1.Association between small vulnerable newborn phenotypes and the risk of neurodevelopmental delay at the age of 1 year: a prospective cohort study
Jinhua LU ; Songying SHEN ; Wujiangyuan HE ; Fengjuan ZHOU ; Xiaoyan XIA ; Minshan LU ; Jianrong HE ; Huimin XIA ; Xiu QIU ; Wenhao ZHOU
Chinese Journal of Pediatrics 2026;64(1):52-60
Objective:To investigate the association between small vulnerable newborn (SVN) phenotypes and the risk of neurodevelopmental delay at the age of 1 year.Methods:A prospective cohort study was conducted. A total of 25 860 singleton infants from "The Born in Guangzhou Cohort Study" who completed the Gesell developmental scale assessment at 1 year of age between January 2013 and June 2025 were included. Maternal sociodemographic characteristics, and other information were collected using a self-administered questionnaire, and maternal pregnancy-related information and neonatal birth data were extracted from medical records. Global developmental delay (GDD) was defined as a developmental quotient below 86 in ≥3 domains of the Gesell developmental scale, which assesses the adaptive, gross motor, fine motor, language, and personal-social domains. The random forest algorithm was employed for missing data imputation. Based on prematurity, small for gestational age (SGA), and low birth weight (LBW), newborns were categorized into 6 phenotypes: preterm-SGA-LBW, preterm-appropriate for gestational age (AGA)-LBW, preterm-AGA-nonLBW, term-SGA-LBW, term-LBW-only or term-SGA-only, and term-AGA-nonLBW phenotype. Among these, the first 5 were classified as SVN phenotypes, and the last one served as the reference group. Inter-group comparisons were performed using analysis of variance (ANOVA), χ2 tests, or Kruskal-Wallis test, as appropriate.?? Multivariable robust Poisson regression models were applied to analyze the association of different SVN phenotypes with the risks of GDD and developmental delays in specific domains, with stratified analyses by sex. Results:Among the 25 860 infants, 13 719 (53.1%) were male and 12 141 (46.9%) were female. The gestational age at birth was 39.4 (38.6, 40.0) weeks. The overall detection rate of GDD at 1 year of age was 3.7% (962/25 860). The rates of delay across developmental domains, in descending order, language in 8 134 cases (31.5%), gross motor in 4 488 cases (17.4%), personal-social in 1 271 cases (4.9%), adaptive in 1 262 cases (4.9%), and fine motor in 621 cases (2.4%). Compared with the reference group, preterm-AGA-LBW, preterm-SGA-LBW, preterm-AGA-noneLBW, and term-SGA-LBW phenotypes were all associated with an increased risk of GDD, with the adjusted RR (95% CI) of 6.07(5.01-7.35), 4.81(3.11-7.46), 2.10(1.54-2.88) and 1.89(1.29-2.76) respectively.The preterm-AGA-noneLBW phenotype was all associated with an increased risk of delay in gross motor, language and personal-social functional domains (all P<0.05). The term-SGA-LBW phenotype was associated with an increased risk of delay in gross motor, fine motor and personal-social functional domains (all P<0.01). Whereas the term-LBW-only or term-SGA-only phenotype showed no statistically association with developmental delay in any functional domain (all P≥0.05). Conclusion:The combined classification based on gestational age and birth weight helps identify infants at high risk for neurodevelopmental delay at 1 year of age, suggesting that it may offer a reference for the rational allocation of clinical resources.
2.Association between small vulnerable newborn phenotypes and the risk of neurodevelopmental delay at the age of 1 year: a prospective cohort study
Jinhua LU ; Songying SHEN ; Wujiangyuan HE ; Fengjuan ZHOU ; Xiaoyan XIA ; Minshan LU ; Jianrong HE ; Huimin XIA ; Xiu QIU ; Wenhao ZHOU
Chinese Journal of Pediatrics 2026;64(1):52-60
Objective:To investigate the association between small vulnerable newborn (SVN) phenotypes and the risk of neurodevelopmental delay at the age of 1 year.Methods:A prospective cohort study was conducted. A total of 25 860 singleton infants from "The Born in Guangzhou Cohort Study" who completed the Gesell developmental scale assessment at 1 year of age between January 2013 and June 2025 were included. Maternal sociodemographic characteristics, and other information were collected using a self-administered questionnaire, and maternal pregnancy-related information and neonatal birth data were extracted from medical records. Global developmental delay (GDD) was defined as a developmental quotient below 86 in ≥3 domains of the Gesell developmental scale, which assesses the adaptive, gross motor, fine motor, language, and personal-social domains. The random forest algorithm was employed for missing data imputation. Based on prematurity, small for gestational age (SGA), and low birth weight (LBW), newborns were categorized into 6 phenotypes: preterm-SGA-LBW, preterm-appropriate for gestational age (AGA)-LBW, preterm-AGA-nonLBW, term-SGA-LBW, term-LBW-only or term-SGA-only, and term-AGA-nonLBW phenotype. Among these, the first 5 were classified as SVN phenotypes, and the last one served as the reference group. Inter-group comparisons were performed using analysis of variance (ANOVA), χ2 tests, or Kruskal-Wallis test, as appropriate.?? Multivariable robust Poisson regression models were applied to analyze the association of different SVN phenotypes with the risks of GDD and developmental delays in specific domains, with stratified analyses by sex. Results:Among the 25 860 infants, 13 719 (53.1%) were male and 12 141 (46.9%) were female. The gestational age at birth was 39.4 (38.6, 40.0) weeks. The overall detection rate of GDD at 1 year of age was 3.7% (962/25 860). The rates of delay across developmental domains, in descending order, language in 8 134 cases (31.5%), gross motor in 4 488 cases (17.4%), personal-social in 1 271 cases (4.9%), adaptive in 1 262 cases (4.9%), and fine motor in 621 cases (2.4%). Compared with the reference group, preterm-AGA-LBW, preterm-SGA-LBW, preterm-AGA-noneLBW, and term-SGA-LBW phenotypes were all associated with an increased risk of GDD, with the adjusted RR (95% CI) of 6.07(5.01-7.35), 4.81(3.11-7.46), 2.10(1.54-2.88) and 1.89(1.29-2.76) respectively.The preterm-AGA-noneLBW phenotype was all associated with an increased risk of delay in gross motor, language and personal-social functional domains (all P<0.05). The term-SGA-LBW phenotype was associated with an increased risk of delay in gross motor, fine motor and personal-social functional domains (all P<0.01). Whereas the term-LBW-only or term-SGA-only phenotype showed no statistically association with developmental delay in any functional domain (all P≥0.05). Conclusion:The combined classification based on gestational age and birth weight helps identify infants at high risk for neurodevelopmental delay at 1 year of age, suggesting that it may offer a reference for the rational allocation of clinical resources.
3.Application of next-generation sequencing technology for the investigation of immunoglobulin variable region characteristics and their prognostic significance in patients with chronic lymphocytic leukemia
Zhen GUO ; Huimin JIN ; Tonglu QIU ; Liying ZHU ; Yujie WU ; Hairong QIU ; Yan WANG ; Yi MIAO ; Hui JIN ; Lei FAN ; Jianyong LI ; Yi XIA ; Chun QIAO
Chinese Journal of Hematology 2025;46(3):261-268
Objective:To elucidate the genomic characteristics of the immunoglobulin (IG) heavy-chain variable region and light-chain variable region, the expression of subclones, and the prognostic significance in patients with CLL.Methods:Blood and/or bone marrow specimens were gathered from a cohort of 36 patients with CLL diagnosed at Jiangsu Province Hospital from December 2018 to May 2023, including 12 cases of B cell receptor (BCR) stereotyped patients. IG heavy-chain (IGH) and light-chain (IG Kappa [IGK] and IG lambda [IGL]) gene rearrangements were performed using next-generation sequencing (NGS) technology to analyze the characteristics and prognostic value in CLL.Results:NGS detection of IG variable region (IGHV) demonstrated a significant correlation and superior consistency with Sanger sequencing ( r=0.957, P < 0.001). Among the 36 patients, the IGH variant (IGHV) was observed in 9 (25.0%) but not in 27 (75.0%) participants. The incidence of the MYD88 mutation was higher among patients with mutated IGHV [1/27 (3.7%) vs 4/9 (44.4%), P=0.00]. A high incidence of trisomy 12 was observed in the IGHV #8/#8B subset [4/11 (36.4%) vs 1/25 (4.0%), P=0.023], which were more likely to develop Richter transformation [8/11 (72.7%) vs 4/25 (16.0%), P=0.002]. In the patient cohort, 36 individuals (36/36, 100.0%) used the IGK variable, whereas 15 individuals (15/36, 41.7%) employed the IGL variable (IGLV). IGLV3 - 21 reported the highest utilization rate in IGLV (5/15, 33.3%). Remarkably, patients with CLL with IGLV3-21 fragments were exclusively observed in the Binet C stage and Rai Phase Ⅲ-Ⅳ, with an incidence of del (13) (q14) at 60.0% (3/5). The median time to first treatment (TTFT) of patients with or without IGLV3 - 21 fragments was 5.2 (1.1 - 41.5) and 9.9 (0.1 - 94.4) months, respectively. Using the total reads threshold of 2.5%, 4 (4/36, 11.1%) samples were detected to have two IGHV productive clones. The median TTFT and overall survival (OS) time were 2.8 (0.9-72.7) and 12.8 months in patients with one mutated clone and 57.5 (32.0-120.7) and 51.8 months in those with two mutated clones, respectively. The median TTFT and OS time were 10.9 (0.3-94.4) and 6.3 (0.1 - 12.5) months in patients with one unmutated clone and 49.9 (22.2 - 211.1) and 30.0 (9.6 - 50.3) months in those with multiple unmutated clones, respectively ( P>0.05) . Conclusions:Detection of IG gene rearrangements using NGS technology not only facilitates the analysis of the IGHV mutation status, dominant clones, and prognostic value but also contributes to the exploration of IGK/IGL gene rearrangement fragments and the utilization of subclones. Further, it provides information about the poor prognosis of IGLV3 - 21 CLL. The shortened survival of the two unmutated clone groups in the IGHV unmutated group may indicate a poor prognosis.
4.Design and synthesis of novel saponin-triazole derivatives in the regulation of adipogenesis.
Yongsheng FANG ; Zhiyun ZHU ; Chun XIE ; Dazhen XIA ; Huimin ZHAO ; Zihui WANG ; Qian LU ; Caimei ZHANG ; Wenyong XIONG ; Xiaodong YANG
Chinese Journal of Natural Medicines (English Ed.) 2025;23(8):920-931
Saponins associated with Panax notoginseng (P. notoginseng) demonstrate significant therapeutic efficacy across multiple diseases. However, certain high-yield saponins face limited clinical applications due to their reduced pharmacological efficacy. This study synthesized and evaluated 36 saponin-1,2,3-triazole derivatives of ginsenosides Rg1/Rb1 and notoginsenoside R1 for anti-adipogenesis activity in vitro. The research revealed that the ginsenosides Rg1-1,2,3-triazole derivative a17 demonstrates superior adipogenesis inhibitory effects. Structure-activity relationships (SARs) analysis indicates that incorporating an amidyl-substituted 1,2,3-triazole into the saponin side chain via Click reaction enhances anti-adipogenesis activity. Additionally, several other derivatives exhibit general adipogenesis inhibition. Compound a17 demonstrated enhanced potency compared to the parent ginsenoside Rg1. Mechanistic investigations revealed that a17 exhibits dose-dependent inhibition of adipogenesis in vitro, accompanied by decreased expression of preadipocytes. Peroxisome proliferator-activated receptor γ (PPARγ), fatty acid synthase (FAS), and fatty acid binding protein 4 (FABP4) adipogenesis regulators. These findings establish the ginsenoside Rg1-1,2,3-triazole derivative a17 as a promising adipocyte differentiation inhibitor and potential therapeutic agent for obesity and associated metabolic disorders. This research provides a foundation for developing effective therapeutic approaches for various metabolic syndromes.
Adipogenesis/drug effects*
;
Triazoles/chemical synthesis*
;
Ginsenosides/chemical synthesis*
;
Saponins/chemical synthesis*
;
Animals
;
Mice
;
Structure-Activity Relationship
;
PPAR gamma/genetics*
;
3T3-L1 Cells
;
Adipocytes/metabolism*
;
Panax notoginseng/chemistry*
;
Drug Design
;
Molecular Structure
;
Humans
;
Cell Differentiation/drug effects*
;
Fatty Acid-Binding Proteins/genetics*
5.Multidisciplinary team-based real-world study of patients with hepatitis B-related liver cancer
Huimin LIU ; Shilian LI ; Lijian RAN ; Jing WANG ; Wenting CHEN ; Baoyan XU ; Wenting TAN ; Jie XIA ; Qing MAO
Chinese Journal of Experimental and Clinical Virology 2025;39(4):403-410
Objective:To investigate the clinical characteristics of patients with hepatitis B virus(HBV)-related primary hepatocellular carcinoma(HCC)who were treated in a multidisciplinary team(MDT)for liver cancer,so as to provide a basis for clinical optimization of the diagnosis and treatment of patients with chronic hepatitis B(CHB).Methods:A retrospective analysis was performed for 482 HBV-related HCC patients who were treated with HCC-MDT every Thursday afternoon in The First Affiliated Hospital of the Army Medical University from January 2022 to May 2024,aged 18-87(55.54±10.84)years,86.93%(419/482)males and 13.07%(63/482)females. According to the different underlying liver diseases at the time of initial medical treatment and the different prognostic outcomes at the later follow-up,the differences in clinical characteristics between groups under different conditions were compared and analyzed,and the influencing factors of HCC prognosis were understood by Logistic regression analysis. Results:At the time of MDT presentation,the differences in HBeAg status( χ2=6.311 ,P=0.043),γ-glutamyl traspeptidase(GGT)( Z=6.277, P=0.043),alkaline phosphatase(ALP)( Z=7.236 ,P=0.027),and model for end-stage liver disease(MELD)scores( Z=6.111, P=0.047)among patients with different underlying liver diseases were statistically significant. At follow-up,6.75%(11/163)of HBV-related HCC patients who presented to MDT had a family history of HCC,and their cumulative mortality rate was as high as 60.8%(205/337)at least for 1 year. Mulitivariate Logistic regression analysis showed that different underlying liver disease at the time of initial medical treatment,HBV DNA replication level,MELD score and choice of anti-cancer treatment regimen were the influencing factors for the prognosis of HCC(all P<0.05). The worse the degree of cirrhosis at the initial presentation,the higher the level of HBV DNA replication,and the higher the MELD score,the worse the prognosis for HCC. Conclusion:Advancing the diagnosis and treatment of CHB,maximizing the inhibition of HBV DNA replication,reducing the MELD score,and optimizing the anti-cancer treatment regimen can reduce the mortality rate of HBV-related HCC.
6.Visualization Analysis of the Current Research Status of Chinese Materia Medica Treatment for Parkinson's Disease
Weizhou CHEN ; Ping YIN ; Xia LI ; Die HU ; Zhenyu GUO ; Cong GAI ; Huimin ZHU
World Science and Technology-Modernization of Traditional Chinese Medicine 2025;27(11):3276-3294
Objective To give references for future study,the current state of research and identify key areas of interest,and development trends in the field of Chinese Materia Medica interventions for PD were examined.Methods Literature on Chinese Materia Medica treatment of PD published between 2004 and 2024 was retrieved from the China National Knowledge Infrastructure(CNKI)and Web of Science(WOS)databases.After screening,689 articles were included(412 in Chinese,277 in English).CiteSpace software was used for bibliometric and knowledge graph analysis,generating author collaboration networks,institutional collaboration networks,keyword clustering,timeline maps,and keyword burst analysis.Results Over the past two decades,the number of publications has continued to grow globally.Chinese-language studies focused primarily on clinical research,with core authors such as Yi Liu,Jiancheng He,and Jianfen Liang,and institutions like Guangxi University of Chinese Medicine making significant contributions.English-language literature emphasized mechanistic studies,with Kyung Hee University and Beijing University of Chinese Medicine as leading research teams.High-frequency keywords included"Parkinson's disease"(346 occurrences),"traditional Chinese medicine(TCM)"(60 occurrences),and"oxidative stress"(11 occurrences).Keyword clustering revealed research hotspots in TCM formulas(e.g.,Zhichan decoction),mechanisms(e.g.,oxidative stress),and integrated TCM-Western medicine therapies(e.g.,Madopar).Burst analysis indicated emerging frontiers in the gut-brain axis,iron metabolism,molecular docking,gut microbiota,and signaling pathways.Conclusions Although there is a lot of potential for treating PD in TCM,there are also a lot of challenges.In order to realize the transformation of TCM from a supportive to a mainstream treatment for PD,and to bring better efficacy to patients in the future,it is necessary to strengthen evidence-based research,deepen the research of mechanisms,promote the construction of standards,explore the integration of Chinese and Western medicine,and improve the evaluation system.
7.Visualization Analysis of the Current Research Status of Chinese Materia Medica Treatment for Parkinson's Disease
Weizhou CHEN ; Ping YIN ; Xia LI ; Die HU ; Zhenyu GUO ; Cong GAI ; Huimin ZHU
World Science and Technology-Modernization of Traditional Chinese Medicine 2025;27(11):3276-3294
Objective To give references for future study,the current state of research and identify key areas of interest,and development trends in the field of Chinese Materia Medica interventions for PD were examined.Methods Literature on Chinese Materia Medica treatment of PD published between 2004 and 2024 was retrieved from the China National Knowledge Infrastructure(CNKI)and Web of Science(WOS)databases.After screening,689 articles were included(412 in Chinese,277 in English).CiteSpace software was used for bibliometric and knowledge graph analysis,generating author collaboration networks,institutional collaboration networks,keyword clustering,timeline maps,and keyword burst analysis.Results Over the past two decades,the number of publications has continued to grow globally.Chinese-language studies focused primarily on clinical research,with core authors such as Yi Liu,Jiancheng He,and Jianfen Liang,and institutions like Guangxi University of Chinese Medicine making significant contributions.English-language literature emphasized mechanistic studies,with Kyung Hee University and Beijing University of Chinese Medicine as leading research teams.High-frequency keywords included"Parkinson's disease"(346 occurrences),"traditional Chinese medicine(TCM)"(60 occurrences),and"oxidative stress"(11 occurrences).Keyword clustering revealed research hotspots in TCM formulas(e.g.,Zhichan decoction),mechanisms(e.g.,oxidative stress),and integrated TCM-Western medicine therapies(e.g.,Madopar).Burst analysis indicated emerging frontiers in the gut-brain axis,iron metabolism,molecular docking,gut microbiota,and signaling pathways.Conclusions Although there is a lot of potential for treating PD in TCM,there are also a lot of challenges.In order to realize the transformation of TCM from a supportive to a mainstream treatment for PD,and to bring better efficacy to patients in the future,it is necessary to strengthen evidence-based research,deepen the research of mechanisms,promote the construction of standards,explore the integration of Chinese and Western medicine,and improve the evaluation system.
8.Application of next-generation sequencing technology for the investigation of immunoglobulin variable region characteristics and their prognostic significance in patients with chronic lymphocytic leukemia
Zhen GUO ; Huimin JIN ; Tonglu QIU ; Liying ZHU ; Yujie WU ; Hairong QIU ; Yan WANG ; Yi MIAO ; Hui JIN ; Lei FAN ; Jianyong LI ; Yi XIA ; Chun QIAO
Chinese Journal of Hematology 2025;46(3):261-268
Objective:To elucidate the genomic characteristics of the immunoglobulin (IG) heavy-chain variable region and light-chain variable region, the expression of subclones, and the prognostic significance in patients with CLL.Methods:Blood and/or bone marrow specimens were gathered from a cohort of 36 patients with CLL diagnosed at Jiangsu Province Hospital from December 2018 to May 2023, including 12 cases of B cell receptor (BCR) stereotyped patients. IG heavy-chain (IGH) and light-chain (IG Kappa [IGK] and IG lambda [IGL]) gene rearrangements were performed using next-generation sequencing (NGS) technology to analyze the characteristics and prognostic value in CLL.Results:NGS detection of IG variable region (IGHV) demonstrated a significant correlation and superior consistency with Sanger sequencing ( r=0.957, P < 0.001). Among the 36 patients, the IGH variant (IGHV) was observed in 9 (25.0%) but not in 27 (75.0%) participants. The incidence of the MYD88 mutation was higher among patients with mutated IGHV [1/27 (3.7%) vs 4/9 (44.4%), P=0.00]. A high incidence of trisomy 12 was observed in the IGHV #8/#8B subset [4/11 (36.4%) vs 1/25 (4.0%), P=0.023], which were more likely to develop Richter transformation [8/11 (72.7%) vs 4/25 (16.0%), P=0.002]. In the patient cohort, 36 individuals (36/36, 100.0%) used the IGK variable, whereas 15 individuals (15/36, 41.7%) employed the IGL variable (IGLV). IGLV3 - 21 reported the highest utilization rate in IGLV (5/15, 33.3%). Remarkably, patients with CLL with IGLV3-21 fragments were exclusively observed in the Binet C stage and Rai Phase Ⅲ-Ⅳ, with an incidence of del (13) (q14) at 60.0% (3/5). The median time to first treatment (TTFT) of patients with or without IGLV3 - 21 fragments was 5.2 (1.1 - 41.5) and 9.9 (0.1 - 94.4) months, respectively. Using the total reads threshold of 2.5%, 4 (4/36, 11.1%) samples were detected to have two IGHV productive clones. The median TTFT and overall survival (OS) time were 2.8 (0.9-72.7) and 12.8 months in patients with one mutated clone and 57.5 (32.0-120.7) and 51.8 months in those with two mutated clones, respectively. The median TTFT and OS time were 10.9 (0.3-94.4) and 6.3 (0.1 - 12.5) months in patients with one unmutated clone and 49.9 (22.2 - 211.1) and 30.0 (9.6 - 50.3) months in those with multiple unmutated clones, respectively ( P>0.05) . Conclusions:Detection of IG gene rearrangements using NGS technology not only facilitates the analysis of the IGHV mutation status, dominant clones, and prognostic value but also contributes to the exploration of IGK/IGL gene rearrangement fragments and the utilization of subclones. Further, it provides information about the poor prognosis of IGLV3 - 21 CLL. The shortened survival of the two unmutated clone groups in the IGHV unmutated group may indicate a poor prognosis.
9.Multidisciplinary team-based real-world study of patients with hepatitis B-related liver cancer
Huimin LIU ; Shilian LI ; Lijian RAN ; Jing WANG ; Wenting CHEN ; Baoyan XU ; Wenting TAN ; Jie XIA ; Qing MAO
Chinese Journal of Experimental and Clinical Virology 2025;39(4):403-410
Objective:To investigate the clinical characteristics of patients with hepatitis B virus(HBV)-related primary hepatocellular carcinoma(HCC)who were treated in a multidisciplinary team(MDT)for liver cancer,so as to provide a basis for clinical optimization of the diagnosis and treatment of patients with chronic hepatitis B(CHB).Methods:A retrospective analysis was performed for 482 HBV-related HCC patients who were treated with HCC-MDT every Thursday afternoon in The First Affiliated Hospital of the Army Medical University from January 2022 to May 2024,aged 18-87(55.54±10.84)years,86.93%(419/482)males and 13.07%(63/482)females. According to the different underlying liver diseases at the time of initial medical treatment and the different prognostic outcomes at the later follow-up,the differences in clinical characteristics between groups under different conditions were compared and analyzed,and the influencing factors of HCC prognosis were understood by Logistic regression analysis. Results:At the time of MDT presentation,the differences in HBeAg status( χ2=6.311 ,P=0.043),γ-glutamyl traspeptidase(GGT)( Z=6.277, P=0.043),alkaline phosphatase(ALP)( Z=7.236 ,P=0.027),and model for end-stage liver disease(MELD)scores( Z=6.111, P=0.047)among patients with different underlying liver diseases were statistically significant. At follow-up,6.75%(11/163)of HBV-related HCC patients who presented to MDT had a family history of HCC,and their cumulative mortality rate was as high as 60.8%(205/337)at least for 1 year. Mulitivariate Logistic regression analysis showed that different underlying liver disease at the time of initial medical treatment,HBV DNA replication level,MELD score and choice of anti-cancer treatment regimen were the influencing factors for the prognosis of HCC(all P<0.05). The worse the degree of cirrhosis at the initial presentation,the higher the level of HBV DNA replication,and the higher the MELD score,the worse the prognosis for HCC. Conclusion:Advancing the diagnosis and treatment of CHB,maximizing the inhibition of HBV DNA replication,reducing the MELD score,and optimizing the anti-cancer treatment regimen can reduce the mortality rate of HBV-related HCC.
10.Analysis of drug resistance phenotypes and drug resistance genes of Enterococcus faecalis and Enterococcus faecium isolates of human-animal-environment sources from a self-breeding pig farm in Xinjiang
Panpan XIA ; Huimin WU ; Wanzhao CHEN ; Chenhui ZHANG ; Peicong LAN ; Zepeng LIU ; Rui TIAN ; Lining XIA
Chinese Journal of Veterinary Science 2024;44(7):1430-1437
In order to understand the prevalence and antimicrobial resistance of Enterococcus faeca-lis(E.faecalis)and Enterococcus faecium(E.faecium)isolated from human,pig and environ-ment in a Xinjiang pig farm,and to investigate the prevalence and potential harm of antimicrobial resistance genes,858 fecal samples from pig farm workers,anal swabs from pig and environment were collected for isolation,identification,antimicrobial susceptibility test and drug resistance gene detection.The results showed that 429 strains of E.faecalis and 222 strains of E.faecium were i-solated.The distribution of Enterococcus species varied among different sources.The isolation rate of E.faecalis was higher in pig anal swabs(73.1%,309/423)and human fecal samples(68.4%,26/38).E.faecium(42.3%,168/397)was mainly isolated from environmental samples.The drug resistance of E.faecalis and E.faecium isolated from pigs was similar to that of E.faecium isola-ted from environment.The drug resistance rates of E.faecalis and E.faecium isolated from pigs were more serious than those from humans to tetracycline,doxycycline,florfenicol and erythromy-cin,and they were more sensitive to ciprofloxacin and levofloxacin.More than 30.0%of E.faecalis and E.faecium isolated from pigs and environment were intermediate to linezolid.E.faecalis from three sources and E.faecium from environmental sources were mainly resistant to five drugs,while E.faecium from pigs was mainly resistant to six drugs.The detection rates of tet(M)and tet(L)genes in E.faecalis and E.faecium isolates from human,animal and environmental sources were more than 70.0%,which was consistent with the results of drug sensitivity.In addition,the cfr,optrA and poxtA genes that mediate oxazolidinone resistance were detected to varying extent.The cfr gene was only detected in four E.faecalis isolates from swine,one E.faecalis isolate from environment and two E.faecium isolates from environment.The positive rate of optrA gene in E.faecium isolated from pigs and environment was higher than that from humans,and the posi-tive rate was more than 60.0%.The positive rate of poxtA gene in E.faecium isolated from pigs and humans was more than 45.0%.The similar drug resistance situation suggests that there is the phenomenon of mutual contamination of drug-resistant bacteria in human-animal-environment.Therefore,we should consider from the perspective of one health,formulate comprehensive disin-fection and control programs,block the transmission route of drug-resistant strains and drug re-sistance genes between human-animal-environment,standardize the use of antibiotics,and reduce the enrichment of antibiotics in human-animal-environment,so as to reduce the risk of drug-resist-ant bacteria.

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