bluuebunny/crossref_metadata_2025_split huggingface dataset:
Corneal nerve and brain imaging in mild cognitive impairment and dementia: A cross-sectional study
Authors: Al-Janahi Eiman , Ponirakis Georgios , Hamad Hanadi Al , Vattoth Surjith , Elsotouhy Ahmed , Petropoulos Ioannis N. , Khan Adnan , Gad Hoda , Chandran Mani , Ramadan Marwan , ADN Marwa Elorrabi , ADN Masharig Gadelseed , ADN Rhia Tosino , Gawhale Priya Vitthal , Arasn Anjum , Alobaidi Maryam , Khan Shafi , Manikoth Pravija , Hamdi Yasmin , Osman Susan , Nadukkandiyil Navas , AlSulaiti Essa , Thodi Noushad , Almuhannadi Hamad , Mahfoud Ziyad R. , Own Ahmed , Shuaib Ashfaq , Malik Rayaz 
Published: May 2020

Abstract
Background: Visual rating of medial temporal lobe atrophy (MTA) is an accepted biomarker of Alzheimer’s disease. Corneal confocal microscopy (CCM) is a non-invasive ophthalmic imaging biomarker of neurodegeneration. We sought to determine the diagnostic accuracy of CCM to distinguish mild cognitive impairment (MCI) and dementia from no cognitive impairment (NCI) in relation to MTA rating.Methods: Subjects aged 60-85 with NCI, MCI and dementia were recruited from the geriatric and memory clinic in Rumailah Hospital, Doha, Qatar between 18/09/16 and 31/07/19. The diagnosis of MCI and dementia were based on the International Classification of Diseases (ICD-10) criteria. Subjects underwent cognitive screening using the Montreal Cognitive Assessment (MoCA), CCM and MTA rating on MRI. Statistical tests used were ANOVA with Bonferroni’s post hoc test, kappa statistics and receiver operating characteristic (ROC) curve analysis. A two-tailed P value of ≤0.05 was considered significant.Results: 182 subjects with NCI (n=36), MCI (n=80) and dementia (n=66), including AD (n=19, 28.8%), VaD (n=13, 19.7%) and combined AD (n=34, 51.5%) were studied. CCM showed a progressive reduction in corneal nerve fiber density (CNFD, fibers/mm2) (32.0±7.5 vs 24.5±9.6 vs 20.8±9.3, p<0.0001), branch density (CNBD, branches/mm2) (90.9±46.5 vs 59.3±35.7 vs 53.9±38.7, p<0.0001), and fiber length (CNFL, mm/mm2) (22.9±6.1 vs 17.2±6.5 vs 15.8±7.4, p<0.0001), in subjects with MCI and dementia compared to NCI. The MTA rating in the dementia group was significantly higher compared with the NCI and MCI group in the right (1.9±1.0 vs 0.5±0.6 and 0.6±0.8, p<0.0001) and left (2.1±1.1 vs 0.6±0.7 and 0.8±0.8, p<0.0001) hemispheres. The area under the ROC curve (95% CI) for the diagnostic accuracy of CNFD, CNBD, CNFL vs MTA-right and -left for MCI was 78% (67-90%), 82% (72-92%), 86% (77-95%) vs 53% (36-69%) and 40% (25-55%), respectively, and for dementia it was 85% (76-94%), 84% (75-93%), 85% (76-94%) vs 86% (76-96%) and 82% (72-92%), respectively.Conclusions: The diagnostic accuracy of CCM, a non-invasive ophthalmic biomarker of neurodegeneration was high and comparable with MTA rating for dementia and superior to MTA rating for MCI.
Efficient Preparation of Nanoparticles Reinforced Nickel-based Composite Coating with Highly Preferred (220) Orientation
Authors: Ji Renjie , Jin Hui , Liu Yonghong , Dong Tiancong , Zhang Fan , Zhao Lilong , Wu Xinlei , Sun Qiang , Liu Peng , Dong Hang , Ma Chi , Li Dege , Cai Baoping 
Published: May 2020

Abstract
This paper reports a phenomenon that the grain orientation gradually evolves to (220) with the deposition current density increasing when preparing nanoparticles reinforced nickel-based composite coatings by jet electrodeposition (JED). During the preparation of Ni-SiC composite coatings, the deposition current density increases from 180 A/dm2 to 220 A/dm2, and TC(220) gradually increases from 41.4% to 97.7% correspondingly.The Ni-SiC composite coating with highly preferred (220) orientation has superior corrosion resistance and adhesion force. With the increase of TC(220), the surface roughness is reduced from Ra1.210 μm to Ra0.119 μm, the self-corrosion potential increases from -0.747 V to -0.477 V, the corrosion current density decreases from 54.52 μA·cm2 to 2.76 μA·cm2, the diameter of corrosion pits that after 10 days of immersion in 3.5 wt% NaCl solution decreases from 3.3~22.2 μm to 153~260 nm, and the adhesion of the coating is increased from 20.5 N to 61.6 N.The research results can provide theoretical and technical support for the preparation of new composite coatings with high efficiency, low cost, high adhesion and strong corrosion resistance.
Point-of-care training program on COVID-19 infection prevention and control for pediatric healthcare workers
Authors: Ye Yingzi , Shi Peng , Gui Yonghao , Li Albert M. , Huang Guoying , Xu Hong , Lu Quan , Hong Jianguo , Gu Ying , Hu Xiaojing , Liu Gongbao , Wang Chuanqing , Huang Qing , Zhang Xiaobo 
Published: May 2020

Abstract
Background: To evaluate the effectiveness of training on knowledge and practices of infection prevention and control (IPC) among pediatric health care workers (HCW) in Shanghai, China, in the context of COVID-19 pandemic. Methods: An online training program was designed by the Shanghai Pediatric Clinical Quality Control Center (SPQCC) during the early phase of COVID-19 pandemic on disease knowledge and practice of IPC. Training took place in the 81 partner hospitals affiliated with SPQCC. A 25-item self-administered questionnaire was used to evaluate knowledge gained from the training. Stratified-random sampling was used to select HCW according to three professionals (i.e., pediatricians, nurses and administrators) within each partner hospital. Awareness and knowledge of COVID-19 and its related infection control and practice was assessed by comparing survey results between different types of hospitals, professionals and professional ranks. A higher survey score meant that the respondent was more prepared and knowledgeable about COVID-19 and its infection control measures. Results: Completed questionnaires were returned from 1,062 subjects (385 pediatricians, 410 nurses, and 267 administrators), giving a response rate of 96.5%. Overall, awareness of clinical information related to COVID-19, importance of personal hygiene and isolation policy was high among the respondents. No statistical difference of scores on knowledge of COVID-19, IPC and relevant practice between the tertiary and peripheral hospitals. Among all respondents, middle-ranked health care personnel were most knowledgeable and achieved the highest score. Conclusions: Majority of pediatric HCW showed good recognition and practice in infection protection and control measures. The online training was able to achieve its aim to enhance knowledge and awareness and could have contributed to the zero infection rate among HCW caring for confirmed COVID-19 cases in Shanghai.
The treatment strategy of R0 resection in colorectal cancer with synchronous para-aortic lymph node metastasis
Authors: Ushigome Hajime , Yasui Masayoshi , Ohue Masayuki , Haraguchi Naoaki , Nishimura Junichi , Sugimura Keijirou , Yamamoto Kazuyoshi , Wada Hiroshi , Takahashi Hidenori , Omori Takeshi , Miyata Hiroshi , Takiguchi Shuji 
Published: May 2020

Abstract
Background
Synchronous metastatic para-aortic lymph node (mPALN) dissectionin colorectal cancer has relatively good oncological outcomes, though many patients develop recurrence. Universal prognostic factor remain unclear and no definitive perioperative chemotherapy is available, making the treatment of mPALN controversial. In the present study, we aimed to establish a treatment strategy for synchronous mPALN.
Methods
This retrospective study involved 20 patients with pathological mPALN below the renal vein who underwent R0 resection. Long-term outcomes, recurrence type, and prognostic factors for survival were investigated.
Results
The 5-year overall survival and recurrence-free survival rates were 38% and 25%, respectively. Seventeen patients (85%) developed recurrence, including 13 (76%) within 1 year after surgery, and ~ 70% of all recurrences were multiple recurrences. Four patients (20%) survived > 5 years. Pathological T stage (p = 0.016), time to recurrence (p = 0.006), and recurrence resection (p = 0.008) were identified as prognostic factors for long-term survival.
Conclusions
R0 resection of synchronous mPALN in colorectal cancer resulted in acceptable oncological outcomes, though we found a high rate of early unresectable recurrence. If the recurrence occurs late or isolated, surgical resection should be considered for longer survival.
Trichomes form genotype-specific microbial hotspots in the phyllosphere of tomato
Authors: Kusstatscher Peter , Wicaksono Wisnu Adi , Bergna Alessandro , Cernava Tomislav , Bergau Nick , Tissier Alain , Hause Bettina , Berg Gabriele 
Published: May 2020

Abstract
Background The plant phyllosphere is a well-studied habitat characterized by low nutrient availability and high community dynamics. In contrast, plant trichomes, known for their production of a large number of metabolites, are a yet unexplored habitat for microbes. We analyzed the phyllosphere as well as trichomes of two tomato genotypes (Solanum lycopersicum LA4024, S. habrochaites LA1777) by targeting bacterial 16S rRNA gene fragments.Results Leaves, leaves without trichomes, and trichomes alone harbored similar abundances of bacteria (108- 109 16S rRNA gene copy numbers per gram of sample). In contrast, bacterial diversity was found significantly increased in trichome samples (Shannon index: 4.4 vs. 2.5). Moreover, the community composition was significantly different when assessed with beta diversity analysis and corresponding statistical tests. At the bacterial class level, Alphaproteobacteria (23.6%) were significantly increased, whereas Bacilli (8.6%) were decreased in trichomes. The bacterial family Sphingomonadacea (8.4%) was identified as the most prominent, trichome-specific taxa; Burkholderiaceae and Actinobacteria showed similar pattern. Moreover, Sphingomonas was identified as a central element in the core microbiome of trichome samples, while distinct low-abundant bacterial families including Hymenobacteraceae and Alicyclobacillaceae were exclusively found in trichome samples. Niche preferences were statistically significant for both genotypes and genotype-specific enrichments were further observed.Conclusion Our results provide first evidence of a highly specific trichome microbiome in tomato and show the importance of micro-niches for the structure of bacterial communities on leaves. These findings provide further clues for breeding, plant pathology and protection as well as so far unexplored natural pathogen defense strategies.
Morphological findings in frozen non-neoplastic kidney tissues of patients with kidney cancer from large-scale multicentric studies on genomics of renal cancer
Authors: Abedi-Ardekani Behnoush , Nasrollahzadeh Dariush , Egevad Lars , Banks Rosamonde E , Vasudev Naveen , Holcatova Ivana , Povysil Ctibor , Foretova Lenka , Janout Vladimir , Mates Dana , Jinga Viorel , Petrescu Amelia , Milosavljevic Sasa , Ognjanovic Miodrag , Ognjanovic Simona , Viksna Juris , Warren Anne Y , Lathrop Mark , Riazalhosseini Yasser , Carreira Christine , Chanudet Estelle , McKay James , Brennan Paul , Scélo Ghislaine 
Published: May 2020

Abstract
Background

There are unexplained geographical variations in the incidence of kidney cancer with the high rates reported in Baltic countries, as well as eastern and central Europe. Analysis of non-neoplastic tissues is a way to better understand the carcinogenesis.
Methods

Having access to a rich, well-annotated collection of “tumor/non-tumor” pairs of kidney cancer patients from Czech Republic, Romania, Serbia, United Kingdom, and Russia for studying genomics of kidney cancer, we aimed to analyze morphology of non-neoplastic renal tissue. By applying digital pathology, we performed microscopic examination of 1012 frozen non-neoplastic kidney tissues from patients with renal cell carcinoma. Renal parenchyma was evaluated and scored for the interstitial inflammation and fibrosis, tubular atrophy, glomerulosclerosis and arterial wall thickening, globally called chronic renal parenchymal changes.
Results

Moderate or severe changes was observed in 54 (5.3%) of patients with predominance of occurrence in Romania (OR = 2.67, CI 1.07–6.67) and Serbia (OR = 4.37, CI 1.20-15.96) in reference to those from Russia. Further adjustment for comorbidities, tumor characterstics and stage did not change risk estimates. In multinomial regression model, relative probability of non-glomerular changes were 5.22 times higher for Romania and Serbia compered to Russia.
Conclusion

Our findings show that the frequency of chronic renal parenchymal changes in kidney cancer patients varies by country, significantly more frequent in countries located in central and southeastern Europe where the incidence of kidney cancer has been reported to be high. We suggest that these parenchymal changes, possibly linked to environmental exposures, may be relevant to renal carcinogenesis in these countries.
Integrated metabolomic and transcriptomic analysis of the anthocyanin regulatory networks in Salvia miltiorrhiza Bge. flowers
Authors: Jiang Tao , Zhang Meide , Wen Chunxiu , Xie Xiaoliang , Tian Wei , Wen Saiqun , Lu Ruike , Liu Lingdi 
Published: May 2020

Abstract
Background: The study objectives were to reveal the anthocyanin biosynthesis metabolic pathway in white and purple flowers of Salvia miltiorrhiza using metabolomics and transcriptomics, to identify different anthocyanin metabolites, and to analyze the differentially expressed genes involved in anthocyanin biosynthesis . Results: We analyzed the metabolomics and transcriptomics data of Salvia miltiorrhiza flowers. A total of 1994 differentially expressed genes and 84 flavonoid metabolites were identified between the white and purple flowers of Salvia miltiorrhiza . Integrated analysis of transcriptomic and metabolomics showed that cyanidin 3,5-O-diglucoside, malvidin 3,5-diglucoside, and cyanidin 3-O-galactoside were mainly responsible for the purple flower color of Salvia miltiorrhiza. A total of 100 unigenes encoding 10 enzymes were identified as candidate genes involved in anthocyanin biosynthesis in Salvia miltiorrhiza flowers. The low expression of the ANS gene decreased the anthocyanin content but enhanced the accumulation of flavonoids in Salvia miltiorrhiza flowers. Conclusions: Our results provide valuable information on the anthocyanin metabolites and the candidate genes involved in the anthocyanin biosynthesis pathways in Salvia miltiorrhiza .
Engineering Elizabethkingia meningoseptica sp. F2 for Vitamin K2 production guided by genome analysis.
Authors: Yang Qiang , zheng zhiming , Liu Hui , Wang Peng , Wang Li , Sun Xiaowen , Ni Wenfeng , Wang Han , Tang Hengfang , Zhao Genhai 
Published: May 2020

Abstract
Background
The species in family Elizabethkingia meningoseptica are interesting strain for investigating Vitamin K2 metabolic analysis. However, their genomic sequence, metabolic pathway, potential abilities, and evolutionary status are still unknown.
Results
This study therefore aimed to perform a genome sequencing of Elizabethkingia meningoseptica sp. F2 and further accomplished comparative analysis with other Vitamin K2 strains reveals overall identifying its unique/shared metabolic genes across genomes. The 3,874,794–base pair sequence of Elizabethkingia meningoseptica sp. F2 is presented. Of 3,539 genes annotation was applied. Results of synteny block demonstrated Elizabethkingia meningoseptica sp. F2 shares high levels of synteny with Elizabethkingia meningoseptica ATCC 13253 and Elizabethkingia meningoseptica NBRC 12535. Identification of Vitamin K2 metabolic pathway in Elizabethkingia meningoseptica sp. F2 were also accomplished. In addition, Elizabethkingia meningoseptica sp. F2 was resistant to gentamicin, streptomycin, ampicillin and caramycin, consistent with the presence of multiple genes encoding diverse multidrug efflux pump protein in the genome. Furthermore, By co-overexpression experiments of MenA and MenG, we showed that Vitamin K2 content was enhanced by 37% compared with control strain.
Conclusions
The genome analysis of Elizabethkingia meningoseptica sp. F2 in conjunction with the comparative metabolic pathways analysis among the E.coli, Bacillus subtilis and Streptomyces provided a useful information on the Vitamin K2 biosynthetic pathway and other related pathways at systems level.
Metatranscriptomics and small RNA analysis revealed that viral covert coinfection resulted in disease symptoms reminiscent of rice sterility
Authors: Chao Shufen , Wang Haoran , Yan Qing , Chen Long , Chen Guoqing , Wu Lijuan , Wu Yihong , Zhu Xudong , Meng Baozhong , Feng Guozhong 
Published: May 2020

Abstract
BackgroundViral pathogens are a major threat to stable crop production. The discovery of viral diseases traditionally concerns apparent infection that shows obvious symptoms in crop plants. However, little is known about the covert infection of crop plants by viruses. In this study, we used deep metatranscriptomic sequencing and small RNA analysis to identify covert infection of rice plants by viruses.ResultsOur results showed that introgression of the dominant brown planthopper (BPH) resistance gene Bph3 into the high-yielding but BPH-susceptible indica variety Ms55 via a backcross strategy significantly enhanced resistance to BPH. However, Bph3-carrying backcross lines infested by BPH exhibited panicle enclosure and failed to produce seed at the mature stage, which are typical characteristics of sterile rice plants. Using a metatranscriptomic analysis, we identified six RNA viruses in backcross line Rby1 and eleven RNA viruses in backcross line Rby2, including eight novel viruses that fell within existing families and orders. Furthermore, our small RNA analysis revealed the biogenesis of viral small interfering RNAs that represented active virus infection in rice plants.ConclusionBph3-carrying backcross rice lines are resistant to BPH but are susceptible to viral infection. We identified viral covert coinfection in sterile rice plants by deep metatranscriptomic sequencing and small RNA analysis. Our results suggested that covert coinfection of rice plants by RNA viruses resulted in disease symptoms reminiscent of rice sterility. To develop rice varieties resistant to BPH, it is necessary to introgress genes resistant to not only BPH but also viral infection.
ICT1 Knockdown inhibits osteosarcoma cell proliferation by regulating cell apoptosis through targeting BCL-2
Authors: Pan Xiaohui , Tan Jingxue , Du Rui , Jiang Yuqing , Weng Yiping , Zhou Dong 
Published: May 2020

Abstract
Background

Osteosarcoma (OS) which occurs mainly in the young people is a common malignant bone tumor. Apoptosis is a form of programmed and controlled cell death and promoting apoptosis of OS cells is an important treatment for OS. However, the pathways of controlling apoptosis in OS remain unclear. Immature colon carcinoma transcript-1 (ICT1) which is previously named DS-1 belongs to a family of four putative mitochondrial translation release factors. It controls the termination stage of translation.
Methods

In this study, the function of ICT1 was elucidated by a series of in vivo and in vitro assays. The potential downstream targets of ICT1 in the OS was identified by qRT-PCR and western blotting, while immunohistochemical analysis and rescue experiment were performed to confirm this result.
Results

ICT1 was upregulated in OS, and higher expression of ICT1 was associated with worse overall survival rate. Functional studies suggested that knockdown of ICT1 could inhibit OS cell proliferation in vitro or in vivo. In addition, suppression of ICT1 could promote apoptosis of OS cells. Furthermore, we demonstrated that BCL-2, apoptotic related-genes, is a potential target of ICT1 and BCL-2 overexpression partly reversed the inhibitory effects of ICT1 knockdown on the pro-tumorigenic properties of OS cells in vitro.
Conclusion

The ICT1 protein was overexpressed in the OS and has identified a novel mechanism by which ICT1 inhibits osteosarcoma cell proliferation by regulating cell apoptosis through targeting BCL-2.
Virome of riverside phytocommunity ecosystem of an ancient canal
Authors: Yang Shixing , Shan Tongling , Wang Yan , Yang Jie , Chen Xu , Xiao Yuqing , You Zhenqiang , He Yumin , Zhao Min , Lu Juan , Yang Zijun , Dai Ziyuan , Liu Qi , Yao Yuxin , Lu Xiang , Li Hong , Zhou Rui , Li Wang , Zhou Chenglin , Wang Xiaochun , Shen Quan , Xu Hui , Deng Xutao , Delwart Eric , Zhang Wen 
Published: May 2020

Abstract
Background

The virus community in plants in a local plant ecosystem has remained largely unknown. In this study, we investigated the virus community in these wild and cultivated plants in Zhenjiang ancient canal ecosystem.

Results

using viral metagenomic approach, we investigated the viral community in leaf tissues of 161 plant species belonging in 38 different orders in a local riverside plant ecosystem. We discovered 251 different plant-associated virus genomes which included 88 DNA and 163 RNA viruses belonging to 27 different virus families, orders or unclassified virus groups. The identified viruses include some that are sufficiently divergent to comprise new genera, families, or even orders. Our data indicated that some groups of viruses known to infect non-plant organisms had host switching to infecting plants. Cross-species infection and co-infection of viruses were common in this plant ecosystem.

Conclusions

these data present a view of the viral community in plants present in a local plant ecosystem which is more diverse than that depicted in current classification of plant viruses and provide a solid foundation for studies in virus ecology and evolution in plants.
Dental Faculty’s Knowledge and Attitude regarding COVID-19 disease in Qassim, Saudi Arabia
Authors: Khan Asma Munir , Nawabi Shazia , Javed Muhammad Qasim 
Published: May 2020

Abstract
Background: Present study aimed to explore the knowledge and attitude of dental faculty at Qassim University, regarding novel COVID 19 disease. Methods: The cross-sectional survey was conducted on the faculty at undergraduate dental school. The self-designed e-survey was administered to 78 faculty members to assess their knowledge and attitudes towards the COVID-19 disease. Data analysis was conducted by using SPSS version 23. Descriptive statistics were reported as frequency and percentages. Chi-square test was utilized to identify the correlation between the independent and dependent variables. The inferential statistics (Kruskal-Wallis tests and Mann-Whitney U test) were utilized for assessing the significance between study variables. The association between knowledge and attitude was evaluated by using Spearman’s rank correlation coefficient. Results: A total of 55 faculty members (70.5%) responded. Mean knowledge score was 10± 2.71. 37 (67.3%) respondents showed positive attitude towards COVID-19 while 18(32.7%) displayed negative attitude. The mean attitude score was 4.08±0.50. Significant difference was found in knowledge (p-value=0.04) and attitude (p-value=0.015) of dental faculty based on designation.Conclusions: Qassim University dentists were mindful of the COVID-19 symptoms, means of transmission, Cross-infection control and operative protocols practiced within dental clinics. However, dentists exhibited inadequate knowledge about the specific dental procedures that safeguard the dental staff and patients from COVID-19 in context of current outbreak.