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【Objective】 To investigate the role of microRNA-218 (miR-218) in regulating prostate cancer (PCa) cell stemness and epithelial-mesenchymal transition (EMT). 【Methods】 PCa cell line stably overexpressing miR-218 was constructed with lentivirus transfection. The expression of miR-218 was detected with real-time fluorescence quantitative polymerase chain reaction (q-PCR). The migration ability was detected with Transwell assay. The expression of EMT related proteins were detected with Western blot. The properties of cells were determined with colony formation and tumor sphere formation assays. 【Results】 The results of q-PCR showed that the mRNA level of miR-218 was significantly lower in PCa cell lines LNCaP and C4-2 than in BPH-1. Transwell assay showed that miR-218 inhibited the migration of PCa cells. Western blot showed that the expression of EMT related proteins were inhibited by miR-218. Colony formation and tumor sphere formation assays showed that overexpression of miR-218 significantly inhibited the properties of cells. 【Conclusion】 The expression of miR-218 is downregulated in PCa cell lines. miR-28 can inhibit cell migration, EMT and cancer stem cell properties.
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Objective@#To investigate hepatitis C virus(HCV)genotyping and the serum HCV-RNA concentration in patients infected with different HCV genotypes and to provide information for evaluation of disease condition and anti-viral treatment efficacy.@*Methods@#A total of 60 anti-HCV positive serum samples were collected before antiviral treatment. RT-PCR was performed for the 5′ non-cording region and was followed by nucleotide sequencing for HCV genotyping. Meanwhile, serum HCV-RNA concentration was detected by quantitative PCR. SPSS21.0 and Graphpad Prism 5.0 software were used for data analysis. Analysis of variance (ANOVA) was used for comparison among multi-groups and the t-test was used for comparison between two groups.@*Results@#The frequencies of HCV genotypes 1b, 3a, 1a and 2a were 48.3% (29/60), 23.3% (14/60), 16.7% (10/60) and 10% (6/60), respectively. And, there is one subtype 2c was detected in this study. The mean serum viral concentration with standard deviation of HCV in genotype 1a, 1b, 2a, and 3 a were 5.46±1.19, 6.22±0.78, 5.47±0.65, and 5.38±0.98 log10 (IU/ml) respectively.@*Conclusions@#The infection rate of HCV genotype 1 was significantly higher than that of genotype 2 and 3 (P<0.01). The statistical analysis showed the serum HCV-RNA concentration in patients with subtype 1b was significantly higher than that of the subtype group 1 a, 2 a, and 3 a (P<0.05). The study of the relationship between HCV genotypes and the serum HCV-RNA concentration may contribute to anti-viral treatment prescription for hepatitis C patients.
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Objective nvestigate the propofol combined with fentanyl anesthesia in orthopedic manual reduction applications.MethodsAugust 2015 to December 2016 in our hospital treated 120 cases of acute long bone closed fracture and ankle, shoulder dislocation and other patients, efficient analysis anesthesia, surgery time, patient recovery time, propofol is added volume and total volume, and detection 3min, 1min, 3min, 5min and waking SpO2, HR, MAP, RR values.Two groups of patients after treatment, were given nursing intervention, such as routine diet guidance, nutrition support, health education.after administration before it is administered.Resultsanesthetic effect experimental group total efficiency is higher, the difference was statistically significant (P<0.05);after simultaneous administration of all patients 1min, 3min, 5min signs were lower than prodrug 3min signs, the difference statistically significant (P<0.05), after clear signs of its former administration 3min with no significant difference;experimental group recovery time, propofol bolus of propofol than with total control were lower, the difference was statistically significant (P<0.05);and the two groups were similar to the operation time, the difference was not statistically significant.ConclusionIn summary, propofol combined with fentanyl anesthesia for patients to take the treatment of orthopedic manual reduction obviously worthy of clinical use.
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Objective:To investigate the relationship between DNA methyltransferase (DNMT1) and EZH2 gene expression levels and their clinical significance in patients with acute myeloid leukemia (AML). Methods:The mRNA expression levels of DNMT1 and EZH2 in 50 AML cases and 30 healthy controls were quantified through real-time PCR. The relationship among DNA methyltransferase (DNMT1) and EZH2, clinicopathological factors, and prognosis was analyzed. Results:The mRNA expression of DNMT1 in the AML cases (2.72 ± 0.73) was significantly higher than that in the healthy controls (0.89 ± 0.27) (P<0.01). The mRNA expression of EZH2 in the AML cases (4.39±1.06) was also significantly higher than that in the healthy controls (1.87±0.33) (P<0.01). The expression of DNMT1 was positive-ly associated with that of EZH2 (r=0.51, P=0.002). The expression of DNMT1 was also associated with PB%and WBC≥50 × 109/L (P<0.05). The overall survival of the group with a high-mRNA-expressing DNMT1 was 15 months (95%CI=9-19 months). This period was significantly shorter than that of the group with low-mRNA-expressing DNMT1 (32 months, 95%CI=27-40 months;P=0.006). Conclu-sion:DNMT1 and EZH2 expression levels were downregulated. These levels were associated with poor AML prognosis. The expression of DNMT1 was also positively associated with that of EZH2.
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Objective To evaluate the clinical efficacy and toxicity of rituximab combined with CHOP (R-CHOP) in the treatment of relapsed or refractory diffuse large B cell lymphoma (DLBCL).Methods 30 patients were enrolled.All patients,pathologically confirmed to be CD20 positive DLBCL (all in stages Ⅲ-Ⅳ ), were relapsed or refractory after received 2-6 cycles of chemotherapy. Then all of them received R-CHOP schedule for 4 to 6 cycles, each cycle was 21 days. Clinical data before and after R-CHOP were collected.A retrospective analysis of the R-CHOP therapy,either compared to the literature or self-control was performed to evaluate the efficacy and toxicity. Results All the 30 patients were evaluable, induding 15 cases were complete remission (CR), 10 cases were partial remission (PR), 3 cases were stable disease (SD),and 2 cases were progressed disease (PD).The CR rate was 50.0 ％ (15/30),the total response rate (RR) was 83.3 ％ (25/30).All patients were well tolerated to the therapy.Only 3 cases were Ⅱ degree neutropenia,1 case was Ⅰ degree thrombocytopenia, and 2 cases suffered nausea and other mild gastrointestinal discomfort. Conclusions R-CHOP regimen could also achieve good response for relapsed or refractory DLBCL significantly.The common adverse effects of rituximab were mild.All the patients were well tolerated.
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Objective To explore the increasing risk of herpes zoster and its possible mechanisms for hematologic disorders treated with arsenic trioxide (ATO). Methods The cases were divided into study group (with ATO) and control group (without ATO). The incidence rate of herpes zoster was compared between the two groups, and then the average cycles of chemotherapy were compared between the patients complicated with herpes zoster or not in study group. Results The rate of herpes zoster was significantly higher in study group than that in control group (χ2 =4.492, P =0.034). The rates of herpes zoster were 23.95 % (23/96) in study group and 7.89 % (3/38) in control groups. Patients in study group with herpes zoster had received 7.60 cycles and those without herpes zoster 7.72 cycles of chemotherapy on average (Z=0.976, P=0.296).Conclusion The risk of herpes zoster complication in hematologic disorders was increased after ATO treatment which probably activated varicella-zoster virus.
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Objective To investigate the incidence of contrast-induced nephropathy (CIN) in the elderly undergoing coronary angiography and the correlated clinical risk factors.Methods 0.90% sodium chloride (1 ml · kg~-1 · h~-1 ) was administered 6 hours before and 12 hours after contrast media administration for 195 elderly patients,and the dose of sodium chloride was half when the patients were suffering from severe congestive heart failure.The levels of serum creatinine (Scr) and cystatin C were measured 3 days before and on the 2nd,5th day after the administration of contrast,respectively .Results(1) The incidence of CIN was 8.7% (17/195).The renal function of 11 cases recovered to baseline level 3 months after the use of contrast,2 cases had transformation to chronic renal failure but without undergoing maintenance hemodialysis,and 3 cases were dependent on maintenance hemodialysis,while 1 case developed multiple organ dysfunction until death.(2) There was no significant difference between pre-and post-contrast administration in the level of cystatin C (t=O.137,P= 0.891). But the concentration of Scr was reduced significantly on the 2nd day compared with the baseline (t=4.776,P = 0.000).Both the cystatin C and Scr recovered to the baseline on the 5th day.(3) There were no significant differences between the CIN and non-CIN group in gender,the dose of contrast,the baseline Scr,and the proportion of coronary heart disease.But there were significant differences in age,the baseline serum cystatin C,the proportions of diabetes mellitus,hypertension and congestive heart failure.(4) The clinical risk factors of CIN were the baseline Scr (OR = 1.039),the baseline serum cystatin C (OR=6.654),diabetes mellitus (OR=8.104) and congestive heart failure (OR=9.597) according to the analysis of logistic regression.ConclusionsWith the hydration and the use of low-osmolar nonionic contrast,it is safe to receive contrast examination for the elderly patients.The baseline serum levels of Scrand cystatin C,diabetes mellitus and congestive heart failure are the clinical risk factors of CIN.Compared with Scr,serum cystatin C is the more powerful predictor for the development of CIN.