Objective To identify the sequence variation of human leukocyte antigen(HLA)novel allele A11:193 and to simulate the three-dimensional structure of the protein molecule.Methods A sample with abnormal allele results was found by PCR-SBT sequencing and identified by single allele specific sequencing.The 3D structure of the encoded protein was analyzed by Swiss-Model.Results Compared with HLA-A*11:01:01,which has the highest homology,exon 4 nt 662 of this sample has a base substitution of A→G,and its corresponding codon 197 is changed from CAT to CGT,which is changed from histidine(His)to arginine(Arg).Conclusion A new allele of HLA-A was confirmed.The allele sequence was named HLA-A11:193 by the WHO HLA Factor Nomenclature Committee and the three-dimensional structure of the protein molecule encoded by HLA-A11:193 was simulated.There was no significant difference in the three-dimensional structure of the encoded protein between it and HLA-A*11:01:01.

Objective:To explore the influence of human induced pluripotent stem cell (iPSC) derived skin organoid-conditioned culture medium (SO-CM) on the function of human dermal fibroblasts (Fbs) induced by high glucose, with the aim of providing treatment ideas for diabetic wounds.Methods:This study was an experimental research. Human iPSCs were induced into skin organoids. Human iPSC-derived skin organoids and human dermal Fbs were seeded into skin organoid culture medium (SOM) and cultured for three days, respectively. Then the cell culture supernatants were collected as SO-CM and Fb-conditioned culture medium (Fb-CM), respectively. The content of tumor necrosis factor-α (TNF-α), interleukin-10 (IL-10), IL-18, C-C motif chemokine ligand 2 (CCL-2), platelet-derived growth factor (PDGF), vascular endothelial growth factor (VEGF), transforming growth factor-β (TGF-β), epidermal growth factor (EGF), and VEGF-β in SOM, Fb-CM, and SO-CM was detected by enzyme-linked immunosorbent assay. Human Fbs of passage 8 and 9 induced by high glucose were divided into SOM group, Fb-CM group, and SO-CM group according to the random number table method, and were cultured with SOM, Fb-CM, and SO-CM all containing glucose at final molarity of 35 mmol/L, respectively. After 24 hours of culture, the Ki67 positive ratio of cells was calculated after immunofluorescence staining, and the cell absorbance value was detected by using cell counting kit-8, representing cell proliferation activity. The cell scratch test was performed to calculate the cell migration rate at 13 hours after scratching. After 48 hours of culture, the expression of reactive oxygen species in cells was detected by fluorescent probe method, and the rate of β-galactosidase-positive staining of cells was detected by β-galactosidase staining kit, representing cellular senescence. The sample size was three.Results:There was no statistically significant difference in the content of TNF-α, PDGF, and TGF-β among the three culture media ( P>0.05). Compared with that in SOM, the content of IL-10 and EGF in Fb-CM and SO-CM was significantly decreased ( P<0.05), while the content of CCL-2 in FB-CM and VEGF in SO-CM was significantly increased ( P<0.05). After 24 hours of culture, the Ki67 positive ratio ((45.2±6.0)% and (57.4±4.0)%) and absorbance values (124±5 and 158±12) of cells in the Fb-CM group and the SO-CM group were significantly higher than those in the SOM group ((29.6±2.1)% and 100±6, P<0.05), and the Ki67 positive ratio and absorbance value of cells in the SO-CM group were significantly higher than those in the Fb-CM group ( P<0.05). At 13 hours after scratching, the cell migration rates in the Fb-CM group and the SO-CM group were significantly higher than that in the SOM group ( P<0.05). After 48 hours of culture, the level of reactive oxygen species in the SO-CM group was significantly higher than that in the SOM group and the Fb-CM group (with both P values <0.05). After 48 hours of culture, there was no statistically significant difference in the rate of β-galactosidase-positive staining of cells among the three groups ( P>0.05). Conclusions:The SO-CM has high content of VEGF and can significantly promote the proliferation, migration, and expression of reactive oxygen species in human dermal Fbs induced by high glucose, but has no significant effect on cell senescence.

Objective:To investigate the mediating effect of psychological stress between sleep disorder and fatigue in patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI) .Methods:Convenience sampling was used to select 305 ACS patients with PCI from August to September 2024 in China-Japan Union Hospital of Jilin University. General Information Questionnaire, Multidimensional Fatigue Inventory-20 (MFI-20), Symptom Checklist 90 (SCL-90), and Pittsburgh Sleep Quality Index (PSQI) were used to survey the patients at discharge, and one month after discharge.Results:The MFI-20, SCL-90, and PSQI scores at discharge of 305 patients with PCI for ACS were (59.27±18.33), (141.09±49.08), and (10.72±4.95), respectively. The MFI-20, SCL-90, and PSQI scores at one month after discharge were (55.58±19.28), (134.08±44.29), and (9.17±5.20), respectively. Mediating effect analysis showed that at discharge, the direct effect of sleep disorder on fatigue was 0.403, the mediating effect was 0.216, and the total effect was 0.619, with the mediating effect accounting for 34.89% of the total effect. One month after discharge, the direct effect of sleep disorder on fatigue was 0.385, the mediating effect was 0.355, and the total effect was 0.740, with the mediating effect accounting for 47.97% of the total effect.Conclusions:Psychological stress plays a mediating role between sleep disorder and fatigue at different time points in ACS patients undergoing PCI. Clinical attention should be paid to sleep disorders and psychological stress of ACS patients undergoing PCI, so as to improve their fatigue.

Objective:To investigate the mediating effect of psychological stress between sleep disorder and fatigue in patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI) .Methods:Convenience sampling was used to select 305 ACS patients with PCI from August to September 2024 in China-Japan Union Hospital of Jilin University. General Information Questionnaire, Multidimensional Fatigue Inventory-20 (MFI-20), Symptom Checklist 90 (SCL-90), and Pittsburgh Sleep Quality Index (PSQI) were used to survey the patients at discharge, and one month after discharge.Results:The MFI-20, SCL-90, and PSQI scores at discharge of 305 patients with PCI for ACS were (59.27±18.33), (141.09±49.08), and (10.72±4.95), respectively. The MFI-20, SCL-90, and PSQI scores at one month after discharge were (55.58±19.28), (134.08±44.29), and (9.17±5.20), respectively. Mediating effect analysis showed that at discharge, the direct effect of sleep disorder on fatigue was 0.403, the mediating effect was 0.216, and the total effect was 0.619, with the mediating effect accounting for 34.89% of the total effect. One month after discharge, the direct effect of sleep disorder on fatigue was 0.385, the mediating effect was 0.355, and the total effect was 0.740, with the mediating effect accounting for 47.97% of the total effect.Conclusions:Psychological stress plays a mediating role between sleep disorder and fatigue at different time points in ACS patients undergoing PCI. Clinical attention should be paid to sleep disorders and psychological stress of ACS patients undergoing PCI, so as to improve their fatigue.

Objective To identify the sequence variation of human leukocyte antigen(HLA)novel allele A11:193 and to simulate the three-dimensional structure of the protein molecule.Methods A sample with abnormal allele results was found by PCR-SBT sequencing and identified by single allele specific sequencing.The 3D structure of the encoded protein was analyzed by Swiss-Model.Results Compared with HLA-A*11:01:01,which has the highest homology,exon 4 nt 662 of this sample has a base substitution of A→G,and its corresponding codon 197 is changed from CAT to CGT,which is changed from histidine(His)to arginine(Arg).Conclusion A new allele of HLA-A was confirmed.The allele sequence was named HLA-A11:193 by the WHO HLA Factor Nomenclature Committee and the three-dimensional structure of the protein molecule encoded by HLA-A11:193 was simulated.There was no significant difference in the three-dimensional structure of the encoded protein between it and HLA-A*11:01:01.

Objective:To explore the influence of human induced pluripotent stem cell (iPSC) derived skin organoid-conditioned culture medium (SO-CM) on the function of human dermal fibroblasts (Fbs) induced by high glucose, with the aim of providing treatment ideas for diabetic wounds.Methods:This study was an experimental research. Human iPSCs were induced into skin organoids. Human iPSC-derived skin organoids and human dermal Fbs were seeded into skin organoid culture medium (SOM) and cultured for three days, respectively. Then the cell culture supernatants were collected as SO-CM and Fb-conditioned culture medium (Fb-CM), respectively. The content of tumor necrosis factor-α (TNF-α), interleukin-10 (IL-10), IL-18, C-C motif chemokine ligand 2 (CCL-2), platelet-derived growth factor (PDGF), vascular endothelial growth factor (VEGF), transforming growth factor-β (TGF-β), epidermal growth factor (EGF), and VEGF-β in SOM, Fb-CM, and SO-CM was detected by enzyme-linked immunosorbent assay. Human Fbs of passage 8 and 9 induced by high glucose were divided into SOM group, Fb-CM group, and SO-CM group according to the random number table method, and were cultured with SOM, Fb-CM, and SO-CM all containing glucose at final molarity of 35 mmol/L, respectively. After 24 hours of culture, the Ki67 positive ratio of cells was calculated after immunofluorescence staining, and the cell absorbance value was detected by using cell counting kit-8, representing cell proliferation activity. The cell scratch test was performed to calculate the cell migration rate at 13 hours after scratching. After 48 hours of culture, the expression of reactive oxygen species in cells was detected by fluorescent probe method, and the rate of β-galactosidase-positive staining of cells was detected by β-galactosidase staining kit, representing cellular senescence. The sample size was three.Results:There was no statistically significant difference in the content of TNF-α, PDGF, and TGF-β among the three culture media ( P>0.05). Compared with that in SOM, the content of IL-10 and EGF in Fb-CM and SO-CM was significantly decreased ( P<0.05), while the content of CCL-2 in FB-CM and VEGF in SO-CM was significantly increased ( P<0.05). After 24 hours of culture, the Ki67 positive ratio ((45.2±6.0)% and (57.4±4.0)%) and absorbance values (124±5 and 158±12) of cells in the Fb-CM group and the SO-CM group were significantly higher than those in the SOM group ((29.6±2.1)% and 100±6, P<0.05), and the Ki67 positive ratio and absorbance value of cells in the SO-CM group were significantly higher than those in the Fb-CM group ( P<0.05). At 13 hours after scratching, the cell migration rates in the Fb-CM group and the SO-CM group were significantly higher than that in the SOM group ( P<0.05). After 48 hours of culture, the level of reactive oxygen species in the SO-CM group was significantly higher than that in the SOM group and the Fb-CM group (with both P values <0.05). After 48 hours of culture, there was no statistically significant difference in the rate of β-galactosidase-positive staining of cells among the three groups ( P>0.05). Conclusions:The SO-CM has high content of VEGF and can significantly promote the proliferation, migration, and expression of reactive oxygen species in human dermal Fbs induced by high glucose, but has no significant effect on cell senescence.

Objective:To analyze the types and functions of CD34 + cells in full-thickness skin defect wounds of normal mice and diabetic mice by single-cell RNA sequencing. Methods:This study was an experimental study. The CD34 + cell lineage tracing mouse was produced, and the visualization of CD34 + cells under the fluorescent condition was realized. Six male CD34 + cell lineage tracing mice aged 7-8 weeks (designated as diabetic group) were intraperitoneally injected with streptozotocin to establish a diabetic model, and full-thickness skin defect wounds were prepared on their backs when they reached 13 weeks old. Another 6 male CD34 + cell lineage tracing mice aged 13 weeks (designated as control group) were also subjected to full-thickness skin defect wounds on their backs. On post-injury day (PID) 4, wound tissue was collected from 3 mice in control group and 2 mice in diabetic group, and digested to prepare single-cell suspensions. CD34 + cells were screened using fluorescence-activated cell sorting, followed by single-cell RNA sequencing. The Seurat 4.0.2 program in the R programming language was utilized for dimensionality reduction, visualization, and cell clustering analysis of CD34 + cell types, and to screen and annotate the marker genes for each CD34 + cell subpopulation. Kyoto encyclopedia of genes and genomes (KEGG) and gene ontology (GO) enrichment analysis was performed to analyze the differentially expressed genes (DEGs) of CD34 + fibroblasts (Fbs), smooth muscle cells (SMCs), keratinocytes (KCs), and chondrocyte-like cells (CLCs) in the wound tissue of two groups of mice for exploring cellular functions. Results:On PID 4, CD34 + cells in the wound tissue of both groups of mice were consisted of 7 cell types, specifically endothelial cells, Fbs, KCs, macrophages, T cells, SMCs, and CLCs. Among these, Fbs were further classified into 5 subpopulations. Compared with those in control group, the proportions of CD34 + endothelial cells, Fbs subpopulation 1, Fbs subpopulation 4, KCs, and CLCs in the wound tissue of mice were increased in diabetic group, while the proportions of CD34 + Fbs subpopulation 2, Fbs subpopulation 3, and SMCs were decreased. The marker genes for annotating CD34 + CLCs, endothelial cells, Fbs subpopulation 1, Fbs subpopulation 2, Fbs subpopulation 3, Fbs subpopulation 4, Fbs subpopulation 5, KCs, macrophages, SMCs, and T cells were respectively metastasis-associated lung adenocarcinoma transcript 1, fatty acid binding protein 4, Gremlin 1, complement component 4B, H19 imprinted maternally expressed transcript, Dickkopf Wnt signaling pathway inhibitor 2, fibromodulin, keratin 5, CD74 molecule, regulator of G protein signaling 5, and inducible T-cell co-stimulator molecule. KEGG and GO enrichment analysis revealed that, compared with those in control group, DEGs with significant differential expression (SDE) in CD34 + Fbs from the wound tissue of mice in diabetic group on PID 4 were significantly enriched in terms related to inflammatory response, extracellular matrix (ECM) organization, regulation of cell proliferation, and aging (with Pvalues all <0.05), DEGs with SDE in CD34 + SMCs were significantly enriched in terms related to cell migration, apoptotic process, positive regulation of transcription, and phagosome (with P values all <0.05), DEGs with SDE in CD34 + KCs were significantly enriched in terms related to mitochondrial function, transcription, and neurodegenerative diseases (with P values all <0.05), and DEGs with SDE in CD34 + CLCs were significantly enriched in terms related to rhythm regulation, ECM, and viral infection (with P values all <0.05). Conclusions:CD34 + cells display high heterogeneity in the healing process of full-thickness skin defect wounds in both normal mice and diabetic mice. The significantly enriched functions of DEGs with SDE in CD34 + cell subpopulations in the wound tissue of the two mouse groups are closely related to the wound healing process.

AIM:To explore the impact of Delta-like ligand 3(DLL3)on the progression of prostate cancer(Pca)and to elucidate its potential molecular mechanisms.METHODS:Overexpression and interference plasmids of DLL3 gene were constructed,and the effects of DLL3 on the proliferation,migration and invasion of Pca cells were as-sessed.Tumorigenesis assay was employed to determine whether DLL3 influenced the proliferation of PC-3 cells in vivo.The impact of DLL3 on epithelial-mesenchymal transition(EMT)and mitogen-activated protein kinase(MAPK)signaling was investigated through Western blotting.RESULTS:Overexpression of DLL3 significantly enhanced the proliferation,migration,invasion and EMT processes of Pca cells compared with empty vector group and blank control group(P＜0.05).Conversely,knockdown of DLL3 expression yielded opposite effects(P＜0.05).Moreover,up-regulation of DLL3 promoted tumor growth in the nude mouse xenograft model(P＜0.05).Further investigation demonstrated that DLL3 up-regulation led to increases in the levels of MAPK signaling pathway-related proteins.Interestingly,MAPK inhibitor effec-tively reduced the proliferation,migration and invasion of Pca cells caused by DLL3 overexpression(P＜0.05).CON-CLUSION:DLL3 promotes the proliferation,migration and invasion of Pca through the MAPK pathway.

Objective To investigate correlation between QT interval(QT),corrected QT interval(QTc) and metabolic syndrome(MS). Methods Residents who participated in our survey concerning atherosclerosis and related diseases conducted in Shenyang were included. They accomplished questionnaire,physical examination, laboratory tests and electrocardiography test. We divided them into MS group and non-metabolic syndrome (NMS)group according to International Diabetes Federation(IDF)diagnostic criteria for MS. QT interval was measured from the standard 12-lead electrocardiogram. QTc was calculated by using Bazett and Fridericia equations. We analyze correlation of QT ,QTc and MS. Results A total of 739 residents who were 35~64 years old were included. Individuals with MS had longer QTcB and QTcF than NMS group[(415.8 ± 31.9)ms vs.(410.1 ± 32.1)ms, (407.2± 29.1)ms vs.(402.6 ± 28.8)ms,P<0.05]. The more the number of abnormal MS parameters they had, the longer the QT,QTcB and QTcF they had. Regression analysis showed that QT was associated with serum potassium,smoking,blood glucose,and LDL,and QTcB and QTcF were associated with hypertension,waist circumference and blood potassium. Conclusions MS is associated with corrected QTc. Careful ECG monitoring among persons with MS for early detection of a long corrected QT interval may prevent severe and often fatal arrhythmias or sudden death.

This paper was aimed to study traditional Chinese medicine (TCM) syndrome distribution characteristics of HIV infection in Xinjiang region based on the Clinical Medical Research Information Sharing System (CMRISS).CMRISS was used to establish a database (data were from 1151 hospital electronic medical records from May 2011 to March 2012).Oracle and ETL software were used in the data processing.Visualization analysis was used in the data mining.The results showed that syndrome distribution of HIV infection in Xinjiang region was concentrated in four categories with the blockade of dampness due to qi deficiency,deficiency of both qi and yin,yin deficiency of liver and kidney,and the stagnation of liver qi.The syndrome of blockade of dampness due to qi deficiency was relatively concentrated in the range of 20-30 years old,with the majority of female population.The proportion of sexually transmitted infection was more.The syndrome of deficiency of both qi and yin was relatively concentrated in the age range of 30-40 years old,with the majority of male population.The large proportion of infection was due to intravenous drug use.Among different TCM syndromes,Uyghur population occupied relatively large part.Stratified analysis on disease course due to the change of TCM syndrome according to 1 year,3 years and 5 years revealed the disease development rule from excess syndrome,deficiency combined with excess,to deficiency syndrome.It was concluded that the application of CMRISS was able to process a large amount of clinical data.The data mining results can be used to guide clinical practice.It provided a better platform for the scientific research of TCM clinical practice.