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A scoping review of current practices on community engagement in rural East Africa: Recommendations for snakebite envenoming 对东非农村社区参与的现行做法进行范围审查:蛇咬伤预防建议
Toxicon: X Pub Date : 2021-09-01 DOI: 10.1016/j.toxcx.2021.100073
Bethany Moos , David Williams , Isabelle Bolon , Denise Mupfasoni , Bernadette Abela-Ridder , Rafael Ruiz de Castaneda
{"title":"A scoping review of current practices on community engagement in rural East Africa: Recommendations for snakebite envenoming","authors":"Bethany Moos ,&nbsp;David Williams ,&nbsp;Isabelle Bolon ,&nbsp;Denise Mupfasoni ,&nbsp;Bernadette Abela-Ridder ,&nbsp;Rafael Ruiz de Castaneda","doi":"10.1016/j.toxcx.2021.100073","DOIUrl":"10.1016/j.toxcx.2021.100073","url":null,"abstract":"<div><p>Community empowerment and engagement is one of the four strategic aims highlighted in the WHO strategy to prevent and control snakebite envenoming. Inappropriate health-seeking behaviours contribute to adverse outcomes, and community engagement is key in driving behavioural change. WHO has highlighted East Africa as a geographical area of concern for snakebite envenoming. The overall aim of the project is to develop a community engagement toolkit for snakebite envenoming and other NTDs. The objective of this scoping review was to identify current practices in recent community engagement in rural East Africa; the applicability of these results to snakebite envenoming are discussed. <em>PubMed, Web of Science</em>, <em>PsycINFO</em> and <em>Google Scholar</em> were searched from 1 January 2017 to 3 September 2020. Search terms were used to identify publications which related to rural communities and health or disease, for both humans and animals. After reviewing the full papers for all geographical areas, 112 publications were included, 30 of which were conducted in East Africa. Papers included nine different countries and covered a broad range of health topics; notably, water, sanitation and hygiene, nutrition, and maternal and child health. Only one publication considered animal health. The most common form of engagement was in the context of a group meeting, lecture, presentation, discussion or question and answer session (63.3%). A variety of locations within the community were used to engage with people, the most common being an individual's household (23.3%). Communication factors was the key influencer for engagement, both positively and negatively. Key barriers to engagement include local languages and health beliefs, literacy levels, mobile phone ownership and the level of mobile Internet coverage, burden of agricultural work and weather conditions. This study provides an extensive overview of recent public health community engagement in East Africa, which will serve as a useful resource for any group seeking to plan an intervention in remote and rural areas in East Africa. Furthermore, it serves as a guide to help tailor community engagement to snakebite envenoming.</p></div>","PeriodicalId":37124,"journal":{"name":"Toxicon: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.toxcx.2021.100073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39303385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Addressing the global snakebite crisis with geo-spatial analyses – Recent advances and future direction 通过地理空间分析应对全球蛇咬伤危机——最新进展和未来方向。
Toxicon: X Pub Date : 2021-09-01 DOI: 10.1016/j.toxcx.2021.100076
Anna F.V. Pintor , Nicolas Ray , Joshua Longbottom , Carlos A. Bravo-Vega , Masoud Yousefi , Kris A. Murray , Dileepa S. Ediriweera , Peter J. Diggle
{"title":"Addressing the global snakebite crisis with geo-spatial analyses – Recent advances and future direction","authors":"Anna F.V. Pintor ,&nbsp;Nicolas Ray ,&nbsp;Joshua Longbottom ,&nbsp;Carlos A. Bravo-Vega ,&nbsp;Masoud Yousefi ,&nbsp;Kris A. Murray ,&nbsp;Dileepa S. Ediriweera ,&nbsp;Peter J. Diggle","doi":"10.1016/j.toxcx.2021.100076","DOIUrl":"10.1016/j.toxcx.2021.100076","url":null,"abstract":"<div><p>Venomous snakebite is a neglected tropical disease that annually leads to hundreds of thousands of deaths or long-term physical and mental ailments across the developing world. Insufficient data on spatial variation in snakebite risk, incidence, human vulnerability, and accessibility of medical treatment contribute substantially to ineffective on-ground management. There is an urgent need to collect data, fill knowledge gaps and address on-ground management problems. The use of novel, and transdisciplinary approaches that take advantage of recent advances in spatio-temporal models, ‘big data’, high performance computing, and fine-scale spatial information can add value to snakebite management by strategically improving our understanding and mitigation capacity of snakebite. We review the background and recent advances on the topic of snakebite related geospatial analyses and suggest avenues for priority research that will have practical on-ground applications for snakebite management and mitigation. These include streamlined, targeted data collection on snake distributions, snakebites, envenomings, venom composition, health infrastructure, and antivenom accessibility along with fine-scale models of spatio-temporal variation in snakebite risk and incidence, intraspecific venom variation, and environmental change modifying human exposure. These measures could improve and ‘future-proof’ antivenom production methods, antivenom distribution and stockpiling systems, and human-wildlife conflict management practices, while simultaneously feeding into research on venom evolution, snake taxonomy, ecology, biogeography, and conservation.</p></div>","PeriodicalId":37124,"journal":{"name":"Toxicon: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.toxcx.2021.100076","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39320203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Integrating lay knowledge and practice into snakebite prevention and care in central Africa, a hotspot for envenomation 将非专业知识和实践融入中部非洲毒蛇咬伤预防和护理,这是一个毒蛇咬伤的热点
Toxicon: X Pub Date : 2021-09-01 DOI: 10.1016/j.toxcx.2021.100077
Romain Duda , Wuelton M. Monteiro , Tamara Giles-Vernick
{"title":"Integrating lay knowledge and practice into snakebite prevention and care in central Africa, a hotspot for envenomation","authors":"Romain Duda ,&nbsp;Wuelton M. Monteiro ,&nbsp;Tamara Giles-Vernick","doi":"10.1016/j.toxcx.2021.100077","DOIUrl":"10.1016/j.toxcx.2021.100077","url":null,"abstract":"<div><p>The WHO has identified the goal of halving deaths and disability from snakebite envenomation (SBE) by 2030 through a four-pillar program that promotes accessible and affordable treatments, strengthens health systems, promotes community and multi-level engagement, and mobilizes partnerships, coordination and resources to advocate for global action. This initiative could accelerate multi-disciplinary research and action in central Africa, a “hotspot” for SBE, but it offers little specific guidance about anthropological research to be conducted. This commentary develops that research agenda. It surveys anthropological, ethnohistorical investigations in the central African forest to elaborate the socio-cultural and historical significance and practices around snakes and snakebites. It draws from south and southeast Asian and Latin American literatures to illustrate anthropological contributions to SBE research. It then outlines a Central African research agenda employing ethnobiological investigation of snake ecologies, participatory evaluations of humans-snake contacts, and interviews and participant-observation of local prevention and treatment practices and knowledge. This research will co-develop policies and practices with forest communities and leaders and regional and national authorities to reduce the burden of SBE.</p></div>","PeriodicalId":37124,"journal":{"name":"Toxicon: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.toxcx.2021.100077","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39303383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Delays, fears and training needs: Perspectives of health workers on clinical management of snakebite revealed by a qualitative study in Kitui County, Kenya 延误、恐惧和培训需求:肯尼亚基图伊县的一项定性研究揭示了卫生工作者对蛇咬伤临床管理的看法
Toxicon: X Pub Date : 2021-09-01 DOI: 10.1016/j.toxcx.2021.100078
Kieran Barnes , Cecelia Ngari , Stanley Parkurito , Leo Wood , Denis Otundo , Robert Harrison , George O. Oluoch , Anna Trelfa , Clare Baker
{"title":"Delays, fears and training needs: Perspectives of health workers on clinical management of snakebite revealed by a qualitative study in Kitui County, Kenya","authors":"Kieran Barnes ,&nbsp;Cecelia Ngari ,&nbsp;Stanley Parkurito ,&nbsp;Leo Wood ,&nbsp;Denis Otundo ,&nbsp;Robert Harrison ,&nbsp;George O. Oluoch ,&nbsp;Anna Trelfa ,&nbsp;Clare Baker","doi":"10.1016/j.toxcx.2021.100078","DOIUrl":"10.1016/j.toxcx.2021.100078","url":null,"abstract":"<div><p>Key aims of the WHO Strategy to halve snakebite morbidity and mortality include health system strengthening and training of health workers. This requires knowledge of local health system needs and capacity, health worker training needs, and factors influencing health worker decision-making in snakebite management. This study explored health worker experiences and perceptions of snakebite management, both individually and in the context of their local health system.</p><p>We used a qualitative study design with semi-structured interviews (n = 14) and focus group discussions (n = 4). We employed a combination of sampling strategies aiming to achieve maximum variation among key informants within resource limitations. We recruited health workers (n = 33) of varying roles from purposively selected tier 2, 3 and 4 health facilities (n = 12) and the community (tier 1) in four sub-counties in Kitui County, Kenya. We conducted inductive thematic analysis of all transcripts.</p><p>The results identified that health workers recognised snake envenoming as a time-critical emergency in which delay in care seeking, sometimes exacerbated by health system referral delays, was a major barrier to effective management of patients. Clinicians strongly voiced a need for training in snakebite management, diagnosis and antivenom administration. Unexpressed needs for training were demonstrated in traditional remedy ineffectiveness, syndromic management, and critical appraisal of treatment effectiveness. Under-resourcing in antivenom, other medication, equipment, infrastructure and staffing also challenged management. Fear of snakebite and fear of antivenom, both linked to past experiences, influenced clinical decision-making.</p><p>Our findings clearly indicate a need in Kitui County for training programmes that equip health workers for clinical decision-making in snakebite management. We further identify community intervention needs to facilitate prompt presentation to healthcare, including practical affordable transport solutions, and systematic health system resourcing needs. In addition, we recommend supportive supervision and further research in response to the emotional stress resulting from managing difficult cases in under-resourced settings.</p></div>","PeriodicalId":37124,"journal":{"name":"Toxicon: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/ce/43/main.PMC8350493.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39320202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Clinical management of snakebite envenoming: Future perspectives 蛇咬伤的临床处理:未来展望。
Toxicon: X Pub Date : 2021-09-01 DOI: 10.1016/j.toxcx.2021.100079
Muhammad Hamza , Cecilie Knudsen , Christeine Ariaranee Gnanathasan , Wuelton Monteiro , Matthew R. Lewin , Andreas H. Laustsen , Abdulrazaq G. Habib
{"title":"Clinical management of snakebite envenoming: Future perspectives","authors":"Muhammad Hamza ,&nbsp;Cecilie Knudsen ,&nbsp;Christeine Ariaranee Gnanathasan ,&nbsp;Wuelton Monteiro ,&nbsp;Matthew R. Lewin ,&nbsp;Andreas H. Laustsen ,&nbsp;Abdulrazaq G. Habib","doi":"10.1016/j.toxcx.2021.100079","DOIUrl":"10.1016/j.toxcx.2021.100079","url":null,"abstract":"<div><p>Snakebite envenoming is a major cause of morbidity and mortality in rural communities throughout the tropics. Generally, the main clinical features of snakebites are local swelling, tissue necrosis, shock, spontaneous systemic hemorrhage, incoagulable blood, paralysis, rhabdomyolysis, and acute kidney injury. These clinical manifestations result from complex biochemical venom constituents comprising of cytotoxins, hemotoxins, neurotoxins, myotoxins, and other substances. Timely diagnosis of envenoming and identification of the responsible snake species is clinically challenging in many parts of the world and necessitates prompt and thorough clinical assessment, which could be supported by the development of reliable, affordable, widely-accessible, point-of-care tests. Conventional antivenoms based on polyclonal antibodies derived from animals remain the mainstay of therapy along with supportive medical and surgical care. However, while antivenoms save countless lives, they are associated with adverse reactions, limited potency, and are relatively inefficacious against presynaptic neurotoxicity and in preventing necrosis. Nevertheless, major scientific and technological advances are facilitating the development of new molecular and immunologic diagnostic tests, as well as a new generation of antivenoms comprising human monoclonal antibodies with broader and more potent neutralization capacity and less immunogenicity. Repurposed pharmaceuticals based on small molecule inhibitors (e.g., marimastat and varespladib) used alone and in combination against enzymatic toxins, such as metalloproteases and phospholipase A<sub>2</sub>s, have shown promise in animal studies. These orally bioavailable molecules could serve as early interventions in the out-of-hospital setting if confirmed to be safe and efficacious in clinical studies. Antivenom access can be improved by the usage of drones and ensuring constant antivenom supply in remote endemic rural areas. Overall, the improvement of clinical management of snakebite envenoming requires sustained, coordinated, and multifaceted efforts involving basic and applied sciences, new technology, product development, effective clinical training, implementation of existing guidelines and therapeutic approaches, supported by improved supply of existing antivenoms.</p></div>","PeriodicalId":37124,"journal":{"name":"Toxicon: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.toxcx.2021.100079","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39342043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 19
Snakebite envenoming in different national contexts: Costa Rica, Sri Lanka, and Nigeria 蛇咬伤发生在不同的国家:哥斯达黎加、斯里兰卡和尼日利亚。
Toxicon: X Pub Date : 2021-07-01 DOI: 10.1016/j.toxcx.2021.100066
José María Gutiérrez , Kalana Maduwage , Garba Iliyasu , Abdulrazaq Habib
{"title":"Snakebite envenoming in different national contexts: Costa Rica, Sri Lanka, and Nigeria","authors":"José María Gutiérrez ,&nbsp;Kalana Maduwage ,&nbsp;Garba Iliyasu ,&nbsp;Abdulrazaq Habib","doi":"10.1016/j.toxcx.2021.100066","DOIUrl":"10.1016/j.toxcx.2021.100066","url":null,"abstract":"<div><p>Snakebite envenoming is a neglected tropical disease that predominantly affects impoverished rural communities in sub-Saharan Africa, Asia, and Latin America. The global efforts to reduce the impact of this disease must consider the local national contexts and, therefore, comparative studies on envenomings in different countries are necessary to identify strengths, weaknesses and needs. This work presents a comparative analysis of snakebite envenomings in Costa Rica, Sri Lanka, and Nigeria. The comparison included the following aspects: (a) burden of envenomings, (b) historical background of national efforts to confront envenomings, (c) national health systems, (d) antivenom availability and accessibility including local production, (e) training of physicians and nurses in the diagnosis and management of envenomings, (f) prevention campaigns and community-based work, (g) scientific and technological platforms in these topics, and (h) international cooperation programs. Strengths and weaknesses were identified in the three contexts and several urgent tasks to improve the management of this disease in these countries are highlighted. This comparative analysis could be of benefit for similar studies in other national and regional contexts.</p></div>","PeriodicalId":37124,"journal":{"name":"Toxicon: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.toxcx.2021.100066","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39091636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Implications of global environmental change for the burden of snakebite 全球环境变化对蛇咬伤负担的影响
Toxicon: X Pub Date : 2021-07-01 DOI: 10.1016/j.toxcx.2021.100069
Gerardo Martín , Carlos Yáñez-Arenas , Rodrigo Rangel-Camacho , Kris A. Murray , Eyal Goldstein , Takuya Iwamura , Xavier Chiappa-Carrara
{"title":"Implications of global environmental change for the burden of snakebite","authors":"Gerardo Martín ,&nbsp;Carlos Yáñez-Arenas ,&nbsp;Rodrigo Rangel-Camacho ,&nbsp;Kris A. Murray ,&nbsp;Eyal Goldstein ,&nbsp;Takuya Iwamura ,&nbsp;Xavier Chiappa-Carrara","doi":"10.1016/j.toxcx.2021.100069","DOIUrl":"10.1016/j.toxcx.2021.100069","url":null,"abstract":"<div><p>Snakebite envenoming is a set of intoxication diseases that disproportionately affect people of poor socioeconomic backgrounds in tropical countries. As it is highly dependent on the environment its burden is expected to shift spatially with global anthropogenic environmental (climate, land use) and demographic change. The mechanisms underlying the changes to snakebite epidemiology are related to factors of snakes and humans. The distribution and abundance of snakes are expected to change with global warming via their thermal tolerance, while rainfall may affect the timing of key activities like feeding and reproduction. Human population growth is the primary cause of land-use change, which may impact snakes at smaller spatial scales than climate via habitat and biodiversity loss (e.g. prey availability). Human populations, on the other hand, could experience novel patterns and morbidity of snakebite envenoming, both as a result of snake responses to environmental change and due to the development of agricultural adaptations to climate change, socioeconomic and cultural changes, development and availability of better antivenoms, personal protective equipment, and mechanization of agriculture that mediate risk of encounters with snakes and their outcomes. The likely global effects of environmental and demographic change are thus context-dependent and could encompass both increasing and or snakebite burden (incidence, number of cases or morbidity), exposing new populations to snakes in temperate areas due to “tropicalization”, or by land use change-induced snake biodiversity loss, respectively. Tackling global change requires drastic measures to ensure large-scale ecosystem functionality. However, as ecosystems represent the main source of venomous snakes their conservation should be accompanied by comprehensive public health campaigns. The challenges associated with the joint efforts of biodiversity conservation and public health professionals should be considered in the global sustainability agenda in a wider context that applies to neglected tropical and zoonotic and emerging diseases.</p></div>","PeriodicalId":37124,"journal":{"name":"Toxicon: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.toxcx.2021.100069","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39181245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Citizen science and online data: Opportunities and challenges for snake ecology and action against snakebite 公民科学和在线数据:蛇生态学的机遇和挑战以及对抗蛇咬伤的行动
Toxicon: X Pub Date : 2021-07-01 DOI: 10.1016/j.toxcx.2021.100071
Andrew M. Durso , Rafael Ruiz de Castañeda , Camille Montalcini , M. Rosa Mondardini , Jose L. Fernandez-Marques , François Grey , Martin M. Müller , Peter Uetz , Benjamin M. Marshall , Russell J. Gray , Christopher E. Smith , Donald Becker , Michael Pingleton , Jose Louies , Arthur D. Abegg , Jeannot Akuboy , Gabriel Alcoba , Jennifer C. Daltry , Omar M. Entiauspe-Neto , Paul Freed , Isabelle Bolon
{"title":"Citizen science and online data: Opportunities and challenges for snake ecology and action against snakebite","authors":"Andrew M. Durso ,&nbsp;Rafael Ruiz de Castañeda ,&nbsp;Camille Montalcini ,&nbsp;M. Rosa Mondardini ,&nbsp;Jose L. Fernandez-Marques ,&nbsp;François Grey ,&nbsp;Martin M. Müller ,&nbsp;Peter Uetz ,&nbsp;Benjamin M. Marshall ,&nbsp;Russell J. Gray ,&nbsp;Christopher E. Smith ,&nbsp;Donald Becker ,&nbsp;Michael Pingleton ,&nbsp;Jose Louies ,&nbsp;Arthur D. Abegg ,&nbsp;Jeannot Akuboy ,&nbsp;Gabriel Alcoba ,&nbsp;Jennifer C. Daltry ,&nbsp;Omar M. Entiauspe-Neto ,&nbsp;Paul Freed ,&nbsp;Isabelle Bolon","doi":"10.1016/j.toxcx.2021.100071","DOIUrl":"10.1016/j.toxcx.2021.100071","url":null,"abstract":"<div><p>The secretive behavior and life history of snakes makes studying their biology, distribution, and the epidemiology of venomous snakebite challenging. One of the most useful, most versatile, and easiest to collect types of biological data are photographs, particularly those that are connected with geographic location and date-time metadata. Photos verify occurrence records, provide data on phenotypes and ecology, and are often used to illustrate new species descriptions, field guides and identification keys, as well as in training humans and computer vision algorithms to identify snakes. We scoured eleven online and two offline sources of snake photos in an attempt to collect as many photos of as many snake species as possible, and attempt to explain some of the inter-species variation in photograph quantity among global regions and taxonomic groups, and with regard to medical importance, human population density, and range size. We collected a total of 725,565 photos—between 1 and 48,696 photos of 3098 of the world's 3879 snake species (79.9%), leaving 781 “most wanted” species with no photos (20.1% of all currently-described species as of the December 2020 release of The Reptile Database). We provide a list of most wanted species sortable by family, continent, authority, and medical importance, and encourage snake photographers worldwide to submit photos and associated metadata, particularly of “missing” species, to the most permanent and useful online archives: The Reptile Database, iNaturalist, and HerpMapper.</p></div>","PeriodicalId":37124,"journal":{"name":"Toxicon: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.toxcx.2021.100071","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39197182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Unique venom proteins from Solenopsis invicta x Solenopsis richteri hybrid fire ants 红火蚁与红火蚁杂交火蚁的独特毒液蛋白
Toxicon: X Pub Date : 2021-07-01 DOI: 10.1016/j.toxcx.2021.100065
Steven M. Valles , Jason B. Oliver , Karla M. Addesso , Omaththage P. Perera
{"title":"Unique venom proteins from Solenopsis invicta x Solenopsis richteri hybrid fire ants","authors":"Steven M. Valles ,&nbsp;Jason B. Oliver ,&nbsp;Karla M. Addesso ,&nbsp;Omaththage P. Perera","doi":"10.1016/j.toxcx.2021.100065","DOIUrl":"10.1016/j.toxcx.2021.100065","url":null,"abstract":"<div><p>The Solenopsis venom protein 2 transcript was amplified, sequenced, probed, and analyzed from <em>Solenopsis invicta</em> x <em>Solenopsis richteri</em> hybrid ant colonies (hybrids) collected from across Tennessee to determine the extent of introgression of each parent allele (<em>Solenopsis invicta</em> venom protein 2 [Soli2] and Solenopsis richteri venom protein 2 [Solr2]). Chemotaxonomic analyses of venom alkaloids and cuticular hydrocarbons were used to categorize hybrid colonies and their relative relatedness to each parent species. Hybrid colonies were chosen randomly from each chemotaxonomic hybridization category, including “very near <em>S. richteri</em>,” “near <em>S. richteri</em>,” “near <em>S. invicta</em>,” and “very near <em>S. invicta</em>.” Lateral flow immunoassays for detection of the Soli2 and Solr2 venom proteins were largely in agreement with the chemotaxonomic analyses for the very near <em>S. richteri</em> (100% Solr2) and very near <em>S. invicta</em> (80% Soli2, 20% Soli2 + Solr2 detected in the sample) groups, while Soli2 and Solr2 were reported in 60% and 40% in the near <em>S. invicta</em> and near <em>S. richteri</em> chemotaxonomic groups. Analysis of transcripts from the hybrid colonies revealed a sequence with 100% identity to Soli2 (GenBank Accession L09560) and three unique sequences, which we identify as Solenopsis hybrid venom protein 2 (Solh2; GenBank Accession MT150127), Solenopsis hybrid truncated venom protein 2 (Solh2<sup>Tr97</sup>; Genbank Accession MT150129), and Solenopsis richteri venom protein 2, D to A change at position 69 (Solr2<sup>A69</sup>; GenBank Accession MT150128). The predicted open reading frame for Solh2 and Solh2<sup>Tr97</sup> revealed sequences unique to hybrid ants, with Solh2<sup>Tr97</sup>an alternatively spliced form. A third unique sequence, Solr2<sup>A69</sup>, is likely the correct sequence for Solr2, which appears to have been published previously with a sequencing error (GenBank Accession P35776).</p></div>","PeriodicalId":37124,"journal":{"name":"Toxicon: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.toxcx.2021.100065","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38929845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Chronic health effects and cost of snakebite 蛇咬伤对慢性健康的影响和成本
Toxicon: X Pub Date : 2021-07-01 DOI: 10.1016/j.toxcx.2021.100074
Anuradhani Kasturiratne , David G. Lalloo , H. Janaka de Silva
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引用次数: 25
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