1.Effects of compatibility ratio and processing method on contents of nine constituents in combination use of Toosendan Fructus and Foeniculi Fructus
Jian-Zhong HOU ; Shun-Juan ZHU ; Yao LI ; Xiao-Peng WANG ; Jian-Ming HAO ; Yun-Fei CAO
Chinese Traditional Patent Medicine 2024;46(1):156-161
		                        		
		                        			
		                        			AIM To investigate the effects of different compatibility ratios and processing method on the content of rutin,isoquercetin,ferulic acid,quercetin,isotoosendanin,kaempferol,toosendanin,α-pinene,trans-anethole in the combination use of Toosendan Fructus and Foeniculi Fructus,and to explore the optimal compatibility ratio for its use.METHODS The analysis of HPLC-DAD was performed on a 30℃thermostatic ZORBAX SB C18 column(4.6 mm×250 mm,5 μm),with the mobile phase comprising of acetonitrile-0.1%phosphoric acid flowing at 1.0 mL/min in a gradient elution manner,and the use of DAD detector.SPSS 24.0 software was used to analyze the data differences.RESULTS Nine constituents showed good linear relationships within their own ranges(r≥0.999 1),whose average recoveries were 96.19%-103.13%with the RSDs of 1.86%-2.67%.Generally higher total content of nine constituents were detected in the combination use groups when Toosendan Fructus-Foeniculi Fructus were at ratios of 1 ∶ 1,1 ∶ 2,and 2 ∶ 1 than those single uses(P<0.05),and among which the 1 ∶ 1 ratio contributed the highest total content.After salt processing,decreased content of toosendanin and isotoosendanin,α-pinene and trans-anethole(P<0.05,P<0.01)),increased isoquercetin content(P<0.01),and no significant content changes of other ingredients were detected.CONCLUSION Through this method of high accuracy and good reproducibility,we learn that the combination use of Toosendan Fructus and Foeniculi Fructus promotes the dissolution of the nine constituents,and the maximum content is achieved at ratio of 1 ∶ 1.
		                        		
		                        		
		                        		
		                        	
2.Clinical analysis of 18 cases of listeriosis during pregnancy
Min HU ; Fang WANG ; Yi-Shun ZHANG ; Fang HAN ; Xiao-Hui ZHANG ; Shuang-Yan ZHOU ; Hao LI
Chinese Journal of Infection Control 2024;23(6):706-711
		                        		
		                        			
		                        			Objective To evaluate the clinical and laboratory characteristics of listeriosis in patients during preg-nancy,and improve the understanding on the disease.Methods Clinical characteristics and laboratory detection re-sults of 18 pregnant women with gestational listeriosis admitted to two hospitals in Shanxi from 2012 to 2023 were analyzed retrospectively.Results Among the 18 pregnant women,1,3 and 14 cases developed listeriosis in the ear-ly,middle and late pregnancy,respectively(including 2 cases of dichorionic diamniotic twin pregnancy).The main clinical manifestations were fever(n=17,94.44%),accompanied by vaginal bleeding(n=5,27.78%),abdominal pain(n=4,22.22%),and headache(n=2,11.11%).White blood cell count,neutrophil percentage,and procal-citonin level in peripheral blood of pregnant women all increased.There were 1 spontaneous abortion during early pregnancy,3 deaths during middle pregnancy,and 10 survival during late pregnancy.All pregnant women reco-vered and were discharged from hospital.Specimens with high isolation rate of Listeria monocytogenes(LM)were uterine secretion(n=11,61.11%)and whole blood(n=10,55.55%)of pregnancy women.Among the 17 new-borns of 18 pregnant women,LM was isolated from 4(23.53%)pharyngeal tracheal secretion specimens and 3(17.65%)whole blood specimens.10 cases out of 13 revealed chorioamnionitis via pathology examination of placen-ta.Antimicrobial susceptibility testing results of 15 LM strains showed that the susceptibility rates to ampicillin,compound sulfamethoxazole,and meropenem were all 100%,and the susceptibility rates to penicillin and erythro-mycin were both 93.33%.Conclusion Listeriosis during pregnancy lacks specific clinical characteristics and is prone to be misdiagnosed.The incidence of adverse pregnancy outcomes is high.The survival rate of fetus in late pregnancy is high.Empirical anti-infection treatment during early pregnancy should cover LM infection.
		                        		
		                        		
		                        		
		                        	
3.Prevention strategy for intracranial infection related to external cerebro-spinal fluid drainage tube based on evidence summary
Xiao-Ju MIAO ; Xian LUO ; Zhong-Min FU ; Jun WANG ; Shun-Jun ZHAO ; Li DING ; Qing-Qing WU ; Bo CHEN ; Shun-Wu XIAO
Chinese Journal of Infection Control 2024;23(9):1070-1076
		                        		
		                        			
		                        			Objective To retrieve and extract the best evidence for preventing intracranial infections related to ex-ternal cerebrospinal fluid(CSF)drainage,and provide evidence-based support for reducing the incidence of intracra-nial infection caused by external CSF drainage.Methods Evidence-based care issues were determined according to PIPOST,and the best evidence on intracranial infection related to external CSF drainage tube was retrieved from top to bottom.The literature retrieval period was 2013-2023.Quality control of the literatures,as well as extraction and summary of the evidence were carried out by 2 trained graduate students.Results A total of 17 literatures were included in the analysis,including 3 guidelines,5 expert consensus,8 systematic reviews,and 1 randomized con-trolled trial.Management strategies from 3 dimensions(pre-catheterization,in-catheterization and post-catheteriza-tion)were obtained,including 20 pieces of evidence for preventing intracranial infection,such as preparation for ex-ternal CSF drainage tube,precautions during catheterization,and post-catheterization disposal.Conclusion There are differences in the management of external CSF drainage tube in clinical practice.It is necessary to develop uni-fied,standardized,and rational bundle strategies to prevent intracranial infection,so as to reduce the incidence of catheter-related intracranial infection.
		                        		
		                        		
		                        		
		                        	
4.Correlation of DNA Damage Repair Gene FANCI with Prognosis and Immune Infiltration of Hepatocellular Carcinoma
Ying YOU ; Mei-hua MEI ; Ning-xin TAN ; Yi-li CHEN ; Pei-dong CHI ; Xiao-shun HE ; Jun-qi HUANG
Journal of Sun Yat-sen University(Medical Sciences) 2023;44(1):51-62
		                        		
		                        			
		                        			ObjectiveTo evaluate the expression level of DNA damage repair gene FANCI in hepatocellular carcinoma (HCC) and its relationship with prognosis, clinical stage and immune infiltration. MethodsIn this study, TCGA, GTEx, TIMER2.0, HPA database and qRT-PCR, western blot and immunohistochemistry were used to analyze the expression of FANCI in HCC and its correlation with different clinical stages; Kaplan-Meier Plotter database was used to explore the relationship between FANCI and the prognosis of HCC; the TISIDB database was used to analyze the relationship between FANCI and immune cell infiltration and immune checkpoints in HCC; the STRING database was used to detect the protein binding with FANCI; the TCGA and GTEx databases were used for GO and KEGG enrichment analysis; Cell experiments were used to explore the role of FANCI in HCC. ResultsCompared with normal tissues, the mRNA and protein expression levels of FANCI in tumor tissues were up-regulated (P<0.001); and HCC patients with high expression of FANCI had poor prognosis (P<0.001); the expression of FANCI in tumor tissues was positively correlated with the number of activated CD4+ T cells, the number of Th2 cells and the expression of immune checkpoints, and B-cell and macrophage infiltration was significantly lower in the FANCI high expression group (P<0.01); GO and KEGG enrichment analysis showed that FANCI-related genes were enriched in various biological processes such as amino acid transmembrane transporter activity; Cell experiments showed that knockdown of FANCI could inhibit the proliferation, invasion and migration of HCC (P<0.05). ConclusionsFANCI is highly expressed in hepatocellular carcinoma tissues, which may play a role in suppressing anti-tumor immunity and acting on pathways such as amino acid transmembrane transport, and is associated with poor prognosis. The proliferation, invasion and migration ability of hepatocellular carcinoma are inhibited after knocking down FANCI. 
		                        		
		                        		
		                        		
		                        	
5.Association between semen collection time and semen parameters: an observational study.
Shun BAI ; Xian-Chao DOU ; Hao-Lin QI ; Yan-Song ZHU ; Yin-Tao ZHANG ; Yi-Xun LIU ; Xue-Chun HU ; Cheng CAO ; Xian-Hong TONG ; Bo XU ; Li-Min WU ; Xiao-Hua JIANG
Asian Journal of Andrology 2023;25(3):339-344
		                        		
		                        			
		                        			The process of semen collection plays a key role in the quality of semen specimens. However, the association between semen collection time and semen quality is still unclear. In this study, ejaculates by masturbation from 746 subfertile men or healthy men who underwent semen analysis were examined. The median (interquartile range) semen collection time for all participants was 7.0 (5.0-11.0) min, and the median time taken for semen collection was lower in healthy men than that in subfertile men (6.0 min vs 7.0 min). An increase in the time required to produce semen samples was associated with poorer semen quality. Among those undergoing assisted reproductive technology (ART), the miscarriage rate was positively correlated with the semen collection time. After adjusting for confounders, the highest quartile (Q4) of collection time was negatively associated with semen volume and sperm concentration. A longer time to produce semen samples (Q3 and Q4) was negatively correlated with progressive and total sperm motility. In addition, there was a significant negative linear association between the semen collection time and the sperm morphology. Higher risks of asthenozoospermia (adjusted odds ratio [OR] = 2.06, 95% confidence interval [CI]: 1.31-3.25, P = 0.002) and teratozoospermia (adjusted OR = 1.98, 95% CI: 1.10-3.55, P = 0.02) were observed in Q3 than those in Q1. Our results indicate that a higher risk of abnormal semen parameter values was associated with an increase in time for semen collection, which may be related to male fertility through its association with semen quality.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Semen Analysis
		                        			;
		                        		
		                        			Semen
		                        			;
		                        		
		                        			Sperm Motility
		                        			;
		                        		
		                        			Sperm Count
		                        			;
		                        		
		                        			Asthenozoospermia
		                        			;
		                        		
		                        			Spermatozoa
		                        			
		                        		
		                        	
6.Mutational Spectrum and Prognosis Analysis of Young Patients with Diffuse Large B-Cell Lymphoma Based on Next-Generation Sequencing.
Li-Yang LYU ; Yu-Ling NIE ; Abulaiti RENAGULI ; Xiao-Long QI ; Abuduer MUHEBAIER ; Shun-Sheng ZHAI ; Li AN ; Min MAO ; Yan LI
Journal of Experimental Hematology 2023;31(2):403-410
		                        		
		                        			OBJECTIVE:
		                        			To investigate the mutational spectrum in young patients with diffuse large B-cell lymphoma (DLBCL) based on next generation sequencing (NGS), and to provide a basis for in-depth understanding of the molecular biological characteristics and accurate prognosis of young DLBCL.
		                        		
		                        			METHODS:
		                        			From March 2009 to March 2021, 68 young DLBCL patients with complete initial diagnosis data from the Department of Hematology, The People's Hospital Xinjiang Uygur Autonomous Region were retrospectively analyzed, and their paraffin-embedded tissues were subjected to targeted sequencing analysis by NGS technology (including 475 Target genes), and the differences in gene mutation profiles and signaling pathways between high-risk patients with aaIPI ≥2 and low-intermediate risk patients with aaIPI <2 were compared.
		                        		
		                        			RESULTS:
		                        			A total of 44 high-frequency mutation genes were detected in 68 young DLBCL patients. By comparing the high-frequency mutation genes in aaIPI high-risk group and low-intermediate risk group, it was found that CARD11 mutation in aaIPI high-risk group was significantly higher than that in low-intermediate risk group (P =0.002), while MGA mutation (P =0.037) only appeared in the aaIPI high-risk group, and SPEN mutation (P =0.004) only appeared in the aaIPI low-intermediate risk group. The high-frequency mutation genes and clinical indicators of the aaIPI high-risk group were included in the survival analysis, and the results showed that TP53 (P =0.009, P =0.027), POU2AF1 (P =0.003, P =0.006) and CCND3 (P =0.040, P =0.014) genes mutations were associated with worse PFS and OS, while B2M was associated with better PFS (P =0.014) and OS (P =0.013). Multivariate COX regression analysis showed that the TP53, POU2AF1 and CCND3 were independent risk factors for PFS(P =0.021,P =0.005,P =0.020) and OS(P =0.042,P =0.010,P =0.013).
		                        		
		                        			CONCLUSION
		                        			The aaIPI staging combination with molecular biology markers is more conducive to accurately judging the prognosis of young DLBCL patients. TP53, POU2AF1 and CCND3 mutations predict worse survival in the patients with the aaIPI high-risk group.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Prognosis
		                        			;
		                        		
		                        			Lymphoma, Large B-Cell, Diffuse/genetics*
		                        			;
		                        		
		                        			Biomarkers
		                        			;
		                        		
		                        			Mutation
		                        			;
		                        		
		                        			High-Throughput Nucleotide Sequencing
		                        			
		                        		
		                        	
7.Analysis of Chinese Medical Syndrome Features of Ischemic Stroke Based on Similarity of Symptoms Subgroup.
Xiao-Qing LIU ; Run-Shun ZHANG ; Xue-Zhong ZHOU ; Hong ZHOU ; Yu-Yao HE ; Shu HAN ; Jing ZHANG ; Zi-Xin SHU ; Xue-Bin ZHANG ; Jing-Hui JI ; Quan ZHONG ; Li-Li ZHANG ; Zi-Jun MOU ; Li-Yun HE ; Lun-Zhong ZHANG ; Jie YANG ; Yan-Jie HU ; Zheng-Guang CHEN ; Xiao-Zhen LI ; Yan TAN ; Zhan-Feng YAN ; Ke-Gang CAO ; Wei MENG ; He ZHAO ; Wei ZHANG ; Li-Qun ZHONG
Chinese journal of integrative medicine 2023;29(5):441-447
		                        		
		                        			OBJECTIVE:
		                        			To derive the Chinese medicine (CM) syndrome classification and subgroup syndrome characteristics of ischemic stroke patients.
		                        		
		                        			METHODS:
		                        			By extracting the CM clinical electronic medical records (EMRs) of 7,170 hospitalized patients with ischemic stroke from 2016 to 2018 at Weifang Hospital of Traditional Chinese Medicine, Shandong Province, China, a patient similarity network (PSN) was constructed based on the symptomatic phenotype of the patients. Thereafter the efficient community detection method BGLL was used to identify subgroups of patients. Finally, subgroups with a large number of cases were selected to analyze the specific manifestations of clinical symptoms and CM syndromes in each subgroup.
		                        		
		                        			RESULTS:
		                        			Seven main subgroups of patients with specific symptom characteristics were identified, including M3, M2, M1, M5, M0, M29 and M4. M3 and M0 subgroups had prominent posterior circulatory symptoms, while M3 was associated with autonomic disorders, and M4 manifested as anxiety; M2 and M4 had motor and motor coordination disorders; M1 had sensory disorders; M5 had more obvious lung infections; M29 had a disorder of consciousness. The specificity of CM syndromes of each subgroup was as follows. M3, M2, M1, M0, M29 and M4 all had the same syndrome as wind phlegm pattern; M3 and M0 both showed hyperactivity of Gan (Liver) yang pattern; M2 and M29 had similar syndromes, which corresponded to intertwined phlegm and blood stasis pattern and phlegm-stasis obstructing meridians pattern, respectively. The manifestations of CM syndromes often appeared in a combination of 2 or more syndrome elements. The most common combination of these 7 subgroups was wind-phlegm. The 7 subgroups of CM syndrome elements were specifically manifested as pathogenic wind, pathogenic phlegm, and deficiency pathogens.
		                        		
		                        			CONCLUSIONS
		                        			There were 7 main symptom similarity-based subgroups in ischemic stroke patients, and their specific characteristics were obvious. The main syndromes were wind phlegm pattern and hyperactivity of Gan yang pattern.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Syndrome
		                        			;
		                        		
		                        			Ischemic Stroke
		                        			;
		                        		
		                        			Medicine, Chinese Traditional
		                        			;
		                        		
		                        			Liver
		                        			;
		                        		
		                        			Phenotype
		                        			
		                        		
		                        	
8.Reduced SARS-CoV-2 infection risk is associated with the use of Seven-Flavor Herb Tea: A multi-center observational study in Shanghai, China.
Shun-Xian ZHANG ; Xiao-Xu CHEN ; Yong ZHENG ; Bing-Hua CAI ; Wei SHI ; Ming RU ; Hui LI ; Dan-Dan ZHANG ; Yu TIAN ; Yue-Lai CHEN
Journal of Integrative Medicine 2023;21(4):369-376
		                        		
		                        			OBJECTIVE:
		                        			Omicron, a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant, is responsible for numerous infections in China. This study investigates the association between the use of Seven-Flavor Herb Tea (SFHT) and the risk of SARS-CoV-2 infection to develop precise and differentiated strategies for control of the coronavirus disease 2019 (COVID-19).
		                        		
		                        			METHODS:
		                        			This case-control study was conducted at shelter hospitals and quarantine hotels in China. A total of 5348 laboratory-confirmed COVID-19 patients were enrolled between April 1 and May 31, 2022, while 2190 uninfected individuals served as healthy controls. Structured questionnaires were used to collect data on demographics, underlying diseases, vaccination status, and use of SFHT. Patients were propensity-score-matched using 1:1 nearest-neighbor matching of the logit of the propensity score. Subsequently, a conditional logistic regression model was used for data analysis.
		                        		
		                        			RESULTS:
		                        			Overall, 7538 eligible subjects were recruited, with an average age of [45.54 ± 16.94] years. The age of COVID-19 patients was significantly higher than that of uninfected individuals ([48.25 ± 17.48] years vs [38.92 ± 13.41] years; t = 22.437, P < 0.001). A total of 2190 COVID-19 cases were matched with uninfected individuals at a 1:1 ratio. The use of SFHT (odds ratio = 0.753, 95% confidence interval: 0.692, 0.820) was associated with a lower risk of SARS-CoV-2 infection compared to untreated individuals.
		                        		
		                        			CONCLUSION
		                        			Our findings suggest that taking SFHT reduces the risk of SARS-CoV-2 infection. This is a useful study in the larger picture of COVID-19 management, but data from large-sample multi-center, randomized clinical trial are warranted to confirm the finding. Please cite this article as: Zhang SX, Chen XX, Zheng Y, Cai BH, Shi W, Ru M, Li H, Zhang DD, Tian Y, Chen YL. Reduced SARS-CoV-2 infection risk is associated with the use of Seven-Flavor Herb Tea: A multi-center observational study in Shanghai, China. J Integr Med. 2023; 21(4):369-376.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			COVID-19/epidemiology*
		                        			;
		                        		
		                        			SARS-CoV-2
		                        			;
		                        		
		                        			Case-Control Studies
		                        			;
		                        		
		                        			China/epidemiology*
		                        			;
		                        		
		                        			Tea
		                        			
		                        		
		                        	
9.Predictive factors for sequelae of bronchitis obliterans in refractory Mycoplasma pneumoniae pneumonia.
Jian Hua LIU ; Jin Rong LIU ; Xiao Lei TANG ; Hai Ming YANG ; Hui LIU ; Hui XU ; Hui Min LI ; Shun Ying ZHAO
Chinese Journal of Pediatrics 2023;61(4):317-321
		                        		
		                        			
		                        			Objective: To investigate the predictive factors for bronchitis obliterans in refractory Mycoplasma pneumoniae pneumonia (RMPP). Methods: A restrospective case summary was conducted 230 patients with RMPP admitted to the Department of No.2 Respiratory Medicine of Beijing Children's Hospital, Capital Medical University from January 2013 to June 2017 were recruited. Clinical data, laboratory results, imaging results and follow-up data were collected. Based on bronchoscopy and imaging findings 1 year after discharge, all patients were divided into two groups: one group had sequelae of bronchitis obliterans (sequelae group) and the other group had not bronchitis obliterans (control group), independent sample t-test and nonparametric test were used to compare the differences in clinical features between the two groups. Receiver operating characteristic (ROC) curve to explore the predictive value of Bronchitis Obliterans in RMPP. Results: Among 230 RMPP children, there were 115 males and 115 females, 95 cases had sequelae group, the age of disease onset was (7.1±2.8) years;135 cases had control group, the age of disease onset was (6.8±2.7) years. The duration of fever, C-reative protein (CRP) and lactate dehydrogenase (LDH) levels, the proportion of ≥2/3 lobe consolidation, pleural effusion and the proportion of airway mucus plug and mucosal necrosis were longer or higher in the sequelae group than those in the control group ((17±9) vs. (12±3) d, (193±59) vs. (98±42) mg/L,730 (660, 814) vs. 486 (452, 522) U/L, 89 cases (93.7%) vs. 73 cases (54.1%), 73 cases (76.8%) vs.59 cases (43.7%), 81 cases (85.3%) vs. 20 cases (14.8%), 67 cases (70.5%) vs. 9 cases (6.7%), t=5.76, 13.35, Z=-6.41, χ2=14.64, 25.04, 22.85, 102.78, all P<0.001). Multivariate Logistic regression analysis showed that the duration of fever ≥10 days (OR=1.200, 95%CI 1.014-1.419), CRP levels increased (OR=1.033, 95%CI 1.022-1.044) and LDH levels increased (OR=1.001, 95%CI 1.000-1.003) were the risk factors for sequelae of bronchitis obliterans in RMPP. ROC curve analysis showed that CRP 137 mg/L had a sensitivity of 82.1% and a specificity of 80.1%; LDH 471 U/L had a sensitivity of 62.7% and a specificity of 60.3% for predicting the development of bronchitis obliterans. Conclusions: The long duration of fever (≥10 d), CRP increase (≥137 mg/L) may be used to predict the occurrence of sequelae of bronchitis obliterans in RMPP. It is helpful for early recognition of risk children.
		                        		
		                        		
		                        		
		                        			Child
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Child, Preschool
		                        			;
		                        		
		                        			Mycoplasma pneumoniae
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Pneumonia, Mycoplasma/complications*
		                        			;
		                        		
		                        			Disease Progression
		                        			;
		                        		
		                        			L-Lactate Dehydrogenase
		                        			;
		                        		
		                        			Fever
		                        			
		                        		
		                        	
10.Genetic characteristics and survival analysis of 27 cases of juvenile myelomonocytic leukemia.
Juan Juan LI ; Tao HU ; Jun Hui LI ; Zhao Xia ZHANG ; Shun Qiao FENG ; Xiao Dong SHI ; Lei ZHANG ; Jinh CAO ; Ze Liang SONG ; Meng Ze HU ; Do Xiao ZHONG ; Mei YUE ; Wei FAN ; Rui Hong TANG ; Bing Han ZOU ; Rong LIU
Chinese Journal of Pediatrics 2023;61(1):56-60
		                        		
		                        			
		                        			Objective: To investigate the genetic and genomic profiling of juvenile myelomonocytic leukemia (JMML) and factors affecting its survival rate. Methods: Clinical characteristics, cytogenetics, molecular biology results and survival status of children with 27 JMML cases admitted to the Hematology Department of Children's Hospital, Capital Institute of Pediatrics from December 2012 to December 2021 were analyzed retrospectively, and the outcomes of the children were followed up. Kaplan-Meier method was used for survival analysis. Univariate analysis was used for analyzing factors affecting the overall survival (OS) rates of patients who received hematopoietic stem cell transplantation (HSCT). Log-Rank test was used for comparison of survival curves. Results: Among 27 JMML cases, there were 11 males and 16 females. The age of disease onset was 28 (11,52) months. There are 20 cases of normal karyotype, 4 cases of monosomy 7, 1 case of trisomy 8,1 case of 11q23 rearrangement and 1 case of complex karyotype. A total of 39 somatic mutations were detected.Those involved in RAS signal pathway were the highest (64%(25/39)), among which PTPN11 mutation was the most frequent (44% (11/25)). A total of 17 cases (63%) received HSCT, 8 cases (30%) did not receive HSCT, and 2 cases (7%) lost follow-up. For children receiving transplantation, the follow-up time after transplantation was 47 (11,57) months. The 1-year OS rate of high-risk transplantation group (17 cases) and high-risk non transplantation group (6 cases) was (88±8)% and (50±20)% respectively, with a statistically significant difference (χ2=5.01, P=0.025). The 5-year OS rate of the high-risk transplantation group was (75±11)%. The survival time of those who relapsed or progressed to acute myeloid leukemia after transplantation was significantly shorter than that of those who did not relapse (χ2=6.80, P=0.009). The OS rate of patients with or without PTPN11 mutation was (81±12) % and (67±19)% respectively (χ2=0.85, P=0.356). Conclusions: The main pathogenesis involved in JMML is gene mutation related to RAS signaling pathway, and the most common driver gene of mutation is PTPN11. Allogeneic HSCT can significantly improve the survival rate of high-risk JMML patients. The recurrence or progression after transplantation was related to poor prognosis.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Child
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Child, Preschool
		                        			;
		                        		
		                        			Leukemia, Myelomonocytic, Juvenile/therapy*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Survival Analysis
		                        			;
		                        		
		                        			Mutation
		                        			;
		                        		
		                        			Hematopoietic Stem Cell Transplantation
		                        			
		                        		
		                        	
            
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