bluuebunny/crossref_metadata_2025_split huggingface dataset:
Blocked pollen release prevents fruit formation in the halophyte Elaeagnus angustifolia in non-saline habitats
Authors: Guo Jianrong , Wang Baoshan 
Published: October 2020

Abstract
Background: Anther development affects the reproduction of flowering plants. Halophyte Elaeagnus angustifolia can bear fruits when grown in saline soils. However, no fruits are born in non-saline soils. The possible reasons and differences in E. angustifolia under two conditions were elucidated.Results: We examined features including pollen vitality and germination, in situ pollen germination after natural and hand pollination, anthers after pollen release, and the transcriptome in anthers. No significant difference was observed in pollen vitality or stigma receptivity in E. angustifolia in non-saline vs. saline habitats. However, no pollen tubes were present in styles, and pollen grains were abundant in E. angustifolia anthers under non-saline conditions. Notably, many pollen tubes formed in styles of E. angustifolia after hand pollination in the non-saline habitat. And the differentially expressed genes in anthers from saline vs. non-saline habitats were mainly related to phytohormones, cell wall secondary thickening, transcription factors and ion transport.Conclusions: E. angustifolia fail to form fruits in non-saline habitats due to poor anther pollen release. The induction and coordinated upregulation of genes related to anther cell wall formation and JA biosynthesis likely contribute to anther dehiscence in E. angustifolia in saline habitats, whereas anther dehiscence is blocked in plants grown in non-saline habitats.
Clinical impact of digital and conventional PET control databases for semi-quantitative analysis of brain 18F-FDG digital PET scans&nbsp;
Authors: Mairal Elise , Doyen Matthieu , Rivasseau-Jonveaux Thérèse , Malaplate Catherine , Guedj Eric , Verger Antoine 
Published: October 2020

Abstract
Purpose: Digital PET cameras markedly improve sensitivity and spatial resolution of brain 18F-FDG PET images compared to conventional cameras. Our study aimed to assess whether specific control databases are required to improve the diagnostic performance of these recent advances.Methods: We retrospectively selected two groups of subjects, twenty-seven Alzheimer's Disease (AD) patients and twenty-two healthy control (HC) subjects. All subjects underwent a brain 18F-FDG PET on a digital camera (Vereos, Philips®). These two group (AD and HC) are compared, using a Semi-Quantitative Analysis (SQA), to two age and sex matched controls acquired with a digital PET/CT (Vereos, Philips®) or a conventional PET/CT (Biograph 6, Siemens®) camera, at group and individual levels. Moreover, individual visual interpretation of SPM T-maps was provided for the positive diagnosis of AD by 3 experienced raters.Results: At group level, SQA using digital controls detected more marked hypometabolic areas in AD (+ 116 cm3 at p<0.001 uncorrected for the voxel, corrected for the cluster) than SQA using conventional controls. At the individual level, the accuracy of SQA for discriminating AD using digital controls was higher than SQA using conventional controls (86 % vs. 80 %, p<0.01, at p<0.005 uncorrected for the voxel, corrected for the cluster), with similar specificity (82 % vs. 82 %) but higher sensitivity (89 % vs. 78 %). These results were confirmed by visual analysis (accuracies of 84 % and 82 % for digital and conventional controls respectively, p=0.01).Conclusion: There is an urgent need to establish specific digital PET control databases for SQA of brain 18F-FDG PET images as such databases improve the accuracy of AD diagnosis.
Immediate impact of stay-at-home orders to control COVID-19 transmission on mental well-being in Bangladeshi adult population: Patterns, Explanations, and future directions
Authors: Ali Mohammad , Ahsan Gias U. , Khan Risliana , Khan Hasinur Rahman , Hossain Ahmed 
Published: October 2020

Abstract
Objective: We aim to evaluate the immediate impacts of COVID-19 stay-at-home orders on the mental well-being of Bangladeshi adults. We recruited 1404 healthy adults following the Bangladesh government's lockdown announcement. A questionnaire comprising the Warwick Edinburgh Mental Well-being Scale was used to define mental health. Results: The overall mean score for well-being was 42.4, indicating that 51.9% of adults suffered from poor mental health. And within that 48% of males and 57% of females were depressed. The mean scores for government workers, unemployed workers, and business employees were 45.1, 39.6, and 39.5, respectively. Confounding adjustments in multivariable linear regression models revealed that married women, unemployed and business communities, and individuals returning to villages were heavily depressed. Stay-at-home orders had significant repercussions on mental health and created a gender disparity in depression among adults. Suggestions include promoting mental health for women, unemployed, and business individuals. Married women need to be taken into special consideration as their mental well-being is worse. Older people (50 years of age and over) reported a high day-to-day variation in their mental health. These results should be factored in when discussing the mental health of adults and communities to cope with quarantine.
Prognostic value of bedside lung ultrasound score in patients with COVID-19
Authors: Ji Li , Cao Chunyan , Gao Ying , Zhang Wen , Xie Yuji , Duan Yilian , Kong Shuangshuang , You Manjie , Ma Rong , Jiang Lili , Liu Jie , Sun Zhenxing , Zhang Ziming , Wang Jing , Yang Yali , Lv Qing , Zhang Li , Li Yuman , Zhang Jinxiang , Xie Mingxing 
Published: October 2020

Abstract
Background: Bedside lung ultrasound (LUS) has emerged as a useful and noninvasive tool to detect lung involvement and monitor changes in patients with coronavirus disease 2019 (COVID-19). However, the clinical significance of the LUS score in patients with COVID-19 remains unknown. We aimed to investigate the prognostic value of the LUS score in patients with COVID-19.Methods: The LUS protocol consisted of 12 scanning zones and was performed in 280 consecutive patients with COVID-19. The LUS score based on B-lines, lung consolidation and pleural line abnormalities was evaluated.Results: Patients in the highest LUS score group were more likely to have a lower lymphocyte percentage (LYM%); higher levels of D-dimer, C-reactive protein, hypersensitive troponin I and creatine kinase muscle-brain; more invasive mechanical ventilation therapy; higher incidence of ARDS; and higher mortality than patients in the lowest LUS score group. After a median follow-up of 14 days [IQR, 10-20 days], 37 patients developed ARDS, and 13 died. Patients with adverse outcomes presented a higher rate of bilateral involvement; more involved zones and B-lines, pleural line abnormalities and consolidation; and a higher LUS score than event-free survivors. The Cox models adding the LUS score as a continuous variable (hazard ratio [HR]: 1.05, 95% confidence intervals [CI]: 1.02～1.08; P < 0.001; Akaike Information Criterion [AIC] =272; C-index = 0.903) or as a categorical variable (HR: 10.76, 95% CI: 2.75～42.05; P = 0.001; AIC =272; C-index = 0.902) were found to predict poor outcomes more accurately than the basic model (AIC =286; C-index = 0.866). An LUS score cut-off >12 predicted adverse outcomes with a specificity and sensitivity of 90.5% and 91.9%, respectively.Conclusions: The LUS score devised by our group performs well at predicting adverse outcomes in patients with COVID-19 and is important for risk stratification in COVID-19 patients.
Can Pre-Trained Convolutional Neural Networks be directly used as a Feature Extractor for Video-based Neonatal Sleep and Wake Classification?
Authors: Awais Muhammad , Long Xi , Yin Bin , chen Chen , Akbarzadeh Saeed , Abbasi Saadullah Farooq , Irfan Muhammad , Lu Chunmei , Wang Xinhua , Wang Laishuan , Chen Wei 
Published: October 2020

Abstract
Objective: In this paper, we propose to evaluate the use of a pre-trained convolutional neural networks (CNNs) as a features extractor followed by the Principal Component Analysis (PCA) to find the best discriminant features to perform classification using support vector machine (SVM) algorithm for neonatal sleep and wake states using Fluke® facial video frames. Using pre-trained CNNs as feature extractor would hugely reduce the effort of collecting new neonatal data for training a neural network which could be computationally very expensive. The features are extracted after fully connected layers (FCL’s), where we compare several pre-trained CNNs, e.g., VGG16, VGG19, InceptionV3, GoogLeNet, ResNet, and AlexNet. Results: From around 2-h Fluke® video recording of seven neonate, we achieved a modest classification performance with an accuracy, sensitivity, and specificity of 65.3%, 69.8%, 61.0%, respectively with AlexNet using Fluke® (RGB) video frames. This indicates that using a pre-trained model as a feature extractor could not fully suffice for highly reliable sleep and wake classification in neonates. Therefore, in future a dedicated neural network trained on neonatal data or a transfer learning approach is required.
Socioeconomic inequality in intermittent preventive treatment using Sulphadoxine pyrimethamine among pregnant women in Nigeria
Authors: Mahmud Fatima Muhammad , Majdzadeh Reza , Nedjat Saharnaz , Sajadi Haniye Sadat , Parsaeian Mahboubeh 
Published: October 2020

Abstract
Background: Sulphadoxine pyrimethamine using intermittent preventive treatment (IPTp-SP) for malaria prevention is recommended for all pregnant women at malaria endemic areas. However, there is limited evidence on the level of socioeconomic inequality in IPTp-SP use to prevent malaria in pregnant women in Nigeria. Thus, this study aimed to determine the level of socioeconomic inequality in IPTp-SP use among pregnant women and to decompose it into its contributing factors.Methods: A secondary data analysis of Nigerian demographic and health survey of 2018 was conducted. A sample of 21,621 pregnant women aged between 15-49 years and had live birth in the previous 2 years before the survey were included to this analysis. Participants were recruited based on a stratified two-stage cluster sampling method. Socioeconomic inequality was decomposed into its contributing factors by concentration index.Result: Totally 63.6% of pregnant women took at least one dose of IPTp. Among IPTp users, 35.1% took one dose, 38.6% took two doses and 26.2% took three doses and more. Based on concentration index of 0.180 (p-value= <0.001, 95% CI: 0.176 to 0.183) and the Erreyger’s normalization concentration index 0.280 (p-value=<0.001, 95% CI: 0.251 to 0.309) IPTp utilization was pro-rich. The largest contributors to the inequality in IPTp uptake were wealth index (47.81%) and educational status (28.66%).Conclusion: Our findings showed that IPTp use was pro-rich in Nigeria. Wealth index and educational status were the factors that significantly contributed to the inequality. The disparities could be reduced through free IPTp service expansion by targeting pregnant women from low socioeconomic status.
Determining the stability of minimally displaced lateral humeral condyle fractures in children: ultrasound is better than arthrography
Authors: Wu Xing , Li Xiongtao , Yang Shaowei , Wang Si , Xia Jingdong , Chen Xiaoliang , Shen Xiantao 
Published: October 2020

Abstract
Background: Evaluating of the articular cartilage status of the distal humeral epiphysis is difficult. Ultrasound imaging of the elbow is increasingly being used to confirm the integrity of the articular cartilage of minimally displaced lateral humeral condyle fractures in children with minimally displaced fractures. The aims of this study were to assess the correlations between ultrasound and arthrography findings for predicting the integrity of the cartilage hinge and to describe the utility of ultrasound in determining the need for pre-treatment.Methods: Thirty-nine patients with minimally displaced lateral humeral condyle fractures who underwent ultrasound and arthrography examinations before surgery from May 2018 to December 2019 were included in this study. Ultrasound and arthrography predictors of the cartilage hinge status were independently measured. The ultrasound and arthrography results were compared.Results: The mean displacement of the fractures was 3.1 mm (range, 2.0～5.0 mm). Arthrography showed incomplete fractures in 24 patients (61.5%) and complete fractures in 15 patients (38.5%). Ultrasound showed incomplete fractures in 25 patients (64.1%) and complete fractures in 14 patients (35.9%). The ultrasound and arthrography results of the integrity of the articular surface were consistent in 92.3% of the cases, including 23 that were predicted to have an intact articular surface and 13 that were predicted to have an incongruity articular surface. There was no correlation between the displacement and the fracture appearing complete on the ultrasound scan. The Pearson coefficient between ultrasound and arthrography for assessing the integrity of the articular surface was 0.837.Conclusions: Ultrasound and arthrography assessments of the integrity of the cartilage hinge status appear to be highly consistent. Ultrasound can be used as a complementary tool with arthrography to predict the integrity of the cartilage hinge status in children with minimally displaced lateral humeral condyle fractures.Level of evidence: Prospective study; level Ⅱ.
A skin liquid biopsy method to assess the immune environment of cutaneous T-cell lymphoma
Authors: Torii Kan , Okada Yukinori , Morita Akimichi 
Published: October 2020

Abstract
Cells infiltrating lesional skin cannot be analyzed in detail through immunohistochemistry or cell separation techniques using skin biopsy specimens. Here, we describe a skin liquid biopsy method that enables T cell isolation from small amounts of lesional whole blood from mycosis fungoides (MF) patients. Gene expression analysis was performed on isolated cells which revealed that CD4+CD45RO+ T cells contribute to the pathogenesis of MF, and CD8+CD45RO+T cells serve as the effector cells of CD4+ malignant MF. CD8+CD45RO+ T cells in lesional blood negatively correlate with the modified severity-weighted assessment tool (mSWAT) and negatively regulate cellular responses. CD4+CD45RO+ T cells highly express TNC, C1QB, PLK4, SGK1, RGS1 and CD69, and have a lower diversity of the T-cell receptor repertoire. Our results provide new insights into the pathogenesis of MF. The technique described here may be applicable to the evaluation of treatment efficacy for other skin inflammatory diseases.
Bi-directional command of cognitive control by distinct prefrontal cortical output neurons to thalamus and striatum
Authors: de Kloet Sybren , Bruinsma Bastiaan , Terra Huub , Heistek Tim , Passchier Emma , Berg Alexandra van den , Luchicchi Antonio , Min Rogier , Pattij Tommy , Mansvelder Huibert 
Published: October 2020

Abstract
The medial prefrontal cortex (mPFC) steers goal-directed actions and withholds inappropriate behavior. Dorsal and ventral mPFC (dmPFC/vmPFC) circuits have distinct roles in cognitive control, but underlying mechanisms are poorly understood. In this study, we provide anatomical, behavioral, and neurophysiological evidence for distinct roles of four distinct prefrontal projection populations in behavior. We used neuroanatomical tracing techniques, chemogenetics and fiber photometry in freely behaving rats, and in vitro electrophysiology to characterize dmPFC and vmPFC outputs to distinct thalamic and striatal subdomains and show that they have dissociable roles in cognitive control. We identify four spatially segregated projection neuron populations in the mPFC. Chemogenetic silencing shows that dmPFC and vmPFC projections to lateral and medial mediodorsal thalamus subregions oppositely regulate cognitive control. In addition, superficial and deep layer dmPFC neurons projecting to striatum and thalamus divergently regulate cognitive control. Using fiber photometry, we show that these projections distinctly encode behavior. Finally, we show that postsynaptic striatal and thalamic neurons differentially process synaptic inputs from dmPFC and vmPFC, highlighting mechanisms that potentially amplify distinct pathways underlying cognitive control of behavior. Collectively, we show that mPFC output circuits targeting anatomically and functionally distinct striatal and thalamic subregions encode bidirectional command of cognitive control.
Metagenomic insights into sulfate-reducing bacteria in a revegetated acidic mine wasteland
Authors: Li Jin-tian , Jia Pu , Wang Xiao-juan , Feng Shi-wei , Yang Tao-tao , Fang Zhou , Liu Jun , Liao Bin , Shu Wen-sheng , Liang Jie-Liang 
Published: October 2020

Abstract
BackgroundThe widespread occurrence of sulfate-reducing microorganisms (SRMs, which are typically considered anaerobic organisms) in temporarily oxic/hypoxic aquatic environments indicates an intriguing possibility that SRMs can prevail in continuously oxic/hypoxic terrestrial environments rich in sulfate. However, little attention has been paid to such a possibility, leading to an incomplete understanding of microorganisms driving terrestrial part of the global sulphur cycle.ResultsIn this study, genome-centric metagenomics was employed to explore SRMs in a revegetated acidic mine wasteland under continuously oxic/hypoxic conditions. We reconstructed 12 Acidobacteria and four Deltaproteobacteria genomes encoding reductive DsrAB, of which five represented three new SRM genera. Our results showed that Acidobacteria-related SRMs differed considerably from Deltaproteobacteria-related SRMs in metabolic potentials. Genomes of Acidobacteria-related SRMs harbored more glycoside hydrolase (GH) genes than those of previously known SRMs. They also tended to encode more oxygen-tolerant hydrogenases and cytochrome c oxidases, but less methyl-accepting chemotaxis proteins (MCPs) than genomes of Deltaproteobacteria-related SRMs. More importantly, we discovered that SRM-infecting viruses can contribute to glycoside hydrolysis, chemotaxis and antioxidation of their hosts. Remarkably, one GH encoded by a SRM-infecting virus is responsible for the liberation of rhamnose (a monosaccharide that is accessible directly to SRMs for dissimilatory sulfate reduction) from plant cell-wall-derived oligosaccharides.ConclusionsTaken together, our results do not only improve our understanding of microorganisms driving dissimilatory sulfate reduction in terrestrial environments under continuously oxic/hypoxic conditions but also provides the first evidence for putative roles of viruses in S biogeochemical cycle in terrestrial ecosystems.
Signature of chronic hepatitis B virus infection in nails and hair
Authors: Komatsu Haruki , Inui Ayano , Odmaa Enkhtaivan , Ito Yoshinori , Umetsu Shuichiro , Tsunoda Tomoyuki , Fujisawa Tomoo 
Published: October 2020

Abstract
Background: Hepatitis B virus (HBV) is detected in extrahepatic tissues of individuals with HBV infection. Whether nails and hair contain HBV has been unknown. Methods: We examined two patient groups: those with chronic HBV infection alone (n=71), and those with both chronic HBV and hepatitis delta virus (HDV) infections (n=15). HBV DNA in the patients' fingernails and hair were measured by real-time PCR. Hepatitis B surface antigen (HBsAg) of fingernails was evaluated by an enzyme immunoassay. HDV RNA in fingernails was measured by real-time PCR. Immunochemical staining was performed on nails. We used chimeric mice with humanized livers to evaluate the infectivity of nails.Results: Of the 71 pairs of HBV-alone nail and hair samples, 70 (99%) nail and 60 (85%) hair samples were positive for β-actin DNA. Of those 70 nail samples, 65 (93%) were HBV DNA-positive. Of the 60 hair samples, 49 (82%) were HBV DNA-positive. The serum HBV DNA level of the nail HBV DNA-positive patients was significantly higher than that of the nail HBV DNA-negative patients. The hair HBV DNA-positive patients' serum HBV DNA level was significantly higher compared to the hair HBV DNA-negative patients. The nail HBV DNA level was significantly higher than the hair HBV DNA level. The nails and hair HBV DNA levels were correlated (r=0.325, p<0.05). A phylogenetic tree analysis of the complete genome sequence of HBV isolated from nails and hair identified the infection source. Of the 64 nail samples, 38 (59%) were HBsAg-positive. All 15 pairs of chronic HBV/HDV infection nail and hair samples were β-actin DNA-positive. However, nail HBV DNA was detected in two patients (13%). None of the 15 patients were positive for hair HBV DNA. Nail HDV RNA was detected in three patients (20%). Of the 15 patients, eight (53%) were nail HBsAg-positive. HBsAg and hepatitis delta (HD) antigen were detected in the nails by immunochemical staining. Chimeric mice were not infected with PBS containing HBsAg and HBV DNA elucidated from nails.Conclusions: Nails and hair were the reservoir of HBV DNA. Moreover, nails can contain HBsAg, HDV RNA, and HD antigen.
Creativity in Public Involvement: Promoting Meaningful Collaboration in Health Outcome Measures Research
Authors: Broomfield Katherine , Criag Claire , Smith Sarah , Jones Georgina , Judge Simon , Sage Karen 
Published: October 2020

Abstract
Background: The role of public involvement (PI) in healthcare research is growing in importance and it is imperative that researchers continuously reflect on how to promote the inclusion of patients and service users in the design and delivery of research. PI offers a mechanism for end-users to be involved planning, executing, and reporting research that develops health outcome measures. Some patient groups, including people who have communication difficulties, may struggle to engage in the methods traditionally employed to promote PI engagement such as questionnaires and focus groups. Methods: This article describes a longitudinal case-study of a PI group, consisting of people who have communication difficulties, for a patient-reported outcome development project. Creative methods, informed by the participatory design principles of enacting, seeing and doing, were introduced stepwise into seven PI meetings. Data from video and visual minutes were used to evaluate the impact of the methods, following each group. Feedback, in the form of verbal and visual outputs taken directly from group meeting minutes, along with vignettes evidenced the impact of the methods on the project and group members.Results: Creative methods enabled the PI group members to meaningfully contribute in meetings, to interact dynamically and to engage with the aims and processes of the research project. Their involvement facilitated the development of accessible recruitment materials, informed data analysis and supported the dissemination of project outputs. Employing creative methods also enabled both PI group members and the academic team to reflect on their own roles within the research project and the impact that involvement in the PI group has had on their personal development and perspectives on research.Conclusion: The impact of using creative methods in PI for this PROM development project improved collaboration and understanding between PI members and the academic team. The meaningful engagement of people who have communication difficulties in PI generated a more accessible project in terms of both process and impact. Creativity has applicability beyond people whose communication is non-verbal; it should be harnessed by research teams to identify and breakdown barriers to involvement to develop outcome tools that reflect the diversity of our populations.