INTRODUCTIONInsulin-like growth factor Ⅱ(IGF-Ⅱ) is a mitogenic peptide of 74 kD and is mostly synthesized in fetal liver tissue .IGF-Ⅱ is believed to play an important role in fetal growth and development and is in...INTRODUCTIONInsulin-like growth factor Ⅱ(IGF-Ⅱ) is a mitogenic peptide of 74 kD and is mostly synthesized in fetal liver tissue .IGF-Ⅱ is believed to play an important role in fetal growth and development and is involved in cellular proliferation and differentiation[1-5]. Recently ,several researchers have reported increased expression of the IGF-Ⅱgene in human hepatocellular carcinoma (HCC) and adjacent non-cancerous liver tissues [6-10].展开更多
AIM:To evaluate the relationship between vascular endothelial growth factor(VEGF),p53,and the H-ras oncogene and different clinicopathological parameters in Egyptian patients with Schistosoma-associated transitional c...AIM:To evaluate the relationship between vascular endothelial growth factor(VEGF),p53,and the H-ras oncogene and different clinicopathological parameters in Egyptian patients with Schistosoma-associated transitional cell carcinoma of the bladder.METHODS:The study included 50 patients with transitional cell carcinoma for whom radical cystectomy and urinary diversions were carried out.VEGF and p53 protein expressions were evaluated with an immunohistochemical staining method,and H-ras oncogene mutations were analyzed with a polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP) technique.RESULTS:High grade tumors revealed higher p53 immunostaining than low grade tumors(P = 0.016).p53 and VEGF protein expressions,as well as H-ras oncogene mutations,had an insignificant impact on patient outcomes(P = 0.962,P = 0.791,and P = 967,respectively).Cancer extension to regional lymph nodes was associated with poor outcomes(P = 0.008).CONCLUSION:VEGF,p53 and the H-ras oncogene have no relation to patient survival and outcome in Schistosoma-associated transitional cell carcinoma.展开更多
Rapeseed(Brassica napus L.)is a global oil crop.Salinity stress impedes the growth of rapeseed,especially during seed germination.The key genes mediating salinity stress response during seed germination in B.napus rem...Rapeseed(Brassica napus L.)is a global oil crop.Salinity stress impedes the growth of rapeseed,especially during seed germination.The key genes mediating salinity stress response during seed germination in B.napus remain largely unknown.Here,we found that all six paralogs of C2H2 zinc finger transcription factor WIP DOMAIN PROTEIN 2(BnaWIP2)showed increased expression during the initial 12 hours of germination,and expression was further enhanced by salinity stress.Under NaCl treatment,knocking out all six BnaWIP2 paralogs in B.napus led to significantly reduced germination,while overexpression of BnaC06.WIP2 promoted germination.Transcriptomic analysis revealed that BnaC06.WIP2 downregulated a series of genes related to abscisic acid(ABA)biosynthesis and signaling,among which BnaA05.NCED3,BnaC04.ABI5-2,BnaA03.EM6,and BnaA05.EM6 were directly repressed by BnaC06.WIP2.Further analysis showed that in germinating seeds,BnaC06.WIP2 was induced by ABA and in turn restrained ABA production,indicating that BnaC06.WIP2 forms a negative feedback loop with ABA to promote seed germination under salinity stress in B.napus.Collectively,these results enhance our understanding of the novel function of BnaWIP2 and provide valuable genetic resources for breeding salinity-tolerant rapeseed varieties.展开更多
AIM: Age-related macular degeneration (AMD) is the leading cause of blindness in the developed world and complement factor H (CFH) polymorphism has been found to associate with the AMD. To investigate whether the Y402...AIM: Age-related macular degeneration (AMD) is the leading cause of blindness in the developed world and complement factor H (CFH) polymorphism has been found to associate with the AMD. To investigate whether the Y402H variant in CFH is associated with AMD in Chinese populations, a systematic review and meta-analysis were performed to estimate the magnitude of the gene effect and the possible mode of action. METHODS: A meta-analysis was performed using data available from ten case-control studies assessing association between the CFH Y402H polymorphism and AMD in Chinese populations involving 1538 AMD. Data extraction and study quality assessment were performed in duplicate. Summary odds ratios (ORs) and 95% confidence intervals (CIs) an allele contrast and genotype contrast were estimated usingfixed- effects models. The Q-statistic test was used to assess heterogeneity, and Funnel plot was used to evaluate publication bias. RESULTS: Seven of ten case-control studies were neovascular AMD, and few studies came from west and north of China. There was strong evidence for association between CFH and AMD in Chinese population, with those having risk allele C 2.35 times more likely to have AMD than subjects with T allele. Evidence of publication bias was not observed in our meta-analysis. CONCLUSION: This meta-analysis summarizes the strong evidence for an association between CFH and AMD in Chinese and indicates each C allele increasing the odds of AMD by 2.33-fold. But more evidences about the relation between CFH polymorphism and different type of Chinese AMD from various district were needed.展开更多
BACKGROUND Complement overactivation is a major driver of lupus nephritis(LN).Impaired interactions of C-reactive protein(CRP)with complement factor H(CFH)have been shown as a pathogenic mechanism that contributes to ...BACKGROUND Complement overactivation is a major driver of lupus nephritis(LN).Impaired interactions of C-reactive protein(CRP)with complement factor H(CFH)have been shown as a pathogenic mechanism that contributes to the overactivation of complement in LN.However,genetic variations of neither CRP nor CFH show consistent influences on the risk of LN.AIM To examine whether genetic variations of CRP and CFH in combination can improve the risk stratification in Chinese population.METHODS We genotyped six CRP single nucleotide polymorphisms(SNPs)(rs1205,rs3093062,rs2794521,rs1800947,rs3093077,and rs1130864)and three CFH SNPs(rs482934,rs1061170,and rs1061147)in 270 LN patients and 303 healthy subjects.RESULTS No linkage was found among CRP and CFH SNPs,indicating lack of genetic interactions between the two genes.Moreover,CRP and CFH SNPs,neither individually nor in combination,are associated with the risk or clinical manifestations of LN.Given the unambiguous pathogenic roles of the two genes.CONCLUSION These findings suggest that the biological effects of most genetic variations of CRP and CFH on their expressions or activities are not sufficient to influence the disease course of LN.展开更多
目的探讨血清半乳糖缺陷型IgA1(galactose-deficient IgA1,Gd-IgA1)、补体C4、补体因子H(complement factor H,CFH)和补体因子H相关蛋白(complement factor H related proteins,CFHRP)1、3、5在IgA肾病(IgA nephropathy,IgAN)中的诊断...目的探讨血清半乳糖缺陷型IgA1(galactose-deficient IgA1,Gd-IgA1)、补体C4、补体因子H(complement factor H,CFH)和补体因子H相关蛋白(complement factor H related proteins,CFHRP)1、3、5在IgA肾病(IgA nephropathy,IgAN)中的诊断价值。方法本研究为回顾性研究,收集2021年11月1日至2023年12月31日在雅安市人民医院行肾穿刺活检诊断为原发性IgAN的患者58例,同期其他肾小球疾病患者48例和健康志愿者20名作为对照,采用酶联免疫吸附分析法检测上述对象血清IgA、补体C4、Gd-IgA1、CFH、CFHRP1、3、5浓度并行组间比较,绘制受试者工作特征曲线评估血清Gd-IgA1、Gd-IgA1/CFH、CFHRP1/CFH、CFHRP5/CFH在IgAN中的诊断价值,筛选出受试者工作特征曲线的曲线下面积较大的指标Gd-IgA1、CFHRP1/CFH、CFHRP5/CFH,重点研究Gd-IgA1分别联合检测CFHRP1/CFH、CFHRP5/CFH对IgAN的诊断价值。结果原发性IgAN组患者血清IgA[1.568(1.344,1.705)g/L比1.177(0.618,1.893)g/L、0.538(0.433,0.732)g/L]、补体C4[0.547(0.494,0.643)g/L比0.396(0.312,0.515)g/L、0.289(0.186,0.356)g/L]、Gd-IgA1[0.003(0.002,0.004)g/L比0.002(0.001,0.003)g/L、0.0017(0.0010,0.0020)g/L]、CFHRP1[0.013(0.011,0.015)g/L比0.010(0.009,0.013)g/L、0.011(0.009,0.012)g/L]水平及Gd-IgA1/CFH[0.023(0.017,0.030)比0.012(0.009,0.021)mmol/L、0.005(0.004,0.007)mmol/L]、CFHRP1/CFH[0.115(0.091,0.161)比0.093(0.061,0.108)、0.038(0.028,0.043)]比值明显高于其他肾小球疾病组和健康组(P<0.05),血清CFH[0.000109(0.000089,0.000110)g/L比0.000285(0.000259,0.000347)g/L]浓度低于健康组(P<0.05);血清Gd-IgA1联合CFHRP1/CFH、CFHRP5/CFH诊断原发性IgAN的曲线下面积分别为0.946(95%CI:0.908~0.985)、0.926(95%CI:0.874~0.978),灵敏度分别为80%、90%,特异度分别为93.9%、86.3%。结论Gd-IgA1联合检测CFHRP1/CFH、CFHRP5/CFH对于诊断原发性IgAN具有较好价值,或可作为诊断IgAN的潜在无创性生物标志物。展开更多
Objective To investigate the effect of endotoxin and tumor necrosis factor(TNF)on hepatic function of rats.Method Prepare hepatic cell suspension by filling male SD rats’ livers with collagenaseⅠ,culture in DMEM med...Objective To investigate the effect of endotoxin and tumor necrosis factor(TNF)on hepatic function of rats.Method Prepare hepatic cell suspension by filling male SD rats’ livers with collagenaseⅠ,culture in DMEM medium,and add endotoxin and TNF in it.After 24hours detect GPT,GOT in supernatant fluid.Result The activity of GPT and GOT in superna tant fluid increased after adding en dotoxin and TNF .Conclusion The system of hepatic cell membrane c ould be damaged severely after acted by endotoxin and TNF.展开更多
Let M be a σ-finite von Neumann algebra equipped with a normal faithful state φ, and let A be a maximal subdiagonal algebra of M. We proved a Szeg type factorization theorem for the Haagerup noncommutative H;-spaces.
基金Project supported by the National Nature Science Foundation of China,No.39470774
文摘INTRODUCTIONInsulin-like growth factor Ⅱ(IGF-Ⅱ) is a mitogenic peptide of 74 kD and is mostly synthesized in fetal liver tissue .IGF-Ⅱ is believed to play an important role in fetal growth and development and is involved in cellular proliferation and differentiation[1-5]. Recently ,several researchers have reported increased expression of the IGF-Ⅱgene in human hepatocellular carcinoma (HCC) and adjacent non-cancerous liver tissues [6-10].
基金Supported by A grant from the research unit,Mansoura University
文摘AIM:To evaluate the relationship between vascular endothelial growth factor(VEGF),p53,and the H-ras oncogene and different clinicopathological parameters in Egyptian patients with Schistosoma-associated transitional cell carcinoma of the bladder.METHODS:The study included 50 patients with transitional cell carcinoma for whom radical cystectomy and urinary diversions were carried out.VEGF and p53 protein expressions were evaluated with an immunohistochemical staining method,and H-ras oncogene mutations were analyzed with a polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP) technique.RESULTS:High grade tumors revealed higher p53 immunostaining than low grade tumors(P = 0.016).p53 and VEGF protein expressions,as well as H-ras oncogene mutations,had an insignificant impact on patient outcomes(P = 0.962,P = 0.791,and P = 967,respectively).Cancer extension to regional lymph nodes was associated with poor outcomes(P = 0.008).CONCLUSION:VEGF,p53 and the H-ras oncogene have no relation to patient survival and outcome in Schistosoma-associated transitional cell carcinoma.
基金supported by the Biological Breeding-National Science and Technology Major Project(2022ZD04010)Scientific and Technological Innovation Team of Shaanxi Province(2024RS-CXTD-69)+1 种基金Key Research and Development Program of Shaanxi Province(2021LLRH-07)a grant from the Yang Ling Seed Industry Innovation Center(K3031122024).
文摘Rapeseed(Brassica napus L.)is a global oil crop.Salinity stress impedes the growth of rapeseed,especially during seed germination.The key genes mediating salinity stress response during seed germination in B.napus remain largely unknown.Here,we found that all six paralogs of C2H2 zinc finger transcription factor WIP DOMAIN PROTEIN 2(BnaWIP2)showed increased expression during the initial 12 hours of germination,and expression was further enhanced by salinity stress.Under NaCl treatment,knocking out all six BnaWIP2 paralogs in B.napus led to significantly reduced germination,while overexpression of BnaC06.WIP2 promoted germination.Transcriptomic analysis revealed that BnaC06.WIP2 downregulated a series of genes related to abscisic acid(ABA)biosynthesis and signaling,among which BnaA05.NCED3,BnaC04.ABI5-2,BnaA03.EM6,and BnaA05.EM6 were directly repressed by BnaC06.WIP2.Further analysis showed that in germinating seeds,BnaC06.WIP2 was induced by ABA and in turn restrained ABA production,indicating that BnaC06.WIP2 forms a negative feedback loop with ABA to promote seed germination under salinity stress in B.napus.Collectively,these results enhance our understanding of the novel function of BnaWIP2 and provide valuable genetic resources for breeding salinity-tolerant rapeseed varieties.
文摘AIM: Age-related macular degeneration (AMD) is the leading cause of blindness in the developed world and complement factor H (CFH) polymorphism has been found to associate with the AMD. To investigate whether the Y402H variant in CFH is associated with AMD in Chinese populations, a systematic review and meta-analysis were performed to estimate the magnitude of the gene effect and the possible mode of action. METHODS: A meta-analysis was performed using data available from ten case-control studies assessing association between the CFH Y402H polymorphism and AMD in Chinese populations involving 1538 AMD. Data extraction and study quality assessment were performed in duplicate. Summary odds ratios (ORs) and 95% confidence intervals (CIs) an allele contrast and genotype contrast were estimated usingfixed- effects models. The Q-statistic test was used to assess heterogeneity, and Funnel plot was used to evaluate publication bias. RESULTS: Seven of ten case-control studies were neovascular AMD, and few studies came from west and north of China. There was strong evidence for association between CFH and AMD in Chinese population, with those having risk allele C 2.35 times more likely to have AMD than subjects with T allele. Evidence of publication bias was not observed in our meta-analysis. CONCLUSION: This meta-analysis summarizes the strong evidence for an association between CFH and AMD in Chinese and indicates each C allele increasing the odds of AMD by 2.33-fold. But more evidences about the relation between CFH polymorphism and different type of Chinese AMD from various district were needed.
文摘BACKGROUND Complement overactivation is a major driver of lupus nephritis(LN).Impaired interactions of C-reactive protein(CRP)with complement factor H(CFH)have been shown as a pathogenic mechanism that contributes to the overactivation of complement in LN.However,genetic variations of neither CRP nor CFH show consistent influences on the risk of LN.AIM To examine whether genetic variations of CRP and CFH in combination can improve the risk stratification in Chinese population.METHODS We genotyped six CRP single nucleotide polymorphisms(SNPs)(rs1205,rs3093062,rs2794521,rs1800947,rs3093077,and rs1130864)and three CFH SNPs(rs482934,rs1061170,and rs1061147)in 270 LN patients and 303 healthy subjects.RESULTS No linkage was found among CRP and CFH SNPs,indicating lack of genetic interactions between the two genes.Moreover,CRP and CFH SNPs,neither individually nor in combination,are associated with the risk or clinical manifestations of LN.Given the unambiguous pathogenic roles of the two genes.CONCLUSION These findings suggest that the biological effects of most genetic variations of CRP and CFH on their expressions or activities are not sufficient to influence the disease course of LN.
文摘目的探讨血清半乳糖缺陷型IgA1(galactose-deficient IgA1,Gd-IgA1)、补体C4、补体因子H(complement factor H,CFH)和补体因子H相关蛋白(complement factor H related proteins,CFHRP)1、3、5在IgA肾病(IgA nephropathy,IgAN)中的诊断价值。方法本研究为回顾性研究,收集2021年11月1日至2023年12月31日在雅安市人民医院行肾穿刺活检诊断为原发性IgAN的患者58例,同期其他肾小球疾病患者48例和健康志愿者20名作为对照,采用酶联免疫吸附分析法检测上述对象血清IgA、补体C4、Gd-IgA1、CFH、CFHRP1、3、5浓度并行组间比较,绘制受试者工作特征曲线评估血清Gd-IgA1、Gd-IgA1/CFH、CFHRP1/CFH、CFHRP5/CFH在IgAN中的诊断价值,筛选出受试者工作特征曲线的曲线下面积较大的指标Gd-IgA1、CFHRP1/CFH、CFHRP5/CFH,重点研究Gd-IgA1分别联合检测CFHRP1/CFH、CFHRP5/CFH对IgAN的诊断价值。结果原发性IgAN组患者血清IgA[1.568(1.344,1.705)g/L比1.177(0.618,1.893)g/L、0.538(0.433,0.732)g/L]、补体C4[0.547(0.494,0.643)g/L比0.396(0.312,0.515)g/L、0.289(0.186,0.356)g/L]、Gd-IgA1[0.003(0.002,0.004)g/L比0.002(0.001,0.003)g/L、0.0017(0.0010,0.0020)g/L]、CFHRP1[0.013(0.011,0.015)g/L比0.010(0.009,0.013)g/L、0.011(0.009,0.012)g/L]水平及Gd-IgA1/CFH[0.023(0.017,0.030)比0.012(0.009,0.021)mmol/L、0.005(0.004,0.007)mmol/L]、CFHRP1/CFH[0.115(0.091,0.161)比0.093(0.061,0.108)、0.038(0.028,0.043)]比值明显高于其他肾小球疾病组和健康组(P<0.05),血清CFH[0.000109(0.000089,0.000110)g/L比0.000285(0.000259,0.000347)g/L]浓度低于健康组(P<0.05);血清Gd-IgA1联合CFHRP1/CFH、CFHRP5/CFH诊断原发性IgAN的曲线下面积分别为0.946(95%CI:0.908~0.985)、0.926(95%CI:0.874~0.978),灵敏度分别为80%、90%,特异度分别为93.9%、86.3%。结论Gd-IgA1联合检测CFHRP1/CFH、CFHRP5/CFH对于诊断原发性IgAN具有较好价值,或可作为诊断IgAN的潜在无创性生物标志物。
文摘Objective To investigate the effect of endotoxin and tumor necrosis factor(TNF)on hepatic function of rats.Method Prepare hepatic cell suspension by filling male SD rats’ livers with collagenaseⅠ,culture in DMEM medium,and add endotoxin and TNF in it.After 24hours detect GPT,GOT in supernatant fluid.Result The activity of GPT and GOT in superna tant fluid increased after adding en dotoxin and TNF .Conclusion The system of hepatic cell membrane c ould be damaged severely after acted by endotoxin and TNF.
文摘Let M be a σ-finite von Neumann algebra equipped with a normal faithful state φ, and let A be a maximal subdiagonal algebra of M. We proved a Szeg type factorization theorem for the Haagerup noncommutative H;-spaces.
