目的:探讨胃癌术前CT强化率、灌注参数与血清肿瘤标志物含量、肿瘤病灶增殖分子表达的关系。方法:收集榆林市第二医院收治的胃癌患者68例作为观察组,根据肿瘤分期分为早中期胃癌组41例、晚期胃癌组27例;取同期在本院就诊被证实为胃良性...目的:探讨胃癌术前CT强化率、灌注参数与血清肿瘤标志物含量、肿瘤病灶增殖分子表达的关系。方法:收集榆林市第二医院收治的胃癌患者68例作为观察组,根据肿瘤分期分为早中期胃癌组41例、晚期胃癌组27例;取同期在本院就诊被证实为胃良性病变的患者50例作为胃良性病变组。采用CT扫描检测三组患者的CT强化率、灌注参数,采用酶联免疫吸附法(ELISA)检测血清肿瘤标志物含量,采用RT-PCR法检测病灶组织增殖基因mRNA表达量。结果:晚期胃癌组的CER、AF、BV、CL水平高于早中期胃癌组、胃良性病变组(P<0.05);晚期胃癌组的血清CA72-4、CA19-9、CA125、CEA含量高于早中期胃癌组、胃良性病变组(P<0.05);晚期胃癌组的组织CADM1、miRNA-34a、Cystatin M mRNA表达量低于早中期胃癌组、胃良性病变组,Survivin、I2PP2A mRNA表达量高于早中期胃癌组、胃良性病变组(P<0.05)。经Pearson检验发现,胃癌患者的CT强化率、灌注参数与血清肿瘤标志物含量、肿瘤病灶增殖分子表达量存在直接相关关系。结论:胃癌术前CT强化率、灌注参数与肿瘤恶性程度直接相关,可作为远期肿瘤诊断及恶性程度判断的可靠手段。展开更多
Background: Developing a novel, efficient biomarker for detecting malignant tumors is essential for the early diagnosis of cancers. Our aim was to assess the diagnostic value of a potential plasma tumor marker, thiore...Background: Developing a novel, efficient biomarker for detecting malignant tumors is essential for the early diagnosis of cancers. Our aim was to assess the diagnostic value of a potential plasma tumor marker, thioredoxin reductase (TR), which is expressed in many types of malignant tumor, for the non-invasive detection of cancers. Methods: The plasma activities of TR were measured in 1513 patients with common clinical diseases, 59 patients with benign tumors, and 154 patients with cancers and 586 healthy controls. The area under the ROC curve (AUC) of TR and logistic regression results of different groups were compared by sensitivity, specificity and Youden’s index. Diagnostic cut-offs and clinical reference intervals were established via ROC curve analysis. Results: The logistic regression indicated that TR activity can discriminate between cancers and benign tumors or other common diseases very well (p < 0.0001), with an area under the curve from the receiver-operator characteristics between 0.91 and 0.96. The positive critical value was 2.51 and the cancer critical value was 9.90. The diagnostic gray zone (2.51 - 9.90) may be associated with benign tumors and some common clinical diseases. Conclusions: As a novel potential marker of malignant tumors with quantitative evaluation of proliferation, TR activity detection has an excellent diagnostic potential for early-stage malignant tumors. Impact: The convenient, economical, relatively non-invasive, and reproducible detection method of TR activity makes it suitable for routine clinical practice.展开更多
Objective:To study the relationship of preoperative gastric cancer CT enhancement ratio and perfusion parameters with serum tumor marker levels and proliferation molecule expression in tumor lesions.Methods:A total of...Objective:To study the relationship of preoperative gastric cancer CT enhancement ratio and perfusion parameters with serum tumor marker levels and proliferation molecule expression in tumor lesions.Methods:A total of 68 patients with gastric cancer treated in the Second Hospital of Yulin City between May 2012 and May 2016 were chosen as observation group and sub-divided into early and middle gastric cancer group (n=41) and advanced gastric cancer group (n=27) according to the tumor stage;50 patients diagnosed with benign gastric diseases in our hospital during the same period were selected as benign gastric lesion group. CT enhancement rate and perfusion parameters of three groups of patients were detected by CT scan, serum tumor marker levels were evacuated by enzyme-linked immunosorbent assay (ELISA), and the proliferation gene mRNA expression levels were detected by RT-PCR method.Results: CER, AF, BV and CL levels of advanced gastric cancer group were higher than those of early and middle gastric cancer group and benign gastric lesion group;serum CA72-4, CA19-9, CA125 and CEA contents of advanced gastric cancer group were higher than those of early and middle gastric cancer group and benign gastric lesion group;CADM1, miRNA-34a and Cystatin M mRNA expression in tissue of advanced gastric cancer group were lower than those of early and middle gastric cancer group and benign gastric lesion group while Survivin and I2PP2A mRNA expression were higher than those of early and middle gastric cancer group and benign gastric lesion group. The Pearson test showed that the CT enhancement rate and perfusion parameters in patients with gastric cancer are directly correlated with the serum tumor marker levels and the proliferation gene expression in tumor lesions.Conclusion: Preoperative gastric cancer CT enhancement rate and perfusion parameters are directly related to the tumor malignancy, and can be used as a reliable method for the long-term tumor diagnosis and malignancy judgment.展开更多
Objective:To study the correlation of peripheral blood NK cell content with tumor marker content and proliferation molecule expression in patients with non-small cell lung cancer (NSCLC).Methods: A total of 80 patient...Objective:To study the correlation of peripheral blood NK cell content with tumor marker content and proliferation molecule expression in patients with non-small cell lung cancer (NSCLC).Methods: A total of 80 patients who were diagnosed with NSCLC in our hospital between June 2014 and October 2016 were selected as the NSCLC group of the research, and 96 healthy volunteers who received physical examination in our hospital during the same period were selected as the control group of the research. The peripheral blood NK cell content and serum tumor marker contents of two groups of subjects were determined, and the proliferation molecule expression levels in lung cancer focus tissue and focus tissue adjacent to carcinoma of NSCLC group were determined.Results:Peripheral blood NK cell content of NSCLC group was significantly lower than that of control group;serum CEA, CA125, Cyfra21-1 and HE4 contents were significantly higher than those of control group, and serum CEA, CA125, Cyfra21-1 and HE4 contents of NSCLC patients with high NK cell content were significantly lower than those of NSCLC patients with low NK cell content;c-myc, c-FLIP, Livin, Moesin and k-ras protein expression in lung cancer focus tissue were significantly higher than those in focus tissue adjacent to carcinoma, and c-myc, c-FLIP, Livin, Moesin and k-ras protein expression in lung cancer focus tissue with high NK cell content were significantly lower than those in lung cancer focus tissue with low NK cell content.Conclusion: Peripheral blood NK cell content significantly reduces in patients with NSCLC and is associated with the cancer cell proliferation activity.展开更多
文摘目的:探讨胃癌术前CT强化率、灌注参数与血清肿瘤标志物含量、肿瘤病灶增殖分子表达的关系。方法:收集榆林市第二医院收治的胃癌患者68例作为观察组,根据肿瘤分期分为早中期胃癌组41例、晚期胃癌组27例;取同期在本院就诊被证实为胃良性病变的患者50例作为胃良性病变组。采用CT扫描检测三组患者的CT强化率、灌注参数,采用酶联免疫吸附法(ELISA)检测血清肿瘤标志物含量,采用RT-PCR法检测病灶组织增殖基因mRNA表达量。结果:晚期胃癌组的CER、AF、BV、CL水平高于早中期胃癌组、胃良性病变组(P<0.05);晚期胃癌组的血清CA72-4、CA19-9、CA125、CEA含量高于早中期胃癌组、胃良性病变组(P<0.05);晚期胃癌组的组织CADM1、miRNA-34a、Cystatin M mRNA表达量低于早中期胃癌组、胃良性病变组,Survivin、I2PP2A mRNA表达量高于早中期胃癌组、胃良性病变组(P<0.05)。经Pearson检验发现,胃癌患者的CT强化率、灌注参数与血清肿瘤标志物含量、肿瘤病灶增殖分子表达量存在直接相关关系。结论:胃癌术前CT强化率、灌注参数与肿瘤恶性程度直接相关,可作为远期肿瘤诊断及恶性程度判断的可靠手段。
文摘Background: Developing a novel, efficient biomarker for detecting malignant tumors is essential for the early diagnosis of cancers. Our aim was to assess the diagnostic value of a potential plasma tumor marker, thioredoxin reductase (TR), which is expressed in many types of malignant tumor, for the non-invasive detection of cancers. Methods: The plasma activities of TR were measured in 1513 patients with common clinical diseases, 59 patients with benign tumors, and 154 patients with cancers and 586 healthy controls. The area under the ROC curve (AUC) of TR and logistic regression results of different groups were compared by sensitivity, specificity and Youden’s index. Diagnostic cut-offs and clinical reference intervals were established via ROC curve analysis. Results: The logistic regression indicated that TR activity can discriminate between cancers and benign tumors or other common diseases very well (p < 0.0001), with an area under the curve from the receiver-operator characteristics between 0.91 and 0.96. The positive critical value was 2.51 and the cancer critical value was 9.90. The diagnostic gray zone (2.51 - 9.90) may be associated with benign tumors and some common clinical diseases. Conclusions: As a novel potential marker of malignant tumors with quantitative evaluation of proliferation, TR activity detection has an excellent diagnostic potential for early-stage malignant tumors. Impact: The convenient, economical, relatively non-invasive, and reproducible detection method of TR activity makes it suitable for routine clinical practice.
文摘Objective:To study the relationship of preoperative gastric cancer CT enhancement ratio and perfusion parameters with serum tumor marker levels and proliferation molecule expression in tumor lesions.Methods:A total of 68 patients with gastric cancer treated in the Second Hospital of Yulin City between May 2012 and May 2016 were chosen as observation group and sub-divided into early and middle gastric cancer group (n=41) and advanced gastric cancer group (n=27) according to the tumor stage;50 patients diagnosed with benign gastric diseases in our hospital during the same period were selected as benign gastric lesion group. CT enhancement rate and perfusion parameters of three groups of patients were detected by CT scan, serum tumor marker levels were evacuated by enzyme-linked immunosorbent assay (ELISA), and the proliferation gene mRNA expression levels were detected by RT-PCR method.Results: CER, AF, BV and CL levels of advanced gastric cancer group were higher than those of early and middle gastric cancer group and benign gastric lesion group;serum CA72-4, CA19-9, CA125 and CEA contents of advanced gastric cancer group were higher than those of early and middle gastric cancer group and benign gastric lesion group;CADM1, miRNA-34a and Cystatin M mRNA expression in tissue of advanced gastric cancer group were lower than those of early and middle gastric cancer group and benign gastric lesion group while Survivin and I2PP2A mRNA expression were higher than those of early and middle gastric cancer group and benign gastric lesion group. The Pearson test showed that the CT enhancement rate and perfusion parameters in patients with gastric cancer are directly correlated with the serum tumor marker levels and the proliferation gene expression in tumor lesions.Conclusion: Preoperative gastric cancer CT enhancement rate and perfusion parameters are directly related to the tumor malignancy, and can be used as a reliable method for the long-term tumor diagnosis and malignancy judgment.
文摘Objective:To study the correlation of peripheral blood NK cell content with tumor marker content and proliferation molecule expression in patients with non-small cell lung cancer (NSCLC).Methods: A total of 80 patients who were diagnosed with NSCLC in our hospital between June 2014 and October 2016 were selected as the NSCLC group of the research, and 96 healthy volunteers who received physical examination in our hospital during the same period were selected as the control group of the research. The peripheral blood NK cell content and serum tumor marker contents of two groups of subjects were determined, and the proliferation molecule expression levels in lung cancer focus tissue and focus tissue adjacent to carcinoma of NSCLC group were determined.Results:Peripheral blood NK cell content of NSCLC group was significantly lower than that of control group;serum CEA, CA125, Cyfra21-1 and HE4 contents were significantly higher than those of control group, and serum CEA, CA125, Cyfra21-1 and HE4 contents of NSCLC patients with high NK cell content were significantly lower than those of NSCLC patients with low NK cell content;c-myc, c-FLIP, Livin, Moesin and k-ras protein expression in lung cancer focus tissue were significantly higher than those in focus tissue adjacent to carcinoma, and c-myc, c-FLIP, Livin, Moesin and k-ras protein expression in lung cancer focus tissue with high NK cell content were significantly lower than those in lung cancer focus tissue with low NK cell content.Conclusion: Peripheral blood NK cell content significantly reduces in patients with NSCLC and is associated with the cancer cell proliferation activity.