bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prototypes virus of hand, foot and mouth disease infections and severe cases in Gansu, China: a spatial and temporal analysis
Authors: Liu Haixia , Zhang Yuzhou , Zhang Hong , Zheng Yunhe , Gou Faxiang , Yang Xiaoting , Cheng Yao , McClymont Hannah , Li Hui , Liu Xinfeng , Hu Wenbiao 
Published: April 2022

Abstract
Background
Little research has been conducted on the spatio-temporal relationship between the severe cases and the enteroviruses infections of hand, foot and mouth disease (HFMD). This study aimed to investigate epidemic features and spatial clusters of HFMD incidence rates and assess the relationship between Enterovirus 71 (EV71) and Coxsackievirus A16 (CoxA16) and severe cases of HMFD in Gansu province, China.

Methods
Weekly county-specific data on HFMD between 1st January and 31st December 2018 were collected from the China Infectious Disease Information System (CIDIS), including enterovirus type (EV71 and CoxA16), severe and non-severe cases in Gansu province, China. Temporal risk [frequency index (α), duration index (β) and intensity index (γ)] and spatial cluster analysis were used to assess epidemic features and identify high-risk areas for HFMD. Time-series cross-correlation function and regression model were used to explore the relationship between the ratios of two types of viruses (i.e. EV71/Cox16) (EC) and severe cases index (i.e. severe cases/non-severe cases) (SI) of HFMD.

Results
Some counties in Dingxi City, Gansu were identified as a hot spot for the temporal risk indices. Time-series cross-correlation analysis showed that SI was significantly associated with EC (r = 0.417, P < 0.05) over a 4-week time lag. The regression analysis showed that SI was positively associated with EC (β = 0.04, 95% confidence interval (CI) 0.02–0.06).

Conclusion
The spatial patterns of HFMD incidence were associated with enteroviruses in Gansu. The research suggested that the EC could be considered a potential early warning sign for predicting severe cases of HFMD in Gansu province.
Nomogram to predict hemorrhagic transformation for acute ischemic stroke in Western China: a retrospective analysis
Authors: Zhang Keming , Luan Jianfang , Li Changqing , Chen Mingli 
Published: April 2022

Abstract
Background and purpose
Hemorrhagic transformation (HT) is the most alarming complication of acute ischemic stroke. We aimed to identify risk factors for HT in Chinese patients and attempted to develop a nomogram to predict individual cases.

Methods
A retrospective study was used to collect the demographic and clinical characteristics of ischemic stroke patients at the Second Affiliated Hospital of Chongqing Medical University (development cohort) and Chongqing Sanbo Changan Hospital (validation cohort) from October 2013 to August 2020. Univariate analysis and multivariate analysis were used to identify the risk factors of patients in the development cohort. The nomogram was generated, and internal validation was performed. We used the area under the receiver-operating characteristic curve (AUC-ROC) to assess the discrimination and used the Hosmer–Lemeshow test to calibrate the model. To further verify the predictability and accuracy of the model, we performed an external validation of the patients in the validation cohort.

Results
A total of 570 patients were used to generate the nomogram. After univariate analysis and multivariate logistic regression, the remaining 7 variables (diabetes mellitus, atrial fibrillation, total cholesterol, fibrous protein, cerebral infarction area, NIHSS score and onset-to-treatment) were independent predictors of HT and used to compose the nomogram. The area under the receiver-operating characteristic curve of the model was 0.889 (95% CI, 0.841–0.938), and the calibration was good (P = 0.487 for the Hosmer–Lemeshow test). The model was validated externally with an AUC-ROC value of 0.832 (95% CI, 0.727–0.938).

Conclusions
The nomogram prediction model in this study has good predictive ability, accuracy and discrimination, which can improve the diagnostic efficiency of HT in patients with acute ischemic stroke.
Oxaliplatin- versus cisplatin-based regimens for elderly individuals with advanced gastric cancer: a retrospective cohort study
Authors: Chinen Takashi , Sasabuchi Yusuke , Matsui Hiroki , Yamaguchi Hironori , Yasunaga Hideo 
Published: April 2022

Abstract
Background
Whether an oxaliplatin- or cisplatin-based regimen is more optimal for treating elderly patients with advanced gastric cancer, in terms of survival and adverse events remains unclear.

Methods
In this retrospective cohort study, we used stacked claim data of residents in two Japanese prefectures collected between 2012 and 2017 and between 2014 and 2019, respectively. We included patients with advanced gastric cancer who received oxaliplatin-based and cisplatin-based regimens. Propensity score overlap weighting analysis was conducted to compare overall survival and granulocyte colony-stimulating factor use during chemotherapy between the oxaliplatin- and cisplatin-based treatment groups.

Results
A total of 242 patients were included in the study. After propensity score weighting, Kaplan–Meier analysis showed no significant differences in overall survival between the two groups (hazard ratio: 1.13; 95% confidence interval, 0.60–2.11; p =  0.70). However, the proportion of patients receiving granulocyte colony-stimulating factor was significantly lower in the oxaliplatin group than in the cisplatin group (2.3% vs.22.7%, p = 0.01).

Conclusions
Survival did not differ significantly between elderly patients with advanced gastric cancer treated with oxaliplatin-based versus cisplatin-based regimens; however, the oxaliplatin-based regimen was associated with less granulocyte colony-stimulating factor use.
Deletion of TRIB3 disrupts the tumor progression induced by integrin αvβ3 in lung cancer
Authors: Zhou Wen , Ma Junjun , Meng Lifeng , Liu Dabei , Chen Jun 
Published: April 2022

Abstract
Background
Integrin αvβ3 has been proposed as crucial determinant for tumor sustained progression and a molecular marker for the estimation of tumor angiogenesis. Our study suggested that integrin αvβ3 could efficiently promote lung cancer cell proliferation and stem-like phenotypes in a tribbles homolog 3 (TRIB3) dependent manner.

Result
Integrin αvβ3 could mediate the activation of FAK/AKT pro-survival signaling pathway. Meanwhile, activated TRIB3 interacted with AKT to upregulated FOXO1 and SOX2 expression, resulting in sustained tumor progression in lung cancer. Our further analysis revealed that TRIB3 was significantly upregulated in lung tumor tissues and correlated with the poor outcome in clinical patients, indicating the potential role of TRIB3 in diagnostic and prognostic estimation for patients with lung cancer.

Conclusion
Our study showed here for the first time that integrin αvβ3 promote lung cancer development by activating the FAK/AKT/SOX2 axis in a TRIB3 dependent signaling pathway, and interrupting TRIB3/AKT interaction significantly improved the outcome of chemotherapy in tumor-bearing mice, representing a promising therapeutic strategy in lung cancer.
A national recruitment strategy for HIV-serodiscordant partners living in Canada for the Positive Plus One study: a mixed-methods study
Authors: Xi Min , Bullock Sandra , Mendelsohn Joshua B. , Iveniuk James , Moravan Veronika , Burchell Ann N. , Tan Darrell H. S. , Daftary Amrita , Thompson Tamara , Lebouché Bertrand , Bisaillon Laura , Myers Ted , Calzavara Liviana 
Published: April 2022

Abstract
Background
With the recent shift in focus to addressing HIV risk within relationships and couple-based interventions to prevent HIV transmission, successful recruitment of individuals involved in HIV-serodiscordant relationships is crucial. This paper evaluates methods used by the Positive Plus One (PP1) study to recruit and collect data on a diverse national sample of dyads and individuals involved in current or past HIV-serodiscordant relationships, discusses the strengths and limitations of the recruitment approach, and makes recommendations to inform the interpretation of study results and the design of future studies.

Methods
PP1 used a multi-pronged approach to recruit adults involved in a current or past HIV-serodiscordant relationship in Canada from 2016 to 2018 to complete a survey and an interview. Upon survey completion, index (first recruited) partners were invited to recruit their primary current HIV-serodiscordant partner. We investigated participant enrollment by recruitment source, participant-, relationship-, and dyad-level sociodemographic characteristics, missing data, and correlates of participation for individuals recruited by their partners.

Results
We recruited 613 participants (355 HIV-positive; 258 HIV-negative) across 10 Canadian provinces, including 153 complete dyads and 307 individuals who participated alone, and representing 460 HIV-serodiscordant relationships. Among those in current relationships, HIV-positive participants were more likely than HIV-negative participants to learn of the study through an ASO staff member (36% v. 20%, p < 0.001), ASO listserv/newsletter (12% v. 5%, p = 0.007), or physician/staff at a clinic (20% v. 11%, p = 0.006). HIV-negative participants involved in current relationships were more likely than HIV-positive participants to learn of the study through their partner (46% v. 8%, p < 0.001). Seventy-eight percent of index participants invited their primary HIV-serodiscordant partner to participate, and 40% were successful. Successful recruitment of primary partners was associated with longer relationship duration, higher relationship satisfaction, and a virally suppressed HIV-positive partner.

Conclusions
Our findings provide important new information on and support the use of a multi-pronged approach to recruit HIV-positive and HIV-negative individuals involved in HIV-serodiscordant relationships in Canada. More creative strategies are needed to help index partners recruit their partner in relationships with lower satisfaction and shorter duration and further minimize the risk of “happy couple” bias.
Online reach and engagement of a child nutrition peer-education program (PICNIC): insights from social media and web analytics
Authors: Henström Maria , Duncanson Kerith , Collins Clare E. , Ashton Lee M. , Davidson Emma , Ball Richard 
Published: April 2022

AbstractBackgroundParents frequently seek parental advice online and on social media; thus, these channels should be better utilized in child health interventions. The Parents in Child Nutrition Informing Community (PICNIC) program aims to facilitate peer-to-peer sharing of evidence-based child feeding information and support parents within their social networks. The present study aimed to explore web and social media analytics to evaluate reach and user engagement with the PICNIC online components.MethodsOnline user activity data from the PICNIC Facebook closed group and public Page were collected through Facebook Insights, and program-specific website traffic data through Google Analytics. Analytics data from Nov-2019 to April-2021 was evaluated through visualisation and summary statistics to obtain insights into program growth and current reach in Australia, compare demographics of audience reached through the online channels, and explore parents’ use and engagement in PICNIC content.ResultsResults showed steady program growth in the 18 months of recruitment; participant numbers grew from 102 to 261 peer educators while the Facebook Page audience increased threefold, totalling 1615 followers. Intervention posts shared on Facebook (4–5 posts/week) typically reached only a portion of PICNIC Page followers each week, but also reached a wider audience through their friends. Throughout the evaluated period, Facebook users actively engaged in PICNIC posts, although the level of engagement varied considerably from post to post. Furthermore, results from this study suggest the strategy of directing potentially interested parents from social media to the website for program sign-up was successful. Finally, the explored data gave insights into users’ availability, demographics and engagement, which will be used to inform refinement of the PICNIC website and social media strategies.ConclusionsOur findings confirm the benefits of using a peer education approach and existing social network channels to disseminate evidence-based child feeding information to parents. This study also demonstrates the usefulness of web and social media analytics to be used as part of a continuous evaluation for gaining insight to inform further development and improvement of program strategies.Trial registrationThe PICNIC project was retrospectively submitted for registration with the Australian New Zealand Clinical Trials Registry (ANZCTR),ACTRN12622000230752(09/02/2022).
PINK1 mediated mitophagy attenuates early apoptosis of gingival epithelial cells induced by high glucose
Authors: Zhu Chunhui , Zhao Ying , Pei Dandan , Liu Zhongbo , Liu Jin , Li Ye , Yu Shuchen , Ma Lingyan , Sun Junyi , Li Ang 
Published: April 2022

Abstract
Background
Oxidative stress mediated by hyperglycemia damages cell-reparative processes such as mitophagy. Down-regulation of mitophagy is considered to be a susceptible factor for diabetes mellitus (DM) and its complications. However, the role of mitophagy in DM-associated periodontitis has not been fully elucidated. Apoptosis of human gingival epithelial cells (hGECs) is one of the representative events of DM-associated periodontitis. Thus, this study aimed to investigate PTEN-induced putative kinase 1 (PINK1)-mediated mitophagy activated in the process of high glucose (HG)-induced hGECs apoptosis.

Methods
For dose–response studies, hGECs were incubated in different concentrations of glucose (5.5, 15, 25, and 50 mmol/L) for 48 h. Then, hGECs were challenged with 25 mmol/L glucose for 12 h and 48 h, respectively. Apoptosis was detected by TdT-mediated dUTP nick end labeling (TUNEL), caspase 9 and mitochondrial membrane potential (MMP). Subsequently, autophagy was evaluated by estimating P62, LC3 II mRNA levels, LC3 fluorescent puncta and LC3-II/I ratio. Meanwhile, the involvement of PINK1-mediated mitophagy was assessed by qRT-PCR, western blotting and immunofluorescence. Finally, hGECs were transfected with shPINK1 and analyzed by MMP, caspase 9 and annexin V-FITC apoptosis.

Results
The number of TUNEL-positive cells and caspase 9 protein were significantly increased in cells challenged with HG (25 mmol/L) for 48 h (HG 48 h). MMP was impaired both at HG 12 h and HG 48 h, but the degree of depolarization was more serious at HG 48 h. The autophagy improved as the amount of LC3 II increased and p62 decreased in HG 12 h. During this process, HG 12 h treatment induced PINK1-mediated mitophagy. PINK1 silencing with HG 12 h resulted in MMP depolarization and cell apoptosis.

Conclusions
These results suggested that loss of the PINK1 gene may cause mitochondrial dysfunction and increase sensitivity to HG-induced apoptosis of hGECs at the early stage. PINK1 mediated mitophagy attenuates early apoptosis of gingival epithelial cells induced by high glucose.
Mandibular incisors with two canals are associated with the presence of the distolingual root in mandibular first molars: a cone-beam computed tomographic study
Authors: Lee Ju-Bin , Seo Min-Seock 
Published: April 2022

AbstractBackgroundThis study aimed to evaluate the root canal configurations and the association between mandibular first molars and distolingual root (DLR) and mandibular incisors using cone-beam computed tomography (CBCT).MethodsMandibular first molars and incisors were evaluated using CBCT images of 150 patients. Mandibular first molars were classified according to the presence or absence of DLR. The curvature of the DLR was evaluated using Schneider’s method in buccolingual and mesiodistal orientations. The angle of the mesiolingual–distolingual–distobuccal canal orifices (ML–DL–DB) was evaluated at the pulpal floor level. The mandibular central and lateral incisors were classified as either single canal or two canals. The association between the root canal system of the mandibular first molar and mandibular incisors was evaluated. Data were analyzed using the Chi-square test, Student’s t-test, and odds ratios from binary logistic regression. The significance level was set at 5%.ResultsThe frequency of mandibular first molars with DLR was 27.0% and that of mandibular incisors with two canals was 25.8%. The curvature of the DLR was 37.1° in the buccolingual orientation and 10.4° in the mesiodistal orientation. The angle of ML–DL–DB was 79.0°. The presence of two canal systems in mandibular incisors was associated with the presence of DLR in the mandibular first molar (left central incisors:p = 0.001, odds ratio = 4.25; left lateral incisors:p < 0.001, odds ratio = 3.8; right central incisors:p = 0.003, odds ratio = 3.86; right lateral incisors:p = 0.001, odds ratio = 3.44) but not with the curvature of the DLR or angle of the ML–DL–DB orifice (p > 0.05).ConclusionsThe mandibular first molar showed a high incidence of separate DLRs. It was confirmed that DLR in the mandibular first molar is highly associated with the presence of two-canal system in the mandibular incisors. This association can aid clinicians in successful endodontic treatments.
Development and validation of the oral presentation evaluation scale (OPES) for nursing students
Authors: Chiang Yi-Chien , Lee Hsiang-Chun , Chu Tsung-Lan , Wu Chia-Ling , Hsiao Ya-Chu 
Published: April 2022

Abstract
Background
Oral presentations are an important educational component for nursing students and nursing educators need to provide students with an assessment of presentations as feedback for improving this skill. However, there are no reliable validated tools available for objective evaluations of presentations. We aimed to develop and validate an oral presentation evaluation scale (OPES) for nursing students when learning effective oral presentations skills and could be used by students to self-rate their own performance, and potentially in the future for educators to assess student presentations.

Methods
The self-report OPES was developed using 28 items generated from a review of the literature about oral presentations and with qualitative face-to-face interviews with university oral presentation tutors and nursing students. Evidence for the internal structure of the 28-item scale was conducted with exploratory and confirmatory factor analysis (EFA and CFA, respectively), and internal consistency. Relationships with Personal Report of Communication Apprehension and Self-Perceived Communication Competence to conduct the relationships with other variables evidence.

Results
Nursing students’ (n = 325) responses to the scale provided the data for the EFA, which resulted in three factors: accuracy of content, effective communication, and clarity of speech. These factors explained 64.75% of the total variance. Eight items were dropped from the original item pool. The Cronbach’s α value was .94 for the total scale and ranged from .84 to .93 for the three factors. The internal structure evidence was examined with CFA using data from a second group of 325 students, and an additional five items were deleted. Except for the adjusted goodness of fit, fit indices of the model were acceptable, which was below the minimum criteria. The final 15-item OPES was significantly correlated with the students’ scores for the Personal Report of Communication Apprehension scale (r = −.51, p < .001) and Self-Perceived Communication Competence Scale (r = .45, p < .001), indicating excellent evidence of the relationships to other variables with other self-report assessments of communication.

Conclusions
The OPES could be adopted as a self-assessment instrument for nursing students when learning oral presentation skills. Further studies are needed to determine if the OPES is a valid instrument for nursing educators’ objective evaluations of student presentations across nursing programs.
Prevalence of burnout syndrome among unmatched trainees and residents in surgical and nonsurgical specialties: a cross-sectional study from different training centers in Palestine
Authors: Shawahna Ramzi , Maqboul Iyad , Ahmad Ola , Al-Issawy Afnan , Abed Batoul 
Published: April 2022

Abstract
Background
Burnout is a psychological syndrome that involves physical, mental, and emotional exhaustion. This study was conducted to determine the prevalence of burnout among unmatched trainees and residents in surgical and nonsurgical specialties in Palestine. Additionally, this study also sought to identify the associated variables and predictors of higher burnout scores.

Methods
This study was conducted in a cross-sectional design using a questionnaire in the period between October 2020 and March 2021. The questionnaire collected sociodemographic characteristics of the residents and trainees in 18 different training centers/hospitals. The Copenhagen Burnout Inventory was used to determine burnout among the residents and trainees. Pearson’s correlations, analysis of variance, Student’s t-test, and multiple linear regressions were used to analyze the data.

Results
The study tool was completed by 250 residents and trainees in surgical and nonsurgical specialties (response rate = 83.3%). Of all participants, 203 (81.2%) reported a moderate-severe degree of burnout in the personal domain, 188 (75.2%) reported a moderate-severe degree of burnout in the work-related domain, and 97 (38.8%) reported moderate-severe degree of burnout in the client-related domain. There was a moderate and positive correlation between personal and work-related burnout scores (Pearson’s r = 0.69, p-value < 0.001), and client-related burnout scores (Pearson’s r = 0.52, p-value < 0.001). Similarly, there was a moderate and positive correlation between work-related and client-related burnout scores (Pearson’s r = 0.57, p-value < 0.001). The multiple linear regression model showed that higher burnout scores were predicted by being married, not having another paid employment, inability to financially support oneself, frequent consumption of tea/coffee, dissatisfied with the training/job, thinking to change the profession, and long working hours.

Conclusion
The findings of this study indicated that burnout was highly prevalent among residents and trainees in surgical and nonsurgical specialties in Palestine. Decision-makers in healthcare authorities, hospital managers, professional groups, directors of residency programs, and educators/trainers should consider addressing burnout and improving the well-being of residents and trainees in surgical and nonsurgical specialties in Palestine. Future studies are still needed to determine which interventions could be effective in reducing burnout among residents and trainees in surgical and nonsurgical specialties in Palestine.