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Madyavanhu N, Shekede MD, Kusangaya S, Pfukenyi DM, Chikerema S, Gwitira I. Bovine anaplasmosis in Zimbabwe: spatio-temporal distribution and environmental drivers. Vet Q 2024; 44:1-16. [PMID: 38279663 PMCID: PMC10823892 DOI: 10.1080/01652176.2024.2306210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 01/10/2024] [Indexed: 01/28/2024] Open
Abstract
Understanding the spatial and temporal distribution of Bovine anaplasmosis is crucial for identifying areas of high prevalence for targeted disease control. This research was aimed at modelling and mapping the B. anaplasmosis potential distribution, and identify hotspots as well as significant variables explaining the occurrence of the disease. The Getis Ord Gi* statistic for Hotspot analysis was used as well as MaxEnt ecological niche modelling. The effects of time, land-use, and agro-ecological regions on B. anaplasmosis occurrence were tested using Analysis of Variance (ANOVA). Results showed that several districts in Zimbabwe are suitable for the occurence of the disease for example Binga, Seke, Buhera, Kwekwe, Gweru, Mhondoro, Chegutu, Sanyati, and in the North: Mbire, Muzarabani, Mt Darwin, Shamva, Bindura, Zvimba and Makonde. Morbidity and mortality hotspots were detected in Gokwe-south, Kwekwe, and Chirumhanzu districts. Binga, Gokwe-south, Gutu, Hurungwe, Mazoe, Nkayi, Shamva, and Kwekwe districts also experienced high disease incidences. Temperature seasonality, precipitation seasonality, mean diurnal range, and isothermality were the most important variables in explaining 93% of B. anaplasmosis distribution. Unlike land-use and agro-ecological regions, time (months) had a significant effect on B. anaplasmosis occurrence with July and September having significantly (p < 0.05) higher cases and deaths than the rest of the months. The results of this study provide insights into the management strategies and control of B. anaplasmosis in Zimbabwe. It is thus concluded that geo-spatial techniques, combined with ecological niche modelling can provide useful insights into disease prevalence and distribution and hence can contribute to effective management and control of B. anaplasmosis in Zimbabwe.
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Affiliation(s)
- Natasher Madyavanhu
- Department of Geography Geospatial Sciences and Earth Observation, Faculty of Science, University of Zimbabwe, Harare, Zimbabwe
| | - Munyaradzi Davis Shekede
- Department of Geography Geospatial Sciences and Earth Observation, Faculty of Science, University of Zimbabwe, Harare, Zimbabwe
- Department of Geospatial Sciences and Earth Observation, Zimbabwe National Geospatial and Space Agency, Harare, Zimbabwe
| | - Samuel Kusangaya
- Department of Geography Geospatial Sciences and Earth Observation, Faculty of Science, University of Zimbabwe, Harare, Zimbabwe
| | - Davies Mubika Pfukenyi
- Department of Veterinary Sciences, Faculty of Animal and Veterinary Sciences, Botswana University of Agriculture and Natural Resources, Gaborone, Botswana
| | - Sylvester Chikerema
- Department of Clinical Veterinary Studies, University of Zimbabwe, Harare, Zimbabwe
| | - Isaiah Gwitira
- Department of Geography Geospatial Sciences and Earth Observation, Faculty of Science, University of Zimbabwe, Harare, Zimbabwe
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Lamattina D, Couto EM, Moya SL, Giuliani MG, Cortés M, Vadell MV, Salomón OD. The perfect storm: Cutaneous leishmaniasis in troops deployed in the Atlantic forest of Argentina. Zoonoses Public Health 2024; 71:267-273. [PMID: 38336960 DOI: 10.1111/zph.13115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 11/02/2023] [Accepted: 01/29/2024] [Indexed: 02/12/2024]
Abstract
American cutaneous leishmaniasis (ACL) is the most prevalent form of leishmaniasis, associated with an ulcerative and stigmatizing mucocutaneous pathology. This study assessed the incidence of Leishmania (Viannia) braziliensis in members of the Argentine Army who were exposed to sandfly bites in Iguazú National Park (INP), northeastern Argentina, during an outbreak of ACL in 2019, and the presence of Leishmania in rodents, opossums and phlebotomine sandflies collected in the area of exposure. Samples from military personnel, wild animals and phlebotomine sandflies were analysed. A total of 20 (40%) patients among the Army personnel and two Akodon montensis rodents (11%) were positive for the presence of Leishmania sp. genes by PCR, while Nyssomyia whitmani and Migonemyia migonei, competent vectors of Leishmania, were also found at the same site. Sequences of hsp70 DNA fragments obtained from human samples confirmed the identity of L. (V.) braziliensis. The risk to which military personnel carrying out activities in the forest are exposed is highlighted, and this risk extends to any worker and visitor who circulates without protection in the INP, coming into contact with transmission "hot spots" due to the concentration of vectors, reservoirs and/or parasites.
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Affiliation(s)
- Daniela Lamattina
- Instituto Nacional de Medicina Tropical (INMeT), Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán", Ministerio de Salud de la Nación, Puerto Iguazú, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Esteban Manuel Couto
- Instituto Nacional de Medicina Tropical (INMeT), Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán", Ministerio de Salud de la Nación, Puerto Iguazú, Argentina
| | - Sofía Lorian Moya
- Instituto Nacional de Medicina Tropical (INMeT), Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán", Ministerio de Salud de la Nación, Puerto Iguazú, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Magalí Gabriela Giuliani
- Instituto Nacional de Medicina Tropical (INMeT), Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán", Ministerio de Salud de la Nación, Puerto Iguazú, Argentina
| | - Micaela Cortés
- Instituto Nacional de Medicina Tropical (INMeT), Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán", Ministerio de Salud de la Nación, Puerto Iguazú, Argentina
| | - María Victoria Vadell
- Instituto Nacional de Medicina Tropical (INMeT), Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán", Ministerio de Salud de la Nación, Puerto Iguazú, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Oscar Daniel Salomón
- Instituto Nacional de Medicina Tropical (INMeT), Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán", Ministerio de Salud de la Nación, Puerto Iguazú, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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Zhang L, Zheng H, Jiang ST, Liu YG, Zhang T, Zhang JW, Lu X, Zhao HT, Sang XT, Xu YY. Worldwide research trends on tumor burden and immunotherapy: a bibliometric analysis. Int J Surg 2024; 110:1699-1710. [PMID: 38181123 PMCID: PMC10942200 DOI: 10.1097/js9.0000000000001022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 12/11/2023] [Indexed: 01/07/2024]
Abstract
Various immunotherapy has been greatly applied to comprehensive treatment of malignant cancer under different degrees of tumor burden. Scientific researchers have gained considerable progress in the relationship between immunotherapy and tumor burden in recent years. This review aimed to explore the prospect and developing trends in the field of tumor burden and immunotherapy from a bibliometric perspective. Articles about tumor burden and immunotherapy were collected from the Web of Science Core Collection (WoSCC) (retrieved on 3 January 2023). The R package 'Bibliometrix' analyzed the primary bibliometric features and created a three-filed plot to display the relationship between institutions, countries, and keywords. VOSviewer was used for co-authorship analysis, co-occurrence analysis, and their visualization. And CiteSpace calculated the citation burst references and keywords. A total of 1030 publications were retrieved from 35 years of scientific researches. The United States (US) and China published the most articles. The most productive journals were Cancer Immunology Immunotherapy and Journal for ImmunoTherapy of Cancer . The top one institution of the highest output was University of Texas MD Anderson Cancer Center. The hot keywords of strong citation burst strength in recent years were 'nivolumab', 'tumor microenvironment', and 'immune checkpoint inhibitor'. The most popular tumor type is melanoma. This bibliometric analysis mapped a basic knowledge structure. The field of tumor burden and immunotherapy is entering a rapid growing stage and keeping it value for future research.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Yi-Yao Xu
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS and PUMC), Beijing, People’s Republic of China
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Guo F, Buler JJ, Smolinsky JA, Wilcove DS. Seasonal patterns and protection status of stopover hotspots for migratory landbirds in the eastern United States. Curr Biol 2024; 34:235-244.e3. [PMID: 38091989 DOI: 10.1016/j.cub.2023.11.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 09/17/2023] [Accepted: 11/15/2023] [Indexed: 01/25/2024]
Abstract
Migratory landbirds in North America are experiencing dramatic population declines. Although considerable research and conservation attention have been directed toward these birds' breeding and wintering grounds, far less is known about the areas used as stopover sites during migration. To address this knowledge gap, we used 5 years of weather surveillance radar data to map seasonal stopover densities of landbirds across the eastern United States during spring and autumn migration. We identified stopover hotspots covering 2.47 million ha that consistently support high densities of migratory landbirds in spring or autumn. However, only 16.7% of these sites are hotspots in both seasons. The distribution of hotspots is shifted eastward in autumn compared with spring. Deciduous forest is the most important habitat type in both seasons, with deciduous forest fragments embedded in broadly deforested regions having the highest probability of being hotspots. The concentration of birds in these forest fragments is stronger in spring, especially in the agricultural Midwest. We found generally higher stopover densities in protected areas than in unprotected areas in both seasons. Nonetheless, only one-third of identified stopover hotspots have some sort of protected status, and more than half of these protected hotspots are subject to extractive uses. A well-distributed network of well-protected stopover areas, complementing conservation efforts on the breeding and wintering grounds, is essential to sustaining healthy populations of migratory landbirds in North America.
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Affiliation(s)
- Fengyi Guo
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA.
| | - Jeffrey J Buler
- Department of Entomology and Wildlife Ecology, University of Delaware, Newark, DE 19716, USA
| | - Jaclyn A Smolinsky
- Department of Entomology and Wildlife Ecology, University of Delaware, Newark, DE 19716, USA
| | - David S Wilcove
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA; Princeton School of Public and International Affairs, Princeton University, Princeton, NJ 08544, USA
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Sang D, Guo J, Meng H, Zhang L, Sang H. Global Trends and Hotspots of Minimally Invasive Surgery in Lumbar Spinal Stenosis: A Bibliometric Analysis. J Pain Res 2024; 17:117-132. [PMID: 38196967 PMCID: PMC10775802 DOI: 10.2147/jpr.s440723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/18/2023] [Indexed: 01/11/2024] Open
Abstract
Objective The popularity of minimally invasive surgery for lumbar spinal stenosis (LSS) has been steadily increasing worldwide. This study aims to conduct a comprehensive bibliometric analysis to identify global trends and hotspots in the research related to this surgical approach. Methods Select articles related to the field that were retrieved from the Web of Science Core Collection (WoSCC) between January 1, 1993 and December 31, 2022. Visualization of networks and in-depth bibliometric analyses, including the number of publications, countries/regions, institutions, journals, authors, keywords, and references, were conducted using VOSviewer and CiteSpace software. Results A total of 1197 papers were identified over a three-decade period, with the highest production year being 2022, which saw 171 papers published. The most prolific countries/regions were the United States (279) and Harvard Medical School (59). Among journals, Spine (3289 citations) was the most cited, while World Neurosurgery (98 publications) had the highest number of publications. Lewandrowski, Kai-Uwe (29 publications) wrote the most articles, and Ahn, Y (239 citations) ranked first among cited authors. The most frequently used keyword was "discectomy", but recent years have shown a strong emergence of keywords such as "microendoscopic decompressive laminotomy", "foraminotomy" and "classification". Conclusion The United States and China have emerged as leaders in the field of minimally invasive surgery for LSS. Endoscopic spinal surgery is recognized as a critical approach, with ongoing research focused on indications, potential complications, minimally invasive anatomical approaches, and outcomes. Furthermore, there is a strong emphasis on optimizing the surgical process, which has become a trending and hot spot in current research. The improvement of surgical techniques is at the forefront of advancements in this field.
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Affiliation(s)
- Dacheng Sang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wannan Medical College, Wuhu, Anhui, 241001, People’s Republic of China
| | - Jinyang Guo
- Department of Orthopaedic Surgery, Chifeng Clinical Medical College of Inner Mongolia Minzu University, Chifeng, Inner Mongolia, 024000, People’s Republic of China
| | - Hanlu Meng
- Department of Orthopaedic Surgery, Chifeng Clinical Medical College of Inner Mongolia Minzu University, Chifeng, Inner Mongolia, 024000, People’s Republic of China
| | - Luofei Zhang
- Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing, 100000, People’s Republic of China
| | - Hongpeng Sang
- Department of Orthopaedic Surgery, Affiliated Hospital of Chifeng University, Chifeng, Inner Mongolia, 024000, People’s Republic of China
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Yurkov AP, Kryukov AA, Gorbunova AO, Kudriashova TR, Kovalchuk AI, Gorenkova AI, Bogdanova EM, Laktionov YV, Zhurbenko PM, Mikhaylova YV, Puzanskiy RK, Bagrova TN, Yakhin OI, Rodionov AV, Shishova MF. Diversity of Arbuscular Mycorrhizal Fungi in Distinct Ecosystems of the North Caucasus, a Temperate Biodiversity Hotspot. J Fungi (Basel) 2023; 10:11. [PMID: 38248921 PMCID: PMC10817546 DOI: 10.3390/jof10010011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/11/2023] [Accepted: 12/19/2023] [Indexed: 01/23/2024] Open
Abstract
BACKGROUND Investigations that are focused on arbuscular mycorrhizal fungus (AMF) biodiversity is still limited. The analysis of the AMF taxa in the North Caucasus, a temperate biodiversity hotspot, used to be limited to the genus level. This study aimed to define the AMF biodiversity at the species level in the North Caucasus biotopes. METHODS The molecular genetic identification of fungi was carried out with ITS1 and ITS2 regions as barcodes via sequencing using Illumina MiSeq, the analysis of phylogenetic trees for individual genera, and searches for operational taxonomic units (OTUs) with identification at the species level. Sequences from MaarjAM and NCBI GenBank were used as references. RESULTS We analyzed >10 million reads in soil samples for three biotopes to estimate fungal biodiversity. Briefly, 50 AMF species belonging to 20 genera were registered. The total number of the AM fungus OTUs for the "Subalpine Meadow" biotope was 171/131, that for "Forest" was 117/60, and that for "River Valley" was 296/221 based on ITS1/ITS2 data. The total number of the AM fungus species (except for virtual taxa) for the "Subalpine Meadow" biotope was 24/19, that for "Forest" was 22/13, and that for "River Valley" was 28/24 based on ITS1/ITS2 data. Greater AMF diversity, as well as number of OTUs and species, in comparison with that of forest biotopes, characterized valley biotopes (disturbed ecosystems; grasslands). The correlation coefficient between "Percentage of annual plants" and "Glomeromycota total reads" r = 0.76 and 0.81 for ITS1 and ITS2, respectively, and the correlation coefficient between "Percentage of annual plants" and "OTUs number (for total species)" was r = 0.67 and 0.77 for ITS1 and ITS2, respectively. CONCLUSION High AMF biodiversity for the river valley can be associated with a higher percentage of annual plants in these biotopes and the active development of restorative successional processes.
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Affiliation(s)
- Andrey P. Yurkov
- Laboratory of Ecology of Symbiotic and Associative Rhizobacteria, All-Russia Research Institute for Agricultural Microbiology, Pushkin, 196608 St. Petersburg, Russia; (A.A.K.); (A.O.G.); (T.R.K.); (A.I.K.); (A.I.G.); (E.M.B.); (Y.V.L.)
| | - Alexey A. Kryukov
- Laboratory of Ecology of Symbiotic and Associative Rhizobacteria, All-Russia Research Institute for Agricultural Microbiology, Pushkin, 196608 St. Petersburg, Russia; (A.A.K.); (A.O.G.); (T.R.K.); (A.I.K.); (A.I.G.); (E.M.B.); (Y.V.L.)
| | - Anastasiia O. Gorbunova
- Laboratory of Ecology of Symbiotic and Associative Rhizobacteria, All-Russia Research Institute for Agricultural Microbiology, Pushkin, 196608 St. Petersburg, Russia; (A.A.K.); (A.O.G.); (T.R.K.); (A.I.K.); (A.I.G.); (E.M.B.); (Y.V.L.)
| | - Tatyana R. Kudriashova
- Laboratory of Ecology of Symbiotic and Associative Rhizobacteria, All-Russia Research Institute for Agricultural Microbiology, Pushkin, 196608 St. Petersburg, Russia; (A.A.K.); (A.O.G.); (T.R.K.); (A.I.K.); (A.I.G.); (E.M.B.); (Y.V.L.)
- Graduate School of Biotechnology and Food Science, Peter the Great St. Petersburg Polytechnic University, 194064 St. Petersburg, Russia
| | - Anastasia I. Kovalchuk
- Laboratory of Ecology of Symbiotic and Associative Rhizobacteria, All-Russia Research Institute for Agricultural Microbiology, Pushkin, 196608 St. Petersburg, Russia; (A.A.K.); (A.O.G.); (T.R.K.); (A.I.K.); (A.I.G.); (E.M.B.); (Y.V.L.)
- Graduate School of Biotechnology and Food Science, Peter the Great St. Petersburg Polytechnic University, 194064 St. Petersburg, Russia
| | - Anastasia I. Gorenkova
- Laboratory of Ecology of Symbiotic and Associative Rhizobacteria, All-Russia Research Institute for Agricultural Microbiology, Pushkin, 196608 St. Petersburg, Russia; (A.A.K.); (A.O.G.); (T.R.K.); (A.I.K.); (A.I.G.); (E.M.B.); (Y.V.L.)
- Faculty of Biology, St. Petersburg State University, 199034 St. Petersburg, Russia;
| | - Ekaterina M. Bogdanova
- Laboratory of Ecology of Symbiotic and Associative Rhizobacteria, All-Russia Research Institute for Agricultural Microbiology, Pushkin, 196608 St. Petersburg, Russia; (A.A.K.); (A.O.G.); (T.R.K.); (A.I.K.); (A.I.G.); (E.M.B.); (Y.V.L.)
- Faculty of Biology, St. Petersburg State University, 199034 St. Petersburg, Russia;
| | - Yuri V. Laktionov
- Laboratory of Ecology of Symbiotic and Associative Rhizobacteria, All-Russia Research Institute for Agricultural Microbiology, Pushkin, 196608 St. Petersburg, Russia; (A.A.K.); (A.O.G.); (T.R.K.); (A.I.K.); (A.I.G.); (E.M.B.); (Y.V.L.)
| | - Peter M. Zhurbenko
- Laboratory of Biosystematics and Cytology, Komarov Botanical Institute of the Russian Academy of Sciences, 197022 St. Petersburg, Russia; (P.M.Z.); (Y.V.M.); (A.V.R.)
| | - Yulia V. Mikhaylova
- Laboratory of Biosystematics and Cytology, Komarov Botanical Institute of the Russian Academy of Sciences, 197022 St. Petersburg, Russia; (P.M.Z.); (Y.V.M.); (A.V.R.)
| | - Roman K. Puzanskiy
- Laboratory of Analytical Phytochemistry, Komarov Botanical Institute of the Russian Academy of Sciences, 197022 St. Petersburg, Russia;
- Faculty of Ecology, Russian State Hydrometeorological University, 192007 St. Petersburg, Russia;
| | - Tatyana N. Bagrova
- Faculty of Ecology, Russian State Hydrometeorological University, 192007 St. Petersburg, Russia;
| | - Oleg I. Yakhin
- Institute of Biochemistry and Genetics, The Ufa Federal Research Center of the Russian Academy of Sciences, 450054 Ufa, Russia;
| | - Alexander V. Rodionov
- Laboratory of Biosystematics and Cytology, Komarov Botanical Institute of the Russian Academy of Sciences, 197022 St. Petersburg, Russia; (P.M.Z.); (Y.V.M.); (A.V.R.)
| | - Maria F. Shishova
- Faculty of Biology, St. Petersburg State University, 199034 St. Petersburg, Russia;
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Song Y, Chen C, Wang Q, Feng J, Fu R, Zhang X, Cao L. Comparison of Different Cooling Schemes for AlGaN/GaN High-Electron Mobility Transistors. Micromachines (Basel) 2023; 15:33. [PMID: 38258152 DOI: 10.3390/mi15010033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/24/2024]
Abstract
Cooling is important for AlGaN/GaN high-electron mobility transistors (HEMTs) performance. In this paper, the advantages and disadvantages of the cooling performance of three cooling schemes: remote cooling (R-cool), near-chip cooling (NC-cool), and chip-embedded cooling (CE-cool) are compared. The influences of distinct geometric parameters and operating conditions on thermal resistance are investigated. The results show that the thermal resistances of NC-cool and CE-cool are almost the same as each other. Decreasing microchannel base thickness (hb) significantly increases the thermal resistance of CE-cool, and when its thickness is less than a critical value, NC-cool exhibits superior cooling performance than CE-cool. The critical thickness increases when decreasing the heat source pitch (Ph) and the convective heat transfer coefficient (hconv) or increasing the thermal conductivity of the substrate (λsub). Moreover, increasing Ph or λsub significantly improves the thermal resistance of three cooling schemes. Increasing hconv significantly decreases the thermal resistances of NC-cool and CE-cool while hardly affecting the thermal resistance of R-cool. The influence of the boundary thermal resistance (TBR) on the thermal resistance significantly increases at higher λsub and larger hconv.
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Affiliation(s)
- Yunqian Song
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- State Key Lab of Fabrication Technologies for Integrated Circuits, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China
- Leihua Electronic Technology Research Institute AVIC, Wuxi 214063, China
| | - Chuan Chen
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China
- State Key Lab of Fabrication Technologies for Integrated Circuits, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China
| | - Qidong Wang
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China
- State Key Lab of Fabrication Technologies for Integrated Circuits, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China
| | - Jianyu Feng
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- State Key Lab of Fabrication Technologies for Integrated Circuits, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China
| | - Rong Fu
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China
- State Key Lab of Fabrication Technologies for Integrated Circuits, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China
| | - Xiaobin Zhang
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China
| | - Liqiang Cao
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- State Key Lab of Fabrication Technologies for Integrated Circuits, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China
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Matilainen N, Kataja J, Laakso I. Predicting the hotspot location and motor threshold prior to transcranial magnetic stimulation using electric field modelling. Phys Med Biol 2023; 69:015012. [PMID: 37816371 DOI: 10.1088/1361-6560/ad0219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 10/10/2023] [Indexed: 10/12/2023]
Abstract
Objective.To investigate whether the motor threshold (MT) and the location of the motor hotspot in transcranial magnetic stimulation (TMS) can be predicted with computational models of the induced electric field.Approach.Individualized computational models were constructed from structural magnetic resonance images of ten healthy participants, and the induced electric fields were determined with the finite element method. The models were used to optimize the location and direction of the TMS coil on the scalp to produce the largest electric field at a predetermined cortical target location. The models were also used to predict how the MT changes as the magnetic coil is moved to various locations over the scalp. To validate the model predictions, the motor evoked potentials were measured from the first dorsal interosseous (FDI) muscle with TMS in the ten participants. Both computational and experimental methods were preregistered prior to the experiments.Main results.Computationally optimized hotspot locations were nearly as accurate as those obtained using manual hotspot search procedures. The mean Euclidean distance between the predicted and the measured hotspot locations was approximately 1.3 cm with a 0.8 cm bias towards the anterior direction. Exploratory analyses showed that the bias could be removed by changing the cortical target location that was used for the prediction. The results also indicated a statistically significant relationship (p< 0.001) between the calculated electric field and the MT measured at several locations on the scalp.Significance.The results show that the individual TMS hotspot can be located using computational analysis without stimulating the subject or patient even once. Adapting computational modelling would save time and effort in research and clinical use of TMS.
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Affiliation(s)
- Noora Matilainen
- Department of Electrical Engineering and Automation, Aalto University, Espoo, Finland
| | - Juhani Kataja
- Department of Electrical Engineering and Automation, Aalto University, Espoo, Finland
| | - Ilkka Laakso
- Department of Electrical Engineering and Automation, Aalto University, Espoo, Finland
- Aalto Neuroimaging, Aalto University, Espoo, Finland
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Zhang C, Chang F, Miao H, Fu Y, Tong X, Feng Y, Zheng W, Ma X. Construction and application of a multifunctional CHO cell platform utilizing Cre/ lox and Dre/ rox site-specific recombination systems. Front Bioeng Biotechnol 2023; 11:1320841. [PMID: 38173869 PMCID: PMC10761530 DOI: 10.3389/fbioe.2023.1320841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 12/04/2023] [Indexed: 01/05/2024] Open
Abstract
During the development of traditional Chinese hamster ovary (CHO) cell lines, target genes randomly integrate into the genome upon entering the nucleus, resulting in unpredictable productivity of cell clones. The characterization and screening of high-yielding cell lines is a time-consuming and expensive process. Site-specific integration is recognized as an effective approach for overcoming random integration and improving production stability. We have designed a multifunctional expression cassette, called CDbox, which can be manipulated by the site-specific recombination systems Cre/lox and Dre/rox. The CDbox expression cassette was inserted at the Hipp11(H11) locus hotspot in the CHO-K1 genome using CRISPR/Cas9 technology, and a compliant CHO-CDbox cell platform was screened and obtained. The CHO-CDbox cell platform was transformed into a pool of EGFP-expressing cells using Cre/lox recombinase-mediated cassette exchange (RMCE) in only 2 weeks, and this expression remained stable for at least 75 generations without the need for drug stress. Subsequently, we used the Dre/rox system to directly eliminate the EGFP gene. In addition, two practical applications of the CHO-CDbox cell platform were presented. The first was the quick construction of the Pembrolizumab antibody stable expression strain, while the second was a protocol for the integration of surface-displayed and secreted antibodies on CHO cells. The previous research on site-specific integration of CHO cells has always focused on the single functionality of insertion of target genes. This newly developed CHO cell platform is expected to offer expanded applicability for protein production and gene function studies.
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Affiliation(s)
- Chen Zhang
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai, China
| | - Feng Chang
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai, China
| | - Hui Miao
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai, China
| | - Yunhui Fu
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai, China
| | - Xikui Tong
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai, China
| | - Yu Feng
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Wenyun Zheng
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Xingyuan Ma
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai, China
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10
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Lim RM, Arme TM, Pedersen AB, Webster JP, Lamberton PHL. Defining schistosomiasis hotspots based on literature and shareholder interviews. Trends Parasitol 2023; 39:1032-1049. [PMID: 37806786 DOI: 10.1016/j.pt.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 10/10/2023]
Abstract
The World Health Organization (WHO) recently proposed a new operational definition which designates communities with ≥10% prevalence of Schistosoma spp. infection as a persistent hotspot, when, after at least two rounds of high-coverage annual preventive chemotherapy, there is a lack of appropriate reduction. However, inconsistencies and challenges from both biological and operational perspectives remain, making the prescriptive use of this definition difficult. Here, we present a comprehensive analysis of the use of the term 'hotspot' across schistosomiasis research over time, including both literature searches and opinions from a range of stakeholders, to assess the utility and generalisability of the new WHO definition of a persistent hotspot. Importantly, we propose an updated definition based on our analyses.
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Affiliation(s)
- Rivka M Lim
- Institute of Evolution and Ecology, School of Biological Sciences, Ashworth Laboratories, University of Edinburgh, Edinburgh, UK.
| | - Thomas M Arme
- School of Biodiversity, One Health and Veterinary Medicine, Wellcome Centre for Integrative Parasitology, University of Glasgow, Glasgow, UK
| | - Amy B Pedersen
- Institute of Evolution and Ecology, School of Biological Sciences, Ashworth Laboratories, University of Edinburgh, Edinburgh, UK
| | - Joanne P Webster
- Department of Pathobiology and Population Sciences, Royal Veterinary College, University of London, Hatfield, Herts, UK
| | - Poppy H L Lamberton
- School of Biodiversity, One Health and Veterinary Medicine, Wellcome Centre for Integrative Parasitology, University of Glasgow, Glasgow, UK
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11
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Baletaud F, Lecellier G, Gilbert A, Mathon L, Côme JM, Dejean T, Dumas M, Fiat S, Vigliola L. Comparing Seamounts and Coral Reefs with eDNA and BRUVS Reveals Oases and Refuges on Shallow Seamounts. Biology (Basel) 2023; 12:1446. [PMID: 37998045 PMCID: PMC10669620 DOI: 10.3390/biology12111446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/13/2023] [Accepted: 11/13/2023] [Indexed: 11/25/2023]
Abstract
Seamounts are the least known ocean biome. Considered biodiversity hotspots, biomass oases, and refuges for megafauna, large gaps exist in their real diversity relative to other ecosystems like coral reefs. Using environmental DNA metabarcoding (eDNA) and baited video (BRUVS), we compared fish assemblages across five environments of different depths: coral reefs (15 m), shallow seamounts (50 m), continental slopes (150 m), intermediate seamounts (250 m), and deep seamounts (500 m). We modeled assemblages using 12 environmental variables and found depth to be the main driver of fish diversity and biomass, although other variables like human accessibility were important. Boosted Regression Trees (BRT) revealed a strong negative effect of depth on species richness, segregating coral reefs from deep-sea environments. Surprisingly, BRT showed a hump-shaped effect of depth on fish biomass, with significantly lower biomass on coral reefs than in shallowest deep-sea environments. Biomass of large predators like sharks was three times higher on shallow seamounts (50 m) than on coral reefs. The five studied environments showed quite distinct assemblages. However, species shared between coral reefs and deeper-sea environments were dominated by highly mobile large predators. Our results suggest that seamounts are no diversity hotspots for fish. However, we show that shallower seamounts form biomass oases and refuges for threatened megafauna, suggesting that priority should be given to their protection.
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Affiliation(s)
- Florian Baletaud
- ENTROPIE, Institut de Recherche pour le Développement (IRD), UR, UNC, IFREMER, CNRS, Centre IRD de Nouméa, 98848 Noumea, New Caledonia, France; (F.B.); (G.L.); (L.M.); (M.D.); (S.F.)
- GINGER SOPRONER, 98000 Noumea, New Caledonia, France;
- GINGER BURGEAP, 69000 Lyon, France;
- MARBEC, University of Montpellier, CNRS, IFREMER, 34000 Montpellier, France
| | - Gaël Lecellier
- ENTROPIE, Institut de Recherche pour le Développement (IRD), UR, UNC, IFREMER, CNRS, Centre IRD de Nouméa, 98848 Noumea, New Caledonia, France; (F.B.); (G.L.); (L.M.); (M.D.); (S.F.)
- ISEA, University of New Caledonia, 98800 Noumea, New Caledonia, France
| | | | - Laëtitia Mathon
- ENTROPIE, Institut de Recherche pour le Développement (IRD), UR, UNC, IFREMER, CNRS, Centre IRD de Nouméa, 98848 Noumea, New Caledonia, France; (F.B.); (G.L.); (L.M.); (M.D.); (S.F.)
- CEFE, University of Montpellier, CNRS, EPHE-PSL, IRD, 34000 Montpellier, France
| | | | | | - Mahé Dumas
- ENTROPIE, Institut de Recherche pour le Développement (IRD), UR, UNC, IFREMER, CNRS, Centre IRD de Nouméa, 98848 Noumea, New Caledonia, France; (F.B.); (G.L.); (L.M.); (M.D.); (S.F.)
| | - Sylvie Fiat
- ENTROPIE, Institut de Recherche pour le Développement (IRD), UR, UNC, IFREMER, CNRS, Centre IRD de Nouméa, 98848 Noumea, New Caledonia, France; (F.B.); (G.L.); (L.M.); (M.D.); (S.F.)
| | - Laurent Vigliola
- ENTROPIE, Institut de Recherche pour le Développement (IRD), UR, UNC, IFREMER, CNRS, Centre IRD de Nouméa, 98848 Noumea, New Caledonia, France; (F.B.); (G.L.); (L.M.); (M.D.); (S.F.)
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12
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Barrera-Téllez FJ, Prieto-Martínez FD, Hernández-Campos A, Martínez-Mayorga K, Castillo-Bocanegra R. In Silico Exploration of the Trypanothione Reductase (TryR) of L. mexicana. Int J Mol Sci 2023; 24:16046. [PMID: 38003236 PMCID: PMC10671491 DOI: 10.3390/ijms242216046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/23/2023] [Accepted: 10/31/2023] [Indexed: 11/26/2023] Open
Abstract
Human leishmaniasis is a neglected tropical disease which affects nearly 1.5 million people every year, with Mexico being an important endemic region. One of the major defense mechanisms of these parasites is based in the polyamine metabolic pathway, as it provides the necessary compounds for its survival. Among the enzymes in this route, trypanothione reductase (TryR), an oxidoreductase enzyme, is crucial for the Leishmania genus' survival against oxidative stress. Thus, it poses as an attractive drug target, yet due to the size and features of its catalytic pocket, modeling techniques such as molecular docking focusing on that region is not convenient. Herein, we present a computational study using several structure-based approaches to assess the druggability of TryR from L. mexicana, the predominant Leishmania species in Mexico, beyond its catalytic site. Using this consensus methodology, three relevant pockets were found, of which the one we call σ-site promises to be the most favorable one. These findings may help the design of new drugs of trypanothione-related diseases.
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Affiliation(s)
- Francisco J. Barrera-Téllez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Fernando D. Prieto-Martínez
- Instituto de Química, Unidad Mérida, Universidad Nacional Autónoma de México, Carretera Mérida-Tetiz, Km. 4.5, Ucú 97357, Mexico
| | - Alicia Hernández-Campos
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Karina Martínez-Mayorga
- Instituto de Investigaciones en Matemáticas Aplicadas y en Sistemas, Unidad Mérida, Universidad Nacional Autónoma de México, Sierra Papacal, Mérida 97302, Mexico
| | - Rafael Castillo-Bocanegra
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
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13
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Tietje M, Antonelli A, Forest F, Govaerts R, Smith SA, Sun M, Baker WJ, Eiserhardt WL. Global hotspots of plant phylogenetic diversity. New Phytol 2023; 240:1636-1646. [PMID: 37496281 DOI: 10.1111/nph.19151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/24/2023] [Indexed: 07/28/2023]
Abstract
Regions harbouring high unique phylogenetic diversity (PD) are priority targets for conservation. Here, we analyse the global distribution of plant PD, which remains poorly understood despite plants being the foundation of most terrestrial habitats and key to human livelihoods. Capitalising on a recently completed, comprehensive global checklist of vascular plants, we identify hotspots of unique plant PD and test three hypotheses: (1) PD is more evenly distributed than species diversity; (2) areas of highest PD (often called 'hotspots') do not maximise cumulative PD; and (3) many biomes are needed to maximise cumulative PD. Our results support all three hypotheses: more than twice as many regions are required to cover 50% of global plant PD compared to 50% of species; regions that maximise cumulative PD substantially differ from the regions with outstanding individual PD; and while (sub-)tropical moist forest regions dominate across PD hotspots, other forest types and open biomes are also essential. Safeguarding PD in the Anthropocene (including the protection of some comparatively species-poor areas) is a global, increasingly recognised responsibility. Having highlighted countries with outstanding unique plant PD, further analyses are now required to fully understand the global distribution of plant PD and associated conservation imperatives across spatial scales.
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Affiliation(s)
- Melanie Tietje
- Department of Biology, Aarhus University, Aarhus, 8000, Denmark
| | - Alexandre Antonelli
- Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, UK
- Department of Biology, University of Oxford, Oxford, OX1 3SZ, UK
- Gothenburg Global Biodiversity Centre, University of Gothenburg, Göteborg, 413 19, Sweden
| | - Félix Forest
- Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, UK
| | | | - Stephen A Smith
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Miao Sun
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agriculture University, Wuhan, Hubei, 430070, China
| | | | - Wolf L Eiserhardt
- Department of Biology, Aarhus University, Aarhus, 8000, Denmark
- Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, UK
- Aarhus Institute of Advanced Studies, Aarhus University, Aaarhus, 8000, Denmark
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14
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Santos TG, Silva KS, Lima RM, Silva LC, Pereira M. State of the art in protein-protein interactions within the fungi kingdom. Future Microbiol 2023; 18:1119-1131. [PMID: 37540069 DOI: 10.2217/fmb-2022-0274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023] Open
Abstract
Proteins rarely exert their function by themselves. Protein-protein interactions (PPIs) regulate virtually every biological process that takes place in a cell. Such interactions are targets for new therapeutic agents against all sorts of diseases, through the screening and design of a variety of inhibitors. Here we discuss several aspects of PPIs that contribute to prediction of protein function and drug discovery. As the high-throughput techniques continue to release biological data, targets for fungal therapeutics that rely on PPIs are being proposed worldwide. Computational approaches have reduced the time taken to develop new therapeutic approaches. The near future brings the possibility of developing new PPI and interaction network inhibitors and a revolution in the way we treat fungal diseases.
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Affiliation(s)
- Thaynara G Santos
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, 74 000, Brazil
| | - Kleber Sf Silva
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, 74 000, Brazil
| | - Raisa M Lima
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, 74 000, Brazil
| | - Lívia C Silva
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, 74 000, Brazil
| | - Maristela Pereira
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, 74 000, Brazil
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15
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Tan Z, Lu S, Yang L, Xu Y, Qin S, Dai M, Li Z, Zhao Z. Research Trends and Hotspots of Medical Electrical Impedance Tomography Algorithms: A Bibliometric Analysis From 1987 to 2021. Cureus 2023; 15:e49700. [PMID: 38161896 PMCID: PMC10757460 DOI: 10.7759/cureus.49700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2023] [Indexed: 01/03/2024] Open
Abstract
Electrical impedance tomography (EIT) is a gradually maturing medical imaging technique that relies on computational algorithms for reconstructing and visualizing internal conductivity distributions within the human body. To provide a comprehensive and objective understanding of the current state and trends in the EIT algorithm research, we conducted bibliometric analysis on a 25-year EIT algorithm research dataset sourced from Web of Science Core Collections. We visualized publication characteristics, collaboration patterns, keywords, and co-cited references. The results indicate a steady increase in annual publications over recent decades. The United States, United Kingdom, China, and South Korea contributed 60% of the articles collaboratively. Keyword analysis unveiled three distinct stages in the evolution of EIT algorithm research: the establishment of fundamental algorithm frameworks, optimization for improved imaging performance, and the development of algorithms for clinical applications. Additionally, there has been a shift in research focus from traditional theories to the incorporation of new methods, such as artificial intelligence. Co-cited references suggest that integrating EIT with other established imaging techniques may emerge as a new trend in EIT algorithm research. In summary, EIT algorithms have been a consistent research focus, with current efforts centered on optimizing algorithms to enhance imaging performance. The emerging research trend involves utilizing more diverse and intersecting algorithms.
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Affiliation(s)
- Zhangjun Tan
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, CHN
| | - Shiyue Lu
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, CHN
| | - Lin Yang
- Department of Aerospace Medicine, Fourth Military Medical University, Xi'an, CHN
| | - Yuqing Xu
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, CHN
| | - Shaojie Qin
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, CHN
| | - Meng Dai
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, CHN
| | - Zhe Li
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, CHN
| | - Zhanqi Zhao
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, CHN
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Beijing, CHN
- Department of Technical Medicine, Furtwangen University, Villingen-Schwenningen, DEU
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16
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Baker Z, Przeworski M, Sella G. Down the Penrose stairs, or how selection for fewer recombination hotspots maintains their existence. eLife 2023; 12:e83769. [PMID: 37830496 DOI: 10.7554/elife.83769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 10/12/2023] [Indexed: 10/14/2023] Open
Abstract
In many species, meiotic recombination events tend to occur in narrow intervals of the genome, known as hotspots. In humans and mice, double strand break (DSB) hotspot locations are determined by the DNA-binding specificity of the zinc finger array of the PRDM9 protein, which is rapidly evolving at residues in contact with DNA. Previous models explained this rapid evolution in terms of the need to restore PRDM9 binding sites lost to gene conversion over time, under the assumption that more PRDM9 binding always leads to more DSBs. This assumption, however, does not align with current evidence. Recent experimental work indicates that PRDM9 binding on both homologs facilitates DSB repair, and that the absence of sufficient symmetric binding disrupts meiosis. We therefore consider an alternative hypothesis: that rapid PRDM9 evolution is driven by the need to restore symmetric binding because of its role in coupling DSB formation and efficient repair. To this end, we model the evolution of PRDM9 from first principles: from its binding dynamics to the population genetic processes that govern the evolution of the zinc finger array and its binding sites. We show that the loss of a small number of strong binding sites leads to the use of a greater number of weaker ones, resulting in a sharp reduction in symmetric binding and favoring new PRDM9 alleles that restore the use of a smaller set of strong binding sites. This decrease, in turn, drives rapid PRDM9 evolutionary turnover. Our results therefore suggest that the advantage of new PRDM9 alleles is in limiting the number of binding sites used effectively, rather than in increasing net PRDM9 binding. By extension, our model suggests that the evolutionary advantage of hotspots may have been to increase the efficiency of DSB repair and/or homolog pairing.
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Affiliation(s)
- Zachary Baker
- Department of Systems Biology, Columbia University, New York, United States
- Department of Biological Sciences, Columbia University, New York, United States
| | - Molly Przeworski
- Department of Systems Biology, Columbia University, New York, United States
- Department of Biological Sciences, Columbia University, New York, United States
- Program for Mathematical Genomics, Columbia University, New York, United States
| | - Guy Sella
- Department of Biological Sciences, Columbia University, New York, United States
- Program for Mathematical Genomics, Columbia University, New York, United States
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17
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Tumolo BB, Albertson LK, Daniels MD, Cross WF, Sklar LL. Facilitation strength across environmental and beneficiary trait gradients in stream communities. J Anim Ecol 2023; 92:2005-2015. [PMID: 37555442 DOI: 10.1111/1365-2656.13992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 07/23/2023] [Indexed: 08/10/2023]
Abstract
Ecosystem engineers modify habitats in ways that facilitate other community members by ameliorating harsh conditions. The strength of such facilitation is predicted to be influenced by both beneficiary traits and abiotic context. One key trait of animals that could control the strength of facilitation is beneficiary body size because it should determine how beneficiaries fit within and exploit stress ameliorating habitat modifications. However, few studies have measured how beneficiary body size relates to facilitation strength along environmental gradients. We examined how the strength of facilitation by net-spinning caddisflies on invertebrate communities in streams varied along an elevation gradient and based on traits of the invertebrate beneficiaries. We measured whether use of silk retreats as habitat concentrated invertebrate density and biomass compared to surrounding rock surface habitat and whether the use of retreat habitat varied across body sizes of community members along the gradient. We found that retreats substantially concentrated the densities of a diversity of taxa including eight different Orders, and this effect was greatest at high elevations. Caddisfly retreats also concentrated invertebrate biomass more as elevation increased. Body size of invertebrates inhabiting retreats was lower than that of surrounding rock habitats at low elevation sites, however, body size between retreats and rocks converged at higher elevation sites. Additionally, the body size of invertebrates found in retreats varied within and across taxa. Specifically, caddisfly retreats functioned as a potential nursery for taxa with large maximal body sizes. However, the patterns of this taxon-specific nursery effect were not influenced by elevation unlike the patterns observed based on community-level body size. Collectively, our results indicate that invertebrates use retreats in earlier life stages or when they are smaller in body size independent of life stage. Furthermore, our analysis suggests that facilitation strength intensifies as elevation increases within stream invertebrate communities. Further consideration of how trait variation and environmental gradients interact to determine the strength and direction of biotic interactions will be important as species ranges and environmental conditions continue to shift.
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Affiliation(s)
- Benjamin B Tumolo
- Department of Ecology, Montana State University, Bozeman, Montana, USA
- Rocky Mountain Biological Laboratory (RMBL), Crested Butte, Colorado, USA
| | - Lindsey K Albertson
- Department of Ecology, Montana State University, Bozeman, Montana, USA
- Rocky Mountain Biological Laboratory (RMBL), Crested Butte, Colorado, USA
| | | | - Wyatt F Cross
- Department of Ecology, Montana State University, Bozeman, Montana, USA
| | - Leonard L Sklar
- Department of Geography, Planning and Environment, Concordia University, Montreal, Quebec, Canada
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18
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Liang Y, Li H, Tian Y, Li Y, Wang W. SDR-Based 28 GHz mmWave Channel Modeling of Railway Marshaling Yard. Sensors (Basel) 2023; 23:8108. [PMID: 37836938 PMCID: PMC10575070 DOI: 10.3390/s23198108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/17/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023]
Abstract
Compared with railway communication service requirements on the mainline, requirements in hotspots such as stations and yards are more complicated in terms of service types as well as bandwidth, of which railway-dedicated mobile communication systems such as 5G-R facilitated with dedicated frequency support cannot meet the entire communication requirements. Therefore, other radio-communication technologies need to be adopted as a supplement, among which the mmWave communication system is a promising technology, especially for large bandwidth communication between train and trackside. However, there is a lack of evaluation of the 28 GHz mmWave channel characteristics for the railway marshaling yard scenario. In this paper, the railway marshaling yard mmWave propagation scenario is deeply analyzed and classified into three typical categories, based on which, a measurement campaign is conducted using an SDR channel sounding system equipped with a 28 GHz mmWave phased-array antenna. A self-developed software under the LabVIEW platform is used to derive the channel parameters. Conclusions on the relationship between the parameters of MPC numbers, time-spread, and received power and position, as well as the impact of typical obstructions such as the Catenary, adjacent locomotives, and buildings are drawn. The statistical results and conclusions of this paper are helpful for facilitating the design and performance evaluation of future mmWave communication systems for railway marshaling yards and can also be further extended and applied to the research of mmWave utilization in 6G and other future communication technologies for more scenarios.
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Affiliation(s)
- Yiqun Liang
- Postgraduate Department, China Academy of Railway Sciences, Beijing 100081, China;
- Signal and Communication Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing 100081, China; (Y.T.)
- National Research Center of Railway Intelligence Transportation System Engineering Technology, Beijing 100081, China
| | - Hui Li
- Signal and Communication Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing 100081, China; (Y.T.)
- National Research Center of Railway Intelligence Transportation System Engineering Technology, Beijing 100081, China
| | - Yuan Tian
- Signal and Communication Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing 100081, China; (Y.T.)
- National Research Center of Railway Intelligence Transportation System Engineering Technology, Beijing 100081, China
| | - Yi Li
- Signal and Communication Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing 100081, China; (Y.T.)
- National Research Center of Railway Intelligence Transportation System Engineering Technology, Beijing 100081, China
| | - Wenhua Wang
- National Railway Track Test Center, Beijing 100015, China;
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19
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Chen X, Shi X, Xiao H, Xiao D, Xu X. Research hotspot and trend of chronic wounds: A bibliometric analysis from 2013 to 2022. Wound Repair Regen 2023; 31:597-612. [PMID: 37552080 DOI: 10.1111/wrr.13117] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/29/2023] [Accepted: 07/31/2023] [Indexed: 08/09/2023]
Abstract
Chronic wounds have been confirmed as a vital health problem facing people in the global population aging process. While significant progress has been achieved in the study of chronic wounds, the treatment effect should be further improved. The number of publications regarding chronic wounds has been rising rapidly. In this study, bibliometric analysis was conducted to explore the hotspots and trends in the research on chronic wounds. All relevant studies on chronic wounds between 2013 and 2022 were collected from the PubMed database of the Web of Science (WOS) and the National Center for Biotechnology Information (NCBI). The data were processed and visualised using a series of software. On that basis, more insights can be gained into hotspots and trends of this research field. Wound Repair and Regeneration has the highest academic achievement in the field of chronic wound research. The United States has been confirmed as the most productive country, and the University of California System ranks high among other institutions. Augustin, M. is the author of the most published study, and Frykberg, RG et al. published the most cited study. Furthermore, the hotspots of wound research over the last decade were identified (e.g., bandages, infection and biofilms, pathophysiology and therapy). This study will help researchers gain insights into chronic wound research's hotspots and trends accurately and quickly. Moreover, the exploration of bacterial biofilm and the pathophysiological mechanism of the chronic wound will lay a solid foundation and clear direction for treating chronic wounds.
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Affiliation(s)
- Xinghan Chen
- Department of Burns and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xiujun Shi
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Haitao Xiao
- Department of Burns and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Dongqin Xiao
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xuewen Xu
- Department of Burns and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Wang J, Alshahir A, Abbas G, Kaaniche K, Albekairi M, Alshahr S, Aljarallah W, Sahbani A, Nowakowski G, Sieja M. A Deep Recurrent Learning-Based Region-Focused Feature Detection for Enhanced Target Detection in Multi-Object Media. Sensors (Basel) 2023; 23:7556. [PMID: 37688012 PMCID: PMC10490795 DOI: 10.3390/s23177556] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023]
Abstract
Target detection in high-contrast, multi-object images and movies is challenging. This difficulty results from different areas and objects/people having varying pixel distributions, contrast, and intensity properties. This work introduces a new region-focused feature detection (RFD) method to tackle this problem and improve target detection accuracy. The RFD method divides the input image into several smaller ones so that as much of the image as possible is processed. Each of these zones has its own contrast and intensity attributes computed. Deep recurrent learning is then used to iteratively extract these features using a similarity measure from training inputs corresponding to various regions. The target can be located by combining features from many locations that overlap. The recognized target is compared to the inputs used during training, with the help of contrast and intensity attributes, to increase accuracy. The feature distribution across regions is also used for repeated training of the learning paradigm. This method efficiently lowers false rates during region selection and pattern matching with numerous extraction instances. Therefore, the suggested method provides greater accuracy by singling out distinct regions and filtering out misleading rate-generating features. The accuracy, similarity index, false rate, extraction ratio, processing time, and others are used to assess the effectiveness of the proposed approach. The proposed RFD improves the similarity index by 10.69%, extraction ratio by 9.04%, and precision by 13.27%. The false rate and processing time are reduced by 7.78% and 9.19%, respectively.
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Affiliation(s)
- Jinming Wang
- College of Information Science & Technology, Zhejiang Shuren University, Hangzhou 310015, China
| | - Ahmed Alshahir
- Department of Electrical Engineering, College of Engineering, Jouf University, Sakakah 72388, Saudi Arabia
| | - Ghulam Abbas
- School of Electrical Engineering, Southeast University, Nanjing 210096, China
| | - Khaled Kaaniche
- Department of Electrical Engineering, College of Engineering, Jouf University, Sakakah 72388, Saudi Arabia
| | - Mohammed Albekairi
- Department of Electrical Engineering, College of Engineering, Jouf University, Sakakah 72388, Saudi Arabia
| | - Shahr Alshahr
- Department of Electrical Engineering, College of Engineering, Jouf University, Sakakah 72388, Saudi Arabia
| | - Waleed Aljarallah
- Department of Electrical Engineering, College of Engineering, Jouf University, Sakakah 72388, Saudi Arabia
| | - Anis Sahbani
- Institute for Intelligent Systems and Robotics (ISIR), CNRS, Sorbonne University, 75006 Paris, France
| | - Grzegorz Nowakowski
- Faculty of Electrical and Computer Engineering, Cracow University of Technology, Warszawska 24 Str., 31-155 Cracow, Poland
| | - Marek Sieja
- Faculty of Electrical and Computer Engineering, Cracow University of Technology, Warszawska 24 Str., 31-155 Cracow, Poland
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Li T, Song C, Liebeskind DS, Dmytriw AA, Xu R, Wang X, Wang J, Zhao H, Cao W, Gong H, Zhang C, Bai X, Jiao L. Clinical evidence in ischemic stroke: Where we have gone so far and hopes for the future. Eur J Neurol 2023. [PMID: 37650337 DOI: 10.1111/ene.16047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 08/13/2023] [Accepted: 08/14/2023] [Indexed: 09/01/2023]
Abstract
OBJECTIVE Ischemic stroke is a significant cause of disability and death worldwide. Randomized clinical trials (RCTs) are important in changing guidelines and treatment strategies. This study aimed to analyze the progress of RCTs in ischemic stroke and to guide future research directions. METHODS Ischemic stroke-related RCT articles were identified in six high-impact medical journals using the Web of Science Core Collection database. Google Scholar was used to check whether relevant articles were included in the guidelines. The characteristics of these articles were analyzed and future research hotspots were predicted. RESULTS 389 relevant articles were included in the analysis. The number of articles increased rapidly from 1972 to 2022, from 5 (1.3%; 1972-1982) to 208 (53.5%; 2013-2022) articles. 338 (86.9%) articles were included in relevant guidelines. According to corresponding author location, Europe was the source of the highest number of publications (183; 47.0%), followed by the Americas (152; 39.1%) and the Western Pacific (54; 13.9%). The number of publications steadily increased over time in the USA, England, Canada, Australia, Germany, and France, and surged in China and Spain, especially in the last 5 years. In recent years, endovascular therapy has accounted for the majority of ischemic stroke-related RCT articles. CONCLUSIONS Numerous RCTs related to ischemic stroke have been conducted in recent decades, and both the number of articles and their contribution to guideline updates are increasing. Also, a shift in research topics was observed. However, great regional imbalances in this research exist, calling for more research to be conducted in specific regions to promote the generalizability of trial conclusions.
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Affiliation(s)
- Tianhua Li
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Chengyu Song
- Department of Science and Technology, Medical Library, Peking University Huilongguan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - David S Liebeskind
- Department of Neurology and Comprehensive Stroke Center, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Adam A Dmytriw
- Neuroendovascular Program, Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ran Xu
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Xue Wang
- Medical Library, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jie Wang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Hengxiao Zhao
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Wenbo Cao
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Haozhi Gong
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Chao Zhang
- Escope Innovation Academy, Beijing, China
| | - Xuesong Bai
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Liqun Jiao
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
- Department of Interventional Neuroradiology, Xuanwu Hospital, Capital Medical University, Beijing, China
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Lacoeuilhe A, Percevault L, Ichter J, Gourdain P, Herard K, Michaud H, Poncet L, Ramage T, Roquinarc'h O, Withers P. All taxa biodiversity inventory of the Bois de Bouis estate (Var, France): a 10-year public-private partnership. Biodivers Data J 2023; 11:e103280. [PMID: 37600598 PMCID: PMC10436063 DOI: 10.3897/bdj.11.e103280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/15/2023] [Indexed: 08/22/2023] Open
Abstract
Background This data paper describes the results of a 10-year scientific investigation of a biodiversity-rich private golf estate in south-eastern France in partnership with PatriNat (Office français de la biodiversité/Centre national de la recherche scientifique/Muséum national d'Histoire naturelle, Institut de Recherche pour le Développement). In total, 3,160 species and subspecies, including 1,796 arthropods and 1,049 flora, were inventoried and 65 habitat types were surveyed and mapped. This project is the first All taxa biodiversity inventory (ATBI) in a private property in France with all information available in open data. New information The 20 datasets of fauna, flora, lichens and habitat types from the Bois de Bouis estate are now publicly available. Between 2012 and 2022, more than 22,000 occurrences were recorded, checked and published in the INPN information system. All this information is available in open access in the French portal OpenObs, operated by PatriNat and in the Global Biodiversity Information Facility (GBIF). This data paper provides an overview of the project, its main results and its contribution to the French National Inventory of Natural Heritage (INPN).This data paper presents a list eight species never previously recorded to France; three Hymenoptera: Charitopesleucobasis Townes, 1983 (Ichneumonidae), Dryinustussaci Olmi, 1989 (Dryinidae) and Sparasionmunitus Kozlov & Kononova, 1990 (Sparasionidae) and five Diptera: Clusiodesapicalis (Zetterstedt, 1848) (Clusiidae), Dicraeusvagans (Meigen, 1838) (Chloropidae), Stilponintermedius Raffone, 1994, Stilponsubnubilus Chvala, 1988 and Tachydromiaundulata (Strobl, 1906) (Hybotidae).It also includes a table comparing the project to 18 All-taxa biodiversity inventories in France and Belgium and published for the first time.
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Affiliation(s)
- Aurélie Lacoeuilhe
- PatriNat (OFB/MNHN/CNRS/IRD), Paris, FrancePatriNat (OFB/MNHN/CNRS/IRD)ParisFrance
| | - Louise Percevault
- PatriNat (OFB/MNHN/CNRS/IRD), Paris, FrancePatriNat (OFB/MNHN/CNRS/IRD)ParisFrance
| | - Jean Ichter
- Muséum national d'Histoire naturelle, Paris, FranceMuséum national d'Histoire naturelleParisFrance
| | - Philippe Gourdain
- PatriNat (OFB/MNHN/CNRS/IRD), Paris, FrancePatriNat (OFB/MNHN/CNRS/IRD)ParisFrance
| | - Katia Herard
- PatriNat (OFB/MNHN/CNRS/IRD), Paris, FrancePatriNat (OFB/MNHN/CNRS/IRD)ParisFrance
| | - Henri Michaud
- Conservatoire Botanique National Méditerranéen de Porquerolles, Hyères, FranceConservatoire Botanique National Méditerranéen de PorquerollesHyèresFrance
| | - Laurent Poncet
- PatriNat (OFB/MNHN/CNRS/IRD), Paris, FrancePatriNat (OFB/MNHN/CNRS/IRD)ParisFrance
| | - Thibault Ramage
- Unaffiliated, Concarneau, FranceUnaffiliatedConcarneauFrance
| | - Océane Roquinarc'h
- PatriNat (OFB/MNHN/CNRS/IRD), Paris, FrancePatriNat (OFB/MNHN/CNRS/IRD)ParisFrance
| | - Phil Withers
- Unaffiliated, Sainte Euphémie, FranceUnaffiliatedSainte EuphémieFrance
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23
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Kurth JK, Albrecht M, Glaser K, Karsten U, Vestergaard G, Armbruster M, Kublik S, Schmid CAO, Schloter M, Schulz S. Biological soil crusts on agricultural soils of mesic regions promote microbial cross-kingdom co-occurrences and nutrient retention. Front Microbiol 2023; 14:1169958. [PMID: 37520365 PMCID: PMC10382179 DOI: 10.3389/fmicb.2023.1169958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 06/21/2023] [Indexed: 08/01/2023] Open
Abstract
Introduction Biological soil crusts (biocrusts) are known as biological hotspots on undisturbed, nutrient-poor bare soil surfaces and until now, are mostly observed in (semi-) arid regions but are currently poorly understood in agricultural systems. This is a crucial knowledge gap because managed sites of mesic regions can quickly cover large areas. Thus, we addressed the questions (i) if biocrusts from agricultural sites of mesic regions also increase nutrients and microbial biomass as their (semi-) arid counterparts, and (ii) how microbial community assemblage in those biocrusts is influenced by disturbances like different fertilization and tillage regimes. Methods We compared phototrophic biomass, nutrient concentrations as well as the abundance, diversity and co-occurrence of Archaea, Bacteria, and Fungi in biocrusts and bare soils at a site with low agricultural soil quality. Results and Discussion Biocrusts built up significant quantities of phototrophic and microbial biomass and stored more nutrients compared to bare soils independent of the fertilizer applied and the tillage management. Surprisingly, particularly low abundant Actinobacteria were highly connected in the networks of biocrusts. In contrast, Cyanobacteria were rarely connected, which indicates reduced importance within the microbial community of the biocrusts. However, in bare soil networks, Cyanobacteria were the most connected bacterial group and, hence, might play a role in early biocrust formation due to their ability to, e.g., fix nitrogen and thus induce hotspot-like properties. The microbial community composition differed and network complexity was reduced by conventional tillage. Mineral and organic fertilizers led to networks that are more complex with a higher percentage of positive correlations favoring microbe-microbe interactions. Our study demonstrates that biocrusts represent a microbial hotspot on soil surfaces under agricultural use, which may have important implications for sustainable management of such soils in the future.
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Affiliation(s)
- Julia Katharina Kurth
- Chair for Environmental Microbiology, TUM School of Life Science, Technical University Munich, Freising, Germany
- Environmental Health Centre, Research Unit for Comparative Microbiome Analysis, Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt, Neuherberg, Germany
| | - Martin Albrecht
- Department of Applied Ecology and Phycology, Institute of Biological Sciences, University of Rostock, Rostock, Germany
| | - Karin Glaser
- Department of Applied Ecology and Phycology, Institute of Biological Sciences, University of Rostock, Rostock, Germany
| | - Ulf Karsten
- Department of Applied Ecology and Phycology, Institute of Biological Sciences, University of Rostock, Rostock, Germany
| | - Gisle Vestergaard
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Martin Armbruster
- Agricultural Analytical and Research Institute Speyer (LUFA Speyer), Speyer, Germany
| | - Susanne Kublik
- Environmental Health Centre, Research Unit for Comparative Microbiome Analysis, Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt, Neuherberg, Germany
| | - Christoph A. O. Schmid
- Environmental Health Centre, Research Unit for Comparative Microbiome Analysis, Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt, Neuherberg, Germany
| | - Michael Schloter
- Chair for Environmental Microbiology, TUM School of Life Science, Technical University Munich, Freising, Germany
- Environmental Health Centre, Research Unit for Comparative Microbiome Analysis, Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt, Neuherberg, Germany
| | - Stefanie Schulz
- Environmental Health Centre, Research Unit for Comparative Microbiome Analysis, Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt, Neuherberg, Germany
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24
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Nery EK, Caddah MK, Santos MF, Nogueira A. The evolution of ecological specialization underlies plant endemism in the Atlantic Forest. Ann Bot 2023; 131:921-940. [PMID: 36757803 PMCID: PMC10332402 DOI: 10.1093/aob/mcad029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND AND AIMS The evolution of ecological specialization is favoured under divergent selection imposed by increased environmental heterogeneity, although specialization can limit the geographical range of organisms, thus promoting endemism. The Atlantic Forest (AF) is an ancient montane domain with high plant endemism, containing different environments for plant specialization. Miconia is the most diverse genus of woody flowering plant within the AF domain, including AF-endemic and non-endemic lineages. We hypothesized that Miconia species have faced increased environmental heterogeneity and consequently have been selected towards increased specialization in the AF domain, and this increased specialization has greatly reduced species geographical ranges, ultimately promoting endemism. Hence, we made the following predictions: (1) AF-endemic species should face greater environmental heterogeneity than non-endemic species; (2) AF-endemic species should be more specialized than non-endemic species; (3) specialization should lead to smaller geographical ranges; (4) specialization and small geographical ranges among AF-endemic species should conform to a selection-driven evolutionary scenario rather than to a neutral evolutionary scenario; and (5) small geographical ranges among AF-endemic species should date back to the occupation of the AF domain rather than to more recent time periods. METHODS We used geographical, environmental and phylogenetic data on a major Miconia clade including AF-endemic and non-endemic species. We calculated Rao's Q to estimate the environmental heterogeneity faced by species. We used georeferenced occurrences to estimate the geographical ranges of species. We applied environmental niche modelling to infer species niche breadth. We inferred the most likely evolutionary scenario for species geographical range and niche breadth via a model-fitting approach. We used ancestral reconstructions to evaluate species geographical range throughout time. KEY RESULTS Atlantic Forest-endemic species faced 33-60 % more environmental heterogeneity, with the increase being associated with montane landscapes in the AF. The AF-endemic species were 60 % more specialized overall, specifically over highly variable environmental gradients in AF montane landscapes. Specialization strongly predicted small geographical ranges among AF-endemic species and was a major range-limiting factor among endemic lineages. The AF-endemic species have evolved towards specialization and small geographical ranges under a selection-driven regime, probably imposed by the great environmental heterogeneity in AF montane landscapes. The AF-endemic species underwent a major reduction of geographical range immediately after their evolution, indicating a long-standing effect of selective pressures in the AF domain. CONCLUSION Environmental heterogeneity imposes selective pressures favouring ecological specialization and small geographical ranges among plant lineages in the AF domain. This selection-driven process has probably promoted plant endemism in the AF domain throughout its history.
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Affiliation(s)
- Eduardo K Nery
- Programa de Pós-Graduação em Evolução e Diversidade, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, São Bernardo do Campo – SP, Brazil
| | - Mayara K Caddah
- Departamento de Botânica, Universidade Federal de Santa Catarina, Florianópolis – SC, Brazil
| | - Matheus F Santos
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, São Bernardo do Campo – SP, Brazil
| | - Anselmo Nogueira
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, São Bernardo do Campo – SP, Brazil
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Chen X, Xiao H, Shi X, Zhao Q, Xu X, Fan P, Xiao D. Bibliometric analysis and visualization of transdermal drug delivery research in the last decade: global research trends and hotspots. Front Pharmacol 2023; 14:1173251. [PMID: 37397493 PMCID: PMC10313210 DOI: 10.3389/fphar.2023.1173251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 06/08/2023] [Indexed: 07/04/2023] Open
Abstract
Background: Transdermal delivery has become a crucial field in pharmaceutical research. There has been a proliferation of innovative methods for transdermal drug delivery. In recent years, the number of publications regarding transdermal drug delivery has been rising rapidly. To investigate the current research trends and hotspots in transdermal drug delivery, a comprehensive bibliometric analysis was performed. Methods: An extensive literature review was conducted to gather information on transdermal drug delivery that had been published between 2003 and 2022. The articles were obtained from the Web of Science (WOS) and the National Center for Biotechnology Information (NCBI) databases. Subsequently, the collected data underwent analysis and visualization using a variety of software tools. This approach enables a deeper exploration of the hotspots and emerging trends within this particular research domain. Results: The results showed that the number of articles published on transdermal delivery has increased steadily over the years, with a total of 2,555 articles being analyzed. The most frequently cited articles were related to the optimization of drug delivery and the use of nanotechnology in transdermal drug delivery. The most active countries in the field of transdermal delivery research were the China, United States, and India. Furthermore, the hotspots over the past 2 decades were identified (e.g., drug therapy, drug delivery, and pharmaceutical preparations and drug design). The shift in research focus reflects an increasing emphasis on drug delivery and control release, rather than simply absorption and penetration, and suggests a growing interest in engineering approaches to transdermal drug delivery. Conclusion: This study provided a comprehensive overview of transdermal delivery research. The research indicated that transdermal delivery would be a rapidly evolving field with many opportunities for future research and development. Moreover, this bibliometric analysis will help researchers gain insights into transdermal drug delivery research's hotspots and trends accurately and quickly.
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Affiliation(s)
- Xinghan Chen
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
- Department of Burns and Plastic Surgery, West China Hospital Sichuan University, Chengdu, Sichuan, China
| | - Haitao Xiao
- Department of Burns and Plastic Surgery, West China Hospital Sichuan University, Chengdu, Sichuan, China
| | - Xiujun Shi
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Qiao Zhao
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xuewen Xu
- Department of Burns and Plastic Surgery, West China Hospital Sichuan University, Chengdu, Sichuan, China
| | - Ping Fan
- Department of Pharmacy, West China Hospital Sichuan University, Chengdu, Sichuan, China
| | - Dongqin Xiao
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
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Gelfusa M, Murari A, Ludovici GM, Franchi C, Gelfusa C, Malizia A, Gaudio P, Farinelli G, Panella G, Gargiulo C, Casinelli K. On the Potential of Relational Databases for the Detection of Clusters of Infection and Antibiotic Resistance Patterns. Antibiotics (Basel) 2023; 12:antibiotics12040784. [PMID: 37107146 PMCID: PMC10135313 DOI: 10.3390/antibiotics12040784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/05/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
In recent years, several bacterial strains have acquired significant antibiotic resistance and can, therefore, become difficult to contain. To counteract such trends, relational databases can be a powerful tool for supporting the decision-making process. The case of Klebsiella pneumoniae diffusion in a central region of Italy was analyzed as a case study. A specific relational database is shown to provide very detailed and timely information about the spatial-temporal diffusion of the contagion, together with a clear assessment of the multidrug resistance of the strains. The analysis is particularized for both internal and external patients. Tools such as the one proposed can, therefore, be considered important elements in the identification of infection hotspots, a key ingredient of any strategy to reduce the diffusion of an infectious disease at the community level and in hospitals. These types of tools are also very valuable in the decision-making process related to antibiotic prescription and to the management of stockpiles. The application of this processing technology to viral diseases such as COVID-19 is under investigation.
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Affiliation(s)
- Michela Gelfusa
- Department of Industrial Engineering, University of Rome "Tor Vergata", 00133 Rome, Italy
| | - Andrea Murari
- Consorzio RFX (CNR, ENEA, INFN), University of Padua, 35127 Padua, Italy
- Istituto per la Scienza e la Tecnologia dei Plasmi, CNR, 35100 Padua, Italy
| | - Gian Marco Ludovici
- Department of Industrial Engineering, University of Rome "Tor Vergata", 00133 Rome, Italy
| | - Cristiano Franchi
- Department of Industrial Engineering, University of Rome "Tor Vergata", 00133 Rome, Italy
| | - Claudio Gelfusa
- Department of Industrial Engineering, University of Rome "Tor Vergata", 00133 Rome, Italy
| | - Andrea Malizia
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", 00133 Rome, Italy
| | - Pasqualino Gaudio
- Department of Industrial Engineering, University of Rome "Tor Vergata", 00133 Rome, Italy
| | | | - Giacinto Panella
- ASL and Fabrizio Spaziani, Frosinone Hospital, 03100 Frosinone, Italy
| | - Carla Gargiulo
- ASL and Fabrizio Spaziani, Frosinone Hospital, 03100 Frosinone, Italy
| | - Katia Casinelli
- ASL and Fabrizio Spaziani, Frosinone Hospital, 03100 Frosinone, Italy
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27
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Nan L, Giráldez-Martínez J, Stefancu A, Zhu L, Liu M, Govorov AO, Besteiro LV, Cortés E. Investigating Plasmonic Catalysis Kinetics on Hot-Spot Engineered Nanoantennae. Nano Lett 2023; 23:2883-2889. [PMID: 37001024 DOI: 10.1021/acs.nanolett.3c00219] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Strong hot-spots can facilitate photocatalytic reactions potentially providing effective solar-to-chemical energy conversion pathways. Although it is well-known that the local electromagnetic field in plasmonic nanocavities increases as the cavity size reduces, the influence of hot-spots on photocatalytic reactions remains elusive. Herein, we explored hot-spot dependent catalytic behaviors on a highly controlled platform with varying interparticle distances. Plasmon-meditated dehalogenation of 4-iodothiophenol was employed to observe time-resolved catalytic behaviors via in situ surface-enhanced Raman spectroscopy on dimers with 5, 10, 20, and 30 nm interparticle distances. As a result, we show that by reducing the gap from 20 to 10 nm, the reaction rate can be sped up more than 2 times. Further reduction in the interparticle distance did not improve reaction rate significantly although the maximum local-field was ∼2.3-fold stronger. Our combined experimental and theoretical study provides valuable insights in designing novel plasmonic photocatalytic platforms.
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Affiliation(s)
- Lin Nan
- Chair in Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maxilimians-Universität München, 80539 München, Germany
| | - Jesús Giráldez-Martínez
- CINBIO, University of Vigo, Campus Universitario de Vigo, Lagoas Marcosende, 36310 Vigo, Spain
| | - Andrei Stefancu
- Chair in Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maxilimians-Universität München, 80539 München, Germany
| | - Li Zhu
- CINBIO, University of Vigo, Campus Universitario de Vigo, Lagoas Marcosende, 36310 Vigo, Spain
| | - Min Liu
- Hunan Joint International Research Center for Carbon Dioxide Resource Utilization, State Key Laboratory of Powder Metallurgy, School of Physics and Electronics, Central South University, 410083 Changsha, China
| | - Alexander O Govorov
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, United States
| | - Lucas V Besteiro
- CINBIO, University of Vigo, Campus Universitario de Vigo, Lagoas Marcosende, 36310 Vigo, Spain
| | - Emiliano Cortés
- Chair in Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maxilimians-Universität München, 80539 München, Germany
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Zhang H, Jia L, Guo R, Xiong J, Jiang H. A bibliometric and visualized study on global trends of breast augmentation complications, 2011-2021. Gland Surg 2023; 12:354-365. [PMID: 37057044 PMCID: PMC10086776 DOI: 10.21037/gs-22-499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 01/26/2023] [Indexed: 03/13/2023]
Abstract
Background Women undergo breast augmentation surgery for a variety of reasons, but surgical complications can seriously affect patient outcomes and quality of life, making it a hot research topic. Although a large body of literature exists in this field, a lack of systemic generalization hinders the ability to guide clinical practice. We aimed to identify the current research hotspots and common surgical approaches of breast augmentation and to predict future research hotspots by analyzing the literature of the past 10 years. Methods All relevant literature on breast augmentation complications were screened in the Web of Science (WoS) platform from 2011 to 2021. We analyzed the research within this field using the software programs VOSviewer and CiteSpace. Results In total, 2,798 publications were selected. The United States ranked first in the world (1,173 articles), followed by Italy (243 articles), and the United Kingdom (208 articles). Memorial Sloan Kettering Cancer Center was the institution with the most publications, but the academic achievements of Harvard were the most recognized. Plastic and Reconstructive Surgery was the most prominent of all journals in terms of both the number and quality of the articles published. Albornoz was the hub author in the co-citation network. Keyword cluster analysis showed that capsular contracture, breast cancer, and postoperative nausea, among others, were the hotspots and trends of research in recent years. Conclusions This study comprehensively summarized and analyzed the research trends of breast augmentation complications worldwide. Capsular contracture and postoperative nausea are current research hotspots. Periareolar incision and the breast crease incision are the most common incision approaches. Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is a future research hotspot.
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Affiliation(s)
| | | | - Rong Guo
- Department of Plastic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | | | - Hua Jiang
- Department of Plastic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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Zhu G, Giam X, Armsworth PR, Cho SH, Papeş M. Biodiversity conservation adaptation to climate change: Protecting the actors or the stage. Ecol Appl 2023; 33:e2765. [PMID: 36259369 DOI: 10.1002/eap.2765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 08/05/2022] [Accepted: 08/23/2022] [Indexed: 06/16/2023]
Abstract
To be able to protect biodiversity in coming decades, conservation strategies need to consider what sites will be important for species not just today but also in the future. Different methods have been proposed to identify places that will be important for species in the future. Two of the most frequently used methods, ecological niche modeling and climate resilience, have distinct aims. The former focuses on identifying the suitable environmental conditions for species, thus protecting the "actor," namely, the species, whereas the latter seeks to safeguard the "stage," or the landscape in which species occur. We used the two methods to identify climate refugia for 258 forest vertebrates under short- and long-term climatic changes in a biodiversity hotspot, the Appalachian ecoregion of the United States. We also evaluated the spatial congruence of the two approaches for a possible conservation application, that of protecting 30% of the Appalachian region, in line with recent national and international policy recommendations. We detected weak positive correlations between resilience scores and baseline vertebrate richness, estimated with ecological niche models for historical (baseline) climatic conditions. The correlations were stronger for amphibians and mammals than for birds and reptiles. Under climate change scenarios, the correlations between estimated vertebrate richness and resilience were also weakly positive; a positive correlation was detected only for amphibians. Locations with estimated future gain of suitable climatic conditions for vertebrates showed low correlation with resilience. Overall, our results indicate that climate resilience and ecological niche modeling approaches capture different characteristics of projected distributional changes of Appalachian vertebrates. A climate resilience (the stage) approach could be more effective in safeguarding species with low dispersal abilities, whereas an ecological niche modeling (the actor) approach could be more suitable for species with long-distance dispersal capacity because they may be more broadly impacted by climate and less sensitive to geophysical features captured by a climate resilience approach.
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Affiliation(s)
- Gengping Zhu
- National Institute for Mathematical and Biological Synthesis, University of Tennessee, Knoxville, Tennessee, USA
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, USA
| | - Xingli Giam
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, USA
| | - Paul R Armsworth
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, USA
| | - Seong-Hoon Cho
- Department of Agricultural and Resource Economics, University of Tennessee, Knoxville, Tennessee, USA
| | - Monica Papeş
- National Institute for Mathematical and Biological Synthesis, University of Tennessee, Knoxville, Tennessee, USA
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, USA
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Wang P, Wu P, Wang J, Zeng Y, Jiang Y, Wang Y, Li S, Xiao X, Zhang Q. Missense Mutations in MAB21L1: Causation of Novel Autosomal Dominant Ocular BAMD Syndrome. Invest Ophthalmol Vis Sci 2023; 64:19. [PMID: 36892533 PMCID: PMC10010443 DOI: 10.1167/iovs.64.3.19] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023] Open
Abstract
Purpose Biallelic MAB21L1 variants have been reported to cause autosomal recessive cerebellar, ocular, craniofacial, and genital syndrome (COFG), whereas only five heterozygous pathogenic variants have been suspected to cause autosomal dominant (AD) microphthalmia and aniridia in eight families. This study aimed to report an AD ocular syndrome (blepharophimosis plus anterior segment and macular dysgenesis [BAMD]) syndrome based on clinical and genetic findings from patients with monoallelic MAB21L1 pathogenic variants in our cohort and reported cases. Methods Potential pathogenic variants in MAB21L1 were detected from a large in-house exome sequencing dataset. Ocular phenotypes of the patients with potential pathogenic variants in MAB21L1 were summarized, and the genotype-phenotype correlation was analyzed through a comprehensive literature review. Results Three heterozygous missense variants in MAB21L1, predicted to be damaging, were detected in 5 unrelated families, including c.152G>T in 2, c.152G>A in 2, and c.155T>G in one. All were absent from gnomAD. The variants were de novo in two families, transmitted from affected parents to offspring in two families, and with an unknown origin in the other family, demonstrating strong evidence of AD inheritance. All patients revealed similar BAMD phenotypes, including blepharophimosis, anterior segment dysgenesis, and macular dysgenesis. Genotype-phenotype analysis suggested that patients with monoallelic MAB21L1 missense variants had only ocular anomalies (BAMD), whereas patients with biallelic variants presented both ocular and extraocular symptoms. Conclusions Heterozygous pathogenic variants in MAB21L1 account for a new AD BAMD syndrome, which is completely different from COFG caused by homozygous variants in MAB21L1. Nucleotide c.152 is likely a mutation hot spot, and the encoded residue of p.Arg51 might be critical for MAB21L1.
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Affiliation(s)
- Panfeng Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Pengsen Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Junwen Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Yiyan Zeng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Yi Jiang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Yingwei Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Shiqiang Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Xueshan Xiao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Qingjiong Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
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Sartori L, Caliri SL, Baro V, Colasanti R, Furlanis GM, D'Amico A, De Nardi G, Ferreri F, Corbetta M, d'Avella D, Denaro L, Landi A. Selective Stimulus Intensity during Hotspot Search Ensures Faster and More Accurate Preoperative Motor Mapping with nTMS. Brain Sci 2023; 13. [PMID: 36831828 DOI: 10.3390/brainsci13020285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/02/2023] [Accepted: 02/06/2023] [Indexed: 02/10/2023] Open
Abstract
INTRODUCTION Navigated transcranial magnetic stimulation (nTMS) has emerged as one of the most innovative techniques in neurosurgical practice. However, nTMS motor mapping involves rigorous steps, and the importance of an accurate execution method has not been emphasized enough. In particular, despite strict adherence to procedural protocols, we have observed high variability in map activation according to the choice of stimulation intensity (SI) right from the early stage of hotspot localization. We present a retrospective analysis of motor mappings performed between March 2020 and July 2022, where the SI was only chosen with rigorous care in the most recent ones, under the guide of an expert neurophysiologist. MATERIALS AND METHODS In order to test the ability to reduce inaccurate responses and time expenditure using selective SI, data were collected from 16 patients who underwent mapping with the random method (group A) and 15 patients who underwent mapping with the proposed method (group B). The parameters considered were resting motor threshold (%), number of stimuli, number of valid motor evoked potentials (MEPs), number of valid MEPs considered true positives (TPs), number of valid MEPs considered false positives (FPs), ratio of true-positive MEPs to total stimuli, ratio of true-positive MEPs to valid MEPs, minimum amplitude, maximum amplitude and mapping time for each patient. RESULTS The analysis showed statistically significant reductions in total stimulus demand, procedural time and number of false-positive MEPs. Significant increases were observed in the number of true-positive MEPs, the ratio of true-positive MEPs to total stimuli and the ratio of true-positive MEPs to valid MEPs. In the subgroups analyzed, there were similar trends, in particular, an increase in true positives and a decrease in false-positive responses. CONCLUSIONS The precise selection of SI during hotspot search in nTMS motor mapping could provide reliable cortical maps in short time and with low employment of resources. This method seems to ensure that a MEP really represents a functionally eloquent cortical point, making mapping more intuitive even in less experienced centers.
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Gong T, Wang X, Li S, Zhong L, Zhu L, Luo T, Tian D. Global research status and trends of bronchiectasis in children from 2003 to 2022: A 20-year bibliometric analysis. Front Pediatr 2023; 11:1095452. [PMID: 36816374 PMCID: PMC9936077 DOI: 10.3389/fped.2023.1095452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/09/2023] [Indexed: 02/05/2023] Open
Abstract
Background This study aims to analyze the research hotspots, evolution, and developing trends in pediatric bronchiectasis over the past 20 years using bibliometric analysis and visualization tools to identify potential new research directions. Methods Publications related to bronchiectasis in children were retrieved from the Web of Science Core Collection (WoSCC) database from 2003 to 2022. Knowledge maps were performed through VOSviewer1.6.18 and CiteSpace6.1 R2. Results A total of 2,133 publications were searched, while only 1,351 original articles written in English between 2003 and 2022 were incorporated. After removing duplicates, we finally included 1,350 articles published by 6,593 authors from 1,865 institutions in 80 countries/regions in 384 different academic journals with an average citation frequency of 24.91 times. The number of publications shows an extremely obvious binomial growth trend. The majority of publications originated from the United States, Australia, and England. The institutes in Australia, especially Charles Darwin University, published the most articles associated with pediatric bronchiectasis. In addition, Pediatric Pulmonology was the most published journal. In terms of authors, Chang AB was the most productive author, while Gangell CL had the highest average citation frequency. The five keywords that have appeared most frequently during the last two decades were "children," "cystic fibrosis," "bronchiectasis," "ct," and "pulmonary-function." According to keyword analysis, early diagnosis and intervention and optimal long-term pediatric-specific management were the most concerned topics for researchers. Conclusion This bibliometric analysis indicates that bronchiectasis in children has drawn increasing attention in the last two decades as its recognition continues to rise, providing scholars in the field with significant information on current topical issues and research frontiers.
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Affiliation(s)
| | | | | | | | | | | | - Daiyin Tian
- Department of Respiratory Disease, Children’s Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, China
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Bohm KA, Wyrick JJ. Damage mapping techniques and the light they have shed on canonical and atypical UV photoproducts. Front Genet 2023; 13:1102593. [PMID: 36704334 PMCID: PMC9871259 DOI: 10.3389/fgene.2022.1102593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 12/20/2022] [Indexed: 01/11/2023] Open
Abstract
Ultraviolet (UV) light is a pervasive threat to the DNA of terrestrial organisms. UV light induces helix-distorting DNA lesions, primarily cyclobutane pyrimidine dimers (CPDs) that form between neighboring pyrimidine bases. Unrepaired CPD lesions cause cytosine-to-thymine (C>T) substitutions in dipyrimidine sequences, which is the predominant mutation class in skin cancer genomes. However, many driver mutations in melanoma (e.g., in the BRAF and NRAS oncogenes) do not fit this UV mutation signature. Recent studies have brought to light the intriguing hypothesis that these driver mutations may be induced by infrequent or atypical UV photoproducts, including pyrimidine 6-4 pyrimidone photoproducts (6-4PP) and thymine-adenine (TA) photoproducts. Here, we review innovative methods for mapping both canonical and atypical UV-induced photoproducts across the genome.
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Affiliation(s)
- Kaitlynne A. Bohm
- School of Molecular Biosciences, Washington State University, Pullman, WA, United States
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Maimaiti Z, Li Z, Xu C, Chen J, Chai W. Global trends and hotspots of phage therapy for bacterial infection: A bibliometric visualized analysis from 2001 to 2021. Front Microbiol 2023; 13:1067803. [PMID: 36699585 PMCID: PMC9868171 DOI: 10.3389/fmicb.2022.1067803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 12/20/2022] [Indexed: 01/11/2023] Open
Abstract
Background Antibiotic resistance is one of the main global threats to human health, and just the development of new antimicrobial medications is not enough to solve the crisis. Phage therapy (PT), a safe and effective treatment method, has reignited the interest of researchers due to its efficacy in the clinical treatment of drug-resistant bacterial infections. There is, however, no bibliometric analysis of the overall trends on this topic. Therefore, this study aims to provide an overview of the current state of development and research in this area. Methods We extracted all relevant publications from the Web of Science Core Collection (WoSCC) database between 2001 and 2021. We performed bibliometric analysis and visualization using CiteSpace, VOS viewer, and R software. Annual trends of publications, countries/regions distributions, institutions, funding agencies, co-cited journals, author contributions, core journals, references, and keywords were analyzed. Results A total of 6,538 papers were enrolled in this study, including 5,364 articles and 1,174 reviews. Publications have increased drastically from 61 in 2001 to 937 in 2021, with 3,659 articles published in the last 5 years. North America, Western Europe, and East Asia were significant contributor regions. The United States, China, and the United Kingdom were the most productive countries. The Polish Academy of Sciences was the most contributive institution. Frontiers in Microbiology and Applied and Environmental Microbiology were the most productive and co-cited journals. A. Gorski and R. Lavigne published most articles in this field, while V. A. Fischetti was the author with the most cited. Regarding keywords, research focuses include phage biology, phage against clinically important pathogens, phage lysis proteins, phage therapy, biofilm-related research, and recent clinical applications. Conclusion Phage therapy is a potential strategy for combating antibiotic resistance, and it will provide us with an alternative therapeutic option for bacterial infection. According to global trends, the scientific output of PT in bacterial infections is increasing, with developed countries such as the United States leading the way in this area. Although the safety and efficacy of PT have been proven, more clinical trials on the phages against infectious diseases caused by various pathogens are still needed.
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Affiliation(s)
- Zulipikaer Maimaiti
- Department of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China,Department of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Zhuo Li
- Department of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China,School of Medicine, Nankai University, Tianjin, China
| | - Chi Xu
- Department of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China,Department of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Jiying Chen
- Department of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China,Department of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China,*Correspondence: Jiying Chen, ; Wei Chai,
| | - Wei Chai
- Department of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China,Department of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China,*Correspondence: Jiying Chen, ; Wei Chai,
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Qalb A, Arshad HSH, Nawaz MS, Hafeez A. Risk reduction via spatial and temporal visualization of road accidents: a way forward for emergency response optimization in developing countries. Int J Inj Contr Saf Promot 2023; 30:310-320. [PMID: 36597796 DOI: 10.1080/17457300.2022.2164312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
To achieve an effective emergency response and road safety, this study aims to assist a semi-automated dynamic system to analyze and predict the spatial distribution and temporal pattern of road crashes. Kasur, an intermediate city of Pakistan, was selected and data including location, time and reasons of accidents for five years (2014-2018) was utilized. Radar charts, Getis-Ord Gi* statistic, Moran's I spatial auto-correlation, and time series indices were engaged to present temporal, spatial and spatial-temporal variation of accidents, using python-based tools and jupyter notebook. A dynamic user interface was created using Github and Tableau to visualize a real-time zoom-able spatiotemporal variation of accidents. The results explain that out of 12 months, October faces the peak while April sees the least of road accidents. 7am is the peak hour for accidents and the weekends record a significantly higher number of road accidents as compared to weekdays. The city core witnesses the major hotspot areas with huge cluster of accidents. The findings contribute towards a well-informed decision support system, the knowledge of spatial analytics and its application in road safety science, and the preparedness of the rescue agencies for rapid response to reduce the impacts of road accidents.
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Affiliation(s)
- Aqsa Qalb
- Department of City and Regional Planning, University of Management and Technology, Lahore, Pakistan
| | - Hafiz Syed Hamid Arshad
- Department of City and Regional Planning, University of Management and Technology, Lahore, Pakistan
| | - Muhammad Shafaat Nawaz
- Department of City and Regional Planning, University of Management and Technology, Lahore, Pakistan
| | - Asra Hafeez
- Department of City and Regional Planning, University of Management and Technology, Lahore, Pakistan
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Pomara C, Zappalà SA, Salerno M, Sessa F, Esposito M, Cocimano G, Ippolito S, Miani A, Missoni E, Piscitelli P. Migrants' human rights and health protection during the COVID-19 pandemic in the Mediterranean Sea: what we have learnt from direct inspections in two Italian hotspots. Front Public Health 2023; 11:1129267. [PMID: 37151579 PMCID: PMC10160674 DOI: 10.3389/fpubh.2023.1129267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 04/04/2023] [Indexed: 05/09/2023] Open
Abstract
This study aims to assess the situation of Italian hotspots for migrant reception during the COVID-19 pandemic, and specifically analyzing the situation of two hotspots located in the Sicily Region (Pozzallo harbor and Lampedusa Island), to identify critical issues. At the same time, we hypothesize solutions to guarantee the respect of human rights and suggest an operational protocol to be applied in similar situations, considering that the migration phenomenon is increasing and involving new geographical areas. Based on data obtained through the site inspections, the facilities of Pozzallo and Lampedusa exceeded their capacity to adequately contain the spread of the SARS-CoV-2 infection. Considering these findings, we suggest a practical workflow summarizing the main actions that should be applied to contain COVID-19, or other infectious disease, spreading in hotspots for migrants. The impact of the COVID-19 pandemic on migrants has received limited attention, although the migration phenomenon did not slow down during the pandemic period. Regarding the risk of spreading infectious diseases such as COVID-19, it is necessary that those countries who are most exposed to migration flows, such as Italy, plan dedicated strategies to minimize the possibility of transmission of SARS-CoV-2, using adequate protocols to monitor the possible insurgence of variants of interest (VOIs) or variants of concern (VOCs). Finally, it is important to state that these suggestions could be applied in any future pandemics.
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Affiliation(s)
- Cristoforo Pomara
- Legal Medicine, Department of Medical, Surgical and Advanced Technologies, “G.F. Ingrassia”, University of Catania, Catania, Italy
- Member of the Task Force of the Sicily Region for Immigration, Catania, Italy
- *Correspondence: Cristoforo Pomara,
| | | | - Monica Salerno
- Legal Medicine, Department of Medical, Surgical and Advanced Technologies, “G.F. Ingrassia”, University of Catania, Catania, Italy
| | - Francesco Sessa
- Legal Medicine, Department of Medical, Surgical and Advanced Technologies, “G.F. Ingrassia”, University of Catania, Catania, Italy
| | - Massimiliano Esposito
- Legal Medicine, Department of Medical, Surgical and Advanced Technologies, “G.F. Ingrassia”, University of Catania, Catania, Italy
| | - Giuseppe Cocimano
- Legal Medicine, Department of Medical, Surgical and Advanced Technologies, “G.F. Ingrassia”, University of Catania, Catania, Italy
| | - Salvatore Ippolito
- Former Officer at the United Nations High Commissioner for Refugees, Geneve, Switzerland
| | - Alessandro Miani
- Italian Society of Environmental Medicine, Milan, Italy
- Department of Health Science and Policy, University of Milan, Milan, Italy
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Han H, Wang Z, Zhao X, Li G, Fu Y, Wang Z, Wang H. Global scientific trends in laparoscopy and gastric cancer in the 21st century: A bibliometric and visual mapping analysis. Front Oncol 2023; 13:1136834. [PMID: 36910670 PMCID: PMC9995981 DOI: 10.3389/fonc.2023.1136834] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 02/09/2023] [Indexed: 02/25/2023] Open
Abstract
Aims To use visual mapping and bibliometrics to analyze and summarize the valuable information on laparoscopic surgery for gastric cancer (GC) obtained in the last 20 years, so as to determine the research hotspots and trends in this field. Methods We screened all literature on laparoscopic surgery for GC in the Web of Science published from 2000 to 2022 and analyzed the research hotspots and trends in this field using VOSviewer. Results A total of 2796 reports from 61 countries and regions were selected. Japanese researchers published the most papers (n=946), followed by those from China (n=747) and South Korea (n=557). Papers from Japan also had the most citations (n=21,836). Surgical Endoscopy and Other Interventional Techniques published the most reports on laparoscopic surgery for GC (n=386) and also had the highest total number of citations (n=11,076), making this journal the most authoritative in this field. Among the institutions, researchers from Seoul National University in South Korea had the highest numbers of published papers and citations. The keywords of the articles could be divided into five categories: surgical methods for GC, short-term and long-term efficacy of laparoscopic surgery, guiding role of laparoscopy in the treatment of advanced GC, diagnosis and treatment of early gastric cancer (EGC), and lymph node dissection. Keywords such as "laparoscopic proximal gastrectomy", "surgical outcomes", and "esophagogastric junction" have emerged recently, and relevant studies on laparoscopic surgery for adenocarcinoma of esophagogastric junction(AEG)have gradually become a hot topic and trend. Conclusion This study adopted bibliometric analysis to identify the current research hotspots and research trends in the field of laparoscopic surgery for GC. Five main research hotspots of laparoscopic surgery for GC were also identified. Laparoscopic surgery for AEG may become an important research focus in the future.
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Affiliation(s)
- Hongmin Han
- Department of General Surgery, The People's Hospital of China Medical University, Shenyang, China.,Department of General Surgery, Shenzhen Hyzen Hospital, Shenzhen, China
| | - Zhanwei Wang
- Department of General Surgery, The People's Hospital of China Medical University, Shenyang, China
| | - Xiaodan Zhao
- Department of General Surgery, The People's Hospital of China Medical University, Shenyang, China
| | - Guosheng Li
- Department of General Surgery, The People's Hospital of China Medical University, Shenyang, China
| | - Yuan Fu
- Department of General Surgery, The People's Hospital of China Medical University, Shenyang, China
| | - Zhongqing Wang
- Department of Information Center, The First Hospital of China Medical University, Shenyang, China
| | - Hongyan Wang
- Department of General Surgery, The People's Hospital of China Medical University, Shenyang, China
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Crespo-Piazuelo D, Acloque H, González-Rodríguez O, Mongellaz M, Mercat MJ, Bink MCAM, Huisman AE, Ramayo-Caldas Y, Sánchez JP, Ballester M. Identification of transcriptional regulatory variants in pig duodenum, liver, and muscle tissues. Gigascience 2022; 12:giad042. [PMID: 37354463 PMCID: PMC10290502 DOI: 10.1093/gigascience/giad042] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 04/13/2023] [Accepted: 05/25/2023] [Indexed: 06/26/2023] Open
Abstract
BACKGROUND In humans and livestock species, genome-wide association studies (GWAS) have been applied to study the association between variants distributed across the genome and a phenotype of interest. To discover genetic polymorphisms affecting the duodenum, liver, and muscle transcriptomes of 300 pigs from 3 different breeds (Duroc, Landrace, and Large White), we performed expression GWAS between 25,315,878 polymorphisms and the expression of 13,891 genes in duodenum, 12,748 genes in liver, and 11,617 genes in muscle. RESULTS More than 9.68 × 1011 association tests were performed, yielding 14,096,080 significantly associated variants, which were grouped in 26,414 expression quantitative trait locus (eQTL) regions. Over 56% of the variants were within 1 Mb of their associated gene. In addition to the 100-kb region upstream of the transcription start site, we identified the importance of the 100-kb region downstream of the 3'UTR for gene regulation, as most of the cis-regulatory variants were located within these 2 regions. We also observed 39,874 hotspot regulatory polymorphisms associated with the expression of 10 or more genes that could modify the protein structure or the expression of a regulator gene. In addition, 2 motifs (5'-GATCCNGYGTTGCYG-3' and a poly(A) sequence) were enriched across the 3 tissues within the neighboring sequences of the most significant single-nucleotide polymorphisms in each cis-eQTL region. CONCLUSIONS The 14 million significant associations obtained in this study are publicly available and have enabled the identification of expression-associated cis-, trans-, and hotspot regulatory variants within and across tissues, thus shedding light on the molecular mechanisms of regulatory variations that shape end-trait phenotypes.
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Affiliation(s)
- Daniel Crespo-Piazuelo
- Animal Breeding and Genetics Program, IRTA, Torre Marimon, Caldes de Montbui (08140), Spain
| | - Hervé Acloque
- GABI, Université Paris-Saclay, INRAE, AgroParisTech, Jouy-en-Josas (78350), France
| | | | - Mayrone Mongellaz
- GABI, Université Paris-Saclay, INRAE, AgroParisTech, Jouy-en-Josas (78350), France
| | | | - Marco C A M Bink
- Hendrix Genetics Research Technology & Services B.V., Boxmeer (5830 AC), The Netherlands
| | | | - Yuliaxis Ramayo-Caldas
- Animal Breeding and Genetics Program, IRTA, Torre Marimon, Caldes de Montbui (08140), Spain
| | - Juan Pablo Sánchez
- Animal Breeding and Genetics Program, IRTA, Torre Marimon, Caldes de Montbui (08140), Spain
| | - Maria Ballester
- Animal Breeding and Genetics Program, IRTA, Torre Marimon, Caldes de Montbui (08140), Spain
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Allard B, Dissaux B, Bourhis D, Dissaux G, Schick U, Salaün PY, Abgral R, Querellou S. Hotspot on 18F-FET PET/CT to Predict Aggressive Tumor Areas for Radiotherapy Dose Escalation Guiding in High-Grade Glioma. Cancers (Basel) 2022; 15:cancers15010098. [PMID: 36612093 PMCID: PMC9817533 DOI: 10.3390/cancers15010098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
The standard therapy strategy for high-grade glioma (HGG) is based on the maximal surgery followed by radio-chemotherapy (RT-CT) with insufficient control of the disease. Recurrences are mainly localized in the radiation field, suggesting an interest in radiotherapy dose escalation to better control the disease locally. We aimed to identify a similarity between the areas of high uptake on O-(2-[18F]-fluoroethyl)-L-tyrosine (FET) positron emission tomography/computed tomography (PET) before RT-CT, the residual tumor on post-therapy NADIR magnetic resonance imaging (MRI) and the area of recurrence on MRI. This is an ancillary study from the IMAGG prospective trial assessing the interest of FET PET imaging in RT target volume definition of HGG. We included patients with diagnoses of HGG obtained by biopsy or tumor resection. These patients underwent FET PET and brain MRIs, both after diagnosis and before RT-CT. The follow-up consisted of sequential brain MRIs performed every 3 months until recurrence. Tumor delineation on the initial MRI 1 (GTV 1), post-RT-CT NADIR MRI 2 (GTV 2), and progression MRI 3 (GTV 3) were performed semi-automatically and manually adjusted by a neuroradiologist specialist in neuro-oncology. GTV 2 and GTV 3 were then co-registered on FET PET data. Tumor volumes on FET PET (MTV) were delineated using a tumor to background ratio (TBR) ≥ 1.6 and different % SUVmax PET thresholds. Spatial similarity between different volumes was performed using the dice (DICE), Jaccard (JSC), and overlap fraction (OV) indices and compared together in the biopsy or partial surgery group (G1) and the total or subtotal surgery group (G2). Another overlap index (OV') was calculated to determine the threshold with the highest probability of being included in the residual volume after RT-CT on MRI 2 and in MRI 3 (called "hotspot"). A total of 23 patients were included, of whom 22% (n = 5) did not have a NADIR MRI 2 due to a disease progression diagnosed on the first post-RT-CT MRI evaluation. Among the 18 patients who underwent a NADIR MRI 2, the average residual tumor was approximately 71.6% of the GTV 1. A total of 22% of patients (5/23) showed an increase in GTV 2 without diagnosis of true progression by the multidisciplinary team (MDT). Spatial similarity between MTV and GTV 2 and between MTV and GTV 3 were higher using a TBR ≥ 1.6 threshold. These indices were significantly better in the G1 group than the G2 group. In the FET hotspot analysis, the best similarity (good agreement) with GTV 2 was found in the G1 group using a 90% SUVmax delineation method and showed a trend of statistical difference with those (poor agreement) in the G2 group (OV' = 0.67 vs. 0.38, respectively, p = 0.068); whereas the best similarity (good agreement) with GTV 3 was found in the G1 group using a 80% SUVmax delineation method and was significantly higher than those (poor agreement) in the G2 group (OV'= 0.72 vs. 0.35, respectively, p = 0.014). These results showed modest spatial similarity indices between MTV, GTV 2, and GTV 3 of HGG. Nevertheless, the results were significantly improved in patients who underwent only biopsy or partial surgery. TBR ≥ 1.6 and 80-90% SUVmax FET delineation methods showing a good agreement in the hotspot concept for targeting standard dose and radiation boost. These findings need to be tested in a larger randomized prospective study.
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Affiliation(s)
- Bastien Allard
- Nuclear Medicine Department, University Hospital, 29200 Brest, France
- UFR Médecine, University of Western Brittany (UBO), 29200 Brest, France
| | - Brieg Dissaux
- UFR Médecine, University of Western Brittany (UBO), 29200 Brest, France
- GETBO UMR U_1304, Inserm, University of Western Brittany (UBO), 29200 Brest, France
- Radiology Department, University Hospital, 29200 Brest, France
| | - David Bourhis
- Nuclear Medicine Department, University Hospital, 29200 Brest, France
- UFR Médecine, University of Western Brittany (UBO), 29200 Brest, France
- GETBO UMR U_1304, Inserm, University of Western Brittany (UBO), 29200 Brest, France
| | - Gurvan Dissaux
- UFR Médecine, University of Western Brittany (UBO), 29200 Brest, France
- Radiation Oncology Department, University Hospital, 29200 Brest, France
- LaTIM, INSERM 1101, 29200 Brest, France
| | - Ulrike Schick
- UFR Médecine, University of Western Brittany (UBO), 29200 Brest, France
- Radiation Oncology Department, University Hospital, 29200 Brest, France
- LaTIM, INSERM 1101, 29200 Brest, France
| | - Pierre-Yves Salaün
- Nuclear Medicine Department, University Hospital, 29200 Brest, France
- UFR Médecine, University of Western Brittany (UBO), 29200 Brest, France
- GETBO UMR U_1304, Inserm, University of Western Brittany (UBO), 29200 Brest, France
| | - Ronan Abgral
- Nuclear Medicine Department, University Hospital, 29200 Brest, France
- UFR Médecine, University of Western Brittany (UBO), 29200 Brest, France
- GETBO UMR U_1304, Inserm, University of Western Brittany (UBO), 29200 Brest, France
| | - Solène Querellou
- Nuclear Medicine Department, University Hospital, 29200 Brest, France
- UFR Médecine, University of Western Brittany (UBO), 29200 Brest, France
- GETBO UMR U_1304, Inserm, University of Western Brittany (UBO), 29200 Brest, France
- Correspondence:
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Ichter J, Gargominy O, Leccia MF, Robert S, Poncet L. The first large-scale All Taxa Biodiversity Inventory in Europe: description of the Mercantour National Park ATBI datasets. Biodivers Data J 2022; 10:e85901. [PMID: 36761580 PMCID: PMC9836634 DOI: 10.3897/bdj.10.e85901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 08/09/2022] [Indexed: 12/24/2022] Open
Abstract
Background An All Taxa Biodiversity Inventory (ATBI) is a comprehensive inventory of all species in a given territory. In 2007, the French Parc national du Mercantour and the Italian Parco Naturale Alpi Marittime started the first and most ambitious ATBI in Europe with more than 350 specialists and dozens of technicians and data managers involved. New information The ATBI datasets from the Parc national du Mercantour in France are now publicly available. Between 2007 and 2020, 247,674 occurrences were recorded, checked and published in the INPN information system. All this information is available in open access in the GBIF web site. With 12,640 species registered, the ATBI is the most important inventory in France. This data paper provides an overview of main results and its contribution to the French National Inventory of Natural Heritage. It includes a list of 52 taxa new to science and 53 species new to France, discovered thanks to the ATBI.
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Affiliation(s)
- Jean Ichter
- Muséum national d'Histoire naturelle (correspondent), Paris, FranceMuséum national d'Histoire naturelle (correspondent)ParisFrance
| | - Olivier Gargominy
- PatriNat (OFB/MNHN/CNRS), Paris, FrancePatriNat (OFB/MNHN/CNRS)ParisFrance
| | - Marie-France Leccia
- Parc national du Mercantour, Nice, FranceParc national du MercantourNiceFrance
| | - Solène Robert
- PatriNat (OFB/MNHN/CNRS), Paris, FrancePatriNat (OFB/MNHN/CNRS)ParisFrance
| | - Laurent Poncet
- PatriNat (OFB/MNHN/CNRS), Paris, FrancePatriNat (OFB/MNHN/CNRS)ParisFrance
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Shen Y, Huang L, Wu X. Visualization analysis on the research topic and hotspot of online learning by using CiteSpace-Based on the Web of Science core collection (2004-2022). Front Psychol 2022; 13:1059858. [PMID: 36619019 PMCID: PMC9810495 DOI: 10.3389/fpsyg.2022.1059858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 11/23/2022] [Indexed: 01/10/2023] Open
Abstract
The objective of this research is to establish a better understanding of the current landscape of online learning research and development. Data were collected from the Web of Science (including SCI-EXPANDED, SSCI, and AHCI), which contains articles published from 2004 to 2022. A total of 25,382 pieces of data were collected. The data were visualized and analyzed using Citespace. The results show that the USA, China, and England are the main research countries in online learning; the Open University, Nanyang Technology University, and Monash University are the main research institutions; and Hwang Ggo-Jen, Huang Yueh-Min, and Chen Nian-Shing were the lead researchers. Major research topics in the field of online learning include MOOCs, flipped classrooms, COVID-19, computer-supported collaborative learning, the technology acceptance model, communities of inquiry, and distance learning. Meanwhile, each topic includes some classical literature. Computers & Education, Educational Technology Research and Development, the Internet, and Higher Education are three highly cited journals. Research hotspots mainly include three types of terms: student-related, learning-system-related, and teacher-related. Finally, we proposed further study ideas for future paths.
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Affiliation(s)
- Youhua Shen
- Physical Education College, Jiangxi Institute of Applied Science and Technology, Nanchang, Jiangxi Province, China
| | - Lehui Huang
- Faculty of Education, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi Province, China
| | - Xueshi Wu
- Faculty of Education, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi Province, China,*Correspondence: Xueshi Wu,
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Xi T, Guo R, Wu X, Jiang H, Xiong J. A bibliometric and visualized research on global trends of abdominoplasty, 2011-2021. J Cosmet Dermatol 2022; 21:6893-6901. [PMID: 36047672 DOI: 10.1111/jocd.15342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/18/2022] [Accepted: 08/28/2022] [Indexed: 01/06/2023]
Abstract
OBJECTIVES Patients with multiple pregnancies, multiple pregnancies, and a history of severe obesity, the abdominal wall muscles, and skin exhibit rectus abdominis separation and skin laxity due to prolonged overstretching, which causes damage to both the patient's appearance and health. Abdominoplasty is a surgical solution to the problems of separation of the rectus abdominis muscle and laxity of the skin of the abdominal wall under direct vision, which is important for patients with the above problems. Currently, many studies have been reported on abdominoplasty, however, no reverent bibliometric analyses of abdominoplasty have been published. METHODS In this study, we screened 1,119 studies on abdominoplasty between 2011 and 2021 based on the Web of Science Core Collection (WOSCC) database and performed a bibliometric analysis. RESULTS We found that high-quality research related to abdominoplasty has increased in the last decade, and the United States was the leading country in the field of abdominoplasty. Stanford university ranked first in number of publications and citations. Aesthetic surgery journal was the most productive journal, followed by the Plastic and reconstructive surgery and Aesthetic plastic surgery. In addition, bariatric surgery, venous thromboembolism, rectus diastasis, breast reconstruction and umbilicoplasty are the keywords of recent publications that are the focus of current research. CONCLUSION This study provides a comprehensive analysis and visualization of global research trends on abdominoplasty from 2011 to 2021, and improvements in abdominoplasty to reduce the incidence of postoperative complications will remain a focus of future research.
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Affiliation(s)
- Tingting Xi
- Department of Plastic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Rong Guo
- Department of Plastic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xuemei Wu
- Department of Plastic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hua Jiang
- Department of Plastic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jiachao Xiong
- Department of Plastic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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Lashen A, Toss MS, Green AR, Mongan NP, Rakha E. Ki67 assessment in invasive luminal breast cancer: a comparative study between different scoring methods. Histopathology 2022; 81:786-798. [PMID: 35997652 PMCID: PMC9826086 DOI: 10.1111/his.14781] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/09/2022] [Accepted: 08/21/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Ki67 reflects the proliferation activity in breast cancer (BC). However, an optimal method for its assessment in clinical settings has yet to be robustly defined. In this study we compared several methods to score Ki67 to identify a reliable and reproducible method for routine practice. METHODS Sections from luminal BC cohort (n = 1662) were immunohistochemically stained with Ki67 and were assessed for the percentage, pattern, and intensity of expression. Ki67 positivity was evaluated using three methods: (i) quantification of Ki67-positive cells among 1000 invasive tumour cells within hotspot, (ii) average estimation of Ki67 within a defined hotspot, and (iii) average estimation of Ki67 positivity within the whole section. Time required for scoring, interobserver agreement and association with outcome were determined. RESULTS The mean percentage of Ki67 expression per 1000 cells method was 16%, while the mean value of Ki67 scores using the average estimation within hotspot and whole slide were 14% and 12%, respectively. Quantification of Ki67-positive cells within 1000 cells had the highest degree of consistency between observers, and the highest hazard ratio predicting patient outcome when compared to using different common Ki67 cutoffs, which was independent of the other two methods. Granular pattern of Ki67 expression was associated with poorer outcome as compared to the other patterns. CONCLUSION Assessment of Ki67 expression using quantification positive cells among 1000 tumour cells is an optimal method to achieve high reliability and reproducibility. Comment on the predominant Ki67 expression pattern would add prognostic and predictive value in luminal BC.
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Affiliation(s)
- Ayat Lashen
- Academic Unit for Translational Medical Sciences, School of MedicineUniversity of NottinghamNottinghamUK,Department of Pathology, Faculty of MedicineMenoufia UniversityShebin El KomEgypt,Nottingham Breast Cancer Research CentreUniversity of NottinghamNottinghamUK
| | - Michael S Toss
- Academic Unit for Translational Medical Sciences, School of MedicineUniversity of NottinghamNottinghamUK,Nottingham Breast Cancer Research CentreUniversity of NottinghamNottinghamUK,Department of HistopathologySheffield Teaching Hospitals NHS Foundation Trust SheffieldUK
| | - Andrew R Green
- Academic Unit for Translational Medical Sciences, School of MedicineUniversity of NottinghamNottinghamUK,Nottingham Breast Cancer Research CentreUniversity of NottinghamNottinghamUK
| | - Nigel P Mongan
- School of Veterinary Medicine and SciencesUniversity of NottinghamNottinghamUK,Department of PharmacologyWeill Cornell MedicineNew YorkUSA
| | - Emad Rakha
- Academic Unit for Translational Medical Sciences, School of MedicineUniversity of NottinghamNottinghamUK,Department of Pathology, Faculty of MedicineMenoufia UniversityShebin El KomEgypt,Nottingham Breast Cancer Research CentreUniversity of NottinghamNottinghamUK
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Janagama SR, Strehlow MC, Rao RGV, Kohn MA, Newberry JA. Utility of prehospital call center ambulance dispatch data for COVID-19 cluster surveillance: A retrospective analysis. Acad Emerg Med 2022; 29:1447-1452. [PMID: 36271649 PMCID: PMC9874460 DOI: 10.1111/acem.14612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/14/2022] [Accepted: 10/20/2022] [Indexed: 01/27/2023]
Abstract
INTRODUCTION Cluster surveillance, identification, and containment are primary outbreak management techniques; however, adapting these for low- and middle-income countries is an ongoing challenge. We aimed to evaluate the utility of prehospital call center ambulance dispatch (CCAD) data for surveillance by examining the correlation between influenza-like illness (ILI)-related dispatch calls and COVID-19 cases. METHODS We performed a retrospective analysis of state-level CCAD and COVID-19 data recorded between January 1 and April 30, 2020, in Telangana, India. The primary outcome was a time series correlation between ILI calls in CCAD and COVID-19 case counts. Secondarily, we looked for a year-to-year correlation of ILI calls in the same period over 2018, 2019, and 2020. RESULTS On average, ILI calls comprised 12.9% (95% CI 11.7%-14.1%) of total daily calls in 2020, compared to 7.8% (95% CI 7.6%-8.0%) in 2018, and 7.7% (95% CI 7.5%-7.7%) in 2019. ILI call counts from 2018, 2019, and 2020 aligned closely until March 19, when 2020 ILI calls increased, representing 16% of all calls by March 23 and 27.5% by April 7. In contrast to the significant correlation observed between 2020 and previous years' January-February calls (2020 and 2019-Durbin-Watson test statistic [DW] = 0.749, p < 0.001; 2020 and 2018-DW = 1.232, p < 0.001), no correlation was observed for March-April calls (2020 and 2019-DW = 2.012, p = 0.476; 2020 and 2018-DW = 1.820, p = 0.208). In March-April 2020, the daily reported COVID-19 cases by time series significantly correlated with the ILI calls (DW = 0.977, p < 0.001). The ILI calls on a specific day significantly correlated with the COVID-19 cases reported 6 days prior and up to 14 days after (cross-correlation > 0.251, the 95% upper confidence limit). CONCLUSIONS The statistically significant time series correlation between ILI calls and COVID-19 cases suggests prehospital CCAD can be part of early warning systems aiding outbreak cluster surveillance, identification, and containment.
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Affiliation(s)
- Srinivasa Rao Janagama
- Department of Emergency MedicineStanford University School of MedicineStanfordCaliforniaUSA
| | - Matthew C. Strehlow
- Department of Emergency MedicineStanford University School of MedicineStanfordCaliforniaUSA
| | - Ramana G. V. Rao
- Emergency Medicine Learning CentreGVK Emergency Management Research InstituteSecunderabadTelanganaIndia
| | - Michael A. Kohn
- Department of Epidemiology & Biostatistics, School of MedicineUniversity of California San FranciscoSan FranciscoCaliforniaUSA
| | - Jennifer A. Newberry
- Department of Emergency MedicineStanford University School of MedicineStanfordCaliforniaUSA
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Hwang JK. Effect of Contact Point of Wire Ring on Cooling Behavior during Stelmor Cooling. Materials (Basel) 2022; 15:8262. [PMID: 36431747 PMCID: PMC9695018 DOI: 10.3390/ma15228262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
The influence of the contact point of wire rod on the inhomogeneity of cooling behavior within wire ring was investigated to reveal the fundamental cooling mechanism of wire rod during the Stelmor cooling process. A hotspot, a relatively high-temperature region within wire ring compared with other regions, was generated in both the central (WRc) and edge (WRe) regions of the wire ring. The WRe exhibited hotspots regardless of ring configuration. Meanwhile, the WRc exhibited hotspots with an inline arrangement; otherwise, no hotspot occurred in the WRc with a staggered arrangement. Compared with the middle regions of the wire ring, hotspots easily occurred at both the WRc and WRe due to the low-contact angle of the two wire rings. Moreover, the possibility of hotspot formation increased with increasing wire diameter due to the high-contact area and load caused by the weight of the wire rod. This is the primary reason why the WRc with a large diameter had hotspots despite the large ring pitch. Three solutions were suggested to improve the homogeneity in the mechanical properties within wire ring.
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Affiliation(s)
- Joong-Ki Hwang
- School of Mechatronics Engineering, Korea University of Technology & Education, Cheonan 31253, Republic of Korea
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Katile A, Sagara I, Cissoko M, Bationo CS, Dolo M, Thera I, Traore S, Kone M, Dembele P, Bocoum D, Sidibe I, Simaga I, Sissoko MS, Landier J, Gaudart J. Spatio-Temporal Variability of Malaria Incidence in the Health District of Kati, Mali, 2015-2019. Int J Environ Res Public Health 2022; 19:14361. [PMID: 36361240 PMCID: PMC9656757 DOI: 10.3390/ijerph192114361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 10/28/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
INTRODUCTION Despite the implementation of control strategies at the national scale, the malaria burden remains high in Mali, with more than 2.8 million cases reported in 2019. In this context, a new approach is needed, which accounts for the spatio-temporal variability of malaria transmission at the local scale. This study aimed to describe the spatio-temporal variability of malaria incidence and the associated meteorological and environmental factors in the health district of Kati, Mali. METHODS Daily malaria cases were collected from the consultation records of the 35 health areas of Kati's health district, for the period 2015-2019. Data on rainfall, relative humidity, temperature, wind speed, the normalized difference vegetation index, air pressure, and land use-land cover were extracted from open-access remote sensing sources, while data on the Niger River's height and flow were obtained from the National Department of Hydraulics. To reduce the dimension and account for collinearity, strongly correlated meteorological and environmental variables were combined into synthetic indicators (SI), using a principal component analysis. A generalized additive model was built to determine the lag and the relationship between the main SIs and malaria incidence. The transmission periods were determined using a change-point analysis. High-risk clusters (hotspots) were detected using the SatScan method and were ranked according to risk level, using a classification and regression tree analysis. RESULTS The peak of the malaria incidence generally occurred in October. Peak incidence decreased from 60 cases per 1000 person-weeks in 2015, to 27 cases per 1000 person-weeks in 2019. The relationship between the first SI (river flow and height, relative humidity, and rainfall) and malaria incidence was positive and almost linear. A non-linear relationship was found between the second SI (air pressure and temperature) and malaria incidence. Two transmission periods were determined per year: a low transmission period from January to July-corresponding to a persisting transmission during the dry season-and a high transmission period from July to December. The spatial distribution of malaria hotspots varied according to the transmission period. DISCUSSION Our study confirmed the important variability of malaria incidence and found malaria transmission to be associated with several meteorological and environmental factors in the Kati district. The persistence of malaria during the dry season and the spatio-temporal variability of malaria hotspots reinforce the need for innovative and targeted strategies.
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Affiliation(s)
- Abdoulaye Katile
- INSERM, IRD, SESSTIM, ISSPAM, UMR1252, Faculty of Medicine, Aix Marseille University, 13005 Marseille, France
- Malaria Research and Training Center (MRTC), FMOS-FAPH, Mali-NIAID-ICER, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako BP 423, Mali
| | - Issaka Sagara
- INSERM, IRD, SESSTIM, ISSPAM, UMR1252, Faculty of Medicine, Aix Marseille University, 13005 Marseille, France
- Malaria Research and Training Center (MRTC), FMOS-FAPH, Mali-NIAID-ICER, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako BP 423, Mali
| | - Mady Cissoko
- INSERM, IRD, SESSTIM, ISSPAM, UMR1252, Faculty of Medicine, Aix Marseille University, 13005 Marseille, France
- Malaria Research and Training Center (MRTC), FMOS-FAPH, Mali-NIAID-ICER, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako BP 423, Mali
| | - Cedric Stephane Bationo
- INSERM, IRD, SESSTIM, ISSPAM, UMR1252, Faculty of Medicine, Aix Marseille University, 13005 Marseille, France
| | - Mathias Dolo
- Malaria Research and Training Center (MRTC), FMOS-FAPH, Mali-NIAID-ICER, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako BP 423, Mali
| | - Ismaila Thera
- Malaria Research and Training Center (MRTC), FMOS-FAPH, Mali-NIAID-ICER, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako BP 423, Mali
| | - Siriman Traore
- Malaria Research and Training Center (MRTC), FMOS-FAPH, Mali-NIAID-ICER, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako BP 423, Mali
| | - Mamady Kone
- Malaria Research and Training Center (MRTC), FMOS-FAPH, Mali-NIAID-ICER, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako BP 423, Mali
| | - Pascal Dembele
- Programme National de Lutte Contre le Paludisme, Bamako BP 233, Mali
| | - Djoouro Bocoum
- Direction Nationale de L’Hydraulique, Bamako BP 66, Mali
| | | | - Ismael Simaga
- Centre de Santé de Référence du District Sanitaire de Kati, Région de Koulikoro, Kati BP 594, Mali
| | - Mahamadou Soumana Sissoko
- Malaria Research and Training Center (MRTC), FMOS-FAPH, Mali-NIAID-ICER, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako BP 423, Mali
| | - Jordi Landier
- INSERM, IRD, SESSTIM, ISSPAM, UMR1252, Faculty of Medicine, Aix Marseille University, 13005 Marseille, France
| | - Jean Gaudart
- Malaria Research and Training Center (MRTC), FMOS-FAPH, Mali-NIAID-ICER, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako BP 423, Mali
- APHM, INSERM, IRD, SESSTIM, ISSPAM, UMR1252, Hop Timone, BioSTIC, Biostatistic & ICT, Faculty of Medicine, Aix Marseille University, 13005 Marseille, France
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Chen YJ, Shimizu Bassi G, Wang Y, Yang YQ. Research hotspot and frontier analysis of traditional Chinese medicine in asthma using bibliometric methods from 1991 to 2021. J Allergy Clin Immunol Glob 2022; 1:185-197. [PMID: 37779535 PMCID: PMC10509992 DOI: 10.1016/j.jacig.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 06/30/2022] [Accepted: 07/31/2022] [Indexed: 10/03/2023]
Abstract
Traditional Chinese medicine (TCM) has been successfully used to treat asthmatic conditions for centuries. Nevertheless, the current hotspots and research frontiers on TCM for asthma have not been systematically investigated on the basis of bibliometric analysis. In this study, a scientometric analysis (1991-2021) was carried out on 3081 journal articles obtained from the Web of Science Core Collection database to explore the basic characteristics, research hotspots, and frontiers of TCM in asthma research. The results revealed the following: (1) Research on TCM in asthma has received widespread attention since the beginning of the 21st century; perhaps 2009 was an important turning point. TCM in asthma research shows a trend of interdisciplinary development. (2) Well-known universities/institutions in China, the United States, and South Korea have conducted the main body of current TCM research in asthma. JingCheng Dong (Fudan University, China) and XiuMin Li (Mount Sinai School of Medicine, USA) are the top 2 leading authors in this field. However, there is still a lack of international cooperation in the field of TCM in asthma research, and the influence of researchers in China and South Korea still needs improvement. (3) The Journal of Allergy and Clinical Immunology ranks first in the research field on the influence of TCM in asthma. (4) Hotspots and frontiers of TCM in asthma are provided according to the timeline analyses of the research. In the former, complementary medicine, alternative treatment, allergic rhinitis, airway remodeling, Dietary Approach to Stop Hypertension diet, and eosinophilic esophagitis are in the exploratory stage. In the latter, pharmacology, essential oil, gut microbiota, and oxidative stress were investigated from 2006 until late 2021 as period B, which contradicts period A (1991-2005). Moreover, limitations of this bibliometric analysis and the study of TCM research in asthma still exist, which are sufficiently important to warrant further investigations. Finally, we propose the significant importance of the real quintessence and characteristics of TCM in clinical and future research.
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Affiliation(s)
- Yan-Jiao Chen
- Shanghai Research Institute of Acupuncture and Meridian, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Gabriel Shimizu Bassi
- Shanghai Research Institute of Acupuncture and Meridian, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Yu Wang
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yong-Qing Yang
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Deng Z, Luo F, Lin Y, Luo J, Ke D, Song C, Xu J. Research trends of mesenchymal stem cells application in orthopedics: A bibliometric analysis of the past 2 decades. Front Public Health 2022; 10:1021818. [PMID: 36225768 PMCID: PMC9548591 DOI: 10.3389/fpubh.2022.1021818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/07/2022] [Indexed: 01/28/2023] Open
Abstract
Background Bibliometric analysis and visualization tools were used to determine the development trend of mesenchymal stem cells (MSCs) in orthopedics in the past 20 years, so as to guide researchers to explore new directions and hotspots in the field in the future. Methods In the Web of Science Core Collection, all articles about the application of MSCs in orthopedics from 2002 to 2021 were searched. The qualitative and quantitative analysis was performed based on Web of Science and CiteSpace software. Results A total of 2,207 articles were retrieved. After excluding non-article articles such as review and letter and non-English language articles, 1,489 articles were finally included. Over the past 2 decades, the number of publications on the application of MSCs in orthopedic diseases increased. Among them, the United States, China, Japan and the United Kingdom have made significant contributions in this field. The most productive institution was Shanghai Jiao Tong University. Journal of Orthopedic Research published the largest number of publications. The journal with the highest citation frequency was Experimental Hematology. The authors with the highest output and the highest citation frequency on average were Rochy S. Tuan and Scott A. Rodeo, respectively. "Mesenchymal stem cell", "in vitro" and "Differentiation" were the top three keywords that appeared. From the keyword analysis, the current research trend indicates that the primary research hotspots of MSCs in orthopedics are the source of MSCs, in vitro experiments and the differentiation of MSCs into bone and cartilage. The frontiers of this field are the combination of MSCs and platelet-rich plasma (PRP), the treatment of knee diseases such as osteoarthritis, osteogenic differentiation, and the application of biological scaffolds combined with MSCs. Conclusion Over the past 2 decades, the application of MSCs in orthopedic diseases has received increasing attention. Our bibliometric analysis results provide valuable information and research trends for researchers in the field to understand the basic knowledge of the field, identify current research hotspots, potential collaborators, and future research frontiers.
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Yu H, Wang T, Skidmore A, Heurich M, Bässler C. 50 Years of Cumulative Open-Source Data Confirm Stable and Robust Biodiversity Distribution Patterns for Macrofungi. J Fungi (Basel) 2022; 8:981. [PMID: 36135705 DOI: 10.3390/jof8090981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/12/2022] [Accepted: 09/16/2022] [Indexed: 11/17/2022] Open
Abstract
Fungi are a hyper-diverse kingdom that contributes significantly to the regulation of the global carbon and nutrient cycle. However, our understanding of the distribution of fungal diversity is often hindered by a lack of data, especially on a large spatial scale. Open biodiversity data may provide a solution, but concerns about the potential spatial and temporal bias in species occurrence data arising from different observers and sampling protocols challenge their utility. The theory of species accumulation curves predicts that the cumulative number of species reaches an asymptote when the sampling effort is sufficiently large. Thus, we hypothesize that open biodiversity data could be used to reveal large-scale macrofungal diversity patterns if these datasets are accumulated long enough. Here, we tested our hypothesis with 50 years of macrofungal occurrence records in Norway and Sweden that were downloaded from the Global Biodiversity Information Facility (GBIF). We first grouped the data into five temporal subsamples with different cumulative sampling efforts (i.e., accumulation of data for 10, 20, 30, 40 and 50 years). We then predicted the macrofungal diversity and distribution at each subsample using the maximum entropy (MaxEnt) species distribution model. The results revealed that the cumulative number of macrofungal species stabilized into distinct distribution patterns with localized hotspots of predicted macrofungal diversity with sampling efforts greater than approximately 30 years. Our research demonstrates the utility and importance of the long-term accumulated open biodiversity data in studying macrofungal diversity and distribution at the national level.
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Wu HY, Lin HC, Hung GY, Tu CS, Liu TY, Hong CH, Yu G, Hsu JC. High Sensitivity SERS Substrate of a Few Nanometers Single-Layer Silver Thickness Fabricated by DC Magnetron Sputtering Technology. Nanomaterials (Basel) 2022; 12:nano12162742. [PMID: 36014606 PMCID: PMC9415801 DOI: 10.3390/nano12162742] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/06/2022] [Accepted: 08/09/2022] [Indexed: 05/10/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is commonly used for super-selective analysis through nanostructured silver layers in the environment, food quality, biomedicine, and materials science. To fabricate a high-sensitivity but a more accessible device of SERS, DC magnetron sputtering technology was used to realize high sensitivity, low cost, a stable deposition rate, and rapid mass production. This study investigated various thicknesses of a silver film ranging from 3.0 to 12.1 nm by field emission scanning electron microscope, X-ray diffraction, and X-ray photoelectron spectroscopy. In the rhodamine 6G (R6G) testing irradiated by a He-Ne laser beam, the analytical enhancement factor (AEF) of 9.35 × 108, the limit of detection (LOD) of 10-8 M, and the relative standard deviation (RSD) of 1.61% were better than the other SERS substrates fabricated by the same DC sputtering process because the results showed that the 6 nm thickness silver layer had the highest sensitivity, stability, and lifetime. The paraquat and acetylcholine analytes were further investigated and high sensitivity was also achievable. The proposed SERS samples were evaluated and stored in a low humidity environment for up to forty weeks, and no spectrum attenuation could be detected. Soon, the proposed technology to fabricate high sensitivity, repeatability, and robust SERS substrate will be an optimized process technology in multiple applications.
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Affiliation(s)
- Hsing-Yu Wu
- System Manufacturing Center, National Chung-Shan Institute of Science and Technology, New Taipei City 237209, Taiwan
- Center for Astronomical Physics and Engineering, Department of Optics and Photonics, National Central University, Taoyuan City 320317, Taiwan
| | - Hung-Chun Lin
- Department of Physics, Fu Jen Catholic University, New Taipei City 242062, Taiwan
| | - Guan-Yi Hung
- Department of International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Chi-Shun Tu
- Department of Physics, Fu Jen Catholic University, New Taipei City 242062, Taiwan
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Chung-Hung Hong
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, 5 Fu-Shing St., Taoyuan 33333, Taiwan
| | - Guoyu Yu
- Department of Engineering and Technology, School of Computing and Engineering, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK
| | - Jin-Cherng Hsu
- Department of Physics, Fu Jen Catholic University, New Taipei City 242062, Taiwan
- Graduate Institute of Applied Science and Engineering, Fu Jen Catholic University, New Taipei City 242062, Taiwan
- Correspondence: ; Tel.: +886-2-29053765
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