1.Mechanism of Yishen Tongluo Formula regulating the TLR4/MyD88/NF-κB signaling pathway to ameliorate pyroptosis in diabetic nephropathy mice
Yifei ZHANG ; Zijing CAO ; Zeyu ZHANG ; Xuehui BAI ; Jingyi TANG ; Junyu XI ; Jiayi WANG ; Yiran XIE ; Yuqi WU ; Xi GUO ; Zhongjie LIU ; Weijing LIU
Journal of Beijing University of Traditional Chinese Medicine 2025;48(1):21-33
Objective:
To investigate the mechanism of Yishen Tongluo Formula in ameliorating renal pyroptosis in diabetic nephropathy mice by regulating the toll-like receptor 4 (TLR4)/myeloid differentiation factor 88 (MyD88)/nuclear factor-κB (NF-κB) signaling pathway.
Methods:
Sixty C57BL/6 male mice were randomly divided into control (10 mice) and intervention groups (50 mice) using random number table method. The diabetes nephropathy model was established by intraperitoneally injecting streptozotocin(50 mg/kg). After modeling, the intervention group was further divided into model, semaglutide (40 μg/kg), and high-, medium-, and low-dose Yishen Tongluo Formula groups (15.6, 7.8, and 3.9 g/kg, respectively) using random number table method. The high-, medium-, and low-dose Yishen Tongluo Formula groups were administered corresponding doses of medication by gavage, the semaglutide group received a subcutaneous injection of semaglutide injection, and the control group and model groups were administered distilled water by gavage for 12 consecutive weeks. Random blood glucose levels of mice in each group were monitored, and the 24-h urinary protein content was measured using biochemical method every 4 weeks; after treatment, the serum creatinine and urea nitrogen levels were measured using biochemical method. The weight of the kidneys was measured, and the renal index was calculated. Hematoxylin and eosin, periodic acid-Schiff, periodic Schiff-methenamine, and Masson staining were used to observe the pathological changes in renal tissue. An enzyme-linked immunosorbent assay was used to detect urinary β2-microglobulin (β2-MG), neutrophil gelatinase-associated lipocalin (NGAL), and kidney injury molecule-1 (KIM-1) levels. Western blotting and real-time fluorescence PCR were used to detect the relative protein and mRNA expression levels of nucleotide-binding domain leucine-rich repeat and pyrin domain-containing receptor 3 (NLRP3), Caspase-1, gasdermin D (GSDMD), interleukin-1β (IL-1β), and interleukin-18 (IL-18) in renal tissue. Immunohistochemistry was used to detect the proportion of protein staining area of the TLR4, MyD88, and NF-κB in renal tissue.
Results:
Compared with the control group, the random blood glucose, 24-h urinary protein, serum creatinine, urea nitrogen, and renal index of the model group increased, and the urine β2-MG, NGAL, and KIM-1 levels increased. The relative protein and mRNA expression levels of NLRP3, Caspase-1, GSDMD, IL-1β, and IL-18 in renal tissue increased, and the proportion of TLR4, MyD88, and NF-κB protein positive staining areas increased (P<0.05). Pathological changes such as glomerular hypertrophy were observed in the renal tissue of the model group. Compared with the model group, the Yishen Tongluo Formula high-dose group showed a decrease in random blood glucose after 12 weeks of treatment (P<0.05). The Yishen Tongluo Formula high- and medium-dose groups showed a decrease in 24-h urinary protein, creatinine, urea nitrogen, and renal index, as well as decreased β2-MG, NGAL, and KIM-1 levels. NLRP3, Caspase-1, GSDMD, IL-1 β, and IL-18 relative protein and mRNA expression levels were also reduced, and the proportion of TLR4, MyD88, and NF-κB protein positive staining areas was reduced (P<0.05). Pathological damage to renal tissue was ameliorated.
Conclusion
Yishen Tongluo Formula may exert protective renal effects by inhibiting renal pyroptosis and alleviating tubular interstitial injury in diabetic nephropathy mice by regulating the TLR4/MyD88/NF-κB signaling pathway.
2.Comparative study on the mechanism and efficacy of Zexie tang traditional decoction and formula granules in reducing lipid accumulation
Yuanyuan GUO ; Lina MA ; Huqin LIN ; Changhui ZHENG ; Jiayi LI ; Zhijun LI ; Junling CAO
China Pharmacy 2025;36(10):1202-1208
OBJECTIVE To explore the effect and mechanism of Zexie tang (ZXT) on reducing lipid accumulation through network pharmacology, and compare the difference of traditional decoction versus formula granules. METHODS The active components and targets of ZXT were identified using TCMSP and SwissTargetPrediction databases. GeneCards, OMIM, DisGeNET and TTD databases were used to analyze the related targets of non-alcoholic fatty liver disease (NAFLD); protein-protein interaction network model was constructed by String database;“ ZXT-NAFLD target-pathway” network diagram was constructed by using CytoScape software; target enrichment analysis was performed by using Metascape platform. Fat accumulation model of human hepatocellular carcinoma HepG2 cells was established to observe the effects of traditional decoction and formula granules of ZXT on lipid accumulation of cells. RESULTS Alisol B, alisol C, 1-monolinolein and alisol B monoacetate were the key active components of ZXT in the treatment of NAFLD. The core targets included MDM2, MAPK1, PIK3CB, PRKCQ and MAPK14, etc. The core signaling pathways included endocrine resistance, insulin resistance and Th17 cell differentiation. Compared with model group, except for the Zexie formula granules group and Baizhu formula granules group, the absorbance values in all other administration groups were significantly decreased (P<0.01); the absorbance value of Baizhu traditional decoction group was significantly higher than that of ZXT traditional decoction group (P<0.01); the absorbance values of Zexie formula granule group and Baizhu formula granule group were significantly higher than that of ZXT formula granule group (P<0.01); the absorbance value of Zexie formula granule group was significantly higher than that of Zexie traditional decoction group (P<0.01); the absorbance value of Baizhu formula granule group was significantly higher than that of Baizhu traditional decoction group (P<0.01). CONCLUSIONS ZXT reduces lipid accumulation of human hepatocellular carcinoma cells through multiple components, multiple target and multiple pathways, and its traditional decoction and formula granules exhibit slightly different lipid-lowering effects.
3.Application of Medicinal and Edible Materials in Proactive Health and Technological Responses to Population Aging: A Review
Cuiying QIN ; Zuchang GUO ; Jie ZHANG ; Haiyan LI ; Jiayi WANG ; Qiuyan GUO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(15):258-267
In the strategic context of "healthy China", the concept of "medicine and food homology", rooted in the culture of traditional Chinese medicine (TCM), has received unprecedented attention. In response to population aging in China, the health of the elderly has become the focus of public health attention, and proactive health is the key to healthy aging. From the perspective of the application of medicinal and edible materials in proactive health and technological responses to population aging for the first time, this paper firstly provided a systematic overview of medicinal and edible materials and the policies related to proactive health. Second, it summarized the situation of modern technology that accelerates the research and development of medicinal and edible products, as well as the current situation of various modern biotechnologies that reveal the mechanism of action of medicinal and edible materials. Third, it discussed the application scenarios of medicinal and edible materials in proactive health and technological responses to population aging, as well as the future research and development of medicinal and edible materials. By exploring in depth the unique value and importance of medicinal and edible materials, the paper lays a theoretical foundation for improving the health care capabilities of TCM and contributes new strategies derived from TCM to healthy aging.
4.Risk factors for pyogenic liver abscess comorbid with sepsis and construction of a nomogram prediction model
Jiayi GUO ; Haiquan KANG ; Mengjiao WANG ; Deyang XI ; Xuebing YAN ; Chunyang LI
Journal of Clinical Hepatology 2025;41(6):1143-1149
ObjectiveTo investigate the risk factors for pyogenic liver abscess (PLA) comorbid with sepsis by analyzing clinical features, and to construct a predictive model. MethodsA retrospective analysis was performed for 489 patients who were hospitalized and diagnosed with PLA in The Affiliated Hospital of Xuzhou Medical University from January 2019 to December 2023, and according to the presence or absence of sepsis, they were divided into sepsis group with 306 patients and non-sepsis group with 183 patients. Related data were collected, including general information, laboratory markers, and outcome measures. The patients were further divided into a training set of 342 patients and a validation set of 147 patients at a ratio of 7∶3, and the training set was used for screening of variables and construction of a predictive model, while the validation set was used to test the performance of the model. An LASSO regression analysis was used for the screening of variables, and a multivariate Logistic regression analysis was used to construct the predictive model and plot a nomogram. The calibration curve, the receiver operating characteristic (ROC) curve, and the decision curve analysis were used for the validation of the model, and internal validation was performed for assessment. The independent-samples t test was used for comparison of normally distributed continuous data between two groups, and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between two groups; the chi-square test was used for comparison of categorical variables between groups. ResultsThere were significant differences between the sepsis group and the non-sepsis group in pulse rate, mean arterial pressure, duration pf symptoms, comorbidity of liver cirrhosis or malignant tumor, leukocyte count, neutrophil count, lymphocyte count, platelet count (PLT), activated partial thromboplastin time, fibrinogen, C-reactive protein, aspartate aminotransferase, alanine aminotransferase, albumin, total bilirubin (TBil), creatinine, potassium, and prognostic nutritional index (PNI) (all P<0.05). In the training set, the LASSO regression analysis identified four predictive factors of pulse rate, PLT, TBil and PNI, and the multivariate Logistic regression analysis showed that pulse rate (odds ratio [OR]=1.033, 95% confidence interval [CI]: 1.006 — 1.061, P=0.018), PLT (OR=0.981, 95%CI: 0.975 — 0.987, P<0.001), TBil (OR=1.086, 95%CI: 1.053 — 1.125, P<0.001), and PNI (OR=0.935, 95%CI: 0.882 — 0.988, P=0.019) were independent influencing factors for the risk of sepsis in patients with PLA. The model constructed based on these factors showed a good predictive ability, with an area under the ROC curve of 0.948 (95%CI: 0.923 — 0.973) in the training set and 0.912 (95%CI: 0.848 — 0.976) in the validation set. The decision curve analysis showed that the model has a good net benefit within the range of 0.3 — 0.9 for threshold probability. ConclusionThe nomogram prediction model constructed based on pulse rate, PLT, TBil, and PNI has a certain clinical value and can well predict the risk of sepsis in patients with PLA.
5.Correlation between depressive symptom and traditional Chinese medicine constitution among school aged children and adolescents
Chinese Journal of School Health 2025;46(9):1222-1225
Objective:
To explore the correlation between traditional Chinese medicine (TCM) constitution and depressive symptom among school aged children and adolescents, so as to provide evidences for informing constitution based regulation and prevention of depressive symptom.
Methods:
From June to December 2024, a total of 4 729 students aged 6-14 were recruited by cluster random sampling from 10 primary schools in Baoding (Hebei Province), Heze and Liaocheng (Shandong Province). General information, TCM constitution and depressive symptom were collected. Restricted cubic spline (RCS) models were used to analyze related factors and threshold effects of depressive symptom. Binary Logistic regression was applied to examine the association between depressive symptom and TCM constitution, with subgroup analyses conducted.
Results:
The detection rate of depressive symptom among the included children and adolescents was 25.82%. RCS analyses indicated non linear associations between depressive symptom and age (inflection point at 10 years old), bedtime (inflection point at 22:00), and wake up time (inflection point at 6:30 ) (all P non linearity <0.01). Linear associations were observed with body mass index (BMI) and sleep duration (all P non linearity > 0.05 ). After adjusting for covariates such as age, BMI and sleep status, binary Logistic regression analyses showed that Yin deficient constitution ( OR =1.26, 95% CI =1.09-1.45) and Phlegm-dampness constitution ( OR =1.42, 95% CI =1.11-1.82) were significantly associated with depressive symptom among children and adolescents (all P <0.05).
Conclusions
Depressive symptom among school aged children and adolescents is primarily associated with Yin deficiency and Phlegm dampness constitutions in TCM constitution. Active attention should be paid to susceptible TCM constitution among children and adolescents. Targeted health guidance and interventions should be implemented to improve TCM constitution health status for preventing the occurrence of depressive symptom.
6.Modified Xiaoyaosan Alleviates Depression-like Behaviors by Regulating Activation of Hippocampal Microglia Cells in Rat Model of Juvenile Depression
Jiayi SHI ; Yun XIANG ; Ziyang ZHOU ; Dahua WU ; Feng QIU ; Chang LEI ; Hongyu ZENG ; Kaimei TAN ; Hongqing ZHAO ; Dong YANG ; Yuhong WANG ; Pengxiao GUO ; Xiuli ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(5):46-56
ObjectiveTo investigate the mechanism of Baihuan Xiaoyao Decoction (Xiaoyaosan added with Lilii Bulbus and Albiziae Cortex) in alleviating depression-like behaviors of juvenile rats by regulating the polarization of microglia. MethodSixty juvenile SD rats were randomized into normal control, model, fluoxetine, and low-, medium-, and high-dose (5.36, 10.71, 21.42 g·kg-1, respectively) Baihuan Xiaoyao decoction groups. The rat model of juvenile depression was established by chronic unpredictable mild stress (CUMS). The sucrose preference test (SPT) was carried out to examine the sucrose preference of rats. Forced swimming test (FST) was carried out to measure the immobility time of rats. The open field test (OFT) was conducted to measure the total distance, the central distance, the number of horizontal crossings, and the frequency of rearing. Morris water maze (MWM) was used to measure the escape latency and the number of crossing the platform. The immunofluorescence assay was employed to detect the expression of inducible nitric oxide synthase (iNOS, the polarization marker of M1 microglia) and CD206 (the polarization marker of M2 microglia). Real-time polymerase chain reaction was employed to determine the mRNA levels of iNOS, CD206, pro-inflammatory cytokines [tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6] and anti-inflammatory cytokines (IL-4 and IL-10) in the hippocampus. Western blotting was employed to determine the protein levels of iNOS and CD206 in the hippocampus. The levels of IL-4 and IL-6 in the hippocampus were detected by enzyme-linked immunosorbent assay. ResultCompared with the normal control group, the model rats showed a reduction in sucrose preference (P<0.05), an increase in immobility time (P<0.05), decreased motor and exploratory behaviors (P<0.05), and weakened learning and spatial memory (P<0.05). In addition, the model rats showed up-regulated mRNA and protein levels of iNOS and mRNA levels of IL-1β, IL-6, and TNF-α (P<0.05). Compared with the model group, Baihuan Xiaoyao decoction increased the sucrose preference value (P<0.05), shortened the immobility time (P<0.01), increased the motor and exploratory behaviors (P<0.05), and improved the learning and spatial memory (P<0.01). Furthermore, the decoction down-regulated the positive expression and protein level of iNOS, lowered the levels of TNF-α, IL-1β, and IL-6 (P<0.01), promoted the positive expression of CD206, and elevated the levels of IL-4 and IL-10 (P<0.01) in the hippocampus of the high dose group. Moreover, the high-dose Baihuan Xiaoyao decoction group had higher sucrose preference value (P<0.01), shorter immobility time (P<0.01), longer central distance (P<0.01), stronger learning and spatial memory (P<0.01), higher positive expression and protein level of iNOS (P<0.01), lower levels of TNF-α, IL-1β, and IL-6 (P<0.05, P<0.01), lower positive expression and mRNA level of iNOS (P<0.05), and higher levels of IL-4 and IL-10 (P<0.05, P<0.01) than the fluoxetine group. ConclusionBaihuan Xiaoyao decoction can improve the depression-like behavior of juvenile rats by inhibiting the M1 polarization and promoting the M2 polarization of microglia in the hippocampus.
7.Construction and verification of nomogram prediction model for survival prognosis of patients with esophageal squamous cell carcinoma
Jiayi GUO ; Zhengyu SONG ; Haiping ZHANG ; Liwei ZHANG ; · ; Awut EDRIS
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2024;31(05):718-727
Objective To investigate the prognostic value of preoperative serum albumin-to-globulin ratio (AGR) and neutrophil-lymphocyte ratio (NLR) in the overall survival (OS) of patients with esophageal squamous cell carcinoma (ESCC), and to establish an individualized nomogram model and evaluate its efficacy, in order to provide a possible evaluation basis for the clinical treatment and postoperative follow-up of ESCC patients. Methods AGR, NLR, clinicopathological and follow-up data of ESCC patients diagnosed via pathology in the Department of Thoracic Surgery, The First Affiliated Hospital of Xinjiang Medical University from 2010 to 2017 were collected. The correlation between NLR/AGR and clinicopathological data were analyzed. Kaplan-Meier analysis and log-rank test were used for survival analysis. The optimal cut-off values of AGR and NLR were determined by X-tile software, and the patients were accordingly divided into a high-level group and a low-level group. At the same time, univariate and multivariate Cox regression analyses were used to identify independent risk factors affecting OS in the ESCC patients, and a nomogram prediction model was constructed and internally verified. The diagnostic efficacy of the model was evaluated by receiver operating characteristic (ROC) curve and calibration curve, and the clinical application value was evaluated by decision curve analysis. Results A total of 150 patients were included in this study, including 105 males and 45 females with a mean age of 62.3±9.3 years, and the follow-up time was 1-5 years. The 5-year OS rate of patients in the high-level AGR group was significantly higher than that in the low-level group (χ2=6.339, P=0.012), and the median OS of the two groups was 25 months and 12.5 months, respectively. The 5-year OS rate of patients in the high-level NLR group was significantly lower than that in the low-level NLR group (χ2=5.603, P=0.018), and the median OS of the two groups was 18 months and 39 months, respectively. Multivariate Cox analysis showed that AGR, NLR, T stage, lymph node metastasis, N stage, and differentiation were independent risk factors for the OS of ESCC patients. The C-index of the nomogram model was 0.689 [95%CI (0.640, 0.740)] after internal validation. The area under the ROC curve of predicting 1-, 3-, and 5-year OS rate was 0.773, 0.724 and 0.725, respectively. At the same time, the calibration curve and the decision curve suggest that the model had certain efficacy in predicting survival and prognosis. Conclusion Preoperative AGR and NLR are independent risk factors for ESCC patients. High level of AGR and low level of NLR may be associated with longer OS in the patients; the nomogram model based on AGR, NLR and clinicopathological features may be used as a method to predict the survival and prognosis of ESCC patients, which is expected to provide a reference for the development of personalized treatment for patients.
8.Mixed urinary incontinence:will urgency and urge urinary incontinence symptoms resolve after RMUS?
Jiayi LI ; Wenxin XU ; Qixiang SONG ; Lei XU ; Yiyuan GU ; Yunyue GUO ; Jieying WANG ; Wei XUE
Journal of Modern Urology 2024;29(8):713-718
Objective To explore the efficacy of retropubic midurethral synthetic sling(RMUS)in relieving urgency and urge urinary incontinence(UUI)symptoms in patients with mixed urinary incontinence(MUI).Methods Clinical data of 44 female MUI patients treated with RMUS during Jan.2018 and Dec.2020 in Shanghai Renji Hospital were retrospectively analyzed.All patients had positive results in stress test and Marshall-Marchetti test before operation,and 27 of them completed ICIQ-FLUTS-LF questionnaire.Urodynamic(UDS)tests suggested that 9 patients(20.5%)presented detrusor overactivity(DO).During RMUS procedure,the tension of the sling was adjusted based on the anatomical landmarks.The postoperative efficacy and improvement of urinary incontinence were analyzed.Results The patients aged(58.59±9.08)years,with a body mass index of 24.71±2.77.Among the 40 patients who completed telephone interview 2 years after surgery,the subjective cure rate was 85.0%(34/40).Among the 27 patients with records of questionnaires before and after surgery,there were significant differences in the incidence of urine leakage[100%(27/27)vs.18.5%(5/27)],stress urinary incontinence(SUI)[100%(27/27)vs.18.5%(5/27)]and UUI[70.4%(19/27)vs.29.6%(8/27)](P<0.05).However,no statistical differences were found regarding nocturia voiding episode(≥1 times),urgency,dysuria,hesitancy,strain to void,intermittent stream and enuresis(P>0.05).Based on preoperative UDS test,there were significant differences regarding the subjective cure rate in patients with or without preoperative DO[55.6%(5/9)vs.93.5%(29/31)],incidence of SUI[66.7%(4/6)vs.4.8%(1/21)],and UUI[66.7%(4/6)vs.19.0%(4/21)](P<0.05),while there was no statistical difference regarding urgency[66.7%(4/6)vs.33.3%(7/21)](P>0.05).Conclusion RMUS is effective in treating MUI patients with positive stress test and Marshall-Marchetti test results,which can relieve SUI and UUI symptoms,but has no effects on urgency symptoms.DO on preoperative urodynamics results in poorer subjective outcomes.
9.A Multicenter, Randomized, Double-blind, and Placebo-parallel Controlled Trial of Tibetan Medicine Ruyi Zhenbaowan in Treatment of Knee Osteoarthritis
Chunquan SUN ; Yanming XIE ; Jinghua GAO ; Weiheng CHEN ; Lianxin WANG ; Shangquan WANG ; Xiangdong TIAN ; Zujian XU ; Yuxin ZHENG ; Mingwang ZHOU ; Chungen LI ; Zhanwang XU ; Jiayi GUO ; Shuangqing DU ; Qigang CHEN ; Quan JI ; Zhiqiang BAI ; Jing XIAO ; Wanli QI ; Weiyi YANG ; Jingxiao ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(24):57-67
ObjectiveThis study aimed to evaluate the clinical efficacy of Ruyi Zhenbaowan(RYZBW)in the treatment of initial and early knee osteoarthritis (KOA) through a prospective multicenter,randomized,double-blind,and placebo-parallel controlled trial. MethodFrom October 13th, 2021 to December 25th, 2021, 240 KOA subjects meeting the acceptance criteria were enrolled in 15 sub-centers including Wangjing Hospital, Chinese Academy of Chinese Medical Sciences, and they were randomly divided into observation group and control group, with 120 cases in each group. The intervention measures for the observation group were RYZBW + health education, and the intervention measures for the control group were RYZBW placebo + health education. The intervention period in both groups was four weeks, and they were followed up for four weeks after the intervention. The primary outcome measure was the total score of Western Ontario and McMaster University Osteoarthritis Index score (WOMAC score), and the secondary outcome measures were the response rate of visual scale (VAS) pain score, WOMAC sub item scores (joint pain, joint stiffness, and joint function), quality of life (SF-12) score, and traditional Chinese medicine (TCM) syndrome score. Result(1) Efficacy evaluation. The marginal model results showed that the observation group was better than the control group in improving the WOMAC total score and WOMAC pain score in the treatment of KOA with RYZBW, and the difference was statistically significant (P<0.05). There was no significant difference between the two groups in improving VAS score response rate, WOMAC function score, WOMAC stiffness score, SF12-PCS (quality of life-physical health) score, SF12-MCS (quality of life-mental health) score, and TCM syndrome score. (2) Subgroup analysis. ① In terms of VAS score response rate, the response rate of the observation group was higher than that of the control group for subjects with baseline VAS score of (4, 5], and the difference was statistically significant (P<0.05). ② In terms of TCM syndrome score, for subjects aged [56, 60] and [61, 65], the decrease in total TCM syndrome score in the observation group was better than that in the control group, and the difference was statistically significant (P<0.05). ConclusionTibetan medicine RYZBW has good clinical efficacy in improving WOMAC total score, VAS score response rate, WOMAC pain score, WOMAC function score, and TCM syndrome score for patients with initial and early KOA, which can fill the lack of Tibetan medicine RYZBW in the treatment of KOA and make a demonstration study for the inheritance and development of ethnic medicine.
10.Applications of CNVPLUS ?-array in diagnosis of DMD gene
Caiqin GUO ; Danfeng FANG ; Tingting YANG ; Yi LIU ; Jiayi ZHU ; Yongguo YU
Chinese Journal of Preventive Medicine 2024;58(4):508-515
To explore the value of CNVPLUS ?-array in the diagnosis of the DMD gene. A retrospective study was performed on 96 children who were clinically diagnosed with Duchenne or Becker muscular dystrophies(DMD/BMD) at the Department of Pediatric Endocrinology and Genetics of Xinhua Hospital affiliated to Shanghai Jiaotong University School of Medicine from January 2014 to March 2023. DNA was extracted from these children′s peripheral blood and divided into two parts. Variations of the DMD gene were detected by using CNVPLUS ?-array and sequential testing of MLPA—NGS—Sanger. In the sequential method, single exon deletions detected by MLPA were first verified by polymerase chain reaction (PCR) and then were tested by Sanger′s sequencing if PCR results were normal. The results showed that, among 96 samples, 91 cases with the pathogenic variation of the DMD gene were detected by the CNVPLUS ?-array, including 76 cases with large deletion/duplication (copy number variation, CNV) and 15 cases with small variation (single nucleotide variant or small insertion/deletion, SNV/Indel). All samples were tested and diagnosed within 5 days. In contrast, 76 cases with pathogenic CNV and 20 cases with pathogenic SNV/Indel were detected in the DMD gene by sequential method. However, all of the experiments and diagnoses were completed within 48 days. Moreover, 5 cases with SNV/Indel in the DMD gene were correctly clustered after the operation mode was optimized. In summary, as a new micro-array integrating CNV and SNV probes, CNVPLUS ?-array can detect CNV and SNV/Indel in the DMD gene simultaneously while the application of CNVPLUS ?-array could save a lot of time and manpower. CNVPLUS ?-array had an excellent diagnostic performance for CNV of the DMD gene. As for SNV/Indel, the diagnostic performance was slightly poor and the operation mode should be optimized. If necessary, other testing technologies should be supplemented to reduce the risk of missed diagnosis.


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