bluuebunny/crossref_metadata_2025_split huggingface dataset:
Eosinophilic Gastroenteritis as a Cause of Non-Helicobacter pylori, Non-gastrotoxic Drug Ulcers in Children
Authors: Joo Jung Yeon , Cho Jin Min , Yoo In Hyuk , Yang Hye Ran 
Published: July 2020

Abstract
Background: While Helicobacter pylori (H. pylori) ulcers has declined recently, H. pylori-negative and/or gastrotoxic drug-negative peptic ulcers (HNGN-PU) has increased. This study aimed to analyze the etiology of peptic ulcers in children and the differences in clinical, laboratory, endoscopic, and histopathologic findings of peptic ulcers according to etiology, including eosinophilic gastroenteritis (EoGE).Methods: In total, 255 children (157 boys and 98 girls) with peptic ulcers were recruited. The subjects were categorized into 5 groups according to the etiology of the ulcer: 1) H. pylori infection (n = 51); 2) gastrotoxic drugs (n = 18); 3) idiopathic (n = 144); 4) systemic disease (n = 23); 5) EoGE (n = 19). Clinical data were reviewed and analyzed retrospectively.Results: Age at diagnosis, ulcer recurrence, atopic dermatitis history, white blood cell count, blood eosinophil count, platelet count, serum albumin level, iron level, erythrocyte sedimentation rate, and C-reactive protein level differed significantly among the 5 groups (all p < 0.05). Regarding endoscopic findings, multiple ulcers and gastric mucosal nodularity differed among the 5 groups (all p < 0.05). When comparing the EoGE ulcer group with the others, EoGE group revealed older ages (p = 0.022), higher rates of ulcer recurrence (p = 0.018), atopic dermatitis history (p = 0.001), and both blood and tissue eosinophilia (both p = 0.001).Conclusions: EoGE ulcers constituted 10.2% of HNGN-PU in pediatric patients. In children with HNGN-PU, peripheral eosinophilia, ulcer recurrence, and atopic dermatitis history might imply EoGE, necessitating thorough investigation of tissue eosinophils during endoscopic biopsy.Trial registration: A total of 255 children was retrospectively registered between between July 2003 and April 2017.
Assessing the impacts of the Agenda Gap intervention for youth mental health promotion through policy engagement: A study protocol
Authors: Jenkins Emily , Haines-Saah Rebecca , McGuinness Liza , Hirani Saima , Boakye-Yiadom Noah , Halsall Tanya , Rivers Robert , Morris Jonathan 
Published: July 2020

Abstract
Background: Mental health challenges are a leading health concern for youth globally, requiring a comprehensive approach incorporating promotion, prevention and treatment within a healthy public policy framework. However, the broad enactment of this vision has yet to be realized. Further, mental health promotion evidence specific to youth is still emerging and has not yet focused at a policy level. This is a critical gap, as policy is a key mental health promotion lever that can alter the social and structural conditions that contribute to shaping youth mental health outcomes for all youth, across the full spectrum of need. Responsive to this research and intervention priority, our prototype study intervention – the Agenda Gap – is comprised of an innovative, multi-media engagement intervention, developed in collaboration with youth. This intervention aims to equip youth and build capacity for them to lead meaningful policy change reflective of the mental health needs of diverse communities of youth, including those who experience structural vulnerability and who would not typically have had their voice represented in policymaking processes. Methods: This study will use a multiple case study design and mixed methods grounded in a realist approach and will be conducted in three sites across two Canadian provinces (British Columbia and Alberta). In an earlier phase of this research, we collaboratively designed the prototype intervention with youth, community and policy partners. In this phase of the study, the intervention will be implemented and further tested with new groups of youth collaborators (n=10-15/site). Outcome data will be collected through realist qualitative interviews, validated questionnaires (i.e., Child and Youth Resilience Measure (CYRM-12), General Self-Efficacy (GSE) Scale, and the Critical Consiousness Scale (CCS)) and additional survey items developed by our study team. Analysis will focus on identification of key context-mechanism-outcome configurations to provide comprehensive insights into how this intervention works, for whom, and in what context. Discussion: This study is unique in its “upstream” focus on youth-engaged policymaking as a tool for improving the social and structural conditions that influence youth mental health across socioecological levels. Through the implementation and testing of the Agenda Gap intervention with diverse youth, this study will contribute to the evidence base on youth-engaged policymaking as a novel and innovative, mental health promotion strategy.
The aceE involves in mycolic acid synthesis and biofilm formation in Mycobacterium smegmatis
Authors: Chen Suting , Teng Tianlu , Wen Shuan , Zhang Tingting , Huang Hairong 
Published: July 2020

Abstract
Background: The integrity of cell wall structure is highly significant for the in vivo survival of mycobacteria. We hypothesized that changes in morphology may indicate changes in cell wall metabolism and identified an aceE gene mutant (aceE-mut) which presented a deficient colony morphology on 7H10 agar by screening transposon mutagenesis in Mycolicibacterium smegmatis, basonym Mycobacterium smegmatis (M. smegmatis). This study aimed to identify the functional role of aceE gene in cell wall biosynthesis in M. smegmatis.Results: We observed that the colony morphology of aceE-mut was quite different, smaller and smoother on the solid culture medium than the wild-type (WT) strain during the transposon library screening of M. smegmatis. Notably, in contrast with the WT, which aggregates and forms biofilm, the aceE-mut lost its ability of growing aggregately and biofilm formation, which are two very important features of mycobacteria. The morphological changes in the aceE-mut strain were further confirmed by electron microscopy which indicated smoother and thinner cell envelope images in contrast with the rough morphology of WT strains. Additionally, the aceE-mut was more fragile to acidic stress and exhibited a pronounced defects in entering the macrophages as compared to the WT. The analysis of mycolic acid (MA) using LC-MS indicated deficiency of alpha-MA and epoxy-MA in aceE-mut strain whereas complementation of the aceE-mut with a wild-type aceE gene restored the composition of MA. Conclusions: Over all, this study indicates that aceE gene plays a significant role in the mycolic acid synthesis and affects the colony morphology, biofilm formation of M. smegmatis and bacteria invasion of macrophage.
Direct comparison of magnetic resonance imaging and pathological shrinkage patterns of triple-negative breast cancer after neoadjuvant chemotherapy
Authors: Yoshikawa Katsuhiro , Ishida Mitsuaki , Kan Naoki , Yanai Hirotsugu , Tsuta Koji , Sekimoto Mitsugu , Sugie Tomoharu 
Published: July 2020

Abstract
Background: We aimed to investigate the usefulness of magnetic resonance imaging (MRI) and histopathological shrinkage patterns to formulate a predictive equation for estimating residual tumor size after neoadjuvant chemotherapy (NAC) in triple-negative breast cancer (TNBC) patients. Methods: We enrolled 34 TNBC patients who underwent MRI before and after NAC. The MRI and histopathological shrinkage patterns were analyzed and classified into five categories—types I and II (concentric shrinkage without or with surrounding lesions, respectively), type III (shrinkage with residual multinodular lesions), type IV (diffuse contrast enhancement in the entire quadrant), and non-visualization. The residual tumor sizes following MRI and histopathological examination were also compared.Results: The most common MRI and histopathological shrinkage pattern was type I (41.2% and 38.2%, respectively), followed by non-visualization (26.5% and 32.4%, respectively); the concordance rate between MRI and histopathological shrinkage patterns was 41.2%. There was a strong correlation between MRI tumor size and pathological tumor size (r = 0.89). Based on these findings, a predictive equation for pathological tumor size was formulated as follows: BConclusions: Our equation may aid accurate preoperative assessment. Further studies are needed to determine its predictive value and applicability.
Immunohistochemical Basigin Expression Level in Thyroid Cancer Tissues
Authors: Guo Wan-Ping , Tang Deng , Pang Yu-Yan , Li Xiao-Jiao , Chen Gang , Huang Zhi-Guang , Tang Xiao-Zhun , Lai Qin-Qiao , Gan Jin-Yan , Huang Xiao-Li , Liu Xiao-Fan , Wei Zhi-Xiao , Ma Wei 
Published: July 2020

Abstract
Background: Thyroid cancer (TC) is the most common endocrine malignancy, Basigin (also known as BSG) plays a crucial role in tumor cell invasion, metastasis, and angiogenesis. This study was designed to identify the change of BSG expression in TC and its possible potential mechanism. Methods: The BSG expression levels in TC were demonstrated using data collected from in-house immunohistochemical (IHC), RNA-sequencing (RNA-seq), microarrays and literatures. Integrated analysis was performed to determined BSG expression levels in TC comprehensively. The gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were performed with the integration of BSG co-expressed genes and differentially expressed genes (DEGs) in TC tissues to explore the potential mechanisms of BSG in TC. Results: The protein expression level of BSG was significantly higher in TC cases based on the IHC experiments. In addition, the combined SMD for BSG expression was 0.39 (p<0.0001), the diagnostic odds ratio was 3.69, and the AUC of the sROC curve was 0.6986 using 1182 TC cases and 437 non-cancerous cases from 17 independent datasets. Furthermore, BSG co-expressed genes tended to be enriched in gene terms of the extracellular matrix (ECM), cell adhesion, and cell-cell interactions. The expression levels of nine hub BSG co-expressed genes were markedly up-regulated in TC cases. Conclusion: BSG expression levels were closely correlated with the progression of TC and may affect the signals of the ECM, cell adhesion, and cell-cell interactions.
Evaluation of the Effect of Cooled Haemodialysis on cognitive Function in Patients suffering with End-stage Kidney Disease (E-CHECKED): Feasibility Randomised Control Trial Protocol
Authors: Dasgupta Indranil , Odudu Aghogo , Baharani Jyoti , Fergusson Niall , Griffiths Helen , Harrison John , Maruff Paul , Thomas G Neil , Woodhall Gavin , Youssef Samir , Tadros George 
Published: July 2020

Abstract
Background: Cognitive impairment is common in haemodialysis (HD) patients and is associated independently with depression and mortality. This association is poorly understood, and no intervention is proven to slow cognitive decline. There is evidence that cooler dialysis fluid (dialysate) may slow white matter changes in the brain, but no study has investigated the effect of cooler dialysate on cognition. This study addresses whether cooler dialysate can prevent the decline in cognition and improve quality of life (QOL) in HD patients.Methods: This is a multi-site prospective randomised, double-blinded feasibility trial. Setting: Four HD units in the United Kingdom.: Participants and interventions Ninety HD patients randomised (1:1) to standard care (dialysate temperature 36.5C) or intervention (dialysate temperature 35°C) for 12 months. Primary outcome measure: Change in cognition using the Montreal Cognitive Assessment (MoCA). Secondary outcome measures: Recruitment and attrition rates, reasons for non-recruitment, frequency of intradialytic hypotension, depressive symptom scores, patient and carers burden, a detailed computerised cognitive test and QOL assessments. Analysis: mixed method approach, utilising measurement of cognition, questionnaires, physiological measurements and semi-structured interviews.Discussion: The results of this feasibility trial will inform the design of a future adequately powered substantive trial investigating the effect of dialysate cooling on prevention and/ or slowing in cognitive decline in patients undergoing haemodialysis using a computerised battery of neuro-cognitive tests. The main hypothesis that would be tested in this future trial is that patients treated with regular conventional haemodialysis will have a lesser decline in cognitive function and a better quality of life over one year by using cooler dialysis fluid at 35°C, versus a standard dialysis fluid temperature of 36.5°C. This also should reflect in improvements in their abilities for activities of daily living and therefore, reduce carers' burden. If successful, the treatment could be universally applied at no extra cost.Trial registration: ClinicalTrials.gov Identifier: NCT03645733. Registered retrospectively on August 24, 2018. URL: https://clinicaltrials.gov/ct2/show/NCT03645733
Wogonin inhibits in vitro herpes simplex virus type 1 and 2 infection by modulating cellular NF-κB and MAPK pathways
Authors: Chu Ying , Lv Xiaowen , Zhang Longfeng , Fu Xingli , Song Siwei , Su Airong , Chen Deyan , Xu Lianhong , Wang Yongfang , Wu Zhiwei , Yun Zhihua 
Published: July 2020

Abstract
Background: Wogonin, a natural flavonoid-like chemical compound, exhibits anti-inflammatory, antitumor, antiviral, neuroprotective, and anxiolytic effects by modulating a variety of cellular signaling pathways including PI3K-Akt, p53, nuclear factor κB (NF-κB), mitogen-activated protein kinase (MAPK) pathways. In this study, its antiviral effect against herpes simplex virus (HSV) type 1 and 2 (HSV-1 and HSV-2) replication was investigated.Results: Wogonin suppressed HSV-2-induced cytopathic effect (CPE) and reduced viral mRNA transcription, viral protein synthesis, and infectious virion particle titers in a dose-dependent manner. A time-of-drug-addition assay demonstrated that wogonin acted as a postentry viral inhibitor. Wogonin also significantly reduced HSV-induced NF-κB and MAPK pathway activation, which has previously been demonstrated to be important for viral replication. Conclusions: Our results suggest that the anti-herpes effect of wogonin may be mediated by modulation of cellular NF-κB and JNK/p38 MAPK pathways and imply that wogonin may be useful as an anti-HSV agent.
Teladorsagia circumcincta beta tubulin: the presence of the E198L polymorphism on its own is associated with benzimidazole resistance
Authors: Valladares Maria Martinez , Valderas-García Elora , Gandasegui Javier , Skuce Philip , Morrison Alison , de Agüero Verónica Castilla Gómez , Cambra-Pellejà Maria , Balaña-Fouce Rafael , Vázquez Francisco A. Rojo 
Published: July 2020

Abstract
Background . Benzimidazole resistance is associated with isotype-1 β-tubulin gene F200Y, E198A and F167Y SNPs. In this study, the recently described polymorphism E198L was reported and analysed in Teladorsagia circumcincta . Methods . The benzimidazole phenotypic resistance was measured by the Faecal Egg Count Reduction Test (FECRT) and the Egg Hatch Test (EHT) using a discriminating dose (DD) in 39 sheep flocks. Around 1,000 larvae collected before and after treatment were used for DNA extraction. The resistant species identified in all flocks was T. circumcincta . The resistance alleles frequencies were measured for F200Y and E198A. A 371 bp fragment of the isotype-1 β-tubulin gene was analysed, including the three codons of interest, and a new pyrosequencing assay was designed for testing E198L. Results . The percentage of resistant flocks was 35% by FECRT or 26% by EHT, however F200Y and E198A SNPs were absent in T. circumcincta . The amplification of a 371 bp fragment confirmed the absence of F167Y and F200Y in 6 resistant flocks. Regarding codon 198, all samples after treatment carried a leucine (CTA). A pyrosequencing assay analysed the allele frequencies for the first two bases at codon 198 independently, G/C and A/T. The correlation between C and T frequencies was almost 1 (r = 0.929; p = 0.000) and the mean value of both was calculated to measure the leucine frequency; this value ranged between 10.4 and 80.7% before treatment, and from 82.3 to 92.8% after treatment. High and similar correlations were reported between the genotypic variables (C frequency, T frequency or mean of both frequencies) and phenotypic resistance (r > 0.720; p = 0.000), although negatively associated with the FECRT and positively with the EHT. According to multivariate linear regression analysis, the T frequency was the most significant variable influencing the phenotypic resistance (FECRT or EHT; p = 0.000). In the EHT, 67.1% of the phenotypic variability is associated with the T frequency but in the FECRT only 33.4%; therefore, the EHT using a DD seems to detect the genotypic resistance more accurately than the FECRT. Conclusions . The E198L polymorphism can confer BZ resistance on its own in T. circumcincta .
Heat Dissipation Performance of Loader-Digger Cooling System based on Simulation and Test Data
Authors: Li Lei , Chen Xi , Liu Di , Zhou Hong-gen , Wu Haiyan 
Published: July 2020

Abstract
High temperature of the radiator group is harmful to the power system and hydraulic system. In order to improve the heat dissipation performance of the loader, the flow field characteristics of the cooling chamber are analyzed by simulation and heat balance test. Firstly, the mathematical model of heat flow is established. Secondly, the flow field in the cooling chamber under different speeds is simulated based on CFX. And then the influence of fan position and internal flow field distribution on radiator performance is studied. Through the simulation of four different distances, it is concluded that the optimal distance between cooling fan and radiator is 76mm. Finally, a testing system is built for the temperature acquisition of engine water radiator, torque converter oil radiator, hydraulic oil radiator and air-to-air cooler of the hood structure, and then the simulation results are verified. The test results show that the heat dissipation performance of the whole machine meets the requirements after optimization, and the optimized scheme can make the loader-digger in an efficient and energy-saving operation state.
Preliminary evidence of imaging of chemokine receptor-4 targeted PET/CT with [68Ga]pentixafor in non-Hodgkin lymphoma: comparison to [18F]FDG
Authors: Pan Qingqing , Luo Yaping , Zhang Yan , Chang Long , Li Ji , Cao Xinxin , Li Jian , Li Fang 
Published: July 2020

Abstract
Background: In order to study the CXCR4 expression with [68Ga]pentixafor PET in different types of non-Hodgkin lymphoma, we performed a retrospective study to describe the [68Ga]pentixafor PET/CT imaging in a spectrum of lymphomas and to compare it with [18F]FDG PET/CT. Results: Twenty-seven patients with newly diagnosed non-Hodgkin lymphoma were recruited retrospectively. [68Ga]pentixafor PET showed increased radioactivity in lymphoplasmacytic lymphoma (n = 8), marginal zone lymphoma (n = 4), diffuse large B cell lymphoma (n = 3), follicular lymphoma (n = 2), mantle cell lymphoma (n = 1), unclassified indolent B cell lymphoma (n = 3) and enteropathy associated T cell lymphoma (n = 3). However, peripheral T cell lymphoma, not otherwise specified (n = 1), and NK/T cell lymphoma (n = 2) were not avid for [68Ga]pentixafor. In comparison to [18F]FDG PET, [68Ga]pentixafor PET demonstrated more extensive disease and higher radioactivity in lymphoplasmacytic lymphoma and marginal zone lymphoma. Conclusion: CXCR4 expression varies in different types of non-Hodgkin lymphoma. Overexpression of CXCR4 was detected with [68Ga]pentixafor PET/CT in lymphoplasmacytic lymphoma, marginal zone lymphoma, diffuse large B cell lymphoma, follicular lymphoma, mantle cell lymphoma, unclassified indolent B cell lymphoma, and enteropathy associated T cell lymphoma. The uptake of [68Ga]pentixafor was higher than [18F]FDG in lymphoplasmacytic lymphoma and marginal zone lymphoma.
mRNA profile provides novel insights into stress adaptation in mud crab megalopa, Scylla paramamosain after salinity stress
Authors: Zhang Yin , Wu Qingyang , Fang Shaobin , Li Shengkang , Zheng Huaiping , Zhang Yueling , Ikhwanuddin Mhd , Ma Hongyu 
Published: July 2020

Abstract
Background
Mud crab, Scylla paramamosain, a euryhaline crustacean species, mainly inhabits the Indo-Western Pacific region. Wild mud crab spawn in high-salt condition and the salinity reduced with the growth of the hatching larvae. When the larvae grow up to megalopa, they migrate back to estuaries and coasts in virtue of the flood tide, settle and recruit adult habitats and metamorphose into the crablet stage. Adult crab can even survive in a wide salinity of 0–35 ppt. To investigate the mRNA profile after salinity stress, S. paramamosain megalopa were exposed to different salinity seawater (low, 14 ppt; control, 25 ppt; high, 39 ppt).
Results
Firstly, from the expression profiles of Na+/K+/2Cl- cotransporter, chloride channel protein 2 and ABC transporter. It turned out that the 24 h might be the most influenced duration in the short-term stress. We collected megalopa under different salinity for 24 h and then submitted to mRNA profiling. Totally, 57.87 Gb Clean Data were obtained. The comparative genomic analysis detected 342 differentially expressed genes (DEGs). According to the most significantly DEGs such as gamma-butyrobetaine dioxygenase-like, facilitated trehalose transporter Tret1, sodium/potassium-transporting ATPase subunit alpha, rhodanese 1-like protein, etc. and the significantly enriched pathways including lysine degradation, choline metabolism in cancer, phospholipase D signaling pathway, Fc gamma R-mediated phagocytosis, and sphingolipid signaling pathway. it indicated that in the short-term salinity stress, the megalopa might regulate some mechanism such as metabolism, immunity responses, osmoregulation to adapt to the alteration of the environment.
Conclusions
It indicated that the megalopa as a crab larvae has the ability to protect itself from the short-term salinity stress so as to live a migration life. This study mines beneficial genetic resources for research on crustacean and provides novel insight into understanding the molecular mechanism of stress adaptation of crustacean responses to environmental stressors.
Effect of Genetic Polymorphisms of CYP2C19 on the Steady-state Serum Concentrations of Valproic Acid in Chinese Han Patients With Schizophrenia
Authors: WANG Shengdong , Li Jing , Song Mingfen , Yan Pan , Ju Xuan , Liu Jian , Wang Chengpeng , Shi Jianfei 
Published: July 2020

Abstract
Valproic acid is an anticonvulsant, which is also widely used for treating psychiatric disorders. Some clinical trials have demonstrated benefits of valproic acid augmentation therapy in schizophrenia. Interindividual variability in valproic acid dose and serum concentration may reflect functional consequences of genetic polymorphisms in genes encoding drug-metabolizing enzymes. The aim of this study was to determine the relationship between serum concentrations of valproic acid and single nucleotide polymorphisms of the cytochrome P450 (CYP) 2C19 gene in patients with schizophrenia. All patients had been receiving fixed dose of valproic acid for at least 2 weeks. The daily doses were 0.5–1.5 g. No other drugs except olanzapine were coadministered. Serum concentrations of valproic acid were measured using the ultra-high performance liquid chromatography method with mass-spectrometric detection. The CYP2C19 (CYP2C19*2 G681A and CYP2C19*3 G636A) genotypes were identified by real-time PCR analyses. The mean concentration/dose ratios of valproic acid was significantly higher in patients with 1 (P = 0.029) or 2 (P = 0.007) mutated alleles for CYP2C19 than in those without mutated alleles. The mean concentration/dose ratios of valproic acid was significantly higher in patients with CYP2C19 *1/*2 genotype (P = 0.029) or CYP2C19 *2/*3 genotype (P = 0.014) than in those with CYP2C12 *1/*1 genotype. The findings of this study suggest that CYP2C19 genotypes play an important role in controlling steady-state serum concentrations of valproic acid in Chinese Han population.