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https://www.readbyqxmd.com/read/29332765/aquatic-myofascial-release-applied-after-high-intensity-exercise-increases-flexibility-and-decreases-pain
#1
Viviane Ramos Costa Lêdo, Ana Paula Xavier, Cesar Augustus Zocoler de Souza, Susi Mary de Souza Fernandes, Étria Rodrigues, Érico Chagas Caperuto
OBJECTIVES: To investigate aquatic myofascial release (AMR) effects on flexibility and delayed onset muscle soreness, after high intensity exercises. STUDY DESIGN: 15 participants, control (CON) and intervention (INT), 3 moments, pre (Pre), after (Post) and 50 min after (Post 50/Post AMR). 6 exercises, 5 sets, 15 reps at 85% of 1 maximum repetition, followed, or not, by 50 min of AMR. VARIABLES: Heart rate, lactate, rate of perceived exertion, pain and flexibility...
January 2018: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29332591/anti-trypanosoma-cruzi-activity-in-vitro-of-phases-and-isolated-compounds-from-excoecaria-lucida-leaves
#2
Cristiane Franca da Silva, Ania Ochoa Pacheco, Rayane Nogueira Alves, Josean Fechine Tavares, Marcelo Sobral da Silva, Julio Cesar Escalona Arranz
BACKGROUND: Chagas disease is caused by the protozoan parasite Trypanosoma cruzi. This illness is found mainly in 21 Latin American countries and an estimated 8 million people are infected worldwide. The unsatisfactory chemotherapy provokes severe toxicity and resistant strains. Medicinal plants constitute a promising source of new drugs and remedies against all kinds of disorders, mainly infectious diseases arousing interest worldwide. OBJECTIVE: The aim of this study has been the isolation, structural identification and evaluation of the trypanocidal activity of samples present in the Excoecaria lucida Sw...
January 11, 2018: Medicinal Chemistry
https://www.readbyqxmd.com/read/29325909/corrigendum-to-trans-4-methoxy-%C3%AE-nitrostyrene-relaxes-rat-thoracic-aorta-through-a-sgc-dependent-pathway-european-journal-of-pharmacology-807-2017-182-189
#3
Loeste Arruda-Barbosa, Taylena Maria Teófilo, Francisco Chagas Vasconcelos Souza-Neto, Gloria Pinto Duarte, Joyce Karen Lima Vale, Rosivaldo Santos Borges, Pedro Jorge Caldas Magalhães, Saad Lahlou, Saad Lahlou
No abstract text is available yet for this article.
January 15, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29323468/in-silico-studies-designed-to-select-sesquiterpene-lactones-with-potential-antichagasic-activity-from-an-in-house-asteraceae-database
#4
Chonny Herrera-Acevedo, Luciana Scotti, Marcus Tullius Scotti
Chagas disease is an endemic disease caused by Trypanosoma cruzi, which affects more than eight million people, mostly in the Americas. A search for new treatments is necessary to control and eliminate this disease. Sesquiterpene lactones (SLs) are an interesting group of secondary metabolites characteristic of Asteraceae that have presented a wide range of biological activities. From the ChEMBL database, we selected a diverse set of 4,452, 1,635 and 1,322 structures with tested activity against the three T...
January 11, 2018: ChemMedChem
https://www.readbyqxmd.com/read/29323238/human-complement-receptor-type-1-cr1-protein-levels-and-genetic-variants-in-chronic-chagas-disease
#5
Thaisa Lucas Sandri, Kárita Cláudia Freitas Lidani, Fabiana Antunes Andrade, Christian G Meyer, Peter G Kremsner, Iara J de Messias-Reason, Thirumalaisamy P Velavan
Complement is an essential element in both innate and acquired immunity contributing to the immunopathogenesis of many disorders, including Chagas Disease (CD). Human complement receptor 1 (CR1) plays a role in the clearance of complement opsonized molecules and may facilitate the entry of pathogens into host cells. Distinct CR1 exon 29 variants have been found associated with CR1 expression levels, increased susceptibility and pathophysiology of several diseases. In this study, CR1 plasma levels were assessed by ELISA and CR1 variants in exon 29 by sequencing in a Brazilian cohort of 232 chronic CD patients and 104 healthy controls...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29322297/nuclear-distribution-of-the-trypanosoma-cruzi-rna-pol-i-subunit-rpa31-during-growth-and-metacyclogenesis-and-characterization-of-its-nuclear-localization-signal
#6
Israel Canela-Pérez, Imelda López-Villaseñor, Ana María Cevallos, Roberto Hernández
Trypanosoma cruzi is the aetiologic agent of Chagas disease. Our research group studies ribosomal RNA (rRNA) gene transcription and nucleolus dynamics in this species of trypanosomes. RPA31 is an essential subunit of RNA polymerase I (Pol I) whose presence is apparently restricted to trypanosomes. Using fluorescent-tagged versions of this protein (TcRPA31-EGFP), we describe its nuclear distribution during growth and metacyclogenesis. Our findings indicate that TcRPA31-EGFP alters its nuclear presence from concentrated nucleolar localization in exponentially growing epimastigotes to a dispersed granular distribution in the nucleoplasm of stationary epimastigotes and metacyclic trypomastigotes...
January 10, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29320490/the-glutamine-synthetase-of-trypanosoma-cruzi-is-required-for-its-resistance-to-ammonium-accumulation-and-evasion-of-the-parasitophorous-vacuole-during-host-cell-infection
#7
Marcell Crispim, Flávia Silva Damasceno, Agustín Hernández, María Julia Barisón, Ismael Pretto Sauter, Raphael Souza Pavani, Alexandre Santos Moura, Elizabeth Mieko Furusho Pral, Mauro Cortez, Maria Carolina Elias, Ariel Mariano Silber
Trypanosoma cruzi, the etiological agent of Chagas disease, consumes glucose and amino acids depending on the environmental availability of each nutrient during its complex life cycle. For example, amino acids are the major energy and carbon sources in the intracellular stages of the T. cruzi parasite, but their consumption produces an accumulation of NH4+ in the environment, which is toxic. These parasites do not have a functional urea cycle to secrete excess nitrogen as low-toxicity waste. Glutamine synthetase (GS) plays a central role in regulating the carbon/nitrogen balance in the metabolism of most living organisms...
January 10, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29318484/the-exposure-to-water-with-cigarette-residue-changes-the-anti-predator-response-in-female-swiss-albino-mice
#8
Letícia Silva Cardoso, Fernanda Neves Estrela, Thales Quintão Chagas, Wellington Alves Mizael da Silva, Denys Ribeiro de Oliveira Costa, Igor Pereira, Boniek Gontijo Vaz, Aline Sueli de Lima Rodrigues, Guilherme Malafaia
Recent studies have shown that cigarette consumption affects much more than human health. Smoked cigarette butt (SCB) disposal into the environment can bring little-known negative biological consequences to mammals, since it contains many organic and inorganic toxic chemical constituents. Thus, we aim at assessing whether the ingestion of water with leached SCB for 60 days by female Swiss mice changes their defensive behavioral response to potential predators (cats and snakes). We worked with the following groups of animals: control (pollutant-free water), water with environmental concentration of SCB (1...
January 9, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29317702/surveillance-of-vector-borne-pathogens-under-imperfect-detection-lessons-from-chagas-disease-risk-mis-measurement
#9
Thaís Tâmara Castro Minuzzi-Souza, Nadjar Nitz, César Augusto Cuba Cuba, Luciana Hagström, Mariana Machado Hecht, Camila Santana, Marcelle Ribeiro, Tamires Emanuele Vital, Marcelo Santalucia, Monique Knox, Marcos Takashi Obara, Fernando Abad-Franch, Rodrigo Gurgel-Gonçalves
Vector-borne pathogens threaten human health worldwide. Despite their critical role in disease prevention, routine surveillance systems often rely on low-complexity pathogen detection tests of uncertain accuracy. In Chagas disease surveillance, optical microscopy (OM) is routinely used for detecting Trypanosoma cruzi in its vectors. Here, we use replicate T. cruzi detection data and hierarchical site-occupancy models to assess the reliability of OM-based T. cruzi surveillance while explicitly accounting for false-negative and false-positive results...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29315657/dysautonomy-in-different-death-risk-groups-rassi-score-in-patients-with-chagas-heart-disease
#10
Catherine Masiel Merejo Peña, Michel Silva Reis, Basílio de Bragança Pereira, Emília Matos do Nascimento, Roberto Coury Pedrosa
BACKGROUND: It has been difficult to prove that the "catecholamine-induced cardiomyopathy" contributes to the mechanism of sudden cardiac death in Chagas heart disease. Also, it is almost impossible to rule out the possibility that is not involved in the process. More importantly, the vagal-cholinergic pathway in the ventricle plays a direct role in the prevention of the initiation of complex ventricular arrhythmias, including non-sustained ventricular tachycardia, ventricular fibrillation responsible for sudden death...
January 5, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29315305/serological-and-molecular-inquiry-of-chagas-disease-in-an-afro-descendant-settlement-in-mato-grosso-do-sul-state-brazil
#11
Mariana Furquim da Silva Martins, Mariane Barroso Pereira, Juliana de Jesus Guimarães Ferreira, Adriana de Oliveira França, Marlon Cézar Cominetti, Eduardo de Castro Ferreira, Maria Elizabeth Moraes Cavalheiros Dorval, Cláudio Lúcio Rossi, Sílvia de Barros Mazon, Eros Antonio de Almeida, Sandra Cecília Botelho Costa, Gláucia Elisete Barbosa Marcon
Furnas do Dionísio is a Brazilian Afro-descendant settlement in the city of Jaraguari, 21.4 miles from Campo Grande, Mato Grosso do Sul, Brazil. Approximately 96 families live in this quilombola (Maroon) settlement, also known in Brazil as a remnant community of descendants of African slaves. Recent studies found 20% of households were infested by triatomines, 18% of insects captured in the community were infected by Trypanosoma cruzi, and 22.7% of dogs presented T. cruzi antibodies. The low prevalence of Chagas disease observed in humans in Mato Grosso do Sul State is attributed to its arrival via colonist migration and subsequent transplacental transmission...
2018: PloS One
https://www.readbyqxmd.com/read/29313485/biological-and-molecular-characterization-of-trypanosoma-cruzi-strains-from-four-states-of-brazil
#12
Aline Rimoldi Ribeiro, Luciana Lima, Larissa Aguiar de Almeida, Joana Monteiro, Cláudia Jassica Gonçalves Moreno, Juliana Damieli Nascimento, Renato Freitas de Araújo, Fernanda Mello, Luciamáre Perinetti Alves Martins, Márcia Aparecida Silva Graminha, Marta Maria Geraldes Teixeira, Marcelo Sousa Silva, Mário Steindel, João Aristeu da Rosa
Chagas disease affects between six and seven million people. Its etiological agent, Trypanosoma cruzi, is classified into six discrete typing units (DTUs). The biological study of 11 T. cruzi strains presented here included four parameters: growth kinetics, parasitemia curves, rate of macrophage infection, and serology to evaluate IgM, total IgG, IgG1, IgG2a, and IgG3. Sequencing of small subunit of ribosomal RNA (SSU rRNA)was performed and the T. cruzi strains were classified into three DTUs. When their growth in liver infusion tryptose medium was represented in curves, differences among the strains could be noted...
January 8, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29313472/diagnosis-of-trypanosoma-cruzi-infection-status-using-saliva-of-infected-subjects
#13
Nuria Cortes-Serra, Maria-Jesus Pinazo, Leonardo De la Torre, Melina Galizzi, Joaquim Gascon, Juan Manuel Bustamante
Chagas disease has the highest prevalence of any parasitic disease in the Americas, affecting 6-7 million people. Conventional diagnosis requires a well-equipped laboratory with experienced personnel. The development of new diagnostic tools that are easy to use and adapted to the reality of affected populations and health systems is still a significant challenge. The main objective of this study was to measure Trypanosoma cruzi infection status using saliva samples of infected subjects. Blood and saliva samples from 20 T...
January 8, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29311242/vaccine-linked-chemotherapy-improves-benznidazole-efficacy-for-acute-chagas-disease
#14
Kathryn Jones, Leroy Versteeg, Ashish Damania, Brian Keegan, April Kendricks, Jeroen Pollet, Julio Vladimir Cruz-Chan, Fabian Gusovsky, Peter J Hotez, Maria Elena Bottazzi
Chagas disease affects 6-7 million people worldwide, resulting in significant disease burdens and healthcare costs in endemic countries. Chemotherapeutic treatment is restricted to two parasiticidal drugs benznidazole and nifurtimox. Both drugs are highly effective during acute disease, but are only minimally effective during chronic disease and fraught with significant adverse clinical effects. In experimental models, vaccines can be used to induce parasite specific balanced TH1/TH2 immune responses that effectively reduce parasite burdens and associated inflammation while minimizing adverse effects...
January 8, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29309767/time-and-dose-dependenceevaluation-of-nitroheterocyclic-drugs-for-improving-efficacy-following-trypanosoma-cruzi-infection-a-pre-clinical-study
#15
Ana Lia Mazzeti, Lívia de F Diniz, Karolina R Gonçalves, Alvaro F S Nascimento, Pollyanna A F Spósito, Vanessa C F Mosqueira, George L L Machado-Coelho, Isabela Ribeiro, Maria T Bahia
Benznidazole and nifurtimox-treatments regimens currently used in human are supported by very limited experimental data. This study was designed to evaluate the time and dose dependence for efficacy of the most important nitroheterocyclic drugs in use for Chagas disease. In order to evaluate time dependence, Y strain-infected mice received benznidazole for a total of 1, 3, 7, 10, 20, and 40 days. Treatment courses of 3 to 10-day were effective in clearing parasitaemia and suppressing mortality, but parasitological cure was not achieved...
January 5, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29309621/benznidazole-treatment-safety-the-m%C3%A3-decins-sans-fronti%C3%A3-res-experience-in-a-large-cohort-of-bolivian-patients-with-chagas-disease-authors-response
#16
Gilberto Marcelo Sperandio da Silva, Mauro Felippe Felix Mediano, Alejandro Marcel Hasslocher-Moreno, Marcelo Teixeira de Holanda, Andrea Silvestre de Sousa, Luiz Henrique Conde Sangenis, Juan-Carlos Cubides, Roberto Magalhães Saraiva
No abstract text is available yet for this article.
January 4, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29306364/recommendations-for-multimodality-cardiac-imaging-in-patients-with-chagas-disease-a-report-from-the-american-society-of-echocardiography-in-collaboration-with-the-interamerican-association-of-echocardiography-ecosiac-and-the-cardiovascular-imaging-department
#17
Harry Acquatella, Federico M Asch, Marcia M Barbosa, Marcio Barros, Caryn Bern, Joao L Cavalcante, Luis Eduardo Echeverria Correa, Joao Lima, Rachel Marcus, Jose Antonio Marin-Neto, Ricardo Migliore, Jose Milei, Carlos A Morillo, Maria Carmo Pereira Nunes, Marcelo Luiz Campos Vieira, Rodolfo Viotti
No abstract text is available yet for this article.
January 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29305891/efficacy-of-essential-oil-of-syzygium-aromaticum-alone-and-in-combination-with-benznidazole-on-murine-oral-infection-with-trypanosoma-cruzi-iv
#18
Gerson Zanusso Junior, Miyoko Massago, Danielle Kian, Max Jean de Ornelas Toledo
Chagas disease (CD), caused by Trypanosoma cruzi, remains a serious public health problem. One of the causes of the high morbidity and mortality in patients is the lack of an effective drug therapy. Thus, the aim of this study was to evaluate the efficacy of the essential oil of Syzygium aromaticum alone and in combination with benznidazole (BZ) in mice orally inoculated with strain of T. cruzi IV obtained from oral CD outbreak occurred in Western Brazilian Amazonia. All the animals inoculated with metacyclic trypomastigote forms (AM14 strain, BZ resistant), derived from the insect Rhodnius robustus, became infected and there was no difference in the mortality rate between the experimental groups...
January 3, 2018: Experimental Parasitology
https://www.readbyqxmd.com/read/29304849/should-i-stay-or-should-i-go-movement-of-adult-triatoma-sordida-within-the-peridomestic-area-of-a-typical-brazilian-cerrado-rural-household
#19
Edson Santos Dantas, Rodrigo Gurgel-Gonçalves, Daniel Antunes Maciel Villela, Fernando Araújo Monteiro, Rafael Maciel-de-Freitas
BACKGROUND: Chagas disease, or American trypanosomiasis, is an important neglected tropical illness caused by the flagellate protozoan Trypanosoma cruzi, which is primarily transmitted to humans by hematophagous insects of the subfamily Triatominae. Although knowledge on triatomine movement capabilities at the micro-geographical scale is of fundamental importance concerning the development of effective vector control strategies, it remains a poorly understood subject. Furthermore, survival rates and size estimates of natural populations are important topics to consider when evaluating transmission intensity...
January 5, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29304122/comprehensive-analysis-of-three-tyk2-gene-variants-in-the-susceptibility-to-chagas-disease-infection-and-cardiomyopathy
#20
Daniel A Leon Rodriguez, Marialbert Acosta-Herrera, F David Carmona, Nuria Dolade, Sofia Vargas, Luis Eduardo Echeverría, Clara Isabel González, Javier Martin
Tyrosine kinase 2 (TYK2) is a member of the Janus kinases family implicated in the signal transduction of type I interferons and several interleukins. It has been described that genetic mutations within TYK2 lead to multiple deleterious effects in the immune response. In this work, we have analyzed three functional independent variants from the frequency spectrum on the TYK2 gene (common and low-frequency variants) suggested to reduce the function of the gene in mediating cytokine signaling and the susceptibility to infections by Trypanosoma cruzi and/or the development of Chagas cardiomyopathy in the Colombian population...
2018: PloS One
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