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Botoni FA, Lambertucci JR, Santos RAS, Müller J, Talvani A, Wallukat G. Functional autoantibodies against G protein-coupled receptors in hepatic and pulmonary hypertensions in human schistosomiasis. Front Immunol 2024; 15:1404384. [PMID: 38953035 PMCID: PMC11216020 DOI: 10.3389/fimmu.2024.1404384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 05/23/2024] [Indexed: 07/03/2024] Open
Abstract
Introduction Schistosomiasis (SM) is a parasitic disease caused by Schistosoma mansoni. SM causes chronic inflammation induced by parasitic eggs, with collagen/fibrosis deposition in the granuloma process in the liver, spleen, central nervous system, kidneys, and lungs. Pulmonary arterial hypertension (PAH) is a clinical manifestation characterized by high pressure in the pulmonary circulation and right ventricular overload. This study investigated the production of functional autoantibodies (fAABs) against the second loop of the G-protein-coupled receptor (GPCR) in the presence of hepatic and PAH forms of human SM. Methods Uninfected and infected individuals presenting acute and chronic manifestations (e.g., hepatointestinal, hepato-splenic without PAH, and hepato-splenic with PAH) of SM were clinically evaluated and their blood was collected to identify fAABs/GPCRs capable of recognizing endothelin 1, angiotensin II, and a-1 adrenergic receptor. Human serum was analyzed in rat cardiomyocytes cultured in the presence of the receptor antagonists urapidil, losartan, and BQ123. Results The fAABs/GPCRs from chronic hepatic and PAH SM individuals, but not from acute SM individuals, recognized the three receptors. In the presence of the antagonists, there was a reduction in beating rate changes in cultured cardiomyocytes. In addition, binding sites on the extracellular domain functionality of fAABs were identified, and IgG1 and/or IgG3 antibodies were found to be related to fAABs. Conclusion Our data suggest that fAABs against GPCR play an essential role in vascular activity in chronic SM (hepatic and PAH) and might be involved in the development of hypertensive forms of SM.
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Affiliation(s)
- Fernando Antonio Botoni
- Postgraduate Program in Infectiology and Tropical Medicine, School of Medicine, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Internal Medicine Department, School of Medicine Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Fundação Hospitalar do Estado de Minas Gerais - FHEMIG, Belo Horizonte, Brazil
| | - José Roberto Lambertucci
- Postgraduate Program in Infectiology and Tropical Medicine, School of Medicine, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Internal Medicine Department, School of Medicine Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Postgraduate Program in Health and Nutrition, School of Nutrition, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Robson Augusto Souza Santos
- Department of Physiology and Biophysics of the Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Andre Talvani
- Postgraduate Program in Infectiology and Tropical Medicine, School of Medicine, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Postgraduate Program in Health and Nutrition, School of Nutrition, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Department of Biological Sciences, Universidade Federal Ouro Preto, Ouro Preto, Brazil
| | - Gerd Wallukat
- Berlin Cures GmbH, Berlin, Germany
- Max-Delbrück Centrum für Molekulare Medizin, Berlin, Germany
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2
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Rosa AAD, Brandão-Bezerra L, Corrêa CL, Amaral G Da-Silva S, Rodrigues LS, Machado-Silva JR, Neves RH. Changes in splenic tissue and immune response profile of Schistosoma mansoni infected mice submitted to chronic ethanol intake. Exp Parasitol 2024; 259:108706. [PMID: 38309327 DOI: 10.1016/j.exppara.2024.108706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 12/08/2023] [Accepted: 01/25/2024] [Indexed: 02/05/2024]
Abstract
In Schistosoma mansoni infection, the spleen is one of the organs affected, causing its enlargement (splenomegaly). Intake of ethanol through alcoholic beverages can cause spleen atrophy and interfere with immune activity. To gain knowledge of this association on the spleen and on the immune response profile, male mice were used as an experimental model. These animals were divided into four groups: C. control; EC. uninfected/ethanol gavage; I. infected; and IE. infected/ethanol gavage. Groups I and IE were infected with about 100 cercariae (BH strain) of S. mansoni and in the fifth week of infection, gavage 200 μL/day/animal of 18 % ethanol was started for 28 consecutive days. At the end of the gavage (9th week of infection) all animals were euthanized. The spleen was removed and longitudinally divided in two parts. After histological processing, the sections were stained with H&E and Gomori's Reticulin for histopathological and stereological analyses, white pulp morphometry and quantification of megakaryocytes. The other fragment was macerated (in laminar flow) and the cell suspension, after adjusting the concentration (2 × 106), was plated to obtain cytokines produced by spleen cells that were measured by flow cytometry (Citometric Bead Array). Histopathological and quantitative analyzes in the spleen of the IE group showed an increase in the number of trabeculae and megakaryocytes, a decrease in reticular fibers, as well as important organizational changes in the white pulp and red pulp. Due to the decrease in the levels of cytokines measured and the result of the calculation of the ratio between the IFN-y and IL-10 cytokines (p = 0.0079) of the infected groups, we suggest that ethanol decreased the inflammatory and anti-inflammatory response generated by the infection (group IE, the production of cytokines was significantly decreased (p < 0.01). These changes demonstrate that ethanol ingestion interferes with some parameters of experimental S. mansoni infection, such as changes in splenic tissue and in the pattern of cytokine production.
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Affiliation(s)
- Aline Aparecida da Rosa
- Romero Lascasas Porto Laboratory of Helminthology, Department of Microbiology, Immunology and Parasitology, Faculty of Medical Sciences, Rio de Janeiro State University, Brazil
| | - Luciana Brandão-Bezerra
- Romero Lascasas Porto Laboratory of Helminthology, Department of Microbiology, Immunology and Parasitology, Faculty of Medical Sciences, Rio de Janeiro State University, Brazil
| | - Christiane Leal Corrêa
- Department of Pathology and Laboratories, School of Medical Sciences, Rio de Janeiro State University, Brazil; Medicine School, Estácio de Sá University, Brazil
| | - Silvia Amaral G Da-Silva
- Laboratory of Parasitic Immunopharmacology, Department of Microbiology, Immunology and Parasitology, Faculty of Medical Sciences, Rio de Janeiro State University, Brazil
| | - Luciana Silva Rodrigues
- Laboratory of Immunopathology, Department of Pathology and Laboratories, Faculty of Medical Sciences, Rio de Janeiro State University, Brazil
| | - José Roberto Machado-Silva
- Romero Lascasas Porto Laboratory of Helminthology, Department of Microbiology, Immunology and Parasitology, Faculty of Medical Sciences, Rio de Janeiro State University, Brazil
| | - Renata Heisler Neves
- Romero Lascasas Porto Laboratory of Helminthology, Department of Microbiology, Immunology and Parasitology, Faculty of Medical Sciences, Rio de Janeiro State University, Brazil.
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3
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Abalaka SE, Audu Z, Kolawole VO, Adeyemo BT, Idoko IS, Okafor ROS, Oyelowo-Abdulraheem FO, Tags SZ, Ogbe AO, Sanni S, Jegede OC, Sani NA, Tenuche OZ, Tizhe EV, Ejeh SA, Zachariya E. A case of chronic schistosomiasis in a Dongola stallion ( Equus ferus caballus Linnaeus, 1758) from Nigeria. J Parasit Dis 2023; 47:442-450. [PMID: 37193489 PMCID: PMC10182229 DOI: 10.1007/s12639-023-01581-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 03/30/2023] [Indexed: 05/18/2023] Open
Abstract
Schistosomiasis is a worldwide snail-borne parasitic infestation of man and animals with acute or chronic phases having devastating sequelae. The present case report focused on post-mortem examination of a cachexic Dongola stallion (Equus ferus caballus Linnaeus, 1758) in Abuja, Nigeria, that failed to respond to treatment. Typical dense collagenous granulomatous lesions with marked inflammatory responses and fibrosis occurred in the liver and several visceral organs of the horse along with other lesions indicative of systemic collapse. Special Ziehl-Neelsen and Periodic Acid-Schiff staining as well as microbial culture returned negative results to rule out acid-fast bacilli, fungal, and other bacterial involvement. In addition, the presence of a yellowish-brown eggshell within fibrosing granulomatous lesions led to the diagnosis of chronic schistosomiasis. Prolonged malnutrition under harsh and changing increment weather conditions with lack of medical care following the infection might have predisposed the horse to the recorded systemic collapse in the present case. The dearth of information on the ante-mortem evaluation of acute equine schistosomiasis cases notwithstanding, the observed lesions/cellular changes reinforced associated multi-organ damages and systemic collapse in chronic cases. Our findings highlighted the pathological presentations and prognosis of chronic schistosomiasis and its triggers, especially in endemic areas, and in horses that often do not present obvious clinical manifestations.
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Affiliation(s)
- Samson Eneojo Abalaka
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Abuja, Abuja, Nigeria
| | - Zakariya Audu
- Department of Animal Health and Production, Faculty of Veterinary Medicine, University of Abuja, Abuja, Nigeria
| | - Victor Olumayowa Kolawole
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Abuja, Abuja, Nigeria
| | - Bolade Thomas Adeyemo
- Department of Animal Health and Production, Faculty of Veterinary Medicine, University of Abuja, Abuja, Nigeria
| | - Idoko Sunday Idoko
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Abuja, Abuja, Nigeria
| | | | | | - Sam Zachariya Tags
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, University of Abuja, Abuja, Nigeria
| | - Adamu Okuwa Ogbe
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Abuja, Abuja, Nigeria
| | - Saka Sanni
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Abuja, Abuja, Nigeria
| | - Olorunfemi Cornelius Jegede
- Department of Veterinary Parasitology and Entomology, Faculty of Veterinary Medicine, University of Abuja, Abuja, Nigeria
| | - Nuhu Abdulazeez Sani
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Abuja, Abuja, Nigeria
| | - Oremeyi Zaynab Tenuche
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Abuja, Abuja, Nigeria
| | - Emmanuel Vandi Tizhe
- Department of Veterinary Microbiology and Pathology, Faculty of Veterinary Medicine, University of Jos, Jos, Nigeria
| | - Sunday Augustine Ejeh
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Abuja, Abuja, Nigeria
| | - Esther Zachariya
- Veterinary Teaching Hospital, University of Abuja, Abuja, Nigeria
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Veiga ZST, Fernandes FF, Guimarães L, Piedade J, Pereira GHS. Natural History of Hepatosplenic Schistosomiasis (HSS) Non–Cirrhotic Portal Hypertension (NCPH): Influence of Gastrointestinal Bleeding and Decompensation in Prognosis. Trop Med Infect Dis 2023; 8:tropicalmed8030145. [PMID: 36977145 PMCID: PMC10054624 DOI: 10.3390/tropicalmed8030145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
Background: Hepatosplenic schistosomiasis (HSS) is a peculiar form of non-cirrhotic portal hypertension (NCPH). Although HSS patients present normal hepatic function, some evolve signs of hepatocellular failure and features of decompensated cirrhosis. The natural history of HSS-NCPH is unknown. Methods: A retrospective study was conducted that evaluated patients who fulfilled clinical-laboratorial criteria for HSS. Results: A total of 105 patients were included. Eleven patients already presented with decompensated disease and had lower transplant-free survival at 5 years than those without (61% vs. 95%, p = 0.015). Among 94 patients without prior decompensation, the median follow-up was 62 months and 44% of them had varicose bleeding (two or more episodes in 27%). Twenty-one patients presented at least one episode of decompensation (10-year probability 38%). Upon multivariate analysis, varicose bleeding and higher bilirubin levels were associated with decompensation. The 10-year probability of survival was 87%. Development of decompensation and age were predictive of mortality. Conclusion: HSS is characterized by multiple episodes of GI bleeding, a high probability of decompensation and reduced survival at the end of the first decade. Decompensation is more common in patients with varicose esophageal bleeding and is associated with lower survival.
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Affiliation(s)
- Zulane S. T. Veiga
- Gastroenterology and Hepatology Unit, Bonsucesso Federal Hospital, Ministry of Health, Rio de Janeiro 22640-100, Brazil
| | - Flávia F. Fernandes
- Gastroenterology and Hepatology Unit, Bonsucesso Federal Hospital, Ministry of Health, Rio de Janeiro 22640-100, Brazil
| | - Lívia Guimarães
- Gastroenterology and Hepatology Unit, Bonsucesso Federal Hospital, Ministry of Health, Rio de Janeiro 22640-100, Brazil
| | - Juliana Piedade
- Gastroenterology and Hepatology Unit, Bonsucesso Federal Hospital, Ministry of Health, Rio de Janeiro 22640-100, Brazil
| | - Gustavo Henrique S. Pereira
- Gastroenterology and Hepatology Unit, Bonsucesso Federal Hospital, Ministry of Health, Rio de Janeiro 22640-100, Brazil
- School of Medicine, Estácio de Sá University, Rio de Janeiro 25550-100, Brazil
- Correspondence: ; Tel.: +55-21-39779893; Fax: +55-21-39779265
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5
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Barbosa FA, Nardelli MJ, Cançado GGL, Silva CF, Osório FMF, Melo RFQ, Taranto DOL, Ferrari TCA, Couto CA, Faria LC. Sarcopenia, body composition and factors associated with variceal gastrointestinal bleeding and splenectomy in hepatosplenic schistosomiasis mansoni. Trans R Soc Trop Med Hyg 2022; 116:1145-1153. [PMID: 35748511 DOI: 10.1093/trstmh/trac052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 05/01/2022] [Accepted: 06/02/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Sarcopenia is a common complication of cirrhosis and an important predictor of morbimortality. We aimed to determine the prevalence of sarcopenia and its associated factors in hepatosplenic schistosomiasis (HSS) as well as to evaluate whether muscle mass and function are associated with variceal upper gastrointestinal bleeding (VUGIB) and previous splenectomy in subjects without other liver diseases. METHODS We conducted a cross-sectional study including adults with HSS who underwent clinical, biochemical, anthropometric, muscle strength and physical performance evaluations and were submitted to bioelectrical impedance analysis and abdominal ultrasound. Sarcopenia was diagnosed according to the 2019 European consensus criteria. RESULTS A total of 66 patients with HSS (62.1% male; mean age 48.8±8.6 y) were included. Overall, six subjects (9.1%) were diagnosed with probable sarcopenia and none had confirmed sarcopenia. Fat-free body mass index (BMI) was independently associated with VUGIB (odds ratio 0.701 [95% confidence interval 0.51 to 0.96]; p=0.025). Compared with patients who did not undergo surgery, individuals who underwent esophagogastric devascularization combined with splenectomy (EGDS) had higher serum lipid levels, fat percentage and frequency of metabolic syndrome, with lower skeletal muscle mass index and hand grip strength. CONCLUSIONS HSS mansoni seems not to cause sarcopenia. However, a lower fat-free BMI was associated with previous VUGIB and the subgroup of patients who underwent EGDS presented higher lipid levels, fat percentage and frequency of metabolic syndrome and lower muscle mass and function.
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Affiliation(s)
- Fernanda A Barbosa
- Faculdade de Medicina da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 190 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil
| | - Mateus J Nardelli
- Faculdade de Medicina da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 190 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil
| | - Guilherme G L Cançado
- Faculdade de Medicina da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 190 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil.,Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 110 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil.,Hospital da Polícia Militar de Minas Gerais, Rua Pacífico Mascarenhas, s/n-Santa Efigênia, Belo Horizonte, Minas Gerais, 30110-013, Brazil
| | - Catherine F Silva
- Faculdade de Medicina da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 190 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil
| | - Fernanda M F Osório
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 110 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil
| | - Rodolfo F Q Melo
- Faculdade de Medicina da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 190 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil
| | - Daniela O L Taranto
- Serviço de Diagnóstico por Imagem, Hospital das Clínicas da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena 110 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil
| | - Teresa C A Ferrari
- Faculdade de Medicina da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 190 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil.,Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 110 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil
| | - Claudia A Couto
- Faculdade de Medicina da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 190 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil.,Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 110 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil
| | - Luciana C Faria
- Faculdade de Medicina da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 190 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil.,Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 110 - Santa Efigênia, Belo Horizonte, Minas Gerais, 30130-100, Brazil
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6
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Brandão-Bezerra L, Aparecida da Rosa A, Figueiredo de Oliveira RM, Neves RH, Corrêa CL, Machado-Silva JR. Impact of acute schistosomiasis mansoni and long-term ethanol intake on mouse liver pathology. Exp Parasitol 2022; 242:108388. [PMID: 36174706 DOI: 10.1016/j.exppara.2022.108388] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 09/08/2022] [Accepted: 09/21/2022] [Indexed: 11/26/2022]
Abstract
While the effect of ethanol and schistosomiasis mansoni on liver injury has been well-documented, the influence of comorbidity on liver pathology remains unclear. To address this gap, schistosomiasis-infected mice were given one daily dose of 18% ethanol for 28 consecutive days, from day 35 post-infection. Mice were assigned to four groups: A. control; B. uninfected/ethanol gavage; C. infected; and D. infected/ethanol gavage. At day 64 post-infection, mice were euthanized by CO2 asphyxiation, livers were excised, fixed in 10% buffered formalin, paraffin embedded and cut into 5 μm sections. These were stained with hematoxylin and eosin (HE), Lennert's Giemsa and picrosirius red (for polarization microscopy) to assess histopathological and stereological changes. Group B showed alcoholic liver disease (ALD), including microsteatosis, hepatocyte karyopyknosis, karyorrhexis, karyolysis, increased frequency of Kupffer cells, hydropic degeneration of hepatocyte, thickened plasma membrane and binucleated hepatocytes. Infected mice showed typical exudative and exudative-productive hepatic granulomas, and destruction of the adjacent hepatic parenchyma, resulting in necrotic tissue and periovular leukocyte infiltrate. Group D showed hyperemia (parenchymal panlobular lesions), and liquefactive necrosis in hepatic abscess area. There was also reduced liver collagen deposition (-76%; p = 0.0001) and reduced microsteatosis (-80%, p = 0.0079) compared to group C and group B, respectively. In conclusion, comorbidity exacerbated liver damage.
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Affiliation(s)
- Luciana Brandão-Bezerra
- Romero Lascasas Porto Laboratory of Helminthology, Department of Microbiology, Immunology and Parasitology, Medical Sciences College (FCM), Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil
| | - Aline Aparecida da Rosa
- Romero Lascasas Porto Laboratory of Helminthology, Department of Microbiology, Immunology and Parasitology, Medical Sciences College (FCM), Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil
| | - Regina Maria Figueiredo de Oliveira
- Romero Lascasas Porto Laboratory of Helminthology, Department of Microbiology, Immunology and Parasitology, Medical Sciences College (FCM), Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil
| | - Renata Heisler Neves
- Romero Lascasas Porto Laboratory of Helminthology, Department of Microbiology, Immunology and Parasitology, Medical Sciences College (FCM), Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil
| | - Christiane Leal Corrêa
- Department of Pathology and Laboratories, Medical Sciences College (FCM), Rio de Janeiro State University (UERJ), Brazil. Medical College, Estácio de Sá University, Rio de Janeiro, Brazil
| | - José Roberto Machado-Silva
- Romero Lascasas Porto Laboratory of Helminthology, Department of Microbiology, Immunology and Parasitology, Medical Sciences College (FCM), Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil.
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7
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Francisco JS, Terra MABL, Klein GCT, Dias de Oliveira BCEP, Pelajo-Machado M. The hepatic extramedullary hematopoiesis during experimental murine Schistosomiasis mansoni. Front Immunol 2022; 13:955034. [PMID: 36091027 PMCID: PMC9453041 DOI: 10.3389/fimmu.2022.955034] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/08/2022] [Indexed: 01/18/2023] Open
Abstract
Many years ago, our research group has demonstrated extramedullary hematopoiesis in the peripheral zone of murine hepatic schistosomal granulomas. In the present study, we revisit this phenomenon using new technical and conceptual approaches. Therefore, newborn mice were percutaneously infected by Schistosoma mansoni cercariae and euthanized between 35- and 60-days post infection. Liver samples were submitted to histopathology and immunohistochemical analyses. Cells under mitosis and/or expressing Ki67 demonstrated the proliferation of hematopoietic cells both around the parasite’s eggs trapped in the liver and around hepatic vessels. After 50 days post infection, proliferating cells at different levels on differentiation were located preferentially in the peripheral zone of the granulomas, around the vessels and inside the sinusoids. The presence of acidic and sulfated glycoconjugates, reticular fibers and the absence of fibronectin characterized the microenvironment for attraction and maintenance of hematopoiesis. Some neutrophils secreted MMP9 from the earliest points of infection, indicating degradation of the extracellular matrix in regions of histolysis and a possible chemoattraction of hematopoietic stem cells to the liver. Fall-3+ cells and Sca-1+ cells indicated that early hematopoietic progenitors could be mobilized to the liver. Groups of vWF+ megakaryocytes suggest chemoattraction of these cells and/or migration, proliferation, and differentiation of very immature progenitors to this organ. The increase of blood vessels and extramedullary hematopoiesis in this environment, where markers of immature hematopoietic and endothelial cells have been identified, points to the possibility of the presence of progenitors for endothelial and hematopoietic cells in the liver during the infection. There is also the possibility of concomitant migration of more differentiated hematopoietic progenitors, that proliferate and differentiate in the liver, and the occurrence of angiogenesis caused by inflammation or release of ovular antigens that stimulate the activation and proliferation of endothelial cells. Altogether, these data increase knowledge about a murine model that is of interest for investigating the pathology of the schistosomiasis and also the dynamics of hematopoiesis.
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Affiliation(s)
| | | | | | | | - Marcelo Pelajo-Machado
- Laboratory of Pathology, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
- Brazilian National Institute of Science and Technology on Neuroimmunomodulation, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
- *Correspondence: Marcelo Pelajo-Machado,
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8
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Rakotomalala JA, Razafindrazoto CI, Randriamifidy NH, Ralaizanaka BM, Maherison S, Hasina Laingonirina DH, Rakotomaharo M, Rasolonjatovo AS, Rakotovao MA, Rakotozafindrabe ALR, Rabenjanahary TH, Fanantenantsoa R, Razafimahefa SH, Ramanampamonjy RM. Splenectomy Combined with Endoscopic Variceal Ligation (EVL) versus EVL Alone for Secondary Prophylaxis of Variceal Bleeding in Hepatosplenic Schistosomiasis: A Retrospective Case-Control Study. Hepat Med 2022; 14:79-85. [PMID: 35611387 PMCID: PMC9124470 DOI: 10.2147/hmer.s367849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 05/12/2022] [Indexed: 11/23/2022] Open
Abstract
Background Hepatosplenic schistosomiasis (HSS) is one of the most common causes of portal hypertension in developing countries. Variceal bleeding is the most common cause of mortality during HSS. The objective of this study was to evaluate the efficacy of splenectomy associated with endoscopic variceal ligation (EVL) compared with EVL alone in preventing variceal bleeding in patients with HSS. Methods This was a single-center, retrospective, case–control study. Between January 2015 and December 2019, a total of 59 patients with HSS who had at least one variceal bleeding episode and received EVL with or without splenectomy were identified and stratified. In this case–control design, 22 patients had splenectomy + EVL (case group) and 37 patients had EVL alone (control group). The main endpoints were the rate of variceal rebleeding and the mortality rate between the two groups. Results The mean age of our patients was 39.92 ± 13.4 (19–75) years with a sex ratio of 1.8. The recurrence rate of variceal bleeding was significantly lower in the case group (splenectomy + EVL) than in the control group (EVL alone) (4.45% vs 27.2%, p = 0.041). There was no significant difference between the two groups in terms of mortality (4.54 vs 2.7%, p = 1.00). Conclusion Splenectomy combined with EVL was effective than EVL alone in preventing variceal rebleeding in patients with HSS.
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Affiliation(s)
| | | | | | | | - Sonny Maherison
- Gastroenterology Unit, University Hospital Joseph Raseta Befelatanana, Antananarivo, Madagascar
| | | | - Mialitiana Rakotomaharo
- Gastroenterology Unit, University Hospital Joseph Raseta Befelatanana, Antananarivo, Madagascar
| | | | - Mamisoa Anicet Rakotovao
- General Surgery Unit, University Hospital Andrainjato, Fianarantsoa, Madagascar.,Visceral Surgery Unit, University Hospital Tambohobe, Fianarantsoa, Madagascar
| | | | | | - Rija Fanantenantsoa
- General Surgery Unit, University Hospital Andrainjato, Fianarantsoa, Madagascar.,Visceral Surgery Unit, University Hospital Tambohobe, Fianarantsoa, Madagascar
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Rodrigues ML, da Luz TPSR, Pereira CLD, Batista AD, Domingues ALC, Silva RO, Lopes EP. Assessment of periportal fibrosis in Schistosomiasis mansoni patients by proton nuclear magnetic resonance-based metabonomics models. World J Hepatol 2022; 14:719-728. [PMID: 35646266 PMCID: PMC9099102 DOI: 10.4254/wjh.v14.i4.719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/20/2021] [Accepted: 03/25/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The evaluation of periportal fibrosis (PPF) is essential for a prognostic assessment of patients with Schistosomiasis mansoni. The WHO Niamey Protocol defines patterns of fibrosis from abdominal ultrasonography, 1H-nuclear magnetic resonance (NMR)-based metabonomics has been employed to assess liver fibrosis in some diseases. AIM To build 1H-NMR-based metabonomics models (MM) to discriminate mild from significant periportal PPF and identify differences in the metabolite profiles. METHODS A prospective cross-sectional study was performed on schistosomiasis patients at a University Hospital in Northeastern Brazil. We evaluated 41 serum samples from 10 patients with mild PPF (C Niamey pattern) and 31 patients with significant PPF (D/E/F Niamey patterns). MM were built using partial least squares-discriminant analysis (PLS-DA) and orthogonal projections to latent structures discriminant analysis (OPLS-DA) formalisms. RESULTS PLS-DA and OPLS-DA resulted in discrimination between mild and significant PPF groups with R2 and Q2 values of 0.80 and 0.38 and 0.72 and 0.42 for each model, respectively. The OPLS-DA model presented accuracy, sensitivity, and specificity values of 92.7%, 90.3%, and 100% to discriminate significant PPF. The metabolites identified as responsible by discrimination were: N-acetylglucosamines, alanine, glycolaldehyde, carbohydrates, and valine. CONCLUSION MMs discriminated mild from significant PPF patterns in patients with Schistosomiasis mansoni through identification of differences in serum metabolites profiles.
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Affiliation(s)
- Milena Lima Rodrigues
- Programa de Pós-Graduação em Medicina Tropical, Centro de Ciências Médicas, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, Brazil
| | | | - Caroline Louise Diniz Pereira
- Programa de Pós-Graduação em Medicina Tropical, Centro de Ciências Médicas, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, Brazil
| | - Andrea Dória Batista
- Hospital das Clínicas, Departamento de Medicina Clínica, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, Brazil
| | - Ana Lúcia Coutinho Domingues
- Programa de Pós-Graduação em Medicina Tropical, Centro de Ciências Médicas, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, Brazil
- Hospital das Clínicas, Departamento de Medicina Clínica, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, Brazil
| | - Ricardo Oliveira Silva
- Programa de Pós-Graduação em Química, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, Recife 50670-740, Pernambuco, Brazil
| | - Edmundo Pessoa Lopes
- Programa de Pós-Graduação em Medicina Tropical, Centro de Ciências Médicas, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, Brazil
- Hospital das Clínicas, Departamento de Medicina Clínica, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, Brazil.
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Santos JC, Pereira CLD, Domingues ALC, Lopes EP. Noninvasive diagnosis of periportal fibrosis in schistosomiasis mansoni: A comprehensive review. World J Hepatol 2022; 14:696-707. [PMID: 35646262 PMCID: PMC9099109 DOI: 10.4254/wjh.v14.i4.696] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/14/2021] [Accepted: 03/14/2022] [Indexed: 02/06/2023] Open
Abstract
Schistosomiasis mansoni is a neglected disease and key public health problem, mainly due to its high prevalence, the scarcity of public policies, and the severity of some clinical forms. Periportal fibrosis (PPF) is the commonest complication of chronic schistosomiasis mansoni and its diagnosis requires different techniques. Even though wedge biopsy of the liver is considered the gold standard, it is not justified in non-surgical patients, and percutaneous liver biopsy may be informative but does not have sufficient sensitivity. Noninvasive PPF tests mostly include biological (serum biomarkers or combined scores) or physical assessments (imaging assessment of fibrosis pattern or tissue stiffness). Moreover, imaging techniques, such as ultrasound, computed tomography, magnetic resonance imaging, and elastography are applied not only to support the diagnosis of schistosomiasis, but also to assess and detect signs of portal hypertension and organ damage due to chronic schistosomiasis. A combination between a comprehensive history and physical examination with biomarkers for liver fibrosis and imaging methods seems to offer the best approach for evaluating these patients. In addition, understanding their strengths and limitations will allow a more accurate interpretation in the clinical context and can lead to greater accuracy in estimating the degree of fibrosis in patients with Schistosomiasis mansoni (S. mansoni) infection. This review will discuss the different noninvasive methods that are currently available for the evaluation of PPF in S. mansoni infection, and their application, advantages, and limitations in clinical practice.
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Affiliation(s)
- Joelma Carvalho Santos
- Postgraduate Program in Tropical Medicine, Center of Health Sciences, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, Brazil
| | - Caroline Louise Diniz Pereira
- Postgraduate Program in Tropical Medicine, Center of Health Sciences, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, Brazil
| | - Ana Lúcia Coutinho Domingues
- Postgraduate Program in Tropical Medicine, Center of Health Sciences, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, Brazil
- Gastroenterology Division, Department of Internal Medicine of Center of Health Sciences, Hospital das Clínicas - Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, Brazil
| | - Edmundo Pessoa Lopes
- Postgraduate Program in Tropical Medicine, Center of Health Sciences, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, Brazil
- Gastroenterology Division, Department of Internal Medicine of Center of Health Sciences, Hospital das Clínicas - Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, Brazil.
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11
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Thrombocytopenia, splenomegaly, and periportal fibrosis in a migrant. Ann Hematol 2022; 101:1883-1884. [PMID: 35441857 DOI: 10.1007/s00277-022-04838-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 04/02/2022] [Indexed: 11/01/2022]
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12
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Rodrigues JGM, Lira MGS, Nogueira RA, Gomes GCC, Licá ICL, Silva JKADO, Miranda GS, Silva-Souza N. Alterations in blood glucose concentration in wild rodents, Holochilus sciureus, naturally infected with Schistosoma mansoni. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA = BRAZILIAN JOURNAL OF VETERINARY PARASITOLOGY : ORGAO OFICIAL DO COLEGIO BRASILEIRO DE PARASITOLOGIA VETERINARIA 2022; 31:e021921. [PMID: 35352759 PMCID: PMC9901889 DOI: 10.1590/s1984-29612022019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 02/25/2022] [Indexed: 11/22/2022]
Abstract
The present study aimed to evaluate the changes in peripheral blood glucose concentrations induced by Schistosoma mansoni infection in Holochilus sciureus rodents, a wild reservoir of the parasite. Glucose concentration was measured in the plasma of blood samples using a colorimetric enzymatic test. Biological parameters and S. mansoni burden in each rodent were also verified and correlated with glucose concentrations. A total of 76 H. sciureus were captured, out of which 20 (26%) were infected with S. mansoni (n=13 males and n=7 females). Although the parasite burden was comparable between the sexes, blood glucose concentration was lower in infected males and almost unchanged in females. Furthermore, histopathological data revealed that male rodents had a greater hepatic granulomatous inflammatory reaction than females. In addition, we also confirmed that the weight and total length of the analyzed animals had no effect on glucose levels. Therefore, natural infection with S. mansoni in H. sciureus may have a lower impact on glycemic homeostasis in females, which will help us understand the role of these rodents as reservoirs of S. mansoni.
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Affiliation(s)
- João Gustavo Mendes Rodrigues
- Programa de Pós-graduação em Parasitologia, Universidade Federal de Minas Gerais – UFMG, Belo Horizonte, MG, Brasil
- Departamento de Química e Biologia, Universidade Estadual do Maranhão – UEMA, São Luís, MA, Brasil
| | - Maria Gabriela Sampaio Lira
- Programa de Pós-graduação em Ciências da Saúde, Universidade Federal do Maranhão – UFMA, São Luís, MA, Brasil
| | - Ranielly Araújo Nogueira
- Programa de Pós-graduação em Ciências da Saúde, Universidade Federal do Maranhão – UFMA, São Luís, MA, Brasil
| | | | - Irlla Correia Lima Licá
- Programa de Pós-graduação em Ciências da Saúde, Universidade Federal do Maranhão – UFMA, São Luís, MA, Brasil
| | | | - Guilherme Silva Miranda
- Programa de Pós-graduação em Parasitologia, Universidade Federal de Minas Gerais – UFMG, Belo Horizonte, MG, Brasil
- Departamento de Biologia, Instituto Federal de Educação, Ciência e Tecnologia do Maranhão, São Raimundo das Mangabeiras, MA, Brasil
| | - Nêuton Silva-Souza
- Departamento de Química e Biologia, Universidade Estadual do Maranhão – UEMA, São Luís, MA, Brasil
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Nardelli MJ, Veiga ZDST, Faria LC, Pereira GHS, da Silva CF, Barbosa FA, Fernandes FF, Perez RDM, Villela-Nogueira CA, Couto CA. Noninvasive predictors of esophageal varices in patients with hepatosplenic schistosomiasis mansoni. Acta Trop 2022; 226:106283. [PMID: 34919950 DOI: 10.1016/j.actatropica.2021.106283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 11/06/2021] [Accepted: 12/11/2021] [Indexed: 11/01/2022]
Abstract
BACKGROUND No previous study have evaluated transient elastography for predicting esophageal varices in hepatosplenic schistosomiasis. AIM To investigate noninvasive methods of predicting esophageal varices in patients with hepatosplenic schistosomiasis mansoni. METHODS Cross-sectional multicentric study included 51 patients with hepatosplenic schistosomiasis. Patients underwent ultrasonography-dopplerfluxometry, upper endoscopy, complete blood cell count and transient elastography (Fibroscan®) for liver and spleen stiffness measurement (LSM and SSM). Noninvasive scores previously established for cirrhotic population were studied: platelet count to spleen diameter ratio (PSR), LSM-spleen diameter to platelet ratio score (LSPS) and varices risk score (VRS). We proposed a version of LSPS and VRS by replacing LSM with SSM and named them SSPS and modified-VRS, respectively. RESULTS Esophageal varices were detected in 42 (82.4%) subjects. Individuals with varices presented higher SSM (73.5 vs 36.3 Kpa, p = 0.001), splenic vein diameter (10.8 vs 8.0 mm, p = 0.017), SSPS (18.7 vs 6.7, p = 0.003) and modified-VRS (4.0 vs 1.4, p = 0.013), besides lower PSR (332 vs 542, p = 0.038), than those without varices. SSPS was independently associated with varices presence (OR=1.19, 95%CI 1.03-1.37, p = 0.020) after multivariate analysis. In a model excluding noninvasive scores, SSM was independently associated with varices diagnosis (OR=1.09, 95%CI 1.03-1.16, p = 0.004). AUROC was 0.856 (95%CI 0.752-0.961, p = 0.001) for SSM and 0.816 (95%CI 0.699-0.932, p = 0.003) for SSPS (p = 0.551). CONCLUSIONS Spleen-related variables were predictors of esophageal varices: SSM, splenic vein diameter, SSPS, modified-VRS and PSR. Multivariate models indicated that SSM and SSPS are useful tools for predicting varices in non-cirrhotic portal hypertension by hepatosplenic schistosomiasis and may be used in clinical practice.
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14
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Clinical Spectrum of Schistosomiasis: An Update. J Clin Med 2021; 10:jcm10235521. [PMID: 34884223 PMCID: PMC8672275 DOI: 10.3390/jcm10235521] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/17/2021] [Accepted: 11/25/2021] [Indexed: 11/18/2022] Open
Abstract
Schistosomiasis is a helminthic infection and one of the neglected tropical diseases (NTDs). It is caused by blood flukes of the genus Schistosoma. It is an important public health problem, particularly in poverty-stricken areas, especially those within the tropics and subtropics. It is estimated that at least 236 million people worldwide are infected, 90% of them in sub-Saharan Africa, and that this disease causes approximately 300,000 deaths annually. The clinical manifestations are varied and affect practically all organs. There are substantial differences in the clinical presentation, depending on the phase and clinical form of schistosomiasis in which it occurs. Schistosomiasis can remain undiagnosed for a long period of time, with secondary clinical lesion. Here, we review the clinical profile of schistosomiasis. This information may aid in the development of more efficacious treatments and improved disease prognosis.
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15
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Opio CK, Kazibwe F, Rejani L, Kabatereine NB, Ocama P. Hepatic schistosomiasis, upper gastrointestinal bleeding, and health related quality of life measurements from the Albert Nile Basin. J Patient Rep Outcomes 2021; 5:112. [PMID: 34718894 PMCID: PMC8557235 DOI: 10.1186/s41687-021-00389-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 10/17/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Health related quality of life measurements are vital elements of public health surveillance that uncover unmet health needs and predict the success of health interventions. We described health related quality of life measurements using the EuroQoL 5-dimension (EQ-VAS/EQ-5D) instrument and associated factors among patients with upper gastrointestinal bleeding (UGIB) and hepatic schistosomiasis at a rural health facility in the Albert Nile Basin, Uganda. METHODS AND MATERIALS This was a cross-sectional study at Pakwach Health Centre IV. Participants included adult inpatients and outpatients with a history of UGIB and ultrasound evidence of hepatic schistosomiasis. We evaluated and recorded each participant's medical history, physical examination, laboratory tests results, ultrasound results, and endoscopy findings. We also recorded health related quality of life measurements using the EuroQoL 5-dimension instrument and derived disability weights from EQ-VAS and EQ-5D measurements. These were our dependent variables. Descriptive and inferential statistics were generated summarizing our findings. RESULTS We found 103 participants had a history of upper gastrointestinal bleeding and hepatosplenic schistosomiasis. Sixty percent were between the ages of 30-49 years, 59% were females, 74% were farmers, 92% had splenomegaly, 88% had varices at endoscopy, 22% were medical emergencies with acute variceal upper gastrointestinal bleeding, and 62% had anemia. Measures of the different dimensions of health from 101 participants with patient reported outcomes revealed 77 (76%) participants experienced problems in self-care, 89 (88%) participants reported anxiety or depression, and 89 (88%) participants experienced pain or discomfort. The median EQ-VAS derived disability weights and median EQ-5D index-derived disability weights were 0.3 and 0.34, respectively. Acute upper gastrointestinal bleeding, praziquantel drug treatment, and age by decade predicted higher EQ-VAS derived disability weights (p value < 0.05). Under weight (Body mass index ≤ 18.5), acute upper gastrointestinal bleeding, ascites, age by decade, female gender, and praziquantel drug treatment predicted higher EQ-5D index- derived disability weights (p value < 0.05). CONCLUSION Adult patients with upper gastrointestinal bleeding and hepatic schistosomiasis from this primary health facility experience poor health and considerable health loss. Several factors predicted increased health loss. These factors probably represent key areas of health intervention towards mitigating increased health loss in this population.
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Affiliation(s)
- Christopher K. Opio
- Aga Khan University Hospital, 3rd Parkland Avenue, PO Box 30270-00100, Nairobi, Kenya
| | - Francis Kazibwe
- Public Health Department, Bishop Stuart University, PO Box 9, Mbarara, Uganda
| | - Lalitha Rejani
- Makerere University College of Health Sciences, PO Box 7072, Kampala, Uganda
| | | | - Ponsiano Ocama
- Makerere University College of Health Sciences, PO Box 7072, Kampala, Uganda
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16
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Profiro de Oliveira JH, Arruda IES, Izak Ribeiro de Araújo J, Chaves LL, de La Rocca Soares MF, Soares-Sobrinho JL. Why do few drug delivery systems to combat neglected tropical diseases reach the market? An analysis from the technology's stages. Expert Opin Ther Pat 2021; 32:89-114. [PMID: 34424127 DOI: 10.1080/13543776.2021.1970746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Many drugs used to combat schistosomiasis, Chagas disease, and leishmaniasis (SCL) have clinical limitations such as: high toxicity to the liver, kidneys and spleen; reproductive, gastrointestinal, and heart disorders; teratogenicity. In this sense, drug delivery systems (DDSs) have been described in the literature as a viable option for overcoming the limitations of these drugs. An analysis of the level of development (TRL) of patents can help in determine the steps that must be taken for promising technologies to reach the market. AREAS COVERED This study aimed to analyze the stage of development of DDSs for the treatment of SCL described in patents. In addition, we try to understand the main reasons why many DDSs do not reach the market. In this study, we examined DDSs for drugs indicated by WHO and treatment of SCL, by performing a search for patents. EXPERT OPINION In this present work we provide arguments that support the hypothesis that there is a lack of integration between academia and industry to finance and continue research, especially the development of clinical studies. We cite the translational research consortia as the potential alternative for developing DDSs to combat NTDs.
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Affiliation(s)
| | | | | | - Luise Lopes Chaves
- Department of Pharmacy, Federal University of Pernambuco, Recife, Recife-Pernambuco
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Cimini A, Ricci M, Gigliotti PE, Pugliese L, Chiaravalloti A, Danieli R, Schillaci O. Medical Imaging in the Diagnosis of Schistosomiasis: A Review. Pathogens 2021; 10:pathogens10081058. [PMID: 34451522 PMCID: PMC8401107 DOI: 10.3390/pathogens10081058] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/14/2021] [Accepted: 08/18/2021] [Indexed: 12/15/2022] Open
Abstract
Schistosomiasis is one of the most important parasitic diseases and it is endemic in tropical and subtropical areas. Clinical and laboratory data are fundamental for the diagnosis of schistosomiasis, but diagnostic imaging techniques such as x-rays, ultrasound (US), computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography/computed tomography (PET/CT) may be helpful in the evaluation of disease severity and complications. In this context, the aim of this review is to explore the actual role of diagnostic imaging in the diagnosis of schistosomiasis, underlining advantages and drawbacks providing information about the utilization of diagnostic imaging techniques in this context. Furthermore, we aim to provide a useful guide regarding imaging features of schistosomiasis for radiology and nuclear medicine physicians of non-endemic countries: in fact, in the last years non-endemic countries have experienced important flows of migrants from endemic areas, therefore it is not uncommon to face cases of this disease in daily practice.
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Affiliation(s)
- Andrea Cimini
- Department of Biomedicine and Prevention, University Tor Vergata, Via Cracovia 50, 00133 Rome, Italy; (M.R.); (P.E.G.); (L.P.); (A.C.); (O.S.)
- Correspondence: ; Tel.: +39-(06)-20902467
| | - Maria Ricci
- Department of Biomedicine and Prevention, University Tor Vergata, Via Cracovia 50, 00133 Rome, Italy; (M.R.); (P.E.G.); (L.P.); (A.C.); (O.S.)
| | - Paola Elda Gigliotti
- Department of Biomedicine and Prevention, University Tor Vergata, Via Cracovia 50, 00133 Rome, Italy; (M.R.); (P.E.G.); (L.P.); (A.C.); (O.S.)
| | - Luca Pugliese
- Department of Biomedicine and Prevention, University Tor Vergata, Via Cracovia 50, 00133 Rome, Italy; (M.R.); (P.E.G.); (L.P.); (A.C.); (O.S.)
- Department of Radiology, San Giovanni Calibita Fatebenefratelli Hospital, Via di Ponte di Quattro Capi 39, 00186 Rome, Italy
| | - Agostino Chiaravalloti
- Department of Biomedicine and Prevention, University Tor Vergata, Via Cracovia 50, 00133 Rome, Italy; (M.R.); (P.E.G.); (L.P.); (A.C.); (O.S.)
- Nuclear Medicine Section, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Neuromed, Via Atinense 18, 86077 Pozzilli, Italy
| | - Roberta Danieli
- Department of Human Sciences and Promotion of the Quality of Life, University San Raffaele, Via di Val Cannuta 247, 00166 Rome, Italy;
| | - Orazio Schillaci
- Department of Biomedicine and Prevention, University Tor Vergata, Via Cracovia 50, 00133 Rome, Italy; (M.R.); (P.E.G.); (L.P.); (A.C.); (O.S.)
- Nuclear Medicine Section, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Neuromed, Via Atinense 18, 86077 Pozzilli, Italy
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Roriz SJ, Pereira TA, Vaz de Melo Trindade G, Caporali JFDM, Lambertucci JR. Quality of Life Assessment Among Patients Living With Hepatosplenic Schistosomiasis and Schistosomal Myeloradiculopathy. Front Med (Lausanne) 2021; 8:629484. [PMID: 34141713 PMCID: PMC8203918 DOI: 10.3389/fmed.2021.629484] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 05/10/2021] [Indexed: 12/12/2022] Open
Abstract
Schistosomiasis is a major public health problem in tropical areas of the world. Health-related quality of life (HRQOL) measurement is being widely used to evaluate the impact of a disease or treatment in several aspects of daily life. However, few studies evaluated the impact of severe forms of schistosomiasis on HRQOL of affected individuals and compared them to healthy controls with a similar socio-demographic background. Our aims were to evaluate the HRQOL in patients with hepatosplenic schistosomiasis (HS) and schistosomal myeloradiculopathy (SMR) and healthy volunteers (HV) and determine if clinical complications of the disease are associated with HRQOL scores. We interviewed and evaluated the HRQOL in 49 patients with HS, 22 patients with SMR, and 26 HV from an outpatient clinic of the Federal University of Minas Gerais University Hospital using the WHOQOL-BREF questionnaire. SMR and HS patients had a significantly lower overall quality of life score when comparing with the HV control group (p = 0.003 and p = 0.005, respectively). Multivariate ordinal regression model adjusted for sex, age, and educational level indicated that HS and SMR patients have three and five times more chances of having a lower quality of life than healthy volunteers (Odds Ratio 3.13 and 5.04, respectively). There was no association between complications of HS disease and quality of life scores. In contrast, worse quality of life was observed in SMR patients that presented back or leg pain, leg paresthesia, and bladder dysfunction. In conclusion, HS and SMR significantly impact the overall quality of life of the affected individuals, reinforcing the importance of efforts to control and eradicate this debilitating disease and suggesting that multidisciplinary clinical management of schistosomiasis patients would be more appropriate and could potentially improve patient's quality of life.
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Affiliation(s)
- Silvana Júnia Roriz
- Graduate Program in Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Thiago Almeida Pereira
- Graduate Program in Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Guilherme Vaz de Melo Trindade
- Graduate Program in Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Physiology, School of Medicine, National University of Ireland, Galway, Galway, Ireland
| | - Júlia Fonseca de Morais Caporali
- Graduate Program in Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Department of Internal Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - José Roberto Lambertucci
- Graduate Program in Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Department of Internal Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil
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Barreto AVMS, Domingues ALC, Diniz GTN, Cavalcanti AMS, Lopes EP, Montenegro SML, Morais CNL. The Coutinho index as a simple tool for screening patients with advanced forms of Schistosomiasis mansoni: a validation study. Trans R Soc Trop Med Hyg 2021; 116:19-25. [PMID: 33728455 DOI: 10.1093/trstmh/trab040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 01/07/2021] [Accepted: 02/24/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Periportal fibrosis (PPF) is the major pathological consequence of Schistosoma mansoni infection. The Coutinho index-the alkaline phosphatase (ALP) to platelet ratio ([ALP/upper limit of normality {ULN}]/platelet count [106/L] x 100)-was validated. Validation consisted of modest laboratory tests to predict advanced PPF. METHODS A total of 378 individuals from an endemic area of Brazil with a previous history of the disease and/or a positive parasitological examination were evaluated. We used ultrasound examination as the gold standard for classification of the PPF pattern and measured the biological markers of the index. RESULTS Forty-one individuals (10.8%) without PPF, 291 (77%) with moderate PPF and 46 (12.2%) with advanced PPF, were identified. ALP and platelet count were used for the index. The cut-off point ≥0.228 predicted the presence of fibrosis with an area under the receiver operating characteristic curve (AUROC) of 0.56, sensitivity of 68.6% and specificity of 46.3%. There was an absence of PPF in 46.3% of individuals without fibrosis and the presence of PPF in 68.5% of cases with moderate and advanced ultrasound fibrosis. The identification of advanced fibrosis with a cut-off point ≥0.316 revealed an AUROC curve of 0.70, sensitivity of 67.4% and specificity of 68.3%, thus confirming the advanced phase in 65.2% of cases compared with ultrasound. CONCLUSION The Coutinho index was able to predict advanced PPF in most individuals. It is valid as a new tool, uses routine laboratory tests and therefore is more accessible for screening patients with a severe form of the disease in endemic areas.
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Affiliation(s)
- Ana V M S Barreto
- Instituto Aggeu Magalhães, Fundação Oswaldo Cruz, Recife-Pernambuco, 50670-420, Brasil
| | - Ana L C Domingues
- Centro de Ciências Médicas, Universidade Federal de Pernambuco, Recife-Pernambuco, 50670-901, Brasil
| | - George T N Diniz
- Instituto Aggeu Magalhães, Fundação Oswaldo Cruz, Recife-Pernambuco, 50670-420, Brasil
| | - Ana M S Cavalcanti
- Laboratório Central de Saúde Pública, Secretaria Estadual de Saúde, Recife-Pernambuco, 52171-011, Brasil
| | - Edmundo P Lopes
- Centro de Ciências Médicas, Universidade Federal de Pernambuco, Recife-Pernambuco, 50670-901, Brasil
| | - Silvia M L Montenegro
- Instituto Aggeu Magalhães, Fundação Oswaldo Cruz, Recife-Pernambuco, 50670-420, Brasil
| | - Clarice N L Morais
- Instituto Aggeu Magalhães, Fundação Oswaldo Cruz, Recife-Pernambuco, 50670-420, Brasil
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20
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Silva CF, Nardelli MJ, Barbosa FA, Galizzi HO, Cal TCMF, Ferrari TCA, Faria LC, Couto CA. Liver stiffness is able to differentiate hepatosplenic Schistosomiasis mansoni from liver cirrhosis and spleen stiffness may be a predictor of variceal bleeding in hepatosplenic schistosomiasis. Trans R Soc Trop Med Hyg 2021; 116:26-33. [PMID: 33728472 DOI: 10.1093/trstmh/trab041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/18/2021] [Accepted: 03/09/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Ultrasonography is limited for differentiating portal hypertension due to liver cirrhosis from that secondary to hepatosplenic schistosomiasis (HSS). We aimed to investigate the role of transient elastography (TE) in differentiating HSS mansoni from cirrhosis and the factors associated with liver and spleen stiffness (LS and SS) in HSS. METHOD A cross-sectional study was conducted including patients with HSS mansoni (n=29) and liver cirrhosis due to non-alcoholic steatohepatitis (n=23). All patients underwent TE and those with HSS were assessed by the Niamey protocol. RESULTS HSS subjects presented lower median LS (9.6 vs 21.3 Kpa, p<0.001) and liver controlled attenuation parameter (229 vs 274 dB/m, p=0.010) than cirrhosis subjects, in addition to higher SS (73.5 vs 42.2 Kpa, p=0.002). The area under the receiver operating characteristic curve for detecting cirrhosis by LS was 0.947 (95% CI 0.89 to 1.00, p<0.001), with an optimal cut-off of 11.75 Kpa. In HSS subjects, higher SS was associated with the presence of the following: diabetes mellitus (p=0.036), metabolic syndrome (p=0.043), esophageal varices (p=0.001), portal vein thrombosis (p=0.047) and previous variceal bleeding (p=0.011). In HSS patients without portal vein thrombosis, variceal bleeding was associated with higher SS (p=0.018). Niamey categories were not associated with LS (p=0.676) or SS (p=0.504). CONCLUSION TE can play a role in differentiating HSS from cirrhosis, especially by LS. SS may be further investigated for predicting complications in HSS.
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Affiliation(s)
- Catherine F Silva
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Prof. Alfredo Balena 190, 30130-100, Belo Horizonte, Brazil
| | - Mateus J Nardelli
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Prof. Alfredo Balena 190, 30130-100, Belo Horizonte, Brazil
| | - Fernanda A Barbosa
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Prof. Alfredo Balena 190, 30130-100, Belo Horizonte, Brazil
| | - Humberto O Galizzi
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Prof. Alfredo Balena 190, 30130-100, Belo Horizonte, Brazil
| | - Tereza C M F Cal
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, 31270-901, Belo Horizonte, Brazil
| | - Teresa C A Ferrari
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Prof. Alfredo Balena 190, 30130-100, Belo Horizonte, Brazil.,Instituto Alfa de Gastroenterologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Av. Prof. Alfredo Balena 110, 30130-100, Belo Horizonte, Brazil
| | - Luciana C Faria
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Prof. Alfredo Balena 190, 30130-100, Belo Horizonte, Brazil.,Instituto Alfa de Gastroenterologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Av. Prof. Alfredo Balena 110, 30130-100, Belo Horizonte, Brazil
| | - Claudia A Couto
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Prof. Alfredo Balena 190, 30130-100, Belo Horizonte, Brazil.,Instituto Alfa de Gastroenterologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Av. Prof. Alfredo Balena 110, 30130-100, Belo Horizonte, Brazil
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21
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Vaz de Melo Trindade G, Pereira TA, Caporali JFDM, Vaz de Melo Trindade D, Roriz SJ, Donado Vaz de Melo P, Lambertucci JR. EDTA-dependent pseudothrombocytopenia in patients with hepatosplenic schistosomiasis mansoni: a clinical management alert. Trans R Soc Trop Med Hyg 2021; 115:1168-1173. [PMID: 33690852 DOI: 10.1093/trstmh/trab034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/17/2021] [Accepted: 02/15/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Hepatosplenic schistosomiasis mansoni (HS) is associated with thrombocytopenia. Accurate platelet counts are required for identification and management of HS patients. EDTA-dependent pseudothrombocytopenia (EDTA-PTCP) is an in vitro phenomenon of anticoagulant-activated platelet agglutination resulting in low platelet counts by automated methods. The prevalence of EDTA-PCTP in schistosomiasis is unknown and only one case has been described. Our aims were to determine the prevalence of EDTA-PTCP in HS and evaluate alternative methods to overcome this analytical error. METHODS Blood samples from 56 HS patients and 56 healthy volunteers were collected, and platelet counts were obtained using standard microscopy and automated (electric impedance) methods. Automated platelet counts and the presence of platelet clumps in blood smears were evaluated in samples collected in EDTA or sodium citrate tubes 20 and 180 min after blood collection. RESULTS EDTA-PTCP was more frequent in HS patients than healthy volunteers (8.92% vs 0.00%, p<0.0285). Platelet clumps and PTCP were also observed in samples collected in sodium citrate tubes, refuting its use as an alternative method. CONCLUSIONS Automated platelet counts in blood samples from HS patients should be performed right after blood collection in EDTA tubes and verified by manual counts in blood smears.
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Affiliation(s)
- Guilherme Vaz de Melo Trindade
- Graduate Program in Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, MG, 30130-100, Brazil
| | - Thiago Almeida Pereira
- Graduate Program in Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, MG, 30130-100, Brazil
| | - Júlia Fonseca de Morais Caporali
- Graduate Program in Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, MG, 30130-100, Brazil.,Department of Internal Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, MG, 30130-100, Brazil
| | | | - Silvana Junia Roriz
- Graduate Program in Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, MG, 30130-100, Brazil
| | | | - José Roberto Lambertucci
- Graduate Program in Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, MG, 30130-100, Brazil.,Department of Internal Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, MG, 30130-100, Brazil
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22
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Cançado GGL, Nardelli MJ, Barbosa FA, Silva CF, Osório FMF, Ferrari TCA, Couto CA, Faria LC. Portal vein thrombosis in patients with hepatosplenic schistosomiasis who underwent oesophagogastric devascularization combined with splenectomy. Trans R Soc Trop Med Hyg 2021; 115:1004-1009. [PMID: 33537723 DOI: 10.1093/trstmh/trab013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 09/04/2020] [Accepted: 01/13/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Portal vein thrombosis (PVT) has been described in nearly 50% of patients who underwent oesophagogastric devascularization combined with splenectomy (EGDS), but no previous study has compared its occurrence in surgical and non-surgical groups. This study aimed to investigate PVT in hepatosplenic schistosomiasis (HSS) and its association with EGDS and upper variceal bleeding (UVB). METHODS Retrospectively, 104 HSS individuals were enrolled. Following EGDS, the occurrence of PVT, mesenteric vein thrombosis (MVT), hospital admissions and UVB were recorded. RESULTS EGDS was performed in 27 (26%) patients. PVT and MVT were detected in 30 (33%) and 8 (9.8%) patients, respectively. Patients who underwent EGDS were at greater risk of PVT (63% vs 19.7%; odds ratio [OR] 6.12 [95% confidence interval {CI} 2.3 to 16.1], p<0.001) when compared with a non-surgical approach. There was no significant difference in UVB occurrence and β-blocker usage. PVT was associated with more hospital admissions (p=0.030) and higher alkaline phosphatase levels (p=0.008). UVB occurrence in patients with and without thrombosis was similar. In multivariate analysis, after adjustment, PVT was associated with the surgical approach (OR 4.56 [95% CI 1.55 to 13.38], p=0.006) and age at HSS diagnosis (OR 0.94 [95% CI 0.90 to 0.99], p=0.021). CONCLUSIONS EGDS was not associated with a decreased frequency of UVB when compared with the non-surgical approach but was an independent risk factor for PVT.
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Affiliation(s)
- Guilherme G L Cançado
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Av. Professor Alfredo Balena 110, 30130-100, Belo Horizonte, Brazil.,Department of Gastroenterology and Hepatology, Hospital da Polícia Militar de Minas Gerais, Belo Horizonte, Brazil
| | - Mateus J Nardelli
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Fernanda A Barbosa
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Catherine F Silva
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Fernanda M F Osório
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Av. Professor Alfredo Balena 110, 30130-100, Belo Horizonte, Brazil
| | - Teresa C A Ferrari
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Claudia A Couto
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Av. Professor Alfredo Balena 110, 30130-100, Belo Horizonte, Brazil.,Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luciana C Faria
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Av. Professor Alfredo Balena 110, 30130-100, Belo Horizonte, Brazil.,Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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23
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Pereira TA, Vaz de Melo Trindade G, Trindade Santos E, Pereira FEL, Souza MMD. Praziquantel pharmacotherapy reduces systemic osteopontin levels and liver collagen content in murine schistosomiasis mansoni. Int J Parasitol 2021; 51:437-440. [PMID: 33493521 DOI: 10.1016/j.ijpara.2020.11.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/04/2020] [Accepted: 11/06/2020] [Indexed: 12/29/2022]
Abstract
The pathogenesis of schistosomiasis and the mechanism of disease regression after Praziquantel pharmacotherapy are not fully elucidated. Schistosoma mansoni egg antigens directly stimulate the expression of the profibrogenic molecule osteopontin (OPN), and systemic OPN levels strongly correlate with disease severity, suggesting its use as a potential morbidity biomarker. In this study, we investigated the impact of Praziquantel use on systemic OPN levels and on liver collagen deposition in chronic murine schistosomiasis. Praziquantel treatment significantly reduced systemic OPN levels and liver collagen deposition, indicating that OPN could be a reliable tool for monitoring PZQ efficacy and fibrosis regression in murine schistosomiasis.
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Affiliation(s)
- Thiago A Pereira
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA; Laboratory of Experimental Pathology, Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Salvador, BA, Brazil.
| | | | - Elisangela Trindade Santos
- Laboratory of Experimental Pathology, Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Salvador, BA, Brazil
| | | | - Márcia Maria de Souza
- Laboratory of Experimental Pathology, Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Salvador, BA, Brazil
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24
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BORGHERESI A, COLLEONI R, SCALABRINI M, SHIGUEOKA D. O ÍNDICE ESPLÊNICO COMO PREDITOR DE SANGRAMENTO E RECIDIVA VARICOSA NO SEGUIMENTO TARDIO DE PACIENTE ESQUISTOSSOMÓTICOS APÓS TRATAMENTO ENDOSCÓPICO EXCLUSIVO. ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA 2021; 34:e1638. [PMID: 35107500 PMCID: PMC8846378 DOI: 10.1590/0102-672020210002e1638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/30/2021] [Indexed: 11/30/2022]
Abstract
Endoscopic treatment for esophageal variceal has been used as the main
intervention in patients with portal hypertension secondary to schistosomiasis,
but with significant rates of recurrence of esophageal variceal and rebleeding.
The long-term results of exclusive endoscopic treatment are poorly studied as
the relationship of the splenic dimensions in this context.
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25
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Opio CK, Kazibwe F, Kabatereine NB, Rejani L, Ocama P. Praziquantel and Upper Gastrointestinal Bleeding in Hepatic Schistosomiasis: A Quasi-Experimental Study. Drugs Real World Outcomes 2020; 8:153-162. [PMID: 33367992 PMCID: PMC8128957 DOI: 10.1007/s40801-020-00222-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/28/2020] [Indexed: 02/07/2023] Open
Abstract
Background There is a general consensus that widespread use of praziquantel in populations where schistosomiasis is endemic prevents development of hepatic schistosomiasis and its complications. However, a few studies have reported discordant findings linking praziquantel to the occurrence of upper gastrointestinal bleeding (UGIB) in some patients with hepatic schistosomiasis and varices. Objective We explored if there was any causal association between recent praziquantel use (rPZQ) and upper gastrointestinal bleeding in hepatic schistosomiasis in rural Africa. Patients and Methods A quasi-experimental, retrospective case-controlled study was performed. It involved adult patients with past or acute UGIB, varices, periportal fibrosis, and/or cirrhosis. Cases had acute variceal bleeding while controls did not. The outcome was the frequency of lifetime episodes of UGIB and exposure was rPZQ (received praziquantel in the last 11 months from the date of enrollment). The data analysis included 2 × 2 tables, logistic regression, and propensity-score matching. Odds ratios (ORs), average treatment effects (ATEs), and their 95% confidence intervals (CIs) were used for inference. Results Over 6 weeks, we enrolled 19 cases with 92 lifetime episodes of UGIB, and 66 controls with 192 lifetime episodes of UGIB. Cases were more likely to experience UGIB than controls following rPZQ (92% vs. 62%; OR 7.6; 95% CI 3.4–17). Factors predictive of more lifetime episodes of UGIB at multivariable analysis included rPZQ (adjusted OR 13; 95% CI 2.9–53), relative leukocytosis (adjusted OR 26; 95% CI 7.6–89), large varices (adjusted OR 5.0; 95% CI 1.7–15), a family member with hepatosplenic schistosomiasis (adjusted OR 19; 95% CI 7.4–51), advanced periportal fibrosis (adjusted OR 8.0; 95% CI 2.6–22), ascites (adjusted OR 14; 95% CI 4.3–47), and jaundice (adjusted OR 32; 95% CI 7.8–128). While the ATE following rPZQ among the treated was 0.40 (95% CI 0.33–0.48). Conclusions Our findings suggest the presence of a plausible causal association between recent praziquantel use and increased frequency of UGIB in our study population. Supplementary Information The online version contains supplementary material available at 10.1007/s40801-020-00222-7.
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Affiliation(s)
| | - Francis Kazibwe
- Public Health Department, Bishop Stuart University, P. O. Box 9, Mbarara, Uganda
| | | | - Lalitha Rejani
- Makerere University College of Health Sciences, P. O. Box 7072, Kampala, Uganda
| | - Ponsiano Ocama
- Makerere University College of Health Sciences, P. O. Box 7072, Kampala, Uganda
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26
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Sibomana JP, Campeche A, Carvalho-Filho RJ, Correa RA, Duani H, Pacheco Guimaraes V, Hilton JF, Kassa B, Kumar R, Lee MH, Loureiro CMC, Mazimba S, Mickael C, Oliveira RKF, Ota-Arakaki JS, Rezende CF, Silva LCS, Sinkala E, Ahmed HY, Graham BB. Schistosomiasis Pulmonary Arterial Hypertension. Front Immunol 2020; 11:608883. [PMID: 33362796 PMCID: PMC7758287 DOI: 10.3389/fimmu.2020.608883] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/03/2020] [Indexed: 12/18/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a disease of the lung blood vessels that results in right heart failure. PAH is thought to occur in about 5% to 10% of patients with hepatosplenic schistosomiasis, particularly due to S. mansoni. The lung blood vessel injury may result from a combination of embolization of eggs through portocaval shunts into the lungs causing localized Type 2 inflammatory response and vessel remodeling, triggering of autonomous pathology that becomes independent of the antigen, and high cardiac output as seen in portopulmonary hypertension. The condition is likely underdiagnosed as there is little systematic screening, and risk factors for developing PAH are not known. Screening is done by echocardiography, and formal diagnosis requires invasive right heart catheterization. Patients with Schistosoma-associated PAH show reduced functional capacity and can be treated with pulmonary vasodilators, which improves symptoms and may improve survival. There are animal models of this disease that might help in understanding disease pathogenesis and identify novel targets to screen and treatment. Pathogenic mechanisms include Type 2 immunity and activation and signaling in the TGF-β pathway. There are still major uncertainties regarding Schistosoma-associated PAH development, course and treatment.
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Affiliation(s)
- Jean Pierre Sibomana
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Tikur Anbessa Specialized Hospital, College of Health Sciences, University of Addis Ababa, Addis Ababa, Ethiopia
- Department of Medicine, Butare University Teaching Hospital, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda
| | - Aloma Campeche
- Division of Gastroenterology, Department of Medicine, Santa Casa Hospital, Salvador, Bahia, Brazil
| | - Roberto J. Carvalho-Filho
- Division of Gastroenterology, Department of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - Ricardo Amorim Correa
- Internal Medicine/Pulmonary Division, Medical School, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Helena Duani
- Internal Medicine/Infectious Diseases Division, Medical School, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Virginia Pacheco Guimaraes
- Pulmonary Department, Hospital Júlia Kubistchek, Fundação Hospitalar of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Joan F. Hilton
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, United States
| | - Biruk Kassa
- Department of Medicine, University of California San Francisco, San Francisco, CA, United States
- Department of Medicine, Zuckerberg San Francisco General Hospital, San Francisco, CA, United States
| | - Rahul Kumar
- Department of Medicine, University of California San Francisco, San Francisco, CA, United States
- Department of Medicine, Zuckerberg San Francisco General Hospital, San Francisco, CA, United States
| | - Michael H. Lee
- Department of Medicine, University of California San Francisco, San Francisco, CA, United States
- Department of Medicine, Zuckerberg San Francisco General Hospital, San Francisco, CA, United States
| | | | - Sula Mazimba
- Division of Cardiology, Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Claudia Mickael
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Rudolf K. F. Oliveira
- Division of Respiratory Diseases, Department of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - Jaquelina S. Ota-Arakaki
- Division of Respiratory Diseases, Department of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - Camila Farnese Rezende
- Pulmonary Medicine, Hospital das Clinicas, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Luciana C. S. Silva
- Internal Medicine Department, Medical School, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Edford Sinkala
- Hepatology Clinic, Department of Medicine, University of Zambia Teaching Hospital, Lusaka, Zambia
| | - Hanan Yusuf Ahmed
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Tikur Anbessa Specialized Hospital, College of Health Sciences, University of Addis Ababa, Addis Ababa, Ethiopia
| | - Brian B. Graham
- Department of Medicine, University of California San Francisco, San Francisco, CA, United States
- Department of Medicine, Zuckerberg San Francisco General Hospital, San Francisco, CA, United States
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27
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Veiga ZST, Perazzo H, Fernandes FF, Pereira GH, Cavalcanti MG, Peralta JM, Perez RM, Villela-Nogueira CA. 2-D Shear Wave Elastography for the Evaluation of Liver Fibrosis in Hepatosplenic Schistosomiasis: Reliability of a Single Measurement and Inter-Hepatic Lobe Variability. Am J Trop Med Hyg 2020; 104:712-717. [PMID: 33245042 DOI: 10.4269/ajtmh.20-0032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 10/11/2020] [Indexed: 12/12/2022] Open
Abstract
Data on liver and spleen stiffness by 2-D shear wave elastography (2-D SWE) in hepatosplenic schistosomiasis (HES) remain scarce. We aimed to assess the correlation between single to multiple measurements of liver and spleen stiffness and to evaluate inter-hepatic lobe variability of liver stiffness measurement (LSM) using 2-D SWE in HES patients. Liver and spleen elastography were performed in HES patients in this cross-sectional study. A total of four stiffness measurements were performed in the right lobe (RL), left lobe (LL), and spleen. The correlation between the first measurement and the median of four measurements was assessed. Liver stiffness measurement of both hepatic lobes was compared. Twenty-six HES patients were included. Liver stiffness measurement was higher in the left than in the right hepatic lobe (17.9 kPa [11.3-92.0] versus 14.9 kPa [5.6-44.4]; P = 0.019). The first measurement was similar to the median of the four measurements for the RL (14.6 [5.6-60.8] versus 14.9 kPa [5.6-44.4]; P = 0.87), LL (17.4 [8.0-128.1] versus 17.9 kPa [11.3-92.0]; P = 0.54), and spleen (50.5 [10.0-157.0] versus 55.7 kPa [19.1-119.4]; P = 0.48). An excellent correlation between the first measurement and the median of four measurements for the RL (r = 0.93; P < 0.001), LL (r = 0.88; P < 0.001), and spleen (r = 0.89; P < 0.001) was observed. In HES, LSM of the LL seems to be higher than that of the right hepatic lobe. Considering the excellent correlation between the first measurement and the median of four measurements in both hepatic lobes and spleen, a single measurement would be sufficient to evaluate liver and splenic stiffness in patients with HES.
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Affiliation(s)
- Zulane S T Veiga
- Gastroenterology Department, Bonsucesso Federal Hospital, Rio de Janeiro, Brazil
| | - Hugo Perazzo
- Laboratory of Clinical Research on STD/AIDS, Evandro Chagas National Institute of Infectious Disease (INI) - Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Flávia F Fernandes
- Gastroenterology Department, Bonsucesso Federal Hospital, Rio de Janeiro, Brazil
| | - Gustavo H Pereira
- Gastroenterology Department, Bonsucesso Federal Hospital, Rio de Janeiro, Brazil
| | - Marta G Cavalcanti
- Infectious Diseases Clinics, University Hospital Clementino Fraga Filho/Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - José M Peralta
- Department of Immunology, Institute of Microbiology Paulo de Goes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Renata M Perez
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil.,Gastroenterology Department, University of the State of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
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28
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Norman FF, Chamorro S, Comeche B, Pérez-Molina JA, López-Vélez R. Update on the major imported helminth infections in travelers and migrants. Future Microbiol 2020; 15:437-444. [PMID: 32250168 DOI: 10.2217/fmb-2019-0273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Helminth infections cause considerable morbidity worldwide and may be frequently underdiagnosed especially in areas of lower endemicity. Patients may harbor latent infections that may become symptomatic years or decades after the initial exposure and timely diagnosis may be critical to prevent complications and improve outcomes. In this context, disease in special populations, such as immunosuppressed patients, may be of particular concern. Heightened awareness and recent diagnostic developments may contribute to the correct management of helminth infections in nonendemic regions. A review of the main helminth infections in travelers and migrants (strongyloidiasis, taeniasis-neurocysticercosis and schistosomiasis) is presented, focusing on epidemiology, developments in diagnosis, treatment and prevention.
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Affiliation(s)
- F F Norman
- National Referral Unit for Tropical Diseases, Infectious Diseases Department, Ramón y Cajal University Hospital, IRYCIS, Ctra Colmenar, Km 9100, 28034 Madrid, Spain
| | - S Chamorro
- National Referral Unit for Tropical Diseases, Infectious Diseases Department, Ramón y Cajal University Hospital, IRYCIS, Ctra Colmenar, Km 9100, 28034 Madrid, Spain
| | - B Comeche
- National Referral Unit for Tropical Diseases, Infectious Diseases Department, Ramón y Cajal University Hospital, IRYCIS, Ctra Colmenar, Km 9100, 28034 Madrid, Spain
| | - J A Pérez-Molina
- National Referral Unit for Tropical Diseases, Infectious Diseases Department, Ramón y Cajal University Hospital, IRYCIS, Ctra Colmenar, Km 9100, 28034 Madrid, Spain
| | - R López-Vélez
- National Referral Unit for Tropical Diseases, Infectious Diseases Department, Ramón y Cajal University Hospital, IRYCIS, Ctra Colmenar, Km 9100, 28034 Madrid, Spain
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Marinho CC, Nicolato AJPG, Reis VW, Dos Santos RC, Silva JC, Faria HP, Machado-Coelho GLL. Ultrasound evaluation of schistosomiasis-related morbidity among the Xakriabá people in the state of Minas Gerais, Brazil. Radiol Bras 2020; 53:7-13. [PMID: 32313330 PMCID: PMC7159047 DOI: 10.1590/0100-3984.2019.0047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Objective To use ultrasound to investigate the morbidity related to schistosomiasis in the Xakriabá indigenous population. Materials and Methods This was a field-based census study conducted in the territory of the Xakriabá people. A total of 166 individuals were invited, and 148 (≤ 77 years of age) agreed to participate. Most participants underwent abdominal ultrasound, physical examination, and stool examination. Mann-Whitney U and chi-square tests were used for comparisons. We determined risk by calculating odds ratio (OR) and performed logistic regression analysis. Results Schistosoma mansoni eggs were found in 31 (26.7%) of the 116 stool samples examined, 22 (70.9%) of the 31 being from individuals 4-16 years of age. The median count was 144 eggs/g of feces (interquartile range, 264). Of the 105 participants examined with ultrasound, 68 (64.8%) had hepatomegaly (left lobe), 6 (5.7%) had splenomegaly, and 4 (3.8%) had portal hypertension. Egg-positive stool samples were more common in those with an enlarged left lobe (OR = 3.4; 95% confidence interval (CI): 1.1-11.2; p = 0.043). Periportal fibrosis was found in 30 participants (28.6%), of whom 9 (30%) had pattern C, 10 (33.3%) had pattern D, and 11 (36.7%) had pattern Dc. Age was the only independent risk factor for fibrosis (p = 0.007). Fibrosis was up to nine-fold more common in alcohol drinkers than in nondrinkers (OR = 9.28; 95% CI: 2.60-33.06; p < 0.001). Among the 138 participants in whom the clinical form was classified, the chronic hepatic form was identified in 54 (39.1%), of whom 32 (59.2%) were under 30 years of age and one (1.8%) was hepatosplenic. Conclusion Schistosomiasis in the Xakriabá population is characterized by a high frequency of egg-positive stool samples, predominantly in children/adolescents, and by chronic hepatic form in the young, especially among alcohol drinkers.
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Affiliation(s)
| | | | | | | | - Jaime Costa Silva
- Ministério da Saúde, Fundação Nacional de Saúde (Funasa), Brasília, DF, Brazil
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Clinical and Preclinical Imaging of Hepatosplenic Schistosomiasis. Trends Parasitol 2019; 36:206-226. [PMID: 31864895 DOI: 10.1016/j.pt.2019.11.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/22/2019] [Accepted: 11/30/2019] [Indexed: 12/12/2022]
Abstract
Schistosomiasis, a neglected tropical disease, is a major cause of chronic morbidity and disability, and premature death. The hepatosplenic form of schistosomiasis is characterized by hepatosplenomegaly, liver fibrosis, portal hypertension, and esophageal varices, whose rupture may cause bleeding and death. We review currently available abdominal imaging modalities and describe their basic principles, strengths, weaknesses, and usefulness in the assessment of hepatosplenic schistosomiasis (HSS). Advanced imaging methods are presented that could be of interest for hepatosplenic schistosomiasis evaluation by yielding morphological, functional, and molecular parameters of disease progression. We also provide a comprehensive view of preclinical imaging studies and current research objectives such as parasite visualization in hosts, follow-up of the host's immune response, and development of noninvasive quantitative methods for liver fibrosis assessment.
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Marchese V, Beltrame A, Angheben A, Marocco S, Gaeta GB, Bisoffi Z. The impact of schistosomiasis co-infection in the presentation of viral hepatitis B in migrants: An observational study in non-endemic area. Travel Med Infect Dis 2019; 35:101467. [PMID: 31449881 DOI: 10.1016/j.tmaid.2019.101467] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 06/30/2019] [Accepted: 08/22/2019] [Indexed: 01/25/2023]
Abstract
BACKGROUND In Europe, the prevalence rates of schistosomiasis and HBV infection in migrants from sub-Saharan Africa are high. The co-infection schistosomiasis-HBV has been scarcely studied. METHODS This is a retrospective study assessing differences in clinical presentation, laboratory and ultrasound findings in a cohort of migrants admitted at the Department of Infectious - Tropical Diseases and Microbiology IRCCS Sacro Cuore Don Calabria Hospital of Negrar (Northeast Italy) with schistosomiasis, HBV infection or both. RESULTS Of the 227 migrants, 175 (77.1%) with a diagnosis of schistosomiasis were classified as SCHISTO group, 35 (15.4%) with schistosomiasis and hepatitis B were classified as SCHISTO/HBV group, and 17 (7.5%) patients with a diagnosis of HBV infection were classified as HBV group. S. mansoni was found in 47 patients, classified in MANSONI (38/175, 21.7%) or MANSONI/HBV (9/35, 25.7%) group depending on HBsAg status. Mean transaminases and APRI index values were higher in SCHISTO/HBV compared to SCHISTO group (p < 0.01). AST differed between MANSONI/HBV and MANSONI group (p = 0.038). No differences were found between SCHISTO/HBV and HBV group. Eosinophil count and total IgE differed only between MANSONI/HBV and HBV group (p = 0,049). CONCLUSIONS Schistosomiasis seems not to increase the liver damage in people with HBV infection. Conversely, finding elevated transaminases in patients with schistosomiasis should alert for presence of HBV.
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Affiliation(s)
- Valentina Marchese
- Department of Infectious - Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Via Sempreboni 5, 37024, Negrar, Italy; University Department of Infectious and Tropical Diseases & WHO Collaborating Centre for TB/HIV and TB Elimination, University of Brescia, Piazzale Spedali Civili 1, 25123, Brescia, Italy
| | - Anna Beltrame
- Department of Infectious - Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Via Sempreboni 5, 37024, Negrar, Italy.
| | - Andrea Angheben
- Department of Infectious - Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Via Sempreboni 5, 37024, Negrar, Italy
| | - Stefania Marocco
- Department of Infectious - Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Via Sempreboni 5, 37024, Negrar, Italy
| | - Giovanni Battista Gaeta
- Chair of Infectious Diseases, Campania University "Luigi Vanvitelli", Policlinico Via Pansini 5, 8031, Naples, Italy
| | - Zeno Bisoffi
- Department of Infectious - Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Via Sempreboni 5, 37024, Negrar, Italy; Department of Diagnostics and Public Health, University of Verona, Piazzale L.A. Scuro, 37134, Verona, Italy
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Carvalho Santos J, Dória Batista A, Maria Mola Vasconcelos C, Souza Lemos R, Romão de Souza Junior V, Dessein A, Dessein H, Maria Lucena Montenegro S, Pessoa Almeida Lopes E, Lúcia Coutinho Domingues A. Liver ultrasound elastography for the evaluation of periportal fibrosis in schistosomiasis mansoni: A cross-sectional study. PLoS Negl Trop Dis 2018; 12:e0006868. [PMID: 30444885 PMCID: PMC6267962 DOI: 10.1371/journal.pntd.0006868] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 11/30/2018] [Accepted: 09/22/2018] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND ARFI elastrography has been used as a noninvasive method to assess the severity of liver fibrosis in viral hepatitis, although with few studies in schistosomiasis mansoni. We aimed to evaluate the performance of point shear wave elastography (pSWE) for predicting significant periportal fibrosis (PPF) in schistosomotic patients and to determine its best cutoff point. METHODOLOGY/PRINCIPAL FINDINGS This cross-sectional study included 358 adult schistosomotic patients subjected to US and pSWE on the right lobe. Two hundred two patients (62.0%) were women, with a median age of 54 (ranging 18-92) years. The pSWE measurements were compared to the US patterns of PPF, as gold standard, according to the Niamey classification. The performance of pSWE was calculated as the area under the ROC curve (AUC). Patients were further classified into two groups: 86 patients with mild PPF and 272 patients with significant PPF. The median pSWE of the significant fibrosis group was higher (1.40 m/s) than that of mild fibrosis group (1.14 m/s, p<0.001). AUC was 0.719 with ≤1.11 m/s as the best cutoff value for excluding significant PPF. Sensitivity and negative predictive values were 80.5% and 40.5%, respectively. Whereas, for confirming significant PPF, the best cutoff value was >1.39 m/s, with specificity of 86.1% and positive predictive value of 92.0%. CONCLUSIONS/SIGNIFICANCE pSWE was able to differentiate significant from mild PPF, with better performance to predict significant PPF.
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Affiliation(s)
- Joelma Carvalho Santos
- Postgraduate Program in Tropical Medicine, Centro de Ciências da Saúde, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - Andrea Dória Batista
- Hospital das Clínicas, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | | | - Roberto Souza Lemos
- Postgraduate Program in Tropical Medicine, Centro de Ciências da Saúde, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | | | - Alain Dessein
- Faculté de Médecine, Aix-Marseille Université, Marseille, France
| | - Hélia Dessein
- Faculté de Médecine, Aix-Marseille Université, Marseille, France
| | | | - Edmundo Pessoa Almeida Lopes
- Postgraduate Program in Tropical Medicine, Centro de Ciências da Saúde, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
- Hospital das Clínicas, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - Ana Lúcia Coutinho Domingues
- Postgraduate Program in Tropical Medicine, Centro de Ciências da Saúde, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
- Hospital das Clínicas, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
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Machado MV, Diehl AM. Hedgehog signalling in liver pathophysiology. J Hepatol 2018; 68:550-562. [PMID: 29107151 PMCID: PMC5957514 DOI: 10.1016/j.jhep.2017.10.017] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 10/11/2017] [Accepted: 10/18/2017] [Indexed: 12/13/2022]
Abstract
Liver disease remains a leading cause of mortality worldwide despite recent successes in the field of viral hepatitis, because increases in alcohol consumption and obesity are fuelling an epidemic of chronic fatty liver disease for which there are currently no effective medical therapies. About 20% of individuals with chronic liver injury ultimately develop end-stage liver disease due to cirrhosis. Hence, treatments to prevent and reverse cirrhosis in individuals with ongoing liver injury are desperately needed. The development of successful treatments requires an improved understanding of the mechanisms controlling liver disease progression. The liver responds to diverse insults with a conserved wound healing response, suggesting that it might be generally beneficial to optimise pathways that are crucial for effective liver repair. The Hedgehog pathway has emerged as a potential target based on compelling preclinical and clinical data, which demonstrate that it critically regulates the liver's response to injury. Herein, we will summarise evidence of the Hedgehog pathway's role in liver disease and discuss how modulating pathway activity might be applied to improve liver disease outcomes.
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Affiliation(s)
- Mariana Verdelho Machado
- Division of Gastroenterology, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA,Gastroenterology Department, Hospital de Santa Maria, CHLN, Lisbon, Portugal
| | - Anna Mae Diehl
- Division of Gastroenterology, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA.
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Marinho CC, Grobério AC, Silva CTFD, Lima TLFD, Santos RCD, Araújo LGD, Reis VWD, Machado-Coelho GLL. Morbidity of schistosomiasis mansoni in a low endemic setting in Ouro Preto, Minas Gerais, Brazil. Rev Soc Bras Med Trop 2017; 50:805-811. [DOI: 10.1590/0037-8682-0009-2017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 12/14/2017] [Indexed: 11/22/2022] Open
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Gonçalves-Macedo L, Lopes EP, Domingues ALC, Markman B, Mota VG, Luna CF. Schistosomiasis and hepatopulmonary syndrome: the role of concomitant liver cirrhosis. Mem Inst Oswaldo Cruz 2017; 112:469-473. [PMID: 28591307 PMCID: PMC5452483 DOI: 10.1590/0074-02760160383] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 03/13/2017] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Hepatopulmonary syndrome (HPS) is defined as an oxygenation defect induced by intrapulmonary vasodilation in patients with liver disease or portal hypertension. It is investigated in patients with liver cirrhosis and less frequently in those with portal hypertension without liver cirrhosis, as may occur in hepatosplenic schistosomiasis (HSS). OBJECTIVES To investigate the prevalence of HPS in patients with HSS, and to determine whether the occurrence of HPS is influenced by concomitant cirrhosis. METHODS We evaluated patients with HSS with or without concomitant liver cirrhosis. All patients underwent laboratory testing, ultrasound, endoscopy, contrast echocardiography, and arterial blood gas analysis. FINDINGS Of the 121 patients with HSS, 64 were also diagnosed with liver cirrhosis. HPS was diagnosed in 42 patients (35%) and was more frequent among patients with concomitant liver cirrhosis than in those without cirrhosis (42% vs. 26%), but the difference was not significant (p = 0.069). HPS was more common in those with spider naevi, Child-Pugh classes B or C and high model for end stage liver disease (MELD) scores (p < 0.05 each). MAIN CONCLUSIONS The prevalence of HPS was 35% in this study. The occurrence of liver cirrhosis concomitantly with HSS may have influenced the frequency of patients presenting with HPS.
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Affiliation(s)
- Liana Gonçalves-Macedo
- Universidade Federal de Pernambuco, Programa de Pós-Graduação em Medicina Tropical, Recife, PE, Brasil
| | - Edmundo Pessoa Lopes
- Universidade Federal de Pernambuco, Departamento de Medicina Clínica, Serviço de Gastroenterologia e Hepatologia, Recife, PE, Brasil
| | - Ana Lucia Coutinho Domingues
- Universidade Federal de Pernambuco, Departamento de Medicina Clínica, Serviço de Gastroenterologia e Hepatologia, Recife, PE, Brasil
| | - Brivaldo Markman
- Universidade Federal de Pernambuco, Departamento de Medicina Clínica, Serviço de Cardiologia e Ecocardiografia, Recife, PE, Brasil
| | - Vitor Gomes Mota
- Universidade Federal de Pernambuco, Departamento de Medicina Clínica, Serviço de Cardiologia e Ecocardiografia, Recife, PE, Brasil
| | - Carlos Feitosa Luna
- Fundação Oswaldo Cruz-Fiocruz, Laboratório de Métodos Quantitativos em Saúde, Recife, PE, Brasil
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Gouveia LR, Santos JC, Silva RD, Batista AD, Domingues ALC, Lopes EPDA, Silva RO. Diagnosis of coinfection by schistosomiasis and viral hepatitis B or C using 1H NMR-based metabonomics. PLoS One 2017; 12:e0182196. [PMID: 28763497 PMCID: PMC5538707 DOI: 10.1371/journal.pone.0182196] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 07/13/2017] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Diagnosis of liver involvement due to schistosomiasis in asymptomatic patients from endemic areas previously diagnosed with chronic hepatitis B (HBV) or C (HCV) and periportal fibrosis is challenging. H-1 Nuclear Magnetic Resonance (NMR)-based metabonomics strategy is a powerful tool for providing a profile of endogenous metabolites of low molecular weight in biofluids in a non-invasive way. The aim of this study was to diagnose periportal fibrosis due to schistosomiasis mansoni in patients with chronic HBV or HCV infection through NMR-based metabonomics models. METHODOLOGY/PRINCIPAL FINDINGS The study included 40 patients divided into two groups: (i) 18 coinfected patients with schistosomiasis mansoni and HBV or HCV; and (ii) 22 HBV or HCV monoinfected patients. The serum samples were analyzed through H-1 NMR spectroscopy and the models were based on Principal Component Analysis (PCA) and Partial Least Squares-Discriminant Analysis (PLS-DA). Ultrasonography examination was used to ascertain the diagnosis of periportal fibrosis. Exploratory analysis showed a clear separation between coinfected and monoinfected samples. The supervised model built from PLS-DA showed accuracy, R2 and Q2 values equal to 100%, 98.1% and 97.5%, respectively. According to the variable importance in the projection plot, lactate serum levels were higher in the coinfected group, while the signals attributed to HDL serum cholesterol were more intense in the monoinfected group. CONCLUSIONS/SIGNIFICANCE The metabonomics models constructed in this study are promising as an alternative tool for diagnosis of periportal fibrosis by schistosomiasis in patients with chronic HBV or HCV infection from endemic areas for Schistosoma mansoni.
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Affiliation(s)
- Liana Ribeiro Gouveia
- Postgraduate Program in Chemistry, Fundamental Chemistry Department, Center for Exact and Natural Sciences, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - Joelma Carvalho Santos
- Postgraduate Program in Tropical Medicine, Center for Health Sciences, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - Ronaldo Dionísio Silva
- Postgraduate Program in Chemistry, Fundamental Chemistry Department, Center for Exact and Natural Sciences, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - Andrea Dória Batista
- Postgraduate Program in Tropical Medicine, Center for Health Sciences, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
- Department of Internal Medicine, Hospital das Clínicas, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - Ana Lúcia Coutinho Domingues
- Postgraduate Program in Tropical Medicine, Center for Health Sciences, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - Edmundo Pessoa de Almeida Lopes
- Postgraduate Program in Tropical Medicine, Center for Health Sciences, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
- Department of Internal Medicine, Hospital das Clínicas, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - Ricardo Oliveira Silva
- Postgraduate Program in Chemistry, Fundamental Chemistry Department, Center for Exact and Natural Sciences, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
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Ferreira FT, Fidelis TA, Pereira TA, Otoni A, Queiroz LC, Amâncio FF, Antunes CM, Lambertucci JR. Sensitivity and specificity of the circulating cathodic antigen rapid urine test in the diagnosis of Schistosomiasis mansoni infection and evaluation of morbidity in a low- endemic area in Brazil. Rev Soc Bras Med Trop 2017; 50:358-364. [PMID: 28700054 DOI: 10.1590/0037-8682-0423-2016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 05/16/2017] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION: The Kato-Katz technique is the standard diagnostic test for Schistosoma mansoni infection in rural areas. However, the utility of this method is severely limited by the day-to-day variability in host egg excretion in the stool. In high-transmission areas, the point-of-care circulating cathodic antigen (POC-CCA) urine assay has proven to be a reliable test. However, investigations of the reliability of the POC-CCA assay in low-transmission regions are under way. This study aimed to evaluate the sensitivity and specificity of the POC-CCA assay and the morbidity of schistosomiasis in a low-endemic area in Brazil. METHODS: Pains City is a low-transmission zone for schistosomiasis. A total of 300 subjects aged 7-76 years were randomly selected for the POC-CCA cassette test. For S. mansoni diagnosis, three stool samples on six slides were compared with one urine sample for each subject. The sensitivity and specificity in the absence of a gold standard were calculated using latent class analysis. Clinical examinations and abdominal ultrasounds were performed in 181 volunteers to evaluate morbidity associated with schistosomiasis. RESULTS: The sensitivity and specificity of the Kato-Katz technique were 25.6% and 94.6%, respectively. By contrast, the sensitivity and specificity of the POC-CCA assay were 68.1% and 72.8%, respectively. Hepatosplenic schistosomiasis was diagnosed in two patients (1.1%). CONCLUSIONS: Overall, the POC-CCA urine assay proved to be a useful test for diagnosing S. mansoni in a low-endemic area in Brazil. Severe clinical forms of schistosomiasis can be present even in such low-endemic areas.
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Affiliation(s)
- Fernanda Teixeira Ferreira
- Serviço de Doenças Infecciosas e Parasitárias, Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - Thiago André Fidelis
- Serviço de Doenças Infecciosas e Parasitárias, Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - Thiago Almeida Pereira
- Serviço de Doenças Infecciosas e Parasitárias, Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil.,Immunopathogenesis section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Alba Otoni
- Serviço de Doenças Infecciosas e Parasitárias, Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil.,Núcleo de Pesquisas em Epidemiologia e Saúde Coletiva, Universidade Federal de São João del-Rei , Divinópolis, MG, Brasil
| | - Leonardo Campos Queiroz
- Serviço de Doenças Infecciosas e Parasitárias, Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - Frederico Figueiredo Amâncio
- Serviço de Doenças Infecciosas e Parasitárias, Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - Carlos Maurício Antunes
- Instituto de Ensino e Pesquisa, Santa Casa de Misericórdia de Belo Horizonte, Belo Horizonte, MG, Brasil
| | - José Roberto Lambertucci
- Serviço de Doenças Infecciosas e Parasitárias, Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
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Gonçalves-Macedo L, Domingues ALC, Lopes EP, Luna CF, Mota VG, Becker MMDC, Markman-Filho B. Pulmonary shunts in severe hepatosplenic schistosomiasis: Diagnosis by contrast echocardiography and their relationship with abdominal ultrasound findings. PLoS Negl Trop Dis 2017; 11:e0005417. [PMID: 28369056 PMCID: PMC5391128 DOI: 10.1371/journal.pntd.0005417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 04/13/2017] [Accepted: 02/16/2017] [Indexed: 12/31/2022] Open
Abstract
Background Schistosomiasis is endemic to several parts of the world. Among the species that affect humans, Schistosoma mansoni is one of the most common causes of illness. In regions where schistosomiasis mansoni is endemic, reinfection is responsible for the emergence of hepatosplenic schistosomiasis (HSS) with portal hypertension in about 10% of infected individuals. Regardless of its etiology, portal hypertension may bring about the formation of arteriovenous fistulas and pulmonary vascular dilation, thus constituting a pulmonary shunt and its presence has been associated with the occurrence of neurological complications. The objective of this study was to identify pulmonary shunt using TTCE in patients with HSS and esophageal varices, and to compare the abdominal ultrasound and endoscopy findings among patients with and without pulmonary shunt. Methodology/Principal findings In this case series, a total of 461 patients with schistosomiasis mansoni were prospectively evaluated using abdominal ultrasound and endoscopy and 71 presented with HSS with esophageal varices. Fifty seven patients remained in the final analysis. The mean age of the patients was 55 ± 14 years, and 65% were female. Pulmonary shunts were observed in 19 (33.3%) patients. On comparing the groups with and without pulmonary shunt, no significant differences were observed in relation to the abdominal ultrasound and endoscopic findings. When comparing the two subgroups with pulmonary shunts (grade 1 vs grades 2 and 3), it was observed that the subgroup with shunt grades 2 and 3 presented with a significantly higher frequency of an enlarged splenic vein diameter (>0.9 cm), and an advanced pattern of periportal hepatic fibrosis (P = 0.041 and P = 0.005, respectively). None of the patients with pulmonary shunts had severe neurological complications. Conclusions/Significance Our findings suggest that in HSS with esophageal varices the pulmonary shunts may be present in higher grades and that in this condition it was associated with ultrasound findings compatible with advanced HSS. Among the species of Schistosoma that infect humans Schistosoma mansoni is one of the most common causes of illness. In the areas where schistosomiasis mansoni is endemic, around 10% of infected individuals develop hepatosplenic schistosomiasis (HSS) with portal hypertension. Portal hypertension may promotes an imbalance in the hepatic production of vasoactive substances, which may act on the lungs promoting the formation of arteriovenous fistulas and pulmonary vascular dilation, a condition that is called a pulmonary shunt. When the pulmonary shunt is of higher grades, small thrombus or septic emboli that would normally be filtered through the pulmonary capillaries reach the left heart and the systemic circulation, which can lead to neurological complications. We found pulmonary shunts in patients with HSS and esophageal varices and we also found that patients with higher grades of pulmonary shunts presented with a significantly higher frequency of advanced periportal fibrosis and an enlarged splenic vein diameter. No neurological complications were observed. Our findings suggest that pulmonary shunts may be present in patients with HSS and esophageal varices. The abdominal ultrasound findings compatible with advanced HSS could be used as screening to investigate pulmonary shunt.
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Affiliation(s)
- Liana Gonçalves-Macedo
- Graduate Program in Tropical Medicine, Universidade Federal de Pernambuco, Recife, Brazil
- * E-mail:
| | - Ana Lucia Coutinho Domingues
- Department of Clinical Medicine, Universidade Federal de Pernambuco, Recife, Brazil
- Center for Gastroenterology and Hepatology, Universidade Federal de Pernambuco, Recife, Brazil
| | - Edmundo Pessoa Lopes
- Department of Clinical Medicine, Universidade Federal de Pernambuco, Recife, Brazil
- Center for Gastroenterology and Hepatology, Universidade Federal de Pernambuco, Recife, Brazil
| | - Carlos Feitosa Luna
- Laboratory of Quantitative Health Methods, Fundação Oswaldo Cruz (Fiocruz), Recife, Brazil
| | - Vitor Gomes Mota
- Department of Clinical Medicine, Universidade Federal de Pernambuco, Recife, Brazil
- Center for Cardiology and Echocardiography, Universidade Federal de Pernambuco, Recife, Brazil
| | - Mônica Moraes de Chaves Becker
- Department of Clinical Medicine, Universidade Federal de Pernambuco, Recife, Brazil
- Center for Cardiology and Echocardiography, Universidade Federal de Pernambuco, Recife, Brazil
| | - Brivaldo Markman-Filho
- Department of Clinical Medicine, Universidade Federal de Pernambuco, Recife, Brazil
- Center for Cardiology and Echocardiography, Universidade Federal de Pernambuco, Recife, Brazil
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Andrade G, Bertsch DJ, Gazzinelli A, King CH. Decline in infection-related morbidities following drug-mediated reductions in the intensity of Schistosoma infection: A systematic review and meta-analysis. PLoS Negl Trop Dis 2017; 11:e0005372. [PMID: 28212414 PMCID: PMC5333910 DOI: 10.1371/journal.pntd.0005372] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Revised: 03/02/2017] [Accepted: 01/30/2017] [Indexed: 11/21/2022] Open
Abstract
Background Since 1984, WHO has endorsed drug treatment to reduce Schistosoma infection and its consequent morbidity. Cross-sectional studies suggest pre-treatment correlation between infection intensity and risk for Schistosoma-related pathology. However, evidence also suggests that post-treatment reduction in intensity may not reverse morbidity because some morbidities occur at all levels of infection, and some reflect permanent tissue damage. The aim of this project was to systematically review evidence on drug-based control of schistosomiasis and to develop a quantitative estimate of the impact of post-treatment reductions in infection intensity on prevalence of infection-associated morbidity. Methodology/Principal findings This review was registered at inception with PROSPERO (CRD42015026080). Studies that evaluated morbidity before and after treatment were identified by online searches and searches of private archives. Post-treatment odds ratios or standardized mean differences were calculated for each outcome, and these were correlated to treatment-related egg count reduction ratios (ERRs) by meta-regression. A greater ERR correlated with greater reduction in odds of most morbidities. Random effects meta-analysis was used to derive summary estimates: after treatment of S. mansoni and S. japonicum, left-sided hepatomegaly was reduced by 54%, right-sided hepatomegaly by 47%, splenomegaly by 37%, periportal fibrosis by 52%, diarrhea by 53%, and blood in stools by 75%. For S. haematobium, hematuria was reduced by 92%, proteinuria by 90%, bladder lesions by 86%, and upper urinary tract lesions by 72%. There were no consistent changes in portal dilation or hemoglobin levels. In sub-group analysis, age, infection status, region, parasite species, and interval to follow-up were associated with meaningful differences in outcome. Conclusion/Significance While there are challenges to implementing therapy for schistosomiasis, and praziquantel therapy is not fully curative, reductions in egg output are significantly correlated with decreased morbidity and can be used to project diminution in disease burden when contemplating more aggressive strategies to minimize infection intensity. Schistosomiasis is the disease caused by infection with Schistosoma parasitic flukes. Depending on the infecting species, chronic Schistosoma infection can cause a variety of pathologies including liver and spleen enlargement, fibrosis and hypertension of the portal vein of the liver, or bladder ulceration and deformities and kidney blockage. Infection can also cause anemia, diarrhea, abdominal pain, and decreased physical fitness. In our study, we quantified the reductions in prevalence of infection-related morbidities among populations with Schistosoma infection, as achieved by giving one or more drug treatments. We systematically reviewed 71 available reports of Schistosoma-related morbidity reduction and determined, based on a meta-analysis of the primary data, that the odds of persisting morbidity progressively decrease when greater post-treatment reductions in parasite burden are achieved, as reflected by reduced egg counts in standard diagnostic testing. This suggests that repeated or more effective anti-parasite drug treatment will be a valuable tool for greater reduction of Schistosoma-related patient morbidities in affected areas.
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Affiliation(s)
- Gisele Andrade
- Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - David J. Bertsch
- Center for Global Health and Diseases, Case Western Reserve University, Cleveland, Ohio, United States of America
- Department of Biology, Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Andrea Gazzinelli
- Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais (INCT-DT), Belo Horizonte, MG, Brazil
| | - Charles H. King
- Center for Global Health and Diseases, Case Western Reserve University, Cleveland, Ohio, United States of America
- Schistosomiasis Consortium for Operational Research and Evaluation, University of Georgia, Athens, Georgia, United States of America
- * E-mail:
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Pereira TA, Syn WK, Pereira FEL, Lambertucci JR, Secor WE, Diehl AM. Serum osteopontin is a biomarker of severe fibrosis and portal hypertension in human and murine schistosomiasis mansoni. Int J Parasitol 2016; 46:829-832. [PMID: 27729270 PMCID: PMC5584370 DOI: 10.1016/j.ijpara.2016.08.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 08/22/2016] [Accepted: 08/25/2016] [Indexed: 12/29/2022]
Abstract
Schistosomiasis is a major cause of fibrosis and portal hypertension. The reason 4-10% of infected subjects develops hepatosplenic schistosomiasis remains unclear. Chronically infected male CBA/J mice reproduce the dichotomic forms of human schistosomiasis. Most mice (80%) develop moderate splenomegaly syndrome (similar to hepatointestinal disease in humans) and 20% present severe hypersplenomegaly syndrome (analogous to human hepatosplenic disease). We demonstrated that the profibrogenic molecule osteopontin discriminates between mice with severe and mild disease and could be a novel morbidity biomarker in murine and human schistosomiasis. Failure to downregulate osteopontin during the chronic phase may explain why hepatosplenic subjects develop severe fibrosis.
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Affiliation(s)
- Thiago Almeida Pereira
- Division of Gastroenterology, Department of Medicine, Duke University Medical Center, Durham, NC, USA; Departamento de Clínica Médica, Laboratório de Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil; Immunopathogesis Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Wing-Kin Syn
- Liver Regeneration and Repair Research Group, Institute of Hepatology, Foundation for Liver Research, London, UK; Division of Gastroenterology and Hepatology, Medical University of South Carolina, Charleston, SC, USA; Section of Gastroenterology, Ralph H Johnson Veteran Affairs Medical Center, Charleston, SC, USA
| | - Fausto E L Pereira
- Núcleo de Doenças Infecciosas, Universidade Federal do Espírito Santo, Vitória, ES, Brazil
| | - José Roberto Lambertucci
- Departamento de Clínica Médica, Laboratório de Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Anna Mae Diehl
- Division of Gastroenterology, Department of Medicine, Duke University Medical Center, Durham, NC, USA.
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Pereira TA, Syn WK, Amâncio FF, Cunha PHD, Caporali JFM, Trindade GVDM, Santos ET, Souza MM, Andrade ZA, Witek RP, Secor WE, Pereira FEL, Lambertucci JR, Diehl AM. Osteopontin Is Upregulated in Human and Murine Acute Schistosomiasis Mansoni. PLoS Negl Trop Dis 2016; 10:e0005057. [PMID: 27755536 PMCID: PMC5068698 DOI: 10.1371/journal.pntd.0005057] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 09/20/2016] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Symptomatic acute schistosomiasis mansoni is a systemic hypersensitivity reaction against the migrating schistosomula and mature eggs after a primary infection. The mechanisms involved in the pathogenesis of acute schistosomiasis are not fully elucidated. Osteopontin has been implicated in granulomatous reactions and in acute hepatic injury. Our aims were to evaluate if osteopontin plays a role in acute Schistosoma mansoni infection in both human and experimentally infected mice and if circulating OPN levels could be a novel biomarker of this infection. METHODOLOGY/PRINCIPAL FINDINGS Serum/plasma osteopontin levels were measured by ELISA in patients with acute (n = 28), hepatointestinal (n = 26), hepatosplenic (n = 39) schistosomiasis and in uninfected controls (n = 21). Liver osteopontin was assessed by immunohistochemistry in needle biopsies of 5 patients. Sera and hepatic osteopontin were quantified in the murine model of schistosomiasis mansoni during acute (7 and 8 weeks post infection, n = 10) and chronic (30 weeks post infection, n = 8) phase. Circulating osteopontin levels are increased in patients with acute schistosomiasis (p = 0.0001). The highest levels of OPN were observed during the peak of clinical symptoms (7-11 weeks post infection), returning to baseline level once the granulomas were modulated (>12 weeks post infection). The plasma levels in acute schistosomiasis were even higher than in hepatosplenic patients. The murine model mirrored the human disease. Macrophages were the major source of OPN in human and murine acute schistosomiasis, while the ductular reaction maintains OPN production in hepatosplenic disease. Soluble egg antigens from S. mansoni induced OPN expression in primary human kupffer cells. CONCLUSIONS/SIGNIFICANCE S. mansoni egg antigens induce the production of OPN by macrophages in the necrotic-exudative granulomas characteristic of acute schistosomiasis mansoni. Circulating OPN levels are upregulated in human and murine acute schistosomiasis and could be a non-invasive biomarker of this form of disease.
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Affiliation(s)
- Thiago Almeida Pereira
- Division of Gastroenterology, Department of Medicine, Duke University Medical Center, Durham, NC, United States of America
- Departamento de Clínica Médica, Laboratório de Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
- Laboratório de Patologia Experimental, Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, BA, Brazil
- Immunopathogesis Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda,MD, United States of America
| | - Wing-Kin Syn
- Section of Gastroenterology, Ralph H Johnson Veteran Affairs Medical Center, Charleston, South Carolina, United States of America
- Division of Gastroenterology and Hepatology, Medical University of South Carolina, Charleston, South Carolina, United States of America
- Liver Regeneration and Repair Research Group, Institute of Hepatology, Foundation for Liver Research, London, United Kingdom
| | - Frederico Figueiredo Amâncio
- Departamento de Clínica Médica, Laboratório de Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Pedro Henrique Diniz Cunha
- Departamento de Clínica Médica, Laboratório de Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Julia Fonseca Morais Caporali
- Departamento de Clínica Médica, Laboratório de Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Guilherme Vaz de Melo Trindade
- Departamento de Clínica Médica, Laboratório de Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
- Department of Physiology, School of Medicine, National University of Ireland, Galway, Ireland
| | - Elisângela Trindade Santos
- Laboratório de Patologia Experimental, Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, BA, Brazil
| | - Márcia Maria Souza
- Laboratório de Patologia Experimental, Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, BA, Brazil
| | - Zilton Araújo Andrade
- Laboratório de Patologia Experimental, Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, BA, Brazil
| | - Rafal P Witek
- Thermo Fisher Scientific, Frederick, MD, United States of America
| | - William Evan Secor
- Centers for Disease Control and Prevention, Atlanta, GA, United States of America
| | | | - José Roberto Lambertucci
- Departamento de Clínica Médica, Laboratório de Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
- * E-mail: (JRL); (AMD)
| | - Anna Mae Diehl
- Division of Gastroenterology, Department of Medicine, Duke University Medical Center, Durham, NC, United States of America
- * E-mail: (JRL); (AMD)
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Elsakkar MG, Eissa MM, Hewedy WA, Nassra RM, Elatrebi SF. Sodium valproate, a histone deacetylase inhibitor, with praziquantel ameliorates Schistosoma mansoni-induced liver fibrosis in mice. Life Sci 2016; 162:95-101. [PMID: 27528511 DOI: 10.1016/j.lfs.2016.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/07/2016] [Accepted: 08/10/2016] [Indexed: 11/17/2022]
Abstract
AIMS This study explores the potential antifibrotic effect of sodium valproate (SV), an inhibitor of class I histone deacetylase (HDAC) enzymes, and/or praziquantel (PZQ) on Schistosoma mansoni (S. mansoni)-induced liver fibrosis in mice. MAIN METHODS Male Swiss albino mice were divided into nine groups: group I- normal control (NC); group II- uninfected gum mucilage (GM) treated; group III- uninfected PZQ- treated; group IV- uninfected SV-treated; group V- control S. mansoni infected mice; group VI- infected GM-treated; group VII- infected PZQ-treated; group VIII- infected SV-treated; group IX- infected PZQ+SV treated. All SV administrations were 300mg/kg/day orally and administered for five weeks beginning on the 5th week post infection (WPI). All PZQ administrations were 500mg/kg/day orally and administered for 2 consecutive days beginning on the 7th WPI. Serum transforming growth factor-beta 1 (TGF-β1), tumor necrosis factor-alpha (TNF-α), hepatic hydroxyproline (Hyp) content, and liver function tests (AST and ALT) were determined. Specimens of the hepatic tissues were examined histologically. KEY FINDINGS Treatment of S. mansoni-infected mice with SV significantly decreased the serum levels of ALT, TGF-β1 and TNF-α, and the liver tissue hydroxyproline content compared with the S. mansoni infected untreated groups. Histologically, treatment with SV revealed regression of the granulomatous inflammatory reaction. Combined treatment with PZQ and SV produces more favorable biochemical results, and aborted granulomatous reaction compared with either drug alone. SIGNIFICANCE Sodium valproate is a promising anti-fibrotic agent. It demonstrated an anti-fibrotic effect in early stages of S. mansoni infection through downregulation of profibrogenic cytokines, and collagen deposition.
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Affiliation(s)
- Mohamed G Elsakkar
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Maha M Eissa
- Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Wafaa A Hewedy
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt.
| | - Rasha M Nassra
- Department of Medical Biochemistry, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Soha F Elatrebi
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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Opio CK, Kazibwe F, Ocama P, Rejani L, Belousova EN, Ajal P. Profiling lifetime episodes of upper gastrointestinal bleeding among patients from rural Sub-Saharan Africa where schistosoma mansoni is endemic. Pan Afr Med J 2016; 24:296. [PMID: 28154651 PMCID: PMC5267921 DOI: 10.11604/pamj.2016.24.296.9755] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Accepted: 07/21/2016] [Indexed: 01/01/2023] Open
Abstract
Introduction Severe chronic hepatic schistosomiasis is a common cause of episodes upper gastrointestinal bleeding (UGIB) in sub-Saharan Africa (SSA). However, there is paucity of data on clinical epidemiology of episodes of UGIB from rural Africa despite on going public health interventions to control and eliminate schistosomiasis. Methods Through a cross sectional study we profiled lifetime episodes of upper gastrointestinal bleeding and associated factors at a rural primary health facility in sub-Saharan Africa were schistosomiasis is endemic. The main outcome was number of lifetime episodes of UGIB analyzed as count data. Results From 107 enrolled participants, 323 lifetime episodes of UGIB were reported. Fifty-seven percent experienced ≥ 2 lifetime episodes of UGIB. Ninety-four percent had severe chronic hepatic schistosomiasis and 80% esophageal varices. Alcohol use and viral hepatitis was infrequent. Eighty-eight percent were previously treated with praziquantel and 70% had a history of blood transfusion. No patient had ever had an endoscopy or treatment for prevention of recurrent variceal bleeding. Multivariable analysis identified a cluster of eight clinical factor variables (age ≥ 40, female sex, history of blood transfusion, abdominal collaterals, esophageal varices, pattern x periportal fibrosis, anemia, and thrombocytopenia) significantly associated (P-value < 0.05) with increased probability of experiencing two or more lifetime episodes of UGIB in our study. Conclusion Upper gastrointestinal bleeding is a common health problem in this part of rural SSA where schistosomiasis is endemic. The clinical profile described is unique and is important for improved case management, and for future research.
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Affiliation(s)
| | - Francis Kazibwe
- Bishop Stuart University, Public Health Department, P.O.Box 9, Mbarara, Uganda
| | - Ponsiano Ocama
- Makerere University, College of Health Sciences, P.O.Box 7072, Kampala, Uganda
| | - Lalitha Rejani
- Makerere University, College of Health Sciences, P.O.Box 7072, Kampala, Uganda
| | | | - Paul Ajal
- Pakwach Health Centre IV, Ministry of Health, Pakwach, Uganda
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Biosensor for Hepatocellular Injury Corresponds to Experimental Scoring of Hepatosplenic Schistosomiasis in Mice. BIOMED RESEARCH INTERNATIONAL 2016; 2016:1567254. [PMID: 27376078 PMCID: PMC4916270 DOI: 10.1155/2016/1567254] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 05/17/2016] [Indexed: 12/18/2022]
Abstract
Severe hepatosplenic injury of mansonian schistosomiasis is caused by Th2 mediated granulomatous response against parasite eggs entrapped within the periportal tissue. Subsequent fibrotic scarring and deformation/sclerosing of intrahepatic portal veins lead to portal hypertension, ascites, and oesophageal varices. The murine model of Schistosoma mansoni (S. mansoni) infection is suitable to establish the severe hepatosplenic injury of disease within a reasonable time scale for the development of novel antifibrotic or anti-infective strategies against S. mansoni infection. The drawback of the murine model is that the material prepared for complex analysis of egg burden, granuloma size, hepatic inflammation, and fibrosis is limited due to small amounts of liver tissue and blood samples. The objective of our study was the implementation of a macroscopic scoring system for mice livers to determine infection-related organ alterations of S. mansoni infection. In addition, an in vitro biosensor system based on the detection of hepatocellular injury in HepG2/C3A cells following incubation with serum of moderately (50 S. mansoni cercariae) and heavily (100 S. mansoni cercariae) infected mice affirmed the value of our scoring system. Therefore, our score represents a valuable tool in experimental schistosomiasis to assess severity of hepatosplenic schistosomiasis and reduce animal numbers by saving precious tissue samples.
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Guimarães Cavalcanti M, Marcello de Araujo‐Neto J, Mauro Peralta J. Schistosomiasis: Clinical management of liver disease. Clin Liver Dis (Hoboken) 2015; 6:59-62. [PMID: 31040989 PMCID: PMC6490649 DOI: 10.1002/cld.495] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Affiliation(s)
- Marta Guimarães Cavalcanti
- Infectious and Parasitic Diseases ServiceHospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de JaneiroRio de JaneiroBrazil,Department of ImmunologyInstituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de JaneiroRio de JaneiroBrazil
| | - João Marcello de Araujo‐Neto
- Department of Clinical Medicine, Faculdade de MedicinaUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil
| | - José Mauro Peralta
- Department of ImmunologyInstituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de JaneiroRio de JaneiroBrazil
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Fang Y, Wu C, Chen Q, Wu J, Yang Y, Guo X, Chen G, Wang Z. SjE16.7 activates macrophages and promotes Schistosoma japonicum egg-induced granuloma development. Acta Trop 2015; 149:49-58. [PMID: 25997882 DOI: 10.1016/j.actatropica.2015.05.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 05/11/2015] [Accepted: 05/16/2015] [Indexed: 12/13/2022]
Abstract
SjE16.7 is an egg-specific protein from Schistosoma japonicum that recruits neutrophils and initiates an inflammatory granuloma response in host tissue. However, since macrophages are known to be important regulators of egg granuloma formation we investigated the effect of SjE16.7 on this cell type. Here we report that SjE16.7 is a potent macrophage activator, inducing macrophage chemotaxis and stimulating cytokine production. Treatment of murine primary macrophages with SjE16.7 resulted in upregulation of both pro- and anti-inflammatory cytokines (IL-10, IL-12, IL-6 and TNF-α), as well as phosphorylation of mitogen-activated protein kinases (MAPKs). Moreover, SjE16.7 treatment increased MHC Class II expression on the surface of macrophages. Importantly, in vivo blockade of SjE16.7 significantly reduced egg-induced pathology, as a result of decreased leucocyte infiltration and reduced granuloma size. Our results suggest that SjE16.7 is an important pathogenic factor and a potential treatment target for this disease.
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Affiliation(s)
- Yan Fang
- Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chenyun Wu
- Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qing Chen
- Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianhua Wu
- Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Yang
- Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaokui Guo
- Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guangjie Chen
- Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Zhaojun Wang
- Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Schistosome-induced cholangiocyte proliferation and osteopontin secretion correlate with fibrosis and portal hypertension in human and murine schistosomiasis mansoni. Clin Sci (Lond) 2015. [PMID: 26201095 PMCID: PMC4558314 DOI: 10.1042/cs20150117] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Schistosomal egg antigens induce host bile ductular cells to proliferate and produce osteopontin (OPN), a pro-fibrogenic factor that stimulates hepatic stellate cells to become myofibroblasts. The numbers of OPN-producing bile ductules correlate with fibrogenesis and portal hypertension in humans and mice. Schistosomiasis is a major cause of portal hypertension worldwide. It associates with portal fibrosis that develops during chronic infection. The mechanisms by which the pathogen evokes these host responses remain unclear. We evaluated the hypothesis that schistosome eggs release factors that directly stimulate liver cells to produce osteopontin (OPN), a pro-fibrogenic protein that stimulates hepatic stellate cells to become myofibroblasts. We also investigated the utility of OPN as a biomarker of fibrosis and/or severity of portal hypertension. Cultured cholangiocytes, Kupffer cells and hepatic stellate cells were treated with soluble egg antigen (SEA); OPN production was quantified by quantitative reverse transcriptase polymerase chain reaction (qRTPCR) and ELISA; cell proliferation was assessed by BrdU (5-bromo-2'-deoxyuridine). Mice were infected with Schistosoma mansoni for 6 or 16 weeks to cause early or advanced fibrosis. Liver OPN was evaluated by qRTPCR and immunohistochemistry (IHC) and correlated with liver fibrosis and serum OPN. Livers from patients with schistosomiasis mansoni (early fibrosis n=15; advanced fibrosis n=72) or healthy adults (n=22) were immunostained for OPN and fibrosis markers. Results were correlated with plasma OPN levels and splenic vein pressures. SEA-induced cholangiocyte proliferation and OPN secretion (P<0.001 compared with controls). Cholangiocytes were OPN (+) in Schistosoma-infected mice and humans. Liver and serum OPN levels correlated with fibrosis stage (mice: r=0.861; human r=0.672, P=0.0001) and myofibroblast accumulation (mice: r=0.800; human: r=0.761, P=0.0001). Numbers of OPN (+) bile ductules strongly correlated with splenic vein pressure (r=0.778; P=0.001). S. mansoni egg antigens stimulate cholangiocyte proliferation and OPN secretion. OPN levels in liver and blood correlate with fibrosis stage and portal hypertension severity.
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Richter J, Bode JG, Blondin D, Kircheis G, Kubitz R, Holtfreter MC, Müller-Stöver I, Breuer M, Hüttig F, Antoch G, Häussinger D. Severe liver fibrosis caused by Schistosoma mansoni: management and treatment with a transjugular intrahepatic portosystemic shunt. THE LANCET. INFECTIOUS DISEASES 2015; 15:731-7. [PMID: 25769268 DOI: 10.1016/s1473-3099(15)70009-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Liver diseases are common in inhabitants and migrants of tropical countries, where the liver can be exposed not only to toxins but also to many viral, bacterial, fungal, and parasitic infections. Schistosomiasis--a common parasitic infection that affects at least 240 million people worldwide, mostly in Africa--is regarded as the most frequent cause of liver fibrosis worldwide. We present a case of a 19-year-old male refugee from Guinea with recurrent oesophageal variceal bleeding due to schistosomal liver fibrosis refractory to endoscopic therapy. This case was an indication for portosystemic surgery, which is a highly invasive non-reversible intervention. An alternative, less invasive, reversible radiological procedure, used in liver cirrhosis, is the placement of a transjugular intrahepatic portosystemic shunt (TIPS). After thorough considerations of all therapeutic options we placed a TIPS in our patient. In more than 3 years of observation, he is clinically well apart from one episode of hepatic encephalopathy related to an acute episode of viral gastroenteritis. Bleeding from oesophageal varices has not recurred. In this Grand Round, we review the diagnostic approaches and treatment options for portal hypertension due to schistosomal liver fibrosis.
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Affiliation(s)
- Joachim Richter
- Tropical Medicine Unit, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany.
| | - Johannes G Bode
- Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Dirk Blondin
- Department of Diagnostic and Interventional Radiology, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Gerald Kircheis
- Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Ralf Kubitz
- Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Martha C Holtfreter
- Tropical Medicine Unit, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Irmela Müller-Stöver
- Tropical Medicine Unit, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Matthias Breuer
- Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Falk Hüttig
- Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Gerald Antoch
- Department of Diagnostic and Interventional Radiology, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Dieter Häussinger
- Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
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