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Clinical significance of signet ring cells in surgical esophageal and esophagogastric junction adenocarcinoma:A systematic review and meta-analysis 被引量:1
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作者 Yi-Fan Wang Si-Yu Xu +2 位作者 Yan Wang Guo-Wei Che hai-tao ma 《World Journal of Clinical Cases》 SCIE 2021年第35期10969-10978,共10页
BACKGROUND The clinical significance of signet ring cells(SRCs)in surgical esophageal and esophagogastric junction adenocarcinoma(EEGJA)remains unclear now.AIM To explore the association between the presence of SRCs a... BACKGROUND The clinical significance of signet ring cells(SRCs)in surgical esophageal and esophagogastric junction adenocarcinoma(EEGJA)remains unclear now.AIM To explore the association between the presence of SRCs and the clinicopathological and prognostic characteristics in surgical EEGJA patients by combining and analyzing relevant studies.METHODS The PubMed,Web of Science,and EMBASE electronic databases were searched for the relevant literature up to March 28,2021.The relative risk(RR)with 95%confidence interval(CI)was calculated to assess the relationship between SRCs and clinicopathological parameters of surgical EEGJA patients,and the hazard ratio(HR)with 95%CI was calculated to explore the impact of SRC on the prognosis.All statistical analyses were conducted with STATA 12.0 software.RESULTS A total of ten articles were included,involving 30322 EEGJA patients.The pooled results indicated that the presence of SRCs was significantly associated with tumor location(RR:0.76,95%CI:0.61-0.96,P=0.022;I2=49.4%,P=0.160)and tumor-node-metastasis stage(RR:1.30,95%CI:1.02-1.65,P=0.031;I2=73.1%,P=0.002).Meanwhile,the presence of SRCs in surgical EEGJA patients predicted a poor overall survival(HR:1.36,95%CI:1.12-1.65,P=0.002;I2=85.7%,P<0.001)and disease-specific survival(HR:1.86,95%CI:1.55-2.25,P<0.001;I2=63.1%,P=0.043).CONCLUSION The presence of SRCs is related with advanced tumor stage and poor prognosis and could serve as a reliable and effective parameter for the prediction of postoperative survival and formulation of therapy strategy in EEGJA patients.However,more high-quality studies are still needed to verify the above findings. 展开更多
关键词 Signet ring cells Esophageal and esophagogastric junction adenocarcinoma Clinicopathological characteristics PROGNOSIS Systematic review META-ANALYSIS
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A novel robust design method for improving stability of optimized structures 被引量:1
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作者 Ming-Jie Cao hai-tao ma Peng Wei 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2015年第1期104-111,共8页
It is known that structural optimization may lead to designs of structures having low stability and sometimes even kinematically unstable designs. This paper presents a robust design method for improving the stability... It is known that structural optimization may lead to designs of structures having low stability and sometimes even kinematically unstable designs. This paper presents a robust design method for improving the stability of opti mized structures. A new approach is proposed, in which cer tain perturbation loads are introduced and the corresponding compliance is added to the objective function as a penaliza tion. The stability of the optimized structures can thus be improved substantially by considering structural responses to the original and the introduced loads. Numerical exam ples show the simplicity and effectiveness of the proposed method. 展开更多
关键词 Structural optimization Robust design Penal-ization Perturbation loads
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Stimulated by retinoic acid gene 8 (Stra8) plays important roles in many stages of spermatogenesis 被引量:5
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作者 hai-tao ma Chang-Min Niu +4 位作者 Jing Xia Xue-Yi Shen Meng-Meng Xia Yan-Qiu Hu Ying Zheng 《Asian Journal of Andrology》 SCIE CAS CSCD 2018年第5期479-487,共9页
To clarify the functions and mechanism of stimulated by retinoic acid gene 8 (Stra8) in spermatogenesis, we analyzed the testes from Stra8 knockout and wild-type mice during the first wave of spermatogenesis. Compar... To clarify the functions and mechanism of stimulated by retinoic acid gene 8 (Stra8) in spermatogenesis, we analyzed the testes from Stra8 knockout and wild-type mice during the first wave of spermatogenesis. Comparisons showed no significant differences in morphology and number of germ cells at 11 days postpartum, while 21 differentially expressed genes (DEGs) associated with spermatogenesis were identified. We speculate that Stra8 performs many functions in different phases of spermatogenesis, such as establishment of spermatogonial stem cells, spermatogonial proliferation and self-renewal, spermatogonial differentiation and meiosis, through direct or indirect regulation of these DEGs. We therefore established a preliminary regulatory network of Stra8 during spermatogenesis. These results will provide a theoretical basis for further research on the mechanism underlying the role of Stra8 in spermatogenesis. 展开更多
关键词 differentiation MEIOSIS proliferation SPERMATOGENESIS SPERMATOGONIA Stra8
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Evaluation of inactivated COVID-19 vaccine on semen parameters in reproductive-age males:a retrospective cohort study 被引量:1
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作者 Hong Zhu Xiao Wang +10 位作者 Feng Zhang Yong Zhu Mei-Rong Du Zhi-Wen Tao Can Sun hai-tao ma Ya-Dong Li Guo-Qing Liang Jie Ren Bai-Lan Feng Feng Jiang 《Asian Journal of Andrology》 SCIE CAS CSCD 2022年第5期441-444,共4页
During the coronavirus disease(COVID-19)epidemic,there have been concerns about the impact of vaccines on people’s fertility,including the fertility of those who are currently preparing for pregnancy and those who mi... During the coronavirus disease(COVID-19)epidemic,there have been concerns about the impact of vaccines on people’s fertility,including the fertility of those who are currently preparing for pregnancy and those who might become pregnant in future.However,there is still a lack of research on the effect of the COVID-19 vaccine on male fertility,and it is not surprising that couples and donors have concerns regarding vaccination.In this study,a retrospective cohort study was conducted to examine semen quality before and after receipt of the inactivated COVID-19 vaccine.There were no statistically significant changes in semen parameters(volume,sperm concentration,progressive motility,and total progressive motile count)after two doses of vaccine(all P>0.05).In summary,our study updates the most recent studies on the effects of the COVID-19 vaccine on male fertility,and the information from this study could be used to guide fertility recommendations for assisted reproductive technology(ART)patients and donors. 展开更多
关键词 assisted reproductive technology coronavirus disease vaccine male fertility semen parameters sperm donation
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