1.Research progress in the immune escape mechanism of Trichinella spiralis
Yan-Hong QIAN ; Shuai SONG ; Xiao-Hui WEN ; Chun-Ling JIA ; Dian-Hong LYU ; Zi-Guo YUAN ; Sheng-Jun LUO
Chinese Journal of Zoonoses 2024;40(1):70-75
Trichinosis is a global food-borne zoonotic parasitic disease caused by Trichinella spiralis(T.spiralis),which causes serious harm to animal production,and the public health safety of humans and animals.T.spiralis has a complex devel-opment history,and its entire life cycle is completed in the same host.To coexist with the host,it has evolved various immune escape mechanisms for avoiding immune clearance by the host,thus establishing long-term chronic infection.In this study,to aid in understanding the pathogenic mechanism of T.spiralis,the immune escape mechanism of Trichinella is discussed from three aspects:the molecular role of antigens in various stages,the immune regulatory effect on the host,and the formation of cysts to generate immune isolation.
2.Structure-activity Omics on Anti-inflammatory and Analgesic Effect of Paeoniae Radix Alba in Qizhi Weitong Granules
Bing QI ; Xi LUO ; Ying ZHENG ; Ying MENG ; Shuai WANG ; Yongrui BAO ; Tianjiao LI ; Ling HAN ; Xinying SHU ; Xiansheng MENG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(21):169-175
ObjectiveTo elucidate the active compounds for the anti-inflammatory and analgesic effects of Paeoniae Radix Alba from structure-activity omics. MethodOn the basis of the previous in vitro efficacy study by our research group, a mouse model of foot swelling was induced by methyl aldehyde and used to study the anti-inflammatory and analgesic effects of total glycosides of Paeoniae Radix Alba in vivo. The core targets of the active compounds for the anti-inflammatory and analgesic effects of Paeoniae Radix Alba were retrieved from the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP), Online Mendelian Inheritance in Man (OMIM), and Search Tool for Recurring Instances of Neighbouring Genes (STRING). Molecular docking was conducted for the total glucosides of Paeoniae Radix Alba with the core targets, and the key core targets with high binding affinity were screened out according to the comprehensive score of each target and active structure. The structure-activity relationship was analyzed with targets as a bridge through the combination of compound structures and pharmacological effects. ResultThe total glucosides of Paeoniae Radix Alba had good anti-inflammatory and analgesic effects in vivo. The core targets of 23 active components of Paeoniae Radix Alba were epidermal growth factor receptor (EGFR), signal transducer and activator of transcription 3 (STAT3), vascular endothelial growth factor A (VEGFA), cellular tumor antigen p53 (TP53), and proto-oncogene transcription factor (JUN). According to the structure of the parent nucleus, there were 16 pinane monoterpene glycosides, 4 pinene monoterpene glycosides, 2 monoterpene lactone glycosides, and 1 monoterpene ketone. The key core targets screened out by molecular docking were EGFR and STAT3. The structure-activity analysis of the active compound structures and the key core targets showed that the introduction of ketone group and benzene ring group on the parent nucleus affected the binding activity. ConclusionThis study analyzed the material basis for the anti-inflammatory and analgesic effects of total glycosides of Paeoniae Radix Alba from structure-activity omics, providing new ideas and methods for revealing the pharmacodynamic substances in traditional Chinese medicine.
3.Risk prediction models of refeeding syndrome in ICU patients:a review of literature
Shuai YANG ; Hongjing YU ; Jiaxin HE ; Xiaodie ZHANG ; Xiaomei YE ; Wei GUO ; Jingda PAN ; Donglan LING
Modern Hospital 2024;24(2):317-319,324
Refeeding syndrome(RFS)has a high incidence among critically ill patients and significantly impacts the re-covery and prognosis of the patients.In this paper,we reviewed the literature on the risk factors and risk prediction models for RFS,finding the risk factors of RFS included patient-related,treatment-related factors and disease-related factors and the risk prediction models encompassed risk stratification model,risk score models and the Logistic regression models.It was concluded from the review that early assessment was crucial to preventing the occurrence of RFS.However,there was still a lack of reliable RFS risk prediction models with good predictive performance.It was found as well that it was crucial for the prevention of RFS to attach importance to nutritional and serological indicators and other factors.It was expected to be a necessity to conduct prospec-tive and multicenter studies to develop a risk prediction model for predicting RFS for ICU patients.Our review provides a refer-ence for early assessment and intervention for critically ill patients with RFS.
4.Structure-activity Omics of Anti-inflammatory and Analgesic Effect of Corydalis Rhizoma in Qizhi Weitong Granules
Xinpeng QIN ; Ying MENG ; Sicong LIU ; Ying ZHENG ; Yongrui BAO ; Shuai WANG ; Tianjiao LI ; Ling HAN ; Wei ZOU ; Xiansheng MENG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(15):136-145
ObjectiveTo explain the anti-inflammatory and analgesic effects of Corydalis Rhizoma by the means of structure-activity omics. MethodOn the basis of the previous in vitro screening study, we studied the in vivo efficacy of the alkaloids in Corydalis Rhizoma. With the targets as a bridge, the structures of chemical components in Corydalis Rhizoma were connected with the efficacy. The molecular docking of the alkaloids in Corydalis Rhizoma with the targets of inflammation and pain was carried out. According to the docking scores and the differences in the structural nucleus of Corydalis Rhizoma alkaloids, a study of structure-activity omics was carried out to summarize the rules of their connection. ResultThe alkaloids in Corydalis Rhizoma had good anti-inflammatory and analgesic effects in vivo, involving 53 chemical components and 73 targets. There were 3 074 targets associated with inflammation and pain, and 42 targets of direct action were shared by the chemical components and the disease. The protein-protein interaction (PPI) and molecular docking analysis predicted that the main active components of Corydalis Rhizoma were tetrahydropalmatine and palmatine, and the core targets were prostaglandin endoperoxide synthase 2 (PTGS2), glutamate receptor metabotropic 5 (GRM5), estrogen receptor 1 (ESR1), solute carrier family 6 member 4 (SLC6A4), and fusion oncoproteins (FOS). According to the differences of mother nucleus, the 53 alkaloid components of Corydalis Rhizoma were classified into 8 categories, including protoberberine, berberine, and aporphine, which had high binding affinities with PTGS2, GRM5 and other targets. The relationship between the structures of Corydalis Rhizoma alkaloids and docking scores in each group showed the same law. In protoberberine, appropriate substituents with hydroxyl, alkoxy or methyl groups on the A and D rings of the parent ring were conducive to enhancing the binding activities with the two targets. In berberine, the structure containing a methyl group on position 13 had strong binding affinities with the two targets. It is hypothesized that the methyl fragment changes the binding mode between the component structure and amino acid residues, which greatly improves the binding affinity. ConclusionThis study employs the method of structure-activity omics to analyze the material basis for the anti-inflammatory and analgesic effects of alkaloids in Corydalis Rhizoma, and the structure-activity omics provides new ideas for revealing the pharmacodynamic substances of traditional Chinese medicine.
5.Structure-activity Omics on Anti-inflammatory and Analgesic Effect of Aurantii Fructus in Qizhi Weitong Granules
Sicong LIU ; Xinpeng QIN ; Bing QI ; Xi LUO ; Tianjiao LI ; Yongrui BAO ; Shuai WANG ; Ling HAN ; Xiansheng MENG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(15):154-161
ObjectiveTo explain the pharmacodynamic substances of Aurantii Fructus flavonoids that exert anti-inflammatory and analgesic effects using a structure-activity omics approach. MethodOn the basis of the previous in vitro pharmacological screening conducted by the research team, an in vivo pharmacological study of Aurantii Fructus flavonoids was carried out. Core targets of the anti-inflammatory and analgesic active components of flavonoids of Aurantii Fructus were identified using various network databases, including the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP), the Online Mendelian Inheritance in Man (OMIM), and the Search Tool for the Retrieval of Interacting Genes/Proteins (STRING). Computer-aided virtual screening technology was used to dock different types of Aurantii Fructus flavonoids with core targets. The key core targets with high binding activity were selected based on the comprehensive scores of each target and the active structures. Using these targets as bridges, the structures of one or more types of chemical components in Aurantii Fructus were closely linked to pharmacological effects. The structure-activity relationship between the clear pharmacodynamic compounds and their effects was explored through the binding patterns of various structures with pharmacodynamic targets. ResultAurantii Fructus flavonoids demonstrated significant anti-inflammatory and analgesic effects on dextran sulfate sodium (DSS)-induced colitis in mice, which could improve symptoms and significantly reduce the levels of inflammatory factors interleukin-6 (IL-6) and interleukin-1β (IL-1β)(P<0.05). Twelve active components of Aurantii Fructus flavonoids were identified and categorized into nine dihydroflavonoids and three flavonoids based on their structures of the parent nuclei. Through Venn analysis, 167 anti-inflammatory and analgesic targets for Aurantii Fructus were identified. Based on degree value and molecular docking comprehensive scores, prostaglandin-endoperoxide synthase 2(PTGS2) and mitogen-activated protein kinase 3(MAPK3) were selected for further structural analysis. Structural analysis revealed that components containing glycoside structures exhibited higher binding activity with anti-inflammatory and analgesic targets. ConclusionThis study utilized a structure-activity omics approach based on in vivo pharmacodynamic experiments to analyze the material basis of the anti-inflammatory and analgesic effects of Aurantii Fructus flavonoids. The structure-activity omics approach provides new ideas and methods for elucidating the pharmacodynamic substances of Chinese medicine.
6.Short-term efficacy and safety of cardiac contractility modulation in patients with heart failure
Yankai GUO ; Shuai SHANG ; Tianheng SUN ; Yongqiang FAN ; Jiasuoer XIAOKERETI ; TuErhong Kela ZU ; Xu YANG ; Ling ZHANG ; Yaodong LI ; Yanmei LU ; Jianghua ZHANG ; Qiang XING ; Xianhui ZHOU ; Baopeng TANG
Chinese Journal of Cardiology 2024;52(4):391-396
Objective:To investigate the short-term efficacy and safety of cardiac contractility modulation (CCM) in patients with heart failure.Methods:This was a cross-sectional study of patients with heart failure who underwent CCM placement at the First Affiliated Hospital of Xinjiang Medical University from February to June 2022. With a follow-up of 3 months, CCM sensation, impedance, percent output, and work time were monitored, and patients were compared with pre-and 3-month postoperative left ventricular ejection fraction (LVEF) values, and 6-minute walk test distance and New York Heart Association (NYHA) cardiac function classification, and the occurrence of complications was recorded.Results:CCM was successfully implanted in all 9 patients. Seven(7/9) of them were male, aged (56±14) years, 3 patients had ischaemic cardiomyopathy and 6 patients had dilated cardiomyopathy. At 3-month postoperative follow-up, threshold was stable, sense was significantly lower at follow-up than before (right ventricle: (16.3±7.0) mV vs. (8.2±1.1) mV, P<0.05; local sense: (15.7±4.9) mV vs. (6.7±2.5) mV, P<0.05), and impedance was significantly lower at follow-up than before (right ventricle (846±179) Ω vs. (470±65) Ω, P<0.05, local sense: (832±246) Ω vs. (464±63) Ω, P<0.05). The CCM output percentage was (86.9±10.7) %, the output amplitude was (6.7±0.4) V, and the daily operating time was (8.6±1.0) h. LVEF was elevated compared to preoperative ((29.4±5.2) % vs. (38.3±4.3) %, P<0.05), the 6-minute walk test was significantly longer than before ((96.8±66.7)m vs. (289.3±121.7)m, P<0.05). No significant increase in the number of NYHA Class Ⅲ-Ⅳ patients was seen (7/9 vs. 2/9, P>0.05). The patient was not re-hospitalised for worsening heart failure symptoms, had no malignant arrhythmic events and experienced significant relief of symptoms such as chest tightness and shortness of breath. No postoperative complications related to pocket hematoma, pocket infection and rupture, electrode detachment, valve function impairment, pericardial effusion, or cardiac perforation were found. Conclusions:CCM has better short-term safety and efficacy in patients with heart failure.
7.Mechanisms of arsenic induced gastric cancer
Ling TONG ; Jingwen ZHANG ; Shuai LI ; Kaipeng DUAN
Basic & Clinical Medicine 2024;44(11):1598-1602
Arsenic is a heavy metal element and has been classified as group 1 carcinogens.Humans are mainly ex-posed to arsenic through drinking water.Long-term exposure to arsenic causes carcinomatous and non-carcinomatous lesions,including gastric carcinoma.At present,the known mechanisms of inorganic arsenic exposure leading to the occurrence and development of gastric cancer mainly include oxidative stress,epigenetic changes and immune regulation.Oxidative stress may change the structure and function of the intestinal epithelium,leading to damage to the intestinal mucosal barrier and then carcinoma.Epigenetic changes are mainly manifested in DNA methylation,histone post-translational modification and miRNA expression,which lead to the occurrence and development of gastric carcinoma.Impairment of the normal function of immune cells such as lymphocytes,dendritic cells,and macrophages may lead to dysbiosis of the gastrointestinal microbiota and development of gastric carcinoma.
8.Genetic and Phenotypic analysis of a Family with Van der Hoeve Syndrome Caused by COL1A1 Gene Mutation and Literature Review
Zequn NIE ; Chufeng HE ; Hong WU ; Jie LING ; Qinhui FU ; Bo PANG ; Shuai ZHANG ; Yongjia CHEN ; Lingyun MEI
Journal of Audiology and Speech Pathology 2024;32(5):389-393
Objective To conduct a detailed clinical phenotypic analysis and gene mutation detection on an au-tosomal dominant Van der Hoeve syndrome family,and to identify the pathogenic gene mutation sites of the family and the impact of the mutation on gene coding.Methods Clinical data including medical history,physical examina-tion and auxiliary examination were collected and peripheral blood samples were collected from the Van der Hoeve syndrome families.Exome sequencing and Sanger sequencing were performed on 22 family members.The data were analyzed using bioinformatics software.Results The family had a total of 5 generations,with each generation expe-riencing consecutive illnesses.Each generation of men and women could suffer from the disease,which conformed to the characteristics of autosomal dominant inheritance.The 12 patients in this family were all born with blue sclera and short stature.8 patients had a history of fractures and could heal normally.3 patients were considering hearing loss caused by Van der Hoeve syndrome.12 patients had a base deletion(c.1128delT)in exon 17 of the COL1A1 gene,causing a change in the amino acid coding after position 376 and ending the amino acid coding prematurely at position 539.10 asymptomatic individuals in this family didn't had this mutation.Conclusion The patient of this family was identified as Van der Hoeve syndrome caused by c.1128 delT mutation.
9.Discussion on the Application Prospects and Challenges of Generative Artificial Intelligence Represented by ChatGPT in the Field of Hospital Management
Mingwang FANG ; Ling GUO ; Yingde HUANG ; Wei YUAN ; Yunyi GAO ; Yi ZHOU ; Yiyang ZHAO ; Bingxing SHUAI ; Xiangjun CHEN ; Weiyi ZHANG ; Dajiang LI
Journal of Medical Informatics 2024;45(10):18-21
Purpose/Significance To explore the changes,challenges,key application scenarios and future development directions of generative artificial intelligence(AI)represented by ChatGPT in the field of hospital management,and to provide references for the ap-plication of AI natural language processing(NLP)technology in the field of hospital management in China.Method/Process Through literature review and analysis,the changes and challenges brought about by the rapid development of generative AI in the field of hospital management are sorted out,its key application scenarios and future development directions in the field of hospital management are empha-sized and explored.Result/Conclusion AI has broad application prospects in the field of hospital management,and it should focus on exploring its practical application scenarios and strategic directions to provide reference and guidance for promoting the high-quality de-velopment of public hospitals.
10.Porcine SIRT5 promotes replication of foot and mouth disease virus type O in PK-15 cells
Guo-Hui CHEN ; Xi-Juan SHI ; Xin-Tian BIE ; Xing YANG ; Si-Yue ZHAO ; Da-Jun ZHANG ; Deng-Shuai ZHAO ; Wen-Qian YAN ; Ling-Ling CHEN ; Mei-Yu ZHAO ; Lu HE ; Hai-Xue ZHENG ; Xia LIU ; Ke-Shan ZHANG
Chinese Journal of Zoonoses 2024;40(5):421-429
The effect of porcine SIRT5 on replication of foot and mouth disease virus type O(FMDV-O)and the underlying regulatory mechanism were investigated.Western blot and RT-qPCR analyses were employed to monitor expression of endoge-nous SIRT5 in PK-15 cells infected with FMDV-O.Three pairs of SIRT5-specific siRNAs were synthesized.Changes to SIRT5 and FMDV-O protein and transcript levels,in addition to virus copy numbers,were measured by western blot and RT-qPCR analyses.PK-15 cells were transfected with a eukaryotic SIRT5 expression plasmid.Western blot and RT-qPCR analyses were used to explore the impact of SIRT5 overexpression on FMDV-O replication.Meanwhile,RT-qPCR analysis was used to detect the effect of SIRT5 overexpression on the mRNA expression levels of type I interferon-stimulated genes induced by SeV and FMDV-O.The results showed that expression of SIRT5 was up-regulated in PK-15 cells infected with FMDV-O and siRNA interfered with SIRT5 to inhibit FMDV-O replication.SIRT5 overexpression promoted FMDV-O replication.SIRT5 over-expression decreased mRNA expression levels of interferon-stimulated genes induced by SeV and FMDV-O.These results suggest that FMDV-O infection stimulated expression of SIRT5 in PK-15 cells,while SIRT5 promoted FMDV-O rep-lication by inhibiting production of type I interferon-stimula-ted genes.These findings provide a reference to further ex-plore the mechanism underlying the ability of porcine SIRT5 to promote FMDV-O replication.

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