52 Works

Data from: Genetic mapping identifies a major locus spanning P450 clusters associated with pyrethroid resistance in kdr-free Anopheles arabiensis from Chad

Claudia Witzig, Matthew Parry, John C. Morgan, Helen Irving, Andrew Steven, Nelson Cuamba, Clement Kerah-Hinzoumbé, Hilary Ranson & Charles S. Wondji
Prevention of malaria transmission throughout much of Africa is dependent on bednets that are impregnated with pyrethroid insecticides. Anopheles arabiensis is the major malaria vector in Chad and efforts to control this vector are threatened by the emergence of pyrethroid resistance. WHO bioassays revealed that An. arabiensis from Ndjamena is resistant to pyrethroids and dichlorodiphenyltrichloroethane (DDT) but fully susceptible to carbamates and organophosphates. No 1014F or 1014S kdr alleles were detected in this population. To...

Data from: Positional cloning of rp2 QTL associates the P450 genes CYP6Z1, CYP6Z3 and CYP6M7 with pyrethroid resistance in the malaria vector Anopheles funestus

Helen Irving, Jacob M. Riveron, Sulaiman S. Ibrahim, Neil F. Lobo & Charles S. Wondji
Pyrethroid resistance in Anopheles funestus is threatening malaria control in Africa. Elucidation of underlying resistance mechanisms is crucial to improve the success of future control programs. A positional cloning approach was used to identify genes conferring resistance in the uncharacterised rp2 QTL previously detected in this vector using F6 Advanced Intercross Lines (AIL). A 113 kb BAC clone spanning rp2 was identified and sequenced revealing a cluster of fifteen P450 genes and one salivary protein...

Data from: Perceptions of research bronchoscopy in Malawian adults with pulmonary tuberculosis: a cross-sectional study.

Andrew D. McCallum, Deborah Nyirenda, Wezzie Lora, Saye H. Khoo, Derek J. Sloan, Henry C. Mwandumba, Nicola Desmond & Geraint R. Davies
Bronchoscopy is an established research tool in Malawi, enabling collection of pulmonary samples for immunological, pharmacological, and microbiological studies. It is, however, an invasive clinical procedure that offers no direct benefit to volunteering participants when used in a research capacity alone, and thus informed consent is essential. This study aimed to explore TB patients’ understanding of research bronchoscopy, what would motivate them to participate in research bronchoscopy, and their concerns, in order to inform consenting...

Vector bionomics and vectorial capacity as emergent properties of mosquito behaviors and ecology

Sean Wu, Penny Hancock, Arnaud Le Menach, Tanya Russell, Thomas Burkot, , Derek Cummings, Kelly Compton, Daniel Citron, John Marshall, Biyonka Liang, Catherine Moyes, Qian Zhang, David Smith, Samson Kiware, Anne Wilson, Thomas Scott, John Henry, Steven Lindsay, Amit Verma & Hector Sanchez C.
Mosquitoes are important vectors for pathogens that infect humans and other vertebrate animals. Some aspects of adult mosquito behavior and mosquito ecology play an important role in determining the capacity of vector populations to transmit pathogens. Here, we re-examine factors affecting the transmission of pathogens by mosquitoes using a new approach. Unlike most previous models, this framework considers the behavioral states and state transitions of adult mosquitoes through a sequence of activity bouts. We developed...

Anopheles stephensi occurrence data 1985 - 2019

Marianne Sinka, Samuel Pironon, Nicola Massey, Joshua Longbottom, Janet Hemingway, Catherine Moyes & Katherine Willis
In 2012, an unusual outbreak of malaria occurred in Djibouti City followed by increasingly severe annual outbreaks. Investigations revealed the presence of an Asian mosquito species; Anopheles stephensi, which thrives in urban environments. Anopheles stephensi has since been identified in Ethiopia and Sudan. By combining data for An. stephensi across its full range (Asia, Arabian Peninsula, Horn of Africa) with spatial models that identify the species’ preferred habitat, we provide evidence-based maps predicting the possible...

Additional file 1 of Participatory development of practical, affordable, insecticide-treated mosquito proofing for a range of housing designs in rural southern Tanzania

Rogath Msoffe, Matilda Hewitt, John P. Masalu, Marcelina Finda, Deogratius R. Kavishe, Fredros O. Okumu, Emmanuel A. Mpolya, Emmanuel W. Kaindoa & Gerry F. Killeen
Additional file 1. An Excel® spreadsheet file containing all three data tables that were collected and analysed in this study, anonymized by removing all variables containing information that could be used to identify individuals, households or their houses.

Additional file 2 of mTORC1-c-Myc pathway rewires methionine metabolism for HCC progression through suppressing SIRT4 mediated ADP ribosylation of MAT2A

Liang Zhao, Huizhao Su, Xiaomeng Liu, Hongquan Wang, Yukuan Feng, Yan Wang, Haiqiang Chen, Luo Dai, Shihui Lai, Siqi Xu, Chong Li, Jihui Hao & Bo Tang
Additional file 2: Table S1. Detected gene levels upon methionine restriction in livers of HCC mouce models.

Identification of a novel circular RNA circZNF652/miR-486-5p/SERPINE1 signaling cascade that regulates cancer aggressiveness in glioblastoma (GBM)

Liang Liu, Shan Xiao, Yan Wang, Zifeng Zhu, Yiyao Cao, Sen Yang, Rongkang Mai & Yong Zheng
Circular RNAs (circRNAs) are closely associated with cancer development in glioblastoma (GBM), and this study aims to explore the molecular mechanisms of a novel circular RNA circZNF652 in regulating GBM aggressiveness. The present study found that CircZNF652 and SERPINE1 were upregulated, while miR-486-5p was downregulated in GBM tissues and cell lines, and GBM patients with high expression of CircZNF652 and SERPINE1, and patients with low expression of miR-486-5p tended to have a worse prognosis. Further...

Data from: Plasmodium vivax diversity and population structure across four continents

Cristian Koepfli, Priscila T. Rodrigues, Tiago Antao, Pamela Orjuela-Sánchez, Peter Van Den Eede, Dionicia Gamboa, Nguyen Van Hong, Jorge Bendezu, Annette Erhart, Céline Barnadas, Arsène Ratsimbasoa, Didier Menard, Carlo Severini, Michela Menegon, Baki Y. M. Nour, Nadira Karunaweera, Ivo Mueller, Marcelo U. Ferreira, Ingrid Felger & Bakri Y. M. Nour
Plasmodium vivax is the geographically most widespread human malaria parasite. To analyze patterns of microsatellite diversity and population structure across countries of different transmission intensity, genotyping data from 11 microsatellite markers was either generated or compiled from 841 isolates from four continents collected in 1999–2008. Diversity was highest in South-East Asia (mean allelic richness 10.0–12.8), intermediate in the South Pacific (8.1–9.9) Madagascar and Sudan (7.9–8.4), and lowest in South America and Central Asia (5.5–7.2). A...

Data from: The impact of pyrethroid resistance on the efficacy and effectiveness of bednets for malaria control in Africa

Thomas S Churcher, Natalie Lissenden, Jamie T. Griffin, Eve Worrall & Hilary Ranson
Long lasting pyrethroid treated bednets are the most important tool for preventing malaria. Pyrethroid resistant Anopheline mosquitoes are now ubiquitous in Africa though the public health impact remains unclear, impeding the deployment of more expensive nets. Meta-analyses of bioassay studies and experimental hut trials are used to characterise how pyrethroid resistance changes the efficacy of standard bednets, and those containing the synergist piperonyl butoxide (PBO), and assess its impact on malaria control. New bednets provide...

Data from: A low technology emanator treated with the volatile pyrethroid transfluthrin confers long term protection against outdoor biting vectors of lymphatic filariasis, arboviruses and malaria

Sheila B. Ogoma, Arnold S. Mmbando, Johnson K. Swai, Sebastian Horstmann, David Malone, Gerry F. Killeen & Arnold S. Mmando
Background. The vapor phase of the volatile pyrethroid transfluthrin incapacitates mosquitoes and prevents them from feeding. Although existing emanator products for delivering volatile pyrethroids protect against outdoor mosquito bites, they are too short-lived to be practical or affordable for routine use in low-income settings. New transfluthrin emanators, comprised simply of treated hessian fabric strips, have recently proven highly protective against outdoor-biting vectors of lymphatic filariasis, arboviruses and malaria, but their full protective lifespan, minimum dose...

Data from: Low coverage genomic data resolve the population divergence and gene flow history of an Australian rain forest fig wasp

Graham Stone, Lisa Cooper, Lynsey Bunnefeld, Jack Hearn, James Cook & Konrad Lohse
Population divergence and gene flow are key processes in evolution and ecology. Model-based analysis of genome-wide datasets allows discrimination between alternative scenarios for these processes even in non-model taxa. We used two complementary approaches (one based on the blockwise site frequency spectrum (bSFS), the second on the Pairwise Sequentially Markovian Coalescent (PSMC)) to infer the divergence history of a fig wasp, Pleistodontes nigriventris. Pleistodontes nigriventris and its fig tree mutualist Ficus watkinsiana are restricted to...

Comparative evaluation of ten lateral flow immunoassays to detect SARS-CoV-2 antibodies

Gala Garrod, Sophie Owen, Kenneth Baillie, Lisa Baldwin, Lottie Brown, Rachel Byrne, Ana Cubas-Atienzar, Luis Cuevas, Alice Fraser, Thomas Fletcher, Lynsey Goodwin, Grant Kay, Konstantina Kontogianni, Jenifer Mason, Peter Openshaw, Stefanie Menzies, Shona Moore, Malcolm Semple, Joseph Taylor, Lance Turtle, Christopher Williams & Emily Adams
Background: Rapid mobilisation from industry and academia following the outbreak of the novel coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), led to the development and availability of SARS-CoV-2 lateral flow immunoassays (LFAs). High-quality LFAs are urgently needed at the point of care to add to currently available diagnostic tools. In this study, we provide evaluation data for ten LFAs suitable for use at the point of care. Methods: COVID-19 positive patients (N=45), confirmed by...

Anopheles stephensi mosquitoes as vectors of Plasmodium vivax and falciparum, Horn of Africa, 2019

Fitsum G. Tadesse, Temesgen Ashine, Hiwot Teka, Endashaw Esayas, Louisa A. Messenger, Wakweya Chali, Lisette Meerstein-Kessel, Thomas Walker, Sinknesh Wolde Behaksra, Kjerstin Lanke, Roel Heutink, Claire L. Jeffries, Daniel Abebe Mekonnen, Elifaged Hailemeskel, Surafel K. Tebeje, Temesgen Tafesse, Abrham Gashaw, Tizita Tsegaye, Tadele Emiru, Kigozi Simon, Eyuel Asemahegn Bogale, Gedeon Yohannes, Soriya Kedir, Girma Shumie, Senya Asfer Sabir … & Teun Bousema
An. stephensi, an efficient malaria vector in parts of Asia and Africa, was observed in 75.3% of water sources surveyed, and contributed to 80.9% of wild-caught Anopheles mosquitoes in Awash Sebat Kilo, Ethiopia. High susceptibility of these mosquitoes to Plasmodium falciparum and vivax infection presents a challenge for malaria control in the Horn of Africa. This study was conducted in Awash Sebat Kilo, Ethiopia, an area of perennial malaria transmission, from April to September 2019....

Gene-drive suppression of mosquito populations in large cages as a bridge between lab and field

Andrew Hammond, Paola Pollegioni, Tania Persampieri, Ace North, Roxana Minuz, Alessandro Trusso, Alessandro Bucci, Kyros Kyrou, Ioanna Morianou, Alekos Simoni, Tony Nolan, Ruth Müller & Andrea Crisanti
CRISPR-based gene-drives targeting the gene doublesex in the malaria vector Anopheles gambiae effectively suppressed the reproductive capability of mosquito populations reared in small laboratory cages. To bridge the gap between laboratory and the field, this gene-drive technology must be challenged with vector ecology. Here we report the suppressive activity of the gene-drive in age-structured An. gambiae populations in large indoor cages that permit complex feeding and reproductive behaviours. The gene-drive element spreads rapidly through the...

Spatial targeting of Screening + Eave tubes (SET), a house-based malaria control intervention, in Côte d’Ivoire: A geostatistical modelling study

Tiago Canelas, Edward Thomsen, Daniel McDermott, Eleanore Sternberg, Matthew B. Thomas & Eve Worrall
New malaria control tools and tailoring interventions to local contexts are needed to reduce the malaria burden and meet global goals. The housing modification, screening plus a targeted house-based insecticide delivery system called the In2Care® Eave Tubes, has been shown to reduce clinical malaria in a large cluster randomised controlled trial. However, the widescale suitability of this approach is unknown. We aimed to predict household suitability and define the most appropriate locations for ground-truthing where...

Additional file 2 of mTORC1-c-Myc pathway rewires methionine metabolism for HCC progression through suppressing SIRT4 mediated ADP ribosylation of MAT2A

Liang Zhao, Huizhao Su, Xiaomeng Liu, Hongquan Wang, Yukuan Feng, Yan Wang, Haiqiang Chen, Luo Dai, Shihui Lai, Siqi Xu, Chong Li, Jihui Hao & Bo Tang
Additional file 2: Table S1. Detected gene levels upon methionine restriction in livers of HCC mouce models.

Inefficient integration during multiple facial processing in pre-morbid and early phases of psychosis

TianHong Zhang, YingYu Yang, LiHua Xu, XiaoChen Tang, YeGang Hu, Xin Xiong, YanYan Wei, HuiRu Cui, YingYing Tang, HaiChun Liu, Tao Chen, Zhi Liu, Li Hui, ChunBo Li, XiaoLi Guo & JiJun Wang
We used eye-tracking to evaluate multiple facial context processing and event-related potential (ERP) to evaluate multiple facial recognition in individuals at clinical high risk (CHR) for psychosis. In total, 173 subjects (83 CHRs and 90 healthy controls [HCs]) were included and their emotion perception performances were accessed. A total of 40 CHRs and 40 well-matched HCs completed an eye-tracking task where they viewed pictures depicting a person in the foreground, presented as context-free, context-compatible, and...

lipidomics raw data for CaV2.3

Xia Yao, Yan Wang, Zhifei Wang, Xiao Fan, Di Wu, Jian Huang, Alexander Mueller, Sarah Gao, Miaohui Hu, Carol V. Robinson, Yong Yu, Shuai Gao & Nieng Yan
ZIP archive containing raw LC-MS data of CaV2.3

Additional file 1 of Expanding known viral diversity in plants: virome of 161 species alongside an ancient canal

Shixing Yang, Qingqing Mao, Yan Wang, Jingxian He, Jie Yang, Xu Chen, Yuqing Xiao, Yumin He, Min Zhao, Juan Lu, Zijun Yang, Ziyuan Dai, Qi Liu, Yuxin Yao, Xiang Lu, Hong Li, Rui Zhou, Jian Zeng, Wang Li, Chenglin Zhou, Xiaochun Wang, Quan Shen, Hui Xu, Xutao Deng, Eric Delwart … & Wen Zhang
Additional file 1. Table S1: Plant species and library information.

Data from: Evidence for a discrete evolutionary lineage within Equatorial Guinea suggests that the tsetse fly Glossina palpalis palpalis exists as a species complex

Naomi Dyer, Andreia Furtado, Jorge Cano, Filipa Ferreira, M. Odete Afonso, Nicolas Ndong-Mabale, Pedro Ndong-Asumu, Sonia Centeno-Lima, Agustín Benito, David Weetman, Martin Donnelly & Joao Pinto
Tsetse flies of the palpalis group are major vectors of Human African Trypanosomiasis in Africa. Accurate knowledge of species identity is essential for vector control. Here we combine ribosomal internal transcribed spacer 1 (ITS1), mitochondrial Cytochrome Oxidase 1 (COI) and microsatellites to determine the population structure and phylogenetic relations of G. p. palpalis in Equatorial Guinea. COI sequence data suggest that G. p. palpalis in Equatorial Guinea are a distinct subspecies from previously described G....

Data from: Medically important differences in snake venom composition are dictated by distinct postgenomic mechanisms

Nicholas R. Casewell, Simon C. Wagstaff, Wolfgang Wüster, Darren A. N. Cook, Fiona M. S. Bolton, Sarah I. King, Davinia Pla, Libia Sanz, Juan J. Calvete & Robert A. Harrison
Variation in venom composition is a ubiquitous phenomenon in snakes and occurs both interspecifically and intraspecifically. Venom variation can have severe outcomes for snakebite victims by rendering the specific antibodies found in antivenoms ineffective against heterologous toxins found in different venoms. The rapid evolutionary expansion of different toxin-encoding gene families in different snake lineages is widely perceived as the main cause of venom variation. However, this view is simplistic and disregards the understudied influence that...

Data from: Chronic household air pollution exposure is associated with impaired alveolar macrophage function in Malawian non-smokers

Jamie Rylance, Chikondi Chimpini, Sean Semple, David G. Russell, Malcolm J. Jackson, Robert S. Heyderman & Stephen B. Gordon
Background: Household air pollution in low income countries is an important cause of mortality from respiratory infection. We hypothesised that chronic smoke exposure is detrimental to alveolar macrophage function, causing failure of innate immunity. We report the relationship between macrophage function and prior smoke exposure in healthy Malawians. Methods: Healthy subjects exposed daily to cooking smoke at home volunteered for bronchoalveolar lavage. Alveolar macrophage particulate content was measured as a known correlate of smoke exposure....

Data from: Computer-aided X-ray screening for tuberculosis and HIV testing among adults with cough in Malawi (the PROSPECT study): a randomized trial and cost-effectiveness analysis

Peter MacPherson
Suboptimal tuberculosis (TB) diagnostics and HIV contribute to the high global burden of TB. We investigated costs and yield from systematic HIV-TB screening, including computer-aided digital chest X-ray (DCXR-CAD). Suboptimal tuberculosis (TB) diagnostics and HIV contribute to the high global burden of TB. We investigated costs and yield from systematic HIV-TB screening, including computer-aided digital chest X-ray (DCXR-CAD). In this open, three-arm randomised trial, adults (≥18 years) with cough attending acute primary services in Malawi...

Additional file 1 of Transcriptome profiling of lung immune responses potentially related to acute respiratory distress syndrome in forest musk deer

Jie Tang, Lijuan Suo, Feiran Li, Kun Bian, Chao Yang & Yan Wang
Additional file 1.

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Resource Types

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Affiliations

  • Liverpool School of Tropical Medicine
    52
  • Sun Yat-sen University
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  • Tianjin University
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  • Xian Central Hospital
    22
  • Third Hospital of Hebei Medical University
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  • North West Agriculture and Forestry University
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  • Binzhou Medical University
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  • Zhejiang University
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  • Xiamen University
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  • Fudan University Shanghai Cancer Center
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