1.Comparison of Wild and Cultivated Bupleurum scorzonerifolium Based on Traditional Quality Evaluation
Changsheng YUAN ; Feng ZHOU ; Xingyu LIU ; Yu SHI ; Yihan WANG ; Huaizhu LI ; Yongliang LI ; Shan GUAN ; Huaizhong GAO ; Yanmeng LIU ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):203-214
ObjectiveTo characterize the quality differences among different germplasm and introduced varieties of Bupleurum scorzonerifolium roots(BSR), and explore the underlying molecular mechanisms, providing a basis for high-quality production and quality control. MethodsWild BSR from Yulin(YLW) served as the quality reference, we conducted comparative analysis among YLW, locally domesticated wild germplasm in Yulin(YLC3), Daqing germplasm introduced and cultivated in Yulin(YLDQC3), and locally cultivated germplasm in Daqing(DQC3). A combination of traditional pharmacognostic methods and modern multi-omics analyses was employed, including macroscopic traits(appearance, odor), microscopic features(proportions of cork, phloem, xylem), cell wall component contents(hemicellulose, cellulose, lignin), carbohydrate contents(starch, water-soluble polysaccharides), marker compound contents(ethanol-soluble extracts, total saponins, liposoluble extracts, and saikosaponins A, B2, C, D), metabolomics, and transcriptomics, in order to systematically characterize quality differences and investigate molecular mechanisms among these samples. ResultsMacroscopically, Yulin-produced BSR(YLW, YLC3, YLDQC3) exhibited significantly greater weight, length, and upper and middle diameters than Daqing-produced BSR(DQC3). Odor-wise, YLW and YLC3 had a a fragrance taste, YLDQC3 had a rancid oil odor, and DQC3 had a sweet and fragrant taste. Microscopically, Yulin germplasm(YLW, YLC3) and Daqing germplasm(YLDQC3, DQC3) shared similar structural features, respectively. However, Yulin germplasm showed significantly higher proportions of cork and phloem, as well as stronger xylem vessel staining intensity compared to Daqing germplasm. Regarding various component contents, Yulin germplasm contained significantly higher levels of ethanol-soluble extracts, total saponins, and saikosaponins A, B2, C, D, while Daqing germplasm had significantly higher levels of hemicellulose, starch, and liposoluble extracts. After introduction to Yulin, the Daqing germplasm(YLDQC3) showed increased starch, water-soluble polysaccharides and liposoluble extracts contents, decreased cell wall component content, but no significant difference in other component contents. Metabolomics revealed that saponins and terpenes accumulated significantly in Yulin germplasm, while alcohols and aldehydes accumulated predominantly in Daqing germplasm. Transcriptomics indicated similar gene expression patterns within the same germplasm but specificity between different germplasms. Integrative metabolomic-transcriptomic analysis identified 145 potential key genes associated with the saikosaponin biosynthesis pathway, including one acetyl-coenzyme A(CoA) acetyltransferase gene(ACAT), one 3-hydroxy-3-methylglutaryl-coenzyme A synthase gene(HMGS), two hydroxymethylglutaryl-CoA(HMG-CoA) reductase genes(HMG), one phosphomevalonate kinase gene(PMK), one 1-deoxy-D-xylose-5-phosphate synthase gene(CLA), one hydroxymethylbuten-1-aldol synthase gene(HDR), two farnesyl pyrophosphate synthase genes(FPPS), one squalene synthase gene(SQS), one β-amyrin synthase gene(BAS), 102 cytochrome P450(CYP450) gene family members, and 32 uridine diphosphate-glucuronosyltransferase(UGT) gene family members. ConclusionAmong the three cultivated types, YLC3 most closely resembles YLW in appearance, microscopic features, contents of major bioactive constituents, metabolomic and transcriptomic profiles. Yulin germplasm exhibits superior saponin synthesis capability compared to Daqing germplasm, and Yulin region is more suitable for the growth of B. scorzonerifolium. Based on these findings, it is recommended that artificial cultivation in northern Shaanxi and similar regions utilize the local Yulin germplasm source cultivated for at least three years.
2.Comparison of Wild and Cultivated Polygalae Radix Based on Traditional Quality Evaluation
Yihan WANG ; Yanmeng LIU ; Huaizhu LI ; Yongliang LI ; Shan GUAN ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):215-224
ObjectiveBased on the traditional quality evaluation methods summarized in previous dynasties, this paper systematically contrasted the quality differences between wild Polygalae Radix(WPR) and cultivated Polygalae Radix(CPR) from the aspects of character, microscope and chemical composition by modern scientific and technological means, providing a basis for high-quality production and quality control. MethodsCPR and local WPR in Yulin city, Shaanxi province from 1 to 6 years were collected, and a systematic comparative analysis was conducted using traditional pharmacognosy research methods combined with modern multi-omics analysis techniques, including character traits(length, weight, diameter), cross-sectional microscopic features(proportions of cork, phloem, xylem, etc), cell wall component content(hemicellulose, cellulose, lignin), extracts content(water-soluble extract and alcohol-soluble extract), carbohydrate content(starch, water-soluble polysaccharides), contents of total flavonoids, total saponins and specific marker compounds(3,6′-disinapoyl sucrose, polygalaxanthone Ⅲ, tenuifoliside A, tenuifoliside C, sibiricose A5 and A6) and other indexes. Ultra-high performance liquid chromatography-quadrupole-time-of-flight mass spectrometry(UPLC-Q-TOF-MS) was employed to conduct comparative analysis of secondary metabolites in WPR and CPR, and multivariate statistical analysis such as principal component analysis(PCA) and orthogonal partial least squares-discriminant analysis(OPLS-DA) were combined to screen the key differential components of them. ResultsIn terms of appearance, there were significant differences between WPR and CPR. The characteristics of WPR conformed to the "thick wrinkles on the epidermis" recorded in ancient books, featuring a wrinkled surface and grayish-brown appearance. However, CPR had a finer texture and a yellowish white appearance, with weight, length, and diameter increasing with longer cultivation periods. In terms of microscopy, WPR exhibited a thick cork layer with fissures in the phloem, whereas CPR had a thinner cork layer with uniformly arranged cork cells. Younger PR specimens showed numerous phloem fissures in cross-sections, while older specimens display progressively denser arrangements of phloem parenchyma cells. In terms of the contents of various major components, the contents of water-soluble extract, starch and total saponins in WPR were inversely proportional to the root diameter, while the contents of water-soluble extract, water-soluble polysaccharides and total saponins in CPR decreased with the increase of planting years. The content of xanthones in WPR was significantly higher than that of CPR, while the contents of other major components showed no significant change pattern. Among the six indicator components, the average content of sibiricose A5 in WPR was significantly higher than that of CPR, followed by slightly higher content of tenuifoliside A. In CPR, the relative content of 3,6′-disinapoyl sucrose and tenuifoliside A was the highest. The former showed an increase in volatility with increasing cultivation years, while the latter showed a decrease in volatility. The results of differential compound analysis based on UPLC-Q-TOF-MS showed that there were significant differences in metabolites between WPR and CPR samples. Among them, the seven compounds with the largest differences among WPR samples of different thicknesses were polygalasaponins, and for CPR with different planting years, the main differential compounds were oligosaccharide esters. ConclusionThere are differences between WPR and CPR in character, microscopic structure and chemical composition, and some components are inversely proportional with the increase of diameter and cultivation duration due to the distribution characteristics. However, the longer the cultivation years of PR, the closer it is to the "thick wrinkles on the epidermis" of WPR, which has been respected by generations. It is suggested that this traditional character combined with modern component contents should be used as the index of artificial cultivation and quality control of PR.
3.DUSP26 inhibits proliferation, migration, and invasion of lung adenocarcinoma A549 cells by suppressing the TGF-β1/SMAD2/3 signaling pathway
LUO Fengheng ; WU Min ; ZHOU Shan ; XIAO Yanan ; ZHAN Zhiqiang
Chinese Journal of Cancer Biotherapy 2025;32(7):738-745
[摘 要] 目的:探究双特异性磷酸酶26(DUSP26)在肺腺癌(LUAD)A549细胞增殖、迁移和侵袭中的作用及其分子机制。方法:检索肿瘤数据库GEPIA2网站DUSP26表达数据,分析DUSP26在LUAD患者和正常人肺组织中的表达差异。收集2022年10月至2023年10月期间萍乡市人民医院手术切除的12例LUAD组织和癌旁组织标本,通过免疫组织化学(IHC)和WB法检测DUSP26在LUAD组织和癌旁组织之间的表达差异;通过WB法检测DUSP26在4种LUAD细胞(A549、SK-LU-1、Calu-3、H1299)和2种正常支气管上皮细胞(BEAS-2B、HBEC)中的表达差异。利用慢病毒转染细胞的方法构建稳定过表达DUSP26(DUSP26-OE)及阴性对照(DUSP26-OENC)的A549细胞,通过克隆形成、划痕愈合实验、Transwell实验分别检测DUSP26过表达对细胞增殖、迁移及侵袭能力的影响,WB法检测各组细胞中TGF-β1/SMAD2/3通路、EMT相关蛋白的表达水平,细胞免疫荧光法检测细胞中Ki-67、cyclin D1表达水平。加入TGF-β1重组蛋白进行回复实验。构建A549细胞裸鼠荷瘤模型,观察DUSP26过表达对移植瘤体内生长的影响,WB法检测移植瘤组织中TGF-β1/SMAD2/3通路、EMT相关蛋白表达水平,免疫荧光染色法检测移植瘤组织中Ki-67、cyclin D1表达水平。结果:DUSP26在LUAD组织和细胞中均呈低表达(P < 0.05或P < 0.01或P < 0.001或P < 0.000 1)。与DUSP26-OENC组相比,DUSP26-OE组A549细胞的增殖、迁移和侵袭能力均显著降低(P < 0.01或P < 0.001),TGF-β1、p-SMAD2/3、vimentin、N-cadherin、snail、Ki-67、cyclin D1表达均降低(P < 0.01或P < 0.001或P < 0.000 1),E-cadherin表达升高(P < 0.000 1)。加入5 ng/mL TGF-β1重组蛋白后,可部分逆转在体外实验中由DUSP26过表达导致的结果。成功构建裸鼠A549细胞荷瘤模型,DUSP26-OE组裸鼠移植瘤生长速度缓慢,体积和质量均减小(均P < 0.001),移植瘤组织中TGF-β1、p-SMAD2/3、vimentin、N-cadherin、snail、Ki-67、cyclin D1表达均降低(P < 0.01或P < 0.001),E-cadherin表达升高(P < 0.000 1)。结论:DUSP26在LUAD组织和细胞中均呈低表达状态,上调DUSP26的表达水平能够通过抑制TGF-β1/SMAD2/3信号通路抑制A549细胞的增殖、迁移和侵袭。
4.Study on the Correlation Between TCM Constitution and Body Composition in Patients with Overweight/Obesity
Jin-Chuan RAN ; Zhan-Yang TAN ; Wen-Shan SUN ; Hai-Bing CHEN ; Shen QU
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(3):539-544
Objective To study the traditional Chinese medicine(TCM)constitution characteristics of overweight/obese patients in Shanghai region and to investigate the correlation of TCM constitution with body composition.Methods Relevant data were collected from the patients with complete information of TCM constitution and human body composition analysis who visited the specialized outpatient clinic of acup-moxibustion catgut embedding therapy in the Department of Endocrinology,Shanghai Tenth People's Hospital from August 2020 to December 2022.The patients were divided into a normal body mass group(BMI<24 kg/m2),an overweight group(24 kg/m2≤BMI<28 kg/m2)and obesity group(BMI≥28 kg/m2),and then the distribution of TCM constitution types in the three groups of patients were analyzed.After that,the correlation between TCM constitution and body composition were explored with multiple regression analysis.Results(1)A total of 315 patients were included,of which 43 patients had normal body mass,85 patients were overweight and 187 patients were obese.(2)The TCM constitution types in descending order of the composition ratio in the normal body mass group and in the overweight group were spleen deficiency constitution,liver stagnation constitution,damp-heat constitution,yang deficiency constitution,and yin deficiency constitution,in the obese group were spleen deficiency constitution,yang deficiency constitution,damp-heat constitution,liver stagnation constitution,and yin deficiency constitution,and in the overweight/obese group were spleen deficiency constitution,damp-heat constitution,yang deficiency constitution,liver stagnation constitution,and yin deficiency constitution.No statistically significant differences of the distribution of TCM constitution types were shown between normal body bass population and overweight/obese population(P>0.05).In both normal body mass population and overweight/obese population,the single body constitution type was common,and biased constitution was rare,and there was no statistically significant difference when comparing between the two groups(P>0.05).(3)The results of multiple regression analysis showed that the basal metabolism of all patients was positively correlated with yang deficiency constitution and was negatively correlated with damp-heat constitution,and the differences were statistically significant(P<0.01).It is indicated that if the score of yang deficiency constitution rose by one point,the basal metabolism would increase by 0.54 kcal,and if the score of damp-heat constitution decreased by one point,the basal metabolism would decrease by 1.005 kcal.Conclusion In Shanghai region,obesity may be the main indication of the variation of the body constitution.In addition to spleen deficiency constitution,the proportions of yang deficiency constitution,damp-heat constitution and liver stagnation constitution are also higher in obese patients.In terms of the correlation between TCM constitution and body composition,basal metabolism is positively correlated with yang deficiency constitution and is negatively correlated with damp-heat constitution.Therefore,for the patients with yang deficiency constitution and damp-heat constitution,the influence of the basal metabolism level on the development of the disease should be taken into account.
5.Clinical characteristics and prognostic factors of young patients with sporadic rectal cancer liver metastasis
Yu GUAN ; Lei YANG ; Shi-Ru JIANG ; Wei-Dong DOU ; Jin-Gui WANG ; Shan-Wen CHEN ; Zhan-Bing LIU ; Ying-Chao WU
Medical Journal of Chinese People's Liberation Army 2024;49(1):23-30
Objective To identify the clinical characteristics and prognostic factors of young patients with sporadic rectal cancer liver metastasis(RCLM).Methods The clinical data of young RCLM patients at 45 years or under(n=40,as younger patient group)in Peking University First Hospital from January 2016 to January 2021 were reviewed,meanwhile,elder RCLM patient group were comprised of 82 patients older than 45-year-old in a 1:2 ratio.Proportions of categorical variables were compared between young patients and old patients.The clinicopathologic parameters were analyzed with univariate and multivariate Cox regression models and Kaplan-Meier method for demonstrating survival differences between the maximum diameter of liver metastasis and local therapy.Results One hundred and twenty-two RCLM patients were identified,the 1-,3-and 5-year survival rates of young patient group were 97.5%,47.5%,15.0%,those of elder patient group were 84.1%,26.8%,9.8%,respectively.The differences in BMI(P=0.008),primary tumor with obstruction and bleeding(P=0.006),synchronous rectal cancer liver metastases(P=0.005),the maximum diameter of liver metastasis>3 cm(P=0.019)were statistically significant between the two groups.And univariate and multivariate analyses showed that age(P=0.003),N stage(P=0.007),local therapy for liver metastases(P=0.047)and the maximum diameter of liver metastasis(P=0.030)were independent risk factors for influencing the prognosis of RCLM patients;curative resection or not of primary tumor(P=0.035)and the maximum diameter of liver metastasis(P=0.041)were independent risk factors for influencing the prognosis of young RCLM patients.Kaplan-Maier curve demonstrated survival differences between the maximum diameter of liver metastasis and local therapy for liver metastasis in RCLM patients(log-rank P=0.000).Conclusions Although with later staging of initial tumor station,young RCLM patients may obtain better survival benefit compared with old patients.Higher degree of lymph node metastasis,local therapy for liver metastases and the maximum diameter of liver metastasis>3 cm indicates poor prognosis in RCLM patients,and without curative resection of primary tumor and maximum diameter of liver metastasis are also considered as the independent poor prognostic factors of young RCLM patients.Local therapy for liver metastases appears to play an important role in the treatment strategy of RCLM patients.
6.Development of self-care scale for patients with lymphedema after breast cancer surgery and verification of its reliability and validity
Weiwei WANG ; Jiaohua YU ; Yuxin ZHAN ; Yu MA ; Yuanyu LIAO ; Ting CHEN ; Huimin ZHOU ; Di CHENG ; Shan LIU
Modern Clinical Nursing 2024;23(2):1-10
Objective To develop a self-care scale for patients with lymphedema after breast cancer surgery and verify its reliability and validity.Methods Based on the model of knowledge,belief and practice,a questionnaire item pool was constructed after literature reviews and qualitative interviews.A questionnaire-based scale was drafted based on the established item pool by carrying out two rounds of consultation with 15 clinical nursing specialists,nursing administrators and nursing educators from 8 provinces or cities in China.Reliability and validity of the scale were tested using convenience sampling,involving 444 patients with breast cancer surgery related lymphedema from 7 general hospitals in Hubei and Henan provinces,China,between May and July 2023.Results The response rates for the two rounds of expert consultation were 93.75%and 93.33%,respectively.The authority coefficients of the two rounds were 0.86 and 0.89,respectively,and the coordination coefficients for the 2 rounds were 0.130 and 0.379,respectively.In the first round,the average importance rating was from 4.33 to 4.93 with the coefficient of variation from 0.05 to 0.19,and the full score ratio from 53.33%to 93.33%.In the second round,the average importance rating ranged from 2.86 to 4.93 with the coefficient of variation from 0.05 to 0.36,and the full score ratios from 7.14%to 92.86%.A total of 421 patients completed the survey.The overall Cronbach's α coefficient of the scale was 0.943,the overall split-half reliability was 0.824,the scale-level content validity index(S-CVI)was 0.912,and the item-level content validity index(I-CVI)of the total scale ranged from 0.857 to 1.000.The KMO value of exploratory factor analysis was 0.919,the Bartrett spherical test value was 4671.724(P<0.001),and the cumulative variance contribution rate was 64.155%.Confirmatory factor analysis showed a good model fit.After the reliability and validity tests,the scale was finalised and determined to consist of three dimensions with 33 items:knowledge(9 items),attitude(6 items)and behaviour(18 items).Conclusion The self-care scale for the patients with lymphedema after breast cancer surgery has demonstrated good reliability and validity,and makes it an effective assessment tool for the patients with lymphedema after breast cancer surgery.
7.Effect of Tongsheng Prescription on Trimethylamine N-Oxide and Related Metabolites Substrate in Patients with Acute Cerebral Infarction After Intervention and Its Efficacy Evaluation
Bin LIAO ; Hui-Shan ZHU ; Jing-Ling ZHU ; Wei-Min NING ; Zhan ZHAO
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(9):2232-2238
Objective To investigate the effect of Tongsheng Prescription on trimethylamine N-oxide(TMAO)and related metabolites substrate in patients with acute cerebral infarction after intervention and to evaluate its clinical efficacy.Methods A prospective randomized controlled study was conducted in 48 patients with acute ischemic stroke with large vessel occlusion(AIS-LVO)who had received endovascular treatment(EVT).The patients were divided into an observation group(25 cases)and a control group(23 cases).After emergency EVT,the control group was treated with routine western medicine,and the observation group was treated with nasogastric feeding or oral use of Tongsheng Prescription on the basis of treatment for the control group.The course of treatment lasted for seven days,and then the patients were followed up for three months.Before operation,7 days and 90 days after operation,National Institutes of Health Stroke Scale(NIHSS)scores in the two groups were observed.The functional prognosis evaluated with Modified Rankin Scale(MRS)scores was compared between the two groups,and the effects of Tongsheng Prescription on serum TM AO and related metabolites choline,betaine and L-carnitine were investigated.Results(1)On the postoperative day 7 and 90,the NIHSS scores of the two groups were decreased compared with those before operation(P<0.01),and the decrease of NIHSS scores on the postoperative day 7 and 90 in the observation group was significantly superior to that in the control group(P<0.01).(2)On the postoperative day 90,the rate of good functional outcome in the observation group was 96.00%(24/25),which was significantly higher than 69.57%(16/23)in the control group,and the difference was statistically significant(P<0.05).(3)On the postoperative day 7 and 90,the levels of TMAO,L-carnitine and betaine in the observation group tended to decrease compared with those before operation,but the difference was not statistically significant(P>0.05).However,the levels of TMAO,L-carnitine and betaine in the control group were significantly increased compared with those before operation(P<0.01).On the postoperative day 7,the levels of TMAO,L-carnitine and betaine in the observation group were significantly lower than those in the control group,and the differences were statistically significant(P<0.05).(4)Spearman correlation analysis showed that TMAO was positively correlated with NIHSS score,L-carnitine and choline(P<0.05 or P<0.01).Conclusion Tongsheng Prescription has a significant effect on AIS-LVO patients seven days after EVT.The Prescription is beneficial to obtain a good functional outcome,and its mechanism may be related to the decrease of TMAO level through L-carnitine and betaine pathways,so as to improve the neurological deficit symptoms of stroke patients.
8.MiR-155 regulates inflammatory responses and Th17/Treg imbalances in rheumatoid arthritis through the SOCS1/STAT3 pathway
Yuhong ZHAN ; Xinjie SHAN ; Jun ZHOU
The Journal of Practical Medicine 2024;40(13):1791-1796
Objective This research aimed to investigate the expression and mechanism of miR-155 and suppressor of cytokine signaling 1(SOCS1)in rheumatoid arthritis(RA).Methods RT-PCR and flow cytometry were applied to detect the expression differences of miR-155,Th17,and Treg cells in peripheral blood of RA patients(RA group)and control group(HC group).Bioinformatics analysis and dual-luciferase reporter assay were conducted to investigate the regulatory relationship between miR-155 and SOCS1.CD4+T cells were isolated from peripheral blood of RA patients and transfected with miR-155 inhibitor,si-SOCS1,and their respective negative control sequences,and divided into four groups:miR-NC group,miR-155 inhibitor group,miR-155 inhibitor+si-NC group,and miR-155 inhibitor+si-SOCS1 group.The cells were treated with Th17-inducing differentiation medium,and flow cytometry was used to determine the ratio of Th17 cells in each group of CD4+T cells.Western blot was used to determine the ratio of p-STAT3/STAT3 in the cells.Results Compared to the HC group,RA patients showed increased expression of miR-155 and Th17 ratio(P<0.01),and decreased Treg cell ratio(P<0.01).MiR-155 could target and inhibit the expression of SOCS1.Compared to the miR-NC group,the miR-155 inhibitor group,miR-155 inhibitor+si-NC group,and miR-155 inhibitor+si-SOCS1 group showed decreased Th17 ratio and p-STAT3/STAT3 ratio(P<0.01).Compared to the miR-155 inhibitor group,the miR-155 inhibitor+si-SOCS1 group exhibited increased Th17 ratio and p-STAT3/STAT3 ratio in CD4+T cells(P<0.05).Conclusion Elevated expression of miR-155 in RA patients may mediate the differentiation of CD4+T cells into Th17 cells through the SOCS1/STAT3 pathway,contributing to the imbalance of Th17/Treg cells in peripheral blood of RA patients.
9.Distribution of urinary tract pathogens and susceptibility to nenofloxacin and levofolxacin in patients with community-acquired urinary tract infection
Zhen DU ; Shan CHEN ; Liang CUI ; Huiling WU ; Zhan GAO ; Jin YANG ; Gang CUI ; Jiajing WANG ; Tiehuan SHU ; Ninghan FENG ; Ludong QIAO
Chinese Journal of Urology 2024;45(1):24-28
Objective:To investigate the distribution characteristics of urinary tract pathogens in patients with community-acquired urinary tract infection and their sensitivity to nenoxacin and levofloxacin.Methods:This prospective, multicenter clinical trial included patients with community-acquired urinary tract infection who were admitted to urological clinics at 9 clinical research centers from November 2021 to August 2022.Inclusion criteria: Patients aged 18-70 years with community-acquired acute uncomplicated cystitis(AUC), recurrent acute episodes of urinary tract infection(rUTI), and non-febrile complicated urinary tract infection(cUTI) with signs of urinary tract irritation and abnormal elevation of routine white blood cells in urine. Exclusion criteria: ①Patients who received effective antimicrobial therapy within 72 h before enrollment and lasted for more than 24 h. ②Fever (>37.3℃) or symptoms of upper urinary tract infection such as low back pain, tapping pain in the kidney area, etc. ③Indwelling urinary catheter. At the first visit, clean midstream urine samples were taken for bacterial culture, and the distribution characteristics of urinary pathogens of different types of urinary tract infections were analyzed. Extended spectrum β-lactamases (ESBLs) were measured for Gram-negative bacteria. The susceptibility of nenoxacin and levofloxacin to urinary tract pathogens was determined by disk diffusion method. Drug resistance rate, sensitivity rate were analyzed between different disease groups.Results:There were 404 enrolled patients from 9 hospitals, including 364 (90.1%) females and 40 (9.9%) males. A total of 177 strains of pathogenic bacteria were isolated, among which the highest proportion of Escherichia coli was 66.1% (117/177).Klebsiella pneumoniae was followed by 6.8% (12/177) and Streptococcus agalactis 5.1% (9/177). The bacterial spectrum distribution of AUC and rUTI were similar, and the proportions of Escherichia coli were 70.6% (85/119) and 65.9% (29/44), respectively. However, the proportions of Escherichia coli isolated from cUTI patients were only 28.6% (4/14) and Enterococcus faecalis 7.1%(1/14). The overall detection rate of ESBLs in Gram-negative bacteria was 30.9%(43/139). The sensitivity rate of nenoxacin was 74.6%(91/122), and the resistance rate was 25.4%(31/122). The overall sensitivity rate of levofloxacin was 44.9%(70/156) and the resistance rate was 36.5%(57/156). The rate of resistance of urinary tract pathogens to levofloxacin was 48.2% (27/56) in patients with previous urinary tract infection history, and 30.0% (30/100) in patients with no previous urinary tract infection history, the difference was statistically significant( P=0.023).The sensitivity rate of Gram-negative bacteria to nenofloxacin was 70.7% (65/92) and that to levofloxacin was 50.0% (46/92, P<0.001). The sensitivity of Gram-positive bacteria to nenofloxacin was 80.0% (16/20), and that to levofloxacin was 70.0% (14/20, P=0.009). Conclusions:The bacterial profile of out-patient community acquired urinary tract infection varies greatly according to different diseases. The proportion of Escherichia coli in AUC and rUTI patients is higher than that in cUTI. The detection rate of ESBLs in Gram-negative bacteria was lower than the domestic average.Patients with a history of urinary tract infection had a high risk of treatment failure with levofloxacin. The sensitivity of common urinary tract pathogens to nenofloxacin was higher than levofloxacin.
10.A multicenter study of neonatal stroke in Shenzhen,China
Li-Xiu SHI ; Jin-Xing FENG ; Yan-Fang WEI ; Xin-Ru LU ; Yu-Xi ZHANG ; Lin-Ying YANG ; Sheng-Nan HE ; Pei-Juan CHEN ; Jing HAN ; Cheng CHEN ; Hui-Ying TU ; Zhang-Bin YU ; Jin-Jie HUANG ; Shu-Juan ZENG ; Wan-Ling CHEN ; Ying LIU ; Yan-Ping GUO ; Jiao-Yu MAO ; Xiao-Dong LI ; Qian-Shen ZHANG ; Zhi-Li XIE ; Mei-Ying HUANG ; Kun-Shan YAN ; Er-Ya YING ; Jun CHEN ; Yan-Rong WANG ; Ya-Ping LIU ; Bo SONG ; Hua-Yan LIU ; Xiao-Dong XIAO ; Hong TANG ; Yu-Na WANG ; Yin-Sha CAI ; Qi LONG ; Han-Qiang XU ; Hui-Zhan WANG ; Qian SUN ; Fang HAN ; Rui-Biao ZHANG ; Chuan-Zhong YANG ; Lei DOU ; Hui-Ju SHI ; Rui WANG ; Ping JIANG ; Shenzhen Neonatal Data Network
Chinese Journal of Contemporary Pediatrics 2024;26(5):450-455
Objective To investigate the incidence rate,clinical characteristics,and prognosis of neonatal stroke in Shenzhen,China.Methods Led by Shenzhen Children's Hospital,the Shenzhen Neonatal Data Collaboration Network organized 21 institutions to collect 36 cases of neonatal stroke from January 2020 to December 2022.The incidence,clinical characteristics,treatment,and prognosis of neonatal stroke in Shenzhen were analyzed.Results The incidence rate of neonatal stroke in 21 hospitals from 2020 to 2022 was 1/15 137,1/6 060,and 1/7 704,respectively.Ischemic stroke accounted for 75%(27/36);boys accounted for 64%(23/36).Among the 36 neonates,31(86%)had disease onset within 3 days after birth,and 19(53%)had convulsion as the initial presentation.Cerebral MRI showed that 22 neonates(61%)had left cerebral infarction and 13(36%)had basal ganglia infarction.Magnetic resonance angiography was performed for 12 neonates,among whom 9(75%)had involvement of the middle cerebral artery.Electroencephalography was performed for 29 neonates,with sharp waves in 21 neonates(72%)and seizures in 10 neonates(34%).Symptomatic/supportive treatment varied across different hospitals.Neonatal Behavioral Neurological Assessment was performed for 12 neonates(33%,12/36),with a mean score of(32±4)points.The prognosis of 27 neonates was followed up to around 12 months of age,with 44%(12/27)of the neonates having a good prognosis.Conclusions Ischemic stroke is the main type of neonatal stroke,often with convulsions as the initial presentation,involvement of the middle cerebral artery,sharp waves on electroencephalography,and a relatively low neurodevelopment score.Symptomatic/supportive treatment is the main treatment method,and some neonates tend to have a poor prognosis.

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