lncRNAs Functioned as ceRNA to Sponge miR-15a-5p Affects the Prognosis of Pancreatic Adenocarcinoma and Correlates With Tumor Immune Infiltration.

Pancreatic adenocarcinoma (PAAD) is one of the most common malignant tumors with poor prognosis worldwide. Mounting evidence suggests that the expression of lncRNAs and the infiltration of immune cells have prognostic value for patients with PAAD. We used Gene Expression Omnibus (GEO) database and identified six genes (COL1A2, ITGA2, ITGB6, LAMA3, LAMB3, and LAMC2) that could affect the survival rate of pancreatic adenocarcinoma patients. Based on a series of in silico analyses for reverse prediction of target genes associated with the prognosis of PAAD, a ceRNA network of mRNA (COL1A2, ITGA2, LAMA3, LAMB3, and LAMC2)-microRNA (miR-15a-5p)-long non-coding RNA (LINC00511, LINC01578, PVT1, and TNFRSF14-AS1) was constructed. We used the algorithm "CIBERSORT" to assess the proportion of immune cells and found three overall survival (OS)-associated immune cells (monocytes, M1 macrophages, and resting mast cell). Moreover, the OS-associated gene level was significantly positively associated with immune checkpoint expression and biomarkers of immune cells. In summary, our results clarified that ncRNA-mediated upregulation of OS-associated genes and tumor-infiltration immune cells (monocytes, M1 macrophages M1, and resting mast cell resting) correlated with poor prognosis in PAAD.

Electronic transfusion consent and blood delivering pattern improve the management of blood bank in China.

BACKGROUND: The aim of this study was to improve the blood transfusion treatment consent accuracy, simplify the verification process, prolong the temperature control time before the blood transfusion, and save the blood transportation labor cost. METHODS: We designed the blood transfusion consent electronic signing process, which can generate personalized the text content and can automatically check the filling accuracy. The signal can be transmitted to the blood transfusion management system (TMS) to relieving the blood distribution. For blood delivering pattern, we established the blood transport center, recruited full-time nurses and used temperature-controlled blood transfer boxes to deliver blood in batches on a regular basis. RESULTS: A quarterly data analysis of blood transfusion quality showed a 100% blood transfusion consent accuracy after an electronic signing process was implemented. The average confirmation time savings between the electronic content and paper content was 26 min for the Department of Emergency (estimated difference 95% CI = 26 (20 to 36), p < 0.05). The blood delivering pattern reduced the time for each unit by leaving the average temperature control by 7.24 min (estimated difference 95% CI = 7.24 (6.92 to 7.56), p < 0.05). Furthermore, $3.67 was saved for the blood transportation labor cost for each unit as well. CONCLUSION: Blood transfusion consent electronic signing process not only ensures the accuracy, but also saves the verification time. Moreover, the blood delivering pattern prolongs the blood temperature control time and saves blood transportation labor costs. Thus, these two improvements could enhance transfusion management.

Spatial-temporal patterns of summer urban islands and their economic implications in Beijing.

Urban heat island (UHI) has a great influence on human wellbeing in urban areas. Previous studies have investigated impact on environment, ecosystem, and human health of UHI. To investigate economic impact of UHI is a lack of research. In this study, spatial-econometric hedonic housing price models are developed for estimating the marginal value of summer UHI in Beijing, China. The results showed that UHI effects in Beijing became severe from 2015 to 2017. The heat islands showed a mix of high and sub-high land surface temperature (LST). The spatial Durbin model estimates that one-unit increase of UHI intensity (UHII) would lower the housing value by 3.91%. Regarding the different districts, households had different attitudes to the UHI effect. Specifically, households regarded UHI effect as amenity in the four suburban districts with hills and relatively low LSTs; however, in most urban districts and their surroundings, households were willing to pay to avoid UHI effects with 13.0 dollars to 826.3 dollars for one-degree UHII decrease. This study highlights the urgent need for planners and decision-makers to consider urban expansion, UHI effect, and their economic impact in future urban planning.

Islet-cell autoantigen 69 accelerates liver regeneration by downregulating Tgfbr1 and attenuating Tgfß signaling in mice.

Regeneration is a unique defense mechanism of liver tissue in response to functional cell loss induced by toxic chemicals or surgical resection. In this study, we found that Islet-cell autoantigen 69 (Ica69) accelerates liver regeneration in mice. Following 70% partial hepatectomy, both Ica69 mRNA and protein are significantly upregulated in mouse hepatocytes at the early stage of liver regeneration. Compared with the wild-type mice, Ica69-deficient mice have more severe liver injury, delayed liver regeneration, and high surgical accidental mortality following hepatectomy. Mechanistically, Ica69 interacts with Pick1 protein to regulate Tgfbr1 protein expression and Tgfß-induced Smad2 phosphorylation. Our findings suggest that Ica69 in liver tissue is a new potential target for promoting liver regeneration.

Clinical characteristics and plasma antibody titer of patients with COVID-19 in Zhejiang, China.

Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which first affected humans in China on December 31, 2019 (Shi et al., 2020). Coronaviruses generally cause mild, self-limiting upper respiratory tract infections in humans, such as the common cold, pneumonia, and gastroenteritis (To et al., 2013; Berry et al., 2015; Chan et al., 2015). According to the Report of the World Health Organization (WHO)-China Joint Mission on COVID-19 (WHO, 2020), the case fatality rate of COVID-19 increases with age, while the rate among males is higher than that among females (4.7% and 2.8%, respectively). Since an effective vaccine and specific anti-viral drugs are still under development, passive immunization using the convalescent plasma (CP) of recovered COVID-19 donors may offer a suitable therapeutic strategy for severely ill patients in the meantime. So far, several studies have shown therapeutic efficacy of CP transfusion in treating COVID-19 cases. A pilot study first reported that transfusion of CP with neutralizing antibody titers above 1:640 was well tolerated and could potentially improve clinical outcomes through neutralizing viremia in severe COVID-19 cases (Chen et al., 2020). Immunoglobulin G (IgG) and IgM are the most abundant and important antibodies in protecting the human body from viral attack (Arabi et al., 2015; Marano et al., 2016). Our study aimed to understand the aspects of plasma antibody titer levels in convalescent patients, as well as assessing the clinical characteristics of normal, severely ill, and critically ill patients, and thus provide a basis for guiding CP therapy. We also hoped to find indicators which could serve as a reference in predicting the progression of the disease.

[Protective effect of Ginseng Guipi Pill on liver injury in rats with spleen failing to control blood syndrome and its mechanism].

Objective: To investigate the therapeutic effect of Ginseng Guipi pill on rats with spleen failing to control blood syndrome and its effect on liver. Methods: Forty SPF male Sprague-Dawley rats were randomly divided into normal control group (n=10) and experimental group (n=30). For the first 42 days, the experimental group swam for 30 minutes every day, eating for one day and fasting for two days (diet disorder). On the 43rd to 72nd day, the rats were injected with low-molecular-weight heparin calcium to induce hemorrhage on the basis of exhaustion of swimming and diet disorder to construct a rat model of spleen failing to control blood syndrome. Those thirty rat that successfully established the model were randomly divided into 3 groups (n=10), model control group (MD), natural rehabilitation group (NR) and Guipi Pill group (GP). On the 73rd to 103rd day, the MD group continued to apply factors (exhausted swimming, eating disorder, and injection of low-molecular-weight heparin calcium), the NR group and the GP group stopped applying the factors , the GP group was daily administered with Ginseng Guipi Pill solution (0.2 g/ml, 10 ml/(kg·d)) , and the NR group was given an equal dose of saline. After the 103 days, blood and liver samples were collected, and the serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBil) and total protein (TP) content were detected, the number of red blood cells (RBC), hemoglobin (HGB) content and hematocrit (HCT) were detected, the expressions of IL-6 and TNF-α in serum were determined by ELISA kit, the levels of apoptosis-related proteins Bcl-2, Bax and Caspase3 in liver tissue were detected by Western blot. The expression levels of apoptosis-related proteins Bcl-2, Bax and Caspase3 mRNA in liver tissue were detected by real-time PCR. Results: Compared with the control group, the serum levels of ALT, AST and TBil in the model group were increased significantly, while the serum level of TP was reduced significantly (P＜0.01), the number of RBC, HGB content and HCT were decreased significantly (P＜0.01), the expressions of IL-6 and TNF-α in serum were increased (P＜0.05), the Bcl-2 protein and mRNA levels were reduced, Bax and Caspase3 protein and mRNA levels were increased significantly (P＜0.01); Compared with the model group, the serum levels of ALT, AST and TBil were significantly lower in the natural rehabilitation group and the Guipi Pill group, the level of TP was increased significantly (P＜0.01), the blood RBC, HGB and HCT were increased significantly (P＜ 0.01), the expressions of IL-6 and TNF-α were decreased (P＜0.05), the levels of Bcl-2 protein and mRNA were increased significantly, the Bax, Caspase3 protein and mRNA levels were decreased (P＜0.05); Compared with the natural rehabilitation group, the serum levels of ALT, AST and TBil were reduced , and the TP content was increased significantly in the Guipi Pill group (P＜ 0.01), the number of RBC was increased significantly in the Guipi Pill group (P＜0.05), the levels of Bcl-2 protein and mRNA were increased (P＜0.05),the level of Caspase3 protein was decreased (P＜0.05), the expression of Bax mRNA was reduced significantly (P＜0.05). Conclusion: Ginseng Guipi Pill has protective effect on liver injury in rats with spleen failing to control blood syndrome. The mechanism may be related to the inhibition the liver cell apoptosis and the release of pro-inflammatory cytokines.