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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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2
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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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3
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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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4
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Hernández‐Huerta MT, Pérez‐Campos Mayoral L, Romero Díaz C, Martínez Cruz M, Mayoral‐Andrade G, Sánchez Navarro LM, Pina‐Canseco MDS, Cruz Parada E, Martínez Cruz R, Pérez‐Campos Mayoral E, Pérez Santiago AD, Vásquez Martínez G, Pérez‐Campos E, Matias‐Cervantes CA. Analysis of SARS-CoV-2 mutations in Mexico, Belize, and isolated regions of Guatemala and its implication in the diagnosis. J Med Virol 2021; 93:2099-2114. [PMID: 33049069 PMCID: PMC7675408 DOI: 10.1002/jmv.26591] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/15/2020] [Accepted: 10/07/2020] [Indexed: 12/24/2022]
Abstract
The genomic sequences of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) worldwide are publicly available and are derived from studies due to the increase in the number of cases. The importance of study of mutations is related to the possible virulence and diagnosis of SARS-CoV-2. To identify circulating mutations present in SARS-CoV-2 genomic sequences in Mexico, Belize, and Guatemala to find out if the same strain spread to the south, and analyze the specificity of the primers used for diagnosis in these samples. Twenty three complete SARS-CoV-2 genomic sequences, available in the GISAID database from May 8 to September 11, 2020 were analyzed and aligned versus the genomic sequence reported in Wuhan, China (NC_045512.2), using Clustal Omega. Open reading frames were translated using the ExPASy Translate Tool and UCSF Chimera (v.1.12) for amino acid substitutions analysis. Finally, the sequences were aligned versus primers used in the diagnosis of COVID-19. One hundred and eighty seven distinct variants were identified, of which 102 are missense, 66 synonymous and 19 noncoding. P4715L and P5828L substitutions in replicase polyprotein were found, as well as D614G in spike protein and L84S in ORF8 in Mexico, Belize, and Guatemala. The primers design by CDC of United States showed a positive E value. The genomic sequences of SARS-CoV-2 in Mexico, Belize, and Guatemala present similar mutations related to a virulent strain of greater infectivity, which could mean a greater capacity for inclusion in the host genome and be related to an increased spread of the virus in these countries, furthermore, its diagnosis would be affected.
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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 OaxacaOaxacaMexico
| | - Carlos Romero Díaz
- Centro de Investigación Facultad de Medicina UNAM‐UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma “Benito Juárez” de OaxacaOaxacaMexico
| | | | - Gabriel Mayoral‐Andrade
- Centro de Investigación Facultad de Medicina UNAM‐UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma “Benito Juárez” de OaxacaOaxacaMexico
| | | | - María Del Socorro Pina‐Canseco
- Centro de Investigación Facultad de Medicina UNAM‐UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma “Benito Juárez” de OaxacaOaxacaMexico
| | | | - Ruth Martínez Cruz
- Centro de Investigación Facultad de Medicina UNAM‐UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma “Benito Juárez” de OaxacaOaxacaMexico
| | - Eduardo Pérez‐Campos Mayoral
- Centro de Investigación Facultad de Medicina UNAM‐UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma “Benito Juárez” de OaxacaOaxacaMexico
| | | | | | - Eduardo Pérez‐Campos
- Centro de Investigación Facultad de Medicina UNAM‐UABJO, Facultad de Medicina y Cirugía, Universidad Autónoma “Benito Juárez” de OaxacaOaxacaMexico
- Tecnológico Nacional de México/IT de OaxacaOaxacaMexico
- Laboratorio de Patología Clínica “Dr. Eduardo Pérez Ortega”OaxacaMexico
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5
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Wells J, Ortega D, Steinhoff U, Dutz S, Garaio E, Sandre O, Natividad E, Cruz MM, Brero F, Southern P, Pankhurst QA, Spassov S. Challenges and recommendations for magnetic hyperthermia characterization measurements. Int J Hyperthermia 2021; 38:447-460. [PMID: 33730953 DOI: 10.1080/02656736.2021.1892837] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
PURPOSE The localized heating of magnetic nanoparticles (MNPs) via the application of time-varying magnetic fields - a process known as magnetic field hyperthermia (MFH) - can greatly enhance existing options for cancer treatment; but for broad clinical uptake its optimization, reproducibility and safety must be comprehensively proven. As part of this effort, the quantification of MNP heating - characterized by the specific loss power (SLP), measured in W/g, or by the intrinsic loss power (ILP), in Hm2/kg - is frequently reported. However, in SLP/ILP measurements to date, the apparatus, the analysis techniques and the field conditions used by different researchers have varied greatly, leading to questions as to the reproducibility of the measurements. MATERIALS AND METHODS An interlaboratory study (across N = 21 European sites) of calorimetry measurements that constitutes a snapshot of the current state-of-the-art within the MFH community has been undertaken. Identical samples of two stable nanoparticle systems were distributed to all participating laboratories. Raw measurement data as well as the results of in-house analysis techniques were collected along with details of the measurement apparatus used. Raw measurement data was further reanalyzed by universal application of the corrected-slope method to examine relative influences of apparatus and results processing. RESULTS The data show that although there is very good intralaboratory repeatability, the overall interlaboratory measurement accuracy is poor, with the consolidated ILP data having standard deviations on the mean of ca. ± 30% to ± 40%. There is a strong systematic component to the uncertainties, and a clear rank correlation between the measuring laboratory and the ILP. Both of these are indications of a current lack of normalization in this field. A number of possible sources of systematic uncertainties are identified, and means determined to alleviate or minimize them. However, no single dominant factor was identified, and significant work remains to ascertain and remove the remaining uncertainty sources. CONCLUSION We conclude that the study reveals a current lack of harmonization in MFH characterization of MNPs, and highlights the growing need for standardized, quantitative characterization techniques for this emerging medical technology.
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Affiliation(s)
- J Wells
- Physikalisch-Technische Bundesanstalt, Berlin, Germany
| | - D Ortega
- Condensed Matter Physics department, Faculty of Sciences, Campus Universitario Río San Pedro s/n, Cádiz, Spain.,IMDEA Nanociencia, Ciudad Universitaria de Cantoblanco, Madrid, Spain
| | - U Steinhoff
- Physikalisch-Technische Bundesanstalt, Berlin, Germany
| | - S Dutz
- Technische Universität Ilmenau, Institut für Biomedizinische Technik und Informatik, Ilmenau, Germany
| | - E Garaio
- Nafarroako Unibertsitate Publikoan, Pamplona, Spain
| | - O Sandre
- Université de Bordeaux, Pessac, France.,CNRS, Laboratoire de Chimie des Polymères Organiques, Pessac, France
| | - E Natividad
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, Spain
| | - M M Cruz
- BioISI, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - F Brero
- Dipartimento di Fisica, Università degli studi di Pavia, Pavia, Italy
| | - P Southern
- Healthcare Biomagnetics Laboratory, University College London, London, UK.,Resonant Circuits Limited, London, UK
| | - Q A Pankhurst
- Healthcare Biomagnetics Laboratory, University College London, London, UK.,Resonant Circuits Limited, London, UK
| | - S Spassov
- Centre de Physique du Globe de l'Institut Royal Météorologique, Dourbes, Belgium
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6
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Romero Díaz C, Mayoral LPC, Hernández Huerta MT, Majluf-Cruz AS, Plascencia Mora SE, Pérez-Campos Mayoral E, Mayoral Andrade G, Martínez Cruz M, Zenteno E, Matias Cervantes CA, Vásquez Martínez G, Martínez Cruz R, Ángel Reyes Franco M, Cruz Parada E, Pina Canseco S, Mayoral EPC. The influence of hydrogen ions on coagulation in traumatic brain injury, explored by molecular dynamics. Brain Inj 2021; 35:842-849. [PMID: 33678100 DOI: 10.1080/02699052.2021.1895312] [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] [Indexed: 10/22/2022]
Abstract
Background: Patients in intensive care units with traumatic brain injuries (TBI) frequently present acid-base abnormalities and coagulability disorders, which complicate their condition.Objective: To identify protonation through in silico simulations of molecules involved in the process of coagulation in standard laboratory tests.Materials and methods: Ten patients with TBI were selected from the intensive care unit in addition to ten "healthy control subjects", and another nine patients as "disease control subjects"; the latter being a comparative group, corresponding to subjects with diabetes mellitus 2 (DM2). Fibrinogen, FVII, FVIII, FIX, FX, and D-dimer in the presence of acidification were evaluated in 20 healthy subjects in order to compare clinical results with molecular dynamics (MD), and to explain proton interactions and coagulation molecules.Results: The TBI group presented a slight, non-significant increase in D-dimer; but this was not present in "disease control subjects". Levels of fibrinogen, FVII, FIX, FX, and D-dimer were affected in the presence of acidification. We observed that various specific residues of coagulation factors "trap" ions.Conclusion: Protonation of tissue factor and factor VIIa may favor anticoagulant mechanisms, and protonation does not affect ligand binding sites of GPIIb/IIIa (PAC1) suggesting other causes for the low affinity to PAC1.
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Affiliation(s)
| | - Laura Pérez Campos Mayoral
- Research Centre Medicine UNAM-UABJO, Faculty of Medicine, Benito Juárez Autonomous University of Oaxaca, Oaxaca, Mexico
| | | | - Abraham Salvador Majluf-Cruz
- Medical Research Unit in Thrombosis, Haemostasis and Atherogenesis, Mexican Institute of Social Security/IMSS, Mexico City, Mexico
| | | | - Eduardo Pérez-Campos Mayoral
- 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
| | | | - Edgar Zenteno
- School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | | | | | - Ruth Martínez Cruz
- Research Centre Medicine UNAM-UABJO, Faculty of Medicine, Benito Juárez Autonomous University of Oaxaca, Oaxaca, Mexico
| | | | | | - Socorro Pina Canseco
- Research Centre Medicine UNAM-UABJO, Faculty of Medicine, Benito Juárez Autonomous University of Oaxaca, Oaxaca, Mexico
| | - Eduardo Pérez-Campos Mayoral
- National Technological of Mexico/ITOaxaca, Oaxaca, Mexico.,Clinical Pathology Laboratory, "Dr. Eduardo Pérez Ortega", Oaxaca, Mexico
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7
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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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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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Campoy Gómez ME, Hernández García MÁ, Martínez Cruz M. Producción y comercialización de carne porcina y ovo-caprina, ¿cadena productiva o pervivencia de una necesidad vuelta tradición? Miahuatlán de Porfirio Díaz, Oaxaca, México. Revista COLSAN 2019. [DOI: 10.21696/rcsl92020191040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
El artículo analiza y caracteriza la cadena productiva de carne porcina y ovicaprina con base en los oficios en los sistemas productivos y de comercialización tradicional. Se trata de una investigación cualitativa de codificación abierta a partir del enfoque de la teoría fundamentada mediante la guía entrevista como instrumento. Con base en la valoración de distintos oficios que rodean las cadenas productivas porcina y ovicaprina, se identifican problemáticas y perspectivas particulares como la desarticulación de las cadenas productivas, que dificulta a los trabajadores mejorar su producto, único medio de supervivencia. Se determina que quienes realizan estos trabajos desconocen su función dentro de la cadena productiva y se encuentran aislados con sus problemáticas.
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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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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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Silva C, Costa ARG, Cruz MM, da Silva RC, Borges RP, Alves LC, Godinho M. Nitrogen and argon doped zinc oxide. J Phys Condens Matter 2010; 22:346005. [PMID: 21403270 DOI: 10.1088/0953-8984/22/34/346005] [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] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In this work argon and nitrogen were implanted into ZnO single crystals in order to compare the influence of these non-magnetic elements in the magnetic and electrical behaviour of zinc oxide. The results indicate that both nitrogen and argon implantations induce magnetic defects in ZnO, although these do not remain stable upon annealing. The comparison between the electrical behaviour of argon and nitrogen implanted crystals indicates that mobile charge carriers exist in the argon implanted sample after annealing, but were not detected in the nitrogen implanted sample.
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Affiliation(s)
- C Silva
- Centro de Física da Matéria Condensada da Universidade de Lisboa, Campo Grande, Lisboa, Portugal
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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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Cruz MM, da Silva RC, Franco N, Godinho M. Ferromagnetism induced in rutile single crystals by argon and nitrogen implantation. J Phys Condens Matter 2009; 21:206002. [PMID: 21825539 DOI: 10.1088/0953-8984/21/20/206002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The magnetic properties of Ar- and N-implanted single crystalline TiO(2) rutile were studied and correlated with the induced disorder in order to clarify the influence of defects in the magnetic behaviour. Nominal fluences of 1 × 10(17) and 2 × 10(17) cm(-2) and an implantation energy of 100 keV were used. The as-implanted single crystals exhibited ferromagnetic behaviour up to 380 K. Annealing at 1073 K induced recovery of the lattice structure and the decrease of the ferromagnetic moment in the case of Ar-implanted samples, but the magnetic moment did not change significantly for the samples implanted with nitrogen. No impurities, other than the implanted species were detected and consequently the ferromagnetic behaviour is attributed to defects created during implantation, which in the case of nitrogen remained in the lattice even after partial recovery of the structure.
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Affiliation(s)
- M M Cruz
- CFMC-Universidade de Lisboa, Campo Grande, Ed. C8, 1749-016 Lisboa, Portugal. Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Ed. C8, 1749-016 Lisboa, Portugal
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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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Santos AB, Cruz MM, Gouveia J. [A clinical case of chronic thrombotic thrombocytopenic purpura]. ACTA MEDICA PORT 1989; 2:219-20. [PMID: 2515756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
This is a TTP report of the case of a 29 year old female who entered into apparent complete clinical remission, after EP with fresh frozen plasma and corticotherapy. Unusual large plasma Factor VIII: vWF by two-dimensional Immunoelectrophoresis is the biological change described by Moake and Sufficient in itself to confirm the chronic TTP diagnosis.
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Gates DJ, Alms M, Cruz MM. Hinged cast and roller traction for fractured femur. A system of treatment for the Third World. J Bone Joint Surg Br 1985; 67:750-6. [PMID: 4055875 DOI: 10.1302/0301-620x.67b5.4055875] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Hinged casts and roller traction were used in two developing countries to treat fractured femora, most of which were due to road traffic accidents or civil violence. This method of treatment, developed by Neufeld, is particularly useful in the Third World because it uses local materials, adapted in a hospital workshop, and circumvents the difficulties and complications of standard traction and of operative treatment. The results are reported from 11 patients treated in Uganda in 1979 and from 110 treated in the Dominican Republic in 1981 and 1982. All but one fracture united without complication or significant shortening after a brief period in hospital. The method was easily taught to hospital staff and is strongly recommended.
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