Objective To investigate the relationship between neutrophil/high-density lipoprotein cholesterol ratio(NHR)and the severity of coronary artery lesions in young adults with acute myocardial infarction.Methods A total of 109 young a-dults(aged 18～45 years)with acute myocardial infarction admitted to the First Affiliated Hospital of Anhui Medical University from June 2019 to June 2023 were selected and divided into Syntax low-risk group(n=85)and Syntax medium-high-risk group(n=24)according to Syntax score.Patients with negative coronary angiography during the same period were negative control group(n=52).General clinical data and related serum markers were collected,and NHR value was calculated.Pearson correla-tion analysis and logistics regression analysis were performed to examine the correlation between NHR and the severity of coro-nary artery lesions.Subgroup analysis and interaction testing were further conducted.The receiver operating curve(ROC)was performed to evaluate the value of NHR in predicting the severity of coronary artery lesions in young adults with acute myocar-dial infarction.Results Gender,smoking rate,alcohol consumption rate,diabetes history,absolute number of neutrophils,tri-glyceride,HDL-C,NHR,VLDL-C,apolipoprotein B(APOB),fasting blood glucose and glycosylated hemoglobin were signifi-cantly different among the three groups(P＜0.05).In pairwise comparison,the absolute number of neutrophil and NHR were significantly different among the three groups.BMI was significant different between non-CHD group and Syntax medium-high-risk group.HDL-C,fasting blood glucose and glycosylated hemoglobin were significant different between Syntax low-risk group and non-CHD group,as well as between Syntax medium-high-risk group and non-CHD group(P＜0.05).Creatinine and APOB were significant different between Syntax low-risk group and non-CHD group.Triglyceride,VLDL-C and LP(a)were significant different between Syntax low-risk group and Syntax medium-high-risk group(P＜0.05).Pearson correlation analysis showed a positively correlation between NHR and Syntax score(r=0.322,P＜0.01).Univariate and multivariate binary logistic regres-sion analysis showed that NHR(OR=1.265,95％CI1.097～1.458,P＜0.05)was an independent risk factor for the severity of coronary artery lesions in young adults with acute myocardial infarction.Subgroup analysis showed that NHR was significantly associated with the severity of coronary artery lesions in patients with BMI≥24 kg/m2,smokers,drinkers and non-drinkers(P＜0.05).No significant difference was observed in interaction analysis.The ROC curve showed that the area under the curve(AUC)predicted by NHR for acute myocardial infarction in young adults was 0.758,with a cut-off value of 7.0319,sensitivity of 83.3％,and specificity of 63.53％.Conclusion NHR has a certain value in predicting the severity of coronary artery lesions in young adults with acute myocardial infarction.

Objective To analyze the spatial distribution of HIV/AIDS epidemics among injecting drug users (IDUs) in China from 2005 to 2011 and to understand its changing trend.Methods Using data on people living with HIV and AIDS through injecting drug between 2005 and 2011 to analyze the demographic characteristics of injecting drug users.Analysis on spatial correlation (provincial level and country level) and median center of hot spots (country level) were conducted by Arcgis software.Results Sex ratio (male/female) and registered place ratio (province/other provinces) reduced as time went by,with the ratios in 2011 as 6.75 and 7.01 respectively.Tape ratio of the disease between HIV and AIDS showed an upward trend (Z=26.880,P＜0.01).Since 2005,the identified numbers of HIV/AIDS and the spatial correlation and hot spots in provincial level had reduced,the numbers of provincial hot spots were two from 2009 to 2011 (Sichuan and Yunnan provinces) at the national level.However,the spatial correlation and hot spots at the provincial level had an increasing trend.Between 2005 and 2011,the Western Median Centers of hot spots was located in Xinjiang province while the Southwestern Median Center of hot spots tended to move towards the north.Conclusion The demographics changes of HIV/AIDS infection among injecting drug users seemed to be regular from 2005 to 2011.Spatial correlation at the provincial level was reducing.However,the spatial correlation and the numbers of hot spots at the country level increased,with hot spots at the country level tended to move from the border areas towards inland.

Background and Objectives: Psoriasis is a chronic inflammatory skin disease, which the mechanisms behind its initiation and development are related to many factors. DMSCs (dermal mesenchymal stem cells) represent an important member of the skin microenvironment and play an important role in the surrounding environment and in neighbouring cells, but they are also affected by the microenvironment. We studied the glucose metabolism of DMSCs in psoriasis patients and a control group to reveal the relationship among glucose metabolism, cell proliferation activity，and VEC (vascular endothelial cell) differentiation in vitro, we demonstrated the biological activity and molecular mechanisms of DMSCs in psoriasis. Methods: and Results: We found that the OCR of DMSCs in psoriatic lesions was higher than that in the control group, and mRNA of GLUT1 and HK2 were up-regulated compared with the control group. The proliferative activity of DMSCs in psoriasis was reduced at an early stage, and mRNA involved in proliferation, JUNB and FOS were expressed at lower levels than those in the control group. The number of blood vessels in psoriatic lesions was significantly higher than that in the control group (p＜0.05), which the mRNA of VEC differentiation, CXCL12, CXCR7, HEYL and RGS5 tended to be increased in psoriatic lesions compared to the control group, in addition to Notch3. Conclusions We speculated that DMSCs affected local psoriatic blood vessels through glucose metabolism, and the differentiation of VECs, which resulted in the pathophysiological process of psoriasis.

Acquired Immunodeficiency Syndrome ; Humans ; Markov Chains