ObjectiveTo investigate the inhibitory effect of gingerol， an active component of ginger， on Staphylococcus aureus （S. aureus） infection， and to preliminarily explore its mechanism related to extracellular vesicles （EVs）. MethodsS.aureus infection models were established in human umbilical vein endothelial cell （HUVECs）， Vero E6 cells， and C57BL/6 mice. Experimental groups included control， infection， and gingerol-treated groups. Bacterial load and VE-cadherin protein expression were detected using immunofluorescence and Western blot. EVs were isolated by size exclusion chromatography and characterized by transmission electron microscopy and nanoparticle tracking analysis. miRNA sequencing was performed on EVs. ResultsGingerol treatment significantly reduced the bacterial load in both in vitro and in vivo infection models and upregulated VE-cadherin expression. miRNA sequencing of EVs revealed that S. aureus infection upregulated the expression of hsa-miR-320c， while gingerol treatment reversed this abnormal expression. Bioinformatic analysis further predicted that the target genes of hsa-miR-320c were significantly enriched in cell junction-related pathways. ConclusionGingerol exhibits clear antibacterial and host-protective effects， by regulating hsa-miR-320c in EVs to maintain endothelial barrier integrity.

Aim To investigate the intervention effect of Rehmannia radix water extract on bleomycin(BLM)-induced pulmonary fibrosis in mice combined with metabolomics and to reveal the potential mechanism,in order to provide new ideas for clinical treatment of pul-monary fibrosis.Methods Male C57BL/6N mice were randomly divided into the control group,model group,pirfenidone group(positive control,PFD,270 mg·kg-1),and low dose(DH-L,4.55 g·kg-1)group,medium dose(DH-M,9.1 g·kg-1)group and high dose(DH-H,18.2 g·kg-1)group of Rehman-nia.Except for the control group,BLM(5 mg·kg-1)was instilled into the trachea to establish the model of pulmonary fibrosis in the other groups.The survival rate,lung index and blood oxygen saturation of mice in each group were evaluated.HE and Masson staining were used to observe the pathological changes of lung tissue.WBP was used to detect lung function.Flow cytometry was used to detect the apoptosis of primary lung cells,ROS and immune cells.ELISA was used to detect the levels of fibrosis markers and inflammatory factors(α-SMA,collagen Ⅰ,collagen Ⅲ,TGF-β1,TNF-α,IL-1 β,and IL-6).Biochemical method was employed to detect the contents of GSH-Px,T-SOD and MDA.Liquid chromatograph mass spectrometer(LC-MS)metabolomics was used to analyze the changes of serum metabolic profile.Results Water extract of Re-hmannia significantly increased the survival rate,oxy-gen saturation and lung function of mice with pulmona-ry fibrosis,reduced the lung coefficient,ameliorated pathological damage and collagen deposition in lung tissue,reduced the levels of apoptosis and oxidative stress,and down-regulated the levels of inflammatory factors in lung tissue.It regulated the levels of metabo-lites such as bile acid metabolism,sphingolipid metabo-lism,and unsaturated fatty acid metabolism.Conclu-sions Water extract of Rehmannia inhibits lung injury and collagen deposition in mice with pulmonary fibrosis by inhibiting inflammatory response,which may be a-chieved by regulating the levels of inflammatory factors through the metabolic pathways of bile acid and sphin-golipid.

Objective:To analyze the genotypes and distribution of thalassemia in Xindu District of Chengdu,in order to provide reference for the prevention and treatment of thalassemia in this area.Methods:A total of 3 679 samples screened for thalassemia gene in Xindu District People's Hospital of Chengdu from June 2021 to April 2024 were selected as the study objects.Blood related parameters were detected by blood analyzer,hemoglobin composition was analyzed by capillary electrophoresis,and routine thalassemia gene detection was performed by PCR+flow-through hybridization.For the samples whose hematologic characteristics did not match the conventional results of thalassemia genes,the genotypes were determined by gene sequencing technology and the results were analyzed.Results:Among 3 679 samples,540 carriers were detected,the total detection rate was 14.68％.Among them,329 cases were α-thalassemia,with a total of 8 genotypes.The top 3 genotype in frequency were--SEA/αα(45.29％,149/329),-α3.7/αα(38.91％,128/329),and-α4.2/αα(6.08％,20/329).There were 197 cases of β-thalassemia,with a total of 10 genotypes,and the top 3 genotype in frequency were βCD41-42(-TCTT)/βN(29.95％,59/197),βCD17(A＞T)/βN(27.92％,55/197),and βIVSII-654(C＞T)/βN(24.87％,49/197).There were 14 cases of αβ-thalassemia,with a total of 12 genotypes,and the main were-α3.7/αα,βIVSII-654(C＞T)/βN and-α3.7/αα,βCD41-42(-TCTT)/βN.There was a rare thalassemia genotype(--SEA/HKαα).In addition,three rare abnormal hemoglobin mutations and one unreported abnormal hemoglobin mutation(HBA1:c.300+13C＞G site heterozygous mutation)were also found.Conclusion:The detection rate of thalassemia gene in this area is high and the genotype is complex.In gene diagnosis,we should pay attention to the combination of multi-technology detection to avoid missing rare genotypes.

Objective:To analyze the colonization rate and molecular types of Staphylococcus aureus (SA) on the tracheotomy wounds of neonates at early postoperative stage in neonatal intensive care unit (NICU). Methods:This was a case series study. Patients who were admitted and underwent tracheotomy in NICU of Beijing Children′s Hospital, Capital Medical University from January 1 st 2020 to December 31 st 2023 were enrolled. Swabs on the skin around the incision or on the nasal mucosa were collected and cultured at 24, 72 and 168 h after operation. Coagulase test and Staphytect Plus kits were used for SA identification. The nuc gene amplification and molecular types of SA were assessed by PCR. The patients were divided into SA colonization group and non-colonization group based on the presence or absence of SA colonization, and into infection group and non-infection group based on the presence or absence of infection. Demographic data, hospitalization information, colonization and infection status of SA were collected from the digital medical record system of the hospital. Differences between groups were analyzed using the independent sample t test or Fisher exact test. Results:Totally 19 patients were enrolled, among whom 13 were male. The gestation age was 39.0 (38.1, 40.0) weeks, and the birth weight was 3 150 (2 600, 3 400) g. Tracheotomy was done at 8.2 (4.1, 19.6) days after diagnosis and indication confirmed. Corrected gestational age of patients on the operation day was 43.6 (42.2, 45.4) weeks. The NICU stay time was (34.0±3.1) days. SA colonization was confirmed around the incision of 8 patients. Out of the 18 strains of colonized bacteria, 10 were methicillin-resistant Staphylococcus aureus (MRSA). The most common molecular type of MRSA was ST59-SCCmec Ⅳ-t437 strain (8 strains). A total of 10 patients presented typical clinical manifestations of bacterial infection at the lungs, 3 patients in the blood stream and 2 patients in the central nervous system. Among 10 patients with bacterial infection, 3 patients were MRSA positive by boby fluid culture and affected by the ST59-SCCmec Ⅳ-t437 strain. The infection rate was different between patients with or without SA colonization on the tracheotomy incision (7/8 vs. 3/11, P=0.020). Conclusions:The colonization rate and infection rate are high on the tracheotomy incision in neonates. The major type is MRSA, and the most common molecular strain is ST59-SCCmec Ⅳ-t437 .

Objective:To analyze the genotypes and distribution of thalassemia in Xindu District of Chengdu,in order to provide reference for the prevention and treatment of thalassemia in this area.Methods:A total of 3 679 samples screened for thalassemia gene in Xindu District People's Hospital of Chengdu from June 2021 to April 2024 were selected as the study objects.Blood related parameters were detected by blood analyzer,hemoglobin composition was analyzed by capillary electrophoresis,and routine thalassemia gene detection was performed by PCR+flow-through hybridization.For the samples whose hematologic characteristics did not match the conventional results of thalassemia genes,the genotypes were determined by gene sequencing technology and the results were analyzed.Results:Among 3 679 samples,540 carriers were detected,the total detection rate was 14.68％.Among them,329 cases were α-thalassemia,with a total of 8 genotypes.The top 3 genotype in frequency were--SEA/αα(45.29％,149/329),-α3.7/αα(38.91％,128/329),and-α4.2/αα(6.08％,20/329).There were 197 cases of β-thalassemia,with a total of 10 genotypes,and the top 3 genotype in frequency were βCD41-42(-TCTT)/βN(29.95％,59/197),βCD17(A＞T)/βN(27.92％,55/197),and βIVSII-654(C＞T)/βN(24.87％,49/197).There were 14 cases of αβ-thalassemia,with a total of 12 genotypes,and the main were-α3.7/αα,βIVSII-654(C＞T)/βN and-α3.7/αα,βCD41-42(-TCTT)/βN.There was a rare thalassemia genotype(--SEA/HKαα).In addition,three rare abnormal hemoglobin mutations and one unreported abnormal hemoglobin mutation(HBA1:c.300+13C＞G site heterozygous mutation)were also found.Conclusion:The detection rate of thalassemia gene in this area is high and the genotype is complex.In gene diagnosis,we should pay attention to the combination of multi-technology detection to avoid missing rare genotypes.

Objective:To explore the clinical characteristics, diagnostic difficulties and optimization direction of treatment strategies of ectopic varicose veins rupture and bleeding in the colon of cirrhotic portal hypertension.Methods:A retrospective analysis was conducted on the clinical data of a patient with cirrhotic portal hypertension and ectopic varicose rupture and bleeding of the colon diagnosed clinically in the Department of Gastroenterology of the Xin′an International Hospital Affiliated to Jiaxing University in February 2025. Combined with the review of relevant literature, the diagnosis and treatment experience was summarized.Results:The patient was diagnosed by colonoscopy with rupture and bleeding of varicose veins in the descending colon, and the blood vessels were exposed.After hemostasis with tissue clips under emergency colonoscopy and the bleeding stopped, drug treatment for bleeding prevention was continued. Sequential endoscopic EcV treatment was planned to be scheduled at an alternative time.Conclusions:The incidence of rupture and bleeding of ectopic varicose veins in the colon due to cirrhotic portal hypertension is relatively low. The diagnosis is difficult, the risk of bleeding is high, and the treatment strategies are controversial. It is necessary to further optimize the diagnosis and treatment strategies in order to improve the therapeutic effect of patients.

Aim To investigate the intervention effect of Rehmannia radix water extract on bleomycin(BLM)-induced pulmonary fibrosis in mice combined with metabolomics and to reveal the potential mechanism,in order to provide new ideas for clinical treatment of pul-monary fibrosis.Methods Male C57BL/6N mice were randomly divided into the control group,model group,pirfenidone group(positive control,PFD,270 mg·kg-1),and low dose(DH-L,4.55 g·kg-1)group,medium dose(DH-M,9.1 g·kg-1)group and high dose(DH-H,18.2 g·kg-1)group of Rehman-nia.Except for the control group,BLM(5 mg·kg-1)was instilled into the trachea to establish the model of pulmonary fibrosis in the other groups.The survival rate,lung index and blood oxygen saturation of mice in each group were evaluated.HE and Masson staining were used to observe the pathological changes of lung tissue.WBP was used to detect lung function.Flow cytometry was used to detect the apoptosis of primary lung cells,ROS and immune cells.ELISA was used to detect the levels of fibrosis markers and inflammatory factors(α-SMA,collagen Ⅰ,collagen Ⅲ,TGF-β1,TNF-α,IL-1 β,and IL-6).Biochemical method was employed to detect the contents of GSH-Px,T-SOD and MDA.Liquid chromatograph mass spectrometer(LC-MS)metabolomics was used to analyze the changes of serum metabolic profile.Results Water extract of Re-hmannia significantly increased the survival rate,oxy-gen saturation and lung function of mice with pulmona-ry fibrosis,reduced the lung coefficient,ameliorated pathological damage and collagen deposition in lung tissue,reduced the levels of apoptosis and oxidative stress,and down-regulated the levels of inflammatory factors in lung tissue.It regulated the levels of metabo-lites such as bile acid metabolism,sphingolipid metabo-lism,and unsaturated fatty acid metabolism.Conclu-sions Water extract of Rehmannia inhibits lung injury and collagen deposition in mice with pulmonary fibrosis by inhibiting inflammatory response,which may be a-chieved by regulating the levels of inflammatory factors through the metabolic pathways of bile acid and sphin-golipid.

Objective To elucidate the mechanisms of trauma-induced coagulopathy(TIC),clarify the specific pathogenic factors and pathophysiological processes,and discover the effective diagnostic indicators and therapeutic targets.Methods Transcriptomic data of traumatic hemorrhagic shock patients were obtained from the Gene Expression Omnibus(GEO)to identify differentially expressed genes(DEGs).Coagulation-related genes(CRGs)from the Kyoto Encyclopedia of Genes and Genomes(KEGG)were intersected with DEGs.Machine learning algorithms,including least absolute shrinkage and selection operator(LASSO)and random forest(RF),were applied to identify key genes.The CIBERSORT algorithm was used to analyze the correlation between key genes and immune cell infiltration.Through consensus clustering,subtype analysis was conducted on trauma patients to compare the infiltration of immune cells.A rat model of traumatic hemorrhagic shock was established to validate coagulation function and the expression of key genes.Results The dataset included samples from 17 healthy controls and 478 patients with traumatic hemorrhagic shock.A total of 6 315 DEGs were identified under the screening criterion of corrected P<0.05.Gene set enrichment analysis(GSEA)showed that the up-regulated DEGs were significantly enriched in the glucose metabolism pathway,while the down-regulated DEGs were enriched in the immune reaction-related pathways.Through cross-analysis of DEGs and CRGs,a total of 65 differentially expressed coagulation-related genes(DE-CRGs)were screened out.GO functional enrichment showed that these genes were mainly located in secreting granular membranes and platelet α-granules,and were involved in physiological processes such as blood coagulation,regulation of body fluid levels,and wound healing.KEGG pathway analysis revealed that these genes were significantly enriched in pathways such as platelet activation,complement and coagulation cascade reactions,Rap1 signaling pathway,and human cytomegalovirus infection.Six key DE-CRGs were identified through machine learning.Receiver operating characteristic(ROC)curve analysis indicated that these genes had good diagnostic efficacy.CIBERSORT analysis revealed a significant correlation between key genes and immune cell infiltration.Patients were classified into two subtypes based on the six key genes:subtype A was rich in CD8+T cells and activated NK cells,presented an immune-active state;subtype B was mainly composed of monocytes and resting NK cells,with insufficient activation of immune pathways.Animal experiments on rats showed that hemorrhagic shock can lead to coagulation dysfunction.The results of qRT-PCR further confirmed that the expression trend of key genes was consistent with the results of bioinformatics analysis.Conclusion In this study,through transcriptomics and machine learning methods,six key genes closely related to TIC were systematically screened out,namely GNA13,PIK3R3,ITGAM,MAPK14,PPP1CC and LYN,and their close connections with coagulation function and immune infiltration were revealed.Animal experiments have further verified the value of these genes as potential diagnostic and therapeutic targets.

Objective To elucidate the mechanisms of trauma-induced coagulopathy(TIC),clarify the specific pathogenic factors and pathophysiological processes,and discover the effective diagnostic indicators and therapeutic targets.Methods Transcriptomic data of traumatic hemorrhagic shock patients were obtained from the Gene Expression Omnibus(GEO)to identify differentially expressed genes(DEGs).Coagulation-related genes(CRGs)from the Kyoto Encyclopedia of Genes and Genomes(KEGG)were intersected with DEGs.Machine learning algorithms,including least absolute shrinkage and selection operator(LASSO)and random forest(RF),were applied to identify key genes.The CIBERSORT algorithm was used to analyze the correlation between key genes and immune cell infiltration.Through consensus clustering,subtype analysis was conducted on trauma patients to compare the infiltration of immune cells.A rat model of traumatic hemorrhagic shock was established to validate coagulation function and the expression of key genes.Results The dataset included samples from 17 healthy controls and 478 patients with traumatic hemorrhagic shock.A total of 6 315 DEGs were identified under the screening criterion of corrected P<0.05.Gene set enrichment analysis(GSEA)showed that the up-regulated DEGs were significantly enriched in the glucose metabolism pathway,while the down-regulated DEGs were enriched in the immune reaction-related pathways.Through cross-analysis of DEGs and CRGs,a total of 65 differentially expressed coagulation-related genes(DE-CRGs)were screened out.GO functional enrichment showed that these genes were mainly located in secreting granular membranes and platelet α-granules,and were involved in physiological processes such as blood coagulation,regulation of body fluid levels,and wound healing.KEGG pathway analysis revealed that these genes were significantly enriched in pathways such as platelet activation,complement and coagulation cascade reactions,Rap1 signaling pathway,and human cytomegalovirus infection.Six key DE-CRGs were identified through machine learning.Receiver operating characteristic(ROC)curve analysis indicated that these genes had good diagnostic efficacy.CIBERSORT analysis revealed a significant correlation between key genes and immune cell infiltration.Patients were classified into two subtypes based on the six key genes:subtype A was rich in CD8+T cells and activated NK cells,presented an immune-active state;subtype B was mainly composed of monocytes and resting NK cells,with insufficient activation of immune pathways.Animal experiments on rats showed that hemorrhagic shock can lead to coagulation dysfunction.The results of qRT-PCR further confirmed that the expression trend of key genes was consistent with the results of bioinformatics analysis.Conclusion In this study,through transcriptomics and machine learning methods,six key genes closely related to TIC were systematically screened out,namely GNA13,PIK3R3,ITGAM,MAPK14,PPP1CC and LYN,and their close connections with coagulation function and immune infiltration were revealed.Animal experiments have further verified the value of these genes as potential diagnostic and therapeutic targets.

Objective:To explore the acupoint selection law of acupuncture and moxibustion in the treatment of broca aphasia after stroke.Methods:RCT articles about acupuncture and moxibustion treatment for broca aphasia after stroke were retrieved from CNKI, VIP, Wanfang Data, China Medical Journal Full-text Database, SinoMed, PubMed, Web of Science and Embase database from the establishment of the databases to May 31, 2024. Excel 2021, SPSS Statistics 27.0, SPSS Modeler 18.0 and Cytoscape 3.9.1 software were used to analyze the frequency of acupoint, clustering, association rules and core co-occurrence network.Results:A total of 87 articles were included, involving 100 acupuncture and moxibustion prescriptions and 101 acupoints/acupoint area, involving 6 types, including Lianquan (CV 23) (35 times), Jinjin (EX-HN12) (35 times) and Yuye (EX-HN13) (34 times). The selected acupoints were mainly distributed in the head, face, neck and lower limbs, and the meridians were mainly Governor Vessel and Conception Vessel; the specific acupoints were mainly original acupoints, followed by collaterals acupoints, and scalp acupuncture was used most frequently in special acupuncture (88 times). According to the clustering analysis of high-frequency acupoints/acupoint area, there were five effective groups, such as "Jinjin (EX-HN12)-Yuye (EX-HN13)-Lianquan (CV 23)-Baihui (GV 20)-Yamen (GV 15)". The core co-occurrence network analysis showed that the acupoints used most frequently were Lianquan (CV 23) and Jinjin (EX-HN12), and the highest correlation between the two acupoints was Jinjin (EX-HN12)-Yuye (EX-HN13).Conclusions:Acupuncture and moxibustion for the treatment of broca aphasia after stroke is often based on "awakening the brain as the outline, benefiting the marrow as the foundation, and resuscitation". Under the guidance of the theory of Zang-fu meridians and collaterals, through dredging the meridians and collaterals, tonifying the brain and opening and closing the sound, the recovery of language function can be achieved.