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Chagas disease congenital

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https://www.readbyqxmd.com/read/29739357/serological-evaluation-for-chagas-disease-in-migrants-from-latin-american-countries-resident-in-rome-italy
#1
Stefania Pane, Maria Letizia Giancola, Pierluca Piselli, Angela Corpolongo, Ernestina Repetto, Rita Bellagamba, Claudia Cimaglia, Stefania Carrara, Piero Ghirga, Alessandra Oliva, Nazario Bevilacqua, Ahmad Al Rousan, Carla Nisii, Giuseppe Ippolito, Emanuele Nicastri
BACKGROUND: Chagas disease (CD) is a systemic parasitic infection caused by the protozoan Trypanosoma cruzi, whose chronic phase may lead to cardiac and intestinal disorders. Endemic in Latin America where it is transmitted mainly by vectors, large-scale migrations to other countries have turned CD into a global health problem because of its alternative transmission routes through blood transfusion, tissue transplantation, or congenital. Aim of this study was to compare the performance of two commercially available tests for serological diagnosis of CD in a group of Latin American migrants living in a non-endemic setting (Rome, Italy)...
May 8, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29714163/congenital-chagas-disease-in-the-united-states-cost-savings-through-maternal-screening
#2
Eileen Stillwaggon, Victoria Perez-Zetune, Stephanie R Bialek, Susan P Montgomery
Chagas disease, caused by Trypanosoma cruzi , is transmitted by insect vectors through transfusions, transplants, insect feces in food, and from mother to child during gestation. Congenital infection could perpetuate Chagas disease indefinitely, even in countries without vector transmission. An estimated 30% of infected persons will develop lifelong, potentially fatal, cardiac or digestive complications. Treatment of infants with benznidazole is highly efficacious in eliminating infection. This work evaluates the costs of maternal screening and infant testing and treatment of Chagas disease in the United States...
April 30, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29680285/congenital-chagas-disease-in-a-non-endemic-area-results-from-a-control-programme-in-bergamo-province-northern-italy
#3
Paola Rodari, Andrea Angheben, Giorgio Gennati, Livia Trezzi, Graziano Bargiggia, Marzia Maino, Maurizio Ruggeri, Stefania Rampello, Laura Soavi, Marco Rizzi
INTRODUCTION: In non-endemic countries, one of the most important routes of transmission of Trypanosoma cruzi is vertical transmission. The objective of this work is to report the results of the screening activities for the control of congenital Chagas Disease (CD) implemented in Bergamo province between January 2014 and December 2016. METHODS: The programme addressed Bolivian pregnant women settled in Bergamo province. All the eight hospitals offering antenatal and delivery care in that area were involved...
April 19, 2018: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/29668134/-anti-trypanosoma-cruzi-antibodies-in-latin-american-migrants-in-transit-through-the-m%C3%A3-xico-usa-border
#4
Laura Mayela Montes-Rincón, Lucio Galaviz-Silva, Zinnia Judith Molina-Garza
INTRODUCTION: In recent years, American trypanosomiasis has become an emergent public health problem in countries receiving migrant populations such as México, USA, Canada or those in Europe. OBJECTIVE: To analyze the prevalence of anti-Trypanosoma cruzi antibodies in Latin American migrants on their way to USA and Canada by means of serological techniques. MATERIAL AND METHODS: ELISA and IHA were performed to detect anti-T. cruzi antibodies...
March 15, 2018: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29610170/some-limitations-for-early-diagnosis-of-congenital-chagas-infection-by-pcr
#5
Bibiana Julieta Volta, Alina Elizabet Perrone, Rocío Rivero, Karenina Scollo, Patricia Laura Bustos, Jacqueline Bua
Trypanosoma cruzi , the causing agent of Chagas disease, can be transmitted to the offspring of infected pregnant women, thus being an epidemiologically important way of parasite transmission in humans. In addition, the migration of infected women from endemic areas to nonendemic countries may export this parasite infection. The diagnosis of congenital Chagas disease relies on the detection of the parasite because maternal antibodies are passively transferred to infants during pregnancy. The diagnosis of congenital infection can also be confirmed by detection of infant-specific anti- T cruzi antibodies at 10 months after delivery...
April 2018: Pediatrics
https://www.readbyqxmd.com/read/29577492/nitric-oxide-synthase-and-oxidative-nitrosative-stress-play-a-key-role-in-placental-infection-by-trypanosoma-cruzi
#6
María Fernanda Triquell, Cintia Díaz-Luján, María Cristina Romanini, Juan Carlos Ramirez, Patricia Paglini-Oliva, Alejandro Gabriel Schijman, Ricardo Emilio Fretes
PROBLEM: The innate immune response of the placenta may participate in the congenital transmission of Chagas disease through releasing reactive oxygen and nitrogen intermediates. METHOD OF STUDY: Placental explants were cultured with 1 × 106 and 1 × 105 trypomastigotes of Tulahuen and Lucky strains and controls without parasites, and with the addition of nitric oxide synthase inhibitor Nω-Nitro-l-arginine methyl ester (l-NAME) and N-acetyl cysteine (NAC) as the reactive oxygen species (ROS) scavenger...
March 25, 2018: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29554086/are-the-london-declaration-s-2020-goals-sufficient-to-control-chagas-disease-modeling-scenarios-for-the-yucatan-peninsula
#7
Bruce Y Lee, Sarah M Bartsch, Laura Skrip, Daniel L Hertenstein, Cameron M Avelis, Martial Ndeffo-Mbah, Carla Tilchin, Eric O Dumonteil, Alison Galvani
BACKGROUND: The 2020 Sustainable Development goals call for 100% certified interruption or control of the three main forms of Chagas disease transmission in Latin America. However, how much will achieving these goals to varying degrees control Chagas disease; what is the potential impact of missing these goals and if they are achieved, what may be left? METHODS: We developed a compartmental simulation model that represents the triatomine, human host, and non-human host populations and vector-borne, congenital, and transfusional T...
March 19, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29545200/alterations-in-placental-gene-expression-of-pregnant-women-with-chronic-chagas-disease
#8
Natalia A Juiz, Irma Torrejón, Marianela Burgos, Ana M F Torres, Tomás Duffy, Nelly M Cayo, Anahí Tabasco, Miriam Salvo, Silvia A Longhi, Alejandro G Schijman
Trypanosoma cruzi infection in women of reproductive age is associated with congenital transmission and adverse pregnancy outcomes. The placenta is a key barrier to infection. Gene expression profiles of term placental environment from T. cruzi-seropositive (SP) and -seronegative (SN) mothers were characterized by RNA-Seq. Nine pools of placental RNA paired samples were used: three from SN and six from SP tissues. Each pool consisted of female/male newborns and vaginal/cesarean delivery binomials. No newborn was congenitally infected...
June 2018: American Journal of Pathology
https://www.readbyqxmd.com/read/29525805/congenital-chagas-disease-in-a-bolivian-newborn-in-bergamo-italy
#9
Graziano Bargiggia, Maurizio Ruggeri, Gaia Ortalli, Simona Gabrielli, Paola Rodari, Lorenzo D'Antiga, Claudio Farina
Chagas disease (CD) is an uncommon disease in Europe. Its epidemiology has changed because of mass migration from Latin America to Europe. Herein we describe a congenital case of CD in a Bolivian newborn in Bergamo, the main city of residence for the Bolivian community in Italy. At delivery, serological analyses evidenced IgG antibodies against Trypanosoma cruzi both in the child and mother, as expected. Hemoscopic analyses on peripheral blood were repeatedly negative during the first months of life. Eventually, thanks to T...
March 1, 2018: Le Infezioni in Medicina
https://www.readbyqxmd.com/read/29476727/molecular-diagnosis-of-trypanosoma-cruzi
#10
REVIEW
Alejandro G Schijman
Chagas disease, caused by the kinetoplastid protozoan Trypanosoma cruzi, affects millions of people, most of them neglected populations. The different phases of the disease, the transmission mode and the high genetic variability of the parasite determine that molecular detection methods display different degree of success. Molecular diagnostic tests may be employed during epidemiological surveys of transmission, for early diagnosis of congenital transmission and acute infections due to oral transmission, transfusion or transplantation routes, reactivation due to immunosuppression and monitoring of treatment response in chronically infected patients receiving trypanocidal chemotherapy...
February 21, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29448038/molecular-and-biological-characterization-of-a-highly-pathogenic-trypanosoma-cruzi-strain-isolated-from-a-patient-with-congenital-infection
#11
Julián Ernesto Nicolás Gulin, Margarita Bisio, Daniela Marisa Rocco, Jaime Altcheh, María Elisa Solana, Facundo García-Bournissen
Although many Trypanosoma cruzi (T. cruzi) strains isolated from a wide range of hosts have been characterized, there is a lack of information about biological features from vertically transmitted strains. We describe the molecular and biological characteristics of the T. cruzi VD strain isolated from a congenital Chagas disease patient. The VD strain was typified as DTU TcVI; in vitro sensitivity to nifurtimox (NFX) and beznidazole (BZ) were 2.88 μM and 6.19 μM respectively, while inhibitory concentrations for intracellular amastigotes were 0...
March 2018: Experimental Parasitology
https://www.readbyqxmd.com/read/29364882/quantitative-and-histological-assessment-of-maternal-fetal-transmission-of-trypanosoma-cruzi-in-guinea-pigs-an-experimental-model-of-congenital-chagas-disease
#12
Jatziri Torres-Vargas, Matilde Jiménez-Coello, Eugenia Guzmán-Marín, Karla Y Acosta-Viana, Zaida E Yadon, Eduardo Gutiérrez-Blanco, José Leonardo Guillermo-Cordero, Nisha J Garg, Antonio Ortega-Pacheco
OBJECTIVE: We evaluated the effect of Trypanosoma cruzi infection on fertility, gestation outcome, and maternal-fetal transmission in guinea pigs (Cavia porcellus). METHODS: Animals were infected with T. cruzi H4 strain (TcI lineage) before gestation (IBG) or during gestation (IDG). Tissue and sera samples of dams and fetuses were obtained near parturition. RESULTS: All IBG and IDG dams were seropositive by two tests, and exhibited blood parasite load of 1...
January 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29208238/toll-like-receptor-2-mediates-local-innate-immune-response-against-trypanosoma-cruzi-in-ex-vivo-infected-human-placental-chorionic-villi-explants
#13
Christian Castillo, Lorena Muñoz, Ileana Carrillo, Ana Liempi, Lisvaneth Medina, Norbel Galanti, Juan Diego Maya, Ulrike Kemmerling
BACKGROUND: Congenital Chagas disease is caused by the protozoan parasite Trypanosoma cruzi that must cross the placental barrier during transmission. The trophoblast constitutes the first tissue in contact with the maternal-blood circulating parasite. Importantly, the congenital transmission rates are low, suggesting the presence of local placental defense mechanisms. On the other hand, the placenta is considered an immune regulatory organ since it acts as a modulator of fetal and maternal immune responses...
December 2017: Placenta
https://www.readbyqxmd.com/read/29203618/congenitally-transmitted-chagas-disease-in-canada-a-family-cluster
#14
Pierre J Plourde, Kamran Kadkhoda, Momar Ndao
No abstract text is available yet for this article.
December 4, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/29032059/is-the-adaptive-immune-response-in-murine-trypanosoma-cruzi-infection-influenced-by-zinc-supplementation
#15
Cássia Mariana Bronzon da Costa, Marina Del Vecchio Filipin, Fabrícia Helena Santello, Luiz Miguel Pereira, Miriam Paula Alonso Toldo, José Clóvis do Prado Júnior, Ana Amélia Carraro Abrahão
Chagas disease afflicts 7 to 8 million people worldwide and congenital Chagas' disease usually leads to changes in the maternal environment, culminating in fetal adaptations. Several articles have described the importance of micronutrients on pregnancy, which is sensitive to infections. In Trypanosoma cruzi endemic regions, the Chagas disease is aggravated by the lack of micronutrients in an average diet, to which pregnant women are more susceptible. The aim of this study was to evaluate distinct T cells phenotypes and intracellular cytokines by flow cytometry in pregnant Wistar rats under zinc therapy during experimental Chagas' disease...
October 12, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28978686/the-trypomastigote-small-surface-antigen-from-trypanosoma-cruzi-improves-treatment-evaluation-and-diagnosis-in-pediatric-chagas-disease
#16
Virginia Balouz, Luciano J Melli, Romina Volcovich, Guillermo Moscatelli, Samanta Moroni, Nicolás González, Griselda Ballering, Margarita Bisio, Andrés E Ciocchini, Carlos A Buscaglia, Jaime Altcheh
Chagas disease is caused by the protozoan parasite Trypanosoma cruzi Assessment of parasitological cure upon treatment with available drugs relies on achieving consistent negative results in conventional parasitological and serological tests, which may take years to assess. Here, we evaluated the use of a recombinant T. cruzi antigen termed trypomastigote small surface antigen (TSSA) as an early serological marker of drug efficacy in T. cruzi -infected children. A cohort of 78 pediatric patients born to T. cruzi -infected mothers was included in this study...
December 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28892479/towards-chagas-disease-elimination-neonatal-screening-for-congenital-transmission-in-rural-communities
#17
Pamela Marie Pennington, José Guillermo Juárez, Margarita Rivera Arrivillaga, Sandra María De Urioste-Stone, Katherine Doktor, Joe P Bryan, Clara Yaseli Escobar, Celia Cordón-Rosales
Chagas disease is a neglected tropical disease that continues to affect populations living in extreme poverty in Latin America. After successful vector control programs, congenital transmission remains as a challenge to disease elimination. We used the PRECEDE-PROCEED planning model to develop strategies for neonatal screening of congenital Chagas disease in rural communities of Guatemala. These communities have persistent high triatomine infestations and low access to healthcare. We used mixed methods with multiple stakeholders to identify and address maternal-infant health behaviors through semi-structured interviews, participatory group meetings, archival reviews and a cross-sectional survey in high risk communities...
September 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28820896/a-strategy-for-scaling-up-access-to-comprehensive-care-in-adults-with-chagas-disease-in-endemic-countries-the-bolivian-chagas-platform
#18
Maria-Jesus Pinazo, Jimy Pinto, Lourdes Ortiz, Jareth Sánchez, Wilson García, Ruth Saravia, Mirko-R Cortez, Silvia Moriana, Enric Grau, Daniel Lozano, Joaquim Gascon, Faustino Torrico
BACKGROUND: Bolivia has the highest prevalence of Chagas disease (CD) in the world (6.1%), with more than 607,186 people with Trypanosoma cruzi infection, most of them adults. In Bolivia CD has been declared a national priority. In 2009, the Chagas National Program (ChNP) had neither a protocol nor a clear directive for diagnosis and treatment of adults. Although programs had been implemented for congenital transmission and for acute cases, adults remained uncovered. Moreover, health professionals were not aware of treatment recommendations aimed at this population, and research on CD was limited; it was difficult to increase awareness of the disease, understand the challenges it presented, and adapt strategies to cope with it...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28777208/survey-of-pediatric-infectious-diseases-society-members-about-congenital-chagas-disease
#19
Morven S Edwards, Francisca A Abanyie, Susan P Montgomery
Participants in a survey about congenital Chagas disease, distributed electronically to Pediatric Infectious Diseases Society members, perceived having limited knowledge about congenital Trypanosoma cruzi infection. Most rarely or never consider the diagnosis in infants born to parents from Latin America. Improved awareness of congenital Chagas disease and assessment of at-risk infants is needed.
January 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28727985/comparative-study-and-analytical-verification-of-pcr-methods-for-the-diagnosis-of-congenital-chagas-disease
#20
Carolina Inés Cura, Juan Carlos Ramírez, Marcelo Rodríguez, Constanza Lopez-Albízu, Lucía Irazu, Karenina Scollo, Sergio Sosa-Estani
Congenital infection is currently the first cause of new cases of Chagas disease in Argentina and nonendemic areas worldwide. Its diagnosis is of utmost importance to guarantee curative treatment. To improve such diagnosis, a transfer process of PCR tests to the national laboratory network has been initiated. We performed a comparative study of four PCR assays [two end-point PCR and two duplex real-time quantitative PCR (qPCR) procedures] to detect Trypanosoma cruzi DNA in blood samples. Because satellite DNA and kinetoplastid DNA qPCR methods have the best performance and the use of two different molecular targets for confirmatory purposes has been recommended, these methods selected to perform the transfer process and, in consequence, subjected to an analytical verification protocol based on international guidelines...
July 17, 2017: Journal of Molecular Diagnostics: JMD
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