bluuebunny/crossref_metadata_2025_split huggingface dataset:
Disrupted brain network dynamics and cognitive functions in methamphetamine use disorder: insights from EEG microstates
Authors: Chen Tianzhen , Su Hang , Zhong Na , Tan Haoye , Li Xiaotong , Meng Yiran , Duan Chunmei , Zhang Congbin , Bao Juwang , Xu Ding , Song Weidong , Zou Jixue , Liu Tao , Zhan Qingqing , Jiang Haifeng , Zhao Min 
Published: June 2020

AbstractBackgroundDysfunction in brain network dynamics has been found to correlate with many psychiatric disorders. However, there is limited research regarding resting electroencephalogram (EEG) brain network and its association with cognitive process for patients with methamphetamine use disorder (MUD). This study aimed at using EEG microstate analysis to determine whether brain network dynamics in patients with MUD differ from those of healthy controls (HC).MethodsA total of 55 MUD patients and 27 matched healthy controls were included for analysis. The resting brain activity was recorded by 64-channel electroencephalography. EEG microstate parameters and intracerebral current sources of each EEG microstate were compared between the two groups. Generalized linear regression model was used to explore the correlation between significant microstates with drug history and cognitive functions.ResultsMUD patients showed lower mean durations of the microstate classes A and B, and a higher global explained variance of the microstate class C. Besides, MUD patients presented with different current density power in microstates A, B, and C relative to the HC. The generalized linear model showed that MA use frequency is negatively correlated with the MMD of class A. Further, the generalized linear model showed that MA use frequency, scores of Two-back task, and the error rate of MA word are correlated with the MMD and GEV of class B, respectively.ConclusionsIntracranial current source densities of resting EEG microstates are disrupted in MUD patients, hence causing temporal changes in microstate topographies, which are correlated with attention bias and history of drug use.
Accessibility of basic paediatric emergency care in Malawi: analysis of a national facility census
Authors: Johansson Emily White , Lindsjö Cecilia , Weiss Daniel J. , Nsona Humphreys , Selling Katarina Ekholm , Lufesi Norman , Hildenwall Helena 
Published: June 2020

Abstract
Background
Emergency care is among the weakest parts of health systems in low-income countries with both quality and accessibility constraints. Previous studies estimated accessibility to surgical or emergency care based on population travel times to nearest hospital with no assessment of hospital readiness to provide such care. We analysed a Malawi national facility census with comprehensive inventory audits and geocoded facility locations to identify hospitals equipped to provide basic paediatric emergency care with estimated travel times to these hospitals from non-equipped facilities and in relation to Malawi’s population distribution.

Methods
We analysed a Malawi national facility census in 2013–2014 to identify hospitals equipped to manage critically ill children according to an extended version of WHO Emergency Triage, Assessment and Treatment (ETAT) guidelines. These guidelines include 25 components including staff, transport, equipment, diagnostics, medications, fluids, feeds and consumables that defined an emergency-equipped hospital in our study. We estimated travel times to emergency-equipped hospitals from non-equipped facilities and relative to population distributions using geocoded facility locations and an established accessibility mapping approach using global road network datasets from OpenStreetMap and Google.

Results
Four (3.5, 95% CI: 1.3–8.9) of 116 Malawi hospitals were emergency-equipped. Least available items were nasogastric tubes in 34.5% of hospitals (95% CI: 26.4–43.6), blood typing services (40.4, 95% CI: 31.9–49.6), micro nebulizers (50.9, 95% CI: 41.9–60.0), and radiology (54.2, 95% CI: 45.1–63.0). Nationally, the median travel time from non-equipped facilities to the nearest emergency-equipped hospital was 73 min (95% CI: 67–77) ranging 1–507 min. Approximately one-quarter (27%) of Malawians lived over 120 min from an emergency-equipped hospital with significantly better accessibility in Central than North and South regions (16% vs. 38 and 35%, p < 0.001).

Conclusions
There are unacceptable deficiencies in accessibility of basic paediatric emergency care in Malawi. Reliable supply chains for essential drugs and commodities are needed, particularly nasogastric tubes, asthma drugs and blood, along with improved capacity for time-sensitive referral. Further child mortality reductions will require substantial investments to expand basic paediatric emergency care into all Malawi hospitals for better managing critically ill children at highest mortality risk.
A case of torsades de pointes induced by the third-generation EGFR-TKI, osimertinib combined with moxifloxacin
Authors: Bian Shuang , Tang Xiaomiao , Lei Wei 
Published: June 2020

Abstract
Background
Torsade de pointes (TdP) is a malignant arrhythmia that can be induced by QT internal prolongation due to a variety of factors. Here we report an elderly patient with advanced non-small cell lung cancer (NSCLC) had sudden TdP during hospitalization, which was caused by multiple factors such as osimertinib, moxifloxacin and patient self-factors.

Case presentation
An 85-year-old man with advanced NSCLC with brain andbone metastasis was initially treated with gefitinib targeted therapy. After 4 months treatment, the patient developed drug resistance and a second genetic testing revealed that the T790M mutation was positive. And the patient was then changed to targeted therapy with osimertinib, followed by adverse reactions of varying severity such as diarrhea, electrolyte imbalance, decreased cardiac function, leukopenia, and prolonged QTc interval. Six months after the administration of osimertinib, the patient was admitted to the hospital, chest CT showed the lesion progressed again, and during which hospital-acquired infection occurred. After concomitant use of moxifloxacin, the patient had sudden TdP, and finally died of this cardiac event.

Conclusions
It is suggested that clinicians need to identify patients with high risk factors of TdP, and consider comprehensively in concomitant medication to avoid such events to the greatest extent.
Fasting in diabetes treatment (FIT) trial: study protocol for a randomised, controlled, assessor-blinded intervention trial on the effects of intermittent use of a fasting-mimicking diet in patients with type 2 diabetes
Authors: van den Burg Elske L. , Schoonakker Marjolein P. , van Peet Petra G. , van den Akker-van Marle M. Elske. , Willems van Dijk Ko , Longo Valter D. , Lamb Hildo J. , Numans Mattijs E. , Pijl Hanno 
Published: June 2020

Abstract
Background
Caloric restriction is an effective way to treat Type 2 diabetes (T2D). However, chronic and severe restriction of food intake is difficult to sustain and is known to promote slower metabolism. Intermittent and frequent fasting can exert similar metabolic effects, but may be even more challenging for most patients. A fasting-mimicking diet (FMD) is low in calories, sugars and proteins, but includes relatively high levels of plant based complex carbohydrates and healthy fats. The metabolic effects of such a diet mimic the benefits of water-only fasting. The effects of a FMD applied periodically in T2D patients are still unknown. The Fasting In diabetes Treatment (FIT) trial was designed to determine the effect of intermittent use (5 consecutive days a month during a year) of a FMD in T2D patients on metabolic parameters and T2D medication use compared to usual care.

Methods
One hundred T2D patients from general practices in the Netherlands with a BMI ≥ 27 kg/m2, treated with lifestyle advice only or lifestyle advice plus metformin, will be randomised to receive the FMD plus usual care or usual care only. Primary outcomes are HbA1c and T2D medication dosage. Secondary outcomes are anthropometrics, blood pressure, plasma lipid profiles, quality of life, treatment satisfaction, metabolomics, microbiome composition, MRI data including cardiac function, fat distribution and ectopic fat storage, cost-effectiveness, and feasibility in clinical practice.

Discussion
This study will establish whether monthly 5-day cycles of a FMD during a year improve metabolic parameters and/or reduce the need for medication in T2D. Furthermore, additional health benefits and the feasibility in clinical practice will be measured and a cost-effectiveness evaluation will be performed.

Trial registration
The trial was registered on ClinicalTrials.gov. Identifier: NCT03811587. Registered 21th of January, 2019; retrospectively registered.
An alternative for proteinase K-heat-sensitive protease from fungus Onygena corvina for biotechnology: cloning, engineering, expression, characterization and special application for protein sequencing
Authors: Skowron Piotr M. , Krefft Daria , Brodzik Robert , Kasperkiewicz Paulina , Drag Marcin , Koller Klaus-Peter 
Published: June 2020

Abstract
Background
A neutral, heat-sensitive serine protease (NHSSP) originating from the feather-degrading fungus Onygena corvina (O. corvina) was described and defined as an alkaline serine protease of the subtilisin type S8 family, exhibiting an enzymatic activity at neutral pH. Generally, broad specificity proteases, such as proteinase K or trypsin, have found numerous applications in research and biotechnology.

Results
We report the cloning and expression in the yeast PichiaPink™ system, as well as purification, and characterization of the NHSSP. Recombinant, His6-tagged NHSSP was efficiently expressed from an optimized, synthetic gene and purified using a simple protocol based on ammonium sulfate fractionation and hydrophobic interaction chromatography. The enzyme shows atypical C-terminal processing, the coded preproprotein undergoes signal peptide removal and maturation through the clipping of a propeptide section and 10 amino acids (aa) from the C-terminus, including the His6-tag. The deletion variant has been constructed, devoid of the C-terminal ORF segment, thus eliminating the need for C-terminal processing. Both NHSSP variants exhibit very similar enzymatic characteristics. The purified enzymes were characterized to determine the optimal proteolytic conditions. We revealed that the mature NHSSP is reproducibly active over a wide pH range from neutral to mild acidic (pH of 5.0 to 8.5), with an optimum at pH 6.8, and at temperatures of 15 to 50 °C with an optimum at 38–42 °C. Interestingly, we demonstrated that the protease can be fully deactivated by a moderate increase in temperature of about 15 °C from the optimum to over 50 °C. The protease was partially sensitive to serine protease inhibitors, and not inhibited by chelating or reducing agents and detergents. SDS induced autolysis of NHSSP, which points to a high stimulation of its proteolytic activity.

Conclusions
The NHSSP was produced as a recombinant protein with high efficiency. Compared to proteinase K, the most common serine protease used, NHSSP shows an approx. twofold higher specific activity. Protein sequencing can be a valuable technical application for the protease. The protein coverage is significantly higher in comparison to trypsin and reaches about 84–100% for β-lactoglobulin (BLG), antibody (mAb) light and heavy chains. Furthermore, the option to perform digestions at neutral to slightly acidic pH-values down to pH 5.0 avoids modification of peptides, e.g. due to deamidation.
1H-31P home-built solid-state NMR probe with a scroll coil for 400-MHz NB magnet for biological lossy sample
Authors: Jeong Ji-Ho , Kim Minseon , Son Jinyoung , Kim Yongae 
Published: June 2020

AbstractPhosphorus is one of the most important constituents of human biofilms, in particular lipid bilayer packing, phase transition (gel phase, physiological liquid crystal phase, ripple phase, non-biphasic), lipid head group orientation/mechanics, and pure lipid bilayers. Phosphorus observations in biofilms play an important role in the study of the interaction of many types of proteins and biofilms in the human body. The design and construction of a 1H-31P double resonance probe with a scroll coil for solid-state NMR experiment are introduced. For good efficiency at the relatively high frequency, minimal RF sample heating during the experiment with a lossy sample, and a wide range of tuning frequency, this probe adapted the low inductance of a scroll coil. The 31P NMR spectra obtained on the biological lossy sample were used to demonstrate the possibility for monitoring the protein dynamics on biomembrane mimetic system and phase change of phospholipid.
Fire and distance from unburned forest influence bird assemblages in Southern Andean Yungas of Northwest Argentina: a case study
Authors: Morales Adriana Marisel , Politi Natalia , Rivera Luis Osvaldo , Vivanco Constanza Guadalupe , Defossé Guillermo Emilio 
Published: June 2020

Abstract
Background
Wildfires affect vegetation structure, functions, and other attributes of forest ecosystems. Among these attributes, bird assemblages may be influenced by the distance from undisturbed to fire-disturbed forests. Information about this influence is essential for designing management plans aimed at conserving birds’ diversity in undisturbed forests, which contributes to their sustainability. In Northwest Argentina, timber extraction and man-caused fires threaten the sustainability of Southern Andean Yungas forests. In this region, we evaluated, in relation to a reference unburned forest, the effects of close and distant fire-disturbed patches on bird assemblages, exploring also relationships between burned and unburned forest structures on bird assemblages. On each site, we determined forest structural variables, and twice per year, from 2015 to 2017, we recorded birds seen or heard on every site, from dawn to 1000 hours, at 30 0.5 ha counting points.

Results
Abundance and richness of bird species were lower in the unburned reference site than in close- and distant-burned sites; the farther the distance of burned sites to the unburned site, the less similarity in bird assemblages. Bird assemblage abundance appeared to be associated with snag height and basal area. However, bird species in mature forests were present at all sites and outnumbered those typically found in forest edges, or secondary or disturbed forests.

Conclusions
Connected areas between unburned and burned forest patches provide habitat for birds living in both environments. Preventing forest fragmentation by reducing the number and size of wildfires, promoting selective timber logging, and banning post-fire snag removal will help promote suitable habitat for different bird assemblages and contribute to Yungas forests’ sustainability. This study is the first step toward understanding how fire-patch distances to unburned forests may affect bird assemblages in subtropical Southern Andean Yungas forests in South America and provide a basis for comparison with other subtropical ecosystems around the world.
Chronic Lymphocytic Leukemia: Real-World Data From India
Authors: Tejaswi V. , Lad Deepesh P. , Jindal Nishant , Prakash Gaurav , Malhotra Pankaj , Khadwal Alka , Jain Arihant , Sreedharanunni Sreejesh , Sachdeva Manupdesh Singh , Naseem Shano , Varma Neelam , Varma Subhash 
Published: June 2020

PURPOSE Chronic lymphocytic leukemia (CLL) is uncommon in India. There are limited studies on CLL from the Indian subcontinent. METHODS This was a prospective study (2011-2017) of consecutively diagnosed patients with CLL at a single center. The diagnosis, prognosis, treatment indication, response criteria, and adverse events were recorded as per International Workshop on Chronic Lymphocytic Leukemia guidelines. Biosimilar rituximab dosing (375 mg/m2) was fixed for all cycles. Time to next treatment (TTNT) was defined as the time from front-line treatment initiation to next treatment or death from any cause. Overall survival (OS) was defined as the time from treatment initiation until death from any cause. RESULTS A total of 409 patients with CLL were enrolled over the study period. The median follow-up was 32 months (range, 2-135 months). The median age was 61 years, and 31.8% of patients with CLL were ≤ 55 years of age; 43.3% of patients had a cumulative illness rating scale score ≥ 3. Prognostic fluorescence in situ hybridization data were available in 53.3% of patients. Chlorambucil (94/180; 52.2%) and bendamustine + rituximab (BR; 57/180; 31.6%) were the most common regimens used up front. The overall response rates after front-line therapy were 74.4% and 91.2%, respectively. The TTNT was 33 months and not reached, respectively ( P = .001). Grade 3/4 neutropenia and infections were seen in 52.6% and 38.5% of patients receiving BR. The median OS was not reached in both regimens ( P = .25). CONCLUSION Indian patients with CLL are younger in chronological age but have higher morbidity burden. Treatment outcomes with biosimilar fixed-dose BR are comparable to those reported in the literature. Chlorambucil is still a valid option, given the economic burden of the disease and treatment.
A single cell transcriptional atlas of early synovial joint development
Authors: Bian Qin , Cheng Yu-Hao , Wilson Jordan P. , Su Emily Y. , Kim Dong Won , Wang Hong , Yoo Sooyeon , Blackshaw Seth , Cahan Patrick 
Published: June 2020

ABSTRACT
Synovial joint development begins with the formation of the interzone, a region of condensed mesenchymal cells at the site of the prospective joint. Recently, lineage-tracing strategies have revealed that Gdf5-lineage cells native to and from outside the interzone contribute to most, if not all, of the major joint components. However, there is limited knowledge of the specific transcriptional and signaling programs that regulate interzone formation and fate diversification of synovial joint constituents. To address this, we have performed single cell RNA-Seq analysis of 7329 synovial joint progenitor cells from the developing murine knee joint from E12.5 to E15.5. By using a combination of computational analytics, in situ hybridization and in vitro characterization of prospectively isolated populations, we have identified the transcriptional profiles of the major developmental paths for joint progenitors. Our freely available single cell transcriptional atlas will serve as a resource for the community to uncover transcriptional programs and cell interactions that regulate synovial joint development.
Psychological burden of quarantine in children and adolescents: A rapid systematic review and proposed solutions
Authors: Imran Nazish , Aamer Irum , Sharif Muhammad Imran , Bodla Zubair Hassan , Naveed Sadiq 
Published: June 2020

As COVID-19 grips the world, many people are quarantined or isolated resulting in adverse consequences for the mental health of youth. This rapid review takes into account the impact of quarantine on mental health of children and adolescents, and proposes measures to improve psychological outcomes of isolation. Three electronic databases including PubMed, Scopus, and ISI Web of Science were searched. Two independent reviewers performed title and abstract screening followed by full-text screening. This review article included 10 studies. The seven studies before onset of COVID 19 about psychological impact of quarantine in children have reported isolation, social exclusion stigma and fear among the children. The most common diagnoses were acute stress disorder, adjustment disorder, grief, and post-traumatic stress disorder. Three studies during the COVID-19 pandemic reported restlessness, irritability, anxiety, clinginess and inattention with increased screen time in children during quarantine. These adverse consequences can be tackled through carefully formulated multilevel interventions.
doi: https://doi.org/10.12669/pjms.36.5.3088
How to cite this:Imran N, Aamer I, Sharif MI, Bodla ZH, Naveed S. Psychological burden of quarantine in children and adolescents: A rapid systematic review and proposed solutions. Pak J Med Sci. 2020;36(5):1106-1116. doi: https://doi.org/10.12669/pjms.36.5.3088
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Implementation of a hospice pain-education programme
Authors: Borders Joshua 
Published: June 2020

Background: No studies have explored the pain resource nurse curriculum in the hospice setting. This curriculum offers a structured method to teach pain management to nurses. Aims: The purpose of this study was to examine the effect of implementing a modified pain resource nurse curriculum on nursing knowledge in a community hospice agency. Methods: A modified and condensed version of the pain resources nurse curriculum was presented to community hospice nurses during two educational sessions. A pre-test–post-test assessment was conducted using a modified version of the Nursing Knowledge and Attitudes Survey Regarding Pain tool to assess knowledge growth from the educational sessions. Findings: For educational session 1, average correct responses rose slightly from the pre-test to the post-test. However, this increase was not found to be statistically significant. For educational session 2, average correct responses rose an average of 2.6 points. This increase was found to be statistically significant. Conclusions: Based on this pre-experimental study, there is evidence that the pain resources nurse curriculum can provide an instructional framework for teaching hospice nurses. However, further study is needed, including a more rigorous design.
Real-time infrared image detail enhancement based on fast guided image filter and plateau equalization
Authors: Chen Yaohong , Kang Jin U. , Zhang Gaopeng , Cao Jianzhong , Xie Qingsheng , Kwan Chiman 
Published: June 2020

Image detail enhancement is critical to the performance of infrared imaging systems because the original images generally suffer from low contrast and a low signal-to-noise ratio. Although conventional decomposition-based methods have advantages in enhancing image details, they also have clear disadvantages, which include intensive computations, over-enhanced noise, and gradient reversal artifacts. In this paper, we propose to accelerate enhancement processing by using a fast guided filter and plateau equalization. Our method consists of image decomposition, base and detail layers processing, and projection of the enhanced image to an 8-bit dynamic range. Experimental results demonstrated that our proposed method achieves a good balance among detail enhancement performance, noise and gradient reversal artifacts suppression, and computational cost, with a frame rate around 30 fps for

640

×

512

infrared images.
Twelve tips for effective crisis response in medical education institutions: Lessons learned from COVID-19
Authors: Ahmed Samar  A. , Shehata Mohamed H. K. , Wells Raymond L , Atwa Hani , Amin Hebat Allah 
Published: June 2020

Medical education is facing great challenges and uncertainties amidst the COVID-19 pandemic. Medical Education Institutions are required to build a task force team for crisis management. These should be committed to supporting a sudden online education transition, academic support, and psychological well-being of students, staff members, health care professionals, paramedics, and faculty administration.
As the situation evolves, the task force has to monitor the challenges and provide appropriate plans, guidance, and solutions.
Leaders in medical education have a crucial role in response to the pandemic crisis in securing a successful educational process while ensuring the mental and psychological well-being of the stakeholders.
Herein, we provide tips that can provide a guide for medical education leaders to coordinate crisis management.