AIM: To reveal the correlation between the functional differentiation phenotypes of gastric carcinoma cells and the invasion and metastasis by a new way of cell-function classification.METHODS:Surgically resected spec...AIM: To reveal the correlation between the functional differentiation phenotypes of gastric carcinoma cells and the invasion and metastasis by a new way of cell-function classification.METHODS:Surgically resected specimens of 361 gastric carcinomas(GC) were investigated with enzyme-, mucin-, and tumor-related marker immunohistochemistry. According to the direction of cell-function differentiation, stomach carcinomas were divided into five functionally differentiated types. RESULTS: (1) Absorptive function differentiation type (AFDT): there were 82 (22.7%) patients including 76 (92.7%) aged 45 years. Sixty-nine (84.1%) cases belonged to the intestinal type. Thirty-eight (46.3%) expressed CD44v6 and 9 (13.6%) of 66 male patients developed liver metastasis.The 5-year survival rate of patients in this group (58.5%) was higher than those with the other types (P【0.01). (2) Mucin secreting function differentiation type (MSFDT): 54 (15%) cases. Fifty-three (98.1%) tumors had penetrated the serosa, 12 (22.2%) expressed ER and 22 (40.7%) expressed CD44v6. The postoperative 5-year survival rate was 28.6%. (3) Absorptive and mucin-producing function differentiation type (AMPFDT): there were 180 (49.9%) cases, including 31 (17.2%) aged younger than 45 years. The tumor was more common in women (62, 34.4%,) and expressed more frequently estrogen receptors (ER) (129, 81.7%) than other types (P【0.01). Ovary metastasis was found in 12 (19.4%) out of 62 female subjects. The patients with this type GC had the lowest 5-year survival rate (24.7%) among all types. (4) Specific function differentiation type (SFDT): 13 (3.6%) cases. Nine (69.2%) tumors of this type derived from APUD system, the other 4 (30.7%) were of different histological differentiation. Sixty per cent of the patients survived at least five years. (5) Non-function differentiation type (NFDT): 32 (8.9%) cases. Nineteen (59.4%) cases had lymph node metastases but no one with liver or ovary metastasis. The 5-year survival rate was 28.1%. CONCLUSION: This new cell-f展开更多
On the bases of archaeological discoveries, the earliest domestication of rice has been confirmed in the middle and lower Changjiang River basin, while in the region wild rice populations are found in shallow swamps u...On the bases of archaeological discoveries, the earliest domestication of rice has been confirmed in the middle and lower Changjiang River basin, while in the region wild rice populations are found in shallow swamps under a climate with freezing winter cold. These findings lead us to-examine the past ideas about domestication and differentiation of rice. Historically, in 1930s two sub-species, indica and japonica, were proposed on the basis of sterility in F1 hybrids between them. Soon after that, the two types were classified by the associations of a number of genetically independent traits. The characteristic associations of traits have been explained by the hybrid sterility or reproductive barriers which were assumed to comprise a set of duplicate recessive lethal genes and to be an inner genetic mechanism to lead to the varietal differentiations In 1980s, the hybrid sterility between Indica and Japonica types was analyzed, and Indica, Japonica, and wide-compatibility type which gives fertile hybrids when cross to Indica and Japonica types, are proved to contain an allele, S5＇, S5＇ and S5^n, respectively at a locus on chromosome 6. And those gametes having Sj allele are found to be partially aborted in the hybrid genotypes of S5＇/S5＇ while no gamete abortion occurs in S5＇/S5^n and S5＇/S5^n genotypes. Since then, the gene S5^n has been used in hybrid rice breeding to obtain fertile and vigorous hybrids between subspecies, and the long-disputed problem of hybrid sterility has been solved. Also in such studies the characteristic association of traits found in each of vadetal groups is better explained by founder effects. On the other hand, a large number of native cultivars of rice were surveyed with enzyme polymorphism in 1980s and later with molecular markers. As a result, profound genetic diversity is found in cultivated rice as well as in wild rice. These findings seem to lead us to the idea of multiple independent domestications of rice. However, before reaching such a conclusion, at least two fa展开更多
目的:幽门螺杆菌(Helicobacter pylori,H.p y l o r i)感染与原发性肝癌(p r i m a r y h e p a t i c carcinoma,PHC)的发生发展.方法:收集2010-03/2013-10广西医科大学附属肿瘤医院首次诊断为PHC患者临床资料及非肿瘤患者临床资料.探...目的:幽门螺杆菌(Helicobacter pylori,H.p y l o r i)感染与原发性肝癌(p r i m a r y h e p a t i c carcinoma,PHC)的发生发展.方法:收集2010-03/2013-10广西医科大学附属肿瘤医院首次诊断为PHC患者临床资料及非肿瘤患者临床资料.探讨H.pylori与PHC发生发展的关系.然后,再对实验组进行二次收集,分两组数据,一组为乙型肝炎病毒(hepatitis B virus,HBV)组,为同时检测H.pylori14C-UBT值与HBV DNA拷贝数;另一组为甲胎蛋白(alpha-fetal protein,AFP)组,为同时检测同时H.pylori14C-UBT值与AFP浓度患者.分别研究H.pylori14C-UBT值与AFP浓度、HBV DNA拷贝数之间的关系,间接证明H.pylori与P H C的相关性.对于计数资料使用χ2检验,若为有序资料则用秩和检验;计量资料,采用相关分析.结果:PHC患者H.pylori阳性率为61.4%,高于非肿瘤患者28.7%.卡方检验结果示χ2=11.466,P<0.05,差异有统计学意义.胆管细胞型H.pylori的阳性率61.1%,混合细胞型50%,肝细胞型38.6%,以胆管细胞型阳性率最高;统计结果χ2=5.866,P<0.05,差异具有统计学意义.高分化28.5%,中分化39.2%,低分化48.9%;分化程度低,感染率高.平均秩H.pylori阳性为124.9,阴性145.2,P<0.05,故分化程度越低则H.pylori感染阳性率越高.分期方面,分期较早的Ⅰ期14.2%、Ⅱ期10.7%较分期较晚的Ⅲ期41.28%、Ⅳ期48.2%高;平均秩H.pylori阳性为164.9,阴性为127.6,P=0.00<0.05.故分期越晚则H.p y l o r i感染阳性率高.高侵袭性患者的阳性率为59.7%;低侵袭性为26.1%,卡方检验结果为χ2=21.025,P<0.05,两者差异有显著性.性别、年龄间差异无统计学意义.H.pylori14C-UBT值与AFP浓度的相关系数r=0.88,P=0.00<0.05;而其与HBV DNA拷贝数间的相关系数r=0.657,P=0.01<0.05,两者均呈正相关关系,差异均有统计学意义.结论:H.pylori感染与PHC发生、发展关系较密切.展开更多
Background:Clinical assessment and treatment guidance for heart failure depends on a variety of biomarkers.The objective of this study was to investigate the prognostic predictive value of growth differentiation facto...Background:Clinical assessment and treatment guidance for heart failure depends on a variety of biomarkers.The objective of this study was to investigate the prognostic predictive value of growth differentiation factor-15(GDF-15)and N-terminal prohormone of brain natriuretic peptide(NT-proBNP)in assessing hospitalized patients with acute heart failure(AHF).Methods:In total,260 patients who were admitted for AHF in the First Affiliated Hospital of Nanjing Medical University were enrolled from April 2012 to May 2016.Medical history and blood samples were collected within 24 h after the admission.The primary endpoint was the all-cause mortality within 1 year.The patients were divided into survival group and death group based on the endpoint.With established mortality risk factors and serum GDF-15 level,receiver-operator characteristic(ROC)analyses were performed.Cox regression analyses were used to further analyze the combination values of NT-proBNP and GDF-15.Results:Baseline GDF-15 and NT-proBNP were significantly higher amongst deceased than those in survivors(P<0.001).In ROC analyses,area under curve(AUC)for GDF-15 to predict 1-year mortality was 0.707(95%confidence interval[CI]:0.648–0.762,P<0.001),and for NT-proBNP was 0.682(95%CI:0.622–0.738,P<0.001).No statistically significant difference was found between the two markers(P=0.650).Based on the optimal cut-offs(GDF-15:4526.0 ng/L;NT-proBNP:1978.0 ng/L),the combination of GDF-15 and NT-proBNP increased AUC for 1-year mortality prediction(AUC=0.743,95%CI:0.685–0.795,P<0.001).Conclusions:GDF-15,as a prognostic marker in patients with AHF,is not inferior to NT-proBNP.Combining the two markers could provide an early recognition of high-risk patients and improve the prediction values of AHF long-term prognosis.Clinical trial registration:ChiCTR-ONC-12001944,http://www.chictr.org.cn.展开更多
基金Project supported by the National Natural Science Foundation of China, No. 39270300. No. 39370772Training Program for Trans-Century Talents by the State Education Commission of China
文摘AIM: To reveal the correlation between the functional differentiation phenotypes of gastric carcinoma cells and the invasion and metastasis by a new way of cell-function classification.METHODS:Surgically resected specimens of 361 gastric carcinomas(GC) were investigated with enzyme-, mucin-, and tumor-related marker immunohistochemistry. According to the direction of cell-function differentiation, stomach carcinomas were divided into five functionally differentiated types. RESULTS: (1) Absorptive function differentiation type (AFDT): there were 82 (22.7%) patients including 76 (92.7%) aged 45 years. Sixty-nine (84.1%) cases belonged to the intestinal type. Thirty-eight (46.3%) expressed CD44v6 and 9 (13.6%) of 66 male patients developed liver metastasis.The 5-year survival rate of patients in this group (58.5%) was higher than those with the other types (P【0.01). (2) Mucin secreting function differentiation type (MSFDT): 54 (15%) cases. Fifty-three (98.1%) tumors had penetrated the serosa, 12 (22.2%) expressed ER and 22 (40.7%) expressed CD44v6. The postoperative 5-year survival rate was 28.6%. (3) Absorptive and mucin-producing function differentiation type (AMPFDT): there were 180 (49.9%) cases, including 31 (17.2%) aged younger than 45 years. The tumor was more common in women (62, 34.4%,) and expressed more frequently estrogen receptors (ER) (129, 81.7%) than other types (P【0.01). Ovary metastasis was found in 12 (19.4%) out of 62 female subjects. The patients with this type GC had the lowest 5-year survival rate (24.7%) among all types. (4) Specific function differentiation type (SFDT): 13 (3.6%) cases. Nine (69.2%) tumors of this type derived from APUD system, the other 4 (30.7%) were of different histological differentiation. Sixty per cent of the patients survived at least five years. (5) Non-function differentiation type (NFDT): 32 (8.9%) cases. Nineteen (59.4%) cases had lymph node metastases but no one with liver or ovary metastasis. The 5-year survival rate was 28.1%. CONCLUSION: This new cell-f
文摘On the bases of archaeological discoveries, the earliest domestication of rice has been confirmed in the middle and lower Changjiang River basin, while in the region wild rice populations are found in shallow swamps under a climate with freezing winter cold. These findings lead us to-examine the past ideas about domestication and differentiation of rice. Historically, in 1930s two sub-species, indica and japonica, were proposed on the basis of sterility in F1 hybrids between them. Soon after that, the two types were classified by the associations of a number of genetically independent traits. The characteristic associations of traits have been explained by the hybrid sterility or reproductive barriers which were assumed to comprise a set of duplicate recessive lethal genes and to be an inner genetic mechanism to lead to the varietal differentiations In 1980s, the hybrid sterility between Indica and Japonica types was analyzed, and Indica, Japonica, and wide-compatibility type which gives fertile hybrids when cross to Indica and Japonica types, are proved to contain an allele, S5＇, S5＇ and S5^n, respectively at a locus on chromosome 6. And those gametes having Sj allele are found to be partially aborted in the hybrid genotypes of S5＇/S5＇ while no gamete abortion occurs in S5＇/S5^n and S5＇/S5^n genotypes. Since then, the gene S5^n has been used in hybrid rice breeding to obtain fertile and vigorous hybrids between subspecies, and the long-disputed problem of hybrid sterility has been solved. Also in such studies the characteristic association of traits found in each of vadetal groups is better explained by founder effects. On the other hand, a large number of native cultivars of rice were surveyed with enzyme polymorphism in 1980s and later with molecular markers. As a result, profound genetic diversity is found in cultivated rice as well as in wild rice. These findings seem to lead us to the idea of multiple independent domestications of rice. However, before reaching such a conclusion, at least two fa
文摘目的:幽门螺杆菌(Helicobacter pylori,H.p y l o r i)感染与原发性肝癌(p r i m a r y h e p a t i c carcinoma,PHC)的发生发展.方法:收集2010-03/2013-10广西医科大学附属肿瘤医院首次诊断为PHC患者临床资料及非肿瘤患者临床资料.探讨H.pylori与PHC发生发展的关系.然后,再对实验组进行二次收集,分两组数据,一组为乙型肝炎病毒(hepatitis B virus,HBV)组,为同时检测H.pylori14C-UBT值与HBV DNA拷贝数;另一组为甲胎蛋白(alpha-fetal protein,AFP)组,为同时检测同时H.pylori14C-UBT值与AFP浓度患者.分别研究H.pylori14C-UBT值与AFP浓度、HBV DNA拷贝数之间的关系,间接证明H.pylori与P H C的相关性.对于计数资料使用χ2检验,若为有序资料则用秩和检验;计量资料,采用相关分析.结果:PHC患者H.pylori阳性率为61.4%,高于非肿瘤患者28.7%.卡方检验结果示χ2=11.466,P<0.05,差异有统计学意义.胆管细胞型H.pylori的阳性率61.1%,混合细胞型50%,肝细胞型38.6%,以胆管细胞型阳性率最高;统计结果χ2=5.866,P<0.05,差异具有统计学意义.高分化28.5%,中分化39.2%,低分化48.9%;分化程度低,感染率高.平均秩H.pylori阳性为124.9,阴性145.2,P<0.05,故分化程度越低则H.pylori感染阳性率越高.分期方面,分期较早的Ⅰ期14.2%、Ⅱ期10.7%较分期较晚的Ⅲ期41.28%、Ⅳ期48.2%高;平均秩H.pylori阳性为164.9,阴性为127.6,P=0.00<0.05.故分期越晚则H.p y l o r i感染阳性率高.高侵袭性患者的阳性率为59.7%;低侵袭性为26.1%,卡方检验结果为χ2=21.025,P<0.05,两者差异有显著性.性别、年龄间差异无统计学意义.H.pylori14C-UBT值与AFP浓度的相关系数r=0.88,P=0.00<0.05;而其与HBV DNA拷贝数间的相关系数r=0.657,P=0.01<0.05,两者均呈正相关关系,差异均有统计学意义.结论:H.pylori感染与PHC发生、发展关系较密切.
文摘Background:Clinical assessment and treatment guidance for heart failure depends on a variety of biomarkers.The objective of this study was to investigate the prognostic predictive value of growth differentiation factor-15(GDF-15)and N-terminal prohormone of brain natriuretic peptide(NT-proBNP)in assessing hospitalized patients with acute heart failure(AHF).Methods:In total,260 patients who were admitted for AHF in the First Affiliated Hospital of Nanjing Medical University were enrolled from April 2012 to May 2016.Medical history and blood samples were collected within 24 h after the admission.The primary endpoint was the all-cause mortality within 1 year.The patients were divided into survival group and death group based on the endpoint.With established mortality risk factors and serum GDF-15 level,receiver-operator characteristic(ROC)analyses were performed.Cox regression analyses were used to further analyze the combination values of NT-proBNP and GDF-15.Results:Baseline GDF-15 and NT-proBNP were significantly higher amongst deceased than those in survivors(P<0.001).In ROC analyses,area under curve(AUC)for GDF-15 to predict 1-year mortality was 0.707(95%confidence interval[CI]:0.648–0.762,P<0.001),and for NT-proBNP was 0.682(95%CI:0.622–0.738,P<0.001).No statistically significant difference was found between the two markers(P=0.650).Based on the optimal cut-offs(GDF-15:4526.0 ng/L;NT-proBNP:1978.0 ng/L),the combination of GDF-15 and NT-proBNP increased AUC for 1-year mortality prediction(AUC=0.743,95%CI:0.685–0.795,P<0.001).Conclusions:GDF-15,as a prognostic marker in patients with AHF,is not inferior to NT-proBNP.Combining the two markers could provide an early recognition of high-risk patients and improve the prediction values of AHF long-term prognosis.Clinical trial registration:ChiCTR-ONC-12001944,http://www.chictr.org.cn.
