Positive correlation between miR-570 and prognosis of colon cancer: inhibition of cell proliferation and invasion

Clinical and Experimental Medicine - Colon cancer is one of most common cancers. The progression of various cancers is driven by miRNA-570. The role of miRNA-570 in the progression of colon cancer...     

Correction: Thrombotic and bleeding events,mortality, and anticoagulant use among 546,656 hospitalized patients with COVID‑19 in the United States: a retrospective cohort study

Journal of Thrombosis and Thrombolysis -     

New frontiers in applied veterinary point‐of‐capture diagnostics: Toward early detection and control of zoonotic influenza

Among the chief limitations in achieving early detection and control of animal‐origin influenza of pandemic potential in high‐risk livestock populations is the existing lag time between sample collection and diagnostic result. Advances in molecular diagnostics are permitting deployment of affordable, rapid, highly sensitive, and specific point‐of‐capture assays, providing opportunities for targeted surveillance driving containment strategies with potentially compelling returns on investment. Interrupting disease transmission at source holds promise of disrupting cycles of animal‐origin influenza incursion to endemicity and limiting impact on animal production, food security, and public health. Adoption of new point‐of‐capture diagnostics should be undertaken in the context of promoting robust veterinary services systems and parallel support for operationalizing pre‐authorized plans and communication strategies that will ensure that the full potential of these new platforms is realized.     

利用CNV-seq技术产前诊断Pallister-Killian综合征胎儿一例

应用拷贝数变异测序(copy number variation sequencing,CNV-seq)技术鉴别来源不明的胎儿标记染色体,明确其遗传物质的来源,并探讨此技术在产前诊断中的应用价值。讨论Pallister-Killian综合征(Pallister-Killian syndrome,PKS)的临床特征及遗传学特点,提高对此类罕见染色体疾病的认识。该病例因在妊娠中期超声发现胎儿异常而行羊水穿刺进行CNV-Seq检测,同时分析胎儿和父母的核型。羊水CNV-Seq结果示该样本12号染色体p13.33-p11.1处检测到拷贝数为3.5、片段大小为34.70 Mb的嵌合重复区域;羊水染色体核型结果为47,XY,+i(12)(p10)[58]/46,XX[42],综合上述结果考虑为PKS。通过结合超声结果,综合应用染色体G显带核型分析和CNV-seq技术能准确确认染色体异常片段来源,在产前有效诊断PKS患者。     

浅谈网络版色谱工作站选型及实施

目的：通过布局网络版色谱工作站，实现色谱系统电子实验数据合规化，提升实验室色谱电子数据的安全性，提高实验室色谱系统管理的效率。方法：布局线上网络版色谱工作站。结果：工作站运行良好，升级数据安全，法规响应更完善，节省了实验室管理及维护成本。结论：值得在有色谱需求的实验室推广。     

清热解毒方辅助一次性根治术治疗小儿肛周脓肿临床研究

目的：观察清热解毒方辅助一次性根治术治疗小儿肛周脓肿的疗效及对肉芽组织生长的影响。方法：选取120 例肛周脓肿患儿，按随机数字表法分为对照组和观察组各60 例。对照组行一次性根治术治疗，观察组在对照组基础上术后加用清热解毒方坐浴治疗。比较2 组中医症状评分、渗液评分、视觉模拟评分法（VAS） 评分及肉芽组织生长评分，评价2 组临床疗效及不良反应发生情况。结果：观察组总有效率为91.67%，高于对照组73.33%，差异有统计学意义（P＜0.05）。治疗后，2 组肛门肿痛、夜寐不安、恶寒发热、溲赤便秘、舌红苔黄等中医症状评分较治疗前降低，且观察组各症状评分均低于对照组（P＜0.05）。治疗后，2 组渗液评分、VAS 评分均较治疗前降低，且观察组渗液评分、VAS 评分均低于对照组（P＜0.05）。治疗后，观察组创面愈合时间、腐肉脱落时间、肉芽组织生长评分均少于对照组，创面愈合度高于对照组（P＜0.05）。观察组不良反应发生率为6.67%，低于对照组20.00%，差异有统计学意义（P＜0.05）。结论：清热解毒方辅助一次性根治术治疗小儿肛周脓肿临床疗效显著，可有效改善患儿中医临床症状和肉芽组织生长情况，加快患儿伤口愈合，安全性较好。     

Genetic and epigenetic alterations of the EGFR and mutually independent association with BRCA1, MGMT,and RASSF1A methylations in Vietnamese lung adenocarcinomas

Genetic and epigenetic alterations importantly contribute to the pathogenesis of lung cancer. In the study, we measured the frequency and distribution of molecular abnormalities of EGFR as well as the aberrant promoter methylations of BRCA1, MGMT, MLH1, and RASSF1A in Vietnamese lung adenocarcinomas. We investigated the association between genetic and epigenetic alteration, and between each abnormality with clinicopathologic parameters. Somatic EGFR mutation that was found in 49/139 (35.3%) lung adenocarcinomas showed a significant association with young age, female gender, and non-smokers. EGFR overexpression was identified in 82 tumors (59.0%) and statistical relationships with EGFR or BRCA1 methylation but not EGFR mutation. In addition, EGFR, BRCA1, MGMT, MLH1, and RASSF1A methylations were found in 33 (23.7%), 41 (29.5%), 46 (33.1%), 28 (20.1%), and 41 (29.5%) cases of a total of 139 lung adenocarcinomas, respectively. The RASSF1A methylation was found to be linked to the smoking habit. Methylations in MGMT and RASSF1A were also found to correlate with metastasis status. Furthermore, the distribution of EGFR mutation and that of BRCA1, MGMT or RASSF1A methylation were significantly exclusive in lung adenocarcinomas. The main finding of our study demonstrate that epigenetic abnormalities might play a critical role for the lung tumorigenesis in patients with smoking history and metastasis, and partly affect the predictive value of EGFR mutations through blocking expression due to promoter EGFR hypermethylation. Mutually exclusive distribution of genetic and epigenetic alterations reflects differently biological characteristics in the etiology of lung adenocarcinomas.