Objective To investigate the relationship between osteoprotegerin ( OPG ) gene polymorphisms and susceptibility to large-artery atherosclerotic stroke ( LAA ). Methods A total of 1 010 patients with LAA registered in Nanjing Stroke Registry Program between August 2013 and May 2017 were retrieved, and 1 121 healthy residents were selected as controls. Two single nucleotide polymorphisms of rs2073617 and rs3134069 of OPG gene were genotyped by SNPscan technique. Multivariate logistic regression analysis was used to analyze the relationship between rs2073617/rs3134069 and susceptibility to LAA. Results Multivariate logistic regression analysis indicated that the rs3134069 C allele (odds ratio [OR] 1.39, 95%confidence interval [CI] 1.13-1.71; P=0.002) and its corresponding CC/CA genotype (OR 1.43, 95% CI 1.14-1.80; P=0.002) were the independent risk factors for LAA. Stratification analysis showed that this association was more pronounced in the subgroups of olderly (≥60 years), those with hypertension, smoking or without diabetes and hyperlipidemia. In addition, haplotype analysis showed that G-C haplotype of rs2073617/rs3134069 was also an independent risk factor for LAA onset (OR 1.36, 95% CI 1.10-1.68; P=0.005). Conclusion OPG gene polymorphisms are associated with the susceptibility to LAA.

Human gait involves a complex mechanism of muscular skeletal coordinated operation,which is specific and can be used as the basis of identity recognitions and clinical disease diagnoses.Human gaits have wide application value in the field of disaster rescue,battlefield ambulance,counter-terrorism,security,and medical and healthcare.The traditional contact-free gait detection technology mainly depends on optical images or ultrasound,which is susceptible to light,low visibility,obstacles,etc.In recent years,with the rapidly development of bio-radar technology,the bio-radar based contact-free human gait signal detection technology has shown more advantages.It can not be affected by light,can penetrate clothing,camouflage or even walls,and can operate in all-weathe,including low visibility weather conditions such as smog,smoke and fog.In this paper,the technical principles and methods of bio-radar based contact-free human gait detection technologies were discussed,the research status was summarized,and the development trendency was prospected.

Objective To explore the present situation and characteristics of depression in patients with non-small cell lung cancer (NSCLC),and to analyze the mediating role of resilience in the relationship between self-perceived burden and depressive symptom,so as to provide evidence for improving depression in patients. Methods A total of 306 subjects from 5 tertiary hospitals in Changsha,Hunan Province were se-lected by simple random sampling method. Before their discharge from hospital,those subjects were investiga-ted by self-made social demographic questionnaire,Self-rating Depression Scale(SDS),Self-perceived Bur-den Scale of Lung Cancer(SPBS-LC) and Connor&Davidson Resilience Scale(CD-RISC). Pearson analysis was used to analyze the correlation among the variables,and Amos 7. 0 was used to establish the structural e-quation model and test the mediating effect. Results ( 1) The total score of depression was ( 59. 10 ± 8. 37). The total scores of resilience and self-perception burden were (52. 77±10. 12) and (49. 64±8. 55) in newly-diagnosed advanced non-small cell lung cancer patients. (2) Pearson analysis showed that the total score of depression was negatively correlated with the total score of resilience,optimism,self-improvement and tenacity (P<0. 05). The total score of depression was positively correlated with the total score of self-percep-tion burden, physical burden, emotional burden, disease symptoms, social and economic dimensions (P<0. 05). (3) Structural equation model analysis showed that resilience played a partial role in mediating be-tween self-perceived burden and depression and mediating effect accounted for 29. 8% of the total effect. Conclusion The depressive symptom of the NSCLC patients is at the mild to moderate level. Reducing their self-perceived burden and promoting the resilience of lung cancer patients could alleviate their depressive symptom.

Objective:To investigate the iodine nutrition status of pregnant women in Tongren City, and to provide a basis for scientific iodine supplementation of key population.Methods:From 2020 to 2022, a cross-sectional survey was conducted, and one township (street) was selected from each of the five districts of east, west, south, north, and central in 10 counties (districts) of Tongren City each year. Twenty pregnant women were selected from each township (street) for the determination of iodine level in household salt samples and one random urine sample. The levels of salt iodine and urinary iodine in pregnant women from different years and regions, as well as the distribution of urinary iodine during different pregnancy periods, were compared and analyzed.Results:A total of 3 000 household edible salt samples were collected from pregnant women, with a median salt iodine level of 27.3 mg/kg. The coverage rate of iodized salt was 99.7% (2 991/3 000), the qualified rate of iodized salt was 96.1% (2 875/2 991), and the consumption rate of qualified iodized salt was 95.8% (2 875/3 000). There was a statistically significant difference in the iodine level of household salt consumed by pregnant women in different years ( H = 6.85, P < 0.001). A total of 3 000 urine samples from pregnant women were tested, and the median urinary iodine was 177.4 μg/L. By years, the median urinary iodine levels in different years were 197.8, 169.2, and 168.3 μg/L, with statistically significant differences ( H = 35.46, P < 0.001). By region, there were statistically significant differences in the median urinary iodine levels of pregnant women in different counties (districts, H = 104.00, P < 0.001); among them, Yuping County had the lowest median urinary iodine level, at 149.8 μg/L. By pregnancy periods, there were no statistically significant difference in the median urinary iodine levels of pregnant women in different pregnancy periods ( H = 177.44, P = 0.290). Conclusions:The overall iodine nutrition level of pregnant women in Tongren City is appropriate, and the iodine nutrition of pregnant women in individual areas is insufficient. We should continue to strengthen the monitoring of iodine nutrition level, pay attention to the iodine nutrition status of pregnant women in key areas, and guide pregnant women to supplement iodine scientifically.

Objective:To analyze the pathological findings of ultrasound-guided transplant kidney puncture after renal transplantation and the pathogenesis of different types of diseases.Methods:A retrospective study was conducted to select 257 patients who underwent ultrasound-guided transplant kidney puncture pathology biopsy due to abnormal tests or uncomfortable symptoms at Beijing Friendship Hospital, Capital Medical University from June 2020 to April 2022, and to analyze the pathological results of puncture and the pathogenesis of different types of diseases and puncture-related complications in the post-transplantation patients after transplant kidney puncture biopsy. Measurement data conforming to normal distribution were expressed as mean ± standard deviation ( ± s), and independent sample t-test was used to compare different types of diseases; measurement data did not conform to normal distribution were expressed as median (interquartile distance) [ M( Q1, Q3)], and the comparison between different types of diseases was conducted by non-parametric test. The count data were compared among different types of diseases using Chi-squre test. Results:Among the 257 patients who underwent transplant renal puncture, 93 cases (36.2%) suffered from antibody-mediated rejection (ABMR), 76 cases (29.6%) suffered from IgA nephropathy, 63 cases (24.5%) suffered from T cell-mediated rejection (TCMR), 21 cases (8.2%) suffered from polyomavirus-associated nephropathy (PVAN), and 4 cases (1.6%) suffered from thrombotic microangiopathy (TMA), 16 cases (6.2%) suffered from diabetic nephropathy, and 12 cases (4.7%) suffered from calcineurin inhibitor (CNI) nephropathy. TCMR, TMA and PVAN occurred significantly in the early post-transplantation period (within about 4 years) ( P<0.001), and ABMR occurred significantly in the late post-transplantation period (after about 8 years) ( P<0.001). In terms of time distribution, creatinine abnormality and proteinuria were the main reasons for puncture. Among those diagnosed with PVAN, the time to transplantation was significantly shorter in those who underwent puncture for creatinine abnormality than in those who underwent puncture for proteinuria ( P=0.011). In terms of puncture-related complications, a total of 8 cases were found to have arteriovenous fistulae at the time of review, 2 cases had perinephric hematomas, and 1 case had both of these two puncture-related complications. Conclusions:Transplant renal complications in renal transplant patients mainly include ABMR, IgA nephropathy, TCMR, PVAN, diabetic nephropathy, CNI nephropathy and TMA. In terms of the pathogenesis of different types of diseases after transplantation, post-transplantation PVAN, TMA, and TCMR mostly occur in the early post-transplantation period, while ABMR occurs at a later time. However, it is worth noting that the clinical symptoms of different types of transplantation kidney-related diseases are similar and not typical.

OBJECTIVE: To carry out genetic analysis for a fetus with confined placental mosaicism (CPM) for trisomy 2 (T2) in conjunct with fetal uniparental disomy (UPD). METHODS: Amniocentesis and chromosomal karyotyping was carried out for a pregnant woman with a high risk for chromosome 2 anomalies indicated by non-invasive prenatal testing (NIPT). Single nucleotide polymorphism array (SNP-array) and trio-whole exome sequencing (Trio-WES) were carried out. Ultrasonography was used to closely monitor the fetal growth. Multifocal sampling of the placenta was performed after delivery for copy number variation sequencing (CNV-seq). RESULTS: The fetus was found to have a normal chromosomal karyotype. SNP-array has revealed multiple regions with loss of heterozygosity (LOH) on chromosome 2. Trio-WES confirmed the presence of maternal UPD for chromosome 2. Ultrasonography has revealed intrauterine growth restriction and oligohydramnios. Intrauterine fetal demise had occurred at 23⁺⁴ weeks of gestation. Pathological examination had failed to find salient visceral abnormality. The placenta was proved to contain complete T2 by CNV-seq. CONCLUSION T2 CPM can cause false positive result for NIPT and may be complicated with fetal UPD, leading to adverse obstetric outcomes such as intrauterine growth restriction, oligohydramnios and intrauterine fetal demise.
Female ; Humans ; Pregnancy ; Amniocentesis ; Chromosomes, Human, Pair 2/genetics* ; DNA Copy Number Variations ; Fetal Death ; Fetal Growth Retardation/genetics* ; Fetus ; Mosaicism ; Oligohydramnios ; Placenta ; Trisomy/genetics* ; Uniparental Disomy/genetics*

Objective:To analyze the iodine nutritional status of children aged 8 - 10 in Tongren City, Guizhou Province, and provide a basis for scientific iodine supplementation for children.Methods:From 2020 to 2022, a systematic sampling method was adopted in 10 districts and counties of Tongren City. Each year, each district and county was divided into 5 districts based on east, west, south, north, and center. One township (street) was selected from each district, and 40 non boarding students aged 8 to 10 were selected from each township (street) to measure the iodine content of household salt and urine samples. The content of salt iodine in children of different yesas as well as the distribution of urine iodine in children of different districts and counties and different genders were analyzed and compared. Additionally, B-ultrasound was used to measure the thyroid volume of some children and the situation of thyroid enlargement was analyzed.Results:From 2020 to 2022, a total of 6 000 salt samples were collected and monitored from children's households, and 5 989 samples of iodized salt were detected, the coverage rate of iodized salt was 99.8%; and 5 750 samples of qualified iodized salt were found, the qualified rate of iodized salt was 96.0%, the consumption rate of qualified iodized salt was 95.8%; and the median salt iodine was 27.3 mg/kg, the difference in the median salt iodine among children between different years was statistically significant ( H = 10.04, P < 0.001). A total of 6 000 urine samples from children were tested, the median urinary iodine was 225.2 μg/L, the median urinary iodine among children in different districts and counties were statistically significantly different ( H = 85.73, P < 0.001); 3 077 male and 2 923 female urine samples were tested, and the median urinary iodine between different genders was statistically significant different ( Z = - 67.10, P < 0.001). The median urinary iodine of male samples were higher than those of female samples(227.8 vs 222.9 μg/L). The thyroid gland of 2 000 children was examined, and the rate of goiter was 1.0% (21/2 000). Conclusions:From 2020 to 2022, the consumption rate of qualified iodized salt, urinary iodine content and goiter rate of children in Tongren City have all met the national standard for eliminating iodine deficiency disorders. The overall iodine nutrition level exceeds the appropriate amount (urinary iodine of 200 - 299 μg/L).

Objective:To explore the effect of improved skin cleaning method combined with Incontinence-Associated Dermatitis Intervention Tool (IADIT) in the treatment of incontinence-associated dermatitis in critically ill patients.Methods:By convenience sampling, we selected the patients in Peking University Third Hospital as subjects. A total of 92 critically ill patients with fecal incontinence from March 2017 to February 2018 were set as the control group while 63 critically ill patients with fecal incontinence from March 2018 to February 2019 were set as the experimental group. Patients in the control group received routine care, and those in the experimental group received IADIT care. The incidence, curative effects and healing time of incontinence-associated dermatitis were compared between the two groups.Results:After the intervention, the incidence of incontinence-associated dermatitis in the experimental group was 30.16% (19/63) , which was lower than 44.57% (41/92) in the control group, and the difference between the two groups was statistically significant ( P<0.05) . The effective rate of incontinence-associated dermatitis in the experimental group was 94.74% (18/19) , which was higher than 65.86% (27/41) in the control group, and the difference between the two groups was statistically significant ( P<0.05) . The healing time of incontinence-associated dermatitis in the experimental group was (6.33±3.14) d, which was lower than (11.55±3.41) d in the control group, and the difference between the two groups was statistically significant ( P<0.01) . Conclusions:Compared with traditional empirical nursing methods, targeted interventions based on IADIT for critically ill patients with fecal incontinence can effectively reduce the incidence of incontinence-associated dermatitis, improve the cure rate of incontinence-associated dermatitis and shorten the healing time.

Chronic obstructive pulmonary disease (COPD) is a global public health issue, and elderly COPD patients are at high risk of fall. Domestic and foreign clinical practice guidelines for fall prevention in the elderly emphasize that the identification of risk factors is the key to prevent fall. This article reviews the risk factors, risk assessment and fall intervention measures of elderly COPD patients, so as to provid a reference for fall prevention in elderly COPD patients.