1.Meta analysis of the efficacy of digital psychological therapies on depressive symptoms among adolescents
YANG Xuan, YANG Dong, CAI Rui, TANG Yuping, YE Sheng, LUO Yaoyue
Chinese Journal of School Health 2026;47(4):531-537
Objective:
To systematically evaluate the therapeutic efficacy and maintenance effects of digital psychological therapies on depressive symptoms among adolescents, so as to provide a reference for clinical practice.
Methods:
Randomized controlled trial(RCT) investigating digital psychological therapies to improve depressive symptoms among adolescents were searched across databases, including PubMed, Embase, Cochrane Library, Web of Science, China National Knowledge Infrastructure (CNKI), Wanfang database, VIP database, and SinoMed, from database inception to November 20, 2025. Following literature screening, quality assessment, and data extraction, a Meta analysis was performed using Stata 18.0 software.
Results:
A total of 20 studies involving 2 042 adolescents aged 11-19 were included. The Meta analysis revealed that digital psychological therapies significantly alleviated depressive symptoms in adolescents ( SMD =-0.59, 95% CI =-0.85 to -0.32, P <0.01). The therapeutic effect was sustained at long term follow up ( SMD =-0.21, 95% CI =-0.34 to -0.09, P <0.01). Furthermore, depression scores in the intervention group showed a continued decrease from post intervention to long term follow up ( SMD =-0.28, 95% CI =-0.41 to -0.14, P <0.01). Egger s linear regression test indicated possible publication bias (Kendall s tall=0.28, P <0.01).
Conclusions
Digital psychological therapies can effectively improve depressive symptoms among adolescents, with stable long term efficacy. However, current evidence remains limited and exhibits substantial heterogeneity. Therefore, further large sample, high quality RCTs are warranted to validate the effectiveness of this intervention.
2.In Vitro Anti-psoriatic Effect of Kangfuxin Liquid via Inhibiting Cell Proliferation and Migration Ability and Blocking JAK3/STAT3 Signaling Pathway
Shuai LI ; Xuan LIU ; Wenyan TANG ; Zhenqi WU ; Chunhui CHEN ; Dadan QIU ; Yi XU ; Chenggui ZHANG ; Jianquan ZHU ; Jiali ZHU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):123-133
ObjectiveThis paper aims to explore the in vitro anti-psoriasis activity and potential mechanism of Kangfuxin liquid (KFX liquid), providing experimental evidence for the anti-psoriasis effect of KFX liquid. MethodsFirstly, the uninduced human immortalized keratinocyte cells (HaCaT cells) were divided into seven groups, namely the control group and KFX liquid groups with different doses (5, 10, 20, 40, 80, 160 g·L-1). After being treated with different concentrations of KFX liquid, the effect of KFX liquid on the normal cell proliferation was detected by using the cell counting kit-8 (CCK-8) method. Secondly, the uninduced HaCaT cells were divided into six groups, namely the control group and recombinant human interleukin-7A (rh-IL-7A) groups with different doses (5, 10, 50, 100, 120 g·L-1). After being treated with different concentrations of recombinant human interleukin-17A (rh IL-17A) liquid, the effect of rh IL-17A on cell proliferation was detected. The optimal induction concentration was screened. Then, normal HaCaT cells were divided into a control group and KFX liquid groups with different doses (5, 10, 20, 40, 80, 160 g·L-1). Except for the control group, the other groups established psoriasis cell models with the optimal induction concentration of rh IL-17A. After being treated with different concentrations of KFX liquid, the effects of KFX liquid on the psoriasis-like HaCaT cell proliferation were investigated. Finally, the uninduced HaCaT cells were divided into six groups, namely the control group, rh IL-17A group, methotrexate (MTX) group, and KFX liquid groups with different doses (20, 40, 80 g·L-1). Except for the control group, the other groups used the optimal induction concentration of rh IL-17A to establish psoriasis cell models. After being treated with different drugs, the cell migration levels were detected through scratch assays, and real-time quantitative polymerase chain reaction (Real-time PCR) was used to detect the relative mRNA expression levels of Ki-67 antigen (Ki67), S100 calcium-binding protein A7 (S100A7), S100 calcium-binding protein A8 (S100A8), and S100 calcium-binding protein A9 (S100A9), thereby comprehensively evaluating the in vitro anti-psoriasis activity of KFX liquid. By detecting the relative mRNA expression levels of interleukin-1β (IL-1β), interleukin-6 (IL-6), and chemokine-20 (CXCL-20) inflammatory-related factors in psoriasis-like HaCaT cells and the protein expression levels of Janus kinase 3 (JAK3), phosphorylated Janus kinase 3 (p-JAK3), signal transducer and activator of transcription 3 (STAT3), and phosphorylated signal transducer and activator of transcription 3 (p-STAT3), the mechanism was explored. ResultsCompared with that of control group, when treated with 80 g·L-1 KFX liquid for 72 h (P<0.05) and at different times with 160 g·L-1 KFX liquid, the HaCaT cell proliferation activity was significantly affected (P<0.01), while the other concentrations of KFX liquid had no significant differences in cell morphology and cell proliferation activity at different times, indicating that the KFX liquid is relatively safe for HaCaT cells and has no obvious toxic side effects. Compared with that of control group, when treated with different concentrations of rh IL-17A for 24 h, the HaCaT cell proliferation activity was significantly enhanced, and the cell activity was the strongest when the concentration was 100 μg·L-1 (P<0.05), with a density close to 100% and intact cell morphology, indicating that 100 μg·L-1 is the optimal concentration for inducing HaCaT cell proliferation. The results of the KFX liquid treatment on rh IL-17A-induced psoriasis-like cells show that the KFX liquid not only effectively inhibits the rh IL-17A-induced psoriasis-like HaCaT cell proliferation activity (P<0.01), but also significantly reduces the migration ability of rh IL-17A-induced psoriasis-like HaCaT cells (P<0.01), and the relative mRNA expression levels of Ki67, S100A7, S100A8, and S100A9 (P<0.01). Moreover, the KFX liquid can significantly reduce the relative mRNA expression levels of IL-1β, IL-6, and CXCL-20 in rh IL-17A-induced psoriasis-like cells (P<0.01), and significantly inhibit the phosphorylation levels of JAK3 and STAT3 proteins (P<0.05, P<0.01). ConclusionThe KFX liquid has no obvious toxicity to uninduced HaCaT cells. It can inhibit rh IL-17A-induced psoriasis-like HaCaT cell proliferation, reduce the cell migration ability, and has good in vitro anti-psoriasis activity. Its action mechanism may be related to downregulating the expression levels of inflammation-related cytokines in the JAK3/STAT3 signaling pathway and inhibiting the phosphorylation levels of JAK3 and STAT3 proteins.
3.In Vitro Anti-psoriatic Effect of Kangfuxin Liquid via Inhibiting Cell Proliferation and Migration Ability and Blocking JAK3/STAT3 Signaling Pathway
Shuai LI ; Xuan LIU ; Wenyan TANG ; Zhenqi WU ; Chunhui CHEN ; Dadan QIU ; Yi XU ; Chenggui ZHANG ; Jianquan ZHU ; Jiali ZHU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):123-133
ObjectiveThis paper aims to explore the in vitro anti-psoriasis activity and potential mechanism of Kangfuxin liquid (KFX liquid), providing experimental evidence for the anti-psoriasis effect of KFX liquid. MethodsFirstly, the uninduced human immortalized keratinocyte cells (HaCaT cells) were divided into seven groups, namely the control group and KFX liquid groups with different doses (5, 10, 20, 40, 80, 160 g·L-1). After being treated with different concentrations of KFX liquid, the effect of KFX liquid on the normal cell proliferation was detected by using the cell counting kit-8 (CCK-8) method. Secondly, the uninduced HaCaT cells were divided into six groups, namely the control group and recombinant human interleukin-7A (rh-IL-7A) groups with different doses (5, 10, 50, 100, 120 g·L-1). After being treated with different concentrations of recombinant human interleukin-17A (rh IL-17A) liquid, the effect of rh IL-17A on cell proliferation was detected. The optimal induction concentration was screened. Then, normal HaCaT cells were divided into a control group and KFX liquid groups with different doses (5, 10, 20, 40, 80, 160 g·L-1). Except for the control group, the other groups established psoriasis cell models with the optimal induction concentration of rh IL-17A. After being treated with different concentrations of KFX liquid, the effects of KFX liquid on the psoriasis-like HaCaT cell proliferation were investigated. Finally, the uninduced HaCaT cells were divided into six groups, namely the control group, rh IL-17A group, methotrexate (MTX) group, and KFX liquid groups with different doses (20, 40, 80 g·L-1). Except for the control group, the other groups used the optimal induction concentration of rh IL-17A to establish psoriasis cell models. After being treated with different drugs, the cell migration levels were detected through scratch assays, and real-time quantitative polymerase chain reaction (Real-time PCR) was used to detect the relative mRNA expression levels of Ki-67 antigen (Ki67), S100 calcium-binding protein A7 (S100A7), S100 calcium-binding protein A8 (S100A8), and S100 calcium-binding protein A9 (S100A9), thereby comprehensively evaluating the in vitro anti-psoriasis activity of KFX liquid. By detecting the relative mRNA expression levels of interleukin-1β (IL-1β), interleukin-6 (IL-6), and chemokine-20 (CXCL-20) inflammatory-related factors in psoriasis-like HaCaT cells and the protein expression levels of Janus kinase 3 (JAK3), phosphorylated Janus kinase 3 (p-JAK3), signal transducer and activator of transcription 3 (STAT3), and phosphorylated signal transducer and activator of transcription 3 (p-STAT3), the mechanism was explored. ResultsCompared with that of control group, when treated with 80 g·L-1 KFX liquid for 72 h (P<0.05) and at different times with 160 g·L-1 KFX liquid, the HaCaT cell proliferation activity was significantly affected (P<0.01), while the other concentrations of KFX liquid had no significant differences in cell morphology and cell proliferation activity at different times, indicating that the KFX liquid is relatively safe for HaCaT cells and has no obvious toxic side effects. Compared with that of control group, when treated with different concentrations of rh IL-17A for 24 h, the HaCaT cell proliferation activity was significantly enhanced, and the cell activity was the strongest when the concentration was 100 μg·L-1 (P<0.05), with a density close to 100% and intact cell morphology, indicating that 100 μg·L-1 is the optimal concentration for inducing HaCaT cell proliferation. The results of the KFX liquid treatment on rh IL-17A-induced psoriasis-like cells show that the KFX liquid not only effectively inhibits the rh IL-17A-induced psoriasis-like HaCaT cell proliferation activity (P<0.01), but also significantly reduces the migration ability of rh IL-17A-induced psoriasis-like HaCaT cells (P<0.01), and the relative mRNA expression levels of Ki67, S100A7, S100A8, and S100A9 (P<0.01). Moreover, the KFX liquid can significantly reduce the relative mRNA expression levels of IL-1β, IL-6, and CXCL-20 in rh IL-17A-induced psoriasis-like cells (P<0.01), and significantly inhibit the phosphorylation levels of JAK3 and STAT3 proteins (P<0.05, P<0.01). ConclusionThe KFX liquid has no obvious toxicity to uninduced HaCaT cells. It can inhibit rh IL-17A-induced psoriasis-like HaCaT cell proliferation, reduce the cell migration ability, and has good in vitro anti-psoriasis activity. Its action mechanism may be related to downregulating the expression levels of inflammation-related cytokines in the JAK3/STAT3 signaling pathway and inhibiting the phosphorylation levels of JAK3 and STAT3 proteins.
4.Current Status,Challenges,and Strategies of Basic Research on the Brain-Gut Interaction Theory for Spleen and Stomach Diseases in Traditional Chinese Medicine
Ting CHEN ; Jinxia ZHU ; Xiaohua HOU ; Xiaoli ZHANG ; Lifei ZHENG ; Lei ZHANG ; Xinxin WANG ; Xuan LI ; Xudong TANG
Journal of Traditional Chinese Medicine 2026;67(5):517-522
The brain-gut interaction theory is a multidimensional integrative concept based on the brain-gut axis, involving neural, endocrine, and immune regulatory networks as well as the gut microbiota. Zang-fu organs (脏腑) theory in traditional Chinese medicine (TCM) shows a high degree of consistency with the brain-gut interaction theory, and the core functions such as the spleen and stomach governing the ascending of the clear and descending of the turbid, the liver governing the free flow of qi, and the heart governing mental and emotional activities are closely associated with the multi-level regulatory mechanisms of the brain-gut axis. TCM therapy can modulate brain-gut interactions through multiple pathways in the treatment of spleen and stomach diseases, including the regulation of gastrointestinal hormone secretion, neurotransmitter levels, the hypothalamic-pituitary-adrenal (HPA) axis, immune homeostasis and inflammatory responses, as well as the gut microecology. However, current basic research on the brain-gut interaction theory in TCM for spleen and stomach diseases still faces several challenges, such as difficulties in integrating TCM spleen-stomach theory with modern pathophysiology, lack of innovation in research concepts, and limitations in research methodologies. It is therefore proposed that multidisciplinary collaboration, multi-omics technologies, and targeted research approaches should be adopted to provide more comprehensive methods for basic research on TCM spleen and stomach diseases, thereby promoting the in-depth development of brain-gut interaction theory.
5.Dissecting antibody-mediated natural killer cell effects reveals a cytotoxic CX3CR1+KLRC2–CD16hi subset linked to hepatitis B virus outcomes
Libo TANG ; Yuhao WANG ; Zihan JIN ; Yurong GU ; Zhaofeng ZENG ; Linnan SONG ; Xuan YI ; Lingtao ZHANG ; Yujing ZHANG ; Weiying HE ; Liping WANG ; Weixin HE ; Jianru SUN ; Xiaoqin LAN ; Xiangyong LI ; Shihong ZHONG ; Yongyin LI
Clinical and Molecular Hepatology 2026;32(2):683-705
Background/Aims:
Natural killer (NK) cell function is generally considered dampened in chronic hepatitis B virus (HBV) infection; however, the NK cell pool exhibits phenotypic and functional heterogeneity, and the antibody--mediated effect of NK cells remains less characterized. This study evaluated the dynamic changes in antibody-mediated NK cell responses and the involvement of distinct NK subsets across disease stages and during antiviral treatment.
Methods:
A T-cell receptor-like antibody specific for the HBV core 18–27 peptide (cTCRL-Ab) was used to determine the antibody-mediated effect of NK cells, and an array of NK cell surface markers were analyzed in cross-sectional and longitudinal cohorts of patients with chronic HBV infection. Single-cell RNA sequencing (scRNA-seq) was performed to identify the heterogeneity of NK subsets.
Results:
The cTCRL-Ab enabled the detection of NK cell cytolytic activity and IFNγ production. Notably, cTCRL-Ab-mediated NK cell responses were compromised in chronically HBV-infected patients, particularly in those receiving pegylated interferon-α (Peg-IFNα), which was associated with the downregulation of CD16 expression. Correspondingly, Peg-IFNα inhibited cTCRL-Ab-mediated NK cell function by reducing CD16 expression in vitro. scRNA-seq revealed that CD16 downregulation occurred mainly within a dysfunctional CD16hi NK subset exhibiting exhaustion properties. In contrast, an activated CD16hiNK subpopulation (CX3CR1⁺KLRC2–CD16hi) with high cytotoxicity was enriched in patients who experienced favorable treatment responses. Furthermore, the intrahepatic CX3CR1+KLRC2–CD16hi subset tended to exhibit functional restoration in HBsAg-loss individuals.
Conclusions
Our data contribute to the understanding of antibody-mediated responses of NK cells in chronic HBV infection, and highlight a previously unappreciated functional CX3CR1+KLRC2–CD16hiNK subset as a potential therapeutic target.
6.Signaling Pathways Related to Polycystic Ovary Syndrome and Regulation by Traditional Chinese Medicine: A Review
Manman YAO ; Liya MA ; Dawei ZHANG ; Xuelin ZHANG ; Xuan ZHOU ; Yu TANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(3):301-312
Polycystic ovary syndrome (PCOS) is one of the most prevalent gynecological diseases, and its incidence is increasing year by year, seriously affecting the physical and mental health of female patients. The pathogenesis of this disease is complex and has not been fully clarified. At present, PCOS is mainly treated by Western medicine, which, however, has poor efficacy and induces various adverse reactions. Therefore, developing safe and effective therapies has become a difficult problem that needs to be solved. Studies have confirmed that traditional Chinese medicine (TCM) can regulate phosphatidylinositol 3-kinase/protein kinase B(PI3K/Akt), mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK), Toll-like receptor 4/nuclear factor-κB (TLR4/NF-κB), transforming growth factor-β (TGF-β)/Smads, secreted glycoprotein/β-catenin (Wnt/β-catenin), adenosine monophosphate-activated protein kinase (AMPK), and advanced glycation endproduct/receptor for advanced glycation endproducts (AGE/RAGE) signaling pathways to ameliorate insulin resistance, inhibit inflammation and oxidative stress, regulate endocrine hormone disorders, and intervene in apoptosis and autophagy, thus alleviating the symptoms, slowing down the disease progression, and improving the ovarian function. The treatment of PCOS with TCM has demonstrated definite effects and high safety. Therefore, exploring this disease from cellular and molecular perspectives can provide a theoretical basis for its clinical treatment and new drug development. However, there is a lack of systematic reviews on the modulation of relevant signaling pathways by TCM in the treatment of PCOS. This article reviews the research progress in the treatment of PCOS with the active ingredients and compound prescriptions of TCM by regulating relevant signaling pathways in recent years, with the aim of providing evidence to support the promotion of TCM for treating PCOS in the future.
7.Association of TNFRSF11B gene rs2073618 and rs3102735 polymorphisms with susceptibility to Gastric cancer.
Xuan TANG ; Dandan GONG ; Shiqi ZHANG ; Xiaoyan WANG ; Yu FAN
Chinese Journal of Medical Genetics 2025;42(5):579-586
OBJECTIVE:
To explore the association between single nucleotide polymorphism (SNP) rs2073618 and rs3102735 of the TNFRSF11B gene and the susceptibility to gastric cancer.
METHODS:
A case-control study was conducted. A total of 577 patients with primary gastric cancer treated at Zhenjiang First People's Hospital from May 2013 to June 2017 were selected as the case group, and 678 healthy individuals who underwent physical examinations at the same hospital during the same period were enrolled as the control group. Blood samples were collected from both groups, and genomic DNA was extracted. The target gene fragments were amplified using PCR, and genotyping was performed using the Snapshot technique. Statistical analysis was conducted using SPSS v2.0 software. This study was approved by the Medical Ethics Committee of the Zhenjiang First People's Hospital (Ethics No. 20150083).
RESULTS:
The smoking rate was significantly higher in the case group than in the control group (P = 0.006). The T>C polymorphism at the rs3102735 locus of the TNFRSF11B gene was significantly associated with an increased risk of gastric cancer (CC vs. TT: OR = 2.164, 95%CI = 1.063~4.406, P = 0.030). In contrast, the rs2073618 polymorphism did not show a significant association with gastric cancer susceptibility (P > 0.05). Stratified analysis by age, gender, smoking status, and drinking status revealed no significant association between the rs2073618 polymorphism and gastric cancer susceptibility (P > 0.05). However, the rs3102735 polymorphism showed a significant association with gastric cancer risk in individuals over 62 years of age (CC vs. TT: OR = 5.44, 95%CI = 1.54~19.21, P = 0.003).
CONCLUSION
The rs3102735 polymorphism of the TNFRSF11B gene may be associated with susceptibility to gastric cancer, particularly in older populations. This polymorphism could serve as a potential indicator for identifying high-risk groups for gastric cancer.
Humans
;
Stomach Neoplasms/genetics*
;
Polymorphism, Single Nucleotide
;
Male
;
Female
;
Genetic Predisposition to Disease
;
Middle Aged
;
Case-Control Studies
;
Osteoprotegerin/genetics*
;
Aged
;
Adult
;
Genotype
8.Alternation of ghrelin in patients with acute pancreatitis and application of gastric slow waves in predicting the severity of pancreatitis
Mingyu TANG ; Hongjun XIE ; Jialei XUAN ; Qin SHEN ; Lei GONG ; Gaojue WU
Chinese Journal of Hepatobiliary Surgery 2025;31(5):352-357
Objective:To study the alternation of plasma ghrelin in patients with acute pancreatitis (AP) and to evaluate the efficacy of gastric slow wave analysis in predicting the severity of AP.Methods:Clinical data and blood samples of 129 patients with AP and 16 individuals for normal physical examination in the Department of Gastroenterology, Jiangnan University Affiliated Central Hospital (Wuxi No.2 People's Hospital) from September 2018 to August 2024 were prospectively collected. Individuals with normal physical examinations were included in the normal control group, including 9 males and 7 females, aged (50.9±14.2) years. The finally enrolled 125 patients with AP included 82 males and 43 females, aged (49.5±15.6) years, which were grouped according to disease severity. Mild AP (MAP) was included in the MAP group ( n=84), while moderate to severe and severe acute AP were included in the non-MAP group ( n=41). The surface gastrogram of all AP patients was detected on the 2nd and 4th day after admission. The slow waves of gastric electricity were recorded, and gastric growth hormone-releasing hormone, C-reactive protein (CRP), etc. were detected simultaneously. Univariate and multivariate logistic regression analyses were conducted to analyze the influencing factors of AP severity (MAP or non-MAP). Receiver operating characteristic (ROC) curve was used to evaluate the indicators in predicting the severity of AP. Results:The levels of gastric growth hormone-releasing hormone in both the non-MAP group and MAP group on the 2nd and 4th day after admission were lower than those in normal control group (all P<0.05). The percentages of normal gastric electrical slow waves in the first and fourth leads, the mean percentages of normal gastric electrical slow waves in the four leads, and the main frequency on the 2nd day of admission in the non-MAP group were lower than those in the normal control group, and the main power and C-reactive protein were higher than those in the MAP group, the differences were statistically significant (all P<0.05). Multivariate logistic regression analysis showed the percentage of normal gastric electrical slow wave in the first lead on the 2nd day of admission ( OR=0.914, 95% CI: 0.869-0.961, P=0.001) and CRP ( OR=1.008, 95% CI: 1.002-1.013, P=0.012) were the influencing factors of the severity of AP. The area under the ROC curve of the percentage of normal gastric electrical slow wave in the first lead on the 2nd day of admission in predicting the severity of AP was 0.705, with a sensitivity of 97.6% and a specificity of 35.7%. Conclusion:The plasma gastric growth hormone-releasing hormone in patients with AP decreases in the early stage. The low percentage of normal slow waves in the first lead of gastric electrocardiogram on the 2nd day of admission is a risk factor for the severity of AP and can be used for the early prediction of the severity.
9.Association of TNFRSF11B gene rs2073618 and rs3102735 polymorphisms with susceptibility to Gastric cancer
Xuan TANG ; Dandan GONG ; Shiqi ZHANG ; Xiaoyan WANG ; Yu FAN
Chinese Journal of Medical Genetics 2025;42(5):579-586
Objective:To explore the association between single nucleotide polymorphism (SNP) rs2073618 and rs3102735 of the TNFRSF11B gene and the susceptibility to gastric cancer. Methods:A case-control study was conducted. A total of 577 patients with primary gastric cancer treated at Zhenjiang First People′s Hospital from May 2013 to June 2017 were selected as the case group, and 678 healthy individuals who underwent physical examinations at the same hospital during the same period were enrolled as the control group. Blood samples were collected from both groups, and genomic DNA was extracted. The target gene fragments were amplified using PCR, and genotyping was performed using the Snapshot technique. Statistical analysis was conducted using SPSS v2.0 software. This study was approved by the Medical Ethics Committee of the Zhenjiang First People′s Hospital (Ethics No. 20150083). Results:① The smoking rate was significantly higher in the case group than in the control group ( P=0.006). ② The T > C polymorphism at the rs3102735 locus of the TNFRSF11B gene was significantly associated with an increased risk of gastric cancer (CC vs. TT: OR=2.164, 95% CI=1.063~4.406, P=0.030). In contrast, the rs2073618 polymorphism did not show a significant association with gastric cancer susceptibility ( P>0.05). ③ Stratified analysis by age, gender, smoking status, and drinking status revealed no significant association between the rs2073618 polymorphism and gastric cancer susceptibility ( P>0.05). However, the rs3102735 polymorphism showed a significant association with gastric cancer risk in individuals over 62 years of age (CC vs. TT: OR=5.44, 95% CI=1.54~19.21, P=0.003). Conclusion:The rs3102735 polymorphism of the TNFRSF11B gene may be associated with susceptibility to gastric cancer, particularly in older populations. This polymorphism could serve as a potential indicator for identifying high-risk groups for gastric cancer.
10.Analysis of genetic characteristics of varicella-zoster virus in Anhui province from 2022 to 2023
Shujie ZHOU ; Xiaodong CHENG ; Ning ZHANG ; Feiyang SONG ; Kun XUAN ; Tao LI ; Yu CHAI ; Binbing WANG ; Jihai TANG
Chinese Journal of Experimental and Clinical Virology 2025;39(5):582-587
Objective:To analyze the genetic characteristics of varicella-zoster virus(VZV)in Anhui province from 2022 to 2023.Methods:Vesicle fluid and throat swab samples were collected from suspected varicella patients in Anhui province during 2022—2023. Fresh vesicle fluid samples were selected for VZV isolation,and real-time PCR was used for VZV nucleic acid detection. For positive samples,the region containing five single nucleotide polymorphism(SNP)sites in the open reading frame 22(ORF22)fragment was amplified,and PCR products were sequenced to identify viral genotypes. Reference sequences of VZV genotypes were downloaded from GenBank,sequence alignment and phylogenetic tree analysis were performed using Sequencher and MEGA5.0 software. Additionally,four SNP sites in ORF38 and ORF62 fragments were detected to distinguish vaccine strains from wild strains.Results:Among 96 samples from suspected varicella cases,55 of 61 vesicle fluid samples and 21 of 35 throat swab samples were positive for VZV nucleic acid. The virus isolation rate for vesicle fluid samples was 14.75%. Genetic sequencing was successful for 51 strains,all of which were wild strains belonging to the clade 2 genetic branch. Compared with the reference strain of clade 2,the nucleotide and amino acid homologies of the ORF22 fragment were 99.46%~100% and 98.39%~100%,respectively. One strain(2023VZVCZ45)exhibited an A→G mutation at site 37916.Conclusion:The prevalent VZV strains detected in Anhui province during 2022—2023 were all wild strains of clade 2,with no vaccine-associated cases identified.


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