1.Research Progress of Antibacterial Mechanism of Traditional Chinese Medicine and Synergistic Antibacterial Drugs to Reverse Drug Resistance
Jiamin CHEN ; Xinyu ZHAO ; Shuhua YUE ; Zihao SHEN ; Chujiong CHEN ; Shenghua LU ; Zengyu ZHANG ; Jie REN
Medical Journal of Peking Union Medical College Hospital 2025;16(5):1157-1169
With the widespread use of antimicrobial agents, bacterial drug resistance has become an increasingly severe issue, posing significant challenges to global healthcare. Traditional Chinese medicine (TCM) has emerged as a research focus in the field of bacterial resistance due to its broad sources, high safety profile, low toxicity, and antimicrobial mechanisms distinct from those of chemical drugs. Studies have shown that various TCM herbs, such as Scutellaria baicalensis, exert antibacterial effects through multiple pathways, including disrupting the integrity of bacterial cell walls and membranes, inhibiting nucleic acid and protein synthesis, and impairing energy production and metabolism. Additionally, certain TCM herbs, including Scutellaria baicalensis, Coptis chinensis, and Fritillaria thunbergii, can reverse antimicrobial resistance by eliminating resistant plasmids, inhibiting bacterial efflux pump function, and suppressing β-lactamase activity. TCM holds promising potential for antibacterial applications and synergistically reversing antimicrobial resistance, though systematic analyses remain limited. This review summarizes the mechanisms of antibacterial action of TCM and current research on its synergistic use with antimicrobial agents to reverse drug resistance, aiming to provide insights for developing novel TCM-based antimicrobials and addressing bacterial resistance.
2.Correlations between left atrial myocardial strain and left ventricular function in children with Duchenne muscular dystrophy
Yang FENG ; Jiaqi SHEN ; Li FAN ; Jiamin XIA ; Chunmei YIN ; Chunjiang YANG
Chinese Journal of Medical Imaging Technology 2025;41(3):414-418
Objective To observe the correlations between left atrial myocardial strain and left ventricular function in children with Duchenne muscular dystrophy(DMD).Methods Fifty-one DMD children(DMD group)and 42 healthy one(control group)were prospectively enrolled.The parameters of routine ultrasound and three-dimensional speckle-tracking echocardiography(3D-STE)were compared between groups,and the correlations between left atrial strain parameters and left ventricular function parameters were analyzed.Results The mitral annular lateral wall velocity(e'),left ventricular ejection fraction(LVEF),left atrial ejection fraction(LAEF),left atrioventricular coupling index(LACI),left ventricular global longitudinal strain(LVGLS),left atrial strain during reservoir phase(LASr)and left atrial strain during conduit phase(LAScd)were all lower,while mitral early diastolic peak flow velocity/e'(E/e'),left atrial stiffness index(LASI)and left atrial filling index(LAFI)were higher in DMD group than those in control group(all P<0.05).In DMD group,LAEF,LASr and LAScd were moderately positively correlated with LVGLS(r=0.409,0.437,0.440,all P<0.05),LAFI and LASI were weakly negatively correlated with LVGLS(r=-0.207,-0.223,both P<0.05),while LASr was moderately positively correlated with e'(r=0.419,P<0.05).Conclusion The left atrial myocardial strain was correlated with left ventricular systolic and diastolic function in DMD children.
3.Regulatory role of flavonoids in the signaling pathway of ischemic brain injury
Junlin PENG ; Zihao SHEN ; Jiamin CHEN ; Zengyu ZHANG ; Lunhui DUAN ; Ensi HONG ; Suyou ZHU
International Journal of Cerebrovascular Diseases 2025;33(1):59-66
In recent years, significant progress has been made in pharmacological research on the treatment of ischemic stroke with monomeric components of traditional Chinese medicine, among which flavonoids have shown good neuroprotective effects. This article reviews the regulatory role of flavonoids in the signaling pathway of ischemic brain injury.
4.Correlations between left atrial myocardial strain and left ventricular function in children with Duchenne muscular dystrophy
Yang FENG ; Jiaqi SHEN ; Li FAN ; Jiamin XIA ; Chunmei YIN ; Chunjiang YANG
Chinese Journal of Medical Imaging Technology 2025;41(3):414-418
Objective To observe the correlations between left atrial myocardial strain and left ventricular function in children with Duchenne muscular dystrophy(DMD).Methods Fifty-one DMD children(DMD group)and 42 healthy one(control group)were prospectively enrolled.The parameters of routine ultrasound and three-dimensional speckle-tracking echocardiography(3D-STE)were compared between groups,and the correlations between left atrial strain parameters and left ventricular function parameters were analyzed.Results The mitral annular lateral wall velocity(e'),left ventricular ejection fraction(LVEF),left atrial ejection fraction(LAEF),left atrioventricular coupling index(LACI),left ventricular global longitudinal strain(LVGLS),left atrial strain during reservoir phase(LASr)and left atrial strain during conduit phase(LAScd)were all lower,while mitral early diastolic peak flow velocity/e'(E/e'),left atrial stiffness index(LASI)and left atrial filling index(LAFI)were higher in DMD group than those in control group(all P<0.05).In DMD group,LAEF,LASr and LAScd were moderately positively correlated with LVGLS(r=0.409,0.437,0.440,all P<0.05),LAFI and LASI were weakly negatively correlated with LVGLS(r=-0.207,-0.223,both P<0.05),while LASr was moderately positively correlated with e'(r=0.419,P<0.05).Conclusion The left atrial myocardial strain was correlated with left ventricular systolic and diastolic function in DMD children.
5.Mechanism study of 6-sialyllactose alleviates immune checkpoint inhibitor-induced colitis in mouse
Ke LI ; Jiamin DONG ; Xinyi YANG ; Jinling MO ; Wuming SHEN ; Jingting JIANG ; Wenting ZHANG
Chinese Journal of Inflammatory Bowel Diseases 2024;08(6):440-449
Objective:To investigate the mechanism of 6-sialyllactose (6-SL) in interfering the immune checkpoint inhibitor-induced colitis (ICIC) through the bacterial 16S rDNA sequencing.Methods:BALB/c mice were randomly divided into the normal control (NC) group ( n = 7), dextran sulfate sodium (DSS) group ( n = 6), ICIC group ( n = 6), and ICIC+6-SL group ( n = 6). The DSS group was continuously fed with 3.5% DSS drinking water for 7 days to induce colonic inflammation; the ICIC group was administered cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4, 150 μg) intraperitoneally on days 0 and 4 in addition to 3.5% DSS drinking water to establish the ICIC mouse model; the ICIC+6-SL group was given 6-SL [150 mg/ (kg·d) ] by gavage simultaneously with the establishment of the ICIC model. Changes in mouse body weight and disease activity index (DAI) were statistically analyzed, and all mice were sacrificed on day 7 to observe gross and histopathological morphological changes in the colon and to tally histopathological scores; the fresh colonic feces were collected for 16S rDNA sequencing to statistically analyze the diversity and species differences in the microbiota of mice of each group. Results:The success rate of the ICIC model was 100%, with all mice surviving. At the endpoint of the study (day 7), compared with the NC and DSS groups, the ICIC group had lower mouse body weight ( P < 0.05), higher DAI ( P < 0.05), damaged integrity of colonic mucosal tissue, and typical ulcerative lesions; the ICIC+6-SL group showed significant alleviation of body weight loss, significantly lower DAI scores, and lower pathological scores compared to the ICIC group, with all differences being statistically significant (all P < 0.05). 16S rDNA sequencing of mouse intestinal feces indicated that the alpha diversity of colonic microbiota in the ICIC group was lower than that in the NC and DSS groups (both P < 0.05), while the ICIC+6-SL group had higher alpha diversity than the ICIC group ( P < 0.05). In beta diversity analysis, the ANOSIM statistical value R = 0.376, P = 0.001 for the PCoA analysis of colonic microbiota and a Stress value of 0.125, P = 0.001 for the NMDS analysis indicated differences in the composition of colonic microbiota among the groups, with the greatest difference between the NC and ICIC groups, and the ICIC+6-SL group's microbiota composition was closer to that of the NC group compared to the ICIC group. Lefse analysis and Kruskal-Wallis test-based differential microbiota analysis showed that at the phylum level, compared to the NC group, the abundance of Bacteroidetes was significantly reduced in the ICIC group, while Campilobacterota was increased, and 6-SL administration could increase the abundance of Bacteroidetes and Campilobacterota in the ICIC group. At the genus level, compared to other groups, the abundance of unclassified_f_Lachnospiraceae and norank_f_Muribaculaceae was the lowest in the ICIC group, while Helicobacter, Akkermansia, and Escherichia-Shigella were enriched. Compared to the ICIC group, the abundance of unclassified_f_Lachnospiraceae and norank_f_ Muribaculaceae was increased in the ICIC+6-SL group, while the abundance of Helicobacter and Escherichia-Shigella was significantly suppressed. Conclusions:6-SL, an oligosaccharide derived from human milk, alleviates intestinal inflammatory injury in ICIC mice, reducing disease activity. This beneficial effect may be related to its regulation of gut microbiota profiling, an increased diversity of microbiota, a restoration of Bacteroidetes, and an inhibition of the growth advantage of pathogenic bacteria such as Helicobacter and Escherichia-Shigella.
6.Prevalence of caries among children and adolescents in China: a meta-analysis
SHEN Rongfan ; LI Weiping ; DONG Zixuan ; WU Jiamin ; HE Minmei
Journal of Preventive Medicine 2024;36(12):1092-1096
Objective:
To systematically evaluate the prevalence of caries among children and adolescents in China, so as to provide the basis for the prevention and intervention of caries among children and adolescents.
Methods:
Literature on caries among children and adolescents aged 3 to 18 years was collected through SinoMed, CNKI, Wanfang Data, VIP, PubMed and Web of Science published from January 1, 2020 to December 31, 2023. A meta-analysis was performed using R 4.4.0 software. Literature were excluded one by one for sensitivity analysis. Publication bias was assessed using Egger's test and Begg rank correlation test.
Results:
Totally 561 publications were retrieved, and 26 eligible literature were enrolled in the final analysis. The survey period spanned from 2020 to 2023. The survey sites for 14, 4 and 8 eligible literature were eastern, central and western regions, respectively. A total of 95 594 individuals were included, with 45 004 cases of caries. Meta-analysis showed that the prevalence of caries among children and adolescents was 48.11% (95%CI: 41.58%-54.65%). Subgroup analysis results showed that there were no statistically significant differences in the prevalence of dental caries across different genders, regions, educational stages, urban-rural areas, and regional economic levels (all P>0.05). After sequentially excluding publications, the prevalence of caries ranged from 41.58% to 54.65%, indicating that the research results were relatively stable. Begg rank correlation test and Egger's test indicated no publication bias (all P>0.05).
Conclusion
The prevalence of caries among children and adolescents in China ranged from 41.58% to 54.65% from 2020 to 2023.
7.Advances in the Targeted Delivery of Antibody Drug Conjugates
Linfei WU ; Shanshan HU ; Jiamin HUANG ; Hongzhang SHEN ; Xiaofeng ZHANG
Chinese Journal of Modern Applied Pharmacy 2024;41(9):1281-1286
Targeted delivery of antibody bound to antigen is a precise drug delivery mode. It is regarded as one of the ideal targeted drug delivery modes due to its high specificity and affinity, which opens up a new way to successfully solve the problem of poor selectivity of chemotherapy drugs in antitumor therapy. Currently, the research on antibody drug conjugates(ADCs) that bind monoclonal antibodies to target antigens has become a research hotspot of molecular targeted therapy. This paper reviews the mechanism of action, targeting strategies and progress in the targeted delivery of ADCs, in order to provide reference for the clinical development of new ADCs.
8.Diagnostic Value of IGF-1 and IL-17A in Children with Autism Spectrum Disorder
Journal of Medical Research 2024;53(12):136-139,121
Objective To explore the diagnostic value of insulin-like growth factor-1(IGF-1)and interleukin-17 A(IL-17A)in children with autism spectrum disorder(ASD).Methods Eighty-six children aged 1 to 6 years with highly suspected ASD were recruited from the Department of Children Health Care,Wuhan Children's Hospital from January 2023 to December 2023.Diagnostic and Statistical Manual of Mental Disorders-5(DSM-5)was used to screen out ASD group and control group.,and the serum IGF-1 and IL-17A levels in the two groups were detected.Results Fifty-six ASD children were confirmed,accounting for 65%(56/86).Serum IGF-1 and IL-17A levels in ASD group were higher than those in control group,and the differences were statistically significant(P<0.05).The serum IGF-1 and IL-17A levels with different clinical characteristics were compared,and there was no statistically significant difference in serum IGF-1 and IL-17A levels with age and gender in ASD group(P>0.05).The children with severe ASD had significant higher serum IL-17A level than those with mild-to-moderate ASD(P<0.05),while the difference in serum IGF-1 level between the two groups of severe and mild-to-moderate ASD was not statistically significant(P>0.05).The Logistic regression analysis showed that overexpression of serum IGF-1 and IL-17 A was the influencing factor in the occurrence of ASD(OR>1,P<0.05).The receiver operating characteristic(ROC)curve analysis showed that the area under the curve(AUC)of serum IGF-1 and IL-17 A levels for diagnosing ASD alone and combination were 0.644,0.630 and 0.720.The combined detection had higher diag-nostic value.Conclusion Serum IGF-1 and IL-17A have the potential for early diagnosis of ASD,and the combined detection of the two levels is conducive to improving the diagnostic value of ASD.
9.Mechanism study of 6-sialyllactose alleviates immune checkpoint inhibitor-induced colitis in mouse
Ke LI ; Jiamin DONG ; Xinyi YANG ; Jinling MO ; Wuming SHEN ; Jingting JIANG ; Wenting ZHANG
Chinese Journal of Inflammatory Bowel Diseases 2024;08(6):440-449
Objective:To investigate the mechanism of 6-sialyllactose (6-SL) in interfering the immune checkpoint inhibitor-induced colitis (ICIC) through the bacterial 16S rDNA sequencing.Methods:BALB/c mice were randomly divided into the normal control (NC) group ( n = 7), dextran sulfate sodium (DSS) group ( n = 6), ICIC group ( n = 6), and ICIC+6-SL group ( n = 6). The DSS group was continuously fed with 3.5% DSS drinking water for 7 days to induce colonic inflammation; the ICIC group was administered cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4, 150 μg) intraperitoneally on days 0 and 4 in addition to 3.5% DSS drinking water to establish the ICIC mouse model; the ICIC+6-SL group was given 6-SL [150 mg/ (kg·d) ] by gavage simultaneously with the establishment of the ICIC model. Changes in mouse body weight and disease activity index (DAI) were statistically analyzed, and all mice were sacrificed on day 7 to observe gross and histopathological morphological changes in the colon and to tally histopathological scores; the fresh colonic feces were collected for 16S rDNA sequencing to statistically analyze the diversity and species differences in the microbiota of mice of each group. Results:The success rate of the ICIC model was 100%, with all mice surviving. At the endpoint of the study (day 7), compared with the NC and DSS groups, the ICIC group had lower mouse body weight ( P < 0.05), higher DAI ( P < 0.05), damaged integrity of colonic mucosal tissue, and typical ulcerative lesions; the ICIC+6-SL group showed significant alleviation of body weight loss, significantly lower DAI scores, and lower pathological scores compared to the ICIC group, with all differences being statistically significant (all P < 0.05). 16S rDNA sequencing of mouse intestinal feces indicated that the alpha diversity of colonic microbiota in the ICIC group was lower than that in the NC and DSS groups (both P < 0.05), while the ICIC+6-SL group had higher alpha diversity than the ICIC group ( P < 0.05). In beta diversity analysis, the ANOSIM statistical value R = 0.376, P = 0.001 for the PCoA analysis of colonic microbiota and a Stress value of 0.125, P = 0.001 for the NMDS analysis indicated differences in the composition of colonic microbiota among the groups, with the greatest difference between the NC and ICIC groups, and the ICIC+6-SL group's microbiota composition was closer to that of the NC group compared to the ICIC group. Lefse analysis and Kruskal-Wallis test-based differential microbiota analysis showed that at the phylum level, compared to the NC group, the abundance of Bacteroidetes was significantly reduced in the ICIC group, while Campilobacterota was increased, and 6-SL administration could increase the abundance of Bacteroidetes and Campilobacterota in the ICIC group. At the genus level, compared to other groups, the abundance of unclassified_f_Lachnospiraceae and norank_f_Muribaculaceae was the lowest in the ICIC group, while Helicobacter, Akkermansia, and Escherichia-Shigella were enriched. Compared to the ICIC group, the abundance of unclassified_f_Lachnospiraceae and norank_f_ Muribaculaceae was increased in the ICIC+6-SL group, while the abundance of Helicobacter and Escherichia-Shigella was significantly suppressed. Conclusions:6-SL, an oligosaccharide derived from human milk, alleviates intestinal inflammatory injury in ICIC mice, reducing disease activity. This beneficial effect may be related to its regulation of gut microbiota profiling, an increased diversity of microbiota, a restoration of Bacteroidetes, and an inhibition of the growth advantage of pathogenic bacteria such as Helicobacter and Escherichia-Shigella.
10.Diagnostic Value of IGF-1 and IL-17A in Children with Autism Spectrum Disorder
Journal of Medical Research 2024;53(12):136-139,121
Objective To explore the diagnostic value of insulin-like growth factor-1(IGF-1)and interleukin-17 A(IL-17A)in children with autism spectrum disorder(ASD).Methods Eighty-six children aged 1 to 6 years with highly suspected ASD were recruited from the Department of Children Health Care,Wuhan Children's Hospital from January 2023 to December 2023.Diagnostic and Statistical Manual of Mental Disorders-5(DSM-5)was used to screen out ASD group and control group.,and the serum IGF-1 and IL-17A levels in the two groups were detected.Results Fifty-six ASD children were confirmed,accounting for 65%(56/86).Serum IGF-1 and IL-17A levels in ASD group were higher than those in control group,and the differences were statistically significant(P<0.05).The serum IGF-1 and IL-17A levels with different clinical characteristics were compared,and there was no statistically significant difference in serum IGF-1 and IL-17A levels with age and gender in ASD group(P>0.05).The children with severe ASD had significant higher serum IL-17A level than those with mild-to-moderate ASD(P<0.05),while the difference in serum IGF-1 level between the two groups of severe and mild-to-moderate ASD was not statistically significant(P>0.05).The Logistic regression analysis showed that overexpression of serum IGF-1 and IL-17 A was the influencing factor in the occurrence of ASD(OR>1,P<0.05).The receiver operating characteristic(ROC)curve analysis showed that the area under the curve(AUC)of serum IGF-1 and IL-17 A levels for diagnosing ASD alone and combination were 0.644,0.630 and 0.720.The combined detection had higher diag-nostic value.Conclusion Serum IGF-1 and IL-17A have the potential for early diagnosis of ASD,and the combined detection of the two levels is conducive to improving the diagnostic value of ASD.


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