AIM: To evaluate the significance of γ-catenin in clinical pathology, cellular function and signaling mechanism in esophageal squamous cell carcinoma (ESCC).
Stereocomplex(SC)crystallization has been an effective way to improve the physical performances of stereoregular polymers.However,the competition between homo and SC crystallizations can lead to more complicated cryst...Stereocomplex(SC)crystallization has been an effective way to improve the physical performances of stereoregular polymers.However,the competition between homo and SC crystallizations can lead to more complicated crystallization kinetics and polymorphic crystalline structure in stereocomplexable polymers,which influences the physical properties of obtained materials.Herein,we select the medium-molecular-weight(MMW)poly(L-lactic acid)/poly(D-lactic acid)(PLLA/PDLA)asymmetric blends with different PDLA fractions(f_(D)=0.01-0.5)as the model system and investigate the effects of f_(D) and crystallization temperature(T_(c))on the crystallization kinetics and polymorphic crystalline structure.We observe the fractionated(i.e.,multistep)crystallization kinetics and the formation of peculiar β-form homocrystals(HCs)in the asymmetric blends under quiescent conditions,which are strongly influenced by both f_(D) and T_(c).Precisely,crystallization of β-form HCs is favorable in the MMW PLLA/PDLA blends with high f_(D)(≥0.2)at a low T_(c)(80-100℃).It is proposed that the formation of metastable β-form HCs is attributed to the conformational matching between β-form HCs and SCs,and the stronger constrain effects of precedingly-formed SCs in the early stage of crystallization.Such effects can also cause the multistep crystallization kinetics of MMW PLLA/PDLA asymmetric blends in the heating process.展开更多
目的分析少弱精子不育症患者中医证候的流行病学特征。方法应用临床流行病学调查中横断面研究的方法,全部数据由两个横断面数据组成,统计数据中人口学、病史、中医证候诊断等30余种指标并进行整理汇总,运用SPSS20.0 for windows对数据...目的分析少弱精子不育症患者中医证候的流行病学特征。方法应用临床流行病学调查中横断面研究的方法,全部数据由两个横断面数据组成,统计数据中人口学、病史、中医证候诊断等30余种指标并进行整理汇总,运用SPSS20.0 for windows对数据进行处理,采用构成比的方法进行统计学分析。结果在所调查的所有少弱精子不育症患者中,年龄平均值为32.8岁,出现最多的六个症状为腰膝酸软、神疲乏力、耳鸣盗汗、早泄、阴囊潮湿、失眠多梦;证型分布上,以肾阳虚衰证与肾阴不足证的患者最多,复合型证候中占比最多的为肾阴阳两虚证。结论少弱精子不育症患者中医证候以肾虚证为主,肾阳亏虚与肾阴不足可影响肾的功能进而引起不育,中医以肾为核心的生殖生理理论对于指导不育症的防治具有重要意义。展开更多
基金Supported by the National Natural Science Foundation of China,No.81101613the Guangdong Provincial Natural Science Foundation of China,No.S2011040004363+2 种基金the Specialized Research Fund for the Doctoral Program of Higher Education of China,No.20114402120005the National Basic Research Program of China,No.2012CB526600the Natural Science Foundation of China-Guangdong Joint Fund,No.U0932001
文摘AIM: To evaluate the significance of γ-catenin in clinical pathology, cellular function and signaling mechanism in esophageal squamous cell carcinoma (ESCC).
基金financially supported by the National Natural Science Foundation of China(No.21873083).
文摘Stereocomplex(SC)crystallization has been an effective way to improve the physical performances of stereoregular polymers.However,the competition between homo and SC crystallizations can lead to more complicated crystallization kinetics and polymorphic crystalline structure in stereocomplexable polymers,which influences the physical properties of obtained materials.Herein,we select the medium-molecular-weight(MMW)poly(L-lactic acid)/poly(D-lactic acid)(PLLA/PDLA)asymmetric blends with different PDLA fractions(f_(D)=0.01-0.5)as the model system and investigate the effects of f_(D) and crystallization temperature(T_(c))on the crystallization kinetics and polymorphic crystalline structure.We observe the fractionated(i.e.,multistep)crystallization kinetics and the formation of peculiar β-form homocrystals(HCs)in the asymmetric blends under quiescent conditions,which are strongly influenced by both f_(D) and T_(c).Precisely,crystallization of β-form HCs is favorable in the MMW PLLA/PDLA blends with high f_(D)(≥0.2)at a low T_(c)(80-100℃).It is proposed that the formation of metastable β-form HCs is attributed to the conformational matching between β-form HCs and SCs,and the stronger constrain effects of precedingly-formed SCs in the early stage of crystallization.Such effects can also cause the multistep crystallization kinetics of MMW PLLA/PDLA asymmetric blends in the heating process.
文摘目的分析少弱精子不育症患者中医证候的流行病学特征。方法应用临床流行病学调查中横断面研究的方法,全部数据由两个横断面数据组成,统计数据中人口学、病史、中医证候诊断等30余种指标并进行整理汇总,运用SPSS20.0 for windows对数据进行处理,采用构成比的方法进行统计学分析。结果在所调查的所有少弱精子不育症患者中,年龄平均值为32.8岁,出现最多的六个症状为腰膝酸软、神疲乏力、耳鸣盗汗、早泄、阴囊潮湿、失眠多梦;证型分布上,以肾阳虚衰证与肾阴不足证的患者最多,复合型证候中占比最多的为肾阴阳两虚证。结论少弱精子不育症患者中医证候以肾虚证为主,肾阳亏虚与肾阴不足可影响肾的功能进而引起不育,中医以肾为核心的生殖生理理论对于指导不育症的防治具有重要意义。
