journal
https://read.qxmd.com/read/36965613/infectivity-of-three-mayaro-virus-geographic-isolates-in-human-cell-lines
#1
JOURNAL ARTICLE
Aum R Patel, Melissa Dulcey, Nabil Abid, Melanie N Cash, Jordan Dailey, Marco Salemi, Carla Mavian, Amy Y Vittor
Mayaro virus (MAYV) is an emergent arthropod-borne virus that causes an acute febrile illness accompanied by arthralgia, similar to chikungunya virus. Increasing urbanization of MAYV outbreaks in the Americas has led to concerns for geographic expansion and spillover. Given the potential importance of this pathogen, we sought to fill critical gaps in knowledge regarding MAYV infectivity and geographic variation. This study describes the cytopathogenicity of MAYV in human dermal fibroblasts, human skeletal muscle satellite cells, human embryonic kidney cells (HEK), peripherally derived human macrophages, and Vero cells...
March 23, 2023: Acta Tropica
https://read.qxmd.com/read/36965612/virulent-potential-of-methicillin-resistant-and-methicillin-susceptible-staphylococcus-pseudintermedius-in-dogs
#2
JOURNAL ARTICLE
Gabriela Merker Breyer, Bianca Fagundes Saggin, Silvia de Carli, Maria Eduarda Rocha Jacques da Silva, Mateus Matiuzzi da Costa, Bertram Brenig, Vasco Ariston de Carvalho Azevedo, Marisa Ribeiro de Itapema Cardoso, Franciele Maboni Siqueira
Staphylococcus pseudintermedius is a zoonotic pathogen responsible for several infectious diseases in pet animals, yet its pathogenic potential is not fully understood. Thus, this study aims to unravel the virulence profile of S. pseudintermedius from canine origin. Methicillin-resistant (MRSP) and methicillin-susceptible (MSSP) strains were isolated from different infection sites and their genotypic and phenotypic features were compared to determine the clinical implications of MRSP and MSSP strains. Bacterial identification was performed using MALDI-TOF and 16S-rDNA sequencing...
March 23, 2023: Acta Tropica
https://read.qxmd.com/read/36963599/knowledge-and-practices-about-taeniasis-cysticercosis-complex-within-the-framework-of-the-national-plan-for-its-elimination-in-colombia-2019
#3
JOURNAL ARTICLE
Ramón Gamarra Rueda, Rubiela Angélica Knudson Ospina, Luz Adriana Olaya Másmela, Natalia Gómez López, Ana Isabel Orellano Calambas, Luís Fernando Navarro Díaz, Norman Giovanni Apráez Ippolito, Julián Alfredo Fernández-Niño, Myriam Consuelo López Páez
UNLABELLED: The taeniasis/cysticercosis complex (TCC) belongs to the group of neglected infectious diseases with a multifactorial transmission that includes hosts such as humans and pigs of the parasitic tapeworm (Taenia solium) and environmental factors. This study represents the first phase of the National and Cross-sectoral Plan for TCC Elimination. OBJECTIVES: To obtain data about knowledge and practices in relation to the TCC from knowledge, attitudes, and practices (KAP) surveys applied in two pilot localities for building a baseline of the potential risk factors related to identification, prevention, and control of TCC in Colombia...
March 22, 2023: Acta Tropica
https://read.qxmd.com/read/36963598/estimating-the-intra-puparial-period-of-hydrotaea-spinigera-stein-1910-diptera-muscidae-with-morphological-and-gene-expression-changes
#4
JOURNAL ARTICLE
Shipeng Shao, Gengwang Hu, Liangliang Li, Yi Sheng, Yinghui Wang, Yanan Zhang, Yi Guo, Chengtao Kang, Wang Xu, Jie Chen, Jiangfeng Wang, Yu Wang
Hydrotaea spinigera (Stein, 1910) (Diptera: Muscidae) is a forensically important sarcosaprophagous species widely distributed throughout the Oriental and Australasian regions. At the advanced decomposition stage or the skeletonize stage, the immature stages of H. spinigera, especially the pupae, can still be found in large quantities and could be used as important indicators to estimate the minimum postmortem interval (PMImin ). However, there have been no studies on the intra-puparial period of this species...
March 22, 2023: Acta Tropica
https://read.qxmd.com/read/36963597/evasion-of-the-complement-system-by-leishmania-through-the-uptake-of-c4bbp-a-complement-regulatory-protein-and-probably-by-the-action-of-gp63-on-c4b-molecules-deposited-on-parasite-surface
#5
JOURNAL ARTICLE
Adalberto Alves Pereira-Filho, Daniel Costa Queiroz, Natália Alvim Araújo Saab, Grasielle Caldas D'Ávila Pessoa, Leonardo Barbosa Koerich, Marcos Horácio Pereira, Mauricio Roberto Viana Sant'Anna, Ricardo Nascimento Araújo, Daniella Castanheira Bartholomeu, Nelder Figueiredo Gontijo
The complement system is a primary component of the vertebrate innate immune system, and its activity is harmful to microorganisms and parasites. To evade complement attack, some pathogens, such as viruses, bacteria, and protozoa, can interact with complement regulatory proteins from their hosts. Our research group has described the ability of Leishmania species to bind Factor H from human serum and use it as a tool to evade the complement system. However, there is no description of the interaction of Leishmania with other complement regulatory proteins, such as the C4b-binding protein (C4bBP), a negative regulator of classical and lectins complement system pathways...
March 22, 2023: Acta Tropica
https://read.qxmd.com/read/36948235/a-sero-epidemiological-investigation-of-west-nile-virus-among-patients-without-any-records-of-their-symptoms-from-three-different-hospitals-from-tunisia
#6
JOURNAL ARTICLE
Nadya Nasraoui, Mouna Luisa Ben Moussa, Yosr Ayedi, Maha Mastouri, Abdelhalim Trabelsi, Ali Raies, Roman Wölfel, Mohamed Ben Moussa
West Nile virus is one of the most known arboviruses around the world, along with Dengue virus, Toscana virus, Chikungunya (CHIK). In Tunisia, many epidemics of WNV had occurred in the past. The last one dated from 2018. The aim of our work was to perform a sero-epidemiological investigation on WNV without any records of their symptoms from three different hospitals from Tunisia. Patients without any records of their symptoms of the infection of West Nile Virus (WNV) infection were included in the period from October 2017 to January 2020 from three different Virology departments in the country (the Military Hospital in Tunis, Fattouma Bourguiba Hospital in Monastir and Sahloul Hospital in Sousse)...
March 20, 2023: Acta Tropica
https://read.qxmd.com/read/36948234/genetic-diversity-and-genomic-analysis-of-g3p-6-and-equine-like-g3p-8-in-children-under-five-from-southern-highlands-and-eastern-tanzania
#7
JOURNAL ARTICLE
Joseph J Malakalinga, Gerald Misinzo, George M Msalya, Mariana J Shayo, Rudovick R Kazwala
Rotavirus group A genomic characterization is critical for understanding the mechanisms of rotavirus diversity, such as reassortment events and possible interspecies transmission. However, little is known about the genetic diversity and genomic relationship of the rotavirus group A strains circulating in Tanzania. The genetic and genomic relationship of RVA genotypes was investigated in children under the age of five. A total of 169 faecal samples were collected from under-five with diarrhea in Mbeya, Iringa and Morogoro regions of Tanzania...
March 20, 2023: Acta Tropica
https://read.qxmd.com/read/36948233/acute-toxicity-of-two-insecticides-on-two-species-of-chagas-disease-vectors
#8
JOURNAL ARTICLE
Reyna Vargas-Abasolo, Ana E Gutiérrez-Cabrera, Alex Córdoba-Aguilar, Jose D Rivera
The control of triatomine vectors of Chagas disease is mainly based on the use of pyrethroid insecticides. Because chemical control is the primary method for managing these insects, it is crucial to diversify the range of products utilized to mitigate the risk of resistance development. This study evaluated the toxicity of two insecticides with different modes of action on Triatoma dimidiata Latreille and T. pallidipennis Stal first and third instar nymphs. Our study focused on the effects of two insecticides, buprofezin (a growth regulator) and flunocamid (an anti-feeder), on the mortality rate of triatomine bugs in a laboratory setting...
March 20, 2023: Acta Tropica
https://read.qxmd.com/read/36940858/metabolomic-profiling-of-early-inactive-hepatic-alveolar-and-cystic-echinococcosis
#9
JOURNAL ARTICLE
Zhenzhong Bai, Xiao Ma, Ranran Yan, Wen Lei, Yifan Zhang, Yanming Ren, Shou Liu
Hepatic alveolar echinococcosis (AE) and cystic echinococcosis (CE) are severe helminthic zoonoses and leading causes of parasitic liver damage. They pose a high mortality risk due to invisible clinical signs, especially at the early inactive stage. However, the specific metabolic profiles induced by inactive AE and CE lesions remain largely unclear. Therefore, we used gas chromatography-mass spectrometry-based metabolomic profiling to identify the global metabolic variations in AE and CE patient sera to differentiate between the two diseases and reveal the mechanisms underlying their pathogenesis...
March 18, 2023: Acta Tropica
https://read.qxmd.com/read/36940857/diversity-and-geographical-distribution-of-leishmania-species-and-the-emergence-of-leishmania-leishmania-infantum-and-l-viannia-panamensis-in-central-western-venezuela
#10
JOURNAL ARTICLE
Lourdes A Delgado-Noguera LA, Carlos E Hernández-Pereira, Adriana C Castillo-Castañeda, Luz Helena Patiño, Sergio Castañeda, Giovanny Herrera, Euler Mogollón, Marina Muñoz, Alexander Duran, Doris Loyo, Mirna Pacheco, Luzmir Arena, Glenis Isquiel, Lisbeth Yepez, Beatriz Colmenarez, Mayeli Caviedes, Yamilet Mendez, Sandry Herrera, Juan David Ramírez, Alberto E Paniz-Mondolfi
Transmission of cutaneous leishmaniasis in Venezuela reveals diverse and changing epidemiological landscapes, as well as a spectrum of clinical phenotypes presumed to be linked to a variety of Leishmania species. Central-western Venezuela constitutes one of the highest endemic epicenters in the country, yet updated molecular epidemiological information is still lacking. Therefore, in this study we aimed to characterize the landscape of circulating Leishmania species across central-western Venezuela through the last two decades, performed comparisons of haplotype and nucleotide diversity, and built a geospatial map of parasite species distribution...
March 18, 2023: Acta Tropica
https://read.qxmd.com/read/36940856/maldi-tof-ms-as-a-tick-identification-tool-in-a-tertiary-hospital-in-spain
#11
JOURNAL ARTICLE
Antonio Beltran, Ana M Palomar, Maria Ercibengoa, Pilar Goñi, Rafael Benito, Beatriz Lopez, Jose Antonio Oteo
In Spain, as in other countries, the spectrum of tick-borne diseases and their number have increased in recent years. The tick identification, at species level, can be a challenging outside research centers although this information is very usufull for decisions making. The performance of matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) in tick identification of specimens collected from patients have been seldomly reported. The aim of the present study was to desing a protein-extraction protocol and build a tick-legs reference spectra...
March 18, 2023: Acta Tropica
https://read.qxmd.com/read/36940855/eugenol-and-menthol-synergize-the-toxicity-of-permethrin-in-the-blood-sucking-bug-triatoma-infestans
#12
JOURNAL ARTICLE
M M Noel Reynoso, Eduardo N Zerba, Raúl A Alzogaray
The blood-sucking bug, Triatoma infestans, is one of the main vectors of Chagas disease in America. It is usually controlled with pyrethroids, but the emergence of resistance to these insecticides creates the need to look for alternative products. Eugenol, menthol and menthyl acetate are botanical monoterpenes, which produce lethal and sublethal effects on insects. The purpose of this work was to determine what type of toxicological interactions occur when binary mixtures, formed by the pyrethroid permethrin and sublehtal doses of eugenol, menthol or menthyl acetate, are applied to T...
March 18, 2023: Acta Tropica
https://read.qxmd.com/read/36935051/environmental-and-socio-economic-determinants-of-the-occurrence-of-malaria-clusters-in-colombia
#13
JOURNAL ARTICLE
Johanna Tapias Rivera, Juan David Gutiérrez
This study identifies the environmental and socio-economic determinants of clusters of high malaria incidence in Colombia during the period of 2008-2019. The malaria cases were obtained from the National System of Surveillance in Public Health, with 798,897 cases reported in the 986 Colombian municipalities evaluated during the study period. Spatial autocorrelation of incidence was examined with global and local indices. Clusters were identified in the Amazon, Pacific, and Uraba-Bajo Cauca-Alto Sinú regions...
March 17, 2023: Acta Tropica
https://read.qxmd.com/read/36935050/extracellular-vesicles-in-the-context-of-chagas-disease-a-systematic-review
#14
REVIEW
Emãnuella Melgaço Garcez, Nélio Gomes, Aline Silva Moraes, Robert Pogue, Rosa Harumi Uenishi, Mariana Hecht, Juliana Lott Carvalho
Extracellular vesicle (EVs) traffic is considered an important cellular communication process between cells that can be part of a single organism or belong to different living beings. The relevance of EV-mediated cellular communication is increasingly studied and appreciated, especially in relation to pathological conditions, including parasitic disorders, in which the EV release and uptake processes have been documented. In the context of Chagas Disease (CD), EVs have been explored, however, current data have not been systematically revised in order to provide an overview of the published literature and the main results obtained thus far...
March 17, 2023: Acta Tropica
https://read.qxmd.com/read/36931336/proteomic-and-functional-analyses-of-lachesis-acrochorda-snake-venom-from-the-valle-del-cauca-department-of-colombia
#15
JOURNAL ARTICLE
Alejandro Montoya-Gómez, Daniel Osorno-Valencia, Mónica Gómez-Díaz, Wilmar Bolívar-García, Eliécer Jiménez-Charris
Lachesis acrochorda envenomation has a lethality rate of approximately 90%. Despite its high lethality, little is known about its local and systemic effects and its relationship with its protein content. Thus, to increase knowledge of L. acrochorda snake venom from the Southwestern ecoregion of Colombia, we developed a proteomic analysis using a "bottom-up shotgun proteomic profiling" approach. Besides, we evaluated toxinological properties and compared the effects with the Bothrops asper snake venom activities...
March 15, 2023: Acta Tropica
https://read.qxmd.com/read/36931335/mannose-facilitates-trichinella-spiralis-expulsion-from-the-gut-and-alleviates-inflammation-of-intestines-and-muscles-in-mice
#16
JOURNAL ARTICLE
Hui Nan Hao, Qi Qi Lu, Zhen Wang, Yang Li Li, Shao Rong Long, Ruo Dan Liu, Jing Cui, Zhong Quan Wang
Trichinellosis is a major zoonotic parasitosis which is a vital risk to meat food safety. It is requisite to exploit new strategy to interdict food animal Trichinella infection and to obliterate Trichinella from food animals to ensure meat safety. Mannose is an oligosaccharide that specifically binds to the carbohydrate-recognition domain of C-type lectin; it has many physiological functions including reliving inflammation and regulating immune reaction. The purpose of this study was to investigate the suppressive role of mannose on T...
March 15, 2023: Acta Tropica
https://read.qxmd.com/read/36921748/therapeutic-efficacy-of-albendazole-and-berberine-loaded-on-bovine-serum-albumin-nanoparticles-on-intestinal-and-muscular-phases-of-experimental-trichinellosis
#17
JOURNAL ARTICLE
Eman S El-Wakil, Gehan A M Khodear, Heba Essam Sedky Ahmed, Gihane Ibrahim Khalil Ibrahim, Fatma Hegab, Sarah M Abdo
There has been no treatment for trichinellosis until now. Therefore, this work targeted to investigating the efficacy of albendazole and berberine alone and loaded on bovine serum albumin (BSA) nanoparticles against intestinal and muscular phases of trichinellosis in mice. Mice were divided into nine different groups: negative control, positive control, blank nanoparticle, albendazole, berberine, a combination of albendazole and berberine, albendazole-loaded nanoparticle, berberine-loaded nanoparticle and combination of albendazole and berberine-loaded nanoparticle...
March 13, 2023: Acta Tropica
https://read.qxmd.com/read/36907291/systematic-review-of-applied-mathematical-models-for-the-control-of-schistosoma-japonicum
#18
REVIEW
Callum Lowe, Zohre Ahmadabadi, Darren Gray, Matthew Kelly, Donald P McManus, Gail Williams
BACKGROUND: Schistosoma japonicum remains endemic in China and the Philippines. Substantial progress has been made in the control of Japonicum in both China and the Philippines. China is reaching elimination thanks to a concerted effort of control strategies. Mathematical modelling has been a key tool in the design of control strategies, in place of expensive randomised-controlled trials. We conducted a systematic review to investigate mathematical models of Japonicum control strategies in China and the Philippines...
March 11, 2023: Acta Tropica
https://read.qxmd.com/read/36907290/identification-of-three-members-of-the-multidomain-adhesion-ccp-family-in-babesia-gibsoni
#19
JOURNAL ARTICLE
Hang Li, Shengwei Ji, Eloiza May Galon, Iqra Zafar, Zhuowei Ma, Thom Do, Moaz M Amer, Yihong Ma, Junya Yamagishi, Mingming Liu, Xuenan Xuan
Babesia gibsoni is an intraerythrocytic apicomplexan parasite transmitted by Haemaphysalis longicornis and causes canine babesiosis. Within the tick, the Babesia parasite undergoes sexual conjugation and the sporogony process of its life cycle. To control B. gibsoni infection, prompt and effective treatment of acute infections and curing chronic carriers are urgently needed. Gene disruption of Plasmodium CCps resulted in blocking the transition of sporozoites from the mosquito midgut to the salivary glands, showing that these proteins are potential targets for the development of a transmission-blocking vaccine...
March 11, 2023: Acta Tropica
https://read.qxmd.com/read/36907292/first-report-of-natural-wolbachia-infections-in-mosquitoes-from-cuba
#20
JOURNAL ARTICLE
Armando Ruiz, Gladys Gutiérrez-Bugallo, Rosmari Rodríguez-Roche, Lissette Pérez, Raúl González-Broche, Luis A Piedra, Liss C Martínez, Zulema Menéndez, Anubis Vega-Rúa, Juan A Bisset
Mosquitoes are extensively responsible for the transmission of pathogens. Novel strategies using Wolbachia could transform that scenario, since these bacteria manipulate mosquito reproduction, and can confer a pathogen transmission-blocking phenotype in culicids. Here, we screened the Wolbachia surface protein region by PCR in eight Cuban mosquito species. We confirmed the natural infections by sequencing and assessed the phylogenetic relationships among the Wolbachia strains detected. We identified four Wolbachia hosts: Aedes albopictus, Culex quinquefasciatus, Mansonia titillans, and Aedes mediovittatus (first report worldwide)...
March 10, 2023: Acta Tropica
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