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Zavala-Félix KA, Reyes-López MA, Camacho-Sánchez FY, Acosta-Sánchez HH, Hart CE, Zavala-Norzagaray AA, Leal-Sepúlveda V, Leal-Moreno R, Espinoza-Romo BA, Aguirre AA, Ley-Quiñónez CP. Trace elements concentration in blood of nesting Kemp's Ridley turtles (Lepidochelys kempii) at Rancho Nuevo sanctuary, Tamaulipas, Mexico. PLoS One 2022; 17:e0269346. [PMID: 36322564 PMCID: PMC9629633 DOI: 10.1371/journal.pone.0269346] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 08/29/2022] [Indexed: 11/06/2022] Open
Abstract
The concentrations of trace elements including As, Zn, Cu, Se, Pb, Hg and Cd, were determined in the blood of nesting Kemp’s ridley turtles (Lepidochelys kempii) at Rancho Nuevo sanctuary, Tamaulipas, Mexico during 2018–2020. The sequential concentrations analyzed were Zn> Se> Cu> As> Pb; while Cd and Hg concentrations were below the limits of detection (0.01 μg g-1). No significant differences were observed between the concentrations of trace elements (p> 0.05) by year, except Se levels, possibly resulting from recorded seasonal differences in turtle size. No relationships among turtle size vs elements concentration were observed. In conclusion, essential and toxic trace elements concentrations in the blood of nesting Kemp’s ridley turtles may be a reflex of the ecosystem in which the turtles develop, that is, with low bioavailability of elements observed in the trophic webs in the Gulf of Mexico.
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Affiliation(s)
- Kevin Alan Zavala-Félix
- Laboratory Vida Silvestre, CIIDIR Sinaloa- Department Medio Ambiente, Instituto Politécnico Nacional, Guasave, Sinaloa, Mexico
| | - Miguel Angel Reyes-López
- Centro de Biotecnología Genómica-Conservation Medicine Laboratory, Instituto Politécnico Nacional, Reynosa, Tamaulipas, Mexico
| | - Fátima Yedith Camacho-Sánchez
- Centro de Biotecnología Genómica-Conservation Medicine Laboratory, Instituto Politécnico Nacional, Reynosa, Tamaulipas, Mexico
| | - Héctor Hugo Acosta-Sánchez
- Programa de Conservación de Tortugas Marinas en el Santuario Playa de Rancho Nuevo, Terra Asesoría Ambiental S.C., Ciudad Victoria, Mexico
| | - Catherine E. Hart
- Investigación, Capacitación y Soluciones Ambientales y Sociales AC, Tepic, Nayarit, México
| | - Alan A. Zavala-Norzagaray
- Laboratory Vida Silvestre, CIIDIR Sinaloa- Department Medio Ambiente, Instituto Politécnico Nacional, Guasave, Sinaloa, Mexico
| | - Valeria Leal-Sepúlveda
- Laboratory Vida Silvestre, CIIDIR Sinaloa- Department Medio Ambiente, Instituto Politécnico Nacional, Guasave, Sinaloa, Mexico
| | - Renato Leal-Moreno
- Laboratory Vida Silvestre, CIIDIR Sinaloa- Department Medio Ambiente, Instituto Politécnico Nacional, Guasave, Sinaloa, Mexico
| | - Brenda Aracely Espinoza-Romo
- Laboratory Vida Silvestre, CIIDIR Sinaloa- Department Medio Ambiente, Instituto Politécnico Nacional, Guasave, Sinaloa, Mexico
| | - A. Alonso Aguirre
- Warner College of Natural Resources, Michael Smith Natural Resources Building, Colorado State University, Fort Collins, CO, United States of America
| | - César P. Ley-Quiñónez
- Laboratory Vida Silvestre, CIIDIR Sinaloa- Department Medio Ambiente, Instituto Politécnico Nacional, Guasave, Sinaloa, Mexico
- * E-mail:
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Camacho-Sánchez FY, Aguirre AA, Narváez-Zapata JA, Zavala-Norzagaray AA, Ley-Quiñónez CP, Acosta-Sánchez HH, Rodriguez-González H, Delgado-Trejo C, Reyes-López MA. DNA barcode analysis of the endangered green turtle ( Chelonia mydas) in Mexico 1. Genome 2021; 64:879-891. [PMID: 33555972 DOI: 10.1139/gen-2019-0213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Technological and analytical advances to study evolutionary biology, ecology, and conservation of green turtles (Chelonia mydas) are realized through molecular approaches including DNA barcoding. We characterized the usefulness of COI DNA barcodes in green turtles in Mexico to better understand genetic divergence and other genetic parameters of this species. We analyzed 63 sequences, including 25 from green turtle field specimens collected from the Gulf of Mexico and from the Mexican Pacific and 38 already present in the Barcode of Life Data Systems (BOLD). A total of 13 haplotypes were identified with four novel haplotypes from the Pacific Ocean and three novel haplotypes from the Atlantic Ocean. Intraspecific distance values among COI gene sequences by two different models were 0.01, demonstrating that there is not a subdivision for green turtle species. Otherwise, the interspecific distance interval ranged from 0.07 to 0.13, supporting a clear subdivision among all sea turtle species. Haplotype and total nucleotide diversity values of the COI gene reflect a medium genetic diversity average. Green turtles of the Mexican Pacific showed common haplotypes to some Australian and Chinese turtles, but different from the haplotypes of the Mexican Atlantic. COI analysis revealed new haplotypes and confirmed that DNA barcodes were useful for evaluation of the population diversity of green turtles in Mexico.
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Affiliation(s)
- Fátima Yedith Camacho-Sánchez
- Conservation Medicine Lab, Centro de Biotecnología Genómica-Instituto Politécnico Nacional, Reynosa, Tamaulipas, Mexico.,Department of Environmental Science and Policy, George Mason University, Fairfax, Virginia, USA
| | - A Alonso Aguirre
- Department of Environmental Science and Policy, George Mason University, Fairfax, Virginia, USA
| | - José Alberto Narváez-Zapata
- Laboratorio de Biotecnología Industrial, Centro de Biotecnología Genómica-Instituto Politécnico Nacional, Reynosa, Tamaulipas, Mexico
| | - Alan A Zavala-Norzagaray
- Laboratorio de Vida Silvestre, Departamento de Medio Ambiente, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, Unidad Sinaloa, Instituto Politécnico Nacional, Guasave, Sinaloa, Mexico
| | - Cesar P Ley-Quiñónez
- Laboratorio de Vida Silvestre, Departamento de Medio Ambiente, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, Unidad Sinaloa, Instituto Politécnico Nacional, Guasave, Sinaloa, Mexico
| | - H Hugo Acosta-Sánchez
- United Nations Development Programme-Comisión Nacional de Áreas Naturales Protegidas, Ciudad Victoria, Tamaulipas, Mexico
| | - Hervey Rodriguez-González
- Laboratorio Nutrición Acuícola, Departamento de Acuacultura, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, Unidad Sinaloa, Instituto Politécnico Nacional, Guasave, Sinaloa, Mexico
| | - Carlos Delgado-Trejo
- Departamento de Ecología Marina, Proyecto Tortuga Negra, Instituto de Investigaciones sobre los Recursos Naturales, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | - Miguel Angel Reyes-López
- Conservation Medicine Lab, Centro de Biotecnología Genómica-Instituto Politécnico Nacional, Reynosa, Tamaulipas, Mexico
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Sánchez-Domínguez CN, Reyes-López MA, Bustamante A, Treviño V, Martínez-Rodríguez HG, Rojas-Martínez A, Barrera-Saldaña HA, Ortiz-López R. Low-income status is an important risk factor in North East Mexican patients with cystic fibrosis. Rev Invest Clin 2014; 66:129-135. [PMID: 24960322] [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] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Accepted: 02/07/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND. Factors such as environment, income status, as well as access to proper healthcare influence the survival and quality of life of people affected by chronic diseases including cystic fibrosis (CF). Survival factors in Mexican patients with CF have not been reported before, even when it has been estimated that this disease could not be negligible in the Mexican population. OBJECTIVE. To compare the influence of the mutant allele ΔF508 and environmental factors on the survival of Mexican CF patients. MATERIAL AND METHODS. We collected epidemiological data of 40 patients molecularly tested between 1987 and 2008 in the Clínica de Fibrosis Quística from the Hospital Universitario of the Universidad Autónoma de Nuevo León in Northeastern México. Kaplan-Meier plots and survival statistics were estimated and compared. RESULTS. Survival analysis revealed statistical significance for low-income status (p = 3.13 x 10-6), cor pulmonale (p = 0.00169), severe pulmonary disease (p = 0.00136), and BMI ≤15 kg/m2 (p = 0.00678). Statistical significance was not observed for the predominant allele ΔF508 considering two (p = 0.992), one (p = 0.503) or no (p = 0.403) mutant allele. CONCLUSIONS. Low income status was the most detrimental factor; followed by cor pulmonale, severe pulmonary disease and BMI ≤ 15 kg/m2 for the survival in North East Mexican patients with CF. Carrying the ΔF508 allele did not influence survival.
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Affiliation(s)
- Celia Nohemí Sánchez-Domínguez
- Departamento de Bioquímica y Medicina Molecular. Facultad de Medicina. Centro de Investigación y Desarrollo en Ciencias de la Salud. Universidad Autónoma de Nuevo León
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Narváez-Zapata JA, Reyes-López MA. Recent advances and novel applications in microbial diversity estimation based on DNA analysis methods. ACTA ACUST UNITED AC 2011; 5:104-9. [PMID: 21504409 DOI: 10.2174/187221511796392088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2010] [Accepted: 03/22/2011] [Indexed: 11/22/2022]
Abstract
This review focuses on recent patents on the exploration and quantification of microbial diversity. Only the patents based on DNA analysis are considered. In general terms, the analysis of environmental samples can be investigated by using three main approaches: microarrays based technologies, genomes/metagenomes comparison and amplification and detection of operative taxonomic units. All patents can relate to the estimation of the microbial diversity, however, many of them were initially designed to detect important medical or agronomic microorganisms. Here, we briefly review recent technological achievements for DNA analysis that offer great potentials for the identification of species.
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Affiliation(s)
- J A Narváez-Zapata
- Centro de Biotecnología Genómica-Instituto Politécnico Nacional, Reynosa, Tamaulipas, México
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Juárez-Verdayes MA, Reyes-López MA, Cancino-Díaz ME, Muñoz-Salas S, Rodríguez-Martínez S, de la Serna FJZD, Hernández-Rodríguez CH, Cancino-Díaz JC. Isolation, vancomycin resistance and biofilm production of Staphylococcus epidermidis from patients with conjunctivitis, corneal ulcers, and endophthalmitis. Rev Latinoam Microbiol 2006; 48:238-246. [PMID: 18293657] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The infection frequency associated to bacterial conjunctivitis, corneal ulcers (CU), and endophthalmitis was studied along a five years period. The isolation and identification of microorganisms were performed by culture-based methods and biochemical test respectively. Also, a nested PCR to detect gram-negative and gram-positive bacteria in the clinical samples was assayed. Nested PCR was a more efficient method than culture to detect bacteria in the samples. The most frequently isolated species was Staphylococcus epidermidis, a bacterium commonly considered as a human saprophyte. The S. epidermidis strains from conjunctivitis, CU, and endophthalmitis exhibited 46, 33.9, and 34.1% of oxacilin-resistance respectively. A total of 28% of intermediate-vancomycin resistance (MIC = 8-16 microg/ml) was observed among S. epidermidis strain collection. The UPGMA cluster analysis of the multiresistance profile data of intermediate vancomycin-resistant S. epidermidis strains showed a high phenotypic diversity and no relationship between each group and their clinical origin. The biofilm formation capacity was broadly distributed (66%), particularly among intermediate-vancomycin strains (> 75%). In brief, S. epidermidis displayed a high diversity of antibiotic resistance profiles and biofilm formation capacity. These phenotypic traits could explain the high isolation frequency of S. epidermidis from ocular infections and oblige to review the saprophytic status of these bacteria.
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Affiliation(s)
- Marco Adán Juárez-Verdayes
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México
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Cancino-Diaz JC, Vargas-Rodríguez L, Grinberg-Zylberbaum N, Reyes-López MA, Domínguez-López ML, Pablo-Velazquez A, Cancino-Diaz ME. High levels of IgG class antibodies to recombinant HSP60 kDa of Yersinia enterocolitica in sera of patients with uveitis. Br J Ophthalmol 2004; 88:247-50. [PMID: 14736785 PMCID: PMC1772015 DOI: 10.1136/bjo.2003.023390] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
AIMS To determine the levels of IgG class antibodies to recombinant heat shock protein 60 kDa of Yersinia enterocolitica (rHSP60Ye), Klebsiella pneumoniae (rHSP60Kp), Escherichia coli (rHSP60Ec), Shigella flexneri (rHSP60Sf), and Streptococcus pyogenes (rHSP60Sp) in the serum of patients with HLA-B27 associated acute anterior uveitis (HLA-B27 associated AAU), idiopathic acute anterior uveitis (idiopathic AAU), pars planitis, Vogt-Koyanagi-Harada (VKH), and healthy subjects. METHODS The genes that code for HSP60Ye, HSP60Kp, HSP60Ec, HSP60Sf, and HSP60Sp were cloned by PCR from genomic DNA. The rHSPs were purified by affinity using a Ni-NTA resin. The serum levels of IgG class antibodies to rHSP60s were determined by ELISA in patients with uveitis (n = 42) and in healthy subjects (n = 25). RESULTS The majority of patients with uveitis had higher levels of IgG class antibodies to rHSP60Ye compared with levels of healthy subjects (p = 0.01), although these differences were only observed in the HLA-B27 associated AAU (p = 0.005) and in pars planitis patients (p = 0.001). The levels of IgG antibodies to the rHSP60Kp, rHSP60Sf, rHSP60Ec, and rHSP60Sp were similar in patients with uveitis and in healthy subjects (p>0.05). CONCLUSION The results suggest that HSP60Ye could be involved in the aetiology of HLA-B27 associated AAU and pars planitis.
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Affiliation(s)
- J C Cancino-Diaz
- Laboratorio de Inmunología ocular del Instituto de Oftalmología Fundación Conde de Valenciana, Mexico.
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Reyes-López MA, Méndez-Tenorio A, Maldonado-Rodríguez R, Doktycz MJ, Fleming JT, Beattie KL. Fingerprinting of prokaryotic 16S rRNA genes using oligodeoxyribonucleotide microarrays and virtual hybridization. Nucleic Acids Res 2003; 31:779-89. [PMID: 12527788 PMCID: PMC140498 DOI: 10.1093/nar/gkg132] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2002] [Revised: 11/01/2002] [Accepted: 11/01/2002] [Indexed: 11/14/2022] Open
Abstract
An oligonucleotide microarray hybridization system to differentiate microbial species was designed and tested. Seven microbial species were studied, including one Bacillus and six Pseudomonas strains. DNA sequences near the 5' end of 16S rRNA genes were aligned and two contiguous regions of high variability, flanked by highly conserved sequences, were found. The conserved sequences were used to design PCR primers which efficiently amplified these polymorphic regions from all seven species. The amplicon sequences were used to design 88 9mer hybridization probes which were arrayed onto glass slides. Single-stranded, fluorescence-tagged PCR products were hybridized to the microarrays at 15 degrees C. The experimental results were compared with the DeltaG(0) values for all matched and mismatched duplexes possible between the synthetic probes and the 16S target sequences of the seven test species, calculated using a 'virtual hybridization' software program. Although the observed hybridization patterns differed significantly from patterns predicted solely on the basis of perfect sequence matches, a unique hybridization fingerprint was obtained for each of the species, including closely related Pseudomonas species, and there was a reasonable correlation between the intensity of observed hybridization signals and the calculated DeltaG(0) values. The results suggest that both perfect and mismatched pairings can contribute to microbial identification by hybridization fingerprinting.
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Affiliation(s)
- Miguel Angel Reyes-López
- Life Sciences Division, Oak Ridge National Laboratory, Building 4500-S, MS 6123, Bethel Valley Road, PO Box 2008, Oak Ridge, TN 37831, USA
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