sham-operated group, the testicular tissue of mice in the model group showed spermatogenic injury, contraction and vacuolization of the seminiferous tubules, reduction of spermatogenic cells at all levels, widening of the interstitial space, obstruction of spermatogonial cell development and other morphological abnormalities, and serum T significantly decreased, LH significantly increased(P<0.01), and FSH elevated but no statistically significant difference, the count and vitality of epididymal sperm significantly decreased(P<0.01). There were 882 differentially expressed mRNAs in the testicular tissues, of which 565 were up-regulated and 317 were down-regulated. Cluster analysis showed that these differentially expressed mRNA could effectively distinguish between the sham-operated group and the model group. Compared with the model group, the damage to testicular tissue in the Wuzi Yanzongwan group was reduced, the structure of the seminiferous tubules was intact, vacuolization was reduced, and the number of spermatogenic cells at all levels was significantly increased and arranged tightly. The serum T significantly increased, LH significantly decreased(P<0.01), and FSH decreased but the difference was not statistically significant. The count and vitality of sperm in the epididymis were significantly increased(P<0.01). Moreover, Wuzi Yanzongwan could regulate 159 mRNA levels in the testes of semi-castrated mice, of which 32 were up-regulated and 127 were down-regulated, and the data of the transcriptome assay was verified to be reliable by Real-time PCR. GO and KEGG analysis showed that the transcriptome functions regulated by Wuzi Yanzongwan were involved in the whole cell cycle process of sperm development such as sex hormone production of interstitial cells in testis, renewal, differentiation, metabolism, apoptosis and signal transduction of spermatogenic cells, and were closely related to the biological behaviors of signaling pathways such as spermatogenic stem cell function, endoplasmic reticulum protein processing and metabolic program. ConclusionWuzi Yanzongwan can effectively improve the low spermatogenic function of semi-castrated male mice, and its mechanism may be related to the regulation of testicular transcriptional regulatory network, the synthesis of sex hormones in testicular interstitial cells, the function of spermatogenic stem cells, the whole cell cycle process of spermatogenesis, as well as the expression of endoplasmic reticulum protein processing and metabolic program related genes transcription.