bluuebunny/crossref_metadata_2025_split huggingface dataset:
A formula constituted by arsenic trioxide and dimercaprol enhances sensitivity of pancreatic cancer xenografts to radiotherapy
Authors: Han Jinbin , Wu Ning , Liu Ying , Yu Simin , Zhu Jianmin 
Published: June 2020

Abstract
Objective

To investigate the efficacy of the formula constituted by arsenic trioxide (ATO) and dimercaprol (BAL), BAL-ATO, as a radiosensitizer against pancreatic cancer xenografts.

Methods

Four treatment arms, including the control, radiotherapy (RT), BAL-ATO and RT + BAL-ATO, were examined using mouse models bearing SW 1990 human pancreatic cancer xenografts. Besides survival and tumor volume analysis, living imaging for cell apoptosis in tumor samples, confocal laser microscope observation for hypoxia, western blot and immunohistochemistry (IHC) assays were employed to detect the mechanism of BAL-ATO in radiotherapy.

Results

The median survival of the combination (RT + BAL-ATO) group (64.5 days) was significantly longer than those of the control (49.5 days), RT (39 days), and BAL-ATO (48 days) groups ( P < 0.001 ). Compared to the control group, RT + BAL-ATO inhibited the growth of tumors in mice by 73%, which was much higher than the rate of inhibition of RT alone (59%). The further analysis results also showed an improved microenvironment with regard to hypoxia in tumors treated by BAL-ATO alone or RT + BAL-ATO; besides, the suppression of signals, such as CD24, CD44, ALDH1A1, Gli-1 and Nestin, those associating with pancreatic cancer stem cells (PCSCs), were detected in the tumor samples treated by BAL-ATO alone or RT combing with BAL-ATO.

Conclusion

The data suggested that BAL-ATO, a formula constituted by ATO and BAL, could function as a sensitizer to radiotherapy for pancreatic cancer xenografts, and the mechanism might be attributed to hypoxia reduction and inhibition to signal pathways associated with PCSCs.
Identification of potential core genes in atrial fibrillation based on bioinformatics analysis
Authors: Pan Xiaoyu , Zhang Zaiwei 
Published: June 2020

Abstract
OBJECTIVE:Atrial fibrillation (AF) is one of the most common arrhythmias, which is caused by a number of minorring disorders caused by the heart owner's guide. It is noted in almost all organic heart disease and can also occur in non-organic heart disease,causing serious complications, such as heart failure and arterial embolism, seriously threaten people's health.Atrial fibrillation can cause serious complications, such as heart failure and arterial embolism, which seriously threaten people's health. Clinically, according to the characteristics of atrial fibrillation, atrial fibrillation is divided into paroxysmal atrial fibrillation,persistent atrial fibrillation, permanent atrial fibrillation (cannot be converted to sinus rhythm).Among them, persistent atrial fibrillation poses the greatest threat to people's health.So the main purpose of this study is to identify the differential genes in patients with permanent atrial fibrillation. MATERIALS AND METHODS:To explore potential differential genes for permanent atrial fibrillation, we analyzed three microarray datasets GSE2240 derived from the Gene Expression Omnibus (GEO) database. We used the“limma”function package of R software to screen differentially expressed genes(DEGs), and used the“pheatmap”function package to construct heatmaps for the screened differential genes.Visualization and Integration Discovery (DAVID) ,Cytoscape ,BMKcloud and String platforms were utilized for Genome Ontology (GO) analysis,Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis , PPI(protein-proteinInteraction) network analysis ,module analysis,and identification hub genes based on the selected differential genes.RESULTS:74 DEGs in total were identified, including 41 up- and 33 downregulated genes. These DEGs were mainly enriched in PI3K-Akt signaling pathway ,cGMP-PKG signaling pathway, Focal adhesion, and so on. The module analysis filtered out 12 key genes, including PRL, CREB1, AGO2, NAMPT, IGFBP2, FGF7, ANGPT2, SYT13, NRXN1, AQP4, TCEAL2, and CPLX1. 2 Hub genes were identified, including IGFBP2, and FGF7.CONCLUSIONS:IGFBP2 and FGF7 were identified as Hub genes of AF, which helped us to understand more deeply the pathophysiological mechanism of AF.
Investigation on the effect of vitamin C on growth &amp; biofilm-forming potential of Streptococcus mutans isolated from patients with dental caries
Authors: Eydou Zehdi , Jad Bader Naser , Elsayed Zeyad , Ismail Anas , Magaogao Michael , Hossain Ashfaque 
Published: June 2020

Abstract
Background Streptococcus mutans is a major cause of dental caries. Its capacity to produce biofilm is fundamental in the pathogenesis of this ubiquitous condition. As maintaining a healthy dentition is a genuine goal given the contemporary advance in caries control, researchers are striving to achieve a breakthrough in caries therapy. We are taking the anti-cariogenic properties of vitamin C a step-further, considering the well-known evidence of the inversely proportionate relationship between salivary levels of vitamin C and dental caries. The aim of this study was to determine MIC, MBC, minimum biofilm inhibitory concentration (MBIC), and derivative measures of vitamin C against fresh clinical isolates of S. mutans to evaluate its efficacy as an anti-cariogenic agent.Results Based on the data of four independent experiments done in quadruplicates, we found a concentration-dependent inhibitory effect of vitamin C on all S. mutans strains tested. The average MBC, MIC, and MBIC of vitamin C were found to be 10.16, 9.38, and 5.61 mg/ml, respectively. Spectrophotometric quantitation of crystal violet showed diminished biofilm formation in the presence of vitamin C (p < 0.05). This inhibitory effect was not seen when vitamin C was added 18 hours post-inoculation, proving its inability to detach preformed biofilm. When compared with gentamicin, vitamin C produced a zone of inhibition that was three times as large against the clinical isolates.Conclusion Our results show that vitamin C has a negative effect on S. mutans growth and biofilm formation, which appears to be related to an inhibitory mechanism. Being the first to meticulously utilize MBIC to explore a well-known effect of vitamin C, this report aims to help in the instigation of trials of higher evidence that will ultimately culminate in repurposing vitamin C as a novel anti-cariogenic agent, albeit further studies are required to provide auxiliary evidence in this context.
Incidence and Clinical Significance of Delphian Lymph Node Metastasis in Unilateral Papillary Thyroid Carcinoma
Authors: Liu Wei , Wang Zhenglin , Wang Cong , Ai Zhilong 
Published: June 2020

Abstract
Background: Some studies have reported that Delphian lymph node (DLN) metastasis is associated with a poor prognosis of papillary thyroid carcinoma (PTC), but the number of the available studies is limited and the results are inconsistent. The aim of this investigation was to study the incidence and clinical significance of DLN metastasis in patients with unilateral PTC.Methods: This was a cross-sectional study from January 2016 to December 2019. The data were obtained from the department of general surgery in Shanghai Zhongshan Hospital affiliated to Fudan University. This study included 522 patients with unilateral PTC and had DLN harvested. The associations between DLN metastasis and the clinical characteristics of the patients, i.e. age, sex, tumor size, multifocality, capsular invasion, extrathyroidal extension, central lymph nodes (CLN) metastasis (excluding DLN), and lateral lymph nodes (LLN) metastasis was analyzed.Results: Among all the 522 patients, 133 (25.5%) patients had metastasized DLN lymph nodes. DLN metastasis was significantly associated with age (p = 0.047), male (p < 0.001), larger tumor size (p < 0.001), capsular invasion (p < 0.001), extrathyroidal extension (p = 0.004), tumor location in upper third (p = 0.003), other CLN metastasis (p < 0.001), number of positive CLN (excluding DLN) (p < 0.001), LLN metastasis (p = 0.036), number of positive LLN (p = 0.004) and number of DLN removed (p = 0.043). No association was found between DLN metastasis and multifocality, number of CLN removed and number of LLN removed.Conclusions: DLN metastasis is associated with some adverse prognostic markers of PTC. If the DLN is positive on intraoperative frozen section, careful dissection of CLN and careful evaluation of LLN are essential, and intensive follow-up should be warranted.
Discrepancies in sex-specific COVID-19 outcomes in South Asia
Authors: Khan Nusrat , Luhar Shammi , Koirala Dinesh Prasad , Tshokey Tshokey , Chowdhury Rajiv 
Published: June 2020

Abstract
Divergent sex and gender norms in South Asia are key determinants of health conditions and healthcare access. However, sex-discrepancies among South Asians in important COVID-19 outcomes are unknown. We report and examine sex-specific patterning of infection, hospitalisation, deaths, case-fatality and recovery in South Asia, and conclude that contrary to trends in many high-income countries, there is a male predominance in the number of COVID-19 cases and hospitalisations, and a comparatively very low men to women case-fatality-ratio. Our findings emphasise the demand for detailed research into reasons for these sex-discrepancies to develop combative strategies in settings with suboptimal health systems infrastructure.
Effects of Reallocating Physical Activity, Sedentary Behaviors, and Sleep on Mental Health: A Cross-Sectional Examination of Canadian Adolescents in the COMPASS Study
Authors: Gilchrist Jenna , Battista Kate , Patte Karen A. , Faulkner Guy , Carson Valerie , Leatherdale Scott T. 
Published: June 2020

Abstract
Background: Physical activity, sedentary behavior, and sleep are associated with mental health in adolescents. Mental health may depend not only on the amount of time spent in a specific activity, but also on the activity it displaces. The aim of this study was to examine the impact of reallocating 15 minutes of time spent in one health behavior with 15 minutes in another on adolescent mental health. Methods: Cross-sectional data from the students participating in the COMPASS Study (2018-2019) were analyzed (N = 46,413). Participants self-reported the amount of time they spent engaged in moderate-to-vigorous physical activity (MVPA), doing homework and using screens, and their sleep duration on average each day. Participants also self-reported depressive symptoms, anxiety, and flourishing. Data were analyzed using isotemporal substitution modeling. Results: Non-linear associations were evident between sleep and the mental health outcomes, so analyses were stratified by sleep duration based on whether students reported meeting current guidelines or not. Among adolescents getting less than the recommended amount of sleep, replacing any behaviour with sleep was generally associated with better mental health outcomes. Conversely, among adolescents getting adequate sleep, the findings did not support replacing other behaviors with sleep with the exception of screen time. Replacing homework and MVPA with sleep was associated with less flourishing regardless of sleep duration. Of the two sedentary behaviors assessed, replacing screen time with homework was associated with less depression and greater flourishing. However, replacing any behavior with homework was associated with greater anxiety regardless of whether participants reported adequate sleep or not.Conclusions: Replacing screen time with any behaviour may be better for mental health outcomes. Results provide further support for the critical role of sleep in promoting healthy development during adolescence, though more sleep than is recommended may confer little benefit for mental health. Youth getting adequate sleep may benefit from replacing screen time with homework or MVPA. The findings demonstrate that mental health benefits may be obtainable at intervals as short as 15 minutes.
Histological Differentiation Grade and Surgery Affects Short-Term Mortality in Esophageal Squamous Cell Carcinoma Patients
Authors: Kuo Hsuan-Chih , Pan Yi-Ping , Hsu Ting-You , Lin Jui-Ying , Chou Wen-Chi , Lai Chien-Hong , Chang Pei-Hung , Yeh Kun-Yun 
Published: June 2020

Abstract
Background: This study aimed to examine the relationship between the clinicopathological features, nutritional and inflammatory status, type of treatment, and short-term mortality in esophageal squamous cell carcinoma (ESCC) patients. Methods: 205 patients with ESCC were included. The following malnutrition and inflammation criteria at the time of diagnosis were applied: body mass index < 18.5 kg/m2, serum albumin level < 3.5 g/dL, neutrophil-to-lymphocyte ratio (NLR) > 3.5, platelet-to-lymphocyte ratio (PLR) > 17 and C-reactive protein. Clinicopathological features, Malnutrition status, inflammatory condition and the type of treatment were analyzed for 3-month and 6-month mortality rates by univariate and multivariate analysis. Results: The 3-month and 6-month mortality rates were 13.2% and 27.3%, respectively. The multivariate logistic regression model after adjustment for clinicopathological variables and comorbid status found that surgery and histological differentiation grade were prognostic factors for short-term mortality. Conclusions: In addition to surgery, histological differentiation grade independently contributes to high short-term mortality of ESCC patients.
Changes of Peripheral Lymphocyte Populations in Patients with Advanced/Recurrent Ovarian Cancer Undergoing Splenectomy During Cytoreductive Surgery
Authors: Chen Wei , Ye Shuang , Wu Yutuan , Pei Xuan , Xiang Libing , Ping Bo , Shan Boer , Yang Huijuan 
Published: June 2020

Abstract
Background: To investigate the change of peripheral lymphocyte subsets after splenectomy during cytoreductive surgery for advanced or recurrent ovarian cancersMethods: We enrolled 83 patients with advanced or recurrent ovarian cancer who underwent cytoreductive surgery between 09/2016 and 01/2019. Twenty patients who also underwent splenectomy were assigned to the splenectomy cohort and the rest to the non-splenectomy cohort. Flow cytometry was used to measure the peripheral lymphocyte subsets consisting of T cells, regulatory T cells, natural killer cells, B cells, and activation antigens before and after surgery.Results: There was not any difference in the number and distribution of peripheral lymphocyte subsets between the two cohorts before surgery. We observed elevated levels of T cells (CD3+, CD3+CD8+) in the splenectomy cohort compared to those in the non-splenectomy cohort after surgery, which achieved statistical significance. The post-operative CD4/CD8 ratio was lower in the splenectomy cohort than in the non-splenectomy cohort (P = 0.048). Regarding the changes of lymphocyte subsets after surgery, CD8+CD28+ T cells had a significant decreasing tendency (P = 0.011) while CD3+/HLA-DR+ T cells were the opposite (P = 0.001) in the splenectomy cohort. In the non-splenectomy cohort, the proportion of Tregs (P = 0.005) and B cells (P < 0.001) including CD3−/HLA-DR+ B cells (P = 0.007) increased after surgery, and the absolute number of T cells and NK cells decreased to different extents (P < 0.001). The post-operative percentage of CD8+CD28+ T cells was less than the pre-operative one (P = 0.022), which was similar to the splenectomy cohort.Conclusions: The changes of peripheral lymphocyte populations were different between patients with splenectomy and without splenectomy during cytoreductive surgery for advanced or recurrent ovarian cancers. T cells were increased and activated in splenectomy cohort, whereas, B cells were increased and activated in non-splenectomy.
Clinical characteristics, outcomes and follow-up of COVID-19 infection in cancer patients
Authors: Fang Minghao , Ling Jianmin , Wu Yanqing , Wang Zhaohua , Yang Le 
Published: June 2020

Abstract
Purpose: The study is to describe the clinical characteristics, outcomes and follow-up of cancer patients with COVID-19. Methods: Clinical records, demographic data, signs and symptoms, laboratory results, cytokine profiles, chest CT scans, comorbidities, treatments, clinical outcomes, and RT-PCR of SARS-CoV-2 after discharge were retrospectively collected for fifty-six cancer patients with laboratory-confirmed COVID-19 pneumonia who were admitted to Tongji Hospital of Huazhong University of Science and Technology, Wuhan, China, from Feb 1 to Apr 1, 2020. Evidence of cytokine profiles were assessed by testing for the IL1β, IL2R, IL6, IL8, IL10, and TNF - α in the peripheral blood of severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) infected cancer patients. Results: Of 2143 patients with COVID-19, 56 cancer patients were included. The patients were divided into two groups, as cancer survivors, and cancer non-survivors. 12 (21%) patients with lymphopenia (0.5 [0.3-0.7]) had died during hospital stay. In non-survivors, IL2R, IL6, and IL10 were higher. 3(6.8%) cancer survivors with COVID-19 had positive RT-PCR test results again shortly after discharge. Conclusion: The mortality rate of COVID-19 among cancer patients are considerable. Cancer non-survivors are characterized by more severe lymphopenia and a higher levels of cytokines. Recovered cancer survivors still may be virus carriers.
Comparison and Clinical Characteristics of COVID-19 in Different Time Period in Wuhan, China
Authors: Yang Ruhao , Wei Jie , Hu Weihua , Xiong Jun , Liu Menglin , Hu Ke 
Published: June 2020

Abstract
Background SARS-CoV-2 is making deadly impact on the human lives all over the world. Therefore, we aimed to analyze the changes involved in clinical characteristics of COVID-19 patients over time. Methods We conducted a retrospective study to compare the patients whose onset of illness in January with the patients whose onset of illness in February in Wuhan, China.Results Among enrolled 896 patients, the median age was 60 years (47-69 years), 685 (76.5%) were categorized into group A (patients with illness onset in January), and 211 (23.5%) were categorized into group B (patients with illness onset in February). Compared with group B, group A had a higher rate of fever (p<0.001), the lower rate of asymptomatic (p<0.001). Group A had a higher incidence of neutrophilia (p=0.043), elevated D-miner (p<0.001), increased LDH (p=0.002), but lower incidence of normal CT scan (p=0.001). CD3 cells (p=0.015) and CD4 cells p=0.04) count significantly reduced in group A. Critical patients decreased (p=0.005) and mild patients increased (p=0.001) in group B. The fatality rate significantly decreased in group B (p=0.028).Conclusions The condition of patients with onset of illness in January were more serious than patients with onset of illness in February. It indicates that virulence showed reducing effect, but more basic research is required to support the hypothesis.
Effectiveness of Exercise Training on Mental Health, Physical Activity Level and Social Participation in People Living with HIV/AIDS: A Systematic Review and Meta-Analysis
Authors: Ibeneme Sam Chidi , Uwakwe Victor C , Myezwa Hellen , Irem Franklin Onyedinma , Ezenwankwo Fortune Elochukwu , Ajidahun Tunde Adedayo , Ezuma Amarachi Destiny , Okonkwo Uchenna Prosper , Fortwengel Gerhard 
Published: June 2020

Abstract
Background: Exercise training may increase physical activity(PA) level, improve social participation and mental health in people living with HIV/AIDS(PLWHA). Thus, a systematic review was conducted to answer the review question: what is the effectiveness of physical exercise training on mental health, physical activity level and social participation in PLWHA? Method: Eight databases namely: PubMed, Emcare, Cochrane Library, Embase, CINAHL, AMED, PsycoINFO and MEDLINE – were systematically searched from 1990 till August 2019. This review includes only studies published in English language, on adults (>18years) and are either on HAART/HAART-naïve; only RCTs that gave exercise intervention and assessed mental health, physical activity level and social participation on HIV/AIDS patients. The primary outcomes were mental health, PA level and social participation, while the secondary outcomes included psychological disorders. Results: Meta-analysis of the five (out of seven) included studies for depression that met the inclusion criteria (n=346 participants) comprising males/females aged≥18 years, show a significant overall effect (SMD=-0.89,[95%CI:-1.77,-0.01],Z=1.97,p=0.05) of exercise compared to the control group at post-intervention. However, statistical heterogeneity was high (I2=91%,X2=53.14,df=5,p<0.00001). The removal of two papers during sensitivity analysis for missing data/baseline differences showed a large significant effect (SMD=-1.01,[95%CI:-1.45,-0.57],Z=4.48,p=<0.00001). The statistical heterogeneity was low (I2=39%,X2=4.94,df=3,p=0.18). The results demonstrate a significant trend towards a decrease in depressive symptoms for participants in the exercise compared to no exercise group; aerobic exercise compared to normal routine activity group; aerobic and resistance exercise compared to other control groups. Narrative synthesis demonstrates the beneficial effects of exercise training on outcome measures: anxiety and cognitive function, apart from other psychological benefits. There was limited and no RCTs on the effects of exercise on physical activity level and social participation, respectively.Conclusion: Combined exercise (Aerobic exercise+Strength training; 80mins/session; 3X/week for 12weeks.) + routine counselling OR Aerobic exercise training+counselling 40mins per session; 3X/week for 6weeks OR Combined exercise: Aerobic and Resistance exercise training 50mins/session; 2X/week for 6weeks OR Combined exercise: Aerobic and Resistance exercise training 60mins/session; 3X/week for 24weeks OR Aerobic exercise training 60mins per session; 3X per week for 12weeks may improve mood disorders while therapeutic exercise(2X per week for 6weeks) may improve psychological wellbeing.
Epidemiology of Nosocomial Carbapenem-resistant Klebsiella Pneumonia Bloodstream Infections in South China: Factors Related to the Patient Mortality
Authors: xie xiaona , Cai Xueding , Wan Tingting , Shao Lianyou , Chen Lijiang , Yao Dan , Ding Cheng , Li Guoping , Wang Liangxing , Huang Xiaoying 
Published: June 2020

Abstract
Background: Carbapenem-resistant Klebsiella pneumoniae (CRKP) causing Bloodstream infection (BSI) are associated with high rates of mortality. Nevertheless, only a few studies regarding the epidemiology of CRKP BSI in south China. The purpose of this study was to describe the epidemiology, clinical characteristics, and the mortality of risk factors associated with CRKP causing bloodstream infection.Methods: A retrospective study of patients with CRKP BSI was recruited from teaching hospital in south China from January 2016 to December 2018. Clinical data were collected from medical records.Results: In total, 90 patients with CRKP BSI were enrolled in the study, while 57% (51/90) of the CRKP BSI were obtained from ICU. Most CRKP BSIs originated from hospitals (81; 85%), while the rest (9; 10%) were healthcare-associated. In univariate analysis, gastrointestinal hemorrhage (p=0.029), Pitt bacteremia score (P=0.045), Charlson comorbidity index (p=0.018) and Corticosteroids use (p=0.036) and Septic shock (p=0.001) were associated with the risk factors for mortality. In a multivariate analysis, septic shock (adjusted odds ratio [aOR] 5.591, 95% confidence interval [CI] 1.405-22.246, P=0.015) and Corticosteroids use (aOR 4.148, 95% CI 1.331-12.928, P=0.014) were independently predictors of mortality.Conclusion: Our data showed that the morbidity and mortality of CRKP BSIs patient from ICU and non-ICU was no significant difference. Standardizing operation and improving nurse quality may play an important role in CRKP BSI patient in intensive care unit. Septic shock and Corticosteroids use were the independent factors of CRKP BSI patient mortality. However, the study did not show an association between invasive procedures and the development of CRKP BSI.