目的:比较腹腔镜与开腹手术治疗T_(3)~T_(4a)期结肠癌围术期疗效及远期生存情况。方法:选取2018年1月1日至2019年12月31日采用腹腔镜与开腹手术治疗的T_(3)~T_(4a)期结肠癌患者,分为腹腔镜组(n=102)与开腹组(n=43),分析两组围手术期资...目的:比较腹腔镜与开腹手术治疗T_(3)~T_(4a)期结肠癌围术期疗效及远期生存情况。方法:选取2018年1月1日至2019年12月31日采用腹腔镜与开腹手术治疗的T_(3)~T_(4a)期结肠癌患者,分为腹腔镜组(n=102)与开腹组(n=43),分析两组围手术期资料、术后并发症、总生存期、无瘤生存期、1年与3年生存率及无瘤生存率、总生存率、总无瘤生存率、肿瘤复发转移情况。结果:两组患者基线资料差异无统计学意义(P>0.05)。腹腔镜组术中出血量少于开腹组[50.00(20.00,50.00)mL vs. 50.00(50.00,100.00)mL,P<0.001],获取淋巴结数量多于开腹组[17.00(14.00,22.00)枚vs. 14.00(11.00,20.00)枚,P=0.018],术后恢复进食时间[3.00(3.00,4.00)d vs. 4.00(3.00,6.00)d,P<0.001]、排气时间[3.00(3.00,3.00)d vs. 4.00(3.00,5.00)d,P<0.001]短于开腹组,术后总体并发症与不完全肠梗阻发生率低于开腹组(32.35%vs. 51.16%,3.92%vs. 16.28%,P<0.05)。两组术后1年、3年生存率及无瘤生存率、总生存率、总无瘤生存率、肿瘤复发转移率差异无统计学意义(P>0.05)。在T_(4a)亚组中,腹腔镜组与开腹组的各项生存指标差异均无统计学意义(P>0.05)。结论:腹腔镜手术治疗T_(3)~T_(4a)期结肠癌是安全、可行的,更利于术后恢复,可取得与开腹手术相当的肿瘤治疗效果。展开更多
Background:Heterotaxy(HTX)is a thoracoabdominal organ anomaly syndrome and commonly accompanied by congenital heart disease(CHD).The aim of this study was to analyze rare copy number variations(CNVs)in a HTX/CHD cohor...Background:Heterotaxy(HTX)is a thoracoabdominal organ anomaly syndrome and commonly accompanied by congenital heart disease(CHD).The aim of this study was to analyze rare copy number variations(CNVs)in a HTX/CHD cohort and to examine the potential mechanisms contributing to HTX/CHD.Methods:Chromosome microarray analysis was used to identify rare CNVs in a cohort of 120 unrelated HTX/CHD patients,and available samples from parents were used to confirm the inheritance pattern.Potential candidate genes in CNVs region were prioritized via the DECIPHER database,and PNPLA4 was identified as the leading candidate gene.To validate,we generated PNPLA4-overexpressing human induced pluripotent stem cell lines as well as pnpla4-overexpressing zebrafish model,followed by a series of transcriptomic,biochemical and cellular analyses.Results:Seventeen rare CNVs were identified in 15 of the 120 HTX/CHD patients(12.5%).Xp22.31 duplication was one of the inherited CNVs identified in this HTX/CHD cohort,and PNPLA4 in the Xp22.31 was a candidate gene associated with HTX/CHD.PNPLA4 is expressed in the lateral plate mesoderm,which is known to be critical for left/right embryonic patterning as well as cardiomyocyte differentiation,and in the neural crest cell lineage.Through a series of in vivo and in vitro analyses at the molecular and cellular levels,we revealed that the biological function of PNPLA4 is importantly involved in the primary cilia formation and function via its regulation of energy metabolism and mitochondria-mediated ATP production.Conclusions:Our findings demonstrated a significant association between CNVs and HTX/CHD.Our data strongly suggested that an increased genetic dose of PNPLA4 due to Xp22.31 duplication is a disease-causing risk factor for HTX/CHD.展开更多
针对现有的柑橘检测算法准确率低、模型参数量大、检测实时性差、不适用移动采摘设备等问题,提出一种基于改进轻量模型YOLO-DoC的柑橘检测方法。引入Bottleneck结构的ShuffleNetV2网络作为YOLOv5骨干网络模型,构造轻量化网络。同时加入...针对现有的柑橘检测算法准确率低、模型参数量大、检测实时性差、不适用移动采摘设备等问题,提出一种基于改进轻量模型YOLO-DoC的柑橘检测方法。引入Bottleneck结构的ShuffleNetV2网络作为YOLOv5骨干网络模型,构造轻量化网络。同时加入无参型SimAM注意力机制提高复杂环境下对目标的识别精度。为了提高检测网络对于目标果实的边界框定位精度,通过引入Alpha-IoU边界框回归损失函数的方法来获取目标的边界框。实验显示,YOLO-DoC模型的P(precision)值和mAP(mean average precision)值分别为98.8%和99.1%,参数量缩减为YOLOv5网络的1/7,模型的大小为2.8 MB。改进后的模型相比于原网络模型具有识别速度快、定位准度高以及占用内存少的优势,在满足精准采摘工作要求的前提下可以提高采摘效率。展开更多
文摘目的:比较腹腔镜与开腹手术治疗T_(3)~T_(4a)期结肠癌围术期疗效及远期生存情况。方法:选取2018年1月1日至2019年12月31日采用腹腔镜与开腹手术治疗的T_(3)~T_(4a)期结肠癌患者,分为腹腔镜组(n=102)与开腹组(n=43),分析两组围手术期资料、术后并发症、总生存期、无瘤生存期、1年与3年生存率及无瘤生存率、总生存率、总无瘤生存率、肿瘤复发转移情况。结果:两组患者基线资料差异无统计学意义(P>0.05)。腹腔镜组术中出血量少于开腹组[50.00(20.00,50.00)mL vs. 50.00(50.00,100.00)mL,P<0.001],获取淋巴结数量多于开腹组[17.00(14.00,22.00)枚vs. 14.00(11.00,20.00)枚,P=0.018],术后恢复进食时间[3.00(3.00,4.00)d vs. 4.00(3.00,6.00)d,P<0.001]、排气时间[3.00(3.00,3.00)d vs. 4.00(3.00,5.00)d,P<0.001]短于开腹组,术后总体并发症与不完全肠梗阻发生率低于开腹组(32.35%vs. 51.16%,3.92%vs. 16.28%,P<0.05)。两组术后1年、3年生存率及无瘤生存率、总生存率、总无瘤生存率、肿瘤复发转移率差异无统计学意义(P>0.05)。在T_(4a)亚组中,腹腔镜组与开腹组的各项生存指标差异均无统计学意义(P>0.05)。结论:腹腔镜手术治疗T_(3)~T_(4a)期结肠癌是安全、可行的,更利于术后恢复,可取得与开腹手术相当的肿瘤治疗效果。
基金supported by the National Key Research and Development Project of China(No.2021YFC2701000)Natural Science Foundation of China(Nos.82270312 and 82370309)+1 种基金Shanghai Basic Research Project of Science and Technology Innovation Action Plan(No.20JC1418300)CAMS Innovation Fund for Medical Sciences(No.2019-I2M-5-002).
文摘Background:Heterotaxy(HTX)is a thoracoabdominal organ anomaly syndrome and commonly accompanied by congenital heart disease(CHD).The aim of this study was to analyze rare copy number variations(CNVs)in a HTX/CHD cohort and to examine the potential mechanisms contributing to HTX/CHD.Methods:Chromosome microarray analysis was used to identify rare CNVs in a cohort of 120 unrelated HTX/CHD patients,and available samples from parents were used to confirm the inheritance pattern.Potential candidate genes in CNVs region were prioritized via the DECIPHER database,and PNPLA4 was identified as the leading candidate gene.To validate,we generated PNPLA4-overexpressing human induced pluripotent stem cell lines as well as pnpla4-overexpressing zebrafish model,followed by a series of transcriptomic,biochemical and cellular analyses.Results:Seventeen rare CNVs were identified in 15 of the 120 HTX/CHD patients(12.5%).Xp22.31 duplication was one of the inherited CNVs identified in this HTX/CHD cohort,and PNPLA4 in the Xp22.31 was a candidate gene associated with HTX/CHD.PNPLA4 is expressed in the lateral plate mesoderm,which is known to be critical for left/right embryonic patterning as well as cardiomyocyte differentiation,and in the neural crest cell lineage.Through a series of in vivo and in vitro analyses at the molecular and cellular levels,we revealed that the biological function of PNPLA4 is importantly involved in the primary cilia formation and function via its regulation of energy metabolism and mitochondria-mediated ATP production.Conclusions:Our findings demonstrated a significant association between CNVs and HTX/CHD.Our data strongly suggested that an increased genetic dose of PNPLA4 due to Xp22.31 duplication is a disease-causing risk factor for HTX/CHD.
文摘针对现有的柑橘检测算法准确率低、模型参数量大、检测实时性差、不适用移动采摘设备等问题,提出一种基于改进轻量模型YOLO-DoC的柑橘检测方法。引入Bottleneck结构的ShuffleNetV2网络作为YOLOv5骨干网络模型,构造轻量化网络。同时加入无参型SimAM注意力机制提高复杂环境下对目标的识别精度。为了提高检测网络对于目标果实的边界框定位精度,通过引入Alpha-IoU边界框回归损失函数的方法来获取目标的边界框。实验显示,YOLO-DoC模型的P(precision)值和mAP(mean average precision)值分别为98.8%和99.1%,参数量缩减为YOLOv5网络的1/7,模型的大小为2.8 MB。改进后的模型相比于原网络模型具有识别速度快、定位准度高以及占用内存少的优势,在满足精准采摘工作要求的前提下可以提高采摘效率。
