Objective To identify the genetic locus for disseminated superficial actinic porokeratosis(DSAP).Methods Genome DNA was extracted from the whole blood of the family members of a pedigree of DSAP.Genotyping on chromosome12q that had been identified was performed by using7microsatellite mark-ers to scan the family members of DSAP and analysed with LINKAGE(5.1Version).Results A maximum2-point lod score of5.15with marker D12S79at a recombination fraction(?)=0.00was found.Conclusion Our study supports that DSAP gene localizes at the long arm of chromosome12,which was first reported in the literature.

Objective To summarize the clinical experience of successful intervention in single chronic coronary actery total ocdusion (CTO) lesions by the transradial.Methods A retrospective analysis was conducted in 103 patients with single CTO lesions who got intervention treatment by the radial artery.Results ( 1 ) Of the 103 cases,57 cases had unstable angina,12 cases had stable angina,and 34 cases chronic myocardial infarction.Lesions' block time was ≤ 6 months in 83 cases,and ＞ 6 months in 20 cases.(2)The path vessels of the 103 patients have no severe tortuosity and anatomical structure variation.Fifty-one cases occurred left anterior descending occlusion,25 cases occurred left circumflex branches occlusion,and 27 cases occurred right coronary artery occlusion.Furthermore,24 cases had chronic complete occlusion,and 79 cases had chronic functional block.The side branches did not block in 91 cases,no lesions(bridge) collateral formation occurred in 87 cases,lesions length was less than 15 mm in 67 cases,and tapered lesions was observed in 81 cases.( 3 ) Final intervention rate via Judkins,XB,EBU guide catheter was 37.86％,30.10％ and 29.13％ respectively.(4)the PILOT successfully through the lesions for the series wire guided was 64.08％.(5) 1.25 mm diameter series with a balloon through the first lesions and successful expanding was observed in 57 cases (55.34％),and 1.5 mm diameter series with a balloon occurred in 38 cases(36.89％ ).Conclusion Intervention treatment by the radial of single CTO lesions is feasible for experienced performers.The successful intervention depends on path vessels unimpeded,target vessels with characteristic pathological features and reasonable choice of instruments.

Objective: To explore the mediating effect of hemoglobin (Hb) and hematocrit (HCT) on the association between alcohol consumption and blood pressure, and provide evidence for the prevention and control of alcohol-attributed hypertension. Methods: 1 091 male (age >50 years old) participants with drinking habit were selected from the Guangzhou biobank cohort study (GBCS). Mediation analysis was used to evaluate the mediating effect of Hb and HCT on the association of alcohol consumption (unit/day) with systolic blood pressure (SBP), diastolic blood pressure(DBP), pulse pressure(PP) and mean arterial pressure (MAP). Results: After adjusting for age, body mass index, education level, personal annual income, smoking, occupation and physical activity, the associations of alcohol consumption with SBP, DBP, PP and MAP were partly mediated by Hb, the proportion of mediating effect was 11.8% (95%CI 4.8%-24.7%), 15.3% (95%CI 6.5%-32.0%), 8.4% (95%CI 2.2%-22.5%) and 13.5% (95%CI 5.9%-27.5%), respectively. The associations of alcohol consumption with SBP, DBP, and MAP were also partly mediated by HCT, the proportion of mediating effect was 6.3% (95%CI 1.0%-16.0%), 8.7% (95%CI 1.4%-21.4%), and 7.5% (95%CI 1.0%-18.6%), respectively. Conclusion There is a significant mediating effect of Hb and HCT on the association between alcohol consumption and blood pressure. Besides efforts on alcohol control, the potential effects of alcohol-induced increase on Hb and HCT, which might also increase the blood pressure, need to be considered to achieve optimal monitoring and prevention of alcohol-related hypertension.

Objective To investigate the compliance of secondary prevention and the relationship with the long-term outcomes in patients undergoing percutaneous coronary intervention(PCI).Methods 589 patients undergoing PCI were followed-up,and factors including major adverse cardiac events(MACE)),smoking status and the usage of antiplatelet agents,angiotensin converting enzyme inhibitor(ACEI)/angiotensin Ⅱ receptor blocker(ARB),statins,beta blocker,calcium channel blocker and nitrates were recorded.Results The average follow-up time was 18.92 months.At discharge,588 patients(99.83%)were prescribed clopidogrel for(7.89±4.96)months;there were 31 patients(5.26%)who completely discontinued antiplatelet therapy during follow-up.At discharge,the prescription rate of aspirin,ACEI/ARB,beta blocker,statins,calcium channel blocker and nitrates was 98.98%,41.94%,63.50%,83.02%,19.69%and 46.52%respectively,whereas at follow-up,these were decreased to 94.4%,35.99%,55.86%,65.89%,17.49%and 35.31%.At follow-up,there were still 105 current smokers(17.83%).Complete cessation of antiplatelet therapy and current smoking were related to the increased risk of non-fatal myocardial infarct(9.68%v.s.1.08%,P＜0.01);smoking(4.76%v.s.0.83%,P＜0.01)andMACE(19.35%v.s.6.45%,P＜0.01);smoking(11.43%v.s.6.20%,P＜0.05).Conclusion Most patients can adhere to secondary prevention during follow-up,however,the compliance with secondary prevention should be improved further.Cessation of antiplatelet therapy and current smoking contribute to poor prognosis.

Objective:To explore the clinical effect of digital endoscopic-assisted one-stage rhinoplasty and septoplasty by using subjective and objective methods.Methods:Thirty-two patients with skeletal crooked nose and nasal septum deviated who underwent endoscopic-assisted rhinoplasty and septoplasty were included in this study from January 2015 to January 2020. This study used objective measurements such as 3D digital imaging technology and CT scans, as well as subjective measurements such as Visual Analogue Scale (VAS), Rhinoplasty Outcomes Evaluation (ROE) scale, Nasal Obstruction Symptom Evaluation (NOSE) and Functional Rhinoplasty Outcome Inventory (FROI-17) to evaluate the crooked nose morphology and nasal respiratory function before and after surgery.Results:Compared with preoperatively, postoperative 3D facial imaging results showed that the deviation distance and deviation angle of the crooked nose were significantly improved (both P<0.05), and the long-term effect of the operation was stable. Subjectively, the patient＇s appearance VAS score and ROE score were significantly higher than those before surgery, while the NOSE score and FROI-17 score of nasal congestion symptoms were lower than those before surgery. Conclusions:Endoscope-assisted one-stage rhinoplasty and septoplasty can achieve the purpose of repairing the nose appearance and improving the nasal respiratory function at the same time. Through a combination of subjective and objective evaluations, our study found that this procedure had the advantages of minimally invasive, stable effect and shorter recover time; meanwhile, this procedure has high patients＇ satisfaction and is worthy of clinical promotion.

Objective To examine the association between weight changes during early and middle adulthood and the risk of type 2 diabetes mellitus in middle aged and elderly population.Methods Based on the Guangzhou Biobank Cohort Study (GBCS),28 736 residents aged ≥50 years were included in Guangzhou.Multivariate logistic regression was used to analyze the association between body weight changes during early or middle adulthood and age when the heaviest weight reaching the threshold on the risk of type 2 diabetes mellitus in middle age or elderly population.Adjustments on age,smoking,alcohol consumption,physical activity,education level,occupation,district of residence and body mass index etc.,were made.Results The mean age was 64.3 (standard deviation=6.7) years in men and 61.0 (standard deviation=7.0) years in women,with the prevalence rates of diabetes as 13.1％ and 13.7％ in men and women,respectively.Compared to those with stable body weight,the risk of diabetes increased with weight gain during early and middle adulthood in both men and women (both P values for trend ＜0.01).Participants who gained more than 20 kg during early and middle adulthood were associated with the highest risk of diabetes in men (OR=2.83,95％ CI:1.99-4.02) and women (OR=3.13,95％CI:2.47-3.96).Compared to those who reached the highest weight at age 20,those who reaching the highest weight at 40 to 49 years were associated with the highest risk of diabetes,with OR being 5.32 (95％CI:1.92-14.8) in men and 3.41 (95％CI:2.49-4.67) in women,respectively.Weight loss in adulthood was associated with self-reported but not newly diagnosed diabetic cases in both middle and older aged men and women.Conclusion Weight gain during early and middle adulthood may increase the risk of diabetes in middle and older aged population.The detrimental effect of obesity on diabetes might become significantly visible in the next decades.

The teaching of radiology in standardized residency training needs a large number of case data to strengthen the subjective understanding and awareness of residents. The database built by residency training bases can meet the needs of teaching to a certain extent, but the conditions of training bases vary across regions, which makes it difficult to achieve homogeneity in the teaching of radiology. This article discusses the application of Eurorad database in the teaching of radiology in standardized residency training. This database is free of charge, reliable, and comprehensive and provides a large number of free reliable cases and images for teaching, covering both common and rare diseases. Moreover, it can also be used to cultivate the English ability and comprehensive quality of residents and help to establish a hierarchical training system for radiology and non-radiology residents, thereby promoting the improvement in the quality of standardized residency training. This article shows the potential value of Eurorad database in the teaching of radiology in standardized residency training, and comparative studies are needed in the future to further prove its effectiveness.

Background: Cathartic colon belongs to the category of 'constipation' in Traditional Chinese Medicine, and its pathogenesis is related to deficiency of kidney temperament and weak promotion ability, which has become a hot spot of global medical attention. Aims: To investigate the effect and possible mechanism of Jiawei Shenqi-wan (JSQW) on intestinal transmission function and pathological changes of interstitial cells of Cajal (ICCs) in rats with cathartic colon. Methods: Forty rats were randomly divided into blank group, model group, prucalopride group and JSQW group. Fecal moisture content, fecal particle number and intestinal transit rate were detected. The pathological changes of ICCs were observed under transmission electron microscope. RT-qPCR was used to detect the mRNA expressions of water channel proteins (AQP3 and AQP9) and SCF/c-kit pathway. Immunohistochemistry was used to measure the expressions of α-smooth muscle actin (α-SMA), inducible nitric oxide synthase (iNOS) and 5-hydroxytryptamine (5-HT)