keyword
MENU ▼
Read by QxMD icon Read
search

Trypanosomiasis

keyword
https://www.readbyqxmd.com/read/29137663/patent-landscape-of-neglected-tropical-diseases-an-analysis-of-worldwide-patent-families
#1
Folahanmi Tomiwa Akinsolu, Vitor Nobre de Paiva, Samuel Santos Souza, Orsolya Varga
BACKGROUND: "Neglected Tropical Diseases" (NTDs) affect millions of people in Africa, Asia and South America. The two primary ways of strategic interventions are "preventive chemotherapy and transmission control" (PCT), and "innovative and intensified disease management" (IDM). In the last 5 years, phenomenal progress has been achieved. However, it is crucial to intensify research effort into NTDs, because of the emerging drug resistance. According to the World Health Organization (WHO), the term NTDs covers 17 diseases, namely buruli ulcer, Chagas disease, dengue, dracunculiasis, echinococcosis, trematodiasis, human African trypanosomiasis, leishmaniasis, leprosy, lymphatic filariasis, onchocerciasis, rabies, schistosomiasis, soil-transmitted helminthes, taeniasis, trachoma, and yaws...
November 14, 2017: Globalization and Health
https://www.readbyqxmd.com/read/29136773/the-potential-use-of-melatonin-to-treat-protozoan-parasitic-infections-a-review
#2
REVIEW
Ahmad Daryani, Mahbobeh Montazeri, Abdol Satar Pagheh, Mehdi Sharif, Shahabeddin Sarvi, Azam Hosseinzadeh, Russel J Reiter, Ramtin Hadighi, Mohammad Taghi Joghataei, Habib Ghaznavi, Saeed Mehrzadi
Melatonin (N-acetyl-5-methoxytryptamine) is a circadian hormone produced in vertebrates by the pineal gland and other organs. Melatonin is believed to influence immune cells leading to modulation of the proliferative response of stimulated lymphocytes as well as cytokine production. Due to the antioxidant and immunomodulatory effects of melatonin, it is suggested that this molecule could be a therapeutic alternative agent to fight bacterial, viral, and parasitic infections by a variety of mechanisms. Herein, we review the effects of melatonin on the cell biology of protozoan parasites and host's immune response...
November 7, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29131822/impact-of-the-ebola-outbreak-on-trypanosoma-brucei-gambiense-infection-medical-activities-in-coastal-guinea-2014-2015-a-retrospective-analysis-from-the-guinean-national-human-african-trypanosomiasis-control-program
#3
Mariame Camara, Eric Ouattara, Alexandre Duvignaud, René Migliani, Oumou Camara, Mamadou Leno, Philippe Solano, Bruno Bucheton, Mamadou Camara, Denis Malvy
BACKGROUND: The 2014-2015 Ebola outbreak massively hit Guinea. The coastal districts of Boffa, Dubreka and Forecariah, three major foci of Human African Trypanosomiasis (HAT), were particularly affected. We aimed to assess the impact of this epidemic on sleeping sickness screening and caring activities. METHODOLOGY/PRINCIPAL FINDINGS: We used preexisting data from the Guinean sleeping sickness control program, collected between 2012 and 2015. We described monthly: the number of persons (i) screened actively; (ii) or passively; (iii) treated for HAT; (iv) attending post-treatment follow-up visits...
November 13, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29125744/design-and-synthesis-of-brain-penetrant-trypanocidal-n-myristoyltransferase-inhibitors
#4
Tracy Bayliss, David A Robinson, Victoria C Smith, Stephen Brand, Stuart P McElroy, Leah S Torrie, Chido Mpamhanga, Suzanne Norval, Laste Stojanovski, Ruth Brenk, Julie A Frearson, Kevin D Read, Ian H Gilbert, Paul G Wyatt
N-Myristoyltransferase (NMT) represents a promising drug target within the parasitic protozoa Trpanosoma brucei (T. brucei), the causative agent for human African trypanosomiasis (HAT) or sleeping sickness. We have previously validated T. brucei NMT as a promising druggable target for the treatment of HAT in both stage 1 and 2 of the disease. We report on the use of the previously reported DDD85646 (1) as a start point for the design of a class of potent, brain penetrant inhibitors of T. brucei NMT.
November 10, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29118740/response-to-trypanosoma-cruzi-by-human-blood-cells-enriched-with-dentritic-cells-is-controlled-by-cyclooxygenase-2-pathway
#5
Sandra C H Lonien, Aparecida D Malvezi, Helena T Suzukawa, Lucy M Yamauchi, Sueli F Yamada-Ogatta, Luiz V Rizzo, Juliano Bordignon, Phileno Pinge-Filho
Chagas disease (Cd) or American human trypanosomiasis is caused by Trypanosoma cruzi and affects ~7 million people, mostly in Latin America. The infective trypomastigote forms of the parasite can invade several human blood cell populations, including monocytes and dendritic cells (DC). Although these cells display a wide functional diversity, their interactions with T. cruzi via cyclooxygenase (COX) and cyclic adenosine monophosphate (cAMP) dependent pathways have not been analyzed. To exploiting this mechanism, DC-enriched peripheral human blood mononuclear cell populations (DC-PBMC) were used as our model...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29114487/prevalence-of-trypanosome-infection-in-tsetse-flies-from-oji-river-and-emene-axis-of-enugu-state-nigeria-a-preliminary-report
#6
Kenechukwu Chibuike Onyekwelu, Fidelis Ebele Ejezie, Anthonius Anayochukwu Eze, Joy Ebele Ikekpeazu, Richard Chukwunonye Ezeh, Godknows Chizurumoke Edeh
Introduction: Trypanosomes are protozoan parasites of vertebrates transmitted by blood-sucking tsetse fly. Trypanosomes remain a constant threat to the lives of humans and animals throughout large regions of Africa. Aims and Objectives: This study investigated the presence, prevalence, and species of trypanosome parasite in tsetse flies caught in two areas of no previous documented history of trypanosome infection. Materials and Methods: For this purpose, 63 and 77 nonterenal tsetse flies were collected from Oji River and Emene areas of Enugu State Nigeria, respectively...
July 2017: Tropical Parasitology
https://www.readbyqxmd.com/read/29113731/oral-fexinidazole-for-late-stage-african-trypanosoma-brucei-gambiense-trypanosomiasis-a-pivotal-multicentre-randomised-non-inferiority-trial
#7
Victor Kande Betu Ku Mesu, Wilfried Mutombo Kalonji, Clélia Bardonneau, Olaf Valverde Mordt, Séverine Blesson, François Simon, Sophie Delhomme, Sonja Bernhard, Willy Kuziena, Jean-Pierre Fina Lubaki, Steven Lumeya Vuvu, Pathou Nganzobo Ngima, Hélène Mahenzi Mbembo, Médard Ilunga, Augustin Kasongo Bonama, Josué Amici Heradi, Jean Louis Lumaliza Solomo, Guylain Mandula, Lewis Kaninda Badibabi, Francis Regongbenga Dama, Papy Kavunga Lukula, Digas Ngolo Tete, Crispin Lumbala, Bruno Scherrer, Nathalie Strub-Wourgaft, Antoine Tarral
BACKGROUND: Few therapeutic options are available to treat late-stage human African trypanosomiasis, a neglected tropical disease caused by Trypanosoma brucei gambiense (g-HAT). The firstline treatment nifurtimox eflornithine combination therapy needs to be administered intravenously in a hospital setting by trained personnel, which is not optimal, given that patients often live in remote areas with few health resources. Therefore, we aimed to assess the safety and efficacy of an oral regimen of fexinidazole (a 2-substituted 5-nitroimidazole with proven trypanocidal activity) versus nifurtimox eflornithine combination therapy in patients with late-stage g-HAT...
November 3, 2017: Lancet
https://www.readbyqxmd.com/read/29110762/apol1-nephrotoxicity-what-does-ion-transport-have-to-do-with-it
#8
REVIEW
Opeyemi A Olabisi, John F Heneghan
Apolipoprotein L1 (APOL1) protein is the human serum factor that protect human beings against Trypanosoma brucei brucei, the cause of trypanosomiasis. Subspecies of T b brucei that cause human sleeping sickness-T b gambiense and T b rhodesiense evolved molecular mechanisms that enabled them to evade killing by APOL1. Sequence changes (termed G1 and G2) in the APOL1 gene that restored its ability to kill T b rhodesiense also increase the risk of developing glomerular diseases and accelerate progression to end-stage kidney disease...
November 2017: Seminars in Nephrology
https://www.readbyqxmd.com/read/29110677/using-meta-quality-to-assess-the-utility-of-volunteered-geographic-information-for-science
#9
Shaun A Langley, Joseph P Messina, Nathan Moore
BACKGROUND: Volunteered geographic information (VGI) has strong potential to be increasingly valuable to scientists in collaboration with non-scientists. The abundance of mobile phones and other wireless forms of communication open up significant opportunities for the public to get involved in scientific research. As these devices and activities become more abundant, questions of uncertainty and error in volunteer data are emerging as critical components for using volunteer-sourced spatial data...
November 6, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29107437/selenium-containing-analogues-of-wc-9-are-extremely-potent-inhibitors-of-trypanosoma-cruzi-proliferation
#10
María N Chao, Melissa Storey, Catherine Li, Maricel G Rodríguez, Florencia Di Salvo, Sergio H Szajnman, Silvia N J Moreno, Roberto Docampo, Juan B Rodriguez
The obligate intracellular parasite, Trypanosoma cruzi is the etiologic agent of Chagas disease or American trypanosomiasis, which is the most prevalent parasitic disease in the Americas. The present chemotherapy to control this illness is still deficient particularly in the chronic stage of the disease. The ergosterol biosynthesis pathway has received much attention as a molecular target for the development of new drugs for Chagas disease. Especially, inhibitors of the enzymatic activity of squalene synthase were shown to be effective compounds on T...
October 16, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/29107420/african-trypanosomiasis-synthesis-sar-enabling-novel-drug-discovery-of-ubiquinol-mimics-for-trypanosome-alternative-oxidase
#11
Ryan A West, Oran G O'Doherty, Trevor Askwith, John Atack, Paul Beswick, Jamie Laverick, Michael Paradowski, Lewis E Pennicott, Srinivasa P S Rao, Gareth Williams, Simon E Ward
African trypanosomiasis is a parasitic disease affecting 5000 humans and millions of livestock animals in sub-Saharan Africa every year. Current treatments are limited, difficult to administer and often toxic causing long term injury or death in many patients. Trypanosome alternative oxidase is a parasite specific enzyme whose inhibition by the natural product ascofuranone (AF) has been shown to be curative in murine models. Until now synthetic methods to AF analogues have been limited, this has restricted both understanding of the key structural features required for binding and also how this chemotype could be developed to an effective therapeutic agent...
December 1, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29100526/serological-tests-for-gambiense-human-african-trypanosomiasis-detect-antibodies-in-cattle
#12
Enock Matovu, Annah Kitibwa, Albert Picado, Sylvain Biéler, Paul R Bessell, Joseph Mathu Ndung'u
BACKGROUND: Serological tests for gambiense human African trypanosomiasis (gHAT) detect antibodies to antigens on the cell surface of bloodstream trypanosomes. As trypanosomes that cause animal African trypanosomiasis (AAT) also express related antigens, we have evaluated two rapid diagnostic tests (RDTs) on cattle in trypanosomiasis endemic and non-endemic regions, to determine whether gHAT serological tests could also be used to screen for AAT. METHODS: Two RDTs, 1G RDT, made with native antigens, and p2G RDT, made with recombinant antigens, were tested on 121 cattle in a trypanosomiasis-free region, and on 312 cattle from a rhodesiense HAT and AAT endemic region...
November 3, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29098491/pastoralists-vulnerability-to-trypanosomiasis-in-maasai-steppe
#13
Happiness J Nnko, Paul S Gwakisa, Anibariki Ngonyoka, Meshack Saigilu, Moses Ole-Neselle, William Kisoka, Calvin Sindato, Anna Estes
Trypanosomiasis is a neglected tropical disease of both livestock and humans. Although pastoral communities of the Maasai Steppe have been able to adapt to trypanosomiasis in the past, their traditional strategies are now constrained by changes in climate and land regimes that affect their ability to move with their herds and continually shape the communities' vulnerability to trypanosomiasis. Despite these constraints, information on communities' vulnerability and adaptive capacity to trypanosomiasis is limited...
November 2, 2017: EcoHealth
https://www.readbyqxmd.com/read/29097642/bovine-trypanosomiasis-in-tsetse-free-pastoral-zone-of-the-far-north-region-cameroon
#14
P F Suh, F Njiokou, A Mamoudou, T M Ahmadou, A Mouhaman, R Garabed
BACKGROUND & OBJECTIVES: The Far-North region of Cameroon has been considered free of tsetse and trypanosomiasis for the past three decades. But recent reports by pastoralists indicate its reappearance in the region. This study was aimed to confirm the existence of cattle trypanosomiasis and determine its prevalence, and to establish pastoralists knowledge and practice (KP) of the disease in Ndiyam Shinwa pastoral zone of Cameroon. METHODS: A total of 118 herds were surveyed for a descriptive, cross-sectional study in Ndiyam Shinwa pastoral zone from May to November 2014...
July 2017: Journal of Vector Borne Diseases
https://www.readbyqxmd.com/read/29092797/gold-nanoparticles-against-parasites-and-insect-vectors
#15
REVIEW
Giovanni Benelli
Nanomaterials are currently considered for many biological, biomedical and environmental purposes, due to their outstanding physical and chemical properties. The synthesis of gold nanoparticles (Au NPs) is of high interest for research in parasitology and entomology, since these nanomaterials showed promising applications, ranging from detection techniques to drug development, against a rather wide range of parasites of public health relevance, as well as on insect vectors. Here, I reviewed current knowledge about the bioactivity of Au NPs on selected insect species of public health relevance, including major mosquito vectors, such as Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus...
October 29, 2017: Acta Tropica
https://www.readbyqxmd.com/read/29091964/interaction-between-the-flagellar-pocket-collar-and-the-hook-complex-via-a-novel-microtubule-binding-protein-in-trypanosoma-brucei
#16
Anna Albisetti, Célia Florimond, Nicolas Landrein, Keni Vidilaseris, Marie Eggenspieler, Johannes Lesigang, Gang Dong, Derrick Roy Robinson, Mélanie Bonhivers
Trypanosoma brucei belongs to a group of unicellular, flagellated parasites that are responsible for human African trypanosomiasis. An essential aspect of parasite pathogenicity is cytoskeleton remodelling, which occurs during the life cycle of the parasite and is accompanied by major changes in morphology and organelle positioning. The flagellum originates from the basal bodies and exits the cell body through the flagellar pocket (FP) but remains attached to the cell body via the flagellum attachment zone (FAZ)...
November 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29091120/detection-and-molecular-characterization-of-trypanosoma-duttonella-vivax-in-dairy-cattle-in-the-state-of-sergipe-northeastern-brazil
#17
Osires Lustosa Eloi Vieira, Lucia Oliveira de Macedo, Marcos Antônio Bezerra Santos, José Augusto Bastos Afonso Silva, Carla Lopes de Mendonça, Maria Aparecida da Gloria Faustino, Carlos Alberto do Nascimento Ramos, Leucio Câmara Alves, Rafael Antonio Nascimento Ramos, Gílcia Aparecida de Carvalho
Trypanosoma (Duttonella) vivax is an important cause of economic losses among feedlot cattle. These losses are related to the morbidity, mortality, reproductive issues and decreased production. It is known that the clinical signs observed in infections by this protozoon are similar to other hemoparasitosis, which difficult the diagnosis. Therefore, the aim of this study was to detect and molecularly characterize an outbreak of trypanosomiasis caused by T. (D.) vivax in dairy cattle in the municipality of São Miguel Aleixo, state of Sergipe, Brazil...
October 30, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/29084172/benzoic-acid-derivatives-with-trypanocidal-activity-enzymatic-analysis-and-molecular-docking-studies-toward-trans-sialidase
#18
Muhammad Kashif, Antonio Moreno-Herrera, Juan Carlos Villalobos-Rocha, Benjamín Nogueda-Torres, Jaime Pérez-Villanueva, Karen Rodríguez-Villar, José Lius Medina-Franco, Peterson de Andrade, Ivone Carvalho, Gildardo Rivera
Chagas, or American trypanosomiasis, remains an important public health problem in developing countries. In the last decade, trans-sialidase has become a pharmacological target for new anti-Chagas drugs. In this work, the aims were to design and find a new series of benzoic acid derivatives as trans-sialidase (TS) inhibitors and anti-trypanosomal agents. Three compounds (14, 18, and 19) sharing a para-aminobenzoic acid moiety showed more potent trypanocidal activity than the commercially available drugs nifurtimox and benznidazole in both strains: the lysis concentration of 50% of the population (LC50) was <0...
October 30, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29078807/relationship-between-trypanosoma-brucei-rhodesiense-genetic-diversity-and-clinical-spectrum-among-sleeping-sickness-patients-in-uganda
#19
Charles D Kato, Claire M Mugasa, Ann Nanteza, Enock Matovu, Vincent P Alibu
OBJECTIVE: Human African trypanosomiasis (HAT) due to Trypanosoma brucei rhodesiense in East and southern Africa is reported to be clinically diverse. We tested the hypothesis that this clinical diversity is associated with a variation in trypanosome genotypes. RESULTS: Trypanosome DNA isolated from HAT patients was genotyped using 7 microsatellite markers directly from blood spotted FTA cards following a whole genome amplification. All markers were polymorphic and identified 17 multi-locus genotypes with 56% of the isolates having replicate genotypes...
October 27, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29077717/a-polymorphism-in-the-haptoglobin-haptoglobin-related-protein-locus-is-associated-with-risk-of-human-sleeping-sickness-within-cameroonian-populations
#20
Elvis Ofon, Harry Noyes, Julius Mulindwa, Hamidou Ilboudo, Martin Simuunza, Vincent Ebo'o, Flobert Njiokou, Mathurin Koffi, Bruno Bucheton, Pythagore Fogue, Christiane Hertz-Fowler, Annette MacLeod, Gustave Simo
BACKGROUND: Human African Trypanosomiasis (HAT) is a neglected disease targeted for elimination as a public health problem by 2020. Elimination requires a better understanding of the epidemiology and clinical evolution of HAT. In addition to the classical clinical evolution of HAT, asymptomatic carriers and spontaneous cure have been reported in West Africa. A genetic component to human susceptibility to HAT has been suggested to explain these newly observed responses to infection. In order to test for genetic associations with infection response, genetic polymorphism in 17 genes were tested (APOL1, IL1B, IL4, IL4R, IL6, IL8, IL12B, IL12RB1, IL10, TNFA, INFG, MIF, HLA-G, HLA-A, HP, HPR and CFH)...
October 27, 2017: PLoS Neglected Tropical Diseases
keyword
keyword
20678
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"