Objective To explore the impact of SARS-CoV-2-positive donors on the prognosis of heart transplant recipients. Methods The Medline, EMbase, CENTRAL, CNKI, Wanfang Data, VIP and China Biology Medicine from inception to May 2023 were searched by computer for studies about impact of SARS-CoV-2-positive donors on the prognosis of heart transplant recipients. The data were extracted from all the relevant literatures, and the quality of the data was assessed using the Newcastle-Ottawa Scale (NOS). All statistical analyses were conducted by the Stata 11.0 software. Results A total of 10 studies (NOS score ranging from 5 to 9 points) involving 643 patients were enrolled. The pooled results demonstrated that the pooled mortality of heart transplant recipients from SARS-CoV-2-positive donors was 4% (95%CI 2% to 5%). And the incidence of composite outcome, regarding graft failure, rejection and death as poor prognosis, was 7% (95%CI 5% to 9%). Besides, compared with recipients from SARS-CoV-2-negative donors, the pooled odds ratio (OR) value of death of SARS-CoV-2-positive donors was 0.68 (95%CI 0.38 to 1.22, Z=1.28, P=0.200). The pooled OR value of rejection rate was 0.41 (95%CI 0.27 to 0.64, Z=3.97, P<0.005). For the composite outcome, the pooled OR value was 0.50 (95%CI 0.37 to 0.69, Z=4.30, P<0.005). In addition, there was no statistical difference in the length of hospital stay between heart transplant recipients from SARS-CoV-2-positive donors and negative donors (SMD=–0.03, 95%CI –0.22 to 0.15, Z=0.36, P=0.720). Conclusion The application of heart from SARS-CoV-2-positive donor for transplantation is safe and feasible. However, further prospective studies with longer follow-up are still needed to verify its impact on long-term outcomes.

Objective To observe the value of 18F-FDG PET/CT semi-quantitative parameters for predicting spread through air spaces(STAS)of clinical stage Ⅰa—Ⅲa lung adenocarcinoma.Methods Data of 85 patients with clinical stage Ⅰa—Ⅲ a lung adenocarcinoma who underwent preoperative 18F-FDG PET/CT were retrospectively analyzed.The patients were divided into positive group(n=23)or negative group(n=62)according to whether pathology showed STAS or not.Clinical and PET/CT data were compared between groups,and logistic analysis was performed to explore the efficacy of each parameter for predicting STAS.Results Significant differences of gender,carcinoma embryonic antigen,clinical stage,pathological grade,micropapillary growth and proportion were found between groups(all P＜0.05).The maximum,the mean,the peak standard uptake value(SUVmax,SUVmean,SUVpeak),as well as the maximum,the mean and the peak standard uptake value normalized by lean body mass(SULmax,SULmean,SULpeak),also the total lesion glycolysis(TLG)in positive group were all significantly higher than those in negative group(all P＜0.05).Patients'gender,proportion of micropapillary growth,SUVmax and SULmax were all independent risk factors of STAS of clinical stage Ⅰa—Ⅲa lung adenocarcinoma.The area under the curve(AUC)of the above parameters for predicting STAS was 0.666,0.912,0.839 and 0.842,respectively,and of the combination was 0.957.Conclusion 18 F-FDG PET/CT semi-quantitative parameters SUVmax and SULmax were helpful for predicting STAS of clinical stage Ⅰa—Ⅲ a lung adenocarcinoma,and further combination of gender and proportion of micropapillary growth could improve diagnostic efficacy.

Objective To explore the value of combined detection of cerebrospinal fluid lactate (LA), interleukin-27 (IL-27) and interferon-γ (IFN-γ) in diagnosing bacterial meningitis after neurosurgical operation in Intensive Care Unit (ICU). Methods A total of 54 patients with bacterial meningitis after neurosurgical operation in ICU were collected as disease group, and 62 patients without bacterial meningitis after operation were collected as control group. Fully automated biochemical analyzer and enzyme-linked immunosorbent assay (ELISA) were used to detect the expression levels of LA, IL-27 and IFN-γ in cerebrospinal fluid; the Logistic regression model was used to analyze the related factors affecting bacterial meningitis after operation; the receiver operating characteristic (ROC) curve was used to analyze the diagnostic values of LA, IL-27 and IFN-γ in cerebrospinal fluid for bacterial meningitis after operation. Results The glucose level in the disease group was significantly lower than that in the control group, while the white blood cell count and protein level were significantly higher than those in the control group (P < 0.01). The expression levels of LA and IL-27 in the cerebrospinal fluid in the disease group were significantly higher than those in the control group, while IFN-γ level in the cerebrospinal fluid was significantly lower than that in the control group (P < 0.01). Logistic regression analysis showed that LA, IL-27 and IFN-γ in the cerebrospinal fluid were the influencing factors of bacterial meningitis after neurosurgical operation in ICU (P < 0.05). The area under the curve (AUC) of LA combined with IL-27 and IFN-γ in cerebrospinal fluid in the diagnosis of bacterial meningitis after neurosurgical operation in ICU was 0.955, which was better than that of single diagnosis based on LA (AUC=0.806, Z=4.029, P < 0.001), IL-27 (AUC=0.858, Z=2.513, P=0.012) and IFN-γ (AUC=0.815, Z=3.680, P < 0.001) in cerebrospinal fluid, and the sensitivity and specificity of the combined diagnosis were 87.04% and 93.55% respectively. Conclusion The expression levels of LA and IL-27 in the cerebrospinal fluid of patients with bacterial meningitis after neurosurgical operation in ICU increase significantly, while the expression level of IFN-γ in the cerebrospinal fluid is significantly lower. The combined detection of three indicators has higher diagnostic value for postoperative bacterial meningitis compared with single detection.

Objective To investigate expression levels and clinical significance of annexin A2 and S100 calcium binding protein A10 (S100A10) in cerebrospinal fluid of patients with secondary intracranial infection after craniocerebral surgery. Methods A total of 120 patients with secondary intracranial infection after craniocerebral surgery were selected as test group, while 120 patients with no infection after craniocerebral surgery in the same period were selected as control group. The levels of Annexin A2 and S100A10 in cerebrospinal fluid were detected by enzyme-linked immunosorbent assay(ELISA). Pearson correlation analysis was applied to analyze the correlations of Annexin A2 and S100A10 with clinical indicators. Logistic regression analysis was applied to analyze the influencing factors of secondary intracranial infection after craniocerebral surgery. Receiver operator characteristic (ROC) curve was applied to analyze the predictive value of Annexin A2 and S100A10 levels for the occurrence of secondary intracranial infection after craniocerebral surgery. Results The proportions of diabetes and cerebrospinal fluid leakages, blood l actate dehydrogenase (LDH), cerebrospinal fluid Annexin A2 and S100A10 levels in the test group were higher than those in the control group (P < 0.05). Annexin A2 in cerebrospinal fluid of patients with intracranial infection was positively correlated with S100A10, LDH, and S100A10 level was positively correlated with LDH (P < 0.05). Multivariate Logistic regression analysis showed that diabetes, cerebrospinal fluid leakage, blood LDH, Annexin A2 and S100A10 in cerebrospinal fluid were independent influencing factors for secondary intracranial infection after craniocerebral surgery (P < 0.05). ROC results showed that the AUCs of Annexin A2 level or S100A10 level alone in cerebrospinal fluid and their combined prediction for secondary intracranial infection after craniocerebral surgery was 0.788, 0.768 and 0.865 respectively, the AUC of combined prediction was larger than that of the single prediction (P < 0.05). Conclusion The expression levels of Annexin A2 and S100A10 are increased in cerebrospinal fluid of patients with secondary intracranial infection after craniocerebral surgery, which are independent influencing factors for secondary intracranial infection after craniocerebral surgery. Their combination has higher predictive value for secondary intracranial infection after craniocerebral surgery.

Objective To evaluate the efficacy and safety of etoposide capsule on metastatic breast cancer. Methods Forty-five advanced breast cancer patients treated with oral etoposide during Feb.1,2012 and Oct.31, 2016 in our department were enrolled in our study,with their general data,median number of treatment lines, treatment effect,common adverse reaction collected. Such indexes of objective response rate,rate of clinical benefit,disease control rate,progression free survival time were anlayzed. Results All patients received median five lines of etoposide capsule therapy. The objective response rate(ORR,CR + PR)was 6.7% and the clinical benefit rate(CBR,CR+PR+SD≥6.0 months)was 26.7% and the disease control rate(DCR,CR+PR+SD) was 68.9%.The median progression free survival time(PFS)was 4.0 months(95% CI:2.3~5.6).The main toxic-ities were grade 1-2 neutropenia(37.8%),grade 3-4 neutropenia(6.7%).Conclusion Etoposide capsule could be an option with efficacy and safety for metastatic breast cancer.

CD146 Antigen ; immunology ; Fibroblasts ; immunology ; pathology ; Humans ; Scleroderma, Systemic ; drug therapy ; immunology ; pathology

Objective To investigate the effect and potential mechanism of autophagy inhibitor chloroquine on the calcium oxalate crystals formation in rats.Methods From September 2016 to October 2016,Thirty healthy male SD rats were randomly divided into 3 groups:control group,model group and chloroquine intervention group.The method to establish calcium oxalate stone model was drinking water with 1％ ethylene and 1％ ammonium chloride freely.The rats of chloroquine intervention group were treat with chloroquine (40mg/kg · d) by intraperitoneal injection.Modeling was finished after 28 days.The amounts of renalcalcium oxalate crystals were detected by polarizing microscope.For all groups,the amounts of autophagosome were detected by transmission electron microscope.Twenty four hour urine compositions for stone risk factors were detected.The expressions of oxidative stress injury related molecular markers (SOD,MCP-1 and 8-OHdG) and the expressions of autophagy markers (LC3 and P62) were detected by immunohistochemistry.The RNA expressions of SLC26A6 in kidney were detected by Real-time PCR.Results Compared to the model group,the amounts of renal calcium oxalate crystals were significantly reduced in chloroquine intervention group (32.37 ± 5.14 vs.4.18 ± 0.25,P ＜ 0.05).Compared to the control group,the level of autophagy was increased in the model group.Compared to the model group,the level of autophagy was inhibited in the chloroquine intervention group.For control group,model group and chloroquine intervention group,the excretion of urinary oxalate were (3.1 ± 1.5) mmol,(22.5 ± 8.1) mmol,(2.8 ± 1.2) mmol,respectively;the excretion of urinary citrate were (63.4 ± 7.4) mmol,(45.9 ± 9.5)mmol,(15.6 ± 8.2) mmol,respectively.Compared to the control group,the amounts of urinary oxalate weresignificantly elevated in model group (P ＜ 0.05),but citrate were significantly reduced in the chloroquineintervention group(P ＜ 0.05).For control group,model group and chloroquine intervention group,theexpressions of SOD were 42.24 ±4.16,19.21 ± 2.25,39.08 3.53,respectively;the expressions of MCP-1 were 4.02 0.51,8.45 ± 0.55,5.52 ± 0.34,respectively;the expressions of 8-OHdG were 7.16 ± 0.54,11.21 ± 1.12,8.67 ±0.34,respectively;the RNA expressions of SLC26A6 were 0.35 ±0.07,1.02 ±0.17,0.70 ± 0.06,respectively.Compared to the control group,the expressions of SOD were significantly reduced in the model group,but the expressions of MCP-1,8-OHdG and SLC26A6 were significantly elevated(P ＜0.05).Compared to the model group,the expressions of SOD were significantly elevated chloroquine intervention group (P ＜ 0.05),but the expressions of MCP-1,8-OHdG and SLC26A6 were significantly elevated(P ＜ 0.05).Conclusions The autophagy inhibitor chloroquine could inhibit the formation of calcium oxalate crystals induced by ethylene in rat kidney via inhibit the renal autophagy level and expressions of the SLC26A6,reducing the renal oxidative stress injury and urinary oxalate excretion.

Objective To investigate the ability and underlying mechanism of hepatitis B virus X protein (HBx)regulationofPolo-likekinase 1 (Plk1)expression.Methods The human HCC cell line HepG2 was transfected (transiently and stably) with an HBx plasmid expression vector (pCMV-HA-HBx) or empty plasmid vector (control),with and without expression plasmids with the Plk1 promoter.Effects on Plk1 expression were assessed by western blotting.Functional effects on the Plk1 promoter were assessed by luciferase reporter assay.Effects on the mRNA level of Plk1 in S phase HepG2 cells were assessed by quantitative real-time reverse transcriptase polymerase chain reaction.After blocking protein synthesis by treatment with cycloheximide (CHX),the turnover rate of Plk1 was assessed by western blotting.Lastly,the effect of HBx on cell cycle was assessed by flow cytometry.Results HBx did not increase the protein expression of Plk1 in non-synchronized HepG2 cells,but did significantly up-regulate the Plkt protein level in the synchronized S phase cells (P =0.026 and P =0.003,respectively).Ectopic expression of HBx did not increase the mRNA level of Plk1 in HepG2 cells,but did inhibit the degradation of Plk1,as evidenced by an increased half-life of Plk1 protein (from 30 to 90 minutes).The HBx-expressing HepG2 cells showed more trequent entry into the S or G2/M phase than the control cells (31.65％ vs.24.56％ or 9.43％ vs.4.47％,respectively) and less in the G0/G1 phase (decrease from 70.97％ to 58.92％ for the HBx-expressing HepG2 cells).Conclusion HBx is able to up-regulate the expression of Plk1 in HepG2 cells by a mechanism involving stabilization of the Plkl protein primarily in the S phase of the cell cycl.

Objective To investigate the Video?Electroencephalography(VEEG)characteristics and abnormal rate among healthy elderly. Meth?ods According to the age,120 healthy elders were divided into groups A,B,and C. Group A has 57 subjects,aged 60?69 years old;group B has 42 people,aged 70?79 years;group C has 21 individuals,aged≥80 years. Chi square and Rank sum test were used to calculate abnormal rate of VEEG. Additionally,characteristics of alpha、slow wave and Iconic sleep wave were analyzed. Result The total abnormal rate of VEEG was 42.5%, and it was particularly high(76.2%)among elderly over 80s. Frequency,amplitude,reactivity of Alpha wave and alpha index decreased as age in?creased. Theta slow wave increased as age increased,abnormal frontal area theta showed an increase among elderly over 80 s. Each sleep cycle iconic sleep wave was gradually decreased in the elderly. No statistical difference was found about sleep spindles and vertex sharp among different groups . Positive occipital sharp transients of sleep(POSTS)decreased as age increased. There was no POSTS among elderly over 80 s. Conclusion Our re?sults showed that abnormal rate is increased in the elderly,while reactivity variation,slow alpha frequency,alpha amplitude,alpha index are de?creased. In addition,the slow waves in frontal area is increased,. sleep cycles becomes less distinct,and the typical wave are decreased.

CD146 is a newly identified endothelial biomarker that has been implicated in angiogenesis. Though in vitro angiogenic function of CD146 has been extensively reported, in vivo evidence is still lacking. To address this issue, we generated endothelial-specific CD146 knockout (CD146(EC-KO)) mice using the Tg(Tek-cre) system. Surprisingly, these mice did not exhibit any apparent morphological defects in the development of normal retinal vasculature. To evaluate the role of CD146 in pathological angiogenesis, a xenograft tumor model was used. We found that both tumor volume and vascular density were significantly lower in CD146(EC-KO) mice when compared to WT littermates. Additionally, the ability for sprouting, migration and tube formation in response to VEGF treatment was impaired in endothelial cells (ECs) of CD146(EC-KO) mice. Mechanistic studies further confirmed that VEGF-induced VEGFR-2 phosphorylation and AKT/p38 MAPKs/NF-κB activation were inhibited in these CD146-null ECs, which might present the underlying cause for the observed inhibition of tumor angiogenesis in CD146(EC-KO) mice. These results suggest that CD146 plays a redundant role in physiological angiogenic processes, but becomes essential during pathological angiogenesis as observed in tumorigenesis.
Animals ; CD146 Antigen ; genetics ; metabolism ; Cells, Cultured ; Endothelial Cells ; cytology ; metabolism ; Female ; Fibrosarcoma ; metabolism ; pathology ; Male ; Melanoma, Experimental ; metabolism ; pathology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; NF-kappa B ; metabolism ; Neovascularization, Physiologic ; drug effects ; Phosphorylation ; drug effects ; Proto-Oncogene Proteins c-akt ; metabolism ; Retinal Vein ; growth & development ; pathology ; Signal Transduction ; drug effects ; Transplantation, Homologous ; Vascular Endothelial Growth Factor A ; pharmacology ; Vascular Endothelial Growth Factor Receptor-2 ; metabolism