Caprine arthritis-encephalitis virus(CAEV) is an under-studied virus infecting caprines and ovines worldwide. Over the last four decades, CAEV has spread in China, obtaining genomic data on CAEV strains circulating in...Caprine arthritis-encephalitis virus(CAEV) is an under-studied virus infecting caprines and ovines worldwide. Over the last four decades, CAEV has spread in China, obtaining genomic data on CAEV strains circulating in China is of importance for developing diagnostic methods and eradicating associated diseases. However, there is limited information on the genome, including characterizations, and the probable origin. This work aimed to characterize Chinese CAEV genomes and population structures. Five CAEV strains isolated from infected dairy goats between 1989and 1994 in Gansu, Guizhou, Shaanxi, Shandong and Sichuan provinces were cloned and sequenced. The Chinese CAEV had a 58–93% genome similarities to strains outside of China, and they belonged to subgenotype B1. The highest similarity levels(98.3–99.3%) were with two other Chinese strains, and they shared a 91.8–92.3% similarity with the strain Clements(GenBank accession no. NC_001463.1) from outside of China. The Chinese CAEV strains isolated from different provinces over five years were still highly homologous and contained unique ancestral population components,indicating that these Chinese strains had a common origin that differed from other known strains. Our results provide genomic data on circulating Chinese CAEV strains and will be useful for future epidemiological investigations and CAEV eradication programs.展开更多
目的探讨阴茎癌腹股沟淋巴结清扫术中保留大隐静脉能否减少术后并发症的发生。方法在中国知网、万方、维普、中国生物医学文献数据库、Web of Science、PubMed、Cochrane Library等电子数据库中进行阴茎癌腹股沟淋巴结清扫术相关文献检...目的探讨阴茎癌腹股沟淋巴结清扫术中保留大隐静脉能否减少术后并发症的发生。方法在中国知网、万方、维普、中国生物医学文献数据库、Web of Science、PubMed、Cochrane Library等电子数据库中进行阴茎癌腹股沟淋巴结清扫术相关文献检索,检索时限从建库至2017年4月1日。由2名研究者独立交叉阅读筛选及提取文献信息,第3名研究员对结果进行对比核查。结果纳入符合标准的文献共39篇。开放腹股沟淋巴结清扫术组12篇(其中单纯保留大隐静脉组7篇,单纯切除大隐静脉组2篇,有3篇文献同时对比保留大隐静脉组及切除大隐静脉组),腹腔镜下腹股沟淋巴结清扫术组27篇(其中单纯保留大隐静脉组8篇,单纯切除大隐静脉组18篇,有1篇文献同时对比保留大隐静脉组及切除大隐静脉组)。保留大隐静脉/不保留大隐静脉的开放腹股沟淋巴结清扫术病例的切口感染率、皮瓣坏死率、淋巴肿发生率、血清肿发生率、下肢水肿发生率差异均有统计学意义(P<0.05)。保留大隐静脉/不保留大隐静脉的腹腔镜下腹股沟淋巴结清扫术病例的切口感染率、血清肿发生率、下肢水肿发生率差异亦有统计学意义(P<0.05)。结论无论在开放或是腹腔镜腹股沟淋巴结清扫术中,保留大隐静脉相对于不保留者能显著减少术后并发症的发生。展开更多
Huayouza 6, a new semi-winter Brassica napus variety with high-yield, good quality, prematufity and extensive adaptability, was derived from the cross between the female parent 8086A and male parent 7-5. Two cDNA-base...Huayouza 6, a new semi-winter Brassica napus variety with high-yield, good quality, prematufity and extensive adaptability, was derived from the cross between the female parent 8086A and male parent 7-5. Two cDNA-based Arabidopisis microarray were used to analyze gene differential expression in bud of an elite B.napus hybrid Huayouza6 and its parents, in which there were 83 over-expression transcripts and 331 under-expression transcripts between Huayouza 6 and its female parent 8086A and 94 over-expression transcripts, and 423 under-expression transcripts were demonstrated between Huayouza 6 and its male parent 7-5. Further analysis showed that there were significant number of genes responsible for photosynthesis, and its implication for heterosis was discussed. Northern analysis of phosphoribulokinase coincided with its expression pattern derived from hybridization of Arabidopsis cDNA microarray and B. napus mRNA, this system of heterologous hybridization analysis should be applicable to other close relatives of Arabidopsis thaliana.展开更多
Background Alemtuzumab, a humanized CD52 monoclonal antibody, with its profound lymphocyte depletion property, was expected to be a promising induction therapy agent for kidney transplantation （KTx）. However, curren...Background Alemtuzumab, a humanized CD52 monoclonal antibody, with its profound lymphocyte depletion property, was expected to be a promising induction therapy agent for kidney transplantation （KTx）. However, currently no consensus is available about its efficacy and safety. The aim of this meta-analysis was to make a profound review and an objective appraisal of this issue. Methods Relevant papers were searched, essentially in the PubMed database and the Cochrane library. After a thorough review, randomized controlled trials （RCTs） comparing the outcome of KTx using alemtuzumab induction therapy （test group） with a control group were collected according to the inclusion criteria. Data of general characteristic of studies and major outcomes of Ktx were extracted and meta-analyses were performed with RevMan 4.2 software. The odds ratio （OR） with a 95% confidence intervals （Co was the principle measurement of effect. Results Five RCTs were included. The chi square test showed no significant between-study heterogeneity, thus fixed effect model was employed. Sub-group analysis with studies including alemtuzumab induction followed by a tacrolimus-based immunosuppressive regimen showed that the acute rejection rate （ARR） was lower relative to the control （OR=0.59, 95% CI 0.34-1.01, P=0.05）. However, meta-analysis with all included studies revealed that neither ARR nor patient/graff survival rates differ significantly between the test and the control group, but the cytomegalovirus （CMV） infection rate was higher in the test group （OR 2.50, 95% CI 1.22-5.12, P=0.01）. A great number of the test group recipients safely remained on a regimen that was steroid-free and with a reduced dose of conventional immunosuppressive drugs. Conclusions Alemtuzumab induction therapy for KTx was an effective and safe protocol in the tested follow-up period. Steroid avoidance and a dose reduction of conventional immunosuppressive drugs after alemtuzumab induction therapy may have clinical importance. However, high quality RCTs with larger population and longer follow-up are needed for a more accurate and objective appraisal of this novel protocol.展开更多
基金funded by the National Key Research and Development Program of China(2016YFD0500908)。
文摘Caprine arthritis-encephalitis virus(CAEV) is an under-studied virus infecting caprines and ovines worldwide. Over the last four decades, CAEV has spread in China, obtaining genomic data on CAEV strains circulating in China is of importance for developing diagnostic methods and eradicating associated diseases. However, there is limited information on the genome, including characterizations, and the probable origin. This work aimed to characterize Chinese CAEV genomes and population structures. Five CAEV strains isolated from infected dairy goats between 1989and 1994 in Gansu, Guizhou, Shaanxi, Shandong and Sichuan provinces were cloned and sequenced. The Chinese CAEV had a 58–93% genome similarities to strains outside of China, and they belonged to subgenotype B1. The highest similarity levels(98.3–99.3%) were with two other Chinese strains, and they shared a 91.8–92.3% similarity with the strain Clements(GenBank accession no. NC_001463.1) from outside of China. The Chinese CAEV strains isolated from different provinces over five years were still highly homologous and contained unique ancestral population components,indicating that these Chinese strains had a common origin that differed from other known strains. Our results provide genomic data on circulating Chinese CAEV strains and will be useful for future epidemiological investigations and CAEV eradication programs.
文摘目的探讨阴茎癌腹股沟淋巴结清扫术中保留大隐静脉能否减少术后并发症的发生。方法在中国知网、万方、维普、中国生物医学文献数据库、Web of Science、PubMed、Cochrane Library等电子数据库中进行阴茎癌腹股沟淋巴结清扫术相关文献检索,检索时限从建库至2017年4月1日。由2名研究者独立交叉阅读筛选及提取文献信息,第3名研究员对结果进行对比核查。结果纳入符合标准的文献共39篇。开放腹股沟淋巴结清扫术组12篇(其中单纯保留大隐静脉组7篇,单纯切除大隐静脉组2篇,有3篇文献同时对比保留大隐静脉组及切除大隐静脉组),腹腔镜下腹股沟淋巴结清扫术组27篇(其中单纯保留大隐静脉组8篇,单纯切除大隐静脉组18篇,有1篇文献同时对比保留大隐静脉组及切除大隐静脉组)。保留大隐静脉/不保留大隐静脉的开放腹股沟淋巴结清扫术病例的切口感染率、皮瓣坏死率、淋巴肿发生率、血清肿发生率、下肢水肿发生率差异均有统计学意义(P<0.05)。保留大隐静脉/不保留大隐静脉的腹腔镜下腹股沟淋巴结清扫术病例的切口感染率、血清肿发生率、下肢水肿发生率差异亦有统计学意义(P<0.05)。结论无论在开放或是腹腔镜腹股沟淋巴结清扫术中,保留大隐静脉相对于不保留者能显著减少术后并发症的发生。
文摘Huayouza 6, a new semi-winter Brassica napus variety with high-yield, good quality, prematufity and extensive adaptability, was derived from the cross between the female parent 8086A and male parent 7-5. Two cDNA-based Arabidopisis microarray were used to analyze gene differential expression in bud of an elite B.napus hybrid Huayouza6 and its parents, in which there were 83 over-expression transcripts and 331 under-expression transcripts between Huayouza 6 and its female parent 8086A and 94 over-expression transcripts, and 423 under-expression transcripts were demonstrated between Huayouza 6 and its male parent 7-5. Further analysis showed that there were significant number of genes responsible for photosynthesis, and its implication for heterosis was discussed. Northern analysis of phosphoribulokinase coincided with its expression pattern derived from hybridization of Arabidopsis cDNA microarray and B. napus mRNA, this system of heterologous hybridization analysis should be applicable to other close relatives of Arabidopsis thaliana.
文摘Background Alemtuzumab, a humanized CD52 monoclonal antibody, with its profound lymphocyte depletion property, was expected to be a promising induction therapy agent for kidney transplantation （KTx）. However, currently no consensus is available about its efficacy and safety. The aim of this meta-analysis was to make a profound review and an objective appraisal of this issue. Methods Relevant papers were searched, essentially in the PubMed database and the Cochrane library. After a thorough review, randomized controlled trials （RCTs） comparing the outcome of KTx using alemtuzumab induction therapy （test group） with a control group were collected according to the inclusion criteria. Data of general characteristic of studies and major outcomes of Ktx were extracted and meta-analyses were performed with RevMan 4.2 software. The odds ratio （OR） with a 95% confidence intervals （Co was the principle measurement of effect. Results Five RCTs were included. The chi square test showed no significant between-study heterogeneity, thus fixed effect model was employed. Sub-group analysis with studies including alemtuzumab induction followed by a tacrolimus-based immunosuppressive regimen showed that the acute rejection rate （ARR） was lower relative to the control （OR=0.59, 95% CI 0.34-1.01, P=0.05）. However, meta-analysis with all included studies revealed that neither ARR nor patient/graff survival rates differ significantly between the test and the control group, but the cytomegalovirus （CMV） infection rate was higher in the test group （OR 2.50, 95% CI 1.22-5.12, P=0.01）. A great number of the test group recipients safely remained on a regimen that was steroid-free and with a reduced dose of conventional immunosuppressive drugs. Conclusions Alemtuzumab induction therapy for KTx was an effective and safe protocol in the tested follow-up period. Steroid avoidance and a dose reduction of conventional immunosuppressive drugs after alemtuzumab induction therapy may have clinical importance. However, high quality RCTs with larger population and longer follow-up are needed for a more accurate and objective appraisal of this novel protocol.
