bluuebunny/crossref_metadata_2025_split huggingface dataset:
Decades of Research Supporting Malaria Control and Elimination in China: A Bibliometric Analysis of Academic Articles Published in Chinese From 1980 to 2019
Authors: Du Yan-Qiu , Zhu Guo-Ding , Cao Jun , Huang Jia-Yan 
Published: October 2020

Abstract
Background: China has accumulated a lot of experience on malaria control and elimination in the past few decades. Many research papers have been published in Chinese journals. This study intends to quantitatively analyze these local journals based on the bibliometric analysis to obtain the development path and experience of malaria control and elimination in China.Methods: A long-term, multi-stage bibliometric analysis was implemented. Research articles published in Chinese journals from 1980 to 2019 were retrieved from Wanfang database and China National Knowledge Infrastructure (CNKI). Year of publication, journal name and keywords were extracted by the Bibliographic Items Co-occurrence Matrix Builder (BICOMB). We defined the K/A ratio (the percentage of a keyword frequency in the number of articles within a certain period) as an indicator for measuring the popularity of a keyword in different decades. And we used the software VOSviewer to make keyword co-occurrence network maps.Results: A total of 16,290 articles were included. The overall trend of articles continues to rise. However, the articles published in the past three years had continued to decline. There are two kinds of trends of the keyword frequency between different decades. The K/A ratio of keywords such as ‘Plasmodium falciparum’ continued to decline (17.05% in 1980s, 13.04% in 1990s, 9.86% in 2000s, 5.28% in 2010s), but ‘imported case’ and ‘surveillance’ continued to rise. Drug resistance always was a concern. The keyword co-occurrence network maps showed that the themes in malaria research were becoming more diverse, and the degree of multidisciplinary cooperation was gradually deepening.Conclusion: This bibliometric analysis reveals the trends in malaria research in China over the past 40 years. The results suggest the high attention on the investigation, multidisciplinary participation and drug resistance for researchers and policymakers in malaria-epidemic areas. And the results also provided domestic experts with qualitative evidence for the summary of China's experience on malaria control and elimination.
Ultrafast current and field driven domain-wall dynamics in van der Waals antiferromagnet MnPS3
Authors: Alliati Ignacio , Evans Richard , Novoselov Kostya , Santos Elton 
Published: October 2020

Abstract
The discovery of magnetism in two-dimensional (2D) van der Waals (vdW) materials1–4 has flourished a new endeavour of fundamental problems in magnetism as well as potential applications in computing, sensing and storage technologies5–10. Of particular interest are antiferromagnets 11, 12, which due to their intrinsic antiferromagnetic exchange coupling show several advantages in relation to ferromagnets such as robustness against external magnetic perturbations. This property is one of the cornerstones of antiferromagnets13 and implies that in formation stored in antiferromagnetic domains is invisible to applied magnetic fields preventing it from being erased or manipulated. Here we show that, despite this fundamental understanding, the magnetic domains of recently discovered 2D vdW MnPS3 antiferromagnet14, 15 can be controlled via external magnetic fields and electric currents. We realize ultrafast domain-wall dynamics with velocities up to ∼1500 m s−1 and ∼3000 m s−1 respectively to a broad range of field magnitudes (0.0001−22 T) and current densities (108 − 1010 A cm−2). Both domain wall dynamics are determined by the edge terminations which generated uncompensated spins following the underlying symmetry of the honeycomb structure. We find that edge atoms belonging to different magnetic sublattices function as geometrical constrictions preventing the displacement of the wall, whereas having atoms of the same sublattice at both edges of the material allows for the field-driven domain wall motion which is only limited by the spin-flop transition of the antiferromagnet beyond 25 T. Conversely, electric currents can induce motion of domain walls in most of the edges except those where the two sublattices are present at the borders (e.g. armchair edges). Furthermore, the orientation of the layer relative to the current flow provides an additional degree of freedom for controlling and manipulating magnetic domains in MnPS3. Our results indicate that the implementation of 2D vdW antiferromagnets in real applications requires the engineering of the layer edges which enables an unprecedented functional feature in ultrathin device platforms.
Establishment of a transient transfection system for Babesia sp. Xinjiang with the use of homologous promoters
Authors: Wang Xiaoxing , Wang Jinming , Liu Junlong , Yang Jifei , Zhaoyong LV , Liu Aihong , Li Youquan , Li Yubin , Lan Haiou , Liu Guangyuan , Luo Jianxun , Guan Guiquan , Yin Hong 
Published: October 2020

Abstract
BackgroundBabesia species, the agentic pathogens of human and animal babesiosis, are spread worldwide. Over the last decade, genetic manipulation approaches have been applied with many protozoan parasites, including Plasmodium falciparum, Trypanosoma cruzi, Cryptosporidium parvum, Theileria annulata, Theileria parva, Babesia bovis, Babesia bigemina, Babesia ovata, Babesia gibsoni, and Babesia ovis. For Babesia sp. Xinjiang (Bxj), which is the causative pathogen of ovine babesiosis mainly in China, the efficiency of these techniques remain unclear. MethodsFirst, a plasmid bearing the elongation factor-1 alpha promoter, as well as the firefly luciferase reporter gene and rap stop region were transfected into Bxj by electroporation and nucleoporation to determine the most suitable transfection solution. Then, six program setting were evaluated to confirm the best for Bxj transient transfection and a series of different amounts of plasmid DNA were applied to generate relatively high luminescence values. Finally, the activities of four promoters derived from Bxj were evaluated using the developed transient transfection system. ConclusionsIn this study, a transient transfection system for Bxj was optimized. These findings provided critical information for Bxj genetic manipulation, as an essential tool to identify virulence factors and to further elucidate the basic biology of pathogens.
Health Research Priority Setting in Uganda: A Qualitative Study Describing and Evaluating the Processes
Authors: Kapiriri Lydia , Ekochu Elizabeth Asege , Nabudere Harriet 
Published: October 2020

Abstract
Background: Over the years, several approaches to health research priority setting (HRPS) have been devised and applied in low-incomes countries for national level research prioritization. However, there is often a disconnect between the evidence that health policymakers require for decision-making and the research that receives funding. There is a need for countries to evaluate their prioritization processes to support strategies to translate priority setting into policy practice. While health research priority setting is continuously carried out in Uganda, these processes are rarely reported on the scholarly literature and have not been evaluated. This study aimed to describe and evaluate HRPS in Uganda. Methods: This was a qualitative case study consisting of document review and key informant interviews with stakeholders who had either directly participated in or had specialized knowledge of HRPS in Uganda.Results: While Uganda has established and legitimized a National health research organization to set health research priorities, coordinate and provide oversight for health research in the country, several institutions independently conduct their own health research priority setting. The evaluation revealed that while the priority setting processes are often based on systematic approaches and tools and tended to be evidence based, most of the prioritization processes lacked stakeholder involvement and implementation. Moreover, the priorities were not publicized and none had mechanisms for appeals or revisions. In only one case were the priorities implemented.Conclusions: The availability of strong political commitment and a national priority setting institution is an opportunity for strengthening health research priority setting. There should be increased support for the institution to enable it to carry out its duties. The institution should not only invest in participatory, systematic health research priority setting and implementation but evaluation as well in order for them to identify areas for improvement.
Anxiety and Its Influencing Factors in Methadone Maintenance Treatment Users
Authors: Cao Penghui , Zhang Zhaohua , Zhong Jun , Xu Shichao , Huang Qiaofang , Fan Ni 
Published: October 2020

Abstract
Background: Anxiety, a major factor that affects the therapeutic effect and dropout rate of methadone maintenance treatment, has a high prevalence among MMT users. This study aims to investigate the prevalence of anxiety in MMT users and explore the main influencing factors of anxiety of methadone maintenance treatment users.Methods: 177 methadone maintenance treatment users in Guangzhou, China were evaluated. The socio-demographic, duration and MMT-related characteristics were documented. Anxiety, quality of life and sleep quality were evaluated by Beck Anxiety inventory (BAI), the Quality of Life-Drug Addiction (QOL-DA) and Pittsburgh Sleep Quality Index (PSQI) respectively. The correlation between different factors and BAI score was also analyzed.Results: The BAI total score, QOL-DA score, PSQI score were 7.1±8.2, 163.5±21.4, 6.0±4.0 respectively. 30.5% of the subjects showed mild to severe anxiety. Treatment interruption, QOL-DA score and PSQI score had strong correlations with the score of BAI, with correlation coefficients of 0.17, -0.08 and 0.50 respectively.Conclusions: Anxiety symptoms were commonly presented in MMT users. Treatment interruption, quality of life and sleep quality are the major factors affecting anxiety of MMT users.
Visceral Leishmaniasis Outbreaks in Bihar: Community-level Investigations in the Context of Elimination of Kala-azar as a Public Health Problem
Authors: Priyamvada Khushbu , Bindroo Joy , Sharma Madan Prashad , Chapman Lloyd , Dubey Pushkar , Mahapatra Tanmay , Hightower Allen , Bern Caryn , Srikant Sridhar 
Published: October 2020

Abstract
Background: With visceral leishmaniasis (VL) incidence at its lowest level since the 1960s, increasing attention has turned to early detection and investigation of outbreaks. Methods: Outbreak investigations were triggered by recognition of case clusters in the VL surveillance system established for the elimination program. Investigations included ascertainment of all VL cases by date of fever onset, household mapping and structured collection of risk factor data. Results: VL outbreaks were investigated in 13 villages in 10 blocks of 7 districts. Data were collected for 20,670 individuals, of whom 272 were diagnosed with VL between 2012 and 2019. Risk was significantly higher among 10-19 year-olds and adults 35 or older compared to children younger than 10 years. Outbreak confirmation triggered vector control activities and heightened surveillance. VL cases strongly clustered in tolas (hamlets within villages) in which >66% of residents self-identified as scheduled caste or scheduled tribe (SC/ST); 79.8% of VL cases occurred in SC/ST tolas whereas only 24.2% of the population resided in them. Other significant risk factors included being an unskilled non-agricultural laborer, migration for work in a brick kiln, living in a kuccha (mud brick) house, household crowding, habitually sleeping outside or on the ground, and open defecation. Conclusions: Our data highlight the importance of sensitive surveillance with triggers for case cluster detection and rapid, careful outbreak investigations to better respond to ongoing and new transmission. The strong association with SC/ST tolas suggests that efforts should focus on enhanced surveillance in these disadvantaged communities.
Retrospective Evaluation of Vector-borne Infections in Cats Living in Germany (2012-2020)
Authors: Schäfer Ingo , Kohn Barbara , Volkmann Maria , Müller Elisabeth 
Published: October 2020

Abstract
Background: Blood-feeding arthropods can transmit parasitic, bacterial, or viral pathogens to domestic animals and wildlife. Vector-borne infections are gaining significance due to the increase of travel, import of domestic animals from abroad, and due to the changing climate in Europe. The main objective of this retrospective study was to assess the prevalence of some vector-borne infections in cats in which a ‘Feline Travel Profile’ had been conducted. Methods: This retrospective study included test results from cats for which a ‘Feline Travel Profile’ established by the laboratory LABOKLIN had been requested by veterinarians in Germany between April 2012 and March 2020. This above-mentioned diagnostic panel contains direct detection methods via PCR for Hepatozoon spp. and Dirofilaria spp. as well as indirect detection methods via IFAT for Ehrlichia spp. and Leishmania spp. The profile was expanded to include an IFAT for Rickettsia spp. from July 2015 onwards. The prevalence of the different vector-borne infectious agents was calculated. Results: A total of 624 cats were tested using the ‘Feline Travel Profile’. Serological samples for indirect detection methods were available for all 624 cats, EDTA-samples for direct detection methods for 618 cats. Positive test results were as follows: Ehrlichia spp. IFAT 73 out of 624 (12%), Leishmania spp. IFAT 22 out of 624 (4%), Hepatozoon spp. PCR 53 out of 618 (9%), Dirofilaria spp. PCR 1 out of 618 cats (0.2%) and, tested from July 2015 onwards, Rickettsia spp. IFAT 52 out of 467 cats (11%). At least one infection was present in 175 out of 624 cats. Three coinfections were detected before 2015; after including the Rickettsia spp. test results there were 19 cats with confections (in 14 out of these 19 cats Rickettsia spp. were involved).Conclusions: 175 out of 624 cats (28%) were tested positive for at least one vector-borne pathogen. Infections with multiple pathogens could be detected in 4% of the cats from 2012 to 2020. The data emphasizes the importance of considering the above-mentioned vector-borne infections as potential differential diagnoses in cats.
Erdheim-Chester Disease in a 48-Year Old Woman with “An Unknown Tumour of the Heart:” An Autopsy Report.
Authors: Lynggård Louise Andersen , Nørgaard Martin Agge , Fog Lars , Baandrup Ulrik 
Published: October 2020

Abstract
Erdheim-Chester disease (ECD) is a rare non-Langerhans cell histiocytosis. ECD is considered a potentially severe multi-systemic disease with life-threatening manifestations due to the compression of normal structures. Recently, mutation of the proto-oncogene BRAF (BRAFV600E) has been found in 100% of cases. The common sites of involvement are the skeleton, central nervous system, cardiovascular system, lungs, retroperitoneum and skin. We present the autopsy case of a 48-year old caucasian woman with an unknown tumour of the heart, where autopsy revealed the diagnosis of ECD. The clinical, radiological, and pathological manifestations associated with ECD are highlighted.
Case Report: A Case of Hematuria Exfoliative Cytological Examination Easily Misdiagnosed as Malignant Tumor
Authors: Chen Xian , Chen Yuzhu , Li Juan , Wang Yi , Huang Yefang 
Published: October 2020

Abstract
BackgroundThe incidence of urogenital fistula, whose typical manifestations are cyclic hematuria, absence of urinary incontinence and no vaginal bleeding, is on the rise due to gynecological surgery. Those patients who often present to the urologist for hematuriae are prone to be misdiagnosed as urogenital disorders. Case presentationThis article reports a case of vesicouterine fistula patient whose three regular urine exfoliative cytology examinations all found a large number of nest-like cell clusters. After a comprehensive understanding of the patient’s medical history and auxiliary examination, exfoliated cells were identified as the endometrial glands and mesenchymal cells and the probability of malignant tumors was excluded finally.ConclusionsFor pathological diagnosis, a thorough acquirement of the patient’s medical history and relevant auxiliary examinations are extremely significant for the accuracy of pathological diagnosis.
The Role of Microglia Membrane Potential in Chemotaxis
Authors: Laprell Laura , Schulze Christian , Brehme Marie-Luise , Oertner Thomas G. 
Published: October 2020

Abstract
Microglia react to danger signals by rapid and targeted extension of cellular processes towards the source of the signal. This positive chemotactic response is accompanied by a hyperpolarization of the microglia membrane. Here we show that optogenetic depolarization of microglia has little effect on baseline motility, but significantly slows down the chemotactic response. Reducing the extracellular Ca2+ concentration mimics the effect of optogenetic depolarization. As the membrane potential sets the driving force for Ca2+ entry, hyperpolarization is an integral part of rapid stimulus-response coupling in microglia. Compared to typical excitable cells such as neurons, the sign of the activating response is inverted in microglia, leading to inhibition by depolarizing channelrhodopsins.
ITRAQ-based Bioinformatics Analysis Reveals the Potential Anticancer Effects of ATP4B&nbsp;in Gastric Cancer
Authors: Li Yangjie , Pan Yuanming , Wang Jianxun , Zuo Tao , Zhang Lishu , Feng Xiutang , Kang Qian , Lu Xiaojuan , Sheng Jianqiu , He Yuqi , Wang Jiheng 
Published: October 2020

Abstract
Background: Gastric cancer (GC) is one of the major malignancies of gastrointestinal tract. Hydrogen-potassium ATPase beta (ATP4B) gene is aberrantly downexpressed in gastric cancer that is associated with worse disease outcome. The objective of this study was to investigate the biological significance of ATP4B in GC carcinogenesis and development. Methods: The expression level of ATP4B was analyzed via clinical tissues and TCGA database. Then, we overexpressed ATP4B in SGC7901 and utilized isobaric Tags for Relative and Absolute Quantitation (iTRAQ) technique validate the ATP4B-regulated proteomics profile alterations. Bioinformatics analysis was performed to evaluate the biological processes of ATP4B in GC. Western blot was used for the verification of significant downstream proteins of ATP4B based on bioinformatics analysis data.Results: We identified 293 differentially expressed proteins between the ATP4B overexpressing and control groups in SGC7901, including 145 upregulated proteins and 148 downregulated proteins. GO enrichment analysis indicated that ATP4B-modulating downstream proteins were primarily related to mitochondria function and metabolism. ATP4B-induced enrichments of biological functions were partly associated with suppressing tumor advancement, illustrating an inhibitory role for ATP4B in the progression of GC. Co-expression interaction network analysis exhibited the significant alterations in p53 and STAT3/NF-κB signaling pathway. Consistently, KEGG pathway analysis showed that DEPs are enriched in cell metabolism and cancer-related signaling pathway. Western blot validated the activation of p53 pathway and the inhibition of NF-κB /CD44 pathway after ATP4B overexpressing in GC cells.Conclusion: ATP4B plays a critical anticancer effect by regulating p53/NF-κΒ/mitochondrial pathway. Our data suggested a novel role and mechanism for ATP4B in GC progression.
An Uncommon Etiology for Pleural Effusion with Rib Lesion in a 78-year-old Woman: A Case Report
Authors: Qin De-an , Ren Xiao-qiang , Jiang Jie , Wang Yun-peng 
Published: October 2020

Abstract
Background: Pleural effusion with rib lesion is generally considered as metastasis of thoracic carcinoma or rib tuberculosis and tuberculous pleuritis. Myelomatous pleural effusion with rib lesion is rare and poses a great diagnostic challenge. We described an easily-misdiagnosed extrapulmonary disease with concomitant pulmonary and rib manifestations, bilateral pleural effusion with lytic rib lesion in multiple myeloma, in order to raise awareness of this disease and avoid misdiagnose. Case presentation: A 78-year-old woman was referred to the thoracic department with chest distress, breathlessness, poor appetite and weight loss for 3 months. Chest computed tomography demonstrated bilateral pleural effusion and lytic lesion on the left 5th rib. Whole-body bone scan showed the intense uptake lesions on the sixth, seventh vertebrae and a central defect with the peripheral uptake of the "donut"-like change sign on the left 5th rib. Percutaneous CT-guided core biopsy for the rib lesion was performed and the diagnosis was multiple myeloma. Combined chemotherapy and supportive treatment were prescribed. She did not respond to the therapy and died 3 months later due to pleural cavity infection and cardiopulmonary failure.Conclusion: Some uncommon extrapulmonary diseases with concomitant pulmonary and rib manifestations should be reminded in order to avoid misdiagnose. Extramedullary multiple myeloma can affect any tissue and is an aggressive entity with poor prognosis. Percutaneous CT-guided core biopsy for the rib lesion is of higher positive rate than pleural fluid cytology and more minimally invasive than pleural biopsy via thoracoscope or rib excision biopsy.
Rituximab for Immune Checkpoint Inhibitor Myasthenia Gravis
Authors: Verma Neha , Jaffer Muhammad , Sharda Esha , Pina Yolanda , Ramsakal Asha , Vogelbaum Michael , Forsyth Peter , Peguero Edwin , Mokhtari Sepideh 
Published: October 2020

Abstract
Importance: The use of immune checkpoint inhibitors (ICIs) in the treatment of multiple cancers have gained prominence due to their high efficacy. However, neurological immune-related adverse events (irAEs) such as myasthenia gravis (MG) have been associated with ICI therapy. Most of these neurological irAEs are rare, and in many cases, their diagnoses and management can be challenging. Observations: We present a case of a 70-year-old woman with Stage IIIC melanoma who developed a new onset of gradually progressive dyspnea, diplopia, and bilateral ptosis following treatment with one cycle of nivolumab and ipilimumab (Nivo+Ipi). She was diagnosed with MG via positive serum acetylcholine receptor (AChR) antibodies. She had developed a severe dyspnea at rest, which was refractory to multiple immune-suppressive therapies including prednisone, pyridostigmine, and intravenous immunoglobulin (IVIG). Subsequently, she was treated with rituximab 375 mg/m2 monthly every 4 weeks with significant improvement of her symptoms within 48 hours each time.Conclusions and Relevance: As the implementation of immunotherapy increases in medical practice, irAEs may become more apparent. When first-line therapies are not adequate, other alternative therapies should be explored. This case of MG as an irAE shows that rituximab can provide potential benefit to treat patients with immunotherapy-induced MG who are refractory to other standard treatments. Prospective studies are needed to further evaluate the efficacy of Rituximab irAEs.