Objective:To summarize the application value of copy number variant sequencing(CNV-seq)in the detection of fetal chromosome and cytomegalovirus load.Methods:The study analyzed the clinical basic data,relevant laborato...Objective:To summarize the application value of copy number variant sequencing(CNV-seq)in the detection of fetal chromosome and cytomegalovirus load.Methods:The study analyzed the clinical basic data,relevant laboratory tests,treatment process,and outcomes of three patients with positive cytomegalovirus load detected by CNV-seq for fetal chromosomes and cytomegalovirus load,and literature review was done simutaneoubly.Results:In all three cases,the amniotic fluid cytomegalovirus load was less than 105 Copies/ml,and there were no significant neurological abnormalities observed during pregnancy or postpartum follow-up.There is no literature review on the application of CNV-seq technology in the detection of cytomegalovirus infection,only literature reports on genome analysis of CMV-DNA in confirmed patients were available.Conclusion:CNV-seq can be used to detect cytomegalovirus load,which may have a certain degree of predictive value for fetal outcome.CNV-seq can simultaneously detect fetal chromosomes and pathogenic microorganisms,which is of great significance for the prevention and control of birth defects.展开更多
背景:国内外研究已证实新型镁合金的生物安全性,但尚未有关于镁合金颅骨固定系统相关研究的报道。目的:探讨新型生物可降解镁合金颅骨固定系统植入健康新西兰大白兔后的安全性和有效性。方法:将30只新西兰大白兔随机分2组,每组15只,空...背景:国内外研究已证实新型镁合金的生物安全性,但尚未有关于镁合金颅骨固定系统相关研究的报道。目的:探讨新型生物可降解镁合金颅骨固定系统植入健康新西兰大白兔后的安全性和有效性。方法:将30只新西兰大白兔随机分2组,每组15只,空白对照组不进行任何处理,实验组建立新型生物可降解镁合金颅骨固定系统植入模型。术后14,30,90,180 d,检测两组血常规、凝血功能、肝肾功能、血清镁等指标;术后180 d,通过B超、CT及直视下观察实验组固定系统吸收情况及周围产气情况,采集实验组颅骨固定系统周围及空白对照组相同部位肌肉、颅骨、硬脑膜、脑等组织标本,进行组织切片观察。结果与结论:(1)实验组术后不同时间点的白细胞、血小板、血红蛋白、血尿素氮、谷丙转氨酶、血清镁浓度与空白对照组比较无差异,两组各指标均维持在较稳定的状态;(2)颅部B超提示新型生物可降解镁合金固定系统周围无明显气体,可看出固定系统在逐步吸收,术后180 d CT三维重建显示该系统已吸收近50%,人造颅缝愈合顺利;(3)组织学观察显示,新型生物可降解镁合金固定系统未引起局部肌肉、颅骨、硬脑膜、脑组织的炎症与异物反应;(4)结果表明,新型生物可降解镁合金固定系统具有良好的组织相容性,植入新西兰兔体内安全有效。展开更多
基金Hainan Natural Science Foundation(821RC699)Hainan Natural Science Foundation(822RC825)+1 种基金Hainan Provincial Health Industry Research Project(22A200242)Key R&D Plan of Hainan Province(ZDYF2020225)。
文摘Objective:To summarize the application value of copy number variant sequencing(CNV-seq)in the detection of fetal chromosome and cytomegalovirus load.Methods:The study analyzed the clinical basic data,relevant laboratory tests,treatment process,and outcomes of three patients with positive cytomegalovirus load detected by CNV-seq for fetal chromosomes and cytomegalovirus load,and literature review was done simutaneoubly.Results:In all three cases,the amniotic fluid cytomegalovirus load was less than 105 Copies/ml,and there were no significant neurological abnormalities observed during pregnancy or postpartum follow-up.There is no literature review on the application of CNV-seq technology in the detection of cytomegalovirus infection,only literature reports on genome analysis of CMV-DNA in confirmed patients were available.Conclusion:CNV-seq can be used to detect cytomegalovirus load,which may have a certain degree of predictive value for fetal outcome.CNV-seq can simultaneously detect fetal chromosomes and pathogenic microorganisms,which is of great significance for the prevention and control of birth defects.
文摘背景:国内外研究已证实新型镁合金的生物安全性,但尚未有关于镁合金颅骨固定系统相关研究的报道。目的:探讨新型生物可降解镁合金颅骨固定系统植入健康新西兰大白兔后的安全性和有效性。方法:将30只新西兰大白兔随机分2组,每组15只,空白对照组不进行任何处理,实验组建立新型生物可降解镁合金颅骨固定系统植入模型。术后14,30,90,180 d,检测两组血常规、凝血功能、肝肾功能、血清镁等指标;术后180 d,通过B超、CT及直视下观察实验组固定系统吸收情况及周围产气情况,采集实验组颅骨固定系统周围及空白对照组相同部位肌肉、颅骨、硬脑膜、脑等组织标本,进行组织切片观察。结果与结论:(1)实验组术后不同时间点的白细胞、血小板、血红蛋白、血尿素氮、谷丙转氨酶、血清镁浓度与空白对照组比较无差异,两组各指标均维持在较稳定的状态;(2)颅部B超提示新型生物可降解镁合金固定系统周围无明显气体,可看出固定系统在逐步吸收,术后180 d CT三维重建显示该系统已吸收近50%,人造颅缝愈合顺利;(3)组织学观察显示,新型生物可降解镁合金固定系统未引起局部肌肉、颅骨、硬脑膜、脑组织的炎症与异物反应;(4)结果表明,新型生物可降解镁合金固定系统具有良好的组织相容性,植入新西兰兔体内安全有效。
