Objective To evaluate the Diagnostic value of pulmonary tuberculosis to detecting the anti Mycobacterium tuberculosis antibody with serum samples by the mycobacterium tuberculosis protein Chip and the M.tuberculosis Antibody Colloidal Gold Diagnostic Kit.Methods Application of mycobacterium tuberculosis protein Chip and the M.tuberculosis Antibody Colloidal Gold Diagnostic Kit to detecting the anti Mycobacterium tuberculosis antibody with serum samples,These serum samples are from 110 cases of tuberculosis patients,60 cases of lung disease and 60 cases of healthy people.Results Mycobacterium tuberculosis protein chip sensitivity was 73.6％ (81/110),the specificity was 93.3％ (112/120),the diagnostic kit for detection of Mycobacterium tuberculosis antibody colloidal gold assay sensitivity was 64.5％ (71/110)and a specificity of 91.7％ (110/120),both the sensitivity and specificity compared to no significant difference (P ＞ 0.05).Conclusions The Tuberculosis protein chip and the M.tuberculosis Antibody Colloidal Gold Diagnostic Kit to detect serum Mycobacterium tuberculosis antibodies for diagnosis of TB has a high sensitivity and specificity.Both can be used for the auxiliary diagnosis of tuberculosis.

Objective To study the relationship between the washout speed in the contrast-enhanced ultrasound (CEUS) and the differentiation grading in pathology in patients with hypervascular hepatocellular carcinoma (HCC).Methods Totally 271 patients who underwent complete resection for hypervascular HCC from April 2009 to December 2014 at Nanchong Central Hospital were included in this study.CEUS examinations were perfomred in all patients 2-3 days before liver resection.A timer on the ultrasound screen displayed the time elapsed since the saline flush was used to determine time to washout.The washout rate were categorized into four levels based on enhancement in portal venous phase and delayed phase.The differentiation grade and the washout speed were compared using Kruskal-Wallis test.Results All 271 (100％) lesions were arterially enhanced with different washout rate.Washout speed 1 was found in 19 patients (7.0％),while speed 2 in 157 patients (57.9％),speed 3 in 65 (24.0％),and speed 4 in 30,respectively.The washout speed had a significant correlation with the differentiation (x2=179.8238,P ＜ 0.001).The faster washout speed,the higher differentiated.Washout speed 1 could distinghuish well-differentiated from the poor and moderately differentiated tumor.The sensitivity and specificity of preoperative washout speed 1 to identify well histologic grade were 98.0％ and 77.8％,the positive predictive value and negative predictive value were 96.0％ and 48.8％,and the positive likelihood ratio and negative likelihood ratiowere were 1.9 and 0.01.Washout speed 4 could distinghuish poor differentiated from well and moderately differentiated tumor The sensitivity and specificity of preoperative washout speed 4 to identify poor histologic grade were 24.3％ and 97.0％,the positive predictive value and the negative predictive value were 65.3％ and 61.3％,and the positive likelihood ratio and negative likelihood ratiowere were 3.2 and 0.7.Conculsions Washout speed can reflect the degree of differentiation roughly.Washout speed can effectively diagnose the well-differentiated HCC,but it is difficult for moderate and poor differentiated HCC.

This study is to investigate the influence and mechanism of action of asymmetrical dimethylarginine (ADMA) and the induced oxidative stress level on Alzheimer's disease (AD) incidence. ADMA concentration, nitric oxide, Abeta(40)/Abeta(42) ratio, inducible NO synthase (iNOS) activity and the concentrations of the induced free radicals including malondialdehyde (MDA), 3-nitrotyrosine (3-NT) and peroxynitrite (ONOO-) in the cerebrospinal fluid (CSF) from 34 neurologically normal controls and 37 AD patients were quantitatively determined and statistically compared. The results showed that the ADMA concentration significantly decreased in AD patients, and it showed negative correlation with the NO, iNOS activity, and showed positive correlation with MMSE score. ADMA concentration was negatively correlated with Abeta(40)/Abeta(42) ratio (P<0.01) with the observation that Abeta(40)/Abeta(42) ratio increased while ADMA level decreased in CSF in AD patients. The concentration levels of MDA, 3-NT and ROS significantly increased compared with the control with all the P values less than 0.05. These findings suggested that the ADMA disorder and the oxidative damage effect of the induced free radicals in CSF of AD patients are an important mechanism of AD incidence, and their joint regulation may provide new idea for the prevention and clinical treatment of AD.

Objective To evaluate the effect of endovascular embolotherapy treatment of carotid cavernous fistulas(CCF) via superior ophthalmic vein(SOV).Methods From June 1996 to June 2006,a total of 32 patients(16 female) with complex CCF underwent endovascular embolotherapy treatment through the SOV.All of the patients visited doctor due to ocular signs and symptoms.Nine patients with direct CCF had previously undergone partial arterial balloons embolotherapy.The other 23 patients were hard mater CCF,and of which 3 had underwent NBCA,embolotherapy with line section or PVA particle.In the angiographic suite all patients underwent general anesthesia,SOV was catheterized through the eyebrow incision.Cavernous sinus was packed with free coils,detachable coils or balloons and NBCA.Results Complete embolism of the arteriovenous shunt was achieved in 81.3%(26/32).A minor residual shunt(without cortical or ocular drainage) remained in 12.5%(4/32).Only SOV was occluded in 6.2%(2/32).All patients were clinical improvement without complications.No death and permanent disability occurred.No recurrence was observed during follow-up of mean time of 3.5 years in 22 outpatients.Conclusion The operative approach to SOV is straightforward and several kind of embolic materials can be used to embolize the cavernous sinus.Endovascular occlusion of cavernous sinus through the SOV is an efficient and safe treatment in CCF.

Objective To analyze the tend of hospital infection ,to understand the hospital infection control situation and pro‐vide a scientific basis for hospital infection prevention and control .Methods Investigation by the bed in combination with case in‐vestigation form 2012 to 2014 ,and the data of three consecutive years were analyzed by statistical analysis .Results In 2012 ,2013 and 2014 ,the hospital infection rates were 4 .15% ,3 .38% and 2 .76% respectively ,there was no statistically significant difference (χ2 =3 .908 ,P=0 .142) .Hospital infection site mainly respiratory tract(61 .33% ) ,followed by the digestive tract(16 .67% ) and u‐rinary tract(6 .67% ) ,different parts of the infection rate after statistical tests ,the difference had no statistically significant (χ2 =12 .167 ,P=0 .239);Different departments category incidence of hospital infection ,infection rate of internal system presented the declining trend ,in 2012-2014 by the statistical tests ,the difference had statistically significant(χ2 =8 .347 ,P=0 .015) .Conclusion Continuous observation of hospital infection rates helps to understanding the trend of hospital infection ,finding focus of infection , improving the method of hospital infection management .

The nuclear transcription factor nuclear factor erythroid 2-related factor 2 (NRF2) plays a crucial role in maintaining cellular redox homeostasis. The aberrant NRF2 signaling confers enhanced antioxidant capacity, which is linked to tumor progression and therapeutic resistance. The current study investigates the biological effects and molecular mechanism of tribbles homolog 3 (TRIB3), a stress-induced protein, in regulating cell survival and apoptosis in lung cancer. This study first performed the RNA sequencing data analysis with 576 lung adenocarcinoma patients from the cancer genome atlas (TCGA) database. The NRF2- antioxidant response element (ARE) signature was enriched in patients with high TRIB3 expression. Dual-luciferase reporter assay and real-time quantitative polymerase chain reaction (PCR) were used to confirm the effect of TRIB3 on the kelch-like ECH-associated protein-1 (KEAP1)-NRF2 pathway. Abrogation of TRIB3 impaired NRF2 transcriptional activity and reduced the expression of its target genes. Moreover, TRIB3 enhanced NRF2 stability via blocking KEAP1-NRF2 interaction. TRIB3-depletion promoted reactive oxygen species (ROS) production, restrained cell proliferation, and enhanced carboplatin-induced apoptosis. In addition, NRF2 overexpression recovered the tumor inhibition effect of TRIB3-depletion. Consistently, TRIB3 failed to modulate apoptosis in NRF2 depletion cells. In summary, this study shows that TRIB3 inhibits the KEAP1-NRF2 interaction and upregulates the transcriptional activity of NRF2, thereby promoting lung cancer cell proliferation and reducing the sensitivity to chemotherapy. Targeting the TRIB3-NRF2 signal axis may become a new strategy for ROS homeostasis and lung cancer treatment.

At present, there is no cure for acquired immune deficiency syndrome (AIDS) due to HIV-1 latent reservoirs. Therefore, it urgently requires novel HIV-1 latency-regulating agents with high potency, low toxicity and favorable drug-like properties to achieve a functional cure for AIDS. Herein, we reviewed the advances in HIV-1 latency-regulating agents since 2019, including the drug discovery strategies, bioactivities, and mechanisms of these compounds. It is of great guiding significance in the development of latency-regulating agents with clinical value.

Antigen Rv2628 of Mycobacterium tuberculosis is associated with latent tuberculosis infection. In this study, Rv2628 was prokaryotic expressed and purified, its immunological characteristics was evaluated with macrophage cell line RAW264.7 and BALB/c mice. The results show that Rv2628 was mainly expressed in form of inclusion body confirmed by SDS-PAGE, and could react with rabbit anti-H37Rv polyclonal antibody detected by Western blotting assay, indicating that the protein had an effective immunoreactivity. The interactions between Rv2628 and macrophage cell line RAW264.7 confirmed that it could effectively induce cells to produce pro-inflammatory cytokines, the relative expression level of IL-6 mRNA was higher than the control group in 1-12 h. BALB/c mice were subcutaneously immunized with Rv2628 protein, the production of IFN-gamma and IL-4 in the spleen cells was determined by Sandwich ELISA, in the Rv2628 immunized group, the level of IFN-gamma was significantly higher than that of IL-4 (P < 0.000 1). It indicated the protein induced Th1-tendency immune responses. At the same time, Rv2628(11-30) peptide used as coating antigen, the murine serum antibody titer detected by indirect-ELISA was 1:1 600, which demonstrated that Rv2628 could also induce humoral immune responses. In summary, Rv2628 could induce specific pro-inflammatory cytokines, affectively induce strongly Th1-tendency immune response and humoral response, it could be a potential target for developing subunit vaccine against TB. In addition, it laid foundation for probing the cross-talk between M. tb and host.
Animals ; Antibodies, Bacterial ; blood ; Antigens, Bacterial ; immunology ; Cell Line ; Electrophoresis, Polyacrylamide Gel ; Interferon-gamma ; immunology ; Interleukin-4 ; immunology ; Interleukin-6 ; immunology ; Macrophages ; immunology ; Mice ; Mice, Inbred BALB C ; Mycobacterium tuberculosis ; Th1 Cells ; immunology ; Tuberculosis ; immunology

Objective To investigate the clinical value of color Doppler flow imaging (CDFI) for evaluating transplant renal artery stenosis (TRAS).Methods Clinical and ultrasonographic data of 216 kidney transplant recipients were collected by follow-up monitoring from September 2015 to July 2016.CDFI indexes included the peak systolic velocity (PSV) in the renal artery and resistant index (RI).Renal artery PSV and RI were measured.All suspected TRAS patients accepted transplant renal artery angiography (DSA).Results Fourteen patients with suspected TRAS accepted DSA,of which 12 patients were confirmed.The diagnostic accuracy of CDFI was 85.7％.When the POST-PSV ratio＞ 1 0,the sensitivity and specificity of diagnosis of TRAS were 91 ％ and 95 ％,respectively.CDFI indexes remarkably changed after the TRAS patients had undergone renal artery dilatation or stent implantation.PSV of the main renal artery and the POST-PSV ratio decreased significantly,and the PSV of interlobar arteries increased.Conclusions CDFI is a reliable first choice for screening transplant renal artery stenosis.The POST-PSV ratio has relatively higher sensitivity and specificity in the diagnosis of TRAS.

Objective To study the changes of somatostatin(SOM) in plasma and cerebrospinal fluid (CSF) of children with convulsive diseases.Methods Sixty-seven children with convulsive diseases were studied as following:obtaining the samples of plasma in the 1st and 7th day after being in hospital,and the samples of CSF in the 1st after being in hospital.We investigated the changes of SOM in plasma and CSF with radioimmunoassay(RIA).Results 1.Convulsive group:the concentration of SOM in plasma in the 7th day(29.47?9.40 ng/L) was significant lower than that in the 1st day(39.23?11.00 ng/L)(t=21.530 P0.05).The concentration of SOM in plasma in the 1st day in control group was(19.58?6.04) ng/L.There were significant differences in convulsive group and encephalitis group without convulsion, control group(t= 6.847,7.921 P