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Gallegos-Rodarte C, Escobar-Chavarría O, Cantera-Bravo MM, Sarmiento-Silva RE, Benitez-Guzman A. NLRP3 Inflammasome Involved with Viral Replication in Cytopathic NADL BVDV Infection and IFI16 Inflammasome Connected with IL-1β Release in Non-Cytopathic NY-1 BVDV Infection in Bovine Macrophages. Viruses 2023; 15:1494. [PMID: 37515181 PMCID: PMC10386432 DOI: 10.3390/v15071494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/28/2023] [Accepted: 06/30/2023] [Indexed: 07/30/2023] Open
Abstract
Inflammasomes are multiprotein complexes that play a role in the processing of proinflammatory cytokines such as interleukin 1 beta (IL-1β). The secretion of IL-1β in bovine macrophages infected with the bovine viral diarrhea virus (BVDV) cytopathic strain NADL (NADLcp-BVDV) is caspase 1-dependent. In the present study, we found that in macrophages infected with NADL, the NLRP3 inflammasome participated in the maturation of IL-1β as the level decreased from 4629.3 pg/mL to 897.0 pg/mL after treatment with cytokine release inhibitory drug 3 (CRID3). Furthermore, NLRP3 activation has implications regarding viral replication, as there was a decrease in the viral titer until 1 log of a supernatant of macrophages that were inhibited with CRID3 remained. In the case of the non-cytopathic BVDV strain NY-1 (NY-1 ncpBVDV), IL-1β secretion is not affected by NLRP3, but could be related to the IFI16 inflammasome; we found a colocalization of IFI16 with ASC using confocal microscopy in infected macrophages with the NY-1 ncp-BVDV biotype. To relate IFI16 activation to IL-1β release, we used ODN TTAGGG (A151), a competitive inhibitor of IFI16; the results show a decrease in its level from 248 pg/mL to 128.3 pg/mL. Additionally, we evaluated the caspase 1 activation downstream of IFI16 and found a decrease in the IL-1β from 252.9 pg/mL to 63.5 pg/mL when caspase 1 was inhibited with Y-VAD. Our results provide an improved understanding of the mechanisms involved in the viral replication, inflammation and pathogenesis of bovine viral diarrhea.
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Affiliation(s)
| | | | | | | | - Alejandro Benitez-Guzman
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (C.G.-R.); (O.E.-C.); (M.M.C.-B.); (R.E.S.-S.)
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2
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Morales-Salazar I, Montes-Enríquez FP, Garduño-Albino CE, García-Sánchez MA, Ibarra IA, Rojas-Aguirre Y, García-Hernández ME, Sarmiento-Silva RE, Alcaraz-Estrada SL, Díaz-Cervantes E, González-Zamora E, Islas-Jácome A. Synthesis of bis-furyl-pyrrolo[3,4- b]pyridin-5-ones via Ugi-Zhu reaction and in vitro activity assays against human SARS-CoV-2 and in silico studies on its main proteins. RSC Med Chem 2023; 14:154-165. [PMID: 36760742 PMCID: PMC9890515 DOI: 10.1039/d2md00350c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 11/11/2022] [Indexed: 11/19/2022] Open
Abstract
An Ugi-Zhu three-component reaction (UZ-3CR) coupled in one pot manner to a cascade process (N-acylation/aza Diels-Alder cycloaddition/decarboxylation/dehydration) was performed to synthesize a series of bis-furyl-pyrrolo[3,4-b]pyridin-5-ones in 45 to 82% overall yields using ytterbium triflate as a catalyst, toluene as a solvent, and microwaves as a heat source. The synthesized molecules were evaluated in vitro against human SARS-CoV-2 through a time-of-addition approach, finding that compound 1e, at a concentration of 10.0 μM, exhibited a significant reduction at the initial infection stages, thus showing prophylactic potential. On the other hand, it was found that compound 1d, at the same concentration, was significantly active when applied post-infection, thus exhibiting a therapeutic profile. Moreover, compound 1f showed both, prophylactic and therapeutic activity. Then, to understand interactions between synthesized compounds and the main proteins related to the virus, docking studies were performed on spike-glycoprotein, main-protease, and Nsp3 protein, finding moderate to strong binding energies, matching accurately with the in vitro results. Additionally, a pharmacophore model was computed behind further rational drug design.
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Affiliation(s)
- Ivette Morales-Salazar
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa Av. Ferrocarril San Rafael Atlixco 186, Col. Leyes de Reforma 1A Sección Iztapalapa Ciudad de México C.P. 09310 Mexico
| | - Flora P Montes-Enríquez
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa Av. Ferrocarril San Rafael Atlixco 186, Col. Leyes de Reforma 1A Sección Iztapalapa Ciudad de México C.P. 09310 Mexico
| | - Carlos E Garduño-Albino
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa Av. Ferrocarril San Rafael Atlixco 186, Col. Leyes de Reforma 1A Sección Iztapalapa Ciudad de México C.P. 09310 Mexico
| | - M A García-Sánchez
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa Av. Ferrocarril San Rafael Atlixco 186, Col. Leyes de Reforma 1A Sección Iztapalapa Ciudad de México C.P. 09310 Mexico
| | - Ilich A Ibarra
- Laboratorio de Fisicoquímica y Reactividad de Superficies, Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México Circuito Exterior S/N, Ciudad Universitaria Coyoacán Ciudad de México C.P. 04510 Mexico
| | - Yareli Rojas-Aguirre
- Departamento de Polímeros, Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México Circuito Exterior S/N, Ciudad Universitaria Coyoacán Ciudad de México C.P. 04510 Mexico
| | - Montserrat Elemi García-Hernández
- Departamento de Microbiología e Inmunología, Facultad de Medicina, Veterinaria y Zootecnia, Universidad Nacional Autónoma de México Av. Universidad 3000, Ciudad Universitaria Coyoacán Ciudad de México C.P. 04510 Mexico
| | - Rosa Elena Sarmiento-Silva
- Laboratorio de Virología y Laboratorio Mixto Internacional ELDORADO, Facultad de Medicina, Veterinaria y Zootecnia, Universidad Nacional Autónoma de México Av. Universidad 3000, Ciudad Universitaria Coyoacán Ciudad de México C.P. 04510 Mexico
| | - Sofía Lizeth Alcaraz-Estrada
- División de Medicina Genómica, Centro Médico Nacional 20 de Noviembre, ISSSTE Félix Cuevas 540, Col. Del Valle Sur Benito Juárez Ciudad de México C.P. 03100 Mexico
| | - Erik Díaz-Cervantes
- Departamento de Alimentos, Centro Interdisciplinario del Noreste, Universidad de Guanajuato Tierra Blanca Guanajuato C.P. 37975 Mexico
| | - Eduardo González-Zamora
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa Av. Ferrocarril San Rafael Atlixco 186, Col. Leyes de Reforma 1A Sección Iztapalapa Ciudad de México C.P. 09310 Mexico
| | - Alejandro Islas-Jácome
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa Av. Ferrocarril San Rafael Atlixco 186, Col. Leyes de Reforma 1A Sección Iztapalapa Ciudad de México C.P. 09310 Mexico
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Acevedo-Jiménez GE, Sarmiento-Silva RE, Alonso-Morales RA, Córdova-Ponce R, Ramírez-Álvarez H. Detection and genetic characterization of feline retroviruses in domestic cats with different clinical signs and hematological alterations. Arch Virol 2023. [DOI: https:/doi.org/10.1007/s00705-022-05627-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Zepeda-Cervantes J, Martínez-Flores D, Ramírez-Jarquín JO, Tecalco-Cruz ÁC, Alavez-Pérez NS, Vaca L, Sarmiento-Silva RE. Implications of the Immune Polymorphisms of the Host and the Genetic Variability of SARS-CoV-2 in the Development of COVID-19. Viruses 2022; 14:94. [PMID: 35062298 PMCID: PMC8778858 DOI: 10.3390/v14010094] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/22/2021] [Accepted: 12/28/2021] [Indexed: 01/08/2023] Open
Abstract
The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is responsible for the current pandemic affecting almost all countries in the world. SARS-CoV-2 is the agent responsible for coronavirus disease 19 (COVID-19), which has claimed millions of lives around the world. In most patients, SARS-CoV-2 infection does not cause clinical signs. However, some infected people develop symptoms, which include loss of smell or taste, fever, dry cough, headache, severe pneumonia, as well as coagulation disorders. The aim of this work is to report genetic factors of SARS-CoV-2 and host-associated to severe COVID-19, placing special emphasis on the viral entry and molecules of the immune system involved with viral infection. Besides this, we analyze SARS-CoV-2 variants and their structural characteristics related to the binding to polymorphic angiotensin-converting enzyme type 2 (ACE2). Additionally, we also review other polymorphisms as well as some epigenetic factors involved in the immunopathogenesis of COVID-19. These factors and viral variability could explain the increment of infection rate and/or in the development of severe COVID-19.
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Affiliation(s)
- Jesús Zepeda-Cervantes
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico;
| | - Daniel Martínez-Flores
- Departamento de Biología Celular y del Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico;
| | - Josué Orlando Ramírez-Jarquín
- Departamento de Neuropatología Molecular, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico;
| | - Ángeles C. Tecalco-Cruz
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de México (UACM), Mexico City 06720, Mexico;
| | - Noé Santiago Alavez-Pérez
- Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Mexico City 07340, Mexico;
| | - Luis Vaca
- Departamento de Biología Celular y del Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico;
| | - Rosa Elena Sarmiento-Silva
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico;
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López-Santaella T, Álvarez Y Muñoz T, Medeiros-Domingo M, Moreno-Espinosa S, Consuelo-Sánchez A, Muñoz-Hernández O, Sarmiento-Silva RE, Sotomayor-González A, Trujillo-Ortega ME, García-Hernández ME, Taboada-Ramírez BI, Arenas-Huertero F. Serological and molecular study of Hepatitis E virus in pediatric patients in Mexico. Ann Hepatol 2021; 19:295-301. [PMID: 31899127 DOI: 10.1016/j.aohep.2019.12.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/27/2019] [Accepted: 12/04/2019] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND OBJECTIVES Cases of viral hepatitis reported in Mexico are typically identified as hepatitis A, B and C. However, unspecified cases are reported annually. Hepatitis E virus (HEV) is an emergent agent that causes a self-limiting infection that can evolve to chronic in immunosuppressed individuals. In Mexico, HEV genotype 2 is considered endemic, though it's the prevalence is not well known. Therefore, the present study was designed to determine the prevalence of HEV among patients at the "Hospital Infantil de Mexico Federico Gomez". MATERIALS AND METHODS The study included 99 patients, anti-HEV antibody (IgG and IgM) were detected by indirect ELISA and viral genome was identified using RT-PCR technique. Two PCR products of positive cases were sequenced. RESULTS ELISA results were positive in 3% and 6%, for IgG and IgM respectively, 54.5% prevalence was found by PCR. Low lymphocyte count (p<0.05) and malnutrition (p<0.005) were significant factors for high PCR prevalence and could increase the possibility of infection. Two samples were sequenced and confirmed the presence of HEV genotype 3. CONCLUSIONS This report reveals the incidence of HEV in pediatric patients in Mexico. Moreover, the identification of HEV genotype 3 in human samples suggests a potential zoonotic risk that requires further research.
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Affiliation(s)
- Tayde López-Santaella
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | - Teresa Álvarez Y Muñoz
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | - Mara Medeiros-Domingo
- Servicio de Nefrología, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | | | | | - Onofre Muñoz-Hernández
- Dirección de Investigación, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | - Rosa Elena Sarmiento-Silva
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, Mexico.
| | - Alicia Sotomayor-González
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - María Elena Trujillo-Ortega
- Departamento de Medicina y Zootecnia de Cerdos, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Montserrat Elemi García-Hernández
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Blanca Itzel Taboada-Ramírez
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Mor. Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
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Abstract
Hepatitis E virus produces an emerging health problem, knowledge about epidemiology of hepatitis E virus infections in the USA and Latin America is still limited. The wide-ranging clinical manifestations lead to an extensive underestimation of the global seroprevalence. Clinical and diagnostic accuracy are critical to improve patient management.
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Affiliation(s)
- Rosa Elena Sarmiento-Silva
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, México.
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, México
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Sotomayor-Bonilla J, Tolsá-García MJ, García-Peña GE, Santiago-Alarcon D, Mendoza H, Alvarez-Mendizabal P, Rico-Chávez O, Sarmiento-Silva RE, Suzán G. Insights into the Host Specificity of Mosquito-Borne Flaviviruses Infecting Wild Mammals. Ecohealth 2019; 16:726-733. [PMID: 31664588 DOI: 10.1007/s10393-019-01442-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/19/2019] [Indexed: 06/10/2023]
Abstract
Mosquito-borne flaviviruses (MBFVs) are of public and animal health concern because they cause millions of human deaths annually and impact domestic animals and wildlife globally. MBFVs are phylogenetically divided into two clades, one is transmitted by Aedes mosquitoes (Ae-MBFVs) associated with mammals and the other by Culex mosquitoes (Cx-MBFVs) associated with birds. However, this assumption has not been evaluated. Here, we synthesized 79 published reports of MBFVs from wild mammals, estimating their host. Then, we tested whether the host specificity was biased to sampling and investigation efforts or to phylogenetic relationships using a viral phylogenetic tree drawn from analyzing whole flavivirus genomes obtained in GenBank. We found in total 18 flaviviruses, nine related to Aedes spp. and nine to Culex spp. infecting 129 mammal species. Thus, this supports that vectors are transmitting MBFV across available host clades and that ornithophilic mosquitoes are readily infecting mammals. Although most of the mosquito species are generalists in their host-feeding preferences, we also found a certain degree of MBFV's specificity, as most of them infect closely related mammal species. The present study integrates knowledge regarding MBFVs, and it may help to understand their transmission dynamics between viruses, vectors, and mammal hosts.
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Affiliation(s)
- Jesús Sotomayor-Bonilla
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico
| | - María José Tolsá-García
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico.
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico.
| | - Gabriel E García-Peña
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico
- Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, Ciudad de México, Mexico
| | - Diego Santiago-Alarcon
- Red de Biología y Conservación de Vertebrados, Instituto de Ecología AC, Carretera Antigua a Coatepec 351, Xalapa, Veracruz, Mexico
| | - Hugo Mendoza
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico
| | - Paulina Alvarez-Mendizabal
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico
| | - Oscar Rico-Chávez
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico
| | - Rosa Elena Sarmiento-Silva
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, Ciudad de México, Mexico
| | - Gerardo Suzán
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico
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Hernández-Trujillo E, Bolaños-López D, Beltrán-Figueroa R, Sarmiento-Silva RE, Juárez-López N, Trujillo-Ortega ME. Caracterización de proteínas de fase aguda asociadas con un brote de virus de diarrea epidémica porcina en lechones y cerdas lactantes en México. TIP 2018. [DOI: 10.22201/fesz.23958723e.2019.1.140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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García-Hernández ME, Cruz-Rivera M, Sánchez-Betancourt JI, Rico-Chávez O, Vergara-Castañeda A, Trujillo ME, Sarmiento-Silva RE. Seroprevalence of anti-hepatitis E virus antibodies in domestic pigs in Mexico. BMC Vet Res 2017; 13:289. [PMID: 28934965 PMCID: PMC5609016 DOI: 10.1186/s12917-017-1208-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 09/14/2017] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Hepatitis E virus (HEV) infection is one of the most common causes of acute liver diseases in humans worldwide. In developing countries, HEV is commonly associated with waterborne outbreaks. Conversely, in industrialized countries, HEV infection is often associated with travel to endemic regions or ingestion of contaminated animal products. Limited information on both, human and animal HEV infection in Mexico is available. As a consequence, the distribution of the virus in the country is largely unknown. Here, we assessed the seroprevalence of HEV among swine in different geographical regions in Mexico. METHODS Seroprevalence of anti-HEV antibodies in swine herds in Mexico was evaluated in a representative sample including 945 pig serum specimens from different regions of the country using a commercial enzyme-linked immunosorbent assay (ELISA). RESULTS The overall prevalence of anti-HEV antibodies in swine was 59.4%. The northern region of Mexico exhibited the highest seroprevalence in the country (86.6%), while the central and southern regions in Mexico showed lower seroprevalence, 42.7% and 51.5%, respectively. CONCLUSIONS In Mexico, HEV seroprevalence in swine is high. Importantly, northern Mexico showed the highest seroprevalence in the country. Thus, further studies are required to identify the risk factors contributing to HEV transmission among pigs in the country. Assessment of HEV human infection in the context of viral transmission in swine is required to better understand the epidemiology of hepatitis E in Mexico.
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Affiliation(s)
| | - Mayra Cruz-Rivera
- Facultad de Medicina, Universidad Nacional Autónoma de México, 04510, Ciudad de México, México
| | - José Iván Sánchez-Betancourt
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, 04510, México
| | - Oscar Rico-Chávez
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, 04510, México
| | - Arely Vergara-Castañeda
- Facultad de Ciencias Químicas, Universidad La Salle, Benjamín Franklin 47, 06140, Ciudad de México, México
| | - María E Trujillo
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, 04510, México
| | - Rosa Elena Sarmiento-Silva
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, 04510, México.
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10
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Trujillo-Ortega ME, Beltrán-Figueroa R, García-Hernández ME, Juárez-Ramírez M, Sotomayor-González A, Hernández-Villegas EN, Becerra-Hernández JF, Sarmiento-Silva RE. Isolation and characterization of porcine epidemic diarrhea virus associated with the 2014 disease outbreak in Mexico: case report. BMC Vet Res 2016; 12:132. [PMID: 27357720 PMCID: PMC4928271 DOI: 10.1186/s12917-016-0763-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 06/24/2016] [Indexed: 11/16/2022] Open
Abstract
Background Interest in porcine epidemic diarrhea has grown since the 2013 outbreak in the United States caused major losses, with mortality rates up to 100 % in suckling piglets. In Mexico, an outbreak of porcine epidemic diarrhea, characterized by 100 % mortality in piglets, began in March 2014 in the State of Mexico. Methods The aim of this study was to confirm and identify porcine epidemic diarrhea virus (PEDV) in samples from piglets with suggestive clinical signs using virological, histological, and molecular techniques. Necropsy was performed on 13 piglets from two litters with initial and advanced clinical signs. Suggestive lesions of acute infection with PEDV were detected in histological sections of the small and large bowels; specifically, multiple virus particles with visible crown-shaped projections were observed using electron microscopy and negative staining. Viral isolation was performed in Vero cells with trypsin. Infection was monitored by observation of cytopathic effect, and titration was determined by TCID50/ml. The presence of the PEDV in cultures and clinical samples was confirmed by RT-PCR amplification and sequencing of a 651-bp segment of the S glycoprotein gene, as well as a 681-bp matrix protein gene. Results The nucleotide sequence analysis of the Mexican isolates showed marked homology to viruses that circulated in 2013 in Colorado, USA. Conclusions In this paper we confirm the isolation and characterization of PEDV from animals with early and advanced clinical signs.
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Affiliation(s)
- María Elena Trujillo-Ortega
- Departamento de Medicina y Zootecnia de Cerdos, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - Rolando Beltrán-Figueroa
- Departamento de Medicina y Zootecnia de Cerdos, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - Montserrat Elemi García-Hernández
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - Mireya Juárez-Ramírez
- Departamento de Patología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - Alicia Sotomayor-González
- Departamento de Medicina y Zootecnia de Cerdos, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - Erika N Hernández-Villegas
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - José F Becerra-Hernández
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - Rosa Elena Sarmiento-Silva
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
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Espinosa-García AC, Díaz-Ávalos C, Solano-Ortiz R, Tapia-Palacios MA, Vázquez-Salvador N, Espinosa-García S, Sarmiento-Silva RE, Mazari-Hiriart M. Removal of bacteria, protozoa and viruses through a multiple-barrier household water disinfection system. J Water Health 2014; 12:94-104. [PMID: 24642436 DOI: 10.2166/wh.2013.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Municipal water disinfection systems in some areas are not always able to meet water consumer needs, such as ensuring distributed water quality, because household water management can be a contributing factor in water re-contamination. This fact is related to the storage options that are common in places where water is scarce or is distributed over limited time periods. The aim of this study is to assess the removal capacity of a multiple-barrier water disinfection device for protozoa, bacteria, and viruses. Water samples were taken from households in Mexico City and spiked with a known amount of protozoa (Giardia cyst, Cryptosporidium oocyst), bacteria (Escherichia coli), and viruses (rotavirus, adenovirus, F-specific ribonucleic acid (FRNA) coliphage). Each inoculated sample was processed through a multiple-barrier device. The efficiency of the multiple-barrier device to remove E. coli was close to 100%, and more than 87% of Cryptosporidium oocysts and more than 98% of Giardia cysts were removed. Close to 100% of coliphages were removed, 99.6% of the adenovirus was removed, and the rotavirus was almost totally removed. An effect of site by zone was detected; this observation is important because the water characteristics could indicate the efficiency of the multiple-barrier disinfection device.
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Affiliation(s)
- A C Espinosa-García
- Instituto de Ecología, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior Ciudad Universitaria, Coyoacán 04510, Distrito Federal, México
| | - C Díaz-Ávalos
- Instituto de Investigaciones en Matemáticas y Sistemas, UNAM, Circuito Escolar Ciudad Universitaria, Coyoacán 04510, Distrito Federal, México
| | - R Solano-Ortiz
- Instituto de Ecología, UNAM, Circuito Exterior Ciudad Universitaria, Coyoacán 04510, Distrito Federal, México
| | - M A Tapia-Palacios
- Instituto de Ecología, UNAM, Circuito Exterior Ciudad Universitaria, Coyoacán 04510, Distrito Federal, México
| | - N Vázquez-Salvador
- Instituto de Ecología, UNAM, Circuito Exterior Ciudad Universitaria, Coyoacán 04510, Distrito Federal, México
| | - S Espinosa-García
- Instituto de Ecología, UNAM, Circuito Exterior Ciudad Universitaria, Coyoacán 04510, Distrito Federal, México
| | - R E Sarmiento-Silva
- Facultad de Medicina Veterinaria y Zootecnia, UNAM, Circuito Exterior Ciudad Universitaria, Coyoacán 04510, Distrito Federal, México
| | - M Mazari-Hiriart
- Instituto de Ecología, UNAM, Circuito Exterior Ciudad Universitaria, Coyoacán 04510, Distrito Federal, México E-mail:
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Nakamura-López Y, Sarmiento-Silva RE, Moran-Andrade J, Gómez-García B. Staurosporine-induced apoptosis in P388D1 macrophages involves both extrinsic and intrinsic pathways. Cell Biol Int 2013; 33:1026-31. [DOI: 10.1016/j.cellbi.2009.06.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2009] [Revised: 04/09/2009] [Accepted: 06/03/2009] [Indexed: 11/25/2022]
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Nakamura-López Y, Villegas-Sepúlveda N, Sarmiento-Silva RE, Gómez B. Intrinsic apoptotic pathway is subverted in mouse macrophages persistently infected by RSV. Virus Res 2011; 158:98-107. [DOI: 10.1016/j.virusres.2011.03.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2010] [Revised: 03/16/2011] [Accepted: 03/17/2011] [Indexed: 11/29/2022]
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