Negation is a ubiquitous phenomenon in all languages.In Chinese,there are a good number of such negative expressions as“fēi(非)”,“bu(不)”,“méi(没)”,“mò(莫)”,“bié(别)”,“wèi(未)”,“w...Negation is a ubiquitous phenomenon in all languages.In Chinese,there are a good number of such negative expressions as“fēi(非)”,“bu(不)”,“méi(没)”,“mò(莫)”,“bié(别)”,“wèi(未)”,“wú(无)”,“wù(勿)”,“fiào(覅)”,“béng(甭)”,“fǒu(否)”,and“miǎn(免)”as well as phrases with one of them.This paper is intended to explore the application of negation in Chinese in two ways:(1)People express positive meanings with negative words or phrases;(2)People express negative meanings with positive words or phrases.The linguistic data employed in this paper come from real life,microblogs,variety shows,short videos,and some hǎobùexpressions from three of China’s four classic novels.展开更多
Objective: The aim of this study was to investigate Cathepsin-D (Cath-D) expression in different location and its relationship with prognosis in the axillary lymph nodes negative (ANN) breast cancer patients. Methods:...Objective: The aim of this study was to investigate Cathepsin-D (Cath-D) expression in different location and its relationship with prognosis in the axillary lymph nodes negative (ANN) breast cancer patients. Methods: Cath-D expression in 192 cases of breast carcinoma were examined by immunohistochemistry. Depending on different parts of expression, three evaluating methods were used, compared and analysed. Results: The positive rate of Cath-D expression in ANN breast cancer with poor prognosis group and axillary nodes positive (ANP) group were significantly higher than that in ANN breast cancer with good prognosis group (x 2=23.20,P<0.01), while there was no significant difference between ANP group and ANN with poor prognosis group (x 2=0.19,P>0.05). Cath-D expression in stromal cells had no statistical difference among the three groups (x}2=1.56,P>0.05). When the Cath-D expression in cancer and stromal cells were counted into the positive rate, it was near the same (u 1=0.47,u 2=1.41,P>0.05). Conclusion: These results suggest that Cath-D expression is one of the powerful prognostic markers in ANN breast cancer. It’s a reliable, practical, and convenient method to observe and evaluate Cath-D expression in cancer cells.展开更多
The complete open reading frame of OsPINla was amplified through reverse transcriptase- polymerase chain reaction (RT-PCR) based on the sequence deposited in GenBank to explore the relationship between the auxin eff...The complete open reading frame of OsPINla was amplified through reverse transcriptase- polymerase chain reaction (RT-PCR) based on the sequence deposited in GenBank to explore the relationship between the auxin efflux protein OsPINla and the negative phototropism of rice roots. Sequencing results showed that the GC content of OsPINla was 65.49%. The fusion expression vector pCAMBIA-1301-OsP/N1a::GFP containing the OsPINla gene and a coding green fluorescent protein (gfp) gene was constructed. The fusion vector was transferred into onion epidermal cells by Agrobacterium tumefaciens transformation. The transient expression of OsPINla-GFP was mainly located in the nucleus and cell membrane. Moreover, the transgenic plants were obtained by Agrobacterium-mediated genetic transformation. Molecular detection performed by using PCR and β-glucuronidase staining showed that the target construct was integrated into the genome of rice. The negative phototropic curvatures of the transgenic rice roots were higher than those of the wild type. Similarly, the expression levels of OsPINla in the transgenic plants were considerably higher than those in the wild-type plants. These results suggest that OsPINla is crucial in the negative phototropic curvature of rice roots.展开更多
Triple negative breast cancer(TNBC) is an aggressive subtype of breast cancer that currently lacks effective biomarkers and therapeutic targets required to investigate the diagnosis and treatment of TNBC. Here we perf...Triple negative breast cancer(TNBC) is an aggressive subtype of breast cancer that currently lacks effective biomarkers and therapeutic targets required to investigate the diagnosis and treatment of TNBC. Here we performed a comprehensive differential analysis of 165 TNBC samples by integrating RNA-seq data of breast tumor tissues and adjacent normal tissues from both our cohort and The Cancer Genome Atlas(TCGA). Pathway enrichment analysis was conducted to evaluate the biological function of TNBC-specific expressed genes. Further multivariate Cox proportional hazard regression was performed to evaluate the effect of these genes on TNBC prognosis. In this report, we identified a total of 148 TNBC-specific expressed genes that were primarily enriched in mammary gland morphogenesis and hormone levels related pathways, suggesting that mammary gland morphogenesis might play a unique role in TNBC patients differing from other breast cancer types. Further survival analysis revealed that nine genes(FSIP1, ADCY5, FSD1, HMSD, CMTM5, AFF3, CYP2 A7, ATP1 A2,and C11 orf86) were significantly associated with the prognosis of TNBC patients, while three of them(ADCY5,CYP2 A7, and ATP1 A2) were involved in the hormone-related pathways. These findings indicated the vital role of the hormone-related genes in TNBC tumorigenesis and may provide some independent prognostic markers as well as novel therapeutic targets for TNBC.展开更多
The purpose of this study was to investigate the efficacy and safety of chidamide combined with paclitaxel liposome in the treatment of advanced HER-2-negative breast cancer.First,41 patients with advanced HER-2-negat...The purpose of this study was to investigate the efficacy and safety of chidamide combined with paclitaxel liposome in the treatment of advanced HER-2-negative breast cancer.First,41 patients with advanced HER-2-negative breast cancer who had received two chemotherapy regimens from May 2017 to November 2017 were randomly selected to receive chidamide combined with paclitaxel liposome treatment(observation group,n=20)or placebo combined with paclitaxel liposome treatment(control group,n=21).The treatment scheme of the observation group was oral chidamide 30mg twice a week for 2 months.In addition,on day 1,the patients were given paclitaxel liposome orally and intravenously administered with 175 mg/m2 for 1 cycle for 21 days and 3 cycles of chemotherapy.The treatment scheme of the control group was oral placebo 30 mg twice a week for 2 months.In addition,the method of paclitaxel liposome administration was the same as the observation group.The response rate(RR),disease control rate(DCR),and progression-free survival(PFS)were compared between the two groups.The results showed that all the 41 patients could be evaluated.In the observation group,CR5,PR7,SD5 and PD3 were obtained.RR was 60.0%and DCR was 85.0%.In the control group,CR3,PR3,SD5 and PD10 were obtained.RR was 28.6%and DCR was 52.4%.RR and DCR in the observation group were better than those in the control group,and the difference was statistically significant(P<0.05).The median PFS of the observation group was 5.2 months,longer than that of the control group(3.1 months,P<0.05).The main adverse reactions in the two groups were gastrointestinal reactions and bone marrow suppression,with grade 1~2 as the main ones.The incidence of leukopenia,thrombocytopenia and nausea and vomiting in the observation group was higher than that in the control group(P<0.05).Therefore,the chidamide combined with paclitaxel liposome is effective in the treatment of advanced HER-2-negative breast cancer,and the adverse reactions can be tolerated.展开更多
Negative worded(NW)items used in psychological instruments have been studied with the bifactor model to investigate whether the NW items form a secondary factor due to negative wording orthogonal to the measured laten...Negative worded(NW)items used in psychological instruments have been studied with the bifactor model to investigate whether the NW items form a secondary factor due to negative wording orthogonal to the measured latent construct,a validation procedure which checks whether NW items form a source of construct irrelevant variance(CIV)and hence constitute a validity threat.In the context of educational testing,however,no such validation attempts have been made.In this study,we studied the psychometric impact of NW items in an English proficiency reading comprehension test using a modeling approach similar to the bifactor model,namely the three-parameter logistic cross-classified testlet response theory(3PL CCTRT)model,to account for both guessing and possible local item dependence due to passage effect in the data set.The findings indicate that modeling the NW items with a separate factor leads to noticeable improvement in model fit,and the factor variance is marginal but nonzero.However,item and ability parameter estimates are highly similar between the 3PL CCTRT model and other models that do not model the NW items.It is concluded that the NW items introduce CIV into the data,but its magnitude is too small to change item and person ability parameter estimates to an extent of practical significance.展开更多
Opportunities for business cooperation have been increased dramatically in the new environment, and under such circumstance, language usage in business communication places a significant role, particularly in oral bus...Opportunities for business cooperation have been increased dramatically in the new environment, and under such circumstance, language usage in business communication places a significant role, particularly in oral business language. To promote harmonious conversations, certain factors and manners of communication like paying attention to the cultural differences, the proper use of humor, mutual understanding, and the avoidance of misunderstanding ambiguity should be taken into consideration to avoid an unsuccessful result.展开更多
It is observed by in situ stain that LDH (1 5) ...nNAD + can probably enter the nucleopore and can be bound bound specifically with the genes that encode them. During the in vitro expression, the dilution of heart nuc...It is observed by in situ stain that LDH (1 5) ...nNAD + can probably enter the nucleopore and can be bound bound specifically with the genes that encode them. During the in vitro expression, the dilution of heart nuclear DNA fragments could enhance the expression activity of LDH/DNA and the amount of expressed LDH (1 5) is in proportion to the amount of dissociable LDH (1 5) on the LDH/DNA. With the integration of 14C Leu to the proteins, it is also observed that the addition of LDH (1 5) ...nNAD + can suppress the in vitro expression activity of LDH/DNA. AFM observation shows that the regulation sequence at the both ends of active genes may be bound with such active factors as proteins encoded by the genes which probably is the main molecular switch of gene expression and regulation we have been always searching for. Our work shows the prospective application of the combination of AFM and isotope labeling in the research of biological reaction.展开更多
This paper makes a tentative study of the politeness strategies stressed in the choice of address forms in Chinese,American and Japanese culture under the guidance of Politeness Principle by Brown and Levinson.Through...This paper makes a tentative study of the politeness strategies stressed in the choice of address forms in Chinese,American and Japanese culture under the guidance of Politeness Principle by Brown and Levinson.Through a comprehensive analysis,It is concluded that the major function of English address forms is to indicate solidarity and realize positive politeness,In contrast,both Chinese and Japanese address forms emphasize deference and help achieve negative politeness;It is the author's hope that a better understanding of these addressing rules in different cultures will benefit effective use of these languages and help avoid miscommunication in intercultural communication.展开更多
Erythropoietin (EPO) genomic gene was cloned and its expression vector pOP13/EPO was constructed. CHOK12 cell was transfected by this vector using lipofectin method. A stable expression cell strain C10 cell with the...Erythropoietin (EPO) genomic gene was cloned and its expression vector pOP13/EPO was constructed. CHOK12 cell was transfected by this vector using lipofectin method. A stable expression cell strain C10 cell with the EPO production at 160IU/d in 10\+6 cells were obtained at 400 μg/mL G418. Based on the C10 cell, another vector pHY/dhfr (dihydrofolate reductase) that carries a dhfr gene and a selecting marker of hygromycin B resistant gene was transferred to this cell. Several cell clones were obtained at 200 μg/mL hygromycin B. These cell clones that can express both EPO gene and exogenous dhfr gene were selected under the progressively increased concentration to 1 μmol methotrexate(MTX). Some high EPO expression cell clones were obtained, the highest expression was 2 400 IU/d in 10\+6 cells, 15 times higher than that without MTX pressure. Then, a method of EPO high expression by using undhfr negative cell was primarily established. EPO bioactivity was found by using TF1 cell.展开更多
文摘Negation is a ubiquitous phenomenon in all languages.In Chinese,there are a good number of such negative expressions as“fēi(非)”,“bu(不)”,“méi(没)”,“mò(莫)”,“bié(别)”,“wèi(未)”,“wú(无)”,“wù(勿)”,“fiào(覅)”,“béng(甭)”,“fǒu(否)”,and“miǎn(免)”as well as phrases with one of them.This paper is intended to explore the application of negation in Chinese in two ways:(1)People express positive meanings with negative words or phrases;(2)People express negative meanings with positive words or phrases.The linguistic data employed in this paper come from real life,microblogs,variety shows,short videos,and some hǎobùexpressions from three of China’s four classic novels.
文摘Objective: The aim of this study was to investigate Cathepsin-D (Cath-D) expression in different location and its relationship with prognosis in the axillary lymph nodes negative (ANN) breast cancer patients. Methods: Cath-D expression in 192 cases of breast carcinoma were examined by immunohistochemistry. Depending on different parts of expression, three evaluating methods were used, compared and analysed. Results: The positive rate of Cath-D expression in ANN breast cancer with poor prognosis group and axillary nodes positive (ANP) group were significantly higher than that in ANN breast cancer with good prognosis group (x 2=23.20,P<0.01), while there was no significant difference between ANP group and ANN with poor prognosis group (x 2=0.19,P>0.05). Cath-D expression in stromal cells had no statistical difference among the three groups (x}2=1.56,P>0.05). When the Cath-D expression in cancer and stromal cells were counted into the positive rate, it was near the same (u 1=0.47,u 2=1.41,P>0.05). Conclusion: These results suggest that Cath-D expression is one of the powerful prognostic markers in ANN breast cancer. It’s a reliable, practical, and convenient method to observe and evaluate Cath-D expression in cancer cells.
基金supported by the grants from the National Natural Science Foundations of China(Grant Nos.31071353 and 31100197)the Anhui Provincial Natural Science Fund of Youth,China(Grant No.1308085QC50)the Fund of Provincial Excellent Young Talents in Universities and Colleges,China(Grant No.2012SQRL057)
文摘The complete open reading frame of OsPINla was amplified through reverse transcriptase- polymerase chain reaction (RT-PCR) based on the sequence deposited in GenBank to explore the relationship between the auxin efflux protein OsPINla and the negative phototropism of rice roots. Sequencing results showed that the GC content of OsPINla was 65.49%. The fusion expression vector pCAMBIA-1301-OsP/N1a::GFP containing the OsPINla gene and a coding green fluorescent protein (gfp) gene was constructed. The fusion vector was transferred into onion epidermal cells by Agrobacterium tumefaciens transformation. The transient expression of OsPINla-GFP was mainly located in the nucleus and cell membrane. Moreover, the transgenic plants were obtained by Agrobacterium-mediated genetic transformation. Molecular detection performed by using PCR and β-glucuronidase staining showed that the target construct was integrated into the genome of rice. The negative phototropic curvatures of the transgenic rice roots were higher than those of the wild type. Similarly, the expression levels of OsPINla in the transgenic plants were considerably higher than those in the wild-type plants. These results suggest that OsPINla is crucial in the negative phototropic curvature of rice roots.
基金supported by the Nanjing Medical Science and Technique Development Foundation(ZKX17041)the Natural Science Foundation of Jiangsu Province(BK20161120)+2 种基金the Maternal and child health research project of Jiangsu Province(F201628)the Priority Academic Program Development of Jiangsu Higher Education Institutions(Public Health and Preventive Medicine)Top-notch Academic Programs Project of Jiangsu Higher Education Institutions(PPZY2015A067)。
文摘Triple negative breast cancer(TNBC) is an aggressive subtype of breast cancer that currently lacks effective biomarkers and therapeutic targets required to investigate the diagnosis and treatment of TNBC. Here we performed a comprehensive differential analysis of 165 TNBC samples by integrating RNA-seq data of breast tumor tissues and adjacent normal tissues from both our cohort and The Cancer Genome Atlas(TCGA). Pathway enrichment analysis was conducted to evaluate the biological function of TNBC-specific expressed genes. Further multivariate Cox proportional hazard regression was performed to evaluate the effect of these genes on TNBC prognosis. In this report, we identified a total of 148 TNBC-specific expressed genes that were primarily enriched in mammary gland morphogenesis and hormone levels related pathways, suggesting that mammary gland morphogenesis might play a unique role in TNBC patients differing from other breast cancer types. Further survival analysis revealed that nine genes(FSIP1, ADCY5, FSD1, HMSD, CMTM5, AFF3, CYP2 A7, ATP1 A2,and C11 orf86) were significantly associated with the prognosis of TNBC patients, while three of them(ADCY5,CYP2 A7, and ATP1 A2) were involved in the hormone-related pathways. These findings indicated the vital role of the hormone-related genes in TNBC tumorigenesis and may provide some independent prognostic markers as well as novel therapeutic targets for TNBC.
文摘The purpose of this study was to investigate the efficacy and safety of chidamide combined with paclitaxel liposome in the treatment of advanced HER-2-negative breast cancer.First,41 patients with advanced HER-2-negative breast cancer who had received two chemotherapy regimens from May 2017 to November 2017 were randomly selected to receive chidamide combined with paclitaxel liposome treatment(observation group,n=20)or placebo combined with paclitaxel liposome treatment(control group,n=21).The treatment scheme of the observation group was oral chidamide 30mg twice a week for 2 months.In addition,on day 1,the patients were given paclitaxel liposome orally and intravenously administered with 175 mg/m2 for 1 cycle for 21 days and 3 cycles of chemotherapy.The treatment scheme of the control group was oral placebo 30 mg twice a week for 2 months.In addition,the method of paclitaxel liposome administration was the same as the observation group.The response rate(RR),disease control rate(DCR),and progression-free survival(PFS)were compared between the two groups.The results showed that all the 41 patients could be evaluated.In the observation group,CR5,PR7,SD5 and PD3 were obtained.RR was 60.0%and DCR was 85.0%.In the control group,CR3,PR3,SD5 and PD10 were obtained.RR was 28.6%and DCR was 52.4%.RR and DCR in the observation group were better than those in the control group,and the difference was statistically significant(P<0.05).The median PFS of the observation group was 5.2 months,longer than that of the control group(3.1 months,P<0.05).The main adverse reactions in the two groups were gastrointestinal reactions and bone marrow suppression,with grade 1~2 as the main ones.The incidence of leukopenia,thrombocytopenia and nausea and vomiting in the observation group was higher than that in the control group(P<0.05).Therefore,the chidamide combined with paclitaxel liposome is effective in the treatment of advanced HER-2-negative breast cancer,and the adverse reactions can be tolerated.
文摘Negative worded(NW)items used in psychological instruments have been studied with the bifactor model to investigate whether the NW items form a secondary factor due to negative wording orthogonal to the measured latent construct,a validation procedure which checks whether NW items form a source of construct irrelevant variance(CIV)and hence constitute a validity threat.In the context of educational testing,however,no such validation attempts have been made.In this study,we studied the psychometric impact of NW items in an English proficiency reading comprehension test using a modeling approach similar to the bifactor model,namely the three-parameter logistic cross-classified testlet response theory(3PL CCTRT)model,to account for both guessing and possible local item dependence due to passage effect in the data set.The findings indicate that modeling the NW items with a separate factor leads to noticeable improvement in model fit,and the factor variance is marginal but nonzero.However,item and ability parameter estimates are highly similar between the 3PL CCTRT model and other models that do not model the NW items.It is concluded that the NW items introduce CIV into the data,but its magnitude is too small to change item and person ability parameter estimates to an extent of practical significance.
文摘Opportunities for business cooperation have been increased dramatically in the new environment, and under such circumstance, language usage in business communication places a significant role, particularly in oral business language. To promote harmonious conversations, certain factors and manners of communication like paying attention to the cultural differences, the proper use of humor, mutual understanding, and the avoidance of misunderstanding ambiguity should be taken into consideration to avoid an unsuccessful result.
文摘It is observed by in situ stain that LDH (1 5) ...nNAD + can probably enter the nucleopore and can be bound bound specifically with the genes that encode them. During the in vitro expression, the dilution of heart nuclear DNA fragments could enhance the expression activity of LDH/DNA and the amount of expressed LDH (1 5) is in proportion to the amount of dissociable LDH (1 5) on the LDH/DNA. With the integration of 14C Leu to the proteins, it is also observed that the addition of LDH (1 5) ...nNAD + can suppress the in vitro expression activity of LDH/DNA. AFM observation shows that the regulation sequence at the both ends of active genes may be bound with such active factors as proteins encoded by the genes which probably is the main molecular switch of gene expression and regulation we have been always searching for. Our work shows the prospective application of the combination of AFM and isotope labeling in the research of biological reaction.
文摘This paper makes a tentative study of the politeness strategies stressed in the choice of address forms in Chinese,American and Japanese culture under the guidance of Politeness Principle by Brown and Levinson.Through a comprehensive analysis,It is concluded that the major function of English address forms is to indicate solidarity and realize positive politeness,In contrast,both Chinese and Japanese address forms emphasize deference and help achieve negative politeness;It is the author's hope that a better understanding of these addressing rules in different cultures will benefit effective use of these languages and help avoid miscommunication in intercultural communication.
文摘Erythropoietin (EPO) genomic gene was cloned and its expression vector pOP13/EPO was constructed. CHOK12 cell was transfected by this vector using lipofectin method. A stable expression cell strain C10 cell with the EPO production at 160IU/d in 10\+6 cells were obtained at 400 μg/mL G418. Based on the C10 cell, another vector pHY/dhfr (dihydrofolate reductase) that carries a dhfr gene and a selecting marker of hygromycin B resistant gene was transferred to this cell. Several cell clones were obtained at 200 μg/mL hygromycin B. These cell clones that can express both EPO gene and exogenous dhfr gene were selected under the progressively increased concentration to 1 μmol methotrexate(MTX). Some high EPO expression cell clones were obtained, the highest expression was 2 400 IU/d in 10\+6 cells, 15 times higher than that without MTX pressure. Then, a method of EPO high expression by using undhfr negative cell was primarily established. EPO bioactivity was found by using TF1 cell.