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Jacinto-Maldonado M, González-Salazar C, Basanta MD, García-Peña GE, Saucedo B, Lesbarrères D, Meza-Figueroa D, Stephens CR. Water Pollution Increases the Risk of Chytridiomycosis in Mexican Amphibians. Ecohealth 2023:10.1007/s10393-023-01631-0. [PMID: 37140741 DOI: 10.1007/s10393-023-01631-0] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 02/23/2023] [Accepted: 03/09/2023] [Indexed: 05/05/2023]
Abstract
Chytridiomycosis is affecting amphibians worldwide, causing the decline and extinction of several amphibian populations. The disease is caused by the fungus Batrachochytrium dendrobatidis (Bd), a multihost pathogen living in freshwater habitats. While several environmental factors have been associated with the prevalence of Bd and its virulence, the effects of water quality on the pathogen are not clear yet. Some evidence suggests that water pollution may reduce amphibians' immune response and increase prevalence of Bd. To explore this hypothesis, we analyzed the relationship between water quality and the presence of Bd by using spatial data mining of 150 geolocations of Bd in amphibians from 9 families where Bd positive specimens have been previously reported, and water quality in 4,202 lentic and lotic water bodies in Mexico from 2010 to 2021. Our model showed that in the 3 main families where Bd was recorded, its presence is high in locations with low water quality, i.e., water polluted likely contaminated with urban and industrial waste. Using this model, we inferred areas suitable for Bd in Mexico; mainly in poorly studied areas along the gulf and on the pacific slope. We further argue that actions to reduce water pollution should become an integral part of public policies to prevent the spread of Bd and protect amphibians from this deadly pathogen.
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Affiliation(s)
- M Jacinto-Maldonado
- Departamento de Geología, División de Ciencias Exactas y Naturales, Universidad de Sonora, Hermosillo Sonora, México.
- Centro de Ciencias de la Complejidad (C3), Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, México.
| | - C González-Salazar
- Centro de Ciencias de la Complejidad (C3), Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, México
- Instituto de Ciencias de la Atmósfera y Cambio Climático, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, México
| | - M D Basanta
- Department of Biology, University of Nevada Reno, Reno, NV, USA
- Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, Ciudad de Mexico, México
| | - G E García-Peña
- Centro de Ciencias de la Complejidad (C3), Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, México
| | - B Saucedo
- IDEXX Laboratories B.V, Holland, The Netherlands
| | - D Lesbarrères
- Environment and Climate Change Canada, Greater Sudbury, Canada
| | - D Meza-Figueroa
- Departamento de Geología, División de Ciencias Exactas y Naturales, Universidad de Sonora, Hermosillo Sonora, México
| | - C R Stephens
- Centro de Ciencias de la Complejidad (C3), Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, México
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México (UNAM), Av. Universidad 3000, Mexico City, México
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Jorge-Galarza E, Torres-Tamayo M, Martínez-Alvarado MDR, Peña-Aparicio B, González-Salazar C, Reyes-Barrera J, Sierra-Beltrán M, Fajardo-Flores E, Kostin A, González-Hermosillo JA. Cardiovascular autonomic responses during head-up tilt test in newly diagnosed type 2 diabetes. Ir J Med Sci 2021; 191:2077-2084. [PMID: 34750734 DOI: 10.1007/s11845-021-02825-7] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 10/21/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Autonomic dysfunction is commonly observed in patients with long-standing type 2 diabetes. Previous studies have confirmed the value of both subjectively assessed symptoms and objective measurements of autonomic nervous system function in diagnosing cardiovascular autonomic neuropathy. However, the head-up tilt test (HUTT) has been rarely used to investigate cardiovascular autonomic responses in subjects with high risk of newly diagnosed type 2 diabetes (nT2D). OBJECTIVE To evaluate autonomic cardiovascular responses through passive orthostatic challenge along the diabetes continuum. METHODS The study population was stratified as normoglycemic (n = 16), prediabetes (n = 20), and nT2D (n = 20). The prevalence of orthostatic intolerance and autonomic cardiovascular responses was evaluated with the Task Force Monitor during a 30-min passive HUTT. Spectral indices of heart rate and blood pressure variability and baroreceptor effectiveness index (BEI) were calculated through the HUTT. BEI was obtained by the sequence method. RESULTS There were no differences in the prevalence of orthostatic intolerance or in the indices of heart rate and blood pressure variability among the three groups of study. The BEI was attenuated in the nT2D group in supine rest and throughout HUTT compared with normoglycemic and prediabetes groups. The multivariable linear regression analysis showed that BEI was associated with fasting glucose (β = - 0.52, p < 0.001) and HbA1c (β = - 0.57, p < 0.001) independently of cardiovascular risk factors. CONCLUSION Cardiovascular autonomic neuropathy, expressed as blunted BEI, is the only abnormal autonomic nervous test detected in nT2D, and it was independently associated with fasting glucose and HbA1c values.
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Affiliation(s)
- Esteban Jorge-Galarza
- Endocrinology Department, National Institute of Cardiology "Ignacio Chávez", Mexico City, Mexico
| | - Margarita Torres-Tamayo
- Endocrinology Department, National Institute of Cardiology "Ignacio Chávez", Mexico City, Mexico
| | | | - Berenice Peña-Aparicio
- Endocrinology Department, National Institute of Cardiology "Ignacio Chávez", Mexico City, Mexico
| | - Carmen González-Salazar
- Endocrinology Department, National Institute of Cardiology "Ignacio Chávez", Mexico City, Mexico
| | - Juan Reyes-Barrera
- Endocrinology Department, National Institute of Cardiology "Ignacio Chávez", Mexico City, Mexico
| | - Manuel Sierra-Beltrán
- Dysautonomic Clinic, National Institute of Cardiology "Ignacio Chávez", Mexico City, Mexico
| | - Erika Fajardo-Flores
- Dysautonomic Clinic, National Institute of Cardiology "Ignacio Chávez", Mexico City, Mexico
| | - Andrey Kostin
- Dysautonomic Clinic, National Institute of Cardiology "Ignacio Chávez", Mexico City, Mexico
| | - J Antonio González-Hermosillo
- Dysautonomic Clinic, National Institute of Cardiology "Ignacio Chávez", Mexico City, Mexico. .,, Mexico City, Mexico.
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Jorge-Galarza E, Medina-Urrutia A, Posadas-Sánchez R, Posadas-Romero C, Cardoso-Saldaña G, Vargas-Alarcón G, Caracas-Portilla N, González-Salazar C, Torres-Tamayo M, Juárez-Rojas JG. Adipose tissue dysfunction increases fatty liver association with pre diabetes and newly diagnosed type 2 diabetes mellitus. Diabetol Metab Syndr 2016; 8:73. [PMID: 27843495 PMCID: PMC5105292 DOI: 10.1186/s13098-016-0189-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 11/05/2016] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND To evaluate the role of adipose tissue function on the association of fatty liver (FL) with impaired fasting glucose (IFG) or newly diagnosed type 2 diabetes mellitus (nT2D). METHODS In 1264 subjects, computed tomography was used to evaluate FL and elevated visceral adipose tissue (VAT). Fasting plasma glucose, <5.6, 5.6-6.9 and ≥7 mmol/l, were used to defined normoglycemic (NG), IFG or nT2D, respectively. Elevated free fatty acids, low serum adiponectin levels and adipose tissue insulin resistance (Adipo-IR), were used as markers of adipose tissue dysfunction. RESULTS Compared to NG subjects, those with IFG or nT2D had higher prevalence of FL and elevated VAT. FL was found to be independently associated with IFG and nT2D. Adipo-IR increased the association between FL and IFG [OR: 2.46 (95% I.C.: 1.73-3.49) to 5.42 (3.11-9.41)], whereas low adiponectin levels had a higher effect on the FL and nT2D association [OR: 4.26 (2.18-8.34) to 8.53 (2.96-24.55)]. CONCLUSION Fatty liver was independently associated with IFG and nT2D. Our results indicate for the first time, that adipose tissue dysfunction increases these associations.
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Affiliation(s)
- Esteban Jorge-Galarza
- Endocrinology Department, National Institute of Cardiology “Ignacio Chávez”, Juan Badiano No. 1, Col Sección XVI, Tlalpan, 14080 Mexico, Mexico
| | - Aida Medina-Urrutia
- Endocrinology Department, National Institute of Cardiology “Ignacio Chávez”, Juan Badiano No. 1, Col Sección XVI, Tlalpan, 14080 Mexico, Mexico
| | - Rosalinda Posadas-Sánchez
- Endocrinology Department, National Institute of Cardiology “Ignacio Chávez”, Juan Badiano No. 1, Col Sección XVI, Tlalpan, 14080 Mexico, Mexico
| | - Carlos Posadas-Romero
- Endocrinology Department, National Institute of Cardiology “Ignacio Chávez”, Juan Badiano No. 1, Col Sección XVI, Tlalpan, 14080 Mexico, Mexico
| | - Guillermo Cardoso-Saldaña
- Endocrinology Department, National Institute of Cardiology “Ignacio Chávez”, Juan Badiano No. 1, Col Sección XVI, Tlalpan, 14080 Mexico, Mexico
| | - Gilberto Vargas-Alarcón
- Molecular Biology Department, National Institute of Cardiology “Ignacio Chávez”, Mexico, Mexico
| | - Nacú Caracas-Portilla
- Endocrinology Department, National Institute of Cardiology “Ignacio Chávez”, Juan Badiano No. 1, Col Sección XVI, Tlalpan, 14080 Mexico, Mexico
| | - Carmen González-Salazar
- Endocrinology Department, National Institute of Cardiology “Ignacio Chávez”, Juan Badiano No. 1, Col Sección XVI, Tlalpan, 14080 Mexico, Mexico
| | - Margarita Torres-Tamayo
- Endocrinology Department, National Institute of Cardiology “Ignacio Chávez”, Juan Badiano No. 1, Col Sección XVI, Tlalpan, 14080 Mexico, Mexico
| | - Juan Gabriel Juárez-Rojas
- Endocrinology Department, National Institute of Cardiology “Ignacio Chávez”, Juan Badiano No. 1, Col Sección XVI, Tlalpan, 14080 Mexico, Mexico
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Vargas-Alarcón G, Posadas-Romero C, Villarreal-Molina T, Alvarez-León E, Angeles-Martinez J, Posadas-Sanchez R, Monroy-Muñoz I, Luna-Fuentes S, González-Salazar C, Ramirez-Bello J, Cardoso-Saldaña G, Medina-Urrutia A, Kimura-Hayama E. IL-24 gene polymorphisms are associated with cardiometabolic parameters and cardiovascular risk factors but not with premature coronary artery disease: the genetics of atherosclerotic disease Mexican study. J Interferon Cytokine Res 2014; 34:659-66. [PMID: 24552169 DOI: 10.1089/jir.2013.0081] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Coronary artery disease (CAD) is a multifactorial and polygenic disorder that results from an excessive inflammatory response. We analyzed whether interleukin-24 (IL-24) gene polymorphisms are associated with premature CAD in a case-control association study. Four polymorphisms (rs1150253, rs1150256, rs1150258, and rs3762344) of the IL-24 gene were analyzed by 5' exonuclease TaqMan genotyping assays in a group of 952 patients with premature CAD, 284 individuals with subclinical atherosclerosis (SA), and 912 controls. The studied polymorphisms were not associated with the risk of premature CAD or SA (P>0.05). Under dominant models adjusted for age, sex, body mass index, and medication, the polymorphisms were associated with cardiometabolic parameters and cardiovascular risk factors. Three polymorphisms (rs1150253, rs1150256, and rs3762344) were associated with hypertension and increased levels of systolic blood pressure in controls. In SA, 2 polymorphisms (rs1150256 and rs3762344) were associated with type 2 diabetes mellitus, gamma-glutamyl transpeptidase (GGT), and alkaline phosphatase, whereas rs1150253 was associated with GGT and type 2 diabetes mellitus and rs1150258 with GGT and alkaline phosphatase. In premature CAD, the 4 polymorphisms were associated with total cholesterol >200 mg/dL, low-density lipoprotein cholesterol (LDL-C), and GGT, whereas rs1150256 was associated also with ApoA. On the other hand, rs1150258 was associated with ApoA, LDL-C >100 mg/dL, and apoB/apoA ratio, and rs3762344 with ApoA, apoB/apoA ratio, LDL-C >100 mg/dL, and total cholesterol. On the basis of single-nucleotide polymorphism functional prediction software, rs1150253 and rs1150258 polymorphisms seem to be functional. The 4 studied polymorphisms were in linkage disequilibrium and had a similar haplotype distribution in patients and controls. Our study demonstrates the association of IL-24 polymorphisms with metabolic and cardiovascular risk factors in individuals with premature CAD, SA, and controls.
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Affiliation(s)
- Gilberto Vargas-Alarcón
- 1 Department of Molecular Biology, Instituto Nacional de Cardiología Ignacio Chávez , Mexico City, Mexico
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González-Salazar C, Stephens CR. Constructing ecological networks: a tool to infer risk of transmission and dispersal of leishmaniasis. Zoonoses Public Health 2013; 59 Suppl 2:179-93. [PMID: 22958263 DOI: 10.1111/j.1863-2378.2012.01479.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We extend a recently developed method for constructing ecological networks to infer potential biotic interactions between species and to also include environmental factors, in particular land cover, thus permitting a simultaneous analysis of the interaction between environment and species distribution as well as inter-species interactions. We apply the method to the transmission and dispersal of leishmaniasis in Mexico. We find that the most important potential vectors and reservoirs can be classified into assemblages associated with different types of habitat. This in turn can be used to understand and map potential transmission risk, as well as to construct risk scenarios for the dispersal of disease from one geographical region to another.
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Affiliation(s)
- C González-Salazar
- Instituto de Biología, Universidad Nacional Autónoma de México, México DF, México
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Juárez-Rojas JG, Medina-Urrutia AX, Jorge-Galarza E, González-Salazar C, Kimura-Hayama E, Cardoso-Saldaña G, Posadas-Sánchez R, Martínez-Alvarado R, Posadas-Romero C. Fatty liver increases the association of metabolic syndrome with diabetes and atherosclerosis. Diabetes Care 2013; 36:1726-8. [PMID: 23250798 PMCID: PMC3661799 DOI: 10.2337/dc12-1276] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To analyze the participation of fatty liver (FL) in the association of metabolic syndrome (MS) with type 2 diabetes and coronary artery calcification (CAC). RESEARCH DESIGN AND METHODS A total of 765 subjects (52% women) aged 30 to 75 years without clinical atherosclerosis were included in this study. MS was defined in accordance with the Adult Treatment Panel III (ATPIII) guidelines, while FL and CAC were identified by computed tomography. RESULTS There were increasing frequencies of type 2 diabetes and CAC in all three groups: control, MS without FL, and MS plus FL. Multivariable-adjusted logistic regression analyses showed that FL increased the association of MS with type 2 diabetes in both women [odds ratio 10.6 (95% CI 3.4-33.7)] and men [12.1 (4.1-36.1)]. In women, FL also increased the association of MS with CAC [2.34 (1.07-5.12)]. CONCLUSIONS FL increases the association of MS with type 2 diabetes and subclinical atherosclerosis.
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Affiliation(s)
- Juan G Juárez-Rojas
- Department of Endocrinology, National Institute of Cardiology Ignacio Chávez, Mexico City, Mexico
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