bluuebunny/crossref_metadata_2025_split huggingface dataset:
Construction of a high-density SNP-based genetic map and identification of fruit-related QTLs and candidate genes in peach [Prunus persica (L.) Batsch]
Authors: Shi Pei , Xu Ze , Zhang Shaoyu , Wang Xianju , Ma Xiaofei , Zheng Jicheng , Xing Libo , Zhang Dong , Ma Juanjuan , Han Mingyu , Zhao Caiping 
Published: September 2020

Abstract
Background
High-density genetic mapping is a valuable tool for mapping loci that control specific traits for perennial fruit trees. Peach is an economically important fruit tree and a model Rosaceae species for genomic and genetic research. In peach, even though many molecular markers, genetic maps and QTL mappings have been reported, further research on the improvement of marker numbers, map densities, QTL accuracy and candidate gene identification is still warranted.

Results
A high-density single nucleotide polymorphism (SNP)-based peach linkage map was constructed using specific locus amplified fragment sequencing (SLAF-seq). This genetic map consisted of 7998 SLAF markers, spanning 1098.79 cM with an average distance of 0.17 cM between adjacent markers. A total of 40 QTLs and 885 annotated candidate genes were detected for 10 fruit-related traits, including fruit weight (FW), fruit diameter (FD), percentage of red skin colour (PSC), eating quality (EQ), fruit flavour (FV), red in flesh (RF), red around pit (RP), adherence to pit (AP), fruit development period (FDP) and fruit fibre content (FFC). Eighteen QTLs for soluble solid content (SSC) were identified along LGs 1, 4, 5, and 6 in 2015 and 2016, and 540 genes were annotated in QTL intervals. Thirty-two QTLs for fruit acidity content (FA) were detected on LG1, and 2, 4, 5, 6, and 1232 candidate genes were identified. The expression profiles of 2 candidate genes for SSC and 4 for FA were analysed in parents and their offspring.

Conclusions
We constructed a high-density genetic map in peach based on SLAF-seq, which may contribute to the identification of important agronomic trait loci. Ninety QTLs for 12 fruit-related traits were identified, most of which overlapped with previous reports, and some new QTLs were obtained. A large number of candidate genes for fruit-related traits were screened and identified. These results may improve our understanding of the genetic control of fruit quality traits and provide useful information in marker-assisted selection for fruit quality in peach breeding programmes.
Underwater versus conventional endoscopic mucosal resection for small size non-pedunculated colorectal polyps: a randomized controlled trial
Authors: Zhang Zhixin , Xia Yonghong , Cui Hongyao , Yuan Xin , Wang Chunnian , Xie Jiarong , Tong Yarong , Wang Weihong , Xu Lei 
Published: September 2020

Abstract
Background
Underwater endoscopic mucosal resection (UEMR) is a recently developed technique and can be performed during water-aided or ordinary colonoscopy for the treatment of colorectal polyps. The objective of this clinical trial was to evaluate the efficacy and safety of UEMR in comparison with conventional endoscopic mucosal resection (CEMR) of small non-pedunculated colorectal polyps.

Methods
Patients with small size, non-pedunculated colorectal polyps (4–9 mm in size) who underwent colonoscopic polypectomy were enrolled in this multicenter randomized controlled clinical trial. The patients were randomly allocated to two groups, an UEMR group and a CEMR group. Efficacy and safety were compared between groups.

Results
In the intention-to-treat (ITT) analysis, the complete resection rate was 83.1% (59/71) in the UEMR group and 87.3% (62/71) in the CEMR group. The en-bloc resection rate was 94.4% (67/71) in the UEMR group and 91.5% (65/71) in the CEMR group (difference 2.9%; 90% CI − 4.2 to 9.9%), showed noninferiority (noninferiority margin − 5.7% < − 4.2%). No significant difference in procedure time (81 s vs. 72 s, P = 0.183) was observed. Early bleeding was observed in 1.4% of patients in the CEMR group (1/71) and 1.4% of patients in the UEMR group (1/71). None of the patients in the UEMR group complained of postprocedural bloody stool, whereas two patients in the CEMR group (2/64) reported this adverse event.

Conclusion
Our results indicate that UEMR is safer and just as effective as CEMR in En-bloc resection for the treatment of small colorectal polyps as such, UEMR is recommended as an alternative approach to excising small and non-pedunculated colorectal adenomatous polyps.

Trial registration
Clinical Trials.gov, NCT03833492. Retrospectively registered on February 7, 2019.
Defining the optimal bilirubin level before hepatectomy for hilar cholangiocarcinoma
Authors: She Wong Hoi , Cheung Tan To , Ma Ka Wing , Tsang Simon H. Y. , Dai Wing Chiu , Chan Albert C. Y. , Lo Chung Mau 
Published: September 2020

Abstract
Background
In the management of operable hilar cholangiocarcinoma (HC) patients with hyperbilirubinemia, preoperative biliary drainage is a measure to bring down the bilirubin to a certain level so as to avoid adverse postoperative outcomes that would otherwise result from hyperbilirubinemia. A cutoff value of bilirubin level in this context is needed but has not been agreed upon without controversy. This retrospective study aimed to identify a cutoff of preoperative bilirubin level that would minimize postoperative morbidity and mortality.

Methods
Data of patients having hepatectomy with curative intent for HC were analyzed. Discriminative analysis was performed to identify the preoperative bilirubin level that would make a survival difference. The identified level was used as the cutoff to divide patients into two groups. The groups were compared.

Results
Ninety patients received hepatectomy with curative intent for HC. Their median preoperative bilirubin level was 23 μmol/L. A cutoff preoperative bilirubin level of 75 μmol/L was derived from Youden’s index (sensitivity 0.333; specificity 0.949) and confirmed to be optimal by logistic regression (relative risk 9.250; 95% confidence interval 1.932–44.291; p = 0.005), with mortality shown to be statistically different at 90 days (p = 0.008). Patients were divided into Group A (≤75 μmol/L; n = 82) and Group B (> 75 μmol/L; n = 8). Group B had a higher preoperative bilirubin level (p < 0.001), more intraoperative blood loss (3.12 vs 1.4 L; p = 0.008), transfusion (100% vs 42.0%; p = 0.011) and replacement (2.45 vs 0.0 L; p < 0.001), more postoperative renal complications (p = 0.036), more in-hospital deaths (50% vs 8.5%; p = 0.004), and more 90-day deaths (50% vs 9.8%; p = 0.008). Group A had a longer follow-up period (p = 0.008). The groups were otherwise comparable. Disease-free survival was similar between groups (p = 0.142) but overall survival was better in Group A (5-year, 25.2% vs 0%; p < 0.001). On multivariate analysis, preoperative bilirubin level and intraoperative blood replacement were risk factors for 90-day mortality.

Conclusion
A cutoff value of preoperative bilirubin level of 75 μmol/L is suggested, as the study showed that a preoperative bilirubin level ≤ 75 μmol/L resulted in significantly less blood replacement necessitated by blood loss during operation and significantly better patient survival after surgery.
Clinical practice guideline on the prevention and management of neonatal extravasation injury: a before-and-after study design
Authors: Chan Kam Ming , Chau Janita Pak Chun , Choi Kai Chow , Fung Genevieve Po Gee , Lui Wai Wa , Chan Meme Suk Ying , Lo Suzanne Hoi Shan 
Published: September 2020

Abstract
Background
Extravasation injury resulting from intravenous therapies delivered via peripheral intravenous catheters or umbilical and peripherally inserted central venous catheters is a common iatrogenic complication occurring in neonatal intensive care units. This study aimed to evaluate the effectiveness of an evidence-based clinical practice guideline in the prevention and management of neonatal extravasation injury by nurses.

Methods
A controlled before-and-after study was conducted in a neonatal unit. The clinical practice guideline was developed, and a multifaceted educational program was delivered to nurses. Neonatal outcomes, including the rates of peripheral intravenous extravasation and extravasation from a central line, were collected at the pre- and post-intervention periods. Post-intervention data for nurses, including the nurses’ level of knowledge and adherence, were collected at six months after the program.

Results
104 and 109 neonates were recruited in the pre-intervention period (control) and the post-intervention period (intervention), respectively. The extravasation rate before and after the intervention was 14.04 and 2.90 per 1,000 peripheral intravenous catheters days, respectively. The adjusted odds ratio of peripheral intravenous extravasation post-intervention compared with that of pre-intervention was 0.20 (95% confidence interval: 0.05–0.74; p = 0.02) after adjusting for peripheral intravenous catheter days. The extravasation from a central line rate of the control and intervention groups post-intervention was 4.94 and zero per 1,000 central venous catheter days, respectively. Fifty-nine registered nurses were recruited. At six months post-program, there were significant improvements in the nurses’ level of knowledge and adherence.

Conclusions
These findings suggest that the implementation of an evidence-based clinical practice guideline significantly reduced the rate of peripheral intravenous extravasation and extravasation from a central line in neonates. However, to maintain nurses’ knowledge and adherence to the evidence-based practice, the educational program will have to be conducted periodically and incorporated into the nurses’ induction program.

Trial registration
ClinicalTrials.gov, Identifiers: NCT04321447. Registered 20 March 2020 - Retrospectively registered.
Professional development arising from multiple-site workplace learning: boundary crossing between the education and clinical contexts
Authors: Barry Margot , Kuijer-Siebelink Wietske , Niewenhuis Loek A. F. M. , Scherpbier Nynke 
Published: September 2020

AbstractBackgroundThis research explores the value of an inter-organisational jurisdiction, on the professional development of faculty members in their roles of researcher and educator. Faculty members from a Dutch university of applied sciences, who work in both the education and clinical practice contexts, participated in this research.MethodsIndividual semi-structured interview were conducted with nine faculty members, from various academic health professions, on their experiences of professional development arising from working in both the clinical and education contexts. In this exploratory, post-positive interview study, interview transcripts were analysed thematically.ResultsParticipants reported that working in two organisational contexts, whilst performing two faculty roles that span both contexts, enhances their ability to broker connections between research, teaching and practice. The boundary crossing activities which participants performed, contributed to professional development in all faculty roles. The broker role was not seen as being a unique role which is distinct from research and practice roles. Broker activities were seen as generic and supportive of the roles that bestow academic status and expertise.ConclusionsTo the participants in this research, the relevance of the broker role in professional development is not as evident as the relevance of roles that enhance specialisation and subject specific expertise. They consider broker activities as supportive to the roles of researcher and teacher. The broker role is time consuming, but not yet visible as a distinct professionalisable work-package in its own right. It is also not well defined in literature. A better understanding of the broker role could lead to its development in order to harness its professional development potential tenably across academic roles.
Patients’ experiences with the advanced practice nurse role in Swiss family practices: a qualitative study
Authors: Schönenberger Nicole , Sottas Beat , Merlo Christoph , Essig Stefan , Gysin Stefan 
Published: September 2020

Abstract
Background
Considering shortages of general practitioners (GP) and strategies for improving the quality of health care provision, many countries have implemented interprofessional care models with advanced practice nurses (APN). International evidence suggests that APN care results in high patient satisfaction. In Switzerland, the role is still new, and the patient perspective has not yet been researched. Our aim was therefore to explore patients’ experiences with the APN role in Swiss family practices.

Methods
We conducted 22 semi-structured interviews in four different family practices with patients aged 18 to 97 suffering from minor acute to multiple chronic diseases, and who had at least one consultation with an APN. All interviews were audiotaped, transcribed verbatim, and analysed using qualitative content analysis.

Results
The analysis resulted in five themes: Despite the unfamiliarity, all patients were willing to be consulted by an APN because it was recommended by their GP (1); after several encounters, most participants perceived differences between the APN and the GP consultation in terms of the length and style of the consultations as well as the complexity of their tasks (2); the interviewees emphasised coaching, guidance, care coordination, and GP-assisting tasks as APN core competencies and attributed the characteristics empathetic, trustworthy, and competent to the APN role (3); most patients especially valued home visits and the holistic approach of the APNs, but they also noticed that in certain cases GP supervision was required (4); and due to the close collaboration between the APN and the GP, patients felt safe, well cared for and experienced improvements in physical and psychological well-being as well as in daily activities (5).

Conclusion
Our results suggested that patients value the APNs’ competencies, despite their initial lack of role knowledge. Trust in the GP seemed to be the most important factor for patients’ receptiveness toward the APN role. Overall, patients perceived an added value due to the enlargement of the scope of practice offered by APNs. The patient perspective might provide valuable insights for further APN role implementation in Swiss family practices.
Lung function, pharmacokinetics, and tolerability of inhaled indacaterol maleate and acetate in asthma patients
Authors: Miller David , Vaidya Soniya , Jauernig Juergen , Ethell Brian , Wagner Kristina , Radhakrishnan Rajkumar , Tillmann Hanns-Christian 
Published: September 2020

Abstract
Background
Indacaterol maleate delivered with the Breezhaler® inhalation device is a long-acting β2-agonist approved for chronic obstructive pulmonary disease. In the development of a once daily, inhaled fixed dose combination (FDC) of indacaterol, glycopyrronium bromide (a long-acting muscarinic antagonist), and mometasone furoate (an inhaled corticosteroid [ICS]) for the treatment of patients with asthma, the acetate salt of indacaterol is used instead of the maleate salt. Here, we investigated the lung function, pharmacokinetics (PK) and safety of indacaterol maleate 150 μg once daily (o.d.) and indacaterol acetate 150 μg o.d. in comparison with placebo.

Methods
This was a randomised, double-blind, three-period crossover study (ClinicalTrials.gov identifier, NCT03257995) in patients with asthma on background ICS therapy. Patients with percent predicted pre-bronchodilator forced expiratory volume per second (FEV1) ≥50% and ≤ 90% were included in the study. Patients received indacaterol maleate 150 μg o.d., indacaterol acetate 150 μg o.d., or placebo on top of stable background ICS in randomised sequence. Trough FEV1 was assessed after 14 days of treatment. PK of indacaterol salts were assessed at steady state after 14 days of treatment; peak expiratory flow (PEF) rate and rescue medication use were collected with a combined PEF-meter/electronic diary throughout the study.

Results
Of the 54 adult patients (median age of 48 years), 51 patients completed the study. Both indacaterol salts demonstrated statistically significant improvements in trough FEV1 of 186 mL (maleate) and 146 mL (acetate) compared with placebo (both P < 0.001). FEV1 AUC0-4h improved by 248 mL (maleate) and 245 mL (acetate), and PEF by 33 L/min (maleate) and 30.8 L/min (acetate) versus placebo. Systemic exposure of indacaterol (AUC0-24h,ss and Cmax,ss on Day 14) was comparable after administration of both salt forms. Both salt forms demonstrated a good safety profile and were well tolerated, with a difference in the reporting frequency of AEs of coughing (maleate, 23.5%; acetate, 0%).

Conclusions
In patients with asthma, indacaterol maleate and acetate elicited comparable and significant improvements in lung function compared with placebo and achieved comparable systemic exposure. Both indacaterol salts were safe and well tolerated.

Trial registration
ClinicalTrials.gov NCT03257995 June 06, 2017
Ketamine normalizes high-gamma power in the anterior cingulate cortex in a rat chronic pain model
Authors: Friesner Isabel D. , Martinez Erik , Zhou Haocheng , Gould Jonathan Douglas , Li Anna , Chen Zhe Sage , Zhang Qiaosheng , Wang Jing 
Published: September 2020

AbstractChronic pain alters cortical and subcortical plasticity, causing enhanced sensory and affective responses to peripheral nociceptive inputs. Previous studies have shown that ketamine had the potential to inhibit abnormally amplified affective responses of single neurons by suppressing hyperactivity in the anterior cingulate cortex (ACC). However, the mechanism of this enduring effect has yet to be understood at the network level. In this study, we recorded local field potentials from the ACC of freely moving rats. Animals were injected with complete Freund’s adjuvant (CFA) to induce persistent inflammatory pain. Mechanical stimulations were administered to the hind paw before and after CFA administration. We found a significant increase in the high-gamma band (60–100 Hz) power in response to evoked pain after CFA treatment. Ketamine, however, reduced the high-gamma band power in response to evoked pain in CFA-treated rats. In addition, ketamine had a sustained effect on the high-gamma band power lasting up to five days after a single dose administration. These results demonstrate that ketamine has the potential to alter maladaptive neural responses in the ACC induced by chronic pain.
Principal components of tau positron emission tomography and longitudinal tau accumulation in Alzheimer’s disease
Authors: Cho Hanna , Baek Min Seok , Lee Hye Sun , Lee Jae Hoon , Ryu Young Hoon , Lyoo Chul Hyoung 
Published: September 2020

Abstract
Background
We aimed to investigate the clinical correlates of principal components (PCs) of tau positron emission tomography (PET) and their predictability for longitudinal changes in tau accumulation in Alzheimer’s disease (AD).

Methods
We enrolled 272 participants who underwent two PET scans [18F-flortaucipir for tau and 18F-florbetaben for amyloid-β (Aβ)], brain magnetic resonance imaging, and neuropsychological tests as baseline assessments. Among them, 187 participants underwent the same follow-up assessments after an average of 2 years. Using Aβ-positive AD dementia-specific PCs obtained from the baseline scans of 56 Aβ-positive patients with AD dementia, we determined the expression of the first two PCs (PC1 and PC2) in all participants. We assessed the correlation of PC expression with baseline clinical characteristics and tau accumulation rates. Moreover, we investigated the predictability of PCs for the longitudinal tau accumulation in training and test sets.

Results
PC1 corresponded to the tau distribution pattern in AD, while the two PC2 extremes reflected the parietal or temporal predominance of tau distribution. PC1 expression increased with tau burden and decreased with cognitive impairment, while PC2 expression decreased with advanced age and visuospatial and attention function deterioration. The tau accumulation rate was positively correlated with PC1 expression (greater tau burden) and negatively correlated with PC2 expression (temporal predominance). A regression model using both PCs could predict longitudinal changes in the tau burden (intraclass correlation coefficient = 0.775, R2 = 0.456 in test set).

Conclusions
PC analysis of tau PET could be useful for evaluating disease progression, characterizing the tau distribution pattern, and predicting longitudinal tau accumulation.
Predictive value of a false-negative focused abdominal sonography for trauma (FAST) result in patients with confirmed traumatic abdominal injury
Authors: Alramdan Mohammed H. A. , Yakar Derya , IJpma Frank F. A. , Kasalak Ömer , Kwee Thomas C. 
Published: September 2020

Abstract
Objective
To investigate if patients with confirmed traumatic abdominal injury and a false-negative focused abdominal sonography for trauma (FAST) examination have a more favorable prognosis than those with a true-positive FAST.

Methods
This study included 97 consecutive patients with confirmed traumatic abdominal injury (based on computed tomography [CT] and/or surgical findings) who underwent FAST.

Results
FAST was false-negative in 40 patients (41.2%) and true-positive in 57 patients (58.8%). Twenty-two patients (22.7%) had an unfavorable outcome (defined as the need for an interventional radiologic procedure, laparotomy, or death due to abdominal injury). Univariately, a false-negative FAST (odds ratio [OR] 0.24; p = 0.017) and a higher systolic blood pressure (OR, 0.97 per mmHg increase; p = 0.034) were significantly associated with a favorable outcome, whereas contrast extravasation on CT (OR, 7.17; p = 0.001) and shock index classification (OR, 1.89 for each higher class; p = 0.046) were significantly associated with an unfavorable outcome. Multivariately, only contrast extravasation on CT remained significantly associated with an unfavorable outcome (OR, 4.64; p = 0.016). When excluding contrast extravasation on CT from multivariate analysis, only a false-negative FAST result was predictive of a favorable outcome (OR, 0.28; p = 0.038).

Conclusion
Trauma patients with confirmed abdominal injury and a false-negative FAST have a better outcome than those with a positive FAST. FAST may be valuable for risk stratification and prognostication in patients with a high suspicion of abdominal injury when CT has not been performed yet or when CT is not available.