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Hernández-García S, Flores-García M, Maldonado-Vega M, Hernández G, Meneses-Melo F, López-Vanegas NC, Calderón-Salinas JV. Adaptive changes in redox response and decreased platelet aggregation in lead-exposed workers. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 100:104134. [PMID: 37116628 DOI: 10.1016/j.etap.2023.104134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 03/11/2023] [Accepted: 04/24/2023] [Indexed: 05/06/2023]
Abstract
Chronic lead exposure can generate pro-oxidative and pro-inflammatory conditions in the blood, related to high platelet activation and aggregation, altering cell functions. We studied ADP-stimulated aggregation and the oxidant/antioxidant system of platelets from chronically lead-exposed workers and non-exposed workers. Platelet aggregation was low in lead-exposed workers (62 vs. 97%), who had normal platelet counts and showed no clinical manifestations of hemostatic failure. ADP-activated platelets from lead-exposed workers failed to increase superoxide release (3.3 vs. 6.6 µmol/g protein), had low NADPH concentration (60 vs. 92 nmol/mg protein), high concentration of hydrogen peroxide (224 vs. 129 nmol/mg protein) and high plasma PGE2 concentration (287 vs. 79 pg/mL). Altogether, those conditions, on the one hand, could account for the low platelet aggregation and, on the other, indicate an adaptive mechanism for the oxidative status of platelets and anti-aggregating molecules to prevent thrombotic problems in the pro-oxidant and pro-inflammatory environment of chronic lead exposure.
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Affiliation(s)
- Sandra Hernández-García
- Biochemistry Department, Centro de Investigación y de Estudios Avanzados-IPN (Cinvestav), Mexico City, Mexico
| | - Mirthala Flores-García
- Molecular Biology Department, Instituto Nacional de Cardiología "Dr. Ignacio Chávez", Mexico City, Mexico
| | - María Maldonado-Vega
- Planning, Teaching and Research Department, Hospital Regional de Alta Especialidad del Bajío. León, Guanajuato, Mexico
| | - Gerardo Hernández
- Section Methodology of Science, Centro de Investigación y de Estudios Avanzados-IPN (Cinvestav), Mexico City, Mexico
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Jiménez-Orozco FA, Galicia-Zapatero S, López-López E, Medina-Franco JL, Cedeño FL, Flores-García M, Mejia-Domínguez A, de la Peña-Díaz A. Monosubstituted Coumarins Inhibit Epinephrine-Induced Platelet Aggregation Antiplatelet Effect of Monosubstituted Coumarins. Cardiovasc Hematol Agents Med Chem 2021; 20:43-51. [PMID: 33906594 PMCID: PMC9127734 DOI: 10.2174/1871525719666210427132808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 03/15/2021] [Accepted: 03/29/2021] [Indexed: 11/22/2022]
Abstract
Aim The aim of this study was to evaluate the in vitro effect of coumarin and 15 monosubstituted derivatives on the inhibition of human platelet aggregation induced by various pro-aggregatory agonists, particularly by epinephrine. Background The emergence of residual platelet reactivity during the use of conventional antiplatelet agents (acetylsalicylic acid and clopidogrel) is one of the main causes of double therapy´s therapeutic failure. Platelet adrenoceptors participate in residual platelet reactivity. Therefore, it is necessary to develop new antiplatelet agents that inhibit epinephrine-induced platelet aggregation as a new therapeutic strategy. Information on the antiplatelet activity of coumarins in inhibiting epinephrine-induced aggregation is limited. Objective The objective of this study was to establish the structure-activity relationship (SAR) of coumarin derivatives with hydroxy, methoxy, and acetoxy groups in different positions of the coumarin nucleus to identify the most active molecules. Moreover, this study aimed to use in silico studies to suggest potential drug targets to which the molecules bind to produce antiplatelet effects. Methods The platelet aggregation was performed using a Lumi-aggregometer; the inhibitory activity of 16 compounds were evaluated by inducing the aggregation of human platelets (250 × 103/μl) with epinephrine (10 µM), collagen (2 µg/ml) or ADP (10 µM). The aggregation of control platelets was considered 100% of the response for each pro-aggregatory agonist. Results Eleven molecules inhibited epinephrine-induced aggregation, with 3-acetoxycoumarin and 7-methoxycoumarin being the most active. Only coumarin inhibited collagen-induced platelet aggregation, but no molecule showed activity when using ADP as an inducer. Conclusions In silico studies suggest that most active molecules might have antagonistic interactions in the α2 and β2 adrenoceptors. The antiplatelet actions of these coumarins have the potential to reduce residual platelet reactivity and thus contribute to the development of future treatments for patients who do not respond adequately to conventional agents.
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Affiliation(s)
- Fausto Alejandro Jiménez-Orozco
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán 04510, CDMX. Mexico
| | - Sergio Galicia-Zapatero
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán 04510, CDMX. Mexico
| | - Edgar López-López
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán 04510, CDMX. Mexico
| | - José L Medina-Franco
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán 04510, CDMX. Mexico
| | - Fernando León Cedeño
- Departamento de Química Orgánica, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán 04510, CDMX. Mexico
| | - Mirthala Flores-García
- Departamento de Biología Molecular, Instituto Nacional de Cardiología Ignacio Chávez, Tlalpan 14080, CDMX. Mexico
| | - Ana Mejia-Domínguez
- Banco de Sangre, Instituto Nacional de Cardiología Ignacio Chávez, Tlalpan 14080, CDMX. Mexico
| | - Aurora de la Peña-Díaz
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán 04510, CDMX. Mexico
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López-Sánchez J, Ponce-Alquicira E, Pedroza-Islas R, de la Peña-Díaz A, Soriano-Santos J. Effects of heat and pH treatments and in vitro digestion on the biological activity of protein hydrolysates of Amaranthus hypochondriacus L. grain. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2016; 53:4298-4307. [PMID: 28115770 PMCID: PMC5223265 DOI: 10.1007/s13197-016-2428-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 11/22/2016] [Accepted: 11/30/2016] [Indexed: 11/30/2022]
Abstract
The aim of this work was to assess the effects of temperature (T), time (t) and pH treatments and an in vitro digestion on the stability of the angiotensin I-converting-enzyme-inhibitory activity (ACEIA) and antithrombotic activity (ATA; assessed as inhibition of platelet aggregation) of selected protein hydrolysates of amaranth named Alb1H103 and GloH88 and GluH24 with dipeptidyl peptidase IV inhibitory activity (DPPIVIA). Heat treatment (40-100 °C) for 1 h showed no significant differences among ACEIA, DPPIVIA and ATA of the heated hydrolysates at pH 4 and 7. There was no statistically significant loss of any bioactivity under heat treatment for 3 h at pH 4.0. Alb1H103 and GluH24 maintained the inhibitory activity of ACE and ATA at pH 7.0 for 3 h, whereas GloH88 maintained ACEIA and ATA for 2.0 h at pH 7.0. The pH effect on hydrolysates bioactivity was assessed in the range of 2.0-12.0. This was negligible on ACEIA, ATA and DPPIVIA. The in vitro digestion was performed using pepsin, trypsin (T) and α-chymotrypsin (C). A previous treatment of hydrolysates with pepsin improved the proteolytic activities of T and C. The hydrolysates kept at 100 °C for 1 h at pH 4.0, showed a significant increase in bioactivity. Conversely, a treatment at pH 7.0 showed no significant difference (p < 0.05) in the hydrolysates bioactivities after their digestion. Thus, biological activity of hydrolysates may be preserved or enhanced, depending on their processing conditions.
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Affiliation(s)
- J. López-Sánchez
- Departamento de Biotecnología, Universidad Autónoma Metropolitana, Campus Iztapalapa, Av. San Rafael Atlixco No. 186, Col. Vicentina, Ap. P. 55-535, Deleg. Iztapalapa, 09340 Mexico City, Mexico
| | - E. Ponce-Alquicira
- Departamento de Biotecnología, Universidad Autónoma Metropolitana, Campus Iztapalapa, Av. San Rafael Atlixco No. 186, Col. Vicentina, Ap. P. 55-535, Deleg. Iztapalapa, 09340 Mexico City, Mexico
| | - R. Pedroza-Islas
- Departamento de Ingeniería y Ciencias Químicas, Universidad Iberoamericana, Prolongación Paseo de la Reforma 880, Lomas de Santa Fe, 01219 Mexico City, Mexico
| | - A. de la Peña-Díaz
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, Coyoacán, 04510 Mexico City, Mexico
| | - J. Soriano-Santos
- Departamento de Biotecnología, Universidad Autónoma Metropolitana, Campus Iztapalapa, Av. San Rafael Atlixco No. 186, Col. Vicentina, Ap. P. 55-535, Deleg. Iztapalapa, 09340 Mexico City, Mexico
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Calderón-Cruz B, Rodríguez-Galván K, Manzo-Francisco LA, Vargas-Alarcón G, Fragoso JM, Peña-Duque MA, Reyes-Gómez CA, Martínez-Ríos MA, De la Peña-Díaz A. C3435T polymorphism of the ABCB1 gene is associated with poor clopidogrel responsiveness in a Mexican population undergoing percutaneous coronary intervention. Thromb Res 2015; 136:894-8. [PMID: 26362473 DOI: 10.1016/j.thromres.2015.08.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 08/28/2015] [Accepted: 08/29/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Clopidogrel is a pro-drug and its intestinal absorption is limited by the P-glycoprotein encoded by the ABCB1 gene. It is metabolized hepatically by cytochrome P450 enzymes encoded by CYP genes to produce an active metabolite that antagonizes the P2Y12 platelet receptor. Some patients exhibit poor clopidogrel responsiveness due to polymorphisms, resulting in thrombotic events. The aim of this study was to determine the relationship between poor clopidogrel responsiveness and the ABCB1, CYP and P2RY12 gene polymorphisms among patients undergoing percutaneous coronary intervention (PCI). METHODS AND RESULTS Two hundred seventy-six patients who underwent PCI were included in this study. Clopidogrel responsiveness was determined via optical aggregometry in platelet-rich plasma using 10 μM ADP. Patients exhibiting a platelet aggregation response higher than 70% were classified as poor responders. The genetic polymorphisms were analyzed via real-time PCR. Poor responsiveness to clopidogrel was noted in 22.1% of the patients. The TT genotype of the C3435T polymorphism of the ABCB1 gene and omeprazole usage were each associated with poor clopidogrel responsiveness (Exp (β) 2.73, p=0.009 and Exp (β) 3.86, p=0.04, respectively). CONCLUSION Poor clopidogrel responsiveness is associated with the TT genotype of the C3435T polymorphism of the ABCB1 gene.
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Affiliation(s)
- Beatriz Calderón-Cruz
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, México, D.F., Mexico
| | - Karen Rodríguez-Galván
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, México, D.F., Mexico
| | - Luis Antonio Manzo-Francisco
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, México, D.F., Mexico
| | | | - José Manuel Fragoso
- Departamento de Biología Molecular, Instituto Nacional de Cardiología, México D.F., Mexico
| | | | | | | | - Aurora De la Peña-Díaz
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, México, D.F., Mexico; Departamento de Biología Molecular, Instituto Nacional de Cardiología, México D.F., Mexico.
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Lemini C, Medina M, Avila ME, Cruz-Lemini P, Canchola E, Santillan R, Lemus AE. In vivo and in vitro evaluation of the estrogenic properties of the 17β-(butylamino)-1,3,5(10)-estratrien-3-ol (buame) related to 17β-estradiol. Pharmacol Rep 2012; 64:940-50. [DOI: 10.1016/s1734-1140(12)70889-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Revised: 04/05/2012] [Indexed: 11/29/2022]
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