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Objective:To investigate the differential diagnostic value of intravoxel incoherent motion diffusion-weighted imaging (IVIM-DWI) combined with serum indicators for prostate cancer.Methods:We recruited 97 patients with prostate diseases who received treatment in Zhuji People's Hospital from March 2018 to September 2020 for this study. Patients with prostate cancer were included in the study group ( n = 46) and patients with benign prostatic hyperplasia in the control group ( n = 51). All patients were subject to IVIM-DWI and serum early prostate cancer antigen-2 level detection alone or in combination. The sensitivity, specificity, accuracy, and diagnostic efficacy of IVIM-DWI and serum early prostate cancer antigen-2 level detection alone or in combination were compared between the two groups. Results:D and f values in the study group were (0.50 ± 0.14) × 10 -3 mm 2/s and (0.35 ± 0.11), respectively, which were significantly lower than those in the control group [(0.71 ± 0.12) × 10 -3 mm 2/s, (0.59 ± 0.08), t = 7.95, 12.37, both P < 0.001]. D* value and serum early prostate cancer antigen-2 level in the study group were (6.24 ± 1.90) × 10 -3 mm 2/s and (62.5 ± 18.3) μg/L, which were significantly higher than those in the control group [(4.08 ± 1.34) × 10 -3 mm 2/s, (17.3 ± 6.8) μg/L, t = -6.52, -16.43, both P < 0.001]. The overall detection rate, sensitivity, specificity, and accuracy of IVIM-DWI combined with serum early prostate cancer antigen-2 level detection for prostate cancer were 53.6% (52/97), 97.8% (45/46), 74.5% (38/51), and 85.6% (83/97), respectively. A receiver operating characteristic curve analysis showed that the sensitivity of IVIM-DWI combined with serum indicators in the diagnosis of prostate cancer and the area under the curve were greater than those produced by IVIM-DWI and serum early prostate cancer antigen-2 level detection alone (both P < 0.05). Conclusion:IVIM-DWI combined with serum early prostate cancer antigen-2 level detection has a higher sensitivity in the diagnosis of prostate cancer than monotherapy. The combined therapy provides a new perspective for the differential diagnosis of prostate cancer and has a certain clinical value.
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Objective To investigate the expression of two long non-coding RNAs ( lncRNAs ) during HIV-1 infection, which were nuclear-enriched autosomal transcript 1 (NEAT1) and metastasis asso-ciated lung adenocarcinoma transcript 1 ( MALAT1 ) , and their relationships with disease progression . Methods Fifty-nine patients with HIV-1 infection and 21 healthy subjects were recruited in this study , of which 31 patients were highly active antiretroviral therapy ( HAART)-na?ve and 28 patients received HAART for more than one year with undetectable viral loads .Total RNAs were extracted from PBMC and plasma samples, respectively.The levels of NEAT1 and MALAT1 were detected by quantitative real time polymer-ase chain reaction .Results The levels of NAET1 and MALAT1 in PBMC from HAART na?ve patients were 3 to 5 times higher than those in healthy subjects (P0.05).Conclusion This study suggested that NEAT 1 and MALAT1 might be involved in the disease progression in patients with HIV-1 in-fection.The level of NEAT1 in plasma could be used as a potential biomarker of HIV-1 infection.
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Objective To investigate the expression of blood CD +4 CD +25 Treg GITR,CD +4 T cell GITRL in children with asthma,and the role of them in asthmatic inflammation.Methods 50 cases of severe asthma were selected,and were controlled with thirty two healthy children.The venous blood was collected both in the period of acute episode and clinic remission.The mean fluorescence intensity of CD +4 CD +25 Treg GITR and CD +4 T cell GITRL was detected by flow cytometry.Results The expression of CD +4 CD +25 Treg GITR in the asthma acute period group was (24.2 ±8.2)MFI,which was significantly lower than (28.5 ±6.0)MFI in the control group(t =2.5,P 0.05).Moreover,the expression of CD +4 CD +25 Treg GITR in the asthma in remission group after treatment was (29.5 ±8.3)MFI,which was significantly higher than that in acute period group before treatment(t =-9.9,P 0.05).Furthermore,there was no significant correlation between levels of CD +4 CD +25 Treg GITR and CD +4 T cell GITRL.Conclusion The level of CD +4 CD +25 Treg GITR in acute period asthmatic patients was decreased,but it was increased in remission,but no changes of CD +4 T cell GITRL expression were observed.GITR/GITRL signal system might be involved in the asthmatic inflammation procession.
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Objective To study the clinical significance of peripheral blood PD-1 (CD279) and its ligands(CD274 and CD273)between patients with anti-HBe positive chronic hepatitis B (CHB) or anti-HBs positive group of normal glutamic acid alanine aminotransferase (ALT).Methods A total of 70 subjects of normal ALT,including 23 patients with anti-HBe positive,22 anti-HBs positive and 25 normal controls,were enrolled.The expression level of CD279,CD274 and CD273 in peripheral lymphocyte were detected by flow cytometry.Compare the group differences by multivariate analysis of variance.Results The expression level of CD279 in control group,anti-HBe positive group and anti-HBs positive group was (33.3±5.4)％,(48.0±9.1) ％,(42.8±9.0) ％,respectively.The expression level of CD274 in control group,anti-HBe positive group and anti-HBs positive group was (59.4 ±4.4) ％,(71.3± 10.3) ％ and (62.9 ± 10.2) ％,respectively.The expression level of CD273 in control group,anti-HBe positive group and anti-HBs positive group was (5.3±2.2)％,(15.6±5.3)％ and (5.1±1.0)％,respectively.The expression level of CD279 and CD274 decreased gradually from anti-HBe positive group to anti-HBs positive group and then to normal control group.Three dependent variables in the overall difference was statistically significant (Pillai trace =0.988,F=3090.105,P=0.000),η partial square was 0.458.The difference for CD273 expression level of anti-HBs positive group compared with control group was not statistically significant (P =0.082) ; for other groups pairwise comparisons were statistically significant(P＜0.01).Conclusion Monitoring the alteration of PD-1 and its ligands of the HBeAg seroconversion CHB patients and the anti-HBs positive population can better understand the changes in course of HBV infection,thereby improving the prognosis of patients.with HBV infection.
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Objective To explore the expression of costimulatory molecules of CD28 and CD152 for patients with chronic hepatitis B(CHB).Methods Flow cytometric analysis was applied to detect the expression level of CD28/CD152 on CD4+ or CD8+ T lymphocyte subpopulations.Results Compared with control group,the percentage of CD4+CD28+ and CD8+CD28+ increased significantly(P
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Objective To construct and evaluate the real-time fluorescence quantitative polymerase chain reaction for detecting IL-2R? mRNA in ankylosing spondylitis(AS) based on TaqMan technique.Methods A pair of primers and a TaqMan probe were designed by sequence in GenBank.Total RNA isolated from the fresh peripheral blood monocytes (PBMC) of homo sapiens was amplified by the real-time FQ-RT-PCR.The product was collected by agarose gel electrophoresis and sequencing analysis then ligated with pUCm-T.The recombined plasmid was transcribed to cRNA by T7 RNA polymerase in order to prepare serial standard materials.A new method was created to quantify IL-2R? mRNA in ideal condition.Sensitivity, reproducibility and efficiency were evaluated and used, combined with sIL-2R,for clinical application of AS.Results The linear range was (7~107) cells/ml.The intra-and-inter-assay coefficient variation was 8.4% and 9.6% respectively. Recombined plasmid contained the target fragment was specific and accurate by BLAST.Standard reference was constructed successfully.The RT-PCR product in AS with HLA-B27 positive groups was higher than that with HLA-B27 negative groups and health controls (P0.05).The sensitivity of IL-2R? mRNA was 96.7%.Conclusions Real Time FQ-RT-PCR of IL-2R? mRNA is constructed successfully.This is an easy,rapid,sensitive, accurate and reliable method for quantifing IL-2R? mRNA. There is highly statistical significance, compared with sIL-2R, on the expression of IL-2R? mRNA and inflammatory states between AS and control group and effective information for administration of patients.
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Objective To explore the effect of rmu-IFN-? on the change of T cell subsets and natural killer cells of pregnant mice infected with T.gondii.Methods Early pregnant mice infected with T.gondii were administered with different doses(1 U/g or 10 U/g)of rmu-IFN-? for three days before euthanasia.The numbers of splenic CD4+ and CD8+ T cells and natural killer cells were detected by flow cytometry.Results Compared with the infected mice that were not treated,the level of splenic CD4+ T cells in mice administered with two doses of rmu-IFN-? increased on the day 10,12,14 of gestation,while the level of CD8+ T cells decreased on the day 10,14 of gestation.The ratio of CD4+/CD8+ T cells increased significantly on the day 10,12,14 of gestation.Survival days of the two administered groups were longer than those of the infected group.Conclusion A proper dose of rmu-IFN-? can reverse the decline of the ratio of T cell subsets,improve the proliferation of NK cells,and so increase the level of peripheral cellular immunity of pregnant mice.