Association of glycated hemoglobin at an early stage of pregnancy with the risk of gestational diabetes mellitus among non‐diabetic women in Japan: The Japan Environment and Children’s Study

Aims/IntroductionGestational diabetes mellitus (GDM) is one of the most common complications of pregnancy and is associated with adverse pregnancy outcomes. This study aimed to explore the associations between glycated hemoglobin (HbA1c) levels at the early stage of pregnancy and the GDM risk among non‐diabetic women in a nationwide study in Japan. In addition, the relationship between GDM and adverse pregnancy outcomes was also analyzed.Materials and MethodsThis cohort study (n = 89,799) used data from the Japan Environment and Children’s Study. We stratified the participants into four groups according to HbA1c levels at an early stage of pregnancy. We investigated the association of HbA1c at an early stage of pregnancy with the risk of GDM, and of GDM with the risk of some representative adverse pregnancy outcomes, using the multiple logistic regression model with adjustment for potential confounders.ResultsThe adjusted odds ratio for GDM per 0.1 percentage point increase in HbA1c (%) was 1.20. The adjusted odds ratio for developing GDM was significantly increased in women from the HbA1c 5.0–5.4% category. GDM significantly increased the adjusted odds ratio for adverse pregnancy outcomes, such as hypertensive disorders of pregnancy, polyhydramnios and premature birth.ConclusionsHigh‐normal HbA1c levels at the early stage of pregnancy are significantly associated with GDM risk in women in Japan. GDM was significantly associated with adverse pregnancy outcomes.     

溶栓前使用他汀类药物对缺血性卒中静脉溶栓疗效的系统评价

目的系统评价缺血性卒中急性期静脉溶栓前使用他汀类药物对患者的疗效和安全性。方法计算机检索Pub Med、EMbase、Web of Science和Cochrane Library等数据库,并辅以手工和其他检索,收集关于静脉溶栓前他汀类药物使用对缺血性卒中急性期静脉溶栓患者的疗效和安全性的研究,检索时间截至2016年4月。由两名研究者按照纳入与排除标准独立筛选文献、提取资料和评价纳入研究的方法学质量后,采用Rev Man 5.3软件进行统计学分析。结果共纳入12个队列研究,包括9 237例患者。他汀类药物使用对缺血性卒中静脉溶栓与近期预后无关(3个月改良Rankin量表评分≤2分:OR=1.05,95%CI:0.93~1.18,P=0.47)或呈负相关(3个月改良Rankin量表评分≤1分:OR=0.82,95%CI:0.73~0.92,P0.01);与症状性颅内出血呈正相关(OR=1.46,95%CI:1.17~1.82,P0.01);与病死率无关(OR=1.16,95%CI:0.79~1.71,P=0.44)。结论溶栓前使用他汀类药物可能导致急性缺血性卒中患者溶栓后出血等不良反应,并且可能导致卒中患者溶栓后3个月预后不良。     

Surgical Treatment for Patients With Periodontal Disease Reduces Risk of End‐Stage Renal Disease: A Nationwide Population‐Based Retrospective Cohort Study

Background: The association between periodontal disease treatment and end‐stage renal disease (ESRD) remains unclear. This study aims to determine whether surgical periodontal treatment reduces ESRD risk. Methods: From the insurance claims data of patients with periodontal disease who were free of ESRD from 1997 to 2009, 35,496 patients were identified who underwent surgery for subgingival curettage and/or periodontal flap and are considered the treatment cohort. For comparison, 141,824 patients who did not undergo these treatments were considered the no‐treatment cohort. Follow‐ups were performed until the end of 2009 to estimate the incidence and risk of ESRD in these two cohorts. Cox proportional hazard regression was used to estimate the related hazard ratio (HR) and 95% confidence interval (CI) of ESRD. Results: The incidence of ESRD was lower in the treatment cohort than in the no‐treatment cohort (4.66 versus 7.38 per 10,000 person‐years), with an adjusted HR of 0.59 (95% CI = 0.46 to 0.75). Sex‐ and age‐specific analysis showed that the incidence rate ratio of the treatment cohort to the no‐treatment cohort was higher for women than for men and declined with age. The risks of ESRD were consistently lower in the treatment cohort even when compared by comorbidity. Conclusions: Patients with periodontal disease who undergo procedures for subgingival curettage and/or periodontal flap have a remarkably decreased risk of ESRD.     

心房颤动与缺血性卒中静脉溶栓预后相关性的Meta分析

目的系统评价心房颤动对缺血性卒中静脉溶栓预后的影响。方法计算机检索Pub Med、EMbase、h e Cochrane Library（2014年第4期）、Web of Science、CBM和Wan Fang Data,查找国内外有关心房颤动与缺血性卒中静脉溶栓有关的队列研究,检索时限均为从建库至2014年4月。由2位评价者按照纳入与排除标准独立筛选文献、提取资料和评价纳入研究的方法学质量后,采用Rev Man 5.2软件进行Meta分析。结果最终纳入7个队列研究,共计69 017例患者。Meta分析结果显示：1与无心房颤动的缺血性卒中患者相比,心房颤动会减少缺血性卒中患者溶栓后3个月的良好神经功能结局[OR=0.85,95%CI（0.73,0.98）,P=0.03],但不影响溶栓后死亡风险[OR=1.47,95%CI（0.75,2.86）,P=0.26]。2心房颤动会增加溶栓后颅内出血转化风险[OR=1.36,95%CI（1.26,1.47）,P〈0.001]及症状性出血风险[OR=1.43,95%CI（1.02,1.99）,P=0.04]。结论心房颤动不影响溶栓后3个月死亡风险,但会增加颅内出血风险以及降低溶栓后3个月神经功能预后。对合并心房颤动的缺血性卒中患者,需重视溶栓前评估及溶栓后监测。但受纳入研究质量和数量所限,上述结论尚需开展更多高质量研究加以验证。     

Impact of genetic variations in the WRN gene on age related pathologies and mortality

Mutations in the WRN gene lead to the Werner syndrome (WS), which resembles premature aging. Here, we hypothesize that genetic variations in the WRN gene may also influence aging-trajectories in the population at large. To test this hypothesis, we assessed the impact of the i1-C/T, L1074F and C1367R polymorphisms in the WRN gene on the occurrence of cardiovascular pathologies, on cognitive performance and on the risks of all-cause, cardiovascular and cancer mortalities in the population-based Leiden 85-plus Study. This prospective follow-up study includes 1,245 participants aged 85 years and older, with a total follow-up of 5,164 person-years. At baseline the risks of myocardial infarction, myocardial ischemia, intermittent claudication, arterial surgery and stroke dependent on the i1-C/T, L1074F and C1367R polymorphisms, did not vary between the different genotypes. Also no differences in cognitive functioning were observed, except for attention, where carriers of the 1367R allele performed worse compared to the 1367C homozygotes (94.2 (4.35) versus 84.8 (1.84), p=0.04). Mortality risks, calculated separately for all SNPs, were similar between the different genotype carriers of the i1-C/T, L1074F and C1367R polymorphisms, showing no evidence of altered survival. In conclusion, the i1-C/T, L1074F and C1367R polymorphisms in the WRN gene do not influence the aging-trajectories and survival in the population at large.     

妊娠早期胎儿颈部透明层厚度与胎儿预后的前瞻性队列研究

目的探讨妊娠早期胎儿颈部透明层(NT)厚度与胎儿预后的关系。方法收集2015年12月至2018年12月于南京大学医学院附属鼓楼医院行妊娠早期胎儿NT厚度测量的单胎孕妇,共4958例建立前瞻性研究队列,进行妊娠早期胎儿结构超声筛查、妊娠早期血清学筛查、妊娠中期超声筛查及对新生儿出生后28 d的体格检查。根据妊娠早期超声筛查的结果,分为胎儿NT增厚(≥3.0 mm)者167例与NT厚度正常者4791例;将胎儿NT增厚的孕妇,分为胎儿单纯NT增厚者86例与NT增厚合并结构异常者81例。分析不同NT厚度胎儿的预后,并重点对单纯NT增厚与NT增厚合并结构异常胎儿的妊娠结局进行分析。妊娠早期超声筛查发现胎儿结构异常或血清学筛查结果为高风险的孕妇,经绒毛穿刺取样术行染色体微阵列分析(CMA)检测以明确产前诊断。结果(1)胎儿NT厚度正常孕妇的妊娠结局:共4791例孕妇,包括胎儿NT厚度正常且无结构异常者4726例,其中妊娠中期及产后新诊断结构异常83例,4688例活产;胎儿NT厚度正常但结构异常的孕妇65例,其中61例孕妇终止妊娠,4例活产。(2)胎儿单纯NT增厚孕妇的妊娠结局:86例孕妇中,66例(76.7%,66/86)行CMA检测,3例胎儿诊断为21三体综合征;除7例孕妇选择终止妊娠外,余79例行妊娠中期超声检查、新生儿出生后28 d体格检查、新生儿电话随访至6~21个月均未发现发育异常。(3)胎儿NT增厚合并结构异常孕妇的妊娠结局:81例孕妇中,73例(90.1%,73/81)行CMA检测,其中32例的胎儿为染色体非整倍体异常。70例选择终止妊娠,2例妊娠中期自然流产,9例活产。(4)NT增厚是否合并结构异常胎儿的产前诊断结果及预后比较:单纯NT增厚的胎儿染色体非整倍体的发生率为3.5%(3/86),合并结构异常者为39.5%(32/81),两者比较,差异有统计学意义(χ2=32.7,P<0.01);胎儿单纯NT增厚孕妇的健康新生儿存活率为91.9%(79/86),合并结构异常者为9.9%(8/81),两者比较,差异有统计学意义(χ2=112.3,P<0.01)。结论妊娠早期,超声筛查胎儿NT及结构,能提高出生缺陷的产前筛查率。单纯NT增厚胎儿的染色体非整倍体的发生率较低,新生儿健康存活率较高。     

Day care in relation to respiratory-tract and gastrointestinal infections in a German birth cohort study

AIM: To describe day care attendance in Germany today (in former East and former West Germany). To investigate longitudinally whether children attending day care centres have an increased risk of acquiring common cold, bronchitis, pneumonia, otitis media or diarrhea. METHODS: Questionnaire information was collected when the children in the cohort were 6, 12, 18, 24 months, and 4 and 6 years old. Day care within the first and first 2 years of life was investigated longitudinally with GEE (generalised estimating equations) methods in relation to common cold, bronchitis, pneumonia, otitis media and diarrhea within the first 6 years of life. RESULTS: Day care centre attendance is more common in former East than in former West Germany; this difference is evident even 10-12 years after German reunification. Children attending a day care centre were more likely to have common cold, bronchitis, pneumonia, otitis media and diarrhea within the first 2-3 years of life. With the exception of common cold, from year 4 onwards these associations were not statistically significant anymore and even reversed for some of the infections. CONCLUSIONS: Children attending day care centres were at an increased risk of respiratory and gastrointestinal infections within the first years of life. However, around school age these differences disappeared or even partly reversed.