bluuebunny/crossref_metadata_2025_split huggingface dataset:
Adaptation and convergence in circadian‐related genes in Iberian freshwater fish
Authors: Moreno João M. , Jesus Tiago F. , Coelho Maria M. , Sousa Vitor C. 
Published: March 2021

Abstract
Background
The circadian clock is a biological timing system that improves the ability of organisms to deal with environmental fluctuations. At the molecular level it consists of a network of transcription-translation feedback loops, involving genes that activate (bmal and clock – positive loop) and repress expression (cryptochrome (cry) and period (per) – negative loop). This is regulated by daily alternations of light but can also be affected by temperature. Fish, as ectothermic, depend on the environmental temperature and thus are good models to study its integration within the circadian system. Here, we studied the molecular evolution of circadian genes in four Squalius freshwater fish species, distributed across Western Iberian rivers affected by two climatic types with different environmental conditions (e.g., light and temperature). S. carolitertii and S. pyrenaicus inhabit the colder northern region under Atlantic climate type, while S. torgalensis, S. aradensis and some populations of S. pyrenaicus inhabit the warmer southern region affected by summer droughts, under Mediterranean climate type.

Results
We identified 16 circadian-core genes in the Squalius species using a comparative transcriptomics approach. We detected evidence of positive selection in 12 of these genes using methods based on dN/dS. Positive selection was mainly found in cry and per genes of the negative loop, with 55 putatively adaptive substitutions, 16 located on protein domains. Evidence for positive selection is predominant in southern populations affected by the Mediterranean climate type. By predicting protein features we found that changes at sites under positive selection can impact protein thermostability by changing their aliphatic index and isoelectric point. Additionally, in nine genes, the phylogenetic clustering of species that belong to different clades but inhabit southern basins with similar environmental conditions indicated evolutionary convergence. We found evidence for increased nonsynonymous substitution rate in convergent lineages, likely due to positive selection at 27 sites, mostly in cry genes.

Conclusions
Our results support that temperature may be a selective pressure driving the evolution of genes involved in the circadian system. By integrating sequence-based functional protein prediction with dN/dS-based methods to detect selection we uncovered adaptive convergence in the southern populations, probably related to their similar thermal conditions.
COVID-19 infection control measures and outcomes in urban dialysis centers in predominantly African American communities
Authors: Apata Ibironke W. , Cobb Jason , Navarrete Jose , Burkart John , Plantinga Laura , Lea Janice P. 
Published: March 2021

Abstract
Background
Emory Dialysis serves an urban and predominantly African American population at its four outpatient dialysis facilities. We describe COVID-19 infection control measures implemented and clinical characteristics of patients with COVID-19 in the Emory Dialysis facilities.

Methods
Implementation of COVID-19 infection procedures commenced in February 2020. Subsequently, COVID-19 preparedness assessments were conducted at each facility. Patients with COVID-19 from March 1–May 31, 2020 were included; with a follow-up period spanning March–June 30, 2020. Percentages of patients diagnosed with COVID-19 were calculated, and characteristics of COVID-19 patients were summarized as medians or percentage. Baseline characteristics of all patients receiving care at Emory Dialysis (i.e. Emory general dialysis population) were presented as medians and percentages.

Results
Of 751 dialysis patients, 23 (3.1%) were diagnosed with COVID-19. The median age was 67.0 years and 13 patients (56.6%) were female. Eleven patients (47.8%) were residents of nursing homes. Nineteen patients (82.6%) required hospitalization and 6 patients (26.1%) died; the average number of days from a positive SARS-CoV-2 (COVID) test to death was 16.8 days (range 1–34). Two patients dialyzing at adjacent dialysis stations and a dialysis staff who cared for them, were diagnosed with COVID-19 in a time frame that may suggest transmission in the dialysis facility. In response, universal masking in the facility was implemented (prior to national guidelines recommending universal masking), infection control audits and re-trainings of PPE were also done to bolster infection control practices.

Conclusion
We successfully implemented recommended COVID-19 infection control measures aimed at mitigating the spread of SARS-CoV-2. Most of the patients with COVID-19 required hospitalizations. Dialysis facilities should remain vigilant and monitor for possible transmission of COVID-19 in the facility.
The construction and validation of an RNA binding protein-related prognostic model for bladder cancer
Authors: Chen Fengxia , Wang Qingqing , Zhou Yunfeng 
Published: March 2021

Abstract
Background
RNA-binding proteins (RBPs) play crucial and multifaceted roles in post-transcriptional regulation. While RBPs dysregulation is involved in tumorigenesis and progression, little is known about the role of RBPs in bladder cancer (BLCA) prognosis. This study aimed to establish a prognostic model based on the prognosis-related RBPs to predict the survival of BLCA patients.

Methods
We downloaded BLCA RNA sequence data from The Cancer Genome Atlas (TCGA) database and identified RBPs differentially expressed between tumour and normal tissues. Then, functional enrichment analysis of these differentially expressed RBPs was conducted. Independent prognosis-associated RBPs were identified by univariable and multivariable Cox regression analyses to construct a risk score model. Subsequently, Kaplan–Meier and receiver operating characteristic curves were plotted to assess the performance of this prognostic model. Finally, a nomogram was established followed by the validation of its prognostic value and expression of the hub RBPs.

Results
The 385 differentially expressed RBPs were identified included 218 and 167 upregulated and downregulated RBPs, respectively. The eight independent prognosis-associated RBPs (EFTUD2, GEMIN7, OAS1, APOBEC3H, TRIM71, DARS2, YTHDC1, and RBMS3) were then used to construct a prognostic prediction model. An in-depth analysis showed lower overall survival (OS) in patients in the high-risk subgroup compared to that in patients in the low-risk subgroup according to the prognostic model. The area under the curve of the time-dependent receiver operator characteristic (ROC) curve were 0.795 and 0.669 for the TCGA training and test datasets, respectively, showing a moderate predictive discrimination of the prognostic model. A nomogram was established, which showed a favourable predictive value for the prognosis of BLCA.

Conclusions
We developed and validated the performance of a prognostic model for BLCA that might facilitate the development of new biomarkers for the prognostic assessment of BLCA patients.
In-vitro glistening formation in six different foldable hydrophobic intraocular lenses
Authors: Tandogan Tamer , Auffarth Gerd U. , Son Hyeck-Soo , Merz Patrick , Choi Chul Young , Khoramnia Ramin 
Published: March 2021

Abstract
Background
Glistenings describe small, refractile microvacuoles that may arise within the intraocular lens (IOL) material and reduce the patients’ quality of vision. Lenses composed of hydrophobic acrylic material are particularly affected by glistening formation. In this study, we compared the tendency of glistening formation in six different types of hydrophobic acrylic intraocular lenses (IOLs).

Methods
We used a well-established accelerated laboratory method to develop glistenings in the following IOLs: Vivinex XY1 (Hoya), AcrySof SN60WF (Alcon), Tecnis ZCB00 (AMO), Avansee PN6A (Kowa), Aktis SP NS-60YG (Nidek), and CT Lucia 601P (Zeiss). IOLs were first immersed in saline at 45 °C for 24 h and then at 37 °C for 2.5 h in a water bath. Microvacuole (MV) density and size (Miyata grading) were documented and calculated using an image analysis program.

Results
The mean glistening density [MV/mm2] and mean Miyata grading (in brackets) were: Vivinex: 11.6 ± 5.7 (0), SN60WF: 264.4 ± 110.3 (2.6), Tecnis: 6.0 ± 2.8 (0), Avansee: 2.2 ± 0.7 (0), Aktis: 851.4 ± 59.4 (3+) and CT Lucia: 71.0 ± 71.6 (1).

Conclusions
While all tested IOLs showed glistenings with the accelerated laboratory method, the Aktis and SN60WF showed the highest microvacuole density, followed by the CT Lucia. In comparison, the Vivinex, Tecnis, and Avansee IOLs showed far fewer number of glistenings.
Otitis media outcomes of a combined 10-valent pneumococcal Haemophilus influenzae protein D conjugate vaccine and 13-valent pneumococcal conjugate vaccine schedule at 1-2-4-6 months: PREVIX_COMBO, a 3-arm randomised controlled trial
Authors: Leach Amanda Jane , Mulholland Edward Kim , Santosham Mathuram , Torzillo Paul John , McIntyre Peter , Smith-Vaughan Heidi , Wilson Nicole , Arrowsmith Beth , Beissbarth Jemima , Chatfield Mark D. , Oguoma Victor M. , Morris Peter Stanley 
Published: March 2021

Abstract
Background
Aboriginal children living in Australian remote communities are at high risk of early and persistent otitis media, hearing loss, and social disadvantage. Streptococcus pneumoniae and non-typeable Haemophilus influenzae (NTHi) are the primary pathogens. We compared otitis media outcomes in infants randomised to either a combination of Synflorix™ (PHiD-CV10, with protein D of NTHi) and Prevenar13™ (PCV13, with 3, 6A, and 19A), with recommended schedules for each vaccine alone. We previously reported superior broader overall immunogenicity of the combination schedule at 7 months, and early superiority of PHiD-CV10 compared to PCV13 at 4 months.

Methods
In an open-label superiority trial, we randomised (1:1:1) Aboriginal infants at 28 to 38 days of age, to either Prevenar13™ (P) at 2–4-6 months (_PPP), Synflorix™ (S) at 2–4-6 months (_SSS), or Synflorix™ at 1–2-4 months plus Prevenar13™ at 6 months (SSSP). Ears were assessed using tympanometry at 1 and 2 months, combined with otoscopy at 4, 6, and 7 months. A worst ear diagnosis was made for each child visit according to a severity hierarchy of normal, otitis media with effusion (OME), acute otitis media without perforation (AOMwoP), AOM with perforation (AOMwiP), and chronic suppurative otitis media (CSOM).

Results
Between September 2011 and September 2017, 425 infants were allocated to _PPP(143), _SSS(141) or SSSP(141). Ear assessments were successful in 96% scheduled visits. At 7 months prevalence of any OM was 91, 86, and 90% in the _PPP, _SSS, and SSSP groups, respectively. There were no significant differences in prevalence of any form of otitis media between vaccine groups at any age. Combined group prevalence of any OM was 43, 57, 82, 87, and 89% at 1, 2, 4, 6, and 7 months of age, respectively. Of 388 infants with ear assessments at 4, 6 and 7 months, 277 (71.4%) had OM that met criteria for specialist referral; rAOM, pOME, or CSOM.

Conclusions
Despite superior broader overall immunogenicity of the combination schedule at 7 months, and early superiority of PHiD-CV10 compared to PCV13 at 4 months, there were no significant differences in prevalence of otitis media nor healthy ears throughout the first months of life.

Trial registration
ACTRN12610000544077 registered 06/07/2010 and ClinicalTrials.govNCT01174849 registered 04/08/2010.
Mental health screening amongst police officers: factors associated with under-reporting of symptoms
Authors: Marshall Ruth E. , Milligan-Saville Josie , Petrie Katherine , Bryant Richard A. , Mitchell Philip B. , Harvey Samuel B. 
Published: March 2021

Abstract
Background
Mental health screening in the workplace aims to identify employees who are becoming symptomatic, in order to provide timely support and evidence-based interventions to those affected. Given the stigma associated with mental illness, accurate disclosure of mental health symptoms cannot be assumed. The present study sought to investigate factors associated with the accurate reporting of mental health symptoms amongst police officers.

Methods
A total of 90 serving police officers completed identical mental health screening surveys, one administered by the employer and the other anonymously by an independent organisation. Responses were then linked to compare differences in the number and severity of mental health symptoms reported on each questionnaire.

Results
Comparisons of matched self-report scores indicated that employees under-reported symptoms of mental health disorders when completing screening administered by their employer, with only 76.3% of symptoms declared. Under-reporting occurred regardless of gender and symptom type. Less senior staff (p = 0.05) and those with the most severe post-traumatic stress disorder and common mental disorder symptoms (p = 0.008) were significantly more likely to under-report symptoms.

Conclusions
Employer-administered mental health screening is not able to accurately capture all mental health symptoms amongst first responders. The fact that the severity of symptoms predicted the level of under-reporting means that simple changes to cut-off values cannot correct this problem.
Relationship between oral health-related knowledge, attitudes, practice, self-rated oral health and oral health-related quality of life among Chinese college students: a structural equation modeling approach
Authors: Zheng Suge , Zhao Lili , Ju Nianting , Hua Tiantian , Zhang Shunhua , Liao Shengkai 
Published: March 2021

AbstractBackgroundThis study aimed to evaluate the associations among oral health-related knowledge, attitudes, practice (KAP), self-rated oral health and oral health-related quality of life (OHRQoL) among Chinese college students.MethodsOf the 2000 participants, 1751 (87.55%) students answered an online questionnaire between October 2019 and January 2020. The questionnaire included demographic characteristics, knowledge, attitudes, and practice related to oral health, self-rated oral health, and OHRQoL. Structural equation modelling was applied to assess the associations among study variables.ResultsAmong the total students, oral health-related knowledge and attitudes were satisfactory, while the oral health practice was not optimistic. The final model showed satisfactory fitness to the data. Oral health knowledge was associated with attitudes directly and positively. Attitudes toward oral health had a direct and positive effect on practice. Oral health knowledge had an indirect effect on practice through attitudes. Oral health practice was directly associated with self-rated oral health. Oral health knowledge, practice, and self-rated oral health all affected OHRQoL directly and positively, while attitudes had a direct negative impact on OHRQoL.ConclusionsOHRQoL was influenced by oral health knowledge, attitudes, practice, and self-rated oral health. Our findings support the KAP theory. Limitations of the KAP model were also found.
The necessity of examining patients’ social behavior and teaching behavior change theories: curricular innovations induced by the COVID-19 pandemic
Authors: McKinley Danette Waller , Ghaffarifar Saeideh 
Published: March 2021

AbstractDuring the COVID-19 pandemic, despite many widespread calls for social distancing, recommendations have not been followed by some people and the high rate of non-compliance has significantly affected lives all around the world. It seems that the rate of non-compliance with the recommendations among medical students has been as high as the rest of the other youth. In the time that students are removed from clinical environments and most physician teachers are strained in providing services to patients, medical students can be trained in interdisciplinary behavior change counseling programs and they can be employed in delivering virtual consultations to the patients referred to medical centers.In this quick review, we provide an argument regarding the importance of integrating the topic of patients’ social history into the undergraduate medical curriculum and the necessity of teaching theories of behavior change to medical students. Hypotheses are proposed that focus on the importance of integrating behavioral and social sciences into the medical curriculum and to teach theories or models of behavior change to students. Health professions educators can design and implement interventions to teach hypothesized models of behavioral change to medical students and evaluate the effectiveness of those interventions. The impacts of such educational interventions on increasing people’s compliance with recommendations to improve public health can be evaluated as well.
Impact of COVID-19 pandemic on dental education: online experience and practice expectations among dental students at the University of Jordan
Authors: Hattar Susan , AlHadidi Abeer , Sawair Faleh A. , Alraheam Islam Abd , El-Ma’aita Ahmad , Wahab Fouad Kadim 
Published: March 2021

Abstract
Background
The quarantine associated with the COVID-19 pandemic forced dental schools to suspend their clinical training and to shift to distant learning methods. The aim of this study is to investigate the impact of quarantine on the self-perceived preparedness of dental graduates and to explore the efficacy of online education from students’ perspectives.

Methods
The questionnaire distributed to dental students comprised of two main sections. The first part covered the online education experience, and the second part measured the level of self-perceived preparedness for a range of cognitive, communication and professional skills.

Results
The survey yielded a response rate of 72%. The majority of students (77%) agreed that they missed educational experiences as a result of the lockdown. More than half of them felt less motivated to follow-up with distant e-learning and believed that online assessment is not a good method for evaluation. A high percentage of the students (66%) thought that online group discussions had a positive value while 67% preferred online lectures compared to theatre lectures. Majority of students particularly 5th year (78.7%) (p < 0.001) stated that the quarantine increased their collaboration with their colleagues. According to 87% of students, the experience most negatively affected was their clinical training. In general, students showed satisfactory self-perceived preparedness related to a range of attributes and professional skills.

Conclusions
The data showed that students partially appreciated the online system, whereas they did not consider it a substitute for face to face clinical practice. The overall self-perceived preparedness level was promising; however students had reservations regarding independent practice following graduation.
‘We always find things to learn from.’ Lessons from the implementation of the global maternal sepsis study on research capacity: a qualitative study
Authors: Compaoré Rachidatou , Brizuela Vanessa , Khisa Anne M. , Gómez Alejandra López , Baguiya Adama , Bonet Mercedes , Thorson Anna , Gitau Evelyn , Kouanda Seni 
Published: March 2021

Abstract
Background
Research capacity strengthening could be an indirect outcome of implementing a research project. The objective of this study was to explore the ability of the global maternal sepsis study (GLOSS), implemented in 52 countries, to develop and strengthen sexual and reproductive health research capacity of local participants in low- and middle- income participating countries.

Methods
We carried out a qualitative study employing grounded theory in sixteen countries in Africa and Latin America. We used inductive and deductive methods through a focus group discussion and semi-structured interviews for the emergence of themes. Participants of the focus group discussion (n = 8) were GLOSS principal investigators (PIs) in Latin America. Interviewees (n = 63) were selected by the country GLOSS PIs in both Africa and Latin America, and included a diverse sample of participants involved in different aspects of study implementation. Eighty-two percent of the participants were health workers. We developed a conceptual framework that took into consideration data obtained from the focus group and refined it based on data from the interviews.

Results
Six themes emerged from the data analysis: recognized need for research capacity, unintended effects of participating in research, perceived ownership and linkage with the research study, being just data collectors, belonging to an institution that supports and fosters research, and presenting study results back to study implementers. Research capacity strengthening needs were consistently highlighted including involvement in protocol development, training and technical support, data analysis, and project management. The need for institutional support for researchers to conduct research was also emphasised.

Conclusion
This study suggests that research capacity strengthening of local researchers was an unintentional outcome of the large multi-country study on maternal sepsis. However, for sustainable research capacity to be built, study coordinators and funders need to deliberately plan for it, addressing needs at both the individual and institutional level.
Towards an integrated animal health surveillance system in Tanzania: making better use of existing and potential data sources for early warning surveillance
Authors: George Janeth , Häsler Barbara , Komba Erick , Sindato Calvin , Rweyemamu Mark , Mlangwa James 
Published: March 2021

AbstractBackgroundEffective animal health surveillance systems require reliable, high-quality, and timely data for decision making. In Tanzania, the animal health surveillance system has been relying on a few data sources, which suffer from delays in reporting, underreporting, and high cost of data collection and transmission. The integration of data from multiple sources can enhance early detection and response to animal diseases and facilitate the early control of outbreaks. This study aimed to identify and assess existing and potential data sources for the animal health surveillance system in Tanzania and how they can be better used for early warning surveillance. The study used a mixed-method design to identify and assess data sources. Data were collected through document reviews, internet search, cross-sectional survey, key informant interviews, site visits, and non-participant observation. The assessment was done using pre-defined criteria.ResultsA total of 13 data sources were identified and assessed. Most surveillance data came from livestock farmers, slaughter facilities, and livestock markets; while animal dip sites were the least used sources. Commercial farms and veterinary shops, electronic surveillance tools like AfyaData and Event Mobile Application (EMA-i) and information systems such as the Tanzania National Livestock Identification and Traceability System (TANLITS) and Agricultural Routine Data System (ARDS) show potential to generate relevant data for the national animal health surveillance system. The common variables found across most sources were: the name of the place (12/13), animal type/species (12/13), syndromes (10/13) and number of affected animals (8/13). The majority of the sources had good surveillance data contents and were accessible with medium to maximum spatial coverage. However, there was significant variation in terms of data frequency, accuracy and cost. There were limited integration and coordination of data flow from the identified sources with minimum to non-existing automated data entry and transmission.ConclusionThe study demonstrated how the available data sources have great potential for early warning surveillance in Tanzania. Both existing and potential data sources had complementary strengths and weaknesses; a multi-source surveillance system would be best placed to harness these different strengths.