bluuebunny/crossref_metadata_2025_split huggingface dataset:
Host plant adaptation in the polyphagous whitefly, Trialeurodes vaporariorum, is associated with transcriptional plasticity and altered sensitivity to insecticides
Authors: Pym Adam , Singh Kumar Saurabh , Nordgren Åsa , Davies T. G. Emyr , Zimmer Christoph T. , Elias Jan , Slater Russell , Bass Chris 
Published: December 2019

AbstractBackgroundThe glasshouse whitefly,Trialeurodes vaporariorum, is a damaging crop pest and an invasive generalist capable of feeding on a broad range of host plants. As such this species has evolved mechanisms to circumvent the wide spectrum of anti-herbivore allelochemicals produced by its host range.T. vaporariorumhas also demonstrated a remarkable ability to evolve resistance to many of the synthetic insecticides used for control.ResultsTo gain insight into the molecular mechanisms that underpin the polyphagy ofT. vaporariorumand its resistance to natural and synthetic xenobiotics, we sequenced and assembled a reference genome for this species. Curation of genes putatively involved in the detoxification of natural and synthetic xenobiotics revealed a marked reduction in specific gene families between this species and another generalist whitefly,Bemisia tabaci. Transcriptome profiling ofT. vaporariorumupon transfer to a range of different host plants revealed profound differences in the transcriptional response to more or less challenging hosts. Large scale changes in gene expression (> 20% of genes) were observed during adaptation to challenging hosts with a range of genes involved in gene regulation, signalling, and detoxification differentially expressed. Remarkably, these changes in gene expression were associated with significant shifts in the tolerance of host-adaptedT. vaporariorumlines to natural and synthetic insecticides.ConclusionsOur findings provide further insights into the ability of polyphagous insects to extensively reprogram gene expression during host adaptation and illustrate the potential implications of this on their sensitivity to synthetic insecticides.
The Medicago truncatula nodule identity gene MtNOOT1 is required for coordinated apical-basal development of the root
Authors: Shen Defeng , Kulikova Olga , Guhl Kerstin , Franssen Henk , Kohlen Wouter , Bisseling Ton , Geurts René 
Published: December 2019

Abstract
Background
Legumes can utilize atmospheric nitrogen by hosting nitrogen-fixing bacteria in special lateral root organs, called nodules. Legume nodules have a unique ontology, despite similarities in the gene networks controlling nodule and lateral root development. It has been shown that Medicago truncatula NODULE ROOT1 (MtNOOT1) is required for the maintenance of nodule identity, preventing the conversion to lateral root development. MtNOOT1 and its orthologs in other plant species -collectively called the NOOT-BOP-COCH-LIKE (NBCL) family- specify boundary formation in various aerial organs. However, MtNOOT1 is not only expressed in nodules and aerial organs, but also in developing roots, where its function remains elusive.

Results
We show that Mtnoot1 mutant seedlings display accelerated root elongation due to an enlarged root apical meristem. Also, Mtnoot1 mutant roots are thinner than wild-type and are delayed in xylem cell differentiation. We provide molecular evidence that the affected spatial development of Mtnoot1 mutant roots correlates with delayed induction of genes involved in xylem cell differentiation. This coincides with a basipetal shift of the root zone that is susceptible to rhizobium-secreted symbiotic signal molecules.

Conclusions
Our data show that MtNOOT1 regulates the size of the root apical meristem and vascular differentiation. Our data demonstrate that MtNOOT1 not only functions as a homeotic gene in nodule development but also coordinates the spatial development of the root.
How heterogeneous are MSM from Brazilian cities? An analysis of sexual behavior and perceived risk and a description of trends in awareness and willingness to use pre-exposure prophylaxis
Authors: Torres Thiago S. , Marins Luana M. S. , Veloso Valdilea G. , Grinsztejn Beatriz , Luz Paula M. 
Published: December 2019

AbstractBackgroundBrazil has the largest population of individuals living with HIV/AIDS in Latin America, with a disproportional prevalence of infection among gays, bisexuals and other men who have sex with men (MSM). Of relevance to prevention and treatment efforts, Brazilian MSM from different regions may differ in behaviors and risk perception related to HIV.MethodsWe report on MSM living in 29 different cities: 26 Brazilian state capitals, the Federal District and two large cities in São Paulo state assessed in three web-based surveys (2016–2018) advertised on Grindr, Hornet and Facebook. Using logistic regression models, we assessed the association of risk behavior with HIV perceived risk as well as factors associated with high-risk behavior.ResultsA total of 16,667 MSM completed the survey. Overall, MSM from the North and Northeast were younger, more black/mixed-black, of lower income and lower education compared to MSM from the South, Southeast and Central-west. Though 17% had never tested for HIV (with higher percentages in the North and Northeast), condomless receptive anal sex (previous 6 months) and high-risk behavior as per HIV Incidence Risk scale for MSM were observed for 41 and 64%, respectively. Sexual behavior and HIV perceived risk had low variability by city and high-risk behavior was strongly associated with high HIV perceived risk. Younger age, being gay/homosexual, having a steady partner, binge drinking, report of sexually transmitted infection (STI) and ever testing for HIV were associated with increased odds of high-risk behavior. Awareness and willingness to use PrEP increased from 2016 to 2018 in most cities.ConclusionsOverall, MSM socio-demographic characteristics were heterogeneous among Brazilian cities, but similarities were noted among the cities from the same administrative region with a marked exception of the Federal District not following the patterns for the Central-West. Combination HIV prevention is most needed among young men who self-identify as gay/homosexual, report binge drinking or prior STI.
Time-lapse angiography of the ocular fundus: a new video-angiography
Authors: Gu Chufeng , Chen Jili , Su Tong , Qiu Qinghua 
Published: December 2019

Abstract
Background
Ocular fundus angiography is an indispensable component of the tests utilized for fundus diseases. Dynamic angiography results can provide additional information; however, many difficulties remain. In this study, we introduce a modified method, time-lapse angiography (TLA), to dynamically present imaging results.

Methods
TLA, combining time-lapse photography and fundus angiography (using Heidelberg retina angiography II, Germany), includes pre-photographing and post- photosynthesis and ultimately produces a video that is approximately 15 s in length.

Results
Four typical videos in the article showed the characteristics of TLA, including a short and rapid but continuous and integral presentation, highly valid information, high definition, etc.

Conclusions
TLA is beneficial for the diagnosis of diseases and the assessment of progression and is convenient for peer communication, patient interpretation, and student education. The application of time-lapse photography in ocular fundus angiography is a monumental and innovative attempt.
Fertility-sparing surgery and oncologic outcome among patients with early-stage ovarian cancer ~propensity score- matched analysis~
Authors: Kajiyama Hiroaki , Suzuki Shiro , Yoshikawa Nobuhisa , Kawai Michiyasu , Mizuno Kimio , Yamamuro Osamu , Nagasaka Tetsuro , Shibata Kiyosumi , Kikkawa Fumitaka 
Published: December 2019

Abstract
Background
The aim of this study was to investigate how much the risks of recurrence and death are increased as a consequence of selecting fertility-sparing surgery (FSS) in young women with epithelial ovarian cancer (EOC).

Methods
After a central pathological review and search of the medical records from 14 collaborating hospitals, a non-randomized, observational cohort study was conducted between 1987 and 2015, including 1183 women with stage I EOC. Finally, a total of 285 patients with stage I EOC at reproductive age were recruited. Oncologic outcomes were compared between the FSS (N = 101) and radical surgery (RS) group (N = 184) using a propensity score (PS)-matching technique to adjust for relevant risk factors: the age, substage, histological type, grade, CA125 values, ascites cytology, ascites volume, and chemotherapy.

Results
During 66.0 months (median) of follow-up, 42 patients (14.7%) developed recurrence, and 31 patients (10.9%) died. In the original cohort, there was no significant difference in overall survival (OS) or recurrence-free survival (RFS) between the FSS and RS groups {Log-rank: OS (P = 0.838), RFS (P = 0.377)}. In the PS-matched cohort after adjustment for multiple clinicopathologic factors, there was no significant difference in RFS or OS between the FSS and RS groups {RFS (FSS vs. RS), HR: 1.262 (95% CI: 0.559–2.852), P = 0. 575; OS (FSS vs. RS), HR: 1.206 (95% CI: 0.460–3.163), P = 0.704}.

Conclusions
After adjustment for clinicopathologic factors, FSS in itself may not worsen the oncologic outcome in young women with early-stage EOC. A large-scale clinical study is necessary to validate the findings.
Systemic reaction to and interference with urine protein measurements after intravenous fluorescein injection
Authors: Bouman Annemieke Clementine , de Kruijf Damaris , Emmen Judith Maria Antonia , Rettig Thijs Clemens David , Groot Maria Jolande Charlotte Kooijman-de , Faes Miriam Christina 
Published: December 2019

Abstract
Background
Fluorescein angiography is an important and frequently used diagnostic tool in ophthalmological practice. In this case report we describe a patient who experienced an anaphylactic reaction after the injection of fluorescein. Furthermore, we report an interference with laboratory testing by fluorescein in this patient and summarize the literature on this topic.

Case presentation
An 86-year old Caucasian woman undergoing fluorescein angiography due to suspected peripapillary neovascularizations collapsed after the injection of fluorescein. The patient developed an anaphylactic reaction. With fluid resuscitation and oxygen therapy, the patient regained consciousness after a few minutes. The patient was admitted to the geriatric ward for observation, and routine blood and urine tests were performed. Urine protein concentration appeared to be falsely increased as a consequence of disturbance of the laboratory analysis by the presence of fluorescein.

Conclusions
Serious complications can occur with fluorescein angiography, such as an anaphylactic reaction. In the case of anaphylaxis appropriate supportive measures including the use of oxygen and epinephrine (e.g. EpiPen), should be available to prevent morbidity and mortality from this test. Furthermore, these potential complications should be taken into consideration when choosing the healthcare setting for fluorescein angiography, such as the immediate availability of an acute medical team.
Several studies have demonstrated the interference of laboratory analyses by fluorescein. The majority of these studies were published 10 to 30 years ago. By presenting this case, the authors hope to bring renewed attention to this phenomenon among clinicians, as falsely increased or decreased laboratory values can result in unnecessary diagnostics and/or therapy.
Participation factors for asthma education programs - a cross sectional survey
Authors: Atmann Oxana , Linde Klaus , Werner Christoph , Dorn Ulrike , Schneider Antonius 
Published: December 2019

Abstract
Background
Although the impact of asthma education on important outcomes (e.g. emergency visits) has been well established, only an estimated quarter of asthma patients in Germany have received patient education yet. The aim of the study was to identify patient factors that could increase participation in asthma education programs.

Methods
This cross-sectional study investigated participation factors and differences between trained (n = 64) and untrained (n = 65) asthma patients from a large outpatient center in Germany. The survey included answers to asthma-related questions and open questions on patient education as well as such about knowledge of health literacy and eHealth.

Results
Mean age of participants was 55 ± 19 years and 61% were female. Trained patients were more likely to participate in disease management programs (odds ratio (OR) 6.85; 95%CI 2.17–21.59), were more frequently non-smokers (OR 0.07; 95%CI 0.01–0.85) and more often had an asthma action plan (OR 20.2; 1.55–263.41). Open questions’ analysis of untrained asthma patients revealed that patients felt they were not adequately informed about asthma education (37%). About one-third of all patients (27%) showed openness to online asthma education. Analysis of HL and eHealth showed no difference between the groups.

Conclusion
Untrained asthma patients should be informed even more intensively by their physicians about the importance and value of asthma education. Asthma education does not seem to benefit patients’ health literacy. Online asthma education is of interest to approximately one-third of asthma patients. This should be motivation to develop and implement online asthma education concepts.
Can clinical ethics committees be legitimate actors in bedside rationing?
Authors: Magelssen Morten , Bærøe Kristine 
Published: December 2019

Abstract
Background
Rationing and allocation decisions at the clinical level – bedside rationing – entail complex dilemmas that clinicians and managers often find difficult to handle. There is a lack of mechanisms and aids for promoting fair decisions, especially in hard cases. Reports indicate that clinical ethics committees (CECs) sometimes handle cases that involve bedside rationing dilemmas. Can CECs have a legitimate role to play in bedside rationing?

Main text
Aided by two frameworks for legitimate priority setting, we discuss how CECs can contribute to enhanced epistemic, procedural and political legitimacy in bedside rationing decisions. Drawing on previous work we present brief case vignettes and outline several potential roles that CECs may play, and then discuss whether these might contribute to rationing decisions becoming legitimate. In the process, key prerequisites for such legitimacy are identified. Legitimacy places demands on aspects such as the CEC’s deliberation process, the involvement of stakeholders, transparency of process, the opportunity to appeal decisions, and the competence of CEC members. On these conditions, CECs can help strengthen the legitimacy of some of the rationing decisions clinicians and managers have to make.

Conclusions
On specified conditions, CECs can have a well-justified advisory role to play in order to enhance the legitimacy of bedside rationing decisions.
Statistical and spectral analysis of ECG signal towards achieving non-invasive blood glucose monitoring
Authors: Tobore Igbe , Li Jingzhen , Kandwal Abhishek , Yuhang Liu , Nie Zedong , Wang Lei 
Published: December 2019

Abstract
Background
Globally, the cases of diabetes mellitus (diabetes) have increased in the past three decades, and it is recorded as one of the leading cause of death. This epidemic is a metabolic condition where the body cannot regulate blood glucose, thereby leading to abnormally high blood sugar. Genetic condition plays a significant role to determine a person susceptibility to the condition, a sedentary lifestyle and an unhealthy diet are behaviour that supports the current global epidemic. The complication that arises from diabetes includes loss of vision, peripheral neuropathy, cardiovascular complications and so on. Victims of this condition require constant monitoring of blood glucose which is done by the pricking of the finger. This procedure is painful, inconvenient and can lead to disease infection. Therefore, it is important to find a way to measure blood glucose non-invasively to minimize or eliminate the disadvantages encountered with the usual monitoring of blood glucose.

Method
In this paper, we performed two experiments on 16 participants while electrocardiogram (ECG) data was continuously captured. In the first experiment, participants are required to consume 75 g of anhydrous glucose solution (oral glucose tolerance test) and the second experiment, no glucose solution was taken. We explored statistical and spectral analysis on HRV, HR, R-H, P-H, PRQ, QRS, QT, QTC and ST segments derived from ECG signal to investigate which segments should be considered for the possibility of achieving non-invasive blood glucose monitoring. In the statistical analysis, we examined the pattern of the data with the boxplot technique to reveal the change in the statistical properties of the data. Power spectral density estimation was adopted for the spectral analysis to show the frequency distribution of the data.

Results
HRV segment obtained a statistical score of 81% for decreasing pattern and HR segment have the same statistical score for increasing pattern among the participants in the first quartile, median and mean properties. While ST segment has a statistical score of 81% for decreasing pattern in the third quartile, QT segment has 81% for increasing pattern for the median. From a total change score of 6, ST, QT, PRQ, P-H, HR and HRV obtained 4, 5, 4, 5 and 6 respectively. For spectral analysis, HRV and HR segment scored 81 and 75% respectively. ST, QT, PRQ have 75, 62 and 68% respectively.

Conclusions
The results obtained demonstrate that HR, HRV, PRQ, QT and ST segments under a normal, healthy condition are affected by glucose and should be considered for modelling a system to achieve the possibility of non-invasive blood glucose measurement with ECG.
Inter/intra-frame constrained vascular segmentation in X-ray angiographic image sequence
Authors: Song Shuang , Du Chenbing , Chen Ying , Ai Danni , Song Hong , Huang Yong , Wang Yongtian , Yang Jian 
Published: December 2019

Abstract
Background
Automatic vascular segmentation in X-ray angiographic image sequence is of crucial interest, for instance, for better quantifying coronary arteries in diagnostic and interventional procedures.

Methods
A novel inter/intra-frame constrained vascular segmentation method is proposed to automatically segment vessels in coronary X-ray angiographic image sequence. First, a morphological filter operator is applied to remove structures undergoing the respiratory motion from the original image sequence. Second, an inter-frame constrained robust principal component analysis (RPCA) is utilized to remove the quasi-static structures from the image sequence. Third, an intra-frame constrained RPCA is employed to smooth the final extracted vascular sequence. Fourth, a multi-feature fusion is designed to improve the vascular contrast and the final vascular segmentation is realized by thresholding-based method.

Results
Experiments are conducted on 22 clinical X-ray angiographic image sequences. The global and local contrast-to-noise ratio of the proposed method are 6.6344 and 4.2882, respectively. And the precision, sensitivity and F1 value are 0.7378, 0.7960 and 0.7658, respectively. It demonstrates that our method is effective and robust for vascular segmentation from image sequence.

Conclusions
The proposed method is effective to remove non-vascular structures, reduce motion artefacts and other non-uniform illumination caused noises. Also, the proposed method is online which can just process one image per time without re-optimizing the model.
Influencing factors of physicians’ prescription behavior in selecting essential medicines: a cross-sectional survey in Chinese county hospitals
Authors: Zhou Xin , Zhang Xueting , Yang Linsheng , Hu Xu , Shen Aizong , Huang Xiaohui , Xie Xuefeng 
Published: December 2019

Abstract
Background
To explore the key factors affecting prescription practices of essential medicines in Chinese county hospital. National essential medicine policy (NEMP) plays important roles in health care system, especially in developing countries. As a fundamental component in the Chinese health system reform, NEMP was implemented in primary health care institutions during the first stage of reform. As it is rolled out, priority usage and zero-mark-up policy of essential medicines are to be applied in every government-run healthcare institution. However, the intention and influence factors of physicians on priority selecting essential medicine remains unclear.

Methods
Based on the theory of planned behavior, a cross-sectional questionnaire survey was conducted to analyze physicians’ intention, attitude, subjective norms (SNs) and perceived behavioral control (PBC) on prescrictions and their actual behavior on selection of essential medicines.

Results
Two hundred eighty-two physicians participated in the structural questionnaire interview. The final structural equation model reflected influencing factors affecting physicians’ prescribing behavior (χ2/df = 1.32, GFI = 0.99, IFI = 0.99). Structural equation model analysis showed that attitude, other influencers and institutional environment, and PBC significantly affected behavioral intention. However, the control extent of cognition behavior of physicians prescribing had no significant positive effect on the priority usage of essential medicines.

Conclusion
Investigation results demonstrate physicians are unaware of NEMP design and implementation plans. To help enhance rational use of essential medicines we suggest educating physicians on the value of NEMP, and integrating the drug shortage report into the essential medicine (EM) bidding system seamless communication with pharmaceutical manufacturers’ credit information system.
Explaining the successes and failures of tuberculosis treatment programs; a tale of two regions in rural eastern Uganda
Authors: Izudi Jonathan , Tamwesigire Imelda. K. , Bajunirwe Francis 
Published: December 2019

Abstract
Background
Optimally performing tuberculosis (TB) programs are characterized by treatment success rate (TSR) of at least 90%. In rural eastern Uganda, and elsewhere in sub Saharan Africa, TSR varies considerably across district TB programs and the reasons for the differences are unclear. This study explored factors associated with the low and high TSR across four districts in rural eastern Uganda.

Methods
We interviewed District TB and Leprosy Supervisors, Laboratory focal persons, and health facility TB focal persons from four districts in eastern Uganda as key informants. Interviews were audio recorded, transcribed verbatim, and imported into ATLAs.ti where thematic content analysis was performed and results were summarized into themes.

Results
The emerging themes were categorized as either facilitators of or barriers to treatment success. The emerging facilitators prevailing in the districts with high rates of treatment success were using data to make decisions and design interventions, continuous quality improvement, capacity building, and prioritization of better management of people with TB. The barriers common in districts with low rates of treatment success included lack of motivated and dedicated TB focal persons, scarce or no funding for implementing TB activities, and a poor implementation of community-based directly observed therapy short course.

Conclusion
This study shows that several factors are associated with the differing rates of treatment success in rural eastern Uganda. These factors should be the focus for TB control programs in Uganda and similar settings in order to improve rates of treatment success.