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Khan AA, Langston HC, Walsh L, Roscoe R, Jayawardhana S, Francisco AF, Taylor MC, McCann CJ, Kelly JM, Lewis MD. Enteric nervous system regeneration and functional cure of experimental digestive Chagas disease with trypanocidal chemotherapy. Nat Commun 2024; 15:4400. [PMID: 38782898 PMCID: PMC11116530 DOI: 10.1038/s41467-024-48749-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 05/09/2024] [Indexed: 05/25/2024] Open
Abstract
Digestive Chagas disease (DCD) is an enteric neuropathy caused by Trypanosoma cruzi infection. There is a lack of evidence on the mechanism of pathogenesis and rationales for treatment. We used a female C3H/HeN mouse model that recapitulates key clinical manifestations to study how infection dynamics shape DCD pathology and the impact of treatment with the front-line, anti-parasitic drug benznidazole. Curative treatment 6 weeks post-infection resulted in sustained recovery of gastrointestinal transit function, whereas treatment failure led to infection relapse and gradual return of DCD symptoms. Neuro/immune gene expression patterns shifted from chronic inflammation to a tissue repair profile after cure, accompanied by increased cellular proliferation, glial cell marker expression and recovery of neuronal density in the myenteric plexus. Delaying treatment until 24 weeks post-infection led to partial reversal of DCD, suggesting the accumulation of permanent tissue damage over the course of chronic infection. Our study shows that murine DCD pathogenesis is sustained by chronic T. cruzi infection and is not an inevitable consequence of acute stage denervation. The risk of irreversible enteric neuromuscular tissue damage and dysfunction developing highlights the importance of prompt diagnosis and treatment. These findings support the concept of treating asymptomatic, T. cruzi-infected individuals with benznidazole to prevent DCD development.
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Affiliation(s)
- Archie A Khan
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, Keppel Street, WC1E 7HT, London, UK
| | - Harry C Langston
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, Keppel Street, WC1E 7HT, London, UK
| | - Louis Walsh
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, Keppel Street, WC1E 7HT, London, UK
| | - Rebecca Roscoe
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, Keppel Street, WC1E 7HT, London, UK
| | - Shiromani Jayawardhana
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, Keppel Street, WC1E 7HT, London, UK
| | - Amanda Fortes Francisco
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, Keppel Street, WC1E 7HT, London, UK
| | - Martin C Taylor
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, Keppel Street, WC1E 7HT, London, UK
| | - Conor J McCann
- Stem Cells and Regenerative Medicine, University College London, Great Ormond Street Institute of Child Health, London, UK
| | - John M Kelly
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, Keppel Street, WC1E 7HT, London, UK
| | - Michael D Lewis
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, Keppel Street, WC1E 7HT, London, UK.
- Division of Biomedical Sciences, Warwick Medical School, University of Warwick, CV4 7AJ, Coventry, UK.
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Atero N, Torres M, Domínguez A, Diethelm-Varela B, Córdova-Bührle F, Mardones FO. Spatio-temporal distribution of hospitalizations for chronic Chagas disease and risk factors associated with in-hospital mortality and surgical intervention in Chile. PLoS Negl Trop Dis 2024; 18:e0012124. [PMID: 38662649 PMCID: PMC11045106 DOI: 10.1371/journal.pntd.0012124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 04/01/2024] [Indexed: 04/28/2024] Open
Abstract
Chagas disease (CD) is a neglected parasitic zoonotic disease that affects over 6 million people worldwide. We conducted a retrospective study to analyze the spatiotemporal trends and risk factors for hospitalization rates of CD with cardiac and digestive diagnoses in Chile. We used the Mann-Kendall analysis for temporal trends, Global Moran's Index, and Local Indicators of Spatial Association to identify spatial autocorrelation, and regression models to determine the risk factors associated with in-hospital mortality and surgical intervention. Between 2010 and 2020, a total of 654 hospitalizations were reported, corresponding to 527 individuals. The hospitalization rate steadily decreased over the years (t = -0.636; p = 0.009). The Global Moran's I for the study period showed a positive spatial autocorrelation for hospitalization municipality and for residence municipality of CD patients (I = 0.25, p<0.001 and I = 0.45, p<0.001 respectively), indicating a clustering of hospitalizations in northern municipalities. The most frequent diagnosis was a chronic CD with digestive system involvement (55.8%) followed by a chronic CD with heart involvement (44.2%). The highest percentage of hospital discharges was observed among males (56.9%) and in the 60-79 age group (52.7%). In-hospital mortality risk was higher with increasing age (OR = 1.04), and in patients with cardiac involvement (OR = 2.3), whereas factors associated with the risk of undergoing a surgical intervention were sex (OR = 1.6) and diagnosis of CD with digestive involvement (OR = 4.4). The findings of this study indicate that CD is still a significant public health burden in Chile. Efforts should focus on improving access to timely diagnoses and treatment, reducing disease progression and hospitalization burden, and supporting clinicians in preventing complications and deaths.
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Affiliation(s)
- Nicolhole Atero
- Escuela de Medicina Veterinaria, Facultad de Agronomía e Ingeniería Forestal, Facultad de Ciencias Biológicas y Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Salud Pública, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Marisa Torres
- Departamento de Salud Pública, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Angélica Domínguez
- Departamento de Salud Pública, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- Center for Cancer Prevention and Control (CECAN), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Benjamín Diethelm-Varela
- Escuela de Medicina Veterinaria, Facultad de Agronomía e Ingeniería Forestal, Facultad de Ciencias Biológicas y Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Francisca Córdova-Bührle
- Escuela de Medicina Veterinaria, Facultad de Agronomía e Ingeniería Forestal, Facultad de Ciencias Biológicas y Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- Dirección de Transferencia y Desarrollo, Vicerrectoría de Investigación, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Fernando O. Mardones
- Escuela de Medicina Veterinaria, Facultad de Agronomía e Ingeniería Forestal, Facultad de Ciencias Biológicas y Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Enfermedades Infecciosas e Inmunología Pediátrica, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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Baldoni NR, de Oliveira-da Silva LC, Gonçalves ACO, Quintino ND, Ferreira AM, Bierrenbach AL, Padilha da Silva JL, Pereira Nunes MC, Ribeiro ALP, Oliveira CDL, Sabino EC, Cardoso CS. Gastrointestinal Manifestations of Chagas Disease: A Systematic Review with Meta-Analysis. Am J Trop Med Hyg 2024; 110:10-19. [PMID: 38052078 DOI: 10.4269/ajtmh.23-0323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/20/2023] [Indexed: 12/07/2023] Open
Abstract
The aims of this study were to estimate the prevalence of gastrointestinal manifestations among individuals with positive serology for Chagas disease (ChD) and to describe the clinical gastrointestinal manifestations of the disease. A systematic review with meta-analysis was conducted based on the criteria and recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. The PubMed, Scopus, Virtual Health Library, Web of Science, and Embase databases were used to search for evidence. Two reviewers independently selected eligible articles and extracted data. RStudio® software was used for the meta-analysis. For subgroup analysis, the studies were divided according to the origin of the individuals included: 1) individuals from health units were included in the health care service prevalence analysis, and 2) individuals from the general population were included in the population prevalence analysis. A total of 2,570 articles were identified, but after removal of duplicates and application of inclusion criteria, 24 articles were included and 21 were part of the meta-analysis. Most of the studies were conducted in Brazil. Radiological diagnosis was the most frequent method used to identify the gastrointestinal clinical form. The combined effect of meta-analysis studies showed a prevalence of gastrointestinal manifestations in individuals with ChD of 12% (95% CI, 8.0-17.0%). In subgroup analysis, the prevalence for studies involving health care services was 16% (95% CI, 11.0-23.0%), while the prevalence for population-based studies was 9% (95% CI, 5.0-15.0%). Megaesophagus and megacolon were the main forms of ChD presentation in the gastrointestinal form. The prevalence of gastrointestinal manifestations of ChD was 12%. Knowing the prevalence of ChD in its gastrointestinal form is an important step in planning health actions for these patients.
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Affiliation(s)
- Nayara Ragi Baldoni
- University of Itaúna, Itaúna, Brazil
- Research Group in Epidemiology and Evaluation of New Technology in Health, UFSJ/CNPq, Medical School, Federal University of de São João del-Rei, Divinópolis, Brazil
| | | | - Ana Carolina Oliveira Gonçalves
- Research Group in Epidemiology and Evaluation of New Technology in Health, UFSJ/CNPq, Medical School, Federal University of de São João del-Rei, Divinópolis, Brazil
| | - Nayara Dornela Quintino
- Research Group in Epidemiology and Evaluation of New Technology in Health, UFSJ/CNPq, Medical School, Federal University of de São João del-Rei, Divinópolis, Brazil
- Divinópolis Regional Health Superintendence/Minas Gerais State Health Secretariat (SES-MG), Belo Horizonte, Brazil
| | | | - Ana Luiza Bierrenbach
- Teaching and Research Institute of Sírio-Libanês Hospital, São Paulo, Brazil
- Graduate Program, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil
| | | | | | | | - Claudia Di Lorenzo Oliveira
- Research Group in Epidemiology and Evaluation of New Technology in Health, UFSJ/CNPq, Medical School, Federal University of de São João del-Rei, Divinópolis, Brazil
| | - Ester Cerdeira Sabino
- Institute of Tropical Medicine, Faculty of Medicine, University of São Paulo, Brazil
| | - Clareci Silva Cardoso
- Research Group in Epidemiology and Evaluation of New Technology in Health, UFSJ/CNPq, Medical School, Federal University of de São João del-Rei, Divinópolis, Brazil
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Vásconez-González J, Izquierdo-Condoy JS, Fernandez-Naranjo R, Gamez-Rivera E, Tello-De-la-Torre A, Guerrero-Castillo GS, Ruiz-Sosa C, Ortiz-Prado E. Severe Chagas disease in Ecuador: a countrywide geodemographic epidemiological analysis from 2011 to 2021. Front Public Health 2023; 11:1172955. [PMID: 37143984 PMCID: PMC10151800 DOI: 10.3389/fpubh.2023.1172955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/04/2023] [Indexed: 05/06/2023] Open
Abstract
Background Chagas disease is a neglected and often forgotten tropical disease caused by the Trypanosoma cruzi. This parasite can be transmitted through the direct contact of human skin with feces and urine of the triatomine insect. According to the World Health Organization (WHO), an estimated 6-7 million people are infected worldwide, killing at least 14,000 every year. The disease has been reported in 20 of the 24 provinces of Ecuador, with El Oro, Guayas, and Loja being the most affected. Methodology We analyzed the morbidity and mortality rates of severe Chagas disease in Ecuador on a nationwide, population-based level. Hospitalization cases and deaths were also examined based on altitude, including low (< 2,500 m) and high (> 2,500 m) altitudes, according to the International Society. Data was retrieved from the National Institute of Statistics and Census hospital admissions and in-hospital mortality databases from 2011 to 2021. Results A total of 118 patients have been hospitalized in Ecuador since 2011 due to Chagas disease. The overall in-hospital mortality rate was 69.4% (N = 82). Men have a higher incidence rate (4.8/1,000,000) than women, although women have a significantly higher mortality rate than men (6.9/1,000,000). Conclusion Chagas disease is a severe parasitic condition that primarily affects rural and poorer areas of Ecuador. Men are more likely to be infected due to differences in work and sociocultural activities. Using average elevation data, we conducted a geodemographic analysis to assess incidence rates by altitude. Our findings indicate that the disease is more common at low and moderate altitudes, but recent increases in cases at higher altitudes suggest that environmental changes, such as global warming, could be driving the proliferation of disease-carrying vectors in previously unaffected areas.
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Affiliation(s)
- Jorge Vásconez-González
- One Health Research Group, Faculty of Health Science, Universidad de Las Americas, Quito, Ecuador
| | - Juan S. Izquierdo-Condoy
- One Health Research Group, Faculty of Health Science, Universidad de Las Americas, Quito, Ecuador
| | - Raul Fernandez-Naranjo
- One Health Research Group, Faculty of Health Science, Universidad de Las Americas, Quito, Ecuador
| | - Esteban Gamez-Rivera
- One Health Research Group, Faculty of Health Science, Universidad de Las Americas, Quito, Ecuador
| | - Andrea Tello-De-la-Torre
- One Health Research Group, Faculty of Health Science, Universidad de Las Americas, Quito, Ecuador
| | | | - Carlos Ruiz-Sosa
- Postgraduate in Gastroenterology and Digestive Endoscopy, Faculty of Medicine, Pontificia Universidad Católica del Ecuador, Quito, Ecuador
| | - Esteban Ortiz-Prado
- One Health Research Group, Faculty of Health Science, Universidad de Las Americas, Quito, Ecuador
- *Correspondence: Esteban Ortiz-Prado,
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