bluuebunny/crossref_metadata_2025_split huggingface dataset:
CRISPR-cas system in the acquisition of virulence genes in dental-root canal and hospital-acquired isolates of Enterococcus faecalis
Authors: Gholizadeh Pourya , Aghazadeh Mohammad , Ghotaslou Reza , Rezaee Mohammad Ahangarzadeh , Pirzadeh Tahereh , Lanotte Philippe , Ganbarov Khudaverdi , Yousefi Mehdi , Kafil Hossein Samadi 
Published: March 2020

Abstract
Introduction

Enterococcus faecalis is one of the important causative agents of nosocomial and life-threatening infections in human. Several studies have demonstrated that the presence of CRISPR- cas is associated with antibiotic susceptibility and lack of virulence traits. In this study, we aimed to assess the phenotypic and genotypic virulence determinants in relation to CRISPR elements from the dental-root canals and hospital-acquired isolates of E. faecalis .

Methods and materials

Eighty-eight hospital-acquired and 73 dental-root canal isolates of E. faecalis were assessed in this study. Phenotypic screening of the isolates included biofilm formation, and gelatinase and hemolysis activities. Genotypical screening using PCR was further used to evaluate the presence of CRISPR elements and different virulence-associated genes such as efaA , esp , cylA , hyl , gelE , ace , ebpR , and asa1 .

Results

Biofilm formation, and gelatinase and hemolysis activity were detected in 93.8%, 29.2% and 19.2% of the isolates, respectively. The most prevalent virulence-associated gene was ace , which was followed by efaA , whereas cylA was the least identified. The presence of CRISPR1- cas , orphan CRISPR2 and CRISPR3- cas was determined in 13%, 55.3% and 17.4% of the isolates, respectively. CRISPR elements were significantly more prevalent in the dental-root canals isolates. An inverse significant correlation was found between CRISPR- cas loci, esp and gelE , while direct correlations were observed in the case of cylA , hyl , gelE (among CRISPR-loci 1 and 3), asa1 , ace , biofilm formation, and hemolysis activity.

Conclusion

Findings, therefore, indicate that CRISPR- cas might prevent the acquisition of some respective pathogenicity factors in some isolates, though not all; so selective forces could not influence pathogenic traits.
Outcomes evaluation after application of multidisciplinary protocol of shared hospital care in patients aged 65 years and older and operated for hip fracture
Authors: Marín Jorge Salvador , Martínez Francisco Javier Ferrández , Ripoll José Miguel Seguí , Rico José Antonio Quesada , Beltrán Domingo Orozco , Carratala-Munuera Concepcion , López José Fernando Martínez , Campos Juan Carlos Marzo 
Published: March 2020

Abstract
The authors have withdrawn this preprint from Research Square
Novel mutations of the SRF gene in Chinese sporadic conotruncal heart defect patients
Authors: Mengmeng Xu , Yuejuan Xu , Sun Chen , Yanan Lu , Fen Li , Kun Sun 
Published: March 2020

Abstract
Background: Conotruncal heart defects (CTDs) are a group of congenital heart malformations that cause anomalies of cardiac outflow tracts. In the past few decades, many genes related to CTDs have been reported. Serum response factor (SRF) is a ubiquitous nuclear protein that acts as transcription factor, and SRF was found to be a critical factor in heart development and to be strongly expressed in the myocardium of the developing mouse and chicken hearts. The targeted inactivation of SRF during heart development leads to embryonic lethality and myocardial defects in mice. Results: To illustrate the relationship between SRF and human heart defects, we screened SRF mutations in 527 CTD patients, a cross sectional study. Two novel mutations (Mut1: c.821A>G p.G274D, the adenine(A) was mutated to guanine(G) at position 821 of the SRF gene coding sequences (CDS), lead to the Glycine(G) mutated to Asparticacid(D) at position 274 of the SRF protein amino acid sequences; Mut2: c.880G>T p.G294C, the guanine(G) was mutated to thymine (T) at position 880 of the SRF CDS, lead to the Glycine(G) mutated to Cysteine (C) at position 294 of the SRF protein amino acid sequences.) of SRF (NM_003131.2) were identified. Western blotting and real-time PCR showed that there were no obvious differences between the protein expression and mRNA transcription of mutants and wild-type SRF. A dual luciferase reporter assay showed that both SRF mutants (G274D and G294C) impaired SRF transcriptional activity at the SRF promoter and atrial natriuretic factor (ANF) promoter (p<0.05), additionally, the mutants displayed reduced synergism with GATA4. Conclusion: These results suggest that SRF-p.G274D and SRF-p.G294C may have potential pathogenic effects.
Impact of a Postcrash First Aid Educational Program on Knowledge, Perceived Skills Confidence, and Skills Utilization Among Traffic Police Officers: A Single-Arm Before-After Intervention Study
Authors: Ndile Menti Lastone , Lukumay Gift G. , Bolenius Karin , Outwater Anne H. , Saveman Britt-Inger , Backteman-Erlanson Susann 
Published: March 2020

Abstract

Background

An overwhelming proportion of road traffic deaths and injuries in low- and middle-income countries (LMICs) occur in prehospital environments. Lay first responders such as police officers play an important role in providing initial assistance to victims of road traffic injuries either alone or in collaboration with others. The present study evaluated a postcrash first aid (PFA) educational program developed for police officers in Tanzania.

Method

A 16-hour PFA educational program was conducted in Dar es Salaam, Tanzania, for 135 police officers. Participants completed training surveys before, immediately and six months after the training (before, N = 135; immediately after, N = 135; after six months, N = 102). The primary outcome measures were PFA knowledge, perceived skills confidence, and skills utilization. Parametric and nonparametric tests were used to analyse changes in outcome.

Results

The mean PFA knowledge score increased from 44.73% before training ( SD = 20.70) to 72.92% six months after training ( SD = 18.12), p ˂ .001, N = 102. The mean PFA perceived skills confidence score (measured on a 1–5 Likert scale) increased from 1.96 before training ( SD = 0.74) to 3.78 six months after training ( SD = 0.70), p ˂ .001, N = 102. Following training, application of the recovery position skill ( n = 42, 46%) and application of the bleeding control skill ( n = 45, 49%) were reported by nearly half of the responding officers. Less than a quarter of officers reported applying head and neck immobilization skills ( n = 20, 22%) following training.

Conclusion

A PFA educational program has shown to improve police officers’ knowledge and perceived skills confidence on provision of first aid. However qualitative research need to be conducted to shed more light regarding reasons for low utilization of trained first aid skills during follow-up.
Central line bundle including split-septum device and single-use prefilled flushing syringes to prevent port-associated bloodstream infections: A cost and resource-utilization analysis
Authors: Devrim Ilker , Ozkul Mustafa T , Çağlar İlknur , Oruç Yeliz , Demiray Nevbahar , Tahta Neryal , Vergin Canan 
Published: March 2020

Abstract

Background: Central line bundle programs were found to be effective in decreasing central line-associated bloodstream infection rates in pediatric cancer patients with ports. However, cost-effectiveness studies of central line bundle programs in pediatric cancer patients are limited, and most available data are from intensive care unit or adult studies. Methods: In this cross-sectional study spanning 6 years, comprehensive assessment of total health care costs attributable to CLABSI's associated with ports between two periods. Results: This cross-sectional study was carried out in the pediatric hematology-oncology ward of Dr. Behçet Uz Children's Hospital from 1 August 2011 to 31 July 2017. The CLABSI rates decreased significantly from 8.31 CLABSIs to 3.04 per 1000 central line days (p<0.001). In the prebundle period, total attributable costs spent for of patients with CLABSI were $130661, and in the bundle period, total attributable costs spent for patients with CLABSI were $116579. Within bundle implantation, 71 potential CLABSI were prevented, which saved an additional $208977. Conclusion: Our study shows that central line bundles decreases not only the CLABSI rate but also decreases attributable costs due to CLABSI. Expenses spent for bundle elements, were covered by savings by preventing CLABSI with higher costs
An exclusion mechanism is epistatic to an internal detoxification mechanism in aluminum resistance in Arabidopsis
Authors: Wang Yuqi , Yu Wancong , Cao Yu , Cai Yanfei , Lyi Sangbom M. , Wu Weiwei , Kang Yan , Liang Cuiyue , LIU JIPING 
Published: March 2020

Abstract
Background: In Arabidopsis, the aluminum (Al) exclusion mechanism is mainly facilitated by ALMT1-mediated malate exudation and MATE-mediated citrate releases from the root. Recently, we have demonstrated that coordinated functioning between the ALMT1-mediated Al exclusion mechanism, via exudation of malate from the root tip, and a NIP1;2-facilitated internal detoxification mechanism, via removal of Al from the root cell wall and subsequent root-to-shoot Al translocation, plays critical roles in achieving overall Al resistance. However, the genetic relationship between ALMT1 and NIP1;2 in these processes remained unclear. Results: Through genetic and physiological analyses, we demonstrate that unlike ALMT1 and MATE, which function independently and additively, ALMT1 and NIP1;2 show an epistatic relationship in Al resistance. These results indicate that ALMT1 and NIP1;2 function in the same biochemical pathway, whereas ALMT1 and MATE in different ones.Conclusion: The establishment of the epistatic relationship and the coordinated functioning between the ALMT1 and NIP1;2-mediated exclusion and internal detoxification mechanisms are pivotal for achieving overall Al resistance in the non-accumulating Arabidopsis plant. We discuss and emphasize the indispensable roles of the root cell wall for the implementation of the Al exclusion mechanism and for the establishment of an epistatic relationship between the ALMT1-mediated exclusion mechanism and the NIP1;2-facilitated internal detoxification mechanism.
Survey of human and bovine tuberculosis infection on dairy farms in southwestern China
Authors: Zhang Shu , Chen Chuang , Rao Zhengyuan , Yang Aiguo , Guo Li , Hou Wei , Zhang Liang , Yang Xiulan , Liu Yan , Wu Yumei 
Published: March 2020

Abstract

Abstract
Background: Tuberculosis is a zoonotic chronic infectious disease caused by Mycobacterium tuberculosis complex (MTBC) that can be transmitted between humans and cattle. The aim of our study was to identify cross-infections of MTBC between humans and cattle on dairy farms in Sichuan Province, southwestern China.
Results: We selected 6 large-scale and 5 small-scale dairy farms in Sichuan Province as research sites. A total of 378 dairy farm workers (except one pregnant woman) were screened for tuberculosis symptoms and examined by X-ray. One worker was diagnosed as tuberculosis, though the sputum culture was negative. In total, 99 of 10,224 (0.97%) cows showed positive results for the purified protein derivative (PPD) skin tests. Esophageal-pharyngeal (OP) secretions from PPD-positive cows were cultured and 21 isolates were obtained. Sequences of 16s rDNA , hsp65 and rpoB and 16s-23s rRNA spacer region were amplified and sequenced. BLAST analysis classified these isolates as nontuberculous mycobacteria (NTM) (18 M. nonchromogenicum , 1 M. hiberniae , 1 M. arupense, and 1 M. chitae isolates).
Conclusion: This study indicates that the PPD-positive cows in these dairy farms were infected with NTM rather than MTBC. Tuberculosis cross-infection between humans and cows on dairy farms has been well controlled in this region.
Implementing a Multidisciplinary Approach for Older Adults with Cancer: Geriatric Oncology in Practice
Authors: Presley Carolyn , Krok-Schoen Jessica , Wall Sarah , Noonan Anne , Jones Desiree , Folefac Edmund , Williams Nicole , Overcash Janine , Rosko Ashley 
Published: March 2020

Abstract
Background: Evidence-based practice in geriatric oncology is growing, and national initiatives have focused on expanding cancer care and research to improve health outcomes of older adults. However, there are still gaps between knowledge and practice for older adults with cancer.

Methods: The Cancer and Aging Resiliency (CARE) clinic is a multidisciplinary approach for implementing geriatric-driven health care for older adults with cancer. The CARE clinic was developed as a direct response to recommendations targeting key multifactorial geriatric health conditions (e.g. falls, nutritional deficits, sensory loss, cognitive impairment, frailty, multiple chronic conditions, and functional status). We review the influence of these factors across the cancer care trajectory, including at screening, diagnosis, and treatment and discuss ways in which these conditions may be targeted to improve cancer care in older adults.

Results: The CARE clinic was implemented at The Ohio State University Comprehensive Cancer Center (OSUCCC) and targets modifiable risk factors affecting outcomes in older adults with cancer: weight loss, polypharmacy, physical impairments, social support, and mood symptoms. The multidisciplinary team at the CARE clinic discusses and delivers a comprehensive set of recommendations, all in one clinic visit, to minimize burden on the patient and the caregiver. The CARE clinic is part of a set of initiatives that feature education of future leaders in geriatric oncology, survivorship care for an aging population, and outcomes research.

Conclusions: Older adults with cancer have a unique set of needs that need to be taken into account throughout their cancer care. The CARE clinic model is an important example of an approach that may combat these difficulties and lead to better outcomes among older adults with cancer.
Transcriptome analysis of lateral buds from Phyllostachys edulis rhizome during germination and early shoot stages
Authors: Shou Yuting , Zhu Yihua , Ding Yulong 
Published: March 2020

Abstract
Background: The vegetative growth is an important stage for plants when they conduct photosynthesis, accumulate and collect all resources needed and prepare for reproduction stage. Bamboo is one of the fastest growing plant species. The rapid growth of Phyllostachys edulis results from the expansion of intercalary meristem at the basal part of nodes, which are differentiated from the apical meristem of rhizome lateral buds. However, little is known about the major signaling pathways and players involved during this rapid development stage of bamboo. To study this question, we adopted the high-throughput sequencing technology and compared the transcriptomes of Moso bamboo rhizome buds in germination stage and late development stage.
Results: We found that the development of Moso bamboo rhizome lateral buds was coordinated by multiple pathways, including meristem development, sugar metabolism and phytohormone signaling. Phytohormones have fundamental impacts on the plant development. We found the evidence of several major hormones participating in the development of Moso bamboo rhizome lateral bud. Furthermore, we showed direct evidence that Gibberellic Acids (GA) signaling participated in the Moso bamboo stem elongation.
Conclusion: Significant changes occur in various signaling pathways during the development of rhizome lateral buds. It is crucial to understand how these changes are translated to Phyllostachys edulis fast growth. These results expand our knowledge on the Moso bamboo internodes fast growth and provide research basis for further study.
Comparison of three dimensional reconstruction and conventional computer tomography angiography in patients undergoing zero-ischemia laparoscopic partial nephrectomy
Authors: Wu Xiaorong , Jiang Chen , Wu Guangyu , Shen Chao , Fu Qibo , Chen Yonghui , Liu Dongming , Xue Wei 
Published: March 2020

Abstract
Background: Advances in three dimensional (3D) reconstruction and printing technology have fueled a rapidly growing interest in its applications in the field of urology. To our knowledge, the experience on the use of 3D reconstruction to facilitate zero-ischemia partial nephrectomy (PN) remains sparse and the role of 3D reconstruction is still needed to be defined. This study aimed to assess the role of 3D reconstruction and conventional computer tomography angiography (CTA) in zero-ischemia laparoscopic partial nephrectomy (LPN).
Methods: A total of 60 consecutive patients undergoing zero-ischemia LPN between October 2017 and March 2018 who underwent CTA (CTA group including 30 patients) and 3D reconstruction (3D group including the remaining 30 patients) preoperatively were included. 3D reconstruction and CTA images were prepared which were used to demonstrate the number and spatial interrelationships of the location of renal tumors and tumor feeding arteries. These radiological findings were directly correlated with intraoperative surgical findings at laparoscopy. Baseline, perioperative variables and the rate of accurate tumor feeding artery orientation were compared between groups.
Results: All the procedures were performed successfully without conversion to main renal artery clamping. Preoperative 3D reconstruction identified that 15 patients had only one tumor feeding artery, 12 had two, and another 3 had three, while the conventional CTA revealed that 22 patients had one tumor feeding artery, 8 had two (P>0.05). The mean operation time was shorter and estimated blood loss was less in the 3D group (P<0.05). 3D reconstruction group resulted in more accurate dissection of tumor artery (91.7%) as compared to conventional CTA (84.2%). There were no statistical differences in the baseline characteristics and renal function outcomes between two groups.
Conclusions: 3D reconstruction can provide comprehensive information for the preoperative evaluation and intraoperative orientation that may facilitate tumor resection during zero-ischemia LPN for renal tumors.
Burnout Syndrome, Extracurricular Activities and Social Support Among Brazilian Internship Medical Students: a Cross-Sectional Analysis.
Authors: Fontana Maria Carolina Pedro , Generoso Igor Prado , Sizilio Alexandre , Bivanco-Lima Danielle 
Published: March 2020

Abstract
Background: Burnout syndrome (BS) is highly prevalent among medical students and is associated with lower empathy and worsening of medical students ́ mental health. The aim of our study was to identify prevalence of BS during internship and its association with self-related social support and participation in extracurricular activities in one medical school in Brazil. Methods: This was a cross-sectional study conducted in 2015, with 121 medical students on internship (56% response rate). They were evaluated using the Maslach Burnout Inventory – Human Services (MBI) and assessed about socio demographic data, social support and extracurricular activities. Results: The overall BS prevalence was 57.5% among medical interns. High emotional exhaustion was present in 33.1% (N=38) of interns, high depersonalization was observed in 45.7% (N=58) and 36.2% of participants (N=46) had low personal accomplishment. Individuals with participation in community services had lower frequency of depersonalization (PR 0.61 CI95% 0.42-0.88). BS was not associated with different types of extracurricular activities and no association was found among BS and the behaviour of seeking social support. Conclusions: We found high prevalence of BS in medical interns, however the behaviour of seeking social support had no association with BS. The interns participating in community activities had lower frequency of high depersonalization.
Transcriptomic and physiological analyses of rice seedlings under different nitrogen supplies provide insight into the regulation involved in axillary bud outgrowth
Authors: Wang Rongna , Qian Junjie , Fang Zhongming , Tang Jihua 
Published: March 2020

Abstract
Background: N is an important macronutrient required for plant development and significantly influences axillary bud outgrowth, which affects tillering and grain yields of rice. However, how different N concentrations affect axillary bud growth at the molecular and transcriptional levels remains unclear. Results: In this study, morphological changes in the axillary bud growth of rice seedlings under different N concentrations ranging from low to high levels were systematically observed. To investigate the expression of N-induced genes involved in axillary bud growth, we used RNA-seq technology to generate mRNA transcriptomic data from two tissue types, basal parts and axillary buds, of plants grown under six different N concentrations. In total, 10,221 and 12,180 DEGs induced by LN or HN supplies were identified in the basal parts and axillary buds, respectively, via comparisons to expression levels under NN level. Analysis of the coexpression modules from the DEGs of the basal parts and axillary buds revealed an abundance of related biological processes underlying the axillary bud growth of plants under N treatments. Among these processes, the activity of cell division and expansion was positively correlated with the growth rate of axillary buds of plants grown under different N supplies. Additionally, TFs and phytohormones were shown to play crucial roles in determining the axillary bud growth of plants grown under different N concentrations. Further validation of OsGS1;2 and OsGS2 , the rice mutants of which presented altered tiller numbers, validated our transcriptomic data. Conclusion: These results indicate that different N concentrations affect the axillary bud growth rate, and our study revealed comprehensive expression profiles of genes that respond to different N concentrations, providing an important resource for future studies attempting to determine how axillary bud growth is controlled by different N supplies.
Laparoscopic based renal denervation in a canine neurogenic hypertension model
Authors: Shao Chunlai , Zhou Yan , You Tao , Xue Boxin , Stella Pieter R , Jiang TingBo , Miao Zhigang , Xu Longjiang , Yin Yin , Lan Longsheng , Rong Guang 
Published: March 2020

Abstract
Background: Previous renal denervation (RDN) studies showed controversial results in reducing blood pressure. The aim of this study was to provide evidence supporting the effectiveness of laparoscopic-based renal denervation (L-RDN) in treating hypertension. Methods: Sixteen Beagle dogs were randomly divided into RDN group (n = 12) and sham group (n = 4). Neurogenic hypertension was generated in all dogs via carotid artery route. L-RDN was performed in the RDN group, with sham operation performed as a control. Blood pressure (BP) changes were recorded at 2, 4, 6, and 8 weeks after the procedure. Changes in serum creatinine (sCr), blood urea nitrogen (BUN) and level of norepinephrine (NE) were analyzed. Histological changes of kidney and renal arteries were also evaluated. Results: BP and NE levels were significantly elevated after hypertension induction (p < 0.01). Systolic and diastolic BP of RDN group were decreased by 15.5 mmHg and 7.3 mmHg (p < 0.0001 and p = 0.0021, respectively) at the eighth week after L-RDN. Invasive systolic and diastolic BP of RDN group were significantly decreased by 14.5 mmHg and 15.3 mmHg (p < 0.0001). In contrast, there was no significant decrease in blood pressure in the sham group. In addition, RDN group but not the sham group showed a significant decrease in NE levels (p < 0.001), while no significant changes in sCr and BUN were observed in both groups. Pathological examinations showed no discernible damage, tear, or dissection to the renal arteries in RND group. Conclusions: L-RDN lowered BP and NE levels in hypertensive dogs without affecting renal artery morphology and kidney function.