肿瘤生物样本库的发展现状及探讨

生物样本包含丰富的遗传、疾病特征和治疗效果等信息，且具有不可再生性，规范保存和使用生物样本已成为肿瘤诊治与研究领域最宝贵的资源之一，本文通过对国内外生物样本库发展现状的概述，提出建设我国肿瘤生物样本库的思考。     

Meeting 24-h Movement Guidelines is Related to Better Academic Achievement: Findings from the YRBS 2019 Cycle

This research is designed to investigate the relationship between the 24-h movement guidelines (24-HMG) and self-reported academic achievement (AA) using nationally representative data derived from the 2019 U.S. National Youth Risk Behaviour Survey. A multiple-stage cluster sampling procedure has been adopted to ensure a representative sample (N = 9127 adolescents; mean age = 15.7 years old; male% = 49.8%). Logistic regression has been adopted to obtain the odds ratio (OR) regarding the associations between adherence to 24-HMG and AA while controlling for ethnicity, body mass index, sex and age. The prevalence of meeting the 24-h movement guidelines in isolation and combination varied greatly (physical activity = 23.3%, screen time = 32.5%, sleep = 22.3%, and 24-HMG = 2.8%), while the percentage of highest-class AA was 42.5%. Compared with the situation when none of 24-HMG is met, the achievement of any of the combined guidelines (except for meeting the physical activity guidelines) was significantly associated with higher odds of achieving first-class AA. Meeting the sleep guideline had 1.42 times increased likelihood to achieve highest-class AA as compared with not meeting the sleep guideline. Meeting screen time guidelines and physical activity guidelines, respectively, were 1.32 and 1.13 times more likely to report first-class AA; but meeting the guidelines of physical activity was not significantly related to AA. Meeting the 24-HMG had the highest odds of achieving first-class AA (OR = 2.01, 95%CI: 1.47– 2.73). In both sexes, adolescents who met 24-HMG self-reported better AA (boys OR = 2.05, 95%CI: 1.34–3.15; girls OR = 2.26, 95%CI: 1.36–3.76). Significant relationships were observed in adolescents from 9–10th grade, but not higher grades. Our research findings suggest that optimal movement behaviours can be seen as an important This work is licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. DOI: 10.32604/IJMHP.2021.017660 ARTICLE Tech Science Press Published Online: 26 October 2021 element to better academic achievement among U.S. adolescents. Future studies can adopt our discoveries to promote adolescents’ academic achievement through implementing optimal 24-h movement behaviour patterns.     

Correction to: The IgG galactosylation ratio is higher in spondyloarthritis patients and associated with the MRI score

Clinical Rheumatology - In the original version of the above article the References 19 and 20 were incorrect which cannot describe the development of the SPARCC score.     

南充市自发性脑出血发病与气温的相关性及滞后效应

目的分析南充市自发性脑出血（sICH）发病与气温的相关性及滞后关系。 方法收集南充市全市范围内二级以上医院2014年1月至2018年12月收治的sICH患者病例资料及同期气温数据，利用Spearman等级相关法确定最佳温度指标，将其组建分布滞后非线性模型，评估其与sICH日发病风险的暴露-剂量反应关系，分层分析各温度节点在性别及年龄组别的滞后-剂量反应关系。 结果共收集sICH患者资料13 952例。Spearman相关性分析揭示sICH日发病人数与日均气温呈非线性负相关（r=-0.324，P<0.05）。分布滞后非线性模型分析结果表明极低温和低温当天sICH的相对危险度为1.68（1.35~2.08）及1.47（1.24~1.72），危害效应最大，其随着滞后天数增加而减弱，极低温滞后1~2 d，低温持续滞后1~10 d。低龄组（18~60岁）在极低温、低温下滞后2 d，高龄组（>60岁）在极低温下滞后10 d，低温下滞后24 d。不同性别组在极低温、低温下滞后效应趋势一致，随滞后天数增加风险下降。 结论低温增加sICH发病风险，早期呈明显急性影响，且具有滞后效应，老年人对低温反应更加滞后。     

CT测量成人寰枢椎后方部分结构数据设计寰枢椎板间融合器

文题释义： 寰枢椎脱位：可分为可复性、难复性和不可复性脱位3种类型，其可导致C_1/2水平脊髓压迫而造成神经功能障碍症状，临床上多需要进行手术治疗，后路钉棒固定融合术是最常用的手术方式。 寰枢椎板间融合器：与寰枢椎侧块关节融合器不同，其直接固定在寰椎后弓与枢椎椎板骨面上，是一种新型融合器，此融合器可配合广泛使用的后路钉棒内固定手术，置入简便，增加植骨与寰椎后弓及枢椎椎板骨面的接触应力，促进骨性融合。 背景：寰枢椎融合器一直以侧块关节融合器为研究热点，但其置入操作风险过大，目前临床上一直缺乏可广泛应用的寰枢椎融合器。 目的：探究成人后路寰枢椎板间融合器的CT影像解剖学可行性并给出初步设计。 方法：对100例成人(男50例，女50例)寰枢椎CT三维成像进行测量，测量指标包括寰椎单侧后弓长度、寰椎后弓厚度、枢椎单侧椎板长度、枢椎椎板厚度、寰椎后弓上缘至枢椎椎板下缘距离，分析寰枢椎后方部分结构的CT测量数据并设计寰枢椎板间融合器。 结果与结论：①男、女性的寰椎单侧后弓长度分别为(23.41±1.48) mm和(22.23±1.25) mm，寰椎后弓厚度分别为(6.00±0.96) mm和(5.28±0.78) mm，枢椎单侧椎板长度分别为(18.54±2.23 )mm和(17.31±0.91) mm，枢椎椎板厚度分别为(5.12±1.31) mm和(4.98±1.26) mm，寰椎后弓上缘至枢椎椎板下缘距离分别为(32.63±2.76) mm和(31.39±4.04) mm；②不同性别的双侧测量数据差异无显著性意义(P > 0.05)；男性的寰椎单侧后弓长度、寰椎后弓厚度、枢椎单侧椎板长度大于女性，差异有显著性意义(P < 0.05)；男性与女性的枢椎椎板厚度、椎后弓上缘至枢椎椎板下缘距离差异无显著性意义(P > 0.05)；③寰枢椎后方部分结构的CT测量结果提示寰枢椎板间融合器是可行的；④寰枢椎板间融合器初步设计成功，并获得国家专利；⑤提示寰枢椎板间融合器具有应用可行性，可用于寰枢椎后路钉棒固定融合过程中，提升寰枢椎间的植骨融合率。 ORCID: 0000-0002-2101-1900(邹小宝)中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程     

Monitoring Hepatocyte Dysfunction and Biliary Complication After Liver Transplantation Using Quantitative Hepatobiliary Scintigraphy

The significance of hepatobiliary scintigraphy (HBS) for hepatic graft function assessment was established mostly on retrospective studies and was not widely recognized due to the lack of quantitative data and variation in accuracy. This prospective study was performed to investigate the effectiveness of quantitative HBS for assessing hepatocyte dysfunction and biliary complication in liver transplant recipients.In 57 recipients who had undergone orthotopic liver transplantation, a total of 67 dynamic ^99mTc-EHIDA scans were performed and quantitative parameters including the hepatocyte extraction fraction (HEF), time to maximum hepatic radioactivity (T_max), and time for peak activity to decrease by 50% (T_1/2) were calculated. The scintigraphic results based on the 3 parameters were compared against the final diagnosis. A ROC curve analysis was carried out to identify the cutoff value of T_max for diagnosis of biliary stricture. Correlation between the parameters of postoperative HBS and conventional biochemical liver function indices were also analyzed.Quantitative ^99mTc-EHIDA HBS had an overall sensitivity of 94.12% (16/17), specificity of 93.33% (42/45), and diagnostic accuracy of 93.55% (58/62) for detecting hepatocyte dysfunction and biliary complication in liver transplant recipients. The recommended cutoff value of T_max for diagnosis of post-transplant biliary stricture was set at 15.75 min with a sensitivity of 100.0% and a specificity of 94.0%. The scintigraphic parameters (HEF, T_max) were statistically significantly associated with the conventional liver function parameters.Quantitative ^99mTc-EHIDA HBS offers a noninvasive imaging modality with high sensitivity and specificity to diagnose hepatocyte dysfunction as well as distinguish between patients with or without biliary stricture following liver transplantation. Furthermore, HEF and T_max values obtained from dynamic HBS show good correlation with conventional liver function parameters.     

表柔比星与吉西他滨膀胱灌注化疗对浅表性膀胱尿路上皮癌术后复发及安全性的影响

目的比较表柔比星与吉西他滨膀胱灌注化疗对浅表性膀胱尿路上皮癌术后复发及安全性的影响。方法遴选本院2014年3月至2017年3月收治并接受TURBT治疗的300例浅表性膀胱尿路上皮癌患者作为研究对象,根据术后灌注化疗药物选择随机分为表柔比星组和吉西他滨组各150例,并对患者进行为期2年的随访,观察两组患者术后化疗复发情况及化疗期间不良反应。结果表柔比星组患者术后6、12、24个月的复发例数分别为3、10、14例,总复发率为18.0%;吉西他滨组患者术后6、12、24个月的复发例数分别为3、8、13例,总复发率为16.0%,两组患者总复发率比较差异无统计学意义(χ^2=0.617,P=0.362)。表柔比星组总不良反应发生率为49.33%(53/150),吉西他滨组总不良反应发生率为26.67%(40/150),两组总不良反应发生率比较,差异有统计学意义(χ^2=5.52,P=0.023)。结论表柔比星与吉西他滨膀胱灌注化疗对预防浅表性膀胱尿路上皮癌术后复发的效果相当,但吉西他滨膀胱灌注产生的不良反应少,患者耐受性较好,值得临床推广。