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Valdez-Palomares F, Aguilar JR, Pérez-Campos E, Mayoral LPC, Meraz-Cruz N, Palacios-González B. Veillonella and Bacteroides are associated with gestational diabetes mellitus exposure and gut microbiota immaturity. PLoS One 2024; 19:e0302726. [PMID: 38743706 PMCID: PMC11093295 DOI: 10.1371/journal.pone.0302726] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 04/10/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Dysbiosis during childhood impacts the configuration and maturation of the microbiota. The immaturity of the infant microbiota is linked with the development of inflammatory, allergic, and dysmetabolic diseases. AIMS To identify taxonomic changes associated with age and GDM and classify the maturity of the intestinal microbiota of children of mothers with GDM and children without GDM (n-GDM). METHODS Next-generation sequencing was used to analyze the V3-V4 region of 16S rRNA gene. QIIME2 and Picrust2 were used to determine the difference in the relative abundance of bacterial genera between the study groups and to predict the functional profile of the intestinal microbiota. RESULTS According to age, the older GDM groups showed a lower alpha diversity and different abundance of Enterobacteriaceae, Veillonella, Clostridiales, and Bacteroides. Regarding the functional profile, PWY-7377 and K05895 associated with Vitamin B12 metabolism were reduced in GDM groups. Compared to n-GDM group, GDM offspring had microbiota immaturity as age-discriminatory taxa in random forest failed to classify GDM offspring according to developmental age (OOB error 81%). Conclusion. Offspring from mothers with GDM have a distinctive taxonomic profile related to taxa associated with gut microbiota immaturity.
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Affiliation(s)
- Fernanda Valdez-Palomares
- Laboratorio de Envejecimiento Saludable, Instituto Nacional de Medicina Genómica, Centro de Investigación Sobre Envejecimiento (CIE-CINVESTAV Sur), Ciudad de México, México
| | | | - Eduardo Pérez-Campos
- Unidad de Bioquímica e Inmunología, Tecnológico Nacional de México-Instituto Tecnológico de Oaxaca, Oaxaca, México
| | - Laura Pérez-Campos Mayoral
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma “Benito Juárez” de Oaxaca, Oaxaca, México
| | - Noemi Meraz-Cruz
- Unidad de Vinculación Científica de la Facultad de Medicina UNAM en Instituto Nacional de Medicina Genómica, Ciudad de México, México
| | - Berenice Palacios-González
- Laboratorio de Envejecimiento Saludable, Instituto Nacional de Medicina Genómica, Centro de Investigación Sobre Envejecimiento (CIE-CINVESTAV Sur), Ciudad de México, México
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2
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Rojas-Granados A, Pérez-Campos E, Sanchez-Sanchez M, Chávez MAM, Pérez-Campos-Mayoral L, Ángeles-Castellanos M. Prevalence of myocardial bridges in the Mexican population: A morphometric and histological analysis. Morphologie 2023; 108:100760. [PMID: 38157748 DOI: 10.1016/j.morpho.2023.100760] [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: 11/21/2023] [Revised: 12/15/2023] [Accepted: 12/16/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Myocardial bridge (MB) is described as an abnormal band of myocardium covering a variable portion of any coronary artery. METHODS The current study explores the presence of MB throughout the coronary arterial system and provides a morphometric description through instrumented dissection of a sample of 100 human hearts. The study shows a higher prevalence of MB in the Mexican population than in previous reports. RESULTS In the total sample (n=100), MB was identified in 96% of it. A total of 421 MBs were observed, with a mean of 4.38mm (±0.28) per dissected heart. The most frequently affected vessel is the anterior interventricular artery where a total of 52 MBs were found, of the total sample studied. DISCUSSION The high prevalence of MB among Mexican patients could be the result of a genetic association for this population or the neoformation of MB after birth due to lifestyle-associated factors. Further studies are required to better understand the high prevalence of MB among Mexican subjects.
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Affiliation(s)
- A Rojas-Granados
- Departamento de Anatomia, Facultad de Medicina. Universidad Nacional Autónoma de México, México, Mexico
| | - E Pérez-Campos
- Tecnológico Nacional de México/IT, Oaxaca, Oaxaca City, Mexico
| | - M Sanchez-Sanchez
- Posgrado Facultad de Odontologia, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, Mexico
| | - M A M Chávez
- Facultad de Medicina y Cirugia, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, Mexico
| | - L Pérez-Campos-Mayoral
- Facultad de Medicina y Cirugia, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, Mexico
| | - M Ángeles-Castellanos
- Departamento de Anatomia, Facultad de Medicina. Universidad Nacional Autónoma de México, México, Mexico; Departamento de Innovacion en Material Biologico Humano, Facultad de Medicina, Universidad Nacional Autonoma de Mexico, México, Mexico.
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3
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García-Montalvo IA, Matías-Pérez D, Hernández-Bautista E, Pérez-Campos E. Inclusion of carotenoids in dietary habits as an alternative to prevent age-related macular degeneration. Front Nutr 2023; 9:1063517. [PMID: 36698471 PMCID: PMC9868752 DOI: 10.3389/fnut.2022.1063517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 12/14/2022] [Indexed: 01/11/2023] Open
Affiliation(s)
- Iván Antonio García-Montalvo
- Division of Graduate Studies and Research, National Institute of Technology of Mexico/Technological Institute of Oaxaca, Oaxaca, Mexico
| | - Diana Matías-Pérez
- Division of Graduate Studies and Research, National Institute of Technology of Mexico/Technological Institute of Oaxaca, Oaxaca, Mexico
| | - Emilio Hernández-Bautista
- Division of Graduate Studies and Research, National Institute of Technology of Mexico/Technological Institute of Oaxaca, Oaxaca, Mexico
| | - Eduardo Pérez-Campos
- Division of Graduate Studies and Research, National Institute of Technology of Mexico/Technological Institute of Oaxaca, Oaxaca, Mexico
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Ramos-Martínez I, Ramos-Martínez E, Cerbón M, Pérez-Torres A, Pérez-Campos Mayoral L, Hernández-Huerta MT, Martínez-Cruz M, Pérez-Santiago AD, Sánchez-Medina MA, García-Montalvo IA, Zenteno E, Matias-Cervantes CA, Ojeda-Meixueiro V, Pérez-Campos E. The Role of B Cell and T Cell Glycosylation in Systemic Lupus Erythematosus. Int J Mol Sci 2023; 24:ijms24010863. [PMID: 36614306 PMCID: PMC9820943 DOI: 10.3390/ijms24010863] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 01/05/2023] Open
Abstract
Glycosylation is a post-translational modification that affects the stability, structure, antigenicity and charge of proteins. In the immune system, glycosylation is involved in the regulation of ligand-receptor interactions, such as in B-cell and T-cell activating receptors. Alterations in glycosylation have been described in several autoimmune diseases, such as systemic lupus erythematosus (SLE), in which alterations have been found mainly in the glycosylation of B lymphocytes, T lymphocytes and immunoglobulins. In immunoglobulin G of lupus patients, a decrease in galactosylation, sialylation, and nucleotide fucose, as well as an increase in the N-acetylglucosamine bisector, are observed. These changes in glycoisolation affect the interactions of immunoglobulins with Fc receptors and are associated with pericarditis, proteinuria, nephritis, and the presence of antinuclear antibodies. In T cells, alterations have been described in the glycosylation of receptors involved in activation, such as the T cell receptor; these changes affect the affinity with their ligands and modulate the binding to endogenous lectins such as galectins. In T cells from lupus patients, a decrease in galectin 1 binding is observed, which could favor activation and reduce apoptosis. Furthermore, these alterations in glycosylation correlate with disease activity and clinical manifestations, and thus have potential use as biomarkers. In this review, we summarize findings on glycosylation alterations in SLE and how they relate to immune system defects and their clinical manifestations.
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Affiliation(s)
- Ivan Ramos-Martínez
- Departamento de Medicina y Zootecnia de Cerdos, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Edgar Ramos-Martínez
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
- Escuela de Ciencias, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca 68120, Mexico
| | - Marco Cerbón
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología “Isidro Espinosa de los Reyes”—Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Armando Pérez-Torres
- Departamento de Biología Celular y Tisular, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | | | - María Teresa Hernández-Huerta
- CONACyT, Facultad de Medicina y Cirugía, Universidad Autónoma “Benito Juárez” de Oaxaca (UABJO), Oaxaca 68020, Mexico
| | | | | | | | | | - Edgar Zenteno
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
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Pérez-Campos Mayoral L, Hernández-Huerta MT, Pérez-Campos Mayoral E, Matias Cervantes CA, Pérez-Campos E. Re. Re.: "Immunothrombotic dysregulation in Chagas disease and COVID19: a comparative study of anticoagulation". Mol Cell Biochem 2023; 478:361-362. [PMID: 35829869 PMCID: PMC9277605 DOI: 10.1007/s11010-022-04511-3] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 06/22/2022] [Indexed: 02/02/2023]
Abstract
Re. Re.: "Immunothrombotic dysregulation in Chagas disease (CD) and COVID-19: a comparative study of anticoagulation": In the commentary on our paper, Hasslocher-Moreno made the point that indeterminate and digestive forms are not related to thromboembolic events, only thrombogenic alterations occur in CD with cardiopathy, however there is indirect evidence related to thombotic alterations, such as cerebral thrombosis. Our assertion is based on previous data discussed in this letter.
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Affiliation(s)
- Laura Pérez-Campos Mayoral
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma “Benito Juárez” de Oaxaca, 68020 Oaxaca, Mexico
| | | | - Eduardo Pérez-Campos Mayoral
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma “Benito Juárez” de Oaxaca, 68020 Oaxaca, Mexico
| | | | - Eduardo Pérez-Campos
- Tecnológico Nacional de México/IT Oaxaca, 68030 Oaxaca, Mexico ,Laboratorio de Patología Clínica “Dr. Eduardo Pérez Ortega”, 68000 Oaxaca, Mexico
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6
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Ambros-Antemate JF, Reyes-Flores A, Argueta-Figueroa L, Ramírez-Ramírez R, Vargas-Treviño M, Gutiérrez-Gutiérrez J, Mayoral EPC, Pérez-Campos E, Flores-Mejía LA, Torres-Rosas R. Accuracy of machine learning algorithms for the assessment of upper-limb motor impairments in patients with post-stroke hemiparesis: A systematic review and meta-analysis. ADV CLIN EXP MED 2022; 31:1309-1318. [PMID: 36047897 DOI: 10.17219/acem/152596] [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: 03/31/2022] [Revised: 05/25/2022] [Accepted: 08/03/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND The assessment of motor function is vital in post-stroke rehabilitation protocols, and it is imperative to obtain an objective and quantitative measurement of motor function. There are some innovative machine learning algorithms that can be applied in order to automate the assessment of upper extremity motor function. OBJECTIVES To perform a systematic review and meta-analysis of the efficacy of machine learning algorithms for assessing upper limb motor function in post-stroke patients and compare these algorithms to clinical assessment. MATERIAL AND METHODS The protocol was registered in the International Prospective Register of Systematic Reviews (PROSPERO) database. The review was carried out according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and the Cochrane Handbook for Systematic Reviews of Interventions. The search was performed using 6 electronic databases. The meta-analysis was performed with the data from the correlation coefficients using a random model. RESULTS The initial search yielded 1626 records, but only 8 studies fully met the eligibility criteria. The studies reported strong and very strong correlations between the algorithms tested and clinical assessment. The meta-analysis revealed a lack of homogeneity (I2 = 85.29%, Q = 48.15), which is attributable to the heterogeneity of the included studies. CONCLUSION Automated systems using machine learning algorithms could support therapists in assessing upper extremity motor function in post-stroke patients. However, to draw more robust conclusions, methodological designs that minimize the risk of bias and increase the quality of the methodology of future studies are required.
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Affiliation(s)
| | - Adriana Reyes-Flores
- School of Medicine and Surgery, Benito Juárez Autonomous University of Oaxaca, Mexico
| | | | | | - Marciano Vargas-Treviño
- School of Biological Systems and Technological Innovation, Benito Juárez Autonomous University of Oaxaca, Mexico
| | - Jaime Gutiérrez-Gutiérrez
- School of Biological Systems and Technological Innovation, Benito Juárez Autonomous University of Oaxaca, Mexico
| | | | - Eduardo Pérez-Campos
- Center for Research UNAM-UABJO, Benito Juárez Autonomous University of Oaxaca, Mexico
| | | | - Rafael Torres-Rosas
- Immunology Laboratory, Cencer for Health and Diseases Sciences Research, School of Dentistry, Benito Juárez Autonomous University of Oaxaca, Mexico
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7
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Ramos-Martínez E, Ramos-Martínez I, Valencia J, Ramos-Martínez JC, Hernández-Zimbrón L, Rico-Luna A, Pérez-Campos E, Pérez-Campos Mayoral L, Cerbón M. Modulatory role of prolactin in type 1 diabetes. Horm Mol Biol Clin Investig 2022; 44:79-88. [PMID: 35852366 DOI: 10.1515/hmbci-2022-0008] [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: 01/16/2022] [Accepted: 06/30/2022] [Indexed: 11/15/2022]
Abstract
Abstract
Objectives
Patients with type 1 diabetes mellitus have been reported to have elevated prolactin levels and a possible relationship between prolactin levels and the development of the disease has been proposed. However, some studies show that prolactin mediates beneficial functions in beta cells. Therefore, we review information on the roles of prolactin in type 1 diabetes mellitus.
Content
Here we summarize the functions of prolactin in the immune system and in pancreatic beta cells, in addition, we describe studies related to PRL levels, its regulation and alterations of secretion in patients with type 1 diabetes mellitus.
Summary
Studies in murine models have shown that prolactin protects beta cells from apoptosis, stimulates their proliferation and promotes pancreatic islet revascularization. In addition, some studies in patients with type 1 diabetes mellitus have shown that elevated prolactin levels correlate with better disease control.
Outlook
Prolactin treatment appears to be a promising strategy to improve beta-cell vascularization and proliferation in transplantation and immunotherapies.
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Affiliation(s)
- Edgar Ramos-Martínez
- Facultad de Química , Universidad Nacional Autónoma de México , Ciudad de México , México
| | - Ivan Ramos-Martínez
- Departamento de Medicina y Zootecnia de Cerdos, Facultad de Medicina Veterinaria y Zootecnia , Universidad Nacional Autónoma de México , Ciudad de México , México
| | - Jorge Valencia
- Endocrine Research Unit , UMAE Hospital de Especialidades, Instituto Mexicano del Seguro Social , Ciudad de México , México
| | - Juan Carlos Ramos-Martínez
- Cardiology Department , Hospital General Regional Lic Ignacio Garcia Tellez IMSS , Mérida , Yucatán , México
| | - Luis Hernández-Zimbrón
- Escuela Nacional de Estudios Superiores, Licenciatura en Optometría, Unidad León , Universidad Nacional Autónoma de México , Ciudad de México , México
| | - Anaiza Rico-Luna
- Facultad de Química , Universidad Nacional Autónoma de México , Ciudad de México , México
| | | | - Laura Pérez-Campos Mayoral
- Research Centre Medicine UNAM-UABJO. Facultad de Medicina , Universidad Autónoma “Benito Juárez” de Oaxaca , Oaxaca , México
| | - Marco Cerbón
- Unidad de Investigación en Reproducción Humana. Instituto Nacional de Perinatología-Facultad de Química , Universidad Nacional Autónoma de México , Ciudad de México , México
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Hernández-Huerta MT, Pérez-Campos Mayoral L, Matias-Cervantes CA, Díaz CR, Parada EC, Pérez-Campos Mayoral E, Baltierrez-Hoyos R, Cruz MM, Andrade GM, Pérez-Campos E. 3'-UTR of the SARS-CoV-2 genome as a possible source of piRNAs. Genes Dis 2022; 10:668-670. [PMID: 35694376 PMCID: PMC9174062 DOI: 10.1016/j.gendis.2022.05.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 05/18/2022] [Accepted: 05/21/2022] [Indexed: 10/26/2022] Open
Affiliation(s)
- María Teresa Hernández-Huerta
- CONACyT, Faculty of Medicine and Surgery, Autonomous University "Benito Juárez" of Oaxaca (UABJO), Oaxaca 68020, Mexico
| | - Laura Pérez-Campos Mayoral
- Research Center, Faculty of Medicine UNAM-UABJO, Autonomous University "Benito Juárez" of Oaxaca (UABJO), Oaxaca 68020, Mexico
| | | | - Carlos Romero Díaz
- CONACyT, Faculty of Medicine and Surgery, Autonomous University "Benito Juárez" of Oaxaca (UABJO), Oaxaca 68020, Mexico
| | - Eli Cruz Parada
- National Technology of Mexico/IT Oaxaca, Oaxaca de Juárez, Oaxaca 68030, Mexico
| | - Eduardo Pérez-Campos Mayoral
- Research Center, Faculty of Medicine UNAM-UABJO, Autonomous University "Benito Juárez" of Oaxaca (UABJO), Oaxaca 68020, Mexico
| | - Rafael Baltierrez-Hoyos
- CONACyT, Faculty of Medicine and Surgery, Autonomous University "Benito Juárez" of Oaxaca (UABJO), Oaxaca 68020, Mexico
| | | | - Gabriel Mayoral Andrade
- Research Center, Faculty of Medicine UNAM-UABJO, Autonomous University "Benito Juárez" of Oaxaca (UABJO), Oaxaca 68020, Mexico
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9
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Rodal Canales FJ, Pérez-Campos Mayoral L, Hernández-Huerta MT, Sánchez Navarro LM, Matias-Cervantes CA, Martínez Cruz M, Cruz Parada E, Zenteno E, Ramos-Martínez EG, Pérez-Campos Mayoral E, Romero Díaz C, Pérez-Campos E. Interaction of Spike protein and lipid membrane of SARS-CoV-2 with Ursodeoxycholic acid, an in-silico analysis. Sci Rep 2021; 11:22288. [PMID: 34782703 PMCID: PMC8593036 DOI: 10.1038/s41598-021-01705-5] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 11/01/2021] [Indexed: 12/18/2022] Open
Abstract
Numerous repositioned drugs have been sought to decrease the severity of SARS-CoV-2 infection. It is known that among its physicochemical properties, Ursodeoxycholic Acid (UDCA) has a reduction in surface tension and cholesterol solubilization, it has also been used to treat cholesterol gallstones and viral hepatitis. In this study, molecular docking was performed with the SARS-CoV-2 Spike protein and UDCA. In order to confirm this interaction, we used Molecular Dynamics (MD) in “SARS-CoV-2 Spike protein-UDCA”. Using another system, we also simulated MD with six UDCA residues around the Spike protein at random, naming this “SARS-CoV-2 Spike protein-6UDCA”. Finally, we evaluated the possible interaction between UDCA and different types of membranes, considering the possible membrane conformation of SARS-CoV-2, this was named “SARS-CoV-2 membrane-UDCA”. In the “SARS-CoV-2 Spike protein-UDCA”, we found that UDCA exhibits affinity towards the central region of the Spike protein structure of − 386.35 kcal/mol, in a region with 3 alpha helices, which comprises residues from K986 to C1032 of each monomer. MD confirmed that UDCA remains attached and occasionally forms hydrogen bonds with residues R995 and T998. In the presence of UDCA, we observed that the distances between residues atoms OG1 and CG2 of T998 in the monomers A, B, and C in the prefusion state do not change and remain at 5.93 ± 0.62 and 7.78 ± 0.51 Å, respectively, compared to the post-fusion state. Next, in “SARS-CoV-2 Spike protein-6UDCA”, the three UDCA showed affinity towards different regions of the Spike protein, but only one of them remained bound to the region between the region's heptad repeat 1 and heptad repeat 2 (HR1 and HR2) for 375 ps of the trajectory. The RMSD of monomer C was the smallest of the three monomers with a value of 2.89 ± 0.32, likewise, the smallest RMSF was also of the monomer C (2.25 ± 056). In addition, in the simulation of “SARS-CoV-2 membrane-UDCA”, UDCA had a higher affinity toward the virion-like membrane; where three of the four residues remained attached once they were close (5 Å, to the centre of mass) to the membrane by 30 ns. However, only one of them remained attached to the plasma-like membrane and this was in a cluster of cholesterol molecules. We have shown that UDCA interacts in two distinct regions of Spike protein sequences. In addition, UDCA tends to stay bound to the membrane, which could potentially reduce the internalization of SARS-CoV-2 in the host cell.
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Affiliation(s)
- Francisco Javier Rodal Canales
- Research Centre Faculty of Medicine UNAM-UABJO, Faculty of Medicine and Surgery, Autonomous University "Benito Juárez" of Oaxaca, 68020, Oaxaca, Mexico
| | - Laura Pérez-Campos Mayoral
- Research Centre Faculty of Medicine UNAM-UABJO, Faculty of Medicine and Surgery, Autonomous University "Benito Juárez" of Oaxaca, 68020, Oaxaca, Mexico
| | | | - Luis Manuel Sánchez Navarro
- Research Centre Faculty of Medicine UNAM-UABJO, Faculty of Medicine and Surgery, Autonomous University "Benito Juárez" of Oaxaca, 68020, Oaxaca, Mexico
| | | | | | - Eli Cruz Parada
- National Technology of Mexico/IT Oaxaca, 68030, Oaxaca, Mexico
| | - Edgar Zenteno
- Faculty of Medicine, National Autonomous University of Mexico, 04360, Mexico City, Mexico
| | | | - Eduardo Pérez-Campos Mayoral
- Research Centre Faculty of Medicine UNAM-UABJO, Faculty of Medicine and Surgery, Autonomous University "Benito Juárez" of Oaxaca, 68020, Oaxaca, Mexico
| | - Carlos Romero Díaz
- Research Centre Faculty of Medicine UNAM-UABJO, Faculty of Medicine and Surgery, Autonomous University "Benito Juárez" of Oaxaca, 68020, Oaxaca, Mexico.
| | - Eduardo Pérez-Campos
- National Technology of Mexico/IT Oaxaca, 68030, Oaxaca, Mexico. .,Clinical Pathology Laboratory, "Eduardo Pérez Ortega", 68000, Oaxaca, Mexico.
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10
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Domínguez-Díaz LR, Eugenia Ochoa M, Soto-Castro D, Farfán N, Morales-Chamorro M, Yépez-Mulia L, Pérez-Campos E, Santillan R, Moreno-Rodríguez A. In vitro, ex vivo and in vivo short-term screening of DHEA nitrate derivatives activity over Trypanosoma cruzi Ninoa and TH strains from Oaxaca State, México. Bioorg Med Chem 2021; 48:116417. [PMID: 34571489 DOI: 10.1016/j.bmc.2021.116417] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 11/19/2022]
Abstract
Chagas disease is a health problem that affects millions of persons, currently Nifurtimox (Nfx) and Benznidazole (Bz) are the unique drugs to treat it. However, these drugs produce adverse effects and high toxicity, which has motivated the search for new candidate drugs. Based on reports about the extensive biological activity of steroidal nitrate esters, in this study three nitrate esters steroids (1b, 2b and 4b) were synthetized and characterized from Dehydroepiandrosterone (DHEA, 1a), 19-hydroxy-DHEA (2a), and Androst-5-en-3β,17β-diol (4a), respectively. In addition, compounds 3a and 3b were obtained by introducing an α-ethynyl and a β-hydroxyl groups at position 17 of 2b and further nitration of the hydroxyl group. The trypanocidal activity of these steroids was evaluated in vitro against the epimastigote stage of two T. cruzi strains, Ninoa and TH, and their cytotoxicity over J774.2 macrophage cell line was assayed. Compounds 3a, 3b, and 4a shown higher trypanocidal activity than Bz and Nfx against epimastigotes of Ninoa strain, whereas DHEA (1a) and its nitrate derivative 1b showed higher activity than the reference drugs against the TH strain epimastigote. None of the compounds showed activity in the ex vivo assays against the blood trypomastigote of both strains. Interestingly, the selectivity index of Androst-5-en-3β,17β-diol 4a was almost twice the value of Nfx and 50 times more than Bz, against Ninoa and TH strains, respectively. Therefore, compound 4a could represent a valuable starting point toward the optimization of steroid derivatives as trypanocidal agents.
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Affiliation(s)
| | - Ma Eugenia Ochoa
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN, Apdo. Postal 14-740, C.P. 07000 CDMX, Mexico
| | - Delia Soto-Castro
- CONACyT - Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, Unidad Oaxaca, Hornos 1003, C.P. 71230, Santa Cruz Xoxocotlán, Oaxaca, Mexico
| | - Norberto Farfán
- Facultad de Química, Departamento de Química Orgánica, Universidad Nacional Autónoma de México, C.P. 04510 CDMX, Mexico
| | - Maricela Morales-Chamorro
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN, Apdo. Postal 14-740, C.P. 07000 CDMX, Mexico
| | - Lilian Yépez-Mulia
- Unidad de Investigación Médica en Enfermedades Infecciosas y Parasitarias, UMAE Hospital de Pediatría, Centro Médico Siglo XXI, Instituto Mexicano del Seguro Social, C.P. 06720 CDMX, Mexico
| | - Eduardo Pérez-Campos
- Facultad de Ciencias Químicas, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68120, Mexico
| | - Rosa Santillan
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN, Apdo. Postal 14-740, C.P. 07000 CDMX, Mexico.
| | - Adriana Moreno-Rodríguez
- Facultad de Ciencias Químicas, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68120, Mexico.
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11
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Pérez-Campos Mayoral L, Hernández-Huerta MT, Papy-García D, Barritault D, Zenteno E, Sánchez Navarro LM, Pérez-Campos Mayoral E, Matias Cervantes CA, Martínez Cruz M, Mayoral Andrade G, López Cervantes M, Vázquez Martínez G, López Sánchez C, Pina Canseco S, Martínez Cruz R, Pérez-Campos E. Immunothrombotic dysregulation in chagas disease and COVID-19: a comparative study of anticoagulation. Mol Cell Biochem 2021; 476:3815-3825. [PMID: 34110554 PMCID: PMC8190527 DOI: 10.1007/s11010-021-04204-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 06/03/2021] [Indexed: 12/27/2022]
Abstract
Chagas and COVID-19 are diseases caused by Trypanosoma cruzi and SARS-CoV-2, respectively. These diseases present very different etiological agents despite showing similarities such as susceptibility/risk factors, pathogen-associated molecular patterns (PAMPs), recognition of glycosaminoglycans, inflammation, vascular leakage hypercoagulability, microthrombosis, and endotheliopathy; all of which suggest, in part, treatments with similar principles. Here, both diseases are compared, focusing mainly on the characteristics related to dysregulated immunothrombosis. Given the in-depth investigation of molecules and mechanisms related to microthrombosis in COVID-19, it is necessary to reconsider a prompt treatment of Chagas disease with oral anticoagulants.
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Affiliation(s)
- Laura Pérez-Campos Mayoral
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, 68020, México
| | | | | | | | - Edgar Zenteno
- Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, 04360, México
| | | | - Eduardo Pérez-Campos Mayoral
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, 68020, México
| | | | | | - Gabriel Mayoral Andrade
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, 68020, México
| | | | | | - Claudia López Sánchez
- Tecnológico Nacional de México / Instituto Tecnológico de Oaxaca, Oaxaca, 68030, México
| | - Socorro Pina Canseco
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, 68020, México
| | - Ruth Martínez Cruz
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, 68020, México
| | - Eduardo Pérez-Campos
- Tecnológico Nacional de México / Instituto Tecnológico de Oaxaca, Oaxaca, 68030, México. .,Laboratorio de Patología Clínica "Eduardo Pérez Ortega", Oaxaca, 68000, México.
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12
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Ramos-Martínez E, Hernández-González L, Ramos-Martínez I, Pérez-Campos Mayoral L, López-Cortés GI, Pérez-Campos E, Mayoral Andrade G, Hernández-Huerta MT, José MV. Multiple Origins of Extracellular DNA Traps. Front Immunol 2021; 12:621311. [PMID: 33717121 PMCID: PMC7943724 DOI: 10.3389/fimmu.2021.621311] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 01/06/2021] [Indexed: 01/21/2023] Open
Abstract
Extracellular DNA traps (ETs) are evolutionarily conserved antimicrobial mechanisms present in protozoa, plants, and animals. In this review, we compare their similarities in species of different taxa, and put forward the hypothesis that ETs have multiple origins. Our results are consistent with a process of evolutionary convergence in multicellular organisms through the application of a congruency test. Furthermore, we discuss why multicellularity is related to the presence of a mechanism initiating the formation of ETs.
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Affiliation(s)
- Edgar Ramos-Martínez
- School of Sciences, Benito Juárez Autonomous University of Oaxaca, Oaxaca, Mexico
| | | | - Iván Ramos-Martínez
- Glycobiology, Cell Growth and Tissue Repair Research Unit (Gly-CRRET), Université Paris Est Créteil (UPEC), Créteil, France
| | - Laura Pérez-Campos Mayoral
- Research Centre Medicine UNAM-UABJO, Faculty of Medicine, Benito Juárez Autonomous University of Oaxaca, Oaxaca, Mexico
| | | | - Eduardo Pérez-Campos
- Biochemistry and Immunology Unit, National Technological of Mexico/ITOaxaca, Oaxaca, Mexico
- Research Centre Medicine UNAM-UABJO, Faculty of Medicine, Benito Juárez Autonomous University of Oaxaca, Oaxaca, Mexico
| | - Gabriel Mayoral Andrade
- Research Centre Medicine UNAM-UABJO, Faculty of Medicine, Benito Juárez Autonomous University of Oaxaca, Oaxaca, Mexico
| | | | - Marco V. José
- Theoretical Biology Group, National Autonomous University of Mexico, Mexico City, Mexico
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13
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Mayoral Andrade G, Vásquez Martínez G, Pérez-Campos Mayoral L, Hernández-Huerta MT, Zenteno E, Pérez-Campos Mayoral E, Martínez Cruz M, Martínez Cruz R, Matias-Cervantes CA, Meraz Cruz N, Romero Díaz C, Cruz-Parada E, Pérez-Campos E. Molecules and Prostaglandins Related to Embryo Tolerance. Front Immunol 2020; 11:555414. [PMID: 33329514 PMCID: PMC7710691 DOI: 10.3389/fimmu.2020.555414] [Citation(s) in RCA: 5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 10/19/2020] [Indexed: 12/20/2022] Open
Abstract
It is generally understood that the entry of semen into the female reproductive tract provokes molecular and cellular changes facilitating conception and pregnancy. We show a broader picture of the participation of prostaglandins in the fertilization, implantation and maintenance of the embryo. A large number of cells and molecules are related to signaling networks, which regulate tolerance to implantation and maintenance of the embryo and fetus. In this work, many of those cells and molecules are analyzed. We focus on platelets, polymorphonuclear leukocytes, and group 2 innate lymphoid cells involved in embryo tolerance in order to have a wider view of how prostaglandins participate. The combination of platelets and neutrophil extracellular traps (Nets), uterine innate lymphoid cells (uILC), Treg cells, NK cells, and sex hormones have an important function in immunological tolerance. In both animals and humans, the functions of these cells can be regulated by prostaglandins and soluble factors in seminal plasma to achieve an immunological balance, which maintains fetal-maternal tolerance. Prostaglandins, such as PGI2 and PGE2, play an important role in the suppression of the previously mentioned cells. PGI2 inhibits platelet aggregation, in addition to IL-5 and IL-13 expression in ILC2, and PGE2 inhibits some neutrophil functions, such as chemotaxis and migration processes, leukotriene B4 (LTB4) biosynthesis, ROS production, and the formation of extracellular traps, which could help prevent trophoblast injury and fetal loss. The implications are related to fertility in female when seminal fluid is deposited in the vagina or uterus.
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Affiliation(s)
- Gabriel Mayoral Andrade
- Research Centre Medicine National Autonomous University of Mexico-Benito Juárez Autonomous University of Oaxaca (UNAM-UABJO), Faculty of Medicine, Benito Juárez Autonomous University of Oaxaca, Oaxaca, Mexico
| | | | - Laura Pérez-Campos Mayoral
- Research Centre Medicine National Autonomous University of Mexico-Benito Juárez Autonomous University of Oaxaca (UNAM-UABJO), Faculty of Medicine, Benito Juárez Autonomous University of Oaxaca, Oaxaca, Mexico
| | | | - Edgar Zenteno
- Department of Biochemistry, School of Medicine, UNAM, Mexico City, México
| | - Eduardo Pérez-Campos Mayoral
- Research Centre Medicine National Autonomous University of Mexico-Benito Juárez Autonomous University of Oaxaca (UNAM-UABJO), Faculty of Medicine, Benito Juárez Autonomous University of Oaxaca, Oaxaca, Mexico
| | | | - Ruth Martínez Cruz
- Research Centre Medicine National Autonomous University of Mexico-Benito Juárez Autonomous University of Oaxaca (UNAM-UABJO), Faculty of Medicine, Benito Juárez Autonomous University of Oaxaca, Oaxaca, Mexico
| | | | - Noemi Meraz Cruz
- School of Medicine, Branch at National Institute of Genomic Medicine, Mexico City, Mexico
| | - Carlos Romero Díaz
- Research Centre Medicine National Autonomous University of Mexico-Benito Juárez Autonomous University of Oaxaca (UNAM-UABJO), Faculty of Medicine, Benito Juárez Autonomous University of Oaxaca, Oaxaca, Mexico
| | - Eli Cruz-Parada
- Biochemistry and Immunology Unit, National Technological of Mexico/ITOaxaca, Oaxaca, Mexico
| | - Eduardo Pérez-Campos
- Biochemistry and Immunology Unit, National Technological of Mexico/ITOaxaca, Oaxaca, Mexico
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14
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Mayoral EPC, Hernández-Huerta MT, Pérez-Campos Mayoral L, Matias-Cervantes CA, Mayoral-Andrade G, Barrios LÁL, Pérez-Campos E. Factors related to asymptomatic or severe COVID-19 infection. Med Hypotheses 2020; 144:110296. [PMID: 33254487 PMCID: PMC7513914 DOI: 10.1016/j.mehy.2020.110296] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/11/2020] [Accepted: 09/18/2020] [Indexed: 01/22/2023]
Abstract
The factors that may contribute to a COVID-19 patient remaining in the asymptomatic stage, or to the infection evolving into the more serious stages are examined. In particular, we refer to the TMPRSS2 expression profile, balance of androgen and estrogen, blood group-A and/or B, nonsynonymous mutations in ORF3, and proteins NS7b and NS8 in SARS-CoV-2. Also, we review other factors related to the susceptibility and pathogenicity of SARS-CoV-2.
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Affiliation(s)
- Eduardo Pérez-Campos Mayoral
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68020, Mexico; Laboratorio de Patología Clinica "Eduardo Pérez Ortega", Oaxaca 68000, Mexico
| | - María Teresa Hernández-Huerta
- CONACyT, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68020, Mexico; Laboratorio de Patología Clinica "Eduardo Pérez Ortega", Oaxaca 68000, Mexico
| | - Laura Pérez-Campos Mayoral
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68020, Mexico; Laboratorio de Patología Clinica "Eduardo Pérez Ortega", Oaxaca 68000, Mexico.
| | - Carlos Alberto Matias-Cervantes
- CONACyT, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68020, Mexico; Laboratorio de Patología Clinica "Eduardo Pérez Ortega", Oaxaca 68000, Mexico
| | - Gabriel Mayoral-Andrade
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68020, Mexico; Laboratorio de Patología Clinica "Eduardo Pérez Ortega", Oaxaca 68000, Mexico
| | - Luis Ángel Laguna Barrios
- Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68020, Mexico; Laboratorio de Patología Clinica "Eduardo Pérez Ortega", Oaxaca 68000, Mexico
| | - Eduardo Pérez-Campos
- Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68020, Mexico; Tecnológico Nacional de México/IT Oaxaca, Oaxaca 68020, Mexico; Laboratorio de Patología Clinica "Eduardo Pérez Ortega", Oaxaca 68000, Mexico.
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15
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Pérez-Campos Mayoral L, Hernández-Huerta MT, Mayoral-Andrade G, Pérez-Campos Mayoral E, Pérez-Campos E. A letter to the editor on "World Health Organization declares global emergency: A review of the 2019 novel Coronavirus (COVID-19)". Int J Surg 2020; 79:163-164. [PMID: 32473239 PMCID: PMC7253970 DOI: 10.1016/j.ijsu.2020.05.066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 01/08/2023]
Affiliation(s)
- Laura Pérez-Campos Mayoral
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca, 68020, Mexico.
| | | | - Gabriel Mayoral-Andrade
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca, 68020, Mexico.
| | - Eduardo Pérez-Campos Mayoral
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca, 68020, Mexico.
| | - Eduardo Pérez-Campos
- Tecnológico Nacional de México, IT de Oaxaca, 68030, Mexico; Laboratorio de Patología Clínica" Dr. Eduardo Perez Ortega, 68000, Oaxaca, Mexico.
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16
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Pérez-Campos Mayoral L, Hernández-Huerta MT, Mayoral-Andrade G, Pérez-Campos Mayoral E, Zenteno E, Martínez-Cruz R, Martínez Ruíz H, Martínez Cruz M, Pérez Santiago AD, Pérez-Campos E. TSH Levels in Subclinical Hypothyroidism in the 97.5th Percentile of the Population. Int J Endocrinol 2020; 2020:2698627. [PMID: 32612652 PMCID: PMC7306879 DOI: 10.1155/2020/2698627] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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] [Received: 04/04/2020] [Revised: 05/23/2020] [Accepted: 05/25/2020] [Indexed: 12/20/2022] Open
Abstract
The debate regarding the cutoff point in the treatment of patients with subclinical hypothyroidism (Shypo) is ongoing. Generally, two different groups are identified for treatment by levels of 10 and 20 mIU/L. Nevertheless, the question remains, "what cutoff point should be chosen?" We have written a selective nonsystematic review focused on the 97.5 percentile reference value reported in healthy subjects in a number of countries and observed important disparities, which partly show the challenge of identifying a single cutoff point for those patients needing medication. We identified studies of TSH on the natural history of subclinical hypothyroidism from population-based prospective cohort studies, which follow up patients for several years. The evolution of TSH levels in these patients is variable. Some cases of TSH may return to lower levels at different stages over the years, but others may not, possibly even developing into overt thyroid failure, also variable. We analyzed factors that may explain the normalization of serum TSH levels. In addition, we found that thorough population-based prospective cohort studies following up on TSH levels, thyroid antibodies, and ultrasonography are important in decisions made in the treatment of patients. However, the 97.5 percentile reference value varies in different countries; therefore, an international cutoff point for subclinical hypothyroidism cannot be recommended.
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Affiliation(s)
- Laura Pérez-Campos Mayoral
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juírez de Oaxaca, Oaxaca 68020, Mexico
| | | | - Gabriel Mayoral-Andrade
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juírez de Oaxaca, Oaxaca 68020, Mexico
| | - Eduardo Pérez-Campos Mayoral
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juírez de Oaxaca, Oaxaca 68020, Mexico
| | - Edgar Zenteno
- Facultad de Medicina de la Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Ruth Martínez-Cruz
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juírez de Oaxaca, Oaxaca 68020, Mexico
| | - Héctor Martínez Ruíz
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juírez de Oaxaca, Oaxaca 68020, Mexico
| | | | | | - Eduardo Pérez-Campos
- Tecnológico Nacional de México/IT de Oaxaca, Oaxaca 68030, Mexico
- Laboratorio de Patología Clínica “Dr. Eduardo Pérez Ortega”, Oaxaca 68000, Mexico
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17
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Juárez-Chávez L, Pina-Canseco S, Soto-Castro D, Santillan R, Magaña-Vergara NE, Salazar-Schettino PM, Cabrera-Bravo M, Pérez-Campos E. In vitro activity of steroidal dendrimers on Trypanosoma cruzi epimastigote form with PAMAM dendrons modified by "click" chemistry. Bioorg Chem 2019; 86:452-458. [PMID: 30772646 DOI: 10.1016/j.bioorg.2019.01.056] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 08/22/2018] [Revised: 10/30/2018] [Accepted: 01/25/2019] [Indexed: 12/01/2022]
Abstract
The increasing use of dendrimers shows promise for the treatment of inflammatory diseases, Chagas disease and other conditions such as cancer. In this study, the activity of 1st and 2nd generation dendrimers over T. cruzi in the epimastigote stage was tested. Dendrimers were derived from α-ethynylestradiol (EE) modified with PAMAM-type dendrons through a triazole ring. The activity of each compound was evaluated in five doses (from 1.3 to 20 µmol/mL) by flow cytometry, including benznidazole (Bz) as positive control. The findings show that an equivalent concentration of 14.8 µmol/mL of 2nd generation (G) dendrimer is 8 times more effective than Bz at 24 h, and it maintains its superiority at 48 h with an IC50 = 1.25 ± 0.19 µmol/mL. A TUNEL assay showed that dendrimers induce cell death in T. cruzi epimastigotes mostly via apoptosis, unlike Bz, which induces death via necrosis in more than 50% of cells.
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Affiliation(s)
- Laura Juárez-Chávez
- Unidad de Bioquímica e Inmunología, División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Oaxaca, Av. Ing. Víctor Bravo Ahuja #125 esq, Clz. Tecnológico, C.P. 68030 Oaxaca, Mexico
| | - Socorro Pina-Canseco
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Ex Hacienda de Aguilera S/N, Carretera a San Felipe del Agua, C.P. 68020 Oaxaca, Mexico
| | - Delia Soto-Castro
- CONACyT-Instituto Politécnico Nacional, CIIDIR Unidad Oaxaca, Hornos 1003, Santa Cruz Xoxocotlán, Oaxaca C.P. 771230, Mexico.
| | - Rosa Santillan
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN, México, D.F, Apdo. Postal 14-740, 07000 Ciudad de México, Mexico
| | - Nancy E Magaña-Vergara
- Facultad de Ciencias Químicas, Universidad de Colima, km 9 Carretera Colima-Coquimatlán, Colima 28400, Mexico
| | | | - Margarita Cabrera-Bravo
- Facultad de Medicina, Departamento de Microbiología y Parasitología, UNAM, Ciudad de México 04510, Mexico
| | - Eduardo Pérez-Campos
- Unidad de Bioquímica e Inmunología, División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Oaxaca, Av. Ing. Víctor Bravo Ahuja #125 esq, Clz. Tecnológico, C.P. 68030 Oaxaca, Mexico; Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Ex Hacienda de Aguilera S/N, Carretera a San Felipe del Agua, C.P. 68020 Oaxaca, Mexico.
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18
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Pérez-Campos Mayoral E, Pérez-Campos Mayoral L, Mayoral Andrade G, Hernández-Huerta MT, Martínez Cruz M, Pérez-Campos E. Geographic and Ethnographic Variations of Hemoglobin A1C. Arch Iran Med 2018; 21:549-550. [PMID: 30551698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 06/03/2018] [Indexed: 06/09/2023]
Affiliation(s)
| | | | | | | | | | - Eduardo Pérez-Campos
- Research Center, Medicine, UNAM-UABJO, Oaxaca, México
- Biochemistry and Immunology Unit of the Technological Institute of Oaxaca, Oaxaca, México
- Clinical Pathology Laboratory, "Eduardo Pérez Ortega" Zaragoza 213, Oaxaca, México
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19
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Alpuche J, Quírino L, Sánchez-Vega JT, Yap J, Pérez-Campos E, Cabrera-Fuentes HA. The Role of Platelets in Ischemic Conditioning. Cond Med 2018; 1:313-318. [PMID: 30556056 PMCID: PMC6291202] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ischemic heart disease (IHD) is one of the leading causes of death and disability worldwide. Platelets, as the main regulators of hemostasis, are major players in acute myocardial ischemia/reperfusion injury (IRI). Additionally, platelets are modified by endogenous cardioprotective strategies such as ischemic preconditioning, postconditioning, and remote ischemic conditioning. In this article, we provide an overview of the functionional role of platelets in acute myocardial IRI, and highlight their potential as targets for cardioprotection to improve health outcomes in patients with IHD.
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Affiliation(s)
- Juan Alpuche
- CONACyT-Facultad de Medicina, Centro de Investigación Facultad de Medicina, UNAM-UABJO. Universidad Autónoma Benito Juárez de Oaxaca. México
- Centro de Investigación Facultad de Medicina, UNAM-UABJO. Universidad Autónoma Benito Juárez de Oaxaca
| | - Luz Quírino
- Centro de Investigación Facultad de Medicina, UNAM-UABJO. Universidad Autónoma Benito Juárez de Oaxaca
- Facultad de Odontología, Universidad Autónoma Benito Juárez de Oaxaca, México
| | - José T Sánchez-Vega
- Parasitology Laboratory, Department of Microbiology and Parasitology, Faculty of Medicine, Universidad Nacional Autónoma de México, México City, México
| | - Jonathan Yap
- Center for Cardiovascular Research, John A. Burns School of Medicine, University of Hawaii, Hawaii, USA
| | - Eduardo Pérez-Campos
- Centro de Investigación Facultad de Medicina, UNAM-UABJO. Universidad Autónoma Benito Juárez de Oaxaca
- Tecnológico Nacional de México/IT Oaxaca. Oaxaca. México
| | - Hector A. Cabrera-Fuentes
- Kazan Federal University, Department of Microbiology, Kazan, Russian Federation
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore, Singapore
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore
- Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, NL, México
- Institute of Biochemistry, Medical School, Justus-Liebig-University, Giessen, Germany
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20
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Pérez-Campos Mayoral L, Mayoral-Andrade G, Perez-Campos Mayoral E, Pérez-Campos E. Tuberculosis Testing in Children. Clin Pediatr (Phila) 2018; 57:1132. [PMID: 29557186 DOI: 10.1177/0009922818764928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
| | | | | | - Eduardo Pérez-Campos
- 1 Research Center, Medicine, UNAM-UABJO, Oaxaca, México
- 2 Technological Institute of Oaxaca, Oaxaca, México
- 3 Clinical Pathology Laboratory, "Eduardo Pérez Ortega" Zaragoza 213, Oaxaca, México
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Perez-Campos Mayoral E, Mayoral-Andrade G, Pérez-Campos Mayoral L, Canseco SP, Cruz RM, Hernández-Huerta MT, Rodriguez AM, Cabrera-Fuentes HA, Pérez-Campos E. Diagnosis of Transient/Latent HPV Infections - A Point of View! Arch Med Res 2018. [DOI: 10.1016/j.arcmed.2018.10.004] [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: 10/28/2022]
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Mayoral-Andrade G, Pérez-Campos-Mayoral L, Majluf-Cruz A, Perez-Campos Mayoral E, Perez Campos Mayoral C, Rocha-Núñez A, Martinez M, Zenteno E, Hernandez-Gonzalez L, López Juan MG, Pérez-Santiago AD, Pérez-Campos E. Reduced platelet aggregation in women after intercourse: a possible role for the cyclooxygenase pathway. Clin Exp Pharmacol Physiol 2018; 44:847-853. [PMID: 28502103 DOI: 10.1111/1440-1681.12783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 06/02/2016] [Revised: 05/05/2017] [Accepted: 05/08/2017] [Indexed: 01/05/2023]
Abstract
We hypothesise that molecules in the cyclooxygenase pathway affect platelet activity when seminal fluid (SF) is present. We considered the influence of SF on platelet aggregation in women, and believe that the prostanoids in SF signalling are significant. Thirty-one female subjects were studied, 20 of whom were sexually active. Male partners were given either aspirin or indomethacin to inhibit cyclooxygenase. The 6-keto prostaglandin F1α (6-keto PGF1α) and prostaglandin E metabolite (PGE-M) in SF were measured by competitive assay. Platelets and prostanoids were evaluated in women, periodically, before and after intercourse. The platelets were tested with adenosine diphosphate (ADP) and arachidonic acid (AA). To block the interaction between the uterus and SF, some couples used condoms. We found that the 6-keto prostaglandin F1α in urine at 2 hours post-intercourse (1418.75 pg/mL, Std 688.39) was greater than pre-intercourse (772.68 pg/mL, Std 116.54). Post-intercourse, a transient decrease in platelet aggregation was observed in women whose partners did not use condoms. Averages for platelet aggregation were 20.16% with ADP, and more significantly, 37.79% with AA after 2 hours. In contrast, couples using condoms showed no changes, averaging 64.02% with ADP and 72.06% with AA. Women whose partners were taking aspirin or indomethacin also showed no changes. SF from men taking aspirin or indomethacin led to no reduction in platelet aggregometry in their partners. These results indicate that in cases of exposure to SF, the transient change in women's platelet activity could be related to the cyclooxygenase pathway.
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Affiliation(s)
- Gabriel Mayoral-Andrade
- Department of Biochemistry and Immunology, ITO-UNAM, Oaxaca, Mexico.,Medical Research Center-UNAM-UABJO, Oaxaca, Mexico
| | | | - Abraham Majluf-Cruz
- Medical Research Unit for Thrombosis, Hemostasis and Atherogenesis, IMSS, Mexico City, Mexico
| | | | | | - Ana Rocha-Núñez
- Department of Biochemistry and Immunology, ITO-UNAM, Oaxaca, Mexico
| | | | | | | | | | | | - Eduardo Pérez-Campos
- Department of Biochemistry and Immunology, ITO-UNAM, Oaxaca, Mexico.,Medical Research Center-UNAM-UABJO, Oaxaca, Mexico.,Clinical Pathology Laboratory "Dr. Eduardo Perez Ortega", Oaxaca, Mexico
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Fenton-Navarro P, Pérez-Campos E, Pina-Canseco MDS, Fenton-Navarro B. Gaucher’s Disease and Hurler’s Syndrome in Two First Cousins. INT J HUM GENET 2017. [DOI: 10.1080/09723757.2017.1365433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Patricia Fenton-Navarro
- Genetics Department, “Dr. Aurelio Valdivieso” General Hospital, Oaxaca, Oax Health Services Oaxaca, Mexico
| | - Eduardo Pérez-Campos
- Research Center, Faculty of Medicine, UABJO-UNAM, Oaxaca, México
- Department of Biochemistry and Immunology, ITO-UNAM, Oaxaca, Mexico
| | | | - Bertha Fenton-Navarro
- Glycobiology Laboratory, Postgraduate Studies Division, Faculty of Medicine and Biological Sciences “Dr. Ignacio Chávez”, UMSNH, Morelia, México
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Soto-Castro D, Lara Contreras RC, Pina-Canseco MDS, Santillán R, Hernández-Huerta MT, Negrón Silva GE, Pérez-Campos E, Rincón S. Solvent-free synthesis of 6β-phenylamino-cholestan-3β,5α-diol and (25R)-6β-phenylaminospirostan-3β,5α-diol as potential antiproliferative agents. Steroids 2017; 126:92-100. [PMID: 28827069 DOI: 10.1016/j.steroids.2017.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 07/30/2017] [Accepted: 08/15/2017] [Indexed: 10/19/2022]
Abstract
In this paper is described a synthetic route to 6β-phenylamino-cholestan-3β,5α-diol and (25R)-6β-phenylaminospirostan-3β,5α-diol, starting from cholesterol and diosgenin, respectively. The products were obtained in two steps by epoxidation followed by aminolysis, through an environmentally friendly and solvent-free method mediated by SZ (sulfated zirconia) as catalyst. The use of SZ allows chemo- and regioselective ring opening of the 5,6α-epoxide during the aminolysis reaction eliminating the required separation of the epoxide mixture. The products obtained were spectroscopically characterized by 1H, PENDANT 13C NMR and HETCOR experiments, and complemented with FTIR-ATR and HRMS. The antiproliferative effect of the β-aminoalcohols was evaluated on MCF-7 cells after 48h of incubation, by MTT and CVS assays. These methodologies showed that both compounds have antiproliferative activity, being more active the cholesterol analogue. Additionally, the cell images obtained by Harris' Hematoxylin and Eosin (H&E) staining protocol, evidenced formation of apoptotic bodies due to the presence of the obtained β-aminoalcohols in a dose-dependent manner.
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Affiliation(s)
- Delia Soto-Castro
- CONACyT-Instituto Politécnico Nacional, CIIDIR Unidad Oaxaca, Hornos 1003, Santa Cruz Xoxocotlán, Oaxaca C.P. 771230, Mexico
| | - Roberto Carlos Lara Contreras
- Departamento de Ingeniería Química-Bioquímica, Instituto Tecnológico de Mérida, Av. Tecnológico S/N, 97118 Mérida, Yucatán, Mexico
| | - Maria Del Socorro Pina-Canseco
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Ex Hacienda de Aguilera S/N, Carretera a San Felipe del Agua, C.P. 68020 Oaxaca, Mexico
| | - Rosa Santillán
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN, México, D.F, Apdo. Postal 14-740, 07000, Mexico
| | - María Teresa Hernández-Huerta
- Unidad de Bioquímica e Inmunología, División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Oaxaca, Av. Ing. Víctor Bravo Ahuja #125 esq, Clz. Tecnológico, C.P. 68030 Oaxaca, Mexico
| | - Guillermo E Negrón Silva
- Departamento de Ciencias Básicas y Departamento de Química, UAM, Av. San Pablo No 180, C.P. 02200 México D.F., Mexico
| | - Eduardo Pérez-Campos
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Ex Hacienda de Aguilera S/N, Carretera a San Felipe del Agua, C.P. 68020 Oaxaca, Mexico; Unidad de Bioquímica e Inmunología, División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Oaxaca, Av. Ing. Víctor Bravo Ahuja #125 esq, Clz. Tecnológico, C.P. 68030 Oaxaca, Mexico
| | - Susana Rincón
- Departamento de Ingeniería Química-Bioquímica, Instituto Tecnológico de Mérida, Av. Tecnológico S/N, 97118 Mérida, Yucatán, Mexico.
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Rosas-Sumano AB, Rodal-Canales FJ, Barrientos Pérez M, Cárdenas-Morales BE, Pérez-Campos Mayoral L, Pérez-Campos E. [Hyperinsulinemia and insulin resistance in children]. Rev Med Chil 2016; 144:1020-1028. [PMID: 27905649 DOI: 10.4067/s0034-98872016000800010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Accepted: 06/17/2016] [Indexed: 11/17/2022]
Abstract
BACKGROUND Obesity during childhood is a risk factor for developing cardiovascular diseases during adulthood. AIM To measure insulin and glucose levels and parameters of insulin resistance in obese, overweight and normal weight Mexican children. MATERIAL AND METHODS Comparative study of 21 obese children with a body mass index (BMI) over percentile 95, aged 10 ± 1 years (10 males), 14 children aged 10 ± 2 (7 males) with a BMI between percentiles 85 and 94 and 16 children aged 9 ± 2 years (3 males) with a body mass index between percentiles 10 and 84. Body weight, blood pressure and waist circumference were measured and a blood sample was obtained to measure fasting glucose and insulin levels. Homeostasis model of insulin resistance (HOMA) and quantitative insulin sensitivity check index (QUICKI) were calculated. RESULTS Among obese, overweight and normal weight children, insulin levels were 14.9 (95% CI 10.90-18.99), 7.20 (CI 5.12-9.28) and 4.73 (CI 95% 1.92-7.53) uU/ml, respectively. The figures for HOMA were 3.16 (95% CI 2.20-4.12), 1.49 (95% CI 1.03-1.94) and 0.97 (95% CI 0.35-1.60), respectively. The figures for QUICKI were 0.331 (95% CI 0.319-0.343), 0.371 (95% CI 0.349-0.393) and 0.419 (95% CI 0.391-0.446), respectively. Compared to their normal weight counterparts, the risk of obese children and those with a waist circumference over percentile 90 of having a HOMA over 3.16 was 17 and 10 times higher, respectively. BMI correlated better than waist circumference with insulin levels. CONCLUSIONS Obese children have higher levels of insulin resistance than their normal weight counterparts.
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García-Montalvo IA, Mayoral Andrade G, Perez-Campos Mayoral L, Pina Canseco S, Martinez Cruz R, Martínez-Cruz M, Zenteno E, Perez-Campos Mayoral E, Velasco Gallegos I, Hernandez-Huerta MT, Matias-Perez D, Pérez-Campos E. Molecules in seminal plasma related to platelets in preeclampsia. Med Hypotheses 2016; 93:27-9. [DOI: 10.1016/j.mehy.2016.05.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 05/09/2016] [Indexed: 12/20/2022]
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Abstract
OBJECTIVE to show reviewed information of published studies relating to Familial Hypercholesterolemia (FH), nutrition, and genes involved in the development of this pathology. RESULTS an analysis showing familial hypercholesterolemia as a disorder occuring due to mutations in gene encoding of the LDL receptor, which can be transmitted as an autosomal dominant or autosomal recessive. It's diagnosis is important for those with a greater likelihood of premature coronary disease, and can significantly reduce life expectancy. CONCLUSIONS there are no specific clinical criteria with absolute predictive value for the diagnosis of HF, Genetic diagnosis can prove functional defects in the LDL receptor gene, constituting definitive confirmation of the diagnosis, thus the importance of presenting a genetic vision of development of this disease, which can be treated adequately through diet therapy affecting future generations in the family concerned.
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Affiliation(s)
- Diana Matías-Pérez
- Unidad de Bioquímica e Inmunología ITO-UNAM (Oaxaca), Oaxaca. Centro de Investigación UNAM-UABJO (Oaxaca), Oaxaca. Escuela de Nutrición, URSE (Oaxaca), Oaxaca. México..
| | - Eduardo Pérez-Campos
- Unidad de Bioquímica e Inmunología ITO-UNAM (Oaxaca), Oaxaca. Centro de Investigación UNAM-UABJO (Oaxaca), Oaxaca..
| | - Iván Antonio García-Montalvo
- Unidad de Bioquímica e Inmunología ITO-UNAM (Oaxaca), Oaxaca. Centro de Investigación UNAM-UABJO (Oaxaca), Oaxaca..
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Mateos SE, Cervantes CAM, Zenteno E, Slomianny MC, Alpuche J, Hernández-Cruz P, Martínez-Cruz R, del Socorro Pina Canseco M, Pérez-Campos E, Rubio MS, Mayoral LPC, Martínez-Cruz M. Purification and Partial Characterization of β-Glucosidase in Chayote (Sechium edule). Molecules 2015; 20:19372-92. [PMID: 26512637 PMCID: PMC6332095 DOI: 10.3390/molecules201019372] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 10/07/2015] [Accepted: 10/10/2015] [Indexed: 12/23/2022] Open
Abstract
β-Glucosidase (EC 3.2.1.21) is a prominent member of the GH1 family of glycoside hydrolases. The properties of this β-glucosidase appear to include resistance to temperature, urea, and iodoacetamide, and it is activated by 2-ME, similar to other members. β-Glucosidase from chayote (Sechium edule) was purified by ionic-interchange chromatography and molecular exclusion chromatography. Peptides detected by LC-ESI-MS/MS were compared with other β-glucosidases using the BLAST program. This enzyme is a 116 kDa protein composed of two sub-units of 58 kDa and shows homology with Cucumis sativus β-glucosidase (NCBI reference sequence XP_004154617.1), in which seven peptides were found with relative masses ranging from 874.3643 to 1587.8297. The stability of β-glucosidase depends on an initial concentration of 0.2 mg/mL of protein at pH 5.0 which decreases by 33% in a period of 30 h, and then stabilizes and is active for the next 5 days (pH 4.0 gives similar results). One hundred μg/mL β-D-glucose inhibited β-glucosidase activity by more than 50%. The enzyme had a Km of 4.88 mM with p-NPG and a Kcat of 10,000 min(-1). The optimal conditions for the enzyme require a pH of 4.0 and a temperature of 50 °C.
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Affiliation(s)
| | | | - Edgar Zenteno
- Facultad de Medicina de la, Universidad Nacional Autónoma de México, Distrito Federal 04510, Mexico.
| | - Marie-Christine Slomianny
- Unité Mixte de Recherche CNRS/USTL 8576, Glycobiologie Structurale et Fonctionnelle, Université des Sciences et Technologies de Lille 1, Villeneuve d'Ascq 59655, France.
| | - Juan Alpuche
- Centro de Investigación Medicina-UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68050, Mexico.
| | - Pedro Hernández-Cruz
- Centro de Investigación Medicina-UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68050, Mexico.
| | - Ruth Martínez-Cruz
- Centro de Investigación Medicina-UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68050, Mexico.
| | - Maria del Socorro Pina Canseco
- Centro de Investigación Medicina-UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68050, Mexico.
| | - Eduardo Pérez-Campos
- Unidad de Bioquímica e Inmunología, Instituto Tecnológico de Oaxaca, Oaxaca 68030, Mexico.
- Centro de Investigación Medicina-UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68050, Mexico.
| | - Manuel Sánchez Rubio
- Unidad de Bioquímica e Inmunología, Instituto Tecnológico de Oaxaca, Oaxaca 68030, Mexico.
| | - Laura Pérez-Campos Mayoral
- Centro de Investigación Medicina-UNAM-UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca 68050, Mexico.
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Medina-Solís CE, Pontigo-Loyola AP, Pérez-Campos E, Hernández-Cruz P, Avila-Burgos L, Mendoza-Rodríguez M, Maupomé G. Edentulism and other variables associated with self-reported health status in Mexican adults. Med Sci Monit 2014; 20:843-52. [PMID: 24852266 PMCID: PMC4043565 DOI: 10.12659/msm.890100] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 12/27/2013] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND To determine if edentulism, controlling for other known factors, is associated with subjective self-report health status (SRH) in Mexican adults. MATERIAL AND METHODS We examined the SRH of 13 966 individuals 35 years and older, using data from the National Survey of Performance Assessment, a cross-sectional study that is part of the technical collaboration between the Ministry of Health of Mexico and the World Health Organization, which used the survey instrument and sampling strategies developed by WHO for the World Health Survey. Sociodemographic, socioeconomic, medical, and behavioral variables were collected using questionnaires. Self-reported health was our dependent variable. Data on edentulism were available from 20 of the 32 Mexican states. A polynomial logistic regression model adjusted for complex sampling was generated. RESULTS In the SRH, 58.2% reported their health status as very good/good, 33.8% said they had a moderate health status, and 8.0% reported that their health was bad/very bad. The association between edentulism and SRH was modified by age and was significant only for bad/very bad SRH. Higher odds of reporting moderate health or poor/very poor health were found in women, people with lower socio-economic status and with physical disabilities, those who were not physically active, or those who were underweight or obese, those who had any chronic disease, and those who used alcohol. CONCLUSIONS The association of edentulism with a self-report of a poor health status (poor/very poor) was higher in young people than in adults. The results suggest socioeconomic inequalities in SRH. Inequality was further confirmed among people who had a general health condition or a disability. Dentists and health care professionals need to recognize the effect of edentulism on quality of life among elders people.
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Affiliation(s)
- Carlo Eduardo Medina-Solís
- Academic Area of Dentistry of Health Sciences Institute, Autonomous University of Hidalgo State, Pachuca, Hidalgo, Mexico
- Research Centre in Medical and Biological Sciences, School of Medicine and Surgery, Autonomous University “Benito Juarez” of Oaxaca, Oaxaca, Mexico
| | | | - Eduardo Pérez-Campos
- Research Centre in Medical and Biological Sciences, School of Medicine and Surgery, Autonomous University “Benito Juarez” of Oaxaca, Oaxaca, Mexico
- Biochemistry Unit ITO-UNAM, Oaxaca, Mexico
| | - Pedro Hernández-Cruz
- Research Centre in Medical and Biological Sciences, School of Medicine and Surgery, Autonomous University “Benito Juarez” of Oaxaca, Oaxaca, Mexico
- Biochemistry Unit ITO-UNAM, Oaxaca, Mexico
| | - Leticia Avila-Burgos
- Health Systems Research Centre, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Martha Mendoza-Rodríguez
- Academic Area of Dentistry of Health Sciences Institute, Autonomous University of Hidalgo State, Pachuca, Hidalgo, Mexico
| | - Gerardo Maupomé
- Indiana University/Purdue University at Indianapolis, School of Dentistry, Indianapolis, IN, U.S.A
- The Regenstrief Institute, Inc. Indianapolis, Indiana, IN, U.S.A
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Medina-Solís CE, Pontigo-Loyola AP, Pérez-Campos E, Hernández-Cruz P, Ávila-Burgos L, Mendoza-Rodríguez M, Maupomé G. National survey of oral/dental conditions related to tobacco and alcohol use in Mexican adults. Int J Environ Res Public Health 2014; 11:3169-84. [PMID: 24642844 PMCID: PMC3987028 DOI: 10.3390/ijerph110303169] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 01/08/2014] [Accepted: 01/08/2014] [Indexed: 02/07/2023]
Abstract
Oral diseases are a major burden on individuals and health systems. The aim of this study was to determine whether consumption of tobacco and alcohol were associated with the prevalence of oral/dental problems in Mexican adults. Using data from the National Performance Evaluation Survey 2003, a cross-sectional study part of the World Health Survey, dental information from a representative sample of Mexico (n = 22,229, N = 51,155,740) was used to document self-reported oral/dental problems in the 12 months prior to the survey. Questionnaires were used to collect information related to sociodemographic, socioeconomic, and other risk factors. Three models were generated for each age group (18–30, 31–45 and 46–98 years). The prevalence of oral/dental conditions was 25.7%. Adjusting for sex, schooling, socioeconomic position, diabetes, and self-reported health, those who used tobacco (sometimes or daily) (OR = 1.15, p = 0.070; OR = 1.24, p < 0.01; and OR = 1.16, p < 0.05, for each age group respectively) or alcohol (moderate or high) (OR = 1.26, p < 0.001; OR = 1.18, p < 0.01 and OR = 1.30, p < 0.001, for each age group respectively) had a higher risk of reporting oral/dental problems. Because tobacco and alcohol use were associated with self-reported oral/dental problems in one out of four adults, it appears advisable to ascertain how direct is such link; more direct effects would lend greater weight to adopting measures to reduce consumption of tobacco and alcohol for the specific purpose of improving oral health.
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Affiliation(s)
- Carlo Eduardo Medina-Solís
- Academic Area of Dentistry of Health Sciences Institute at Autonomous University of Hidalgo State, Pachuca, Hidalgo 42160, Mexico.
| | - América Patricia Pontigo-Loyola
- Academic Area of Dentistry of Health Sciences Institute at Autonomous University of Hidalgo State, Pachuca, Hidalgo 42160, Mexico.
| | - Eduardo Pérez-Campos
- Research Centre in Medical and Biological Sciences, School of Medicine and Surgery, Autonomous University "Benito Juarez" of Oaxaca, Oaxaca 68020, Mexico.
| | - Pedro Hernández-Cruz
- Research Centre in Medical and Biological Sciences, School of Medicine and Surgery, Autonomous University "Benito Juarez" of Oaxaca, Oaxaca 68020, Mexico.
| | - Leticia Ávila-Burgos
- Health Systems Research Centre, National Institute of Public Health, Cuernavaca, Morelos 62100, Mexico.
| | - Martha Mendoza-Rodríguez
- Academic Area of Dentistry of Health Sciences Institute at Autonomous University of Hidalgo State, Pachuca, Hidalgo 42160, Mexico.
| | - Gerardo Maupomé
- School of Dentistry, Indiana University/Purdue University at Indianapolis, Indianapolis, IN 46202, USA.
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Beatriz Silva A, Pina Canseco S, Gabriel de la Torre MDP, Mayoral Silva A, Mayoral MÁ, Pérez-Campos Mayoral L, López Martínez J, Pérez-Campos E. [Asymptomatic human infection from contact with dogs: a case of human ehrlichiosis]. GAC MED MEX 2014; 150:171-174. [PMID: 24603998] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
INTRODUCTION Living with dogs leads one to consider the necessity of identifying canine infections found in the people with whom the dogs live. OBJECTIVE Dogs which were clinically and serologically positive with the infections Ehirlichia canis, Anaplasma phagocytophilum, Borrelia burgdorferi, and Dirofilaria Immitis were sought. People with the same infections were also identified. MATERIAL AND METHODS From a population of 80 dogs identified in the villages of San Bartolo Coyotepec and San Agustín Etla (suburbs peripheral to the city of Oaxaca, Mexico), 27 dogs were selected for study, all of which had adenomegaly, hepatomegaly, splenomegaly, and fevers of at least 43° C. Using enzyme immunoassay in this population of dogs and their closest human contacts, antibodies for Ehirlichia canis, Anaplasma phagocytophilum, Borrelia burgdorferi, and the antigen for Dirofilaria immitis were sought. Positive results in humans were confirmed by polymerase chain reaction (PCR). RESULTS Ten dogs with the clinical signs mentioned above tested positive for antibodies to Ehrlichia canis; two cases tested positive for Anaplasma phagocytophilum; one case tested positive for Dirofilaria Immitis. From human contact, one person tested positive for Ehirlichia canis; this case was confirmed by DNA amplification by means of PCR. CONCLUSION It is necessary to identify the population of sick dogs in order to reduce related infections in people.
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Affiliation(s)
- Angela Beatriz Silva
- Centro de Investigación en Ciencias Médicas y Biológicas, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca (UABJO), Oax.
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Perez-Campos-Mayoral L, Pérez-Campos E, Zenteno E, Majluf-Cruz A, Perez-Ortega E, Matias-Pérez D, Rodal-Canales FJ, Martínez-Cruz R, Pina-Canseco S, Reyes Franco MA, Mayoral Andrade G, Hernández P, Gallegos B. Better detection of platelet aggregation in patients with metabolic syndrome using epinephrine and ADP. Diabetol Metab Syndr 2014; 6:93. [PMID: 25243022 PMCID: PMC4169807 DOI: 10.1186/1758-5996-6-93] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 08/25/2014] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Patients with metabolic syndrome (MS) often have increased platelet aggregation. In order to determine which concentration detects a higher level of platelet aggregation in patients with MS, the agonists ADP and epinephrine were compared. METHODS The study included 56 subjects with MS and 53 healthy subjects. Blood pressure, weight, body-mass index, and hip-to-waist ratio were collected from all subjects. Insulin, glucose, total serum cholesterol, HDL-C, LDL-C, total triglycerides, markers of plasma atherogenicity, and indices of insulin resistance were measured in all participants. For aggregometry assays, the Born method was used. Platelets were treated with ADP and epinephrine in decreasing concentrations of 2.34, 1.17, and 0.58 μM, as well as, 11.0, 1.1, and 0.55 μM, respectively. ROC curves were plotted to define the diagnostic efficiency of epinephrine levels for MS. RESULTS Among healthy individuals and MS patients significant differences were observed in body weight, body-mass index, waist-circumference, levels of insulin, indices of insulin resistance, and levels of HDL-cholesterol, LDL-cholesterol and total triglycerides. There was a significant difference in the detection of increased platelet aggregation using 11.0 μM and 0.55 μM epinephrine and 0.58 μM ADP. With both agonists, ROC analysis showed an area under the curve of >0.8 for 11.0 μM epinephrine and 2.34 μM ADP. However, for MS patients, 11.0 μM epinephrine had a slightly better diagnostic efficiency than 2.34 μM ADP. CONCLUSIONS It was found that 11.0 μM epinephrine and 2.34 μM ADP detected better platelet aggregation in patients with MS than in healthy subject. Both concentrations detected increased platelet aggregation in patients with MS.
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Affiliation(s)
- Laura Perez-Campos-Mayoral
- />Centro de Investigacion UNAM-UABJO, Facultad de Medicina, Universidad Autonoma Benito Juarez de Oaxaca, CIMUU, Zaragoza, 213, Oaxaca, Mexico
- />Laboratorio de Patologia Clinica “Dr. Eduardo Pérez Ortega, Oaxaca, Mexico
| | - Eduardo Pérez-Campos
- />Centro de Investigacion UNAM-UABJO, Facultad de Medicina, Universidad Autonoma Benito Juarez de Oaxaca, CIMUU, Zaragoza, 213, Oaxaca, Mexico
- />Laboratorio de Patologia Clinica “Dr. Eduardo Pérez Ortega, Oaxaca, Mexico
- />Unidad de Bioquimica e Inmunologia Instituto Tecnologico de Oaxaca, Oaxaca, Mexico
| | - Edgar Zenteno
- />Centro de Investigacion UNAM-UABJO, Facultad de Medicina, Universidad Autonoma Benito Juarez de Oaxaca, CIMUU, Zaragoza, 213, Oaxaca, Mexico
- />Departamento de Bioquimica, Facultad de Medicina, UNAM, Kragujevac, DF Mexico
| | - Abraham Majluf-Cruz
- />Unidad de Investigacion Medica en Trombosis, Hemostasia y Aterogenesis, IMSS, Mexico City, Mexico
| | | | - Diana Matias-Pérez
- />Centro de Investigacion UNAM-UABJO, Facultad de Medicina, Universidad Autonoma Benito Juarez de Oaxaca, CIMUU, Zaragoza, 213, Oaxaca, Mexico
- />Laboratorio de Patologia Clinica “Dr. Eduardo Pérez Ortega, Oaxaca, Mexico
| | - Francisco J Rodal-Canales
- />Centro de Investigacion UNAM-UABJO, Facultad de Medicina, Universidad Autonoma Benito Juarez de Oaxaca, CIMUU, Zaragoza, 213, Oaxaca, Mexico
| | - Ruth Martínez-Cruz
- />Centro de Investigacion UNAM-UABJO, Facultad de Medicina, Universidad Autonoma Benito Juarez de Oaxaca, CIMUU, Zaragoza, 213, Oaxaca, Mexico
| | - Socorro Pina-Canseco
- />Centro de Investigacion UNAM-UABJO, Facultad de Medicina, Universidad Autonoma Benito Juarez de Oaxaca, CIMUU, Zaragoza, 213, Oaxaca, Mexico
| | - Miguel Angel Reyes Franco
- />Centro de Investigacion UNAM-UABJO, Facultad de Medicina, Universidad Autonoma Benito Juarez de Oaxaca, CIMUU, Zaragoza, 213, Oaxaca, Mexico
| | - Gabriel Mayoral Andrade
- />Centro de Investigacion UNAM-UABJO, Facultad de Medicina, Universidad Autonoma Benito Juarez de Oaxaca, CIMUU, Zaragoza, 213, Oaxaca, Mexico
- />Unidad de Bioquimica e Inmunologia Instituto Tecnologico de Oaxaca, Oaxaca, Mexico
| | - Pedro Hernández
- />Centro de Investigacion UNAM-UABJO, Facultad de Medicina, Universidad Autonoma Benito Juarez de Oaxaca, CIMUU, Zaragoza, 213, Oaxaca, Mexico
| | - Belem Gallegos
- />Centro de Investigacion UNAM-UABJO, Facultad de Medicina, Universidad Autonoma Benito Juarez de Oaxaca, CIMUU, Zaragoza, 213, Oaxaca, Mexico
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Medina-Solís CE, Pontigo-Loyola AP, Pérez-Campos E, Hernández-Cruz P, Ávila-Burgos L, Kowolik MJ, Maupomé G. Association between edentulism and angina pectoris in Mexican adults aged 35 years and older: a multivariate analysis of a population-based survey. J Periodontol 2013; 85:406-16. [PMID: 23895250 DOI: 10.1902/jop.2013.130186] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND The possible association between oral infection and chronic inflammation and cardiovascular disease risk has been studied intensively. The present study is designed to determine the strength of association between edentulism and angina pectoris in Mexican adults aged 35 years and older. METHODS Using the tools and sampling strategies of the World Health Survey of the World Health Organization, cross-sectional data were collected in Mexico in the National Performance Assessment Survey (probabilistic, multistage, and cluster sampling). Dental information was available for 20 of the 32 states of Mexico. Angina and edentulism are self-reported in this study. Statistical analysis was performed using binary logistic regression adjusting for complex samples. RESULTS A total of 13,966 participants, representing a population of 29,853,607 individuals, were included. Of the complete study population, 3,052,263 (10.2%) were completely toothless, and 673,810 (2.3%) were diagnosed with angina pectoris. After adjusting for smoking, alcohol consumption, diabetes, body mass index, and sex, the effect of edentulism on angina was modified by age (interaction), being more marked in the younger age group (odds ratio [OR] = exp(2.5597) =12.93) than in the older individuals surveyed (OR = exp(2.5597 + (-0.0334)) =12.51). Additionally, low physical activity (OR = 1.51; 95% confidence interval [CI] = 1.03 to 2.22) and higher socioeconomic status (OR = 1.37; 95% CI = 1.00 to 1.90) were more likely to be associated with angina pectoris. CONCLUSIONS Overall, the results of this study, conducted in a representative sample of Mexican adults, suggest that an association exists between edentulism and angina pectoris. Additional studies are necessary to elucidate the underlying mechanism for this association.
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Affiliation(s)
- Carlo Eduardo Medina-Solís
- Academic Area of Dentistry of Health Sciences Institute at Autonomous University of Hidalgo State, Pachuca, Hidalgo, Mexico
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Medina-Solís CE, Pontigo-Loyola AP, Pérez-Campos E, Hernández-Cruz P, De la Rosa-Santillana R, Navarete-Hernández JDJ, Maupomé G. [Principal reasons for extraction of permanent tooth in a sample of Mexicans adults]. Rev Invest Clin 2013; 65:141-149. [PMID: 23844532] [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: 06/02/2023]
Abstract
BACKGROUND Tooth extractions are one of the most common procedures in oral surgery. The objective of this study was to identify the reasons for tooth extraction in adult patients seeking care at teaching dental clinics. MATERIAL AND METHODS A cross-sectional study was carried out in 331 subjects between 18 and 85 (45.37 +/- 13.85) years of age seeking dental care in dental clinics of the Universidad Autónoma del Estado de Hidalgo, from January 2009 to December, 2009. Data pertaining to age, sex, tooth number and the reason for extraction according to Kay & Blinkhorn were analyzed with non-parametric tests. RESULTS 779 extractions were undertaken. The main reason for extraction was dental caries (43.1%), periodontal disease (PD) (27.9%), and prosthetic reasons (21.5%). There was no significant difference across sex for reasons of extraction (p > 0.05). Significant differences (p < 0.001) were found for age (extraction due to periodontal disease increased with age); in patients attending in a single visit vs. patients attending a series of dental appointments (caries reasons were more common in patients having a single appointment vs. PD in those attending a series of appointments); for type of teeth (upper, posterior, and molars were extracted primarily because of caries, while lower, anterior and incisors were more often extracted because of PD). CONCLUSIONS Dental caries was the most common reason for tooth extraction, followed by periodontal disease. Differences in the reasons for extraction were observed across patient characteristics and type of tooth.
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Affiliation(s)
- Carlo Eduardo Medina-Solís
- Area Académica de Odontología, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo.
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Gallegos IB, Pérez-Campos E, Martinez M, Mayoral MÁ, Pérez L, Aguilar S, Zenteno E, Pina MDS, Hernández P. Expression of antigen tf and galectin-3 in fibroadenoma. BMC Res Notes 2012; 5:694. [PMID: 23265237 PMCID: PMC3532378 DOI: 10.1186/1756-0500-5-694] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Accepted: 12/18/2012] [Indexed: 11/23/2022] Open
Abstract
Background Fibroadenomas are benign human breast tumors, characterized by proliferation of epithelial and stromal components of the terminal ductal unit. They may grow, regress or remain unchanged, as the hormonal environment of the patient changes. Expression of antigen TF in mucin or mucin-type glycoproteins and of galectin-3 seems to contribute to proliferation and transformations events; their expression has been reported in ductal breast cancer and in aggressive tumors. Findings Lectin histochemistry, immunohistochemistry, and immunofluorescence were used to examine the expression and distribution of antigen TF and galectin-3. We used lectins from Arachis hypogaea, Artocarpus integrifolia, and Amaranthus lecuocarpus to evaluate TF expression and a monoclonal antibody to evaluate galectin-3 expression. We used paraffin-embedded blocks from 10 breast tissues diagnosed with fibroadenoma and as control 10 healthy tissue samples. Histochemical and immunofluorescence analysis showed positive expression of galectin-3 in fibroadenoma tissue, mainly in stroma, weak interaction in ducts was observed; whereas, in healthy tissue samples the staining was also weak in ducts. Lectins from A. leucocarpus and A. integrifolia specificaly recognized ducts in healthy breast samples, whereas the lectin from A. hypogaea recognized ducts and stroma. In fibroadenoma tissue, the lectins from A. integrifolia, A. Hypogaea, and A. leucocarpus recognized mainly ducts. Conclusions Our results suggest that expression of antigen TF and galectin-3 seems to participate in fibroadenoma development.
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Affiliation(s)
- Itandehui Belem Gallegos
- Centro de Investigaciones en Ciencias Medicas y Biológicas Facultad de Medicina, Universidad Autónoma Benito Juárez de Oaxaca, 68020, Oaxaca, Mexico
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Pina-Canseco MDS, Páez-Arenas A, Massó F, Pérez-Campos E, Martínez-Cruz R, Hernández-Cruz P, Majluf-Cruz A, Martínez-Cruz M, Pérez-Campos Mayoral L, Pérez-Santiago AD, Zenteno E. Protein C activation peptide inhibits the expression of ICAM-1, VCAM-1, and interleukin-8 induced by TNF-a in human dermal microvascular endothelial cells. Folia Histochem Cytobiol 2012. [DOI: 10.5603/fhc.2012.0055] [Citation(s) in RCA: 11] [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] [Indexed: 11/25/2022] Open
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Pina-Canseco MDS, Páez-Arenas A, Massó F, Pérez-Campos E, Martínez-Cruz R, Hernández-Cruz P, Majluf-Cruz A, Martínez-Cruz M, Pérez-Campos Mayoral L, Pérez-Santiago AD, Zenteno E. Protein C activation peptide inhibits the expression of ICAM-1, VCAM-1, and interleukin-8 induced by TNF-α in human dermal microvascular endothelial cells. Folia Histochem Cytobiol 2012; 50:407-13. [PMID: 23042271 DOI: 10.5603/19749] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Accepted: 10/08/2012] [Indexed: 11/25/2022] Open
Abstract
Activated protein C (APC) is generated from the cleavage of protein C by thrombin coupled to thrombomodulin and, subsequently, is released as protein C activation peptide (papC). The aim of this study was to evaluate the effect of papC on human dermal microvascular endothelial cells (HMEC-1), activated with 5 ng//mL TNF-α. Flow cytometry showed that papC inhibited the expression of VCAM-1 and ICAM-1, after activation with TNF-a. Similarly, RT-PCR analysis revealed that 2 and 4 pM papC inhibited the expression of VCAM-1 and IL-8 mRNA in TNF-α-treated HMEC-1. In addition, the expression of endothelial nitric oxide synthase(eNOS) increased in HMEC-1 treated with papC, compared to those without treatment. Furthermore, Jurkat cell adhesion to HMEC-1 induced by TNF-a was significantly inhibited after the addition of papC, compared to HMEC-1 without papC (p = 0.03). Finally, a control peptide analog to papC showed no effect on the expression of ICAM and VCAM on the surface of HMEC-1. In conclusion, our results suggest that papC exerts anti-inflammatory effects on endothelial cells.
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Ramírez-Altamirano MDJ, Fenton-Navarro P, Sivet-Chiñas E, Harp-Iturribarria FDM, Martínez-Cruz R, Cruz PH, Cruz MM, Pérez-Campos E. The relationship of aluminium and silver to neural tube defects; a case control. Iran J Pediatr 2012; 22:369-74. [PMID: 23400307 PMCID: PMC3564094] [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] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 02/17/2012] [Accepted: 03/15/2012] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The purpose of this study was to identify the relationship of neurotoxic inorganic elements in the hair of patients with the diagnosis of Neural Tube Defects. Our initial hypothesis was that neurotoxic inorganic elements were associated with Neural Tube Defects. METHODS Twenty-three samples of hair from newborns were obtained from the General Hospital, "Aurelio Valdivieso" in the city of Oaxaca, Mexico. The study group included 8 newborn infants with neural tube pathology. The control group was composed of 15 newborns without this pathology. The presence of inorganic elements in the hair samples was determined by inductively-coupled plasma spectroscopy (spectroscopic emission of the plasma). FINDINGS THE POPULATION OF NEWBORNS WITH NEURAL TUBE DEFECTS SHOWED SIGNIFICANTLY HIGHER VALUES OF THE FOLLOWING ELEMENTS THAN THE CONTROL GROUP: Aluminium, Neural Tube Defects 152.77±51.06 µg/g, control group 76.24±27.89 µg/g; Silver, Neural Tube Defects 1.45±0.76, control group 0.25±0.53 µg/g; Potassium, Neural Tube Defects 553.87±77.91 µg/g, control group 341.13±205.90 µg/g. Association was found at 75 percentile between aluminium plus silver, aluminium plus potassium, silver plus potassium, and potassium plus sodium. CONCLUSION IN THE HAIR OF NEWBORNS WITH NEURAL TUBE DEFECTS, THE FOLLOWING METALS WERE INCREASED: aluminium, silver. Given the neurotoxicity of the same, and association of Neural Tube Defects with aluminum and silver, one may infer that they may be participating as factors in the development of Neural Tube Defects.
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Affiliation(s)
| | | | | | | | - Ruth Martínez-Cruz
- Center of Medical and Biological Research, Benito Juarez University of Oaxaca (UABJO), Mexico,Multidisciplinary Research Center. UNAM-UABJO, Oaxaca, Mexico
| | - Pedro Hernández Cruz
- Center of Medical and Biological Research, Benito Juarez University of Oaxaca (UABJO), Mexico,Multidisciplinary Research Center. UNAM-UABJO, Oaxaca, Mexico
| | | | - Eduardo Pérez-Campos
- Department of Biochemistry and Immunology, Technological Institute of Oaxaca, Mexico,Multidisciplinary Research Center. UNAM-UABJO, Oaxaca, Mexico,Corresponding Author:Address: Department of Biochemistry and Immunology, Technological Institute of Oaxaca, Oaxaca, Mexico. E-mail:
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Merlin PSO, Bohorquez PDCL, Martínez-Cruz R, Canseco SP, Hernandez P, Martínez-Cruz M, Rubio MS, Martínez LM, Pérez-Campos E. A study on inorganic elements in psammomas from ovarian & thyroid cancer. Indian J Med Res 2012; 135:217-20. [PMID: 22446864 PMCID: PMC3336853] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND & OBJECTIVES Concentric lamellar calcifications known as psammoma bodies (PB) are found in benign and malignant tumours. Whether or not the inorganic element concentrations in psammomas are similar to serous adenocarcinoma of the ovary and thyroid papillary cancer tissues has not yet been ascertained. We undertook this retrospective study to establish if there is any difference in the concentrations of inorganic ions found in psammomas in serous adenocarcinoma of the ovary, and those found in thyroid papillary cancer tissue. METHODS PB samples from patients with adenocarcinoma of the ovary (n = 10) and with thyroid papillary cancer (n = 10) were analyzed through inductively-coupled plasma spectroscopy (ICP). RESULTS There were no significant differences in the concentrations of inorganic elements in PB from thyroid papillary cancer than in those PB from ovarian cancer. INTERPRETATION & CONCLUSIONS Differences in the concentrations of inorganic elements may be due to the variation in environmental pollution. Our study had limitation of small sample size. Our results suggest that some inorganic elements can participate in the origin of psammoma bodies.
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Affiliation(s)
- Pedro S. Olivera Merlin
- Biological & Medical Sciences Research Center, The School of Medicine & Surgery, UABJO, Oaxaca, Mexico
| | | | - Ruth Martínez-Cruz
- Biological & Medical Sciences Research Center, The School of Medicine & Surgery, UABJO, Oaxaca, Mexico
| | - Socorro Pina Canseco
- Biological & Medical Sciences Research Center, The School of Medicine & Surgery, UABJO, Oaxaca, Mexico
| | - Pedro Hernandez
- Biological & Medical Sciences Research Center, The School of Medicine & Surgery, UABJO, Oaxaca, Mexico
| | | | - Manuel Sánchez Rubio
- Biochemistry & Immunology, Unit of the Technological Institute of Oaxaca, Oaxaca, Mexico
| | | | - Eduardo Pérez-Campos
- Biological & Medical Sciences Research Center, The School of Medicine & Surgery, UABJO, Oaxaca, Mexico,Biochemistry & Immunology, Unit of the Technological Institute of Oaxaca, Oaxaca, Mexico,Reprint requests: Dr Eduardo Pérez-Campos, Biological & Medical Sciences Research Center, School of Medicine & Surgery, UABJO, Oaxaca, Mexico e-mail:
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Silva-Bravo R, Mayoral-Andrade G, Zenteno E, Hernandez P, Martínez-Cruz R, Mayoral LPC, Aguilar-Ruiz S, Paz-Pacheco A, Zarate-Aspiros R, López-Bravo M, Roldan-Aragon Y, Pérez-Campos E. Color of meconium and interleukin-6. Indian J Pediatr 2012; 79:48-51. [PMID: 21625842 DOI: 10.1007/s12098-011-0447-4] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2010] [Accepted: 05/02/2011] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To test the hypothesis that the color of meconial fluid is associated with inflammatory biomarkers, by determining C-reactive protein (CRP) and Interleukin-6 (IL-6) in serum from the umbilical cord. METHODS In this prospective study, the authors selected 30 newborns with meconium-stained amniotic fluid (MSAF): 14 with green/brown 656 R color and 16 with brown/cinnamon 654 R color, and 20 newborns which showed clear amniotic fluid without MSAF (non-MSAF); all newborns were from mothers without risk factors for neonatal sepsis. RESULTS IL-6 concentration from umbilical cord blood, [median of 12.9 pg/mL (interquartile range {IQR} 8.7-31.0)] of MSAF-green/brown 656 R increased significantly (p < 0.05) when compared with IL-6 concentration, [median of 9.2 pg/mL (IQR 7.2-12.2)] of newborns with clear amniotic fluid and without meconium. CRP from MSAF-green/brown 656 R was median of 0.5 mg/mL (IQR 0.0-2.7), and median of 1.0 mg/mL (IQR 0.0-5.5) from clear amniotic fluid, without meconium. CONCLUSIONS Significant association was found between MSAF-green/brown 656 R and increase in IL-6, with normal CRP values.
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Affiliation(s)
- Raquel Silva-Bravo
- Hospital General "Dr. Aurelio Valdivieso", Servicios de Salud del Estado de Oaxaca, Oaxaca, Mexico
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Lopez G, Jmenez S, Martinez R, Pina MDS, Gallegos B, Pérez-Campos E, Zenteno E, Hernández P. Glycosylation pattern in the appendix testis in children with cryptorchidism. Prep Biochem Biotechnol 2011; 41:22-9. [PMID: 21229461 DOI: 10.1080/10826068.2010.525398] [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] [Indexed: 10/18/2022]
Abstract
In humans, at about week 6, sex cords develop within the forming testes. Testes normally descend to the scrotum; cryptorchidism occurs when one or two testes do not descend to scrotum and in some case are accompanied by the appendix testis. The appendix testis is a small sessile or polypoid structure located at the antero superior pole of the testis, adjacent to the head of the epididymis. Glycans can be involved in development of the appendix testis and cryptorchidism. In this work, lectin histochemistry was used to evaluate glycans expression in appendix testis in children with cryptorchidism. Our results showed that lectin from Lens culinaris, Ulex europaeus I., Canavalia ensiformis, Artocarpus integrifolia, Glycine max, and Griffonia simplicifolia recognizes epithelial and estromal cells. Not interaction was observed with lectin from Amaranthus leucocarpus, while lectin from Dolichus biflorus lectin only recognizes epithelial cells. Our results suggest that O-glycans linked in some glycoproteins represent important elements in appendix testis development.
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Affiliation(s)
- Gerardo Lopez
- Centro de Investigaciones en Ciencias Medicas y Biológicas Facultad de Medicina, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, México
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Castillo-Pérez S, Gómez-Pérez V, Velasco MC, Pérez-Campos E, Mayoral MA. Effects of music therapy on depression compared with psychotherapy. The Arts in Psychotherapy 2010. [DOI: 10.1016/j.aip.2010.07.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Gallegos B, Pérez-Campos E, Martinez R, Leyva P, Martinez M, Hernández R, Pina S, Hernández C, Zenteno E, Hernández P. O-glycosylation expression in fibroadenoma. Prep Biochem Biotechnol 2010; 40:1-12. [PMID: 20024790 DOI: 10.1080/10826060903386071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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: 10/20/2022]
Abstract
Fibroadenomas are human benign breast tumors characterized by proliferation of epithelial and stroma cells of the terminal ductal unit. Expression of O-glycans seems to contribute to the proliferation and transformation events. With this in mind, we evaluated the expression of glycans in fibroadenoma tissue through immunohistochemistry with antibodies against mucin epitopes (Anti CA15-3 and MUC1), as well as with lectins specific for glycans linked to proteins or lipids, and we compared findings with healthy breast specimens. Our results show positive expression of CA15-3 and MUC1 in fibroadenoma tissue, mainly in duct and stroma cells, whereas, in normal samples, staining was observed in duct cells. The lectin from Glycine max recognized equally well duct and stroma cells; this was the only lectin showing co-localization with anti-CA15-3 in healthy and tumor tissues. Dolichos biflorus, Artocarpus integrifolia, and Griffonia simplicifolia lectins recognized duct cells in control healthy tissues as well as in fibroadenoma tissue. The lectin from Amaranthus leucocarpus recognized only duct cells in control samples, whereas, in fibroadenoma tissue, it recognized duct and some stromal cells, suggesting that O-glycans-type mucin linked to proteins and mucin participate in the development of fibroadenomas.
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Affiliation(s)
- Belem Gallegos
- Centro de Investigaciones en Ciencias Medicas y Biológicas, Facultad de Medicina, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, México
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Matadamas-Zárate C, Hernández-Jerónimo J, Pérez-Campos E, Majluf-Cruz A. [Platelet abnormalities in type 2 diabetes mellitus]. Arch Cardiol Mex 2009; 79 Suppl 2:102-108. [PMID: 20361492] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
Diabetes mellitus is a problem of health worldwide being vascular complications the main causes of morbidity and mortality in this population. Diabetics have a fast atherothrombotic evolution which is worse than that observed for other clinical entities; however, hyperglycemia itself may not totally explain the ischemic complications observed in these patients. Most ischemic arterial events are precipitated by plaque rupture, platelet activation, and thrombosis. Several abnormalities in the blood coagulation system have been described associated to diabetes mellitus, all of them predisposing to thrombosis: endothelial cell dysfunction, platelet hyperreactivity, thrombin generation and hypofibrinolysis. Platelets play a key role in diabetic atherothrombosis due to platelet hypersensitivity to physiological agonists, low response to therapeutical antiplatelet agents, platelet hyperreactivity in sites of endothelial cell damage, hyperaggregability, resistance to the inhibitory effects of the insulin, and low endothelial production of prostacyclin and nitric oxide. All these phenomena have been associated to either a toxic microenvironment due to hyperglycemia or to intrinsic platelet abnormalities. Based on all these facts, it is proposed that platelets may be another target for the negative effects of insulin-resistance state. Because platelets are crucial in the atherosclerotic process and in the genesis of the vascular complications of diabetes mellitus, this review analyses the platelet abnormalities observed in this metabolic disease.
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Lete I, Dueñas J, Serrano I, Doval J, Pérez-Campos E, Martínez-Salmeán J, Coll C. Efectos beneficiosos no anticonceptivos de la píldora anticonceptiva. Semergen 2009. [DOI: 10.1016/s1138-3593(09)73109-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Santizo F, Zenteno E, Pina-Canseco S, Hernandez-Cruz P, Cruz MM, Mayoral LPC, Pérez-Campos E, Martínez-Cruz R. Lectin activity of the coagulation factor VIII/von Willebrand complex. TOHOKU J EXP MED 2009; 217:209-15. [PMID: 19282656 DOI: 10.1620/tjem.217.209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The human coagulation factor VIII (FVIII) is essential in the intrinsic pathway of blood coagulation and circulates mainly as a non-covalently bound complex with the von Willebrand factor (VWF). This complex (FVIII/VWF) protects FVIII from degradation and cellular uptake, although no biological role has been identified yet for this complex. The FVIII/VWF complex was purified from a healthy donor's plasma by affinity chromatography on a Sepharose 4B-Concanavalin A column and was used to determine its capability to interact with erythrocytes and platelets. The purified FVIII/VWF complex at 6.0 and 12 microg/ml agglutinates rabbit and bovine erythrocytes, and showed negative agglutination with erythrocytes from other species including human ABO. Treatment of erythrocytes with Clostridium perfringens sialidase or trypsin increased four-fold the activity toward rabbit erythrocytes and positive agglutination for human A and B erythrocytes, suggesting the presence of FVIII/VWF-cryptic receptors in these erythrocytes. Goat, pig, or human O erythrocytes were not agglutinated even after enzymatic treatment. Fucose or N-acetyl-glucosamine (GlcNAc), at 10 mM, inhibited agglutinating activity of the complex with rabbit, human A and B erythrocytes, whereas galactose and N-acetyl-galactosamine, even at 200 mM, showed no effect on the complex activity. The FVIII/VWF complex, at 1.5 microg/200,000 platelets, significantly decreased platelet aggregation (p < 0.001) when compared with the effect of platelet-rich plasma; this effect was inhibited with 15 mM GlcNAc or fucose. ELISA assays on FVIII/VWF coated polystyrene plates confirmed specific binding to fucose- or biotinylated GlcNAc-dextran derivatives. We therefore propose that the FVIII/VWF complex possesses lectin activity.
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Affiliation(s)
- Francisca Santizo
- Biochemistry and Immunology Unit, Technological Institute of Oaxaca, Oaxaca, Mexico
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Pérez-Campos-Mayoral L, Ruiz-Argüelles A, Pérez-Romano B, Zenteno E, Hernández-Cruz P, Martínez-Cruz R, Martínez-Cruz M, Pina-Canseco S, Pérez-Campos E. Potential use of the Macrobrachium rosenbergii lectin for diagnosis of T-cell acute lymphoblastic leukemia. TOHOKU J EXP MED 2008; 214:11-6. [PMID: 18212483 DOI: 10.1620/tjem.214.11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
T-cell acute lymphoblastic leukemia is the most common form of cancer in children. Lectins are proteins or glycoproteins from plants or animals that recognize oligossacharides on the cell surface and have been used to characterize the structural changes of oligosaccharides in leukemias. In this study, we used the lectin from the freshwater prawn Macrobrachium (M. rosenbergii), specific for acetyl groups in sialylated glycans, because increased sialylation of glycoproteins and glycolipids has been identified in lymphoblastic leukemias. We compared the specificity of the M. rosenbergii lectin for lymphoblastic leukemias with the specificities of the lectins from Triticum vulgaris, Solanum tuberosum, Arachis hipogaea, and Phytolacca americana. By morphologic and phenotype characterization with a panel of monoclonal antibodies, we identified four types of leukemias from 106 leukemia patients: 11 cases of T-cell acute lymphoblastic leukemia, 61 cases of B-cell acute lymphoblastic leukemia, 24 cases of acute myeloblastic leukemia, and 10 cases of acute biphenotypic leukemia. As determined by cytofluorometric assays, nine of the eleven cases with T-cell acute lymphoblastic leukemia (8 +/- 3 years old) were specifically identified with the lectin from M. rosenbergii. In contrast, only six cases of B-cell leukemia, one case of myeloblastic leukemia, and 2 cases of biphenotypic leukemia were identified with this M. rosenbergii lectin. The other lectins tested showed no capacity to differentiate, in a significant manner, any of the four types of leukemias tested. Thus, the lectin from M. rosenbergii could be considered a useful tool for the diagnosis and study of T-cell acute lymphoblastic leukemia.
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Díaz-González JA, Mayoral-Chávez MA, Bohórquez PL, de la Torre MDPG, Hernández-Cruz P, Martínez-Cruz R, Pérez-Campos E. Role of concanavalin A lectin in recognition of pterygium remnant after surgical excision: preliminary results of a prospective study. Indian J Ophthalmol 2007; 55:349-53. [PMID: 17699943 PMCID: PMC2636009 DOI: 10.4103/0301-4738.33820] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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] [Indexed: 11/18/2022] Open
Abstract
Background: Pterygium is one of the most common conjunctival diseases among ophthalmic pathologies. The frequency of recurrences is high, either after surgical treatment or after treatment combined with mitomycin C or beta-radiation therapy. Aims: The purpose of this study was to determine whether concanavalin A (ConA) lectin bound to the pterygial surface can be used to detect recurrence or remnants of pterygium after surgical excision. Materials and Methods: This was a prospective study on 20 patients with pterygium, divided in five stages, pre-surgery, early post-surgery (24h), late post-surgery (seven days), very late post-surgery (four weeks) and two months after the procedure. A drop of fluorescein-marked Con A (35 µg/mL) was instilled in the lower conjunctival eyelid sac and the eye was exposed to the light of a Wood′s lamp for an average of five seconds. Results: Out of the 20 patients, eight patients were found to have fluorescent stretch marks over the scar corresponding to residual pterygial tissue at four weeks; two months after the procedure of re-surgery we observed no fluorescent remnants. All residual pterygia were confirmed through histochemistry studies. Conclusion: It was possible to detect remnants of pterygium in postoperative patients and recurrences in early pre-clinical stages through the visualization of fluorescent ConA bound to the pterygial surface.
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Affiliation(s)
- Juan A Díaz-González
- Department of Ophthalmology, Dr. Aurelio Valdivieso General Hospital, Health Services of State of Oaxaca, Mexico
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Santaella-Verdejo A, Gallegos B, Pérez-Campos E, Hernández P, Zenteno E. Use ofAmaranthus leucocarpusLectin to Differentiate Cervical Dysplasia (CIN). Prep Biochem Biotechnol 2007; 37:219-28. [PMID: 17516251 DOI: 10.1080/10826060701386703] [Citation(s) in RCA: 10] [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: 10/23/2022]
Abstract
Alterations in O-glycosylation of proteins in cell surfaces can originate disorder in cellular function, as well as in cell transformation and tumoral differentiation. In this work, we investigate changes in O-glycosylation in cervical intraepithelial dysplasia (CIN) at different stages of differentiation (CIN I, CIN II, and CIN III) using lectins specific for O-glycosidically linked glycans. Twenty cases with CIN I, CIN II, and CIN III dysplasias each, and 20 normal cases were studied by lectin histochemistry and evaluated under optical microscopy. The lectins from Glycine max and Griffonia simplicifolia showed no differences in their recognition pattern among the different CIN stages and normal tissue. Dolichos Biflorus lectin recognized CIN I dysplasia. Lectin from Amaranthus leucocarpus showed increased reactivity in the presence of CIN II dysplasia, compared with CIN I and CIN III. These results suggest that subtle modifications in the O-glycosylation pattern could be considered in diagnosis or prognosis of cervical precancerous stages.
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Affiliation(s)
- Arturo Santaella-Verdejo
- Centro de Investigaciones en Ciencias Medicas y Biológicas, Facultad de Medicina UABJO, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, México
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Martínez-Cruz R, Canseco MDSP, Lopez-Martínez J, Cruz PAH, Pérez-Campos E, Cruz MM, Alva FC, Majluf-Cruz A, Zenteno E, Ruiz-Argüelles A. Interaction of the protein C activation peptide with platelets. Prep Biochem Biotechnol 2007; 37:139-47. [PMID: 17454824 DOI: 10.1080/10826060701199072] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The peptide NH(2)-DTEDQEDQVDPR-COOH is released during activation of protein C zymogen. We measured the effect of a synthetic peptide with an amino acid sequence similar to that of the natural peptide on platelets from healthy individuals using platelet aggregometry. We found that this synthetic peptide inhibits platelet aggregation induced by thrombin; furthermore, it diminishes mobilization of intraplatelet calcium. Molecular docking showed weak interaction between the synthetic peptide and thrombin. Our findings suggest that this synthetic peptide may interact with a receptor located on the platelet cell membrane.
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Affiliation(s)
- Ruth Martínez-Cruz
- Centro de Investigación en Ciencias Médicas y Biológicas, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, México
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