目的探讨老年肺癌患者行单孔胸腔镜下肺叶或肺段切除术后并发症发生的危险因素。方法纳入2020年1月至2021年12月首都医科大学宣武医院胸外科行单孔胸腔镜肺叶或肺段切除手术的≥60岁的387例老年肺癌患者作为研究对象,中位年龄67(60~87)...目的探讨老年肺癌患者行单孔胸腔镜下肺叶或肺段切除术后并发症发生的危险因素。方法纳入2020年1月至2021年12月首都医科大学宣武医院胸外科行单孔胸腔镜肺叶或肺段切除手术的≥60岁的387例老年肺癌患者作为研究对象,中位年龄67(60~87)岁,其中男性171例(44.2%),女性216例(55.8%)。对老年肺癌患者的术后并发症进行分析,评估老年肺癌患者行单孔胸腔镜肺段或肺叶切除术后并发症发生的危险因素。结果387例患者中共有66例(17.1%)术后出现并发症,其中1例(0.3%)患者死亡。单因素及多因素分析显示:男性(P=0.020)、第1秒用力呼气容积(forced expiratory volume in the first second,FEV1)<1.5 L(P=0.017)、一氧化碳弥散量占预计值百分比(diffusion capacity of the lungs for carbon monoxide as a percentage of the predicted value,DLCO%pred)<80%(P=0.016)、伴有肺部合并症病史(P<0.001)、脑卒中病史(P<0.001)、手术时长≥3 h(P=0.018)为术后出现并发症的独立预测因素。而伴有肺部合并症病史(P<0.001)及手术时长≥3 h(P=0.002)是术后出现肺部并发症的独立危险因素(P<0.05)。结论老年肺癌患者可能因肺部合并症、低肺功能、手术时间等出现术后并发症,因此术前应充分评估老年肺癌患者的生理情况。通过加强围术期管理降低术后并发症的发生率,降低术后并发症对老年肺癌患者行单孔胸腔镜手术治疗效果的影响。展开更多
Chinese Assam tea(Camellia sinensis var.assamica)is an important tea crop with a long history of cultivation in Yunnan,China.Despite its potential value as a genetic resource,its genetic diversity and domestication/br...Chinese Assam tea(Camellia sinensis var.assamica)is an important tea crop with a long history of cultivation in Yunnan,China.Despite its potential value as a genetic resource,its genetic diversity and domestication/breeding history remain unclear.To address this issue,we genotyped 469 ancient tea plant trees representing 26 C.sinensis var.assamica populations,plus two of its wild relatives(six and three populations of C.taliensis and C.crassicolumna,respectively)using 16 nuclear microsatellite loci.Results showed that Chinese Assam tea has a relatively high,but comparatively lower gene diversity(H_(S)=0.638)than the wild relative C.crassicolumna(H_S=0.658).Clustering in STRUCTURE indicated that Chinese Assam tea and its two wild relatives formed distinct genetic groups,with considerable interspecific introgression.The Chinese Assam tea accessions clustered into three gene pools,corresponding well with their geographic distribution.However,New Hybrids analysis indicated that 68.48%of ancient Chinese Assam tea plants from Xishuangbanna were genetic intermediates between the Puer and Lincang gene pools.In addition,10%of the ancient Chinese Assam tea individuals were found to be hybrids between Chinese Assam tea and C.taliensis.Our results suggest that Chinese Assam tea was domesticated separately in three gene pools(Puer,Lincang and Xishuangbanna)in the Mekong River valley and that the hybrids were subsequently selected during the domestication process.Although the domestication history of Chinese Assam tea in southwestern Yunnan remains complex,our results will help to identify valuable genetic resources that may be useful in future tea breeding programs.展开更多
Hydrogels inevitably undergo dehydration,structural collapse,and shrinkage deformation due to the uninterrupted evaporation in the atmosphere,thereby losing their flexibility,slipperiness,and manufacturing precision.H...Hydrogels inevitably undergo dehydration,structural collapse,and shrinkage deformation due to the uninterrupted evaporation in the atmosphere,thereby losing their flexibility,slipperiness,and manufacturing precision.Here,we propose a novel bioinspired strategy to construct a spontaneously formed‘skin’on the slippery hydrogels by incorporating biological stress metabolites trehalose into the hydrogel network,which can generate robust hydrogen bonding interactions to restrain water evaporation.The contents of trehalose in hydrogel matrix can also regulate the desiccation-tolerance,mechanical properties,and lubricating performance of slippery hydrogels in a wide range.Combining vat photopolymerization three-dimensional printing and trehalose-modified slippery hydrogels enables to achieve the structural hydrogels with high resolution,shape fidelity,and sophisticated architectures,instead of structural collapse and shrinkage deformation caused by dehydration.And thus,this proposed functional hydrogel adapts to manufacture large-scale hydrogels with sophisticated architectures in a long-term process.As a proof-of-concept demonstration,a high-precision and sophisticated slippery hydrogel vascular phantom was easily fabricated to imitate guidewire intervention.Additionally,the proposed protocol is universally applicable to diverse types of hydrogel systems.This strategy opens up a versatile methodology to fabricate dry-resistant slippery hydrogel for functional structures and devices,expanding their high-precision processing and broad applications in the atmosphere.展开更多
文摘目的探讨老年肺癌患者行单孔胸腔镜下肺叶或肺段切除术后并发症发生的危险因素。方法纳入2020年1月至2021年12月首都医科大学宣武医院胸外科行单孔胸腔镜肺叶或肺段切除手术的≥60岁的387例老年肺癌患者作为研究对象,中位年龄67(60~87)岁,其中男性171例(44.2%),女性216例(55.8%)。对老年肺癌患者的术后并发症进行分析,评估老年肺癌患者行单孔胸腔镜肺段或肺叶切除术后并发症发生的危险因素。结果387例患者中共有66例(17.1%)术后出现并发症,其中1例(0.3%)患者死亡。单因素及多因素分析显示:男性(P=0.020)、第1秒用力呼气容积(forced expiratory volume in the first second,FEV1)<1.5 L(P=0.017)、一氧化碳弥散量占预计值百分比(diffusion capacity of the lungs for carbon monoxide as a percentage of the predicted value,DLCO%pred)<80%(P=0.016)、伴有肺部合并症病史(P<0.001)、脑卒中病史(P<0.001)、手术时长≥3 h(P=0.018)为术后出现并发症的独立预测因素。而伴有肺部合并症病史(P<0.001)及手术时长≥3 h(P=0.002)是术后出现肺部并发症的独立危险因素(P<0.05)。结论老年肺癌患者可能因肺部合并症、低肺功能、手术时间等出现术后并发症,因此术前应充分评估老年肺癌患者的生理情况。通过加强围术期管理降低术后并发症的发生率,降低术后并发症对老年肺癌患者行单孔胸腔镜手术治疗效果的影响。
基金supported by funds from the National Natural Science Foundation of China(31970363,31161140350)the Key Basic Research Program of Yunnan Province,China(202101BC070003)supported by the Scottish Government’s Rural and Environment Science and Analytical Services division。
文摘Chinese Assam tea(Camellia sinensis var.assamica)is an important tea crop with a long history of cultivation in Yunnan,China.Despite its potential value as a genetic resource,its genetic diversity and domestication/breeding history remain unclear.To address this issue,we genotyped 469 ancient tea plant trees representing 26 C.sinensis var.assamica populations,plus two of its wild relatives(six and three populations of C.taliensis and C.crassicolumna,respectively)using 16 nuclear microsatellite loci.Results showed that Chinese Assam tea has a relatively high,but comparatively lower gene diversity(H_(S)=0.638)than the wild relative C.crassicolumna(H_S=0.658).Clustering in STRUCTURE indicated that Chinese Assam tea and its two wild relatives formed distinct genetic groups,with considerable interspecific introgression.The Chinese Assam tea accessions clustered into three gene pools,corresponding well with their geographic distribution.However,New Hybrids analysis indicated that 68.48%of ancient Chinese Assam tea plants from Xishuangbanna were genetic intermediates between the Puer and Lincang gene pools.In addition,10%of the ancient Chinese Assam tea individuals were found to be hybrids between Chinese Assam tea and C.taliensis.Our results suggest that Chinese Assam tea was domesticated separately in three gene pools(Puer,Lincang and Xishuangbanna)in the Mekong River valley and that the hybrids were subsequently selected during the domestication process.Although the domestication history of Chinese Assam tea in southwestern Yunnan remains complex,our results will help to identify valuable genetic resources that may be useful in future tea breeding programs.
基金the financial support from the National Key Research and Development Program of China(2022YFB4600101)the National Natural Science Foundation of China(52175201,52005484,and 52205228)+6 种基金the Research Program of Science and Technology Department of Gansu Province(21YF5FA139 and 22JR5RA107)the Shandong Provincial Natural Science Foundation(ZR2023OE090)the Major Program(ZYFZFX-2)the Cooperation Foundation for Young Scholars(HZJJ23-02)of the Lanzhou Institute of Chemical Physics,CASthe Western Light Project,CAS(xbzg-zdsys-202007)the Taishan Scholars Programthe Oasis Scholar of Shihezi University。
文摘Hydrogels inevitably undergo dehydration,structural collapse,and shrinkage deformation due to the uninterrupted evaporation in the atmosphere,thereby losing their flexibility,slipperiness,and manufacturing precision.Here,we propose a novel bioinspired strategy to construct a spontaneously formed‘skin’on the slippery hydrogels by incorporating biological stress metabolites trehalose into the hydrogel network,which can generate robust hydrogen bonding interactions to restrain water evaporation.The contents of trehalose in hydrogel matrix can also regulate the desiccation-tolerance,mechanical properties,and lubricating performance of slippery hydrogels in a wide range.Combining vat photopolymerization three-dimensional printing and trehalose-modified slippery hydrogels enables to achieve the structural hydrogels with high resolution,shape fidelity,and sophisticated architectures,instead of structural collapse and shrinkage deformation caused by dehydration.And thus,this proposed functional hydrogel adapts to manufacture large-scale hydrogels with sophisticated architectures in a long-term process.As a proof-of-concept demonstration,a high-precision and sophisticated slippery hydrogel vascular phantom was easily fabricated to imitate guidewire intervention.Additionally,the proposed protocol is universally applicable to diverse types of hydrogel systems.This strategy opens up a versatile methodology to fabricate dry-resistant slippery hydrogel for functional structures and devices,expanding their high-precision processing and broad applications in the atmosphere.
