bluuebunny/crossref_metadata_2025_split huggingface dataset:
Determining optimal mulching, planting density, and nitrogen application to increase maize grain yield and nitrogen translocation efficiency in Northwest China
Authors: Wang Xiukang , Wang Ge , Turner Neil C. , Xing Yingying , Li Meitian , Guo Tao 
Published: June 2020

AbstractBackgroundThe combination of mulch with N fertilizer application is a common agronomic technique used in the production of rainfed maize (Zea mays L.) to achieve higher yields under conditions of optimum planting density and adequate N supply. However, the combined effects of mulch, planting density, and N fertilizer application rate on plant N uptake and N translocation efficiency are not known. The objective of this study was to quantify the interaction effect of mulch, planting density, and N fertilizer application rate on maize grain yield, N uptake, N translocation, and N translocation efficiency. The experiment was arranged in a randomized complete block design with three factors (2 mulch levels × 2 planting densities × 4 N fertilizer application rates) replicated four times.ResultsThere was a significant interaction among mulch, plant density, and N fertilizer on maize grain yield, kernel number per cob, N uptake, N translocation, and N translocation efficiency. Averaged over the 3 years of the study, total plant N uptake at silking ranged from 79 to 149 kg N ha− 1with no mulch and from 76 to 178 kg N ha− 1with mulch. The N uptake at silking in different plant organs ranked as leaf > grain > stem > cob. Averaged across all factors, the highest N translocation was observed in leaves, which was 59.4 and 88.7% higher than observed in stems and ears, respectively. The mean vegetative organ N translocation efficiency averaged over mulch, planting density, and N fertilizer application rate treatments decreased in the order of leaf > stem > cob.ConclusionsMulch, planting density, and N fertilizer application rate not only have significant effects on improving maize grain yield and NUE, but also on N uptake, N translocation, and N translocation efficiency. Our results showed clearly that under high planting density, the combination of mulch and moderate N fertilizer application rate was the optimal strategy for increasing maize grain yield and N use efficiency.
Ectopic expression of miRNA172 in tomato (Solanum lycopersicum) reveals novel function in fruit development through regulation of an AP2 transcription factor
Authors: Chung Mi-Young , Nath Ujjal Kumar , Vrebalov Julia , Gapper Nigel , Lee Je Min , Lee Do-Jin , Kim Chang Kil , Giovannoni James 
Published: June 2020

Abstract
Background
MicroRNAs (miRNAs) are short non-coding RNAs that can influence gene expression via diverse mechanisms. Tomato is a fruit widely consumed for its flavor, culinary attributes, and high nutritional quality. Tomato fruit are climacteric and fleshy, and their ripening is regulated by endogenous and exogenous signals operating through a coordinated genetic network. Much research has been conducted on mechanisms of tomato fruit ripening, but the roles of miRNA-regulated repression/expression of specific regulatory genes are not well documented.

Results
In this study, we demonstrate that miR172 specifically targets four SlAP2 transcription factor genes in tomato. Among them, SlAP2a was repressed by the overexpression of SlmiR172, manifesting in altered flower morphology, development and accelerated ripening. miR172 over-expression lines specifically repressed SlAP2a, enhancing ethylene biosynthesis, fruit color and additional ripening characteristics. Most previously described ripening-regulatory genes, including RIN-MADS, NR, TAGL1 and LeHB-1 were not influenced by miR172 while CNR showed altered expression.

Conclusions
Tomato fruit ripening is directly influenced by miR172 targeting of the APETALA2 transcription factor, SlAP2a, with minimal influence over additional known ripening-regulatory genes. miR172a-guided SlAP2a expression provides insight into another layer of genetic control of ripening and a target for modifying the quality and nutritional value of tomato and possibly other fleshy fruit crops.
Carotid endarterectomy versus conservative management of the asymptomatic carotid stenosis before coronary artery bypass grafting: a retrospective study
Authors: Lescan Mario , Andic Mateja , Bartos Oana , Schlensak Christian , Mustafi Migdat 
Published: June 2020

Abstract
Background
Our retrospective single-center study aimed to evaluate the safety of the carotid endarterectomy (CEA) in comparison to patients with untreated asymptomatic carotid stenosis ≥60% before CABG.

Methods
This single-center retrospective study included 174 patients with asymptomatic unilateral carotid stenosis treated between 2004 and 2017 with CABG. Thereof 106 patients had CEA before cardiac surgery either by a simultaneous (n = 62) or staged (n = 44) approach. Patients with untreated carotid stenosis served as control (no-CEA group; n = 68).

Results
The mean stenosis grade was higher in the CEA group (CEA 83% (±1), no-CEA 71% (±1) p < 0.0001). The overall stroke rate was 5/174 (3%) and was due to a high incidence of stroke in the no-CEA group (CEA: 0/106 (0%); No-CEA 5/68 (7%) p = 0.0083). The overall mortality was 1% and comparable between the groups (CEA: 2/106 (2%); No-CEA 0/68 (0%) p = 0.5211). Stroke related mortality was not observed. The groups were similar regarding the incidence of myocardial infarction (p = 1.0), atrial fibrillation (p = 0.1931), delirium (p = 0.2106) and IMC/ICU stay (p = 0.1542). No significant difference in the subgroup analysis was found between the simultaneous and staged approach regarding the myocardial infarction (simultaneous: 1/62 (1%); staged: 1/44 (1%); p = 1.0).

Conclusions
CEA performed as a staged procedure in local anesthesia or a simultaneous procedure in general anesthesia, may reduce the stroke risk prior to CABG.
The Patient Activation through Community Empowerment/Engagement for Diabetes Management (PACE-D) protocol: a non-randomised controlled trial of personalised care and support planning for persons living with diabetes
Authors: Tan Wee Hian , Loh Victor Weng Keong , Venkataraman Kavita , Choong Shoon Thai , Lew Yii Jen , Sundram Meena , Tsou Keith , Tan Soon Guan , Gibbons Brent , Entwistle Vikki , Young Doris , Tai E Shyong , Yew Tong Wei 
Published: June 2020

AbstractBackgroundPersonalised care and support planning (CSP) has been shown to improve diabetes outcomes, patient experience and provider morale in the care of persons living with diabetes. However, this has not been confirmed in controlled studies. Patient Activation through Community Empowerment/Engagement for Diabetes Management (PACE-D) is a pragmatic controlled trial that evaluates the effectiveness of personalised CSP in persons living with diabetes in the public primary care setting in Singapore.MethodsTeamlet-empanelled patients with diabetes at four polyclinics are recruited for this study. Participants who attend either of the two Intervention clinics are sent their investigation results in a care planning letter (CPL) topreparethem for the CSP conversation. This conversation is facilitated by a trained CSP practitioner who engages them indiscussionof concerns, goals and action plans, anddocumentstheir plans for subsequentreview. Participants in the two Control clinics will receive standard diabetes care. Participants will complete two or more CSP conversations (Intervention) or regular consultations (Control) at the annual review visits within the 18 months of the study. The sample size is calculated at 1620 participants, with glycated haemoglobin (HbA1c) as the primary outcome measure. Secondary outcome measures include patient activation (as measured by PAM-13) and changes in healthcare utilisation and cost.DiscussionThis study is a pragmatic trial that evaluates the effectiveness of personalised CSP in persons living with diabetes in a real world setting. It promises to provide insights with regard to the implementation of this model of care in Singapore and the region.Trial registrationClinicalTrials.govIdentifierNCT04288362. Retrospectively registered on 28 February 2020.
Investigation and analysis of standardized training for residents of general practitioners of Gansu Province in China
Authors: Wang Hongjing , He Jin , Zhang Dongzhi , Wu Yue , Wang Peidong , Cai Hui 
Published: June 2020

Abstract
Background
China’s standardized training for residents of General Practitioners (GPs) is aimed at providing the postgraduate training for family doctors who will serve the primary health care institutions. The aim of this paper is to investigate the standardized training situation, satisfaction with standardized training, work situation, intention, satisfaction and attitude of GPs who have finished standardized training.

Methods
This study was undertaken in 6 training hospitals in Gansu province using a questionnaire with 45 questions.

Results
Approximately 275 residents of GPs were enrolled. Finally, 263 residents completed the questionnaire (95.64% response rate), including 133 females (50.57%) and 130 males (49.43%) with an average age of 28 years (standard deviation, 1.93 years; range, 25–36 years). Additionally, 56.65% were single and 43.35% were married. Of all subjects, 92.40% residents had obtained certification of standardized training for residents of GPs and only 39.54% residents were satisfied with monthly income during training. There were 171 oriented rural medical graduates, of whom, only 42.69% expressed the willing to continue working in the primary health care institutions after the serve time (6 years) expired. Around 86.31% of residents of GPs who had finished standardized training got jobs with more than half serving in the primary health care institutions. For medical institutions and sanitary bureau were clear about general medicine policies, only 29.96% subjects registered as GPs. Among the residents in general practice department, 68.42% were engaged in the diagnosis and treatment of common disease and frequently-occurring diseases as well as referral of patients. The percentage of residents who were satisfied with the job and income were 30.40 and 14.98%, respectively.

Conclusion
Standardized training for residents of GPs in China is gradually improving. In order to cultivate more GPs and increase their willing to serve in the primary health care institutions, it is necessary to formulate and execute better policy of GPs, publize general medicine and improve the training quality.
Hearing loss and cognitive function among Chinese older adults: the role of participation in leisure activities
Authors: Gao Jiamin , Armstrong Nicole M. , Deal Jennifer A. , Lin Frank R. , He Ping 
Published: June 2020

AbstractBackgroundHearing loss, a highly prevalent sensory impairment affecting older adults, is a risk factor for cognition decline. However, there were very limited studies on this association in low-resource countries. This study aimed to assess the association between self-reported hearing loss and cognitive decline, and whether engagement in leisure activities moderated this association among older adults in China.MethodsData were obtained from two waves of the nationally representative survey of China Longitudinal Healthy Longevity Survey (CLHLS) between 2011/12–2014. Eight thousand eight hundred forty-four individuals aged 65 years old or above with a dichotomized measure of self-reported hearing status were included. Modified Mini-Mental Examination (MMSE) was used to measure global cognition. Fixed-effects models were used to estimate whether leisure activity engagement moderated the association of self-perceived hearing loss with global cognitive change in the overall sample and sex subsamples.ResultsSelf-reported hearing loss was associated with cognitive impairment, with an odds ratio of 2.48 [1.22, 5.06]. Sex difference in the association of hearing loss and cognitive impairment was not found. Self-reported hearing loss was associated with cognitive decline, with 8% increase in risk compared with those with normal hearing. Frequent engagement in leisure activities moderated the association between hearing loss and cognitive decline for the whole and male samples.ConclusionHearing loss was associated with cognitive decline, and leisure activities engagement moderated the association among males rather than females.
Prognostic characterization of OAS1/OAS2/OAS3/OASL in breast cancer
Authors: Zhang Yujie , Yu Chaoran 
Published: June 2020

Abstract
Background
Prognostic biomarkers remain a focus in breast cancer during last decades. More reliable predictors to adequately characterize the prognosis of breast cancer are essential. The 2′-5′-oligoadenylate synthetases (OAS), composing of OAS1, OAS2, OAS3, and OAS-like (OASL), are interferon (IFN)-induced antiviral enzymes, with their prognostic roles remain to be characterized.

Methods
Prognostic values of OAS family members were assessed by multiple public available resources.

Results
High mRNA expression of OAS1 and OAS3 were correlated with worse prognosis for all breast cancer patients, whereas OAS2 was associated with favorable prognosis. The prognostic values of OAS family in different clinicopathologic subtypes were also characterized. In DNA methylation level, cg12560128 in OAS2, cg06800840 and cg26328872 in OASL showed significant prognostic values. The mRNA expression of OAS members signature in high/low risk overall survival groups was opposite to the high/low risk recurrence free survival groups. Neutrophil cell exhibited highest correlation with all OAS members in tumor immune infiltrating estimation.

Conclusions
This study provided new insight into the prognostic roles of OAS in breast cancer with potential mechanistic values.
The effect of pericolic lymph nodes metastasis beyond 10 cm proximal to the tumor on patients with rectal cancer
Authors: Yang Xuyang , Zheng Erliang , Ye Lina , Gu Chaoyang , Hu Tao , Jiang Dan , He Du , Wu Bing , Wu Qinbing , Yang Tinghan , Wei Mingtian , Meng Wenjian , Deng Xiangbing , Wang Ziqiang , Zhou Zongguang 
Published: June 2020

Abstract
Background
This study aims to determine the real incidence of pericolic lymph nodes metastasis beyond 10 cm proximal to the tumor (pPCN) and its prognostic significance in rectal cancer patients.

Methods
Consecutive patients with rectal cancer underwent curative resection between 2015 and 2017 were included. Margin distance was marked and measured in vivo and lymph nodes were harvested on fresh specimens. Clinicopathological characteristics and oncological outcomes (3-year overall survival (OS) and disease-free survival (DFS)) were analyzed between patients with pPCN and patients without pPCN (nPCN).

Results
There were 298 patients in the nPCN group and 14 patients (4.5%) in pPCN group. Baseline characteristics were balanced except more patients received preoperative or postoperative chemoradiotherapy in pPCN group. Preoperative more advanced cTNM stage (log-rank p = 0.005) and intraoperative more pericolic lymph nodes beyond 10 cm proximal to the tumor (PCNs) (log-rank p = 0.002) were independent risk factors for pPCN. The maximum short-axis diameter of mesenteric lymph nodes ≥8 mm was also contributed to predicting the pPCN. pPCN was an independent prognostic indicator and associated with worse 3-year OS (66% vs 91%, Cox p = 0.033) and DFS (58% vs 92%, Cox p = 0.012).

Conclusion
The incidence of pPCN was higher than expected. Patients with high-risk factors (cTNM stage III or more PCNs) might get benefits from an extended proximal bowel resection to avoid residual positive PCNs.
Study protocol of the HYPER-LIV01 trial: a multicenter phase II, prospective and randomized study comparing simultaneous portal and hepatic vein embolization to portal vein embolization for hypertrophy of the future liver remnant before major hepatectomy for colo-rectal liver metastases
Authors: Deshayes Emmanuel , Piron Lauranne , Bouvier Antoine , Lapuyade Bruno , Lermite Emilie , Vervueren Laurent , Laurent Christophe , Pinaquy Jean-Baptiste , Chevallier Patrick , Dohan Anthony , Rode Agnès , Sengel Christian , Guillot Chloé , Quenet François , Guiu Boris 
Published: June 2020

Abstract
Background
In patients undergoing major liver resection, portal vein embolization (PVE) has been widely used to induce hypertrophy of the non-embolized liver in order to prevent post-hepatectomy liver failure. PVE is a safe and effective procedure, but does not always lead to sufficient hypertrophy of the future liver remnant (FLR). Hepatic vein(s) embolization has been proposed to improve FLR regeneration when insufficient after PVE. The sequential right hepatic vein embolization (HVE) after right PVE demonstrated an incremental effect on the FLR but it implies two different procedures with no time gain as compared to PVE alone.
We have developed the so-called liver venous deprivation (LVD), a combination of PVE and HVE during the same intervention, to optimize the phase of liver preparation before surgery. The main objective of this randomized phase II trial is to compare the percentage of change in FLR volume at 3 weeks after LVD or PVE.

Methods
Patients eligible to this multicenter prospective randomized phase II study are subjects aged from 18 years old suffering from colo-rectal liver metastases considered as resectable and with non-cirrhotic liver parenchyma. The primary objective is the percentage of change in FLR volume at 3 weeks after LVD or PVE using MRI or CT-Scan. Secondary objectives are assessment of tolerance, post-operative morbidity and mortality, post-hepatectomy liver failure, rate of non-respectability due to insufficient FLR or tumor progression, per-operative difficulties, blood loss, R0 resection rate, post-operative liver volume and overall survival. Objectives of translational research studies are evaluation of pre- and post-operative liver function and determination of biomarkers predictive of liver hypertrophy. Sixty-four patients will be included (randomization ratio 1:1) to detect a difference of 12% at 21 days in FLR volumes between PVE and LVD.

Discussion
Adding HVE to PVE during the same procedure is an innovative and promising approach that may lead to a rapid and major increase in volume and function of the FLR, thereby increasing the rate of resectable patients and limiting the risk of patient’s drop-out.

Trial registration
This study was registered on clinicaltrials.gov on 15th February 2019 (NCT03841305).
Thickness profiles of the corneal epithelium along the steep and flat meridians of astigmatic corneas after orthokeratology
Authors: Zhou Jiaqi , Xue Feng , Zhou Xingtao , Naidu Rajeev Krishnan , Qian Yishan 
Published: June 2020

Abstract
Background
The aim of this study was to investigate the changes in corneal epithelial thickness along the principle meridians of astigmatic corneas after six months of overnight spherical myopic orthokeratology (OK) lens wear.

Methods
This is a prospective study. Fifty-seven subjects with up to 1.50 diopters (D) of corneal toricity wore spherical OK lenses for 6 months. Evaluations of OK lens fit, visual acuity, refractions and corneal toricity (CT) were performed. Fourier-domain optical coherence tomography (FD-OCT) was conducted to measure the corneal epithelial thickness (ET) along the principle meridians of corneal toricity over a diameter of 6 mm. The means of △ET of the same diameter at individual meridians (△ETSm and △ETFm) were calculated and compared.

Results
Visual acuity and refraction improved significantly after OK lens wear. △ETFm thinned more than △ETSm (P = 0.027) at 1.5 mm in radius. △ETSm thickened more than △ETFm at 2.5 mm (P = 0.019) and 3.0 mm (P = 0.036).∣△ETSm - △ETFm∣ were significantly correlated with the baseline central CT at 2.0 mm, 2.5 mm and 3.0 mm. ∣△ETSm - △ETFm∣was significantly correlated with the baseline peripheral CT at 2.5 mm.

Conclusions
Overnight wear of spherical OK lenses resulted in differential changes in the thickness profiles of the corneal epithelium between the steep and flat meridians in eyes with corneal toricity.
Combination of Ranibizumab with macular laser for macular edema secondary to branch retinal vein occlusion: one-year results from a randomized controlled double-blind trial
Authors: Song Shuang , Yu Xiaobing , Zhang Peng , Gu Xiaoya , Dai Hong 
Published: June 2020

Abstract
Background
It is not clear whether macular laser combined with anti-vascular endothelial growth factor (VEGF) can reduce the number of anti-VEGF injections in the treatment of macular edema (ME) secondary to branch retinal vein occlusion (BRVO). Our study aimed to investigate the effects of intravitreal ranibizumab with or without macular laser for ME secondary to BRVO and its associated number of anti-VEGF injections.

Methods
This is a prospective, randomized, double-blind, monocentric trial.80 patients were enrolled and 64 patients fulfilled the study requirements. All patients received a minimum of 3 initial monthly ranibizumab injections, pro re nata (PRN) dosing thereafter VA and CRT stabilization criteria-driven PRN treatment. Laser was given 7 days after third ranibizumab injection in ranibizumab with laser group. The follow-up time of this study was 1 year. Best corrected visual acuity (BCVA) improvement, central retinal thickness (CRT) reduction and number of injections of patients were compared between two groups. T-test, non-parametric Wilcoxon test and chis-square tests were adopted for between-group comparisons.

Results
Thirty patients received intravitreal ranibizumab 0.5 mg alone and 34 patients received intravitreal ranibizumab 0.5 mg with macular laser. At 52 week, BCVA increased significantly and CRT decreased significantly in both groups (P < 0.001). However, there was no significant difference in BCVA improvement with baseline BCVA adjusted (p = 0.5226), and in the CRT reduction (P = 0.4552) between two groups after 52 weeks. There was also no significant difference in the number of injections between the two groups. (P = 0.0756). There was also no significant difference between ischemic and non-ischemic groups in BCVA improvement, CRT reduction and number of injections (P > 0.05).

Conclusions
Our study suggests that ranibizumab combined with macular laser is effective in the treatment of ME secondary to BRVO after 1 year of treatment with 3 + PRN regimen. However, combination of macular grid photocoagulation showed no beneficial anatomical or functional effect during follow-up period, nor did it reduce the number of ranibizumab injections, either in ischemic group or non-ischemic group. We suggest that there is no need to combine macular grid photocoagulation in the treatment of ME secondary to BRVO in the future.

Trial registration
Clinical Trials NCT03054766. https://register.clinicaltrials.gov.Prospectively registered.