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Sarzo B, Abumallouh R, Marín N, Llop S, Beneito A, Lopez-Flores I, Ferrero N, Sakhi AK, Ballester F, Lopez-Espinosa MJ. Association between phenols and thyroid hormones: The role of iodothyronine deiodinase genes. Environ Pollut 2022; 311:119926. [PMID: 35964788 DOI: 10.1016/j.envpol.2022.119926] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/21/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Previous literature on prenatal phenol exposure and thyroid hormone (TH) alteration is conflicting, and the possible mechanisms of action involved remain unclear. We aimed to examine the association between prenatal phenol exposure and levels of maternal and neonatal THs, as well as the possible role of iodothyronine deiodinase (DIO) gene polymorphisms in this relation. We studied 387 Spanish mother-neonate pairs with measurements of maternal phenols, total triiodothyronine (TT3) and free thyroxine (FT4), maternal and neonatal thyroid-stimulating hormone (TSH), and maternal genotypes for single nucleotide polymorphisms in the DIO1(rs2235544) and DIO2(rs12885300) genes. We implemented multivariate linear and weighted quantile sum (WQS) regressions to examine the association between phenols and THs (including sex-stratified models for neonatal TSH) and investigated effect modification of genotypes in the maternal phenol-TH associations. In single exposure models, we found negative associations between maternal triclosan (TCS) and neonatal TSH (% change [95%CI]: -2.95 [-5.70, -0.11], per twofold phenol increase) - stronger for girls - and less clearly for maternal ethylparaben (EPB) and TSH (-2.27 [-4.55, 0.07]). In phenol mixture models, we found no association with THs. In the genetic interaction models, we found some evidence of effect modification of DIO gene polymorphisms with stronger negative associations between methylparaben (MPB), propylparaben (PPB), butylparaben (BPB) and TT3 as well as bisphenol A (BPA) and FT4 for DIO1(rs2235544)-CC. Stronger inverse associations for genotypes DIO2(rs12885300)-CC and DIO2(rs12885300)-CT and positive ones for DIO2(rs12885300)-TT were also reported for BPA and FT4. In conclusion, we found some evidence of an association between phenols and TSH during pregnancy and at birth in single exposure models, the latter being stronger for girls. Since no association was observed between maternal levels of phenols and TT3 or FT4, the possible role of the genetic background in these associations warrants further investigation.
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Affiliation(s)
- Blanca Sarzo
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain; Department of Microbiology and Ecology, University of Valencia, Valencia, Spain; School of Mathematics, University of Edinburgh, Edinburgh, UK
| | - Reem Abumallouh
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Natalia Marín
- Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain
| | - Sabrina Llop
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain.
| | - Andrea Beneito
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain
| | | | - Nerea Ferrero
- Clinical Chemistry Unit, Public Health Laboratory of Bilbao, Bizcaia, Spain
| | | | - Ferran Ballester
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain; Faculty of Nursing and Chiropody, University of Valencia, Valencia, Spain
| | - Maria-Jose Lopez-Espinosa
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain; Faculty of Nursing and Chiropody, University of Valencia, Valencia, Spain
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Álvarez-Rebollar J, Cravioto-Lagos J, Marín N, Solís-Villarreal E, Urrutia J. Representing point sets on the plane as permutations. INFORM PROCESS LETT 2022. [DOI: 10.1016/j.ipl.2021.106228] [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: 11/05/2022]
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Luca V, Marín N, Oliveira F, Ramírez-Vigueras A, Solé-Pi O, Szwarcfiter J, Urrutia J. Grid straight-line embeddings of trees with a minimum number of bends per path. INFORM PROCESS LETT 2022. [DOI: 10.1016/j.ipl.2021.106210] [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: 11/25/2022]
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de la Figuera M, Cinza S, Egocheaga I, Marín N, Prieto MA. Clinical characteristics and management of patients with atrial fibrillation treated with direct oral anticoagulants according to blood pressure control. Hipertens Riesgo Vasc 2018; 35:e1-e9. [PMID: 29454558 DOI: 10.1016/j.hipert.2018.01.003] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 01/10/2018] [Accepted: 01/12/2018] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To determine the clinical characteristics and management of hypertensive patients with nonvalvular atrial fibrillation (AF) treated with direct oral anticoagulants (DOACs) according to blood pressure (BP) control. METHODS For this purpose, data from two observational, cross-sectional and multicenter studies were combined. In both studies, patients on chronic treatment with anticoagulants and that were on current treatment with DOACs at least for 3 months were included. Adequate BP was defined as a systolic BP<140mmHg and a diastolic BP<90mmHg (<140/85mmHg if diabetes). RESULTS Overall, 1036 patients were included. Of these, 881 (85%) had hypertension that were finally analyzed. The presence of other risk factors and cardiovascular disease was common. Mean BP was 132.6±14.3/75.2±9.2mmHg and 70.5% of patients achieved BP goals. Those patients with a poor BP control had more frequently diabetes, and a history of prior labile INR. Patients had a high thromboembolic risk, but without significant differences according to BP control. By contrast, more patients with a poor BP control had a higher bleeding risk (HAS-BLED ≥3: 24.0% vs 35.4%; P<0.001). HAS-BLED score was an independent predictor of poor BP control (odds ratio 1.435; 95% confidence interval 1.216-1.693; P<0.001). Satisfaction with anticoagulant treatment was independent of BP control. CONCLUSIONS More than two thirds of our patients with hypertension and AF anticoagulated with DOACs achieve BP targets, what is clearly superior to that reported in the general hypertensive population.
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Affiliation(s)
| | - S Cinza
- CS Porto do Son, Santiago de Compostela, Spain
| | | | - N Marín
- Bayer Hispania S.L., General Medicine CV, Barcelona, Spain.
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Guzman M, Muñoz D, Vivero M, Marín N, Ramírez M, Rivera MT, Vidal C, Gerhard J, González C. Acoustic markers to differentiate gender in prepubescent children's speaking and singing voice. Int J Pediatr Otorhinolaryngol 2014; 78:1592-8. [PMID: 25085074 DOI: 10.1016/j.ijporl.2014.06.030] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 06/25/2014] [Accepted: 06/28/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVES Investigation sought to determine whether there is any acoustic variable to objectively differentiate gender in children with normal voices. METHODS A total of 30 children, 15 boys and 15 girls, with perceptually normal voices were examined. They were between 7 and 10 years old (mean: 8.1, SD: 0.7 years). Subjects were required to perform the following phonatory tasks: (1) to phonate sustained vowels [a:], [i:], [u:], (2) to read a phonetically balanced text, and (3) to sing a song. Acoustic analysis included long-term average spectrum (LTAS), fundamental frequency (F0), speaking fundamental frequency (SFF), equivalent continuous sound level (Leq), linear predictive code (LPC) to obtain formant frequencies, perturbation measures, harmonic to noise ratio (HNR), and Cepstral peak prominence (CPP). Auditory perceptual analysis was performed by four blinded judges to determine gender. RESULTS No significant gender-related differences were found for most acoustic variables. Perceptual assessment showed good intra and inter rater reliability for gender. Cepstrum for [a:], alpha ratio in text, shimmer for [i:], F3 in [a:], and F3 in [i:], were the parameters that composed the multivariate logistic regression model to best differentiate male and female children's voices. CONCLUSION Since perceptual assessment reliably detected gender, it is likely that other acoustic markers (not evaluated in the present study) are able to make clearer gender differences. For example, gender-specific patterns of intonation may be a more accurate feature for differentiating gender in children's voices.
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Affiliation(s)
- Marco Guzman
- School of Communication Sciences, University of Chile, Santiago, Chile; Department of Otolaryngology, Voice Center, Las Condes Clinic, Santiago, Chile.
| | - Daniel Muñoz
- Barros Luco-Trudeau Hospital, Department of Network Management, Av. José Miguel Carrera 3604, Santiago, Chile
| | - Martin Vivero
- Del Salvador Hospital, Department of Otolaryngology, Avenida Salvador 364, Providencia, Santiago, Chile
| | - Natalia Marín
- Andres Bello National University, Fernandez Concha 700, Santiago, Chile
| | - Mirta Ramírez
- Andres Bello National University, Fernandez Concha 700, Santiago, Chile
| | | | - Carla Vidal
- Andres Bello National University, Fernandez Concha 700, Santiago, Chile
| | - Julia Gerhard
- Department of Otolaryngology, University of Miami, Miami, FL, USA
| | - Catalina González
- Andres Bello National University, Fernandez Concha 700, Santiago, Chile
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Ruiz-Artacho P, Rodríguez-Cerrillo M, Marín N, Martín-Sánchez FJ. Clinical decision rules and patients with acute pulmonary embolism. Arch Bronconeumol 2014; 51:205. [PMID: 24974137 DOI: 10.1016/j.arbres.2014.05.004] [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] [Received: 03/18/2014] [Revised: 05/11/2014] [Accepted: 05/19/2014] [Indexed: 10/25/2022]
Affiliation(s)
- Pedro Ruiz-Artacho
- Servicio de Urgencias, Hospital Clínico San Carlos, Madrid, España; Instituto de Investigación Sanitaria, Hospital Clínico San Carlos (IdISSC), Madrid, España.
| | | | - Natalia Marín
- Servicio de Urgencias, Hospital Clínico San Carlos, Madrid, España
| | - Francisco Javier Martín-Sánchez
- Servicio de Urgencias, Hospital Clínico San Carlos, Madrid, España; Instituto de Investigación Sanitaria, Hospital Clínico San Carlos (IdISSC), Madrid, España
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Ordóñez-Ordóñez L, Marín N, Jens C, Restrepo N. Diagnostic Test Validation: FIESTA Sequence of Magnetic Resonance Imaging in Vestibular Schwannoma Diagnosis. Skull Base Surg 2014. [DOI: 10.1055/s-0034-1384154] [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: 10/20/2022]
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Marín N, Eixarch H, Mansilla MJ, Rodríguez-Martín E, Mecha M, Guaza C, Álvarez-Cermeño JC, Montalban X, Villar LM, Espejo C. Anti-myelin antibodies play an important role in the susceptibility to develop proteolipid protein-induced experimental autoimmune encephalomyelitis. Clin Exp Immunol 2014; 175:202-7. [PMID: 24188195 DOI: 10.1111/cei.12233] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/29/2013] [Indexed: 11/28/2022] Open
Abstract
Multiple sclerosis (MS) is the most common demyelinating disease of the central nervous system. It is an autoimmune disorder in which activated T cells cross the blood-brain barrier (BBB) to initiate an inflammatory response that leads to demyelination and axonal damage. The key mechanisms responsible for disease initiation are still unknown. We addressed this issue in experimental autoimmune encephalomyelitis (EAE), the animal model of MS. It is widely known that EAE manifests only in certain strains when immunized with myelin proteins or peptides. We studied the differential immune responses induced in two mouse strains that are susceptible or resistant to EAE induction when they are immunized with the 139-151 peptide of proteolipid protein, an encephalitogenic peptide capable of inducing EAE in the susceptible strain. The adequate combination of major histocompatibility complex alleles and myelin peptides triggered in susceptible mice a T helper type 17 (Th17) response capable of inducing the production of high-affinity anti-myelin immunoglobulin (Ig)G antibodies. These were not detected in resistant mice, despite immunization with the encephalitogenic peptide in junction with complete Freund's adjuvant and pertussis toxin, which mediate BBB disruption. These data show the pivotal role of Th17 responses and of high-affinity anti-myelin antibodies in EAE induction and that mechanisms that prevent their appearance can contribute to resistance to EAE.
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Affiliation(s)
- N Marín
- Multiple Sclerosis Unit, Immunology and Neurology Departments, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain; Red Española de Esclerosis Múltiple (REEM), RETICS, Fondo de Investigación Sanitaria, Instituto de Salud Carlos III, Madrid, Spain
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Rodríguez-Lozano FJ, Bueno C, Insausti CL, Meseguer L, Ramírez MC, Blanquer M, Marín N, Martínez S, Moraleda JM. Mesenchymal stem cells derived from dental tissues. Int Endod J 2011; 44:800-6. [PMID: 21477154 DOI: 10.1111/j.1365-2591.2011.01877.x] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Regeneration of tissues occurs naturally due to the existence of stem cells with the capacity to self-regenerate and differentiate; however, regenerative capacity decreases with age, and in many cases, regeneration is not sufficient to repair the damage produced by degenerative, ischaemic, inflammatory, or tumour-based diseases. In the last decade, advances have been made in the understanding of stem cells, the genes that control the alternative fates of quiescence and differentiation, and the niches that provide specific signals that modulate cell fate decisions. Embryonic stem-cell research is shedding light on the secrets of development. Adult stem cells (AS cells) are available from several sources. Bone marrow and connective tissue have been used in preliminary clinical trials for regenerative therapy. Recently, several types of AS cells have been isolated from teeth, including dental pulp stem cells, stem cells from human exfoliated deciduous teeth, periodontal ligament stem cells, dental follicle progenitor stem cells and stem cells from apical papilla. Preliminary data suggest that these cells have the capacity to differentiate into osteoblasts, adipocytes, chondrocytes and neural cells. If confirmed, these data would support the use of these cells, which are easily obtained from extracted teeth, in dental therapies, including in regenerative endodontics, providing a new therapeutic modality.
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Affiliation(s)
- F J Rodríguez-Lozano
- Cell Therapy Unit. Hospital Universitary Virgen de la Arrixaca, Faculty of Medicine, University of Murcia, Murcia, Spain
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Ramírez-Andreo A, Hernández-Gil A, Brufau C, Marín N, Jiménez N, Hernández-Gil J, Tercedor J, Soria C. Dermatitis de contacto alérgica a tatuajes temporales de henna. Actas Dermo-Sifiliográficas 2007. [DOI: 10.1016/s0001-7310(07)70021-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Ramírez-Andreo A, Hernández-Gil A, Brufau C, Marín N, Jiménez N, Hernández-Gil J, Tercedor J, Soria C. [Allergic contact dermatitis to temporary henna tattoos]. Actas Dermosifiliogr 2007; 98:91-5. [PMID: 17397594] [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: 05/14/2023] Open
Abstract
INTRODUCTION In the last years there have been increasing reports of adverse cutaneous reactions to temporary black henna tattoos. Black henna does not exist naturally, it is obtained from original henna after the addition of other compounds, among them paraphenylenediamine (PPD), that darken it and facilitate the process of tattoing. Paraphenylenediamine is an aromatic compound that presents cross reactions with other components that have a benzene ring in their molecular structure. Many of these products may be present in the daily life of any person. MATERIAL AND METHODS We reviewed patients that have shown erythema, inflammation and/or vesiculation in a previously tattooed area. The patients have undergone a temporary tattoo in street stalls during the summer period (2004-2005). A total of five patients were included, there were four men and one woman with a mean age of 13 years (3-34) and a mean latency period of 9.4 days (5-14). Black ink and plastic stencils were used to perform the tattoo. None of the patients has had previous contact with hair dyes or tattoos and none of them referred a personal history of atopic dermatitis. Patch testing was carried out using the standard set of the Spanish Group for Research in Contact Dermatitis [GEIDC] (TRUE TEST, Pharmacia. Hillerod. Denmark), with readings at 48 and 96 hours. RESULTS Sensitization to PPD is confirmed in three patients, one of them was also sensitized to formaldehyde. Hypopigmented scars persist in three patients. CONCLUSIONS Black henna pseudotattoos are a source of sensitization to PPD with potential severe consequences in a medium to long term. Currently there is no specific legislation with respect to the practice of this type of tattoos in our country.
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Affiliation(s)
- A Ramírez-Andreo
- Servicio de Dermatología, Hospital General Universitario Reina Sofía, Murcia, España.
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Krasovec S, Ornani A, Oleastro M, Rosenzweig S, Roy A, Perez L, Campos G, Marín N, Martinez A, Mahieu C, Manfredi MJ, Sisti A, Zelazko M. Efficacy and Tolerability of an Argentine Intravenous Immunoglobulin in Pediatric Patients with Primary Immunodeficiency Diseases. J Clin Immunol 2007; 27:227-32. [PMID: 17235689 DOI: 10.1007/s10875-006-9055-x] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2006] [Accepted: 11/03/2006] [Indexed: 11/24/2022]
Abstract
Inmunoglobulina G Endovenosa UNC is a 5% liquid Argentine intravenous immunoglobulin obtained from South American donors. This prospective trial was designed to evaluate if the product meets the minimal efficacy requirement of the US Food and Drug Administration of <1 serious infection/subject/year as well as its safety in pediatric patients with Primary Immunodeficiency Diseases. Thirty patients under the age of 18, with well-defined Primary Immunodeficiency Diseases received Inmunoglobulina G Endovenosa UNC (330-700 mg/kg every 3-4 weeks) for 6 months. Vital signs, laboratory abnormalities, adverse events and viral tests were assessed to evaluate safety. Two serious infections occurred (pneumonia and bacteriemia). The estimated infection rate was 0.114 serious infection/subject/year (95% CI, 0.003-0.2277). Minor adverse events occurred in 5.5% of infusions; fever and headache were the most common. Neither severe adverse events, nor abnormal laboratory values were observed. All viral assessments were negative. Inmunoglobulina G Endovenosa UNC meets the minimal efficacy requirement of the US Food and Drug Administration for pediatric Primary Immunodeficiency Diseases patients and showed efficacy and safety data comparable with other data published.
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Affiliation(s)
- S Krasovec
- Immunology Unit, Hospital de Pediatría "Prof. Dr. J. P. Garrahan", Combate de los Pozos 1881, Buenos Aires, (C 1245 AAM), Argentina
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Ramírez-Andreo A, Hernández-Gil A, Brufau C, Marín N, Jiménez N, Hernández-Gil J, Tercedor J, Soria C. Allergic Contact Dermatitis To Temporary Henna Tattoos. Actas Dermo-Sifiliográficas (English Edition) 2007. [DOI: 10.1016/s1578-2190(07)70402-x] [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: 11/29/2022] Open
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Pérez J, Marín N, Vallano A, Castells X, Capellà D. [Consumption and cost of antipsychotic drugs]. Actas Esp Psiquiatr 2005; 33:110-6. [PMID: 15768318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
INTRODUCTION In recent years, new atypical antipsychotic drugs have been marketed. This study aims to analyze the evolution of the consumption pattern and pharmaceutical cost of the antipsychotic drugs during the last years and the impact that the new atypical antipsychotic drugs have had. METHODS Based on the ECOM database of the Ministry of Health and Consumer Affairs of Spain, the sales data of the antipsychotic drugs in Catalonia during the 1990-2001 period have been chosen. The drugs have been classified into typical or classical and atypical. Consumption data have been expressed in daily defined dose (DDD) per 1,000 inhabitants and per day of treatment (DID), and cost data in constant euros. RESULTS Antipsychotic consumption increased from 3.31 DID in 1990 to 6.04 DID in 2001. Typical drugs consumption decreased (from 100 % consumption in 1990 to 46 % in 2001) and that of the atypical ones increased (from 1% consumption in the year 1993 to 54% in the year 2001). A change in the use pattern of different drugs is verified. In the year 1990, the most consumed drugs were flupenthixol (0.86 DID) and haloperidol (0.67 DID), and in the year 2001 olanzapine (1.69 DID) and risperidone (1.30 DID). The drugs with a greater increase in consumption were olanzapine, which multiplied its consumption five fold from 1997 to 2001 and risperidone, which multiplied it by 20 from 1994 to 2001. During the study period, the cost increased 13 times, above all due to increase in cost of atypical antipsychotics (from less than 1 % of the total cost in 1993 to 92 % of the total cost in 2001). The DDD cost of antipsychotics increased (6.48 euros in 1990 and 20.31 euros in 2001). However, that of the typical antipsychotics decreased (6.48 euros in 1990 and 4.62 euros in 2001) and that of the atypical ones increased (2.06 euros in 1993 and 15.69 euros in 2001). CONCLUSION The marketing of the new atypical antipsychotic drugs has had an extraordinary impact on antipsychotic drug consumption and cost. The cost/effectiveness ratio of the new atypical antipsychotic drugs in the clinical practice should be evaluated to determine the economic resources aimed at costs of the different antipsychotic drugs.
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Affiliation(s)
- J Pérez
- Fundació Institut Català de Farmacologia, Servicio de Farmacología Clínica, Hospital Universitario Vall d'Hebron, Universidad Autònoma, Barcelona
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Aviñó J, Díaz-Llopis M, España E, Johnsen-Soriano S, Romero B, Marín N, Muriach M, Bosch-Morell F, Romero FJ. [Chronic ethanol feeding induces oxidative stress in the optic nerve of rats]. Arch Soc Esp Oftalmol 2002; 77:263-8. [PMID: 12023745] [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: 02/25/2023]
Abstract
PURPOSE To assess the involvement of oxidative stress in optic nerves after chronic intake of ethanol in adult rats, when compared to animals fed with an ethanol-free isocaloric diet. METHODS Male Sprague-Dawley rats were used throughout the study. They were fed an ethanol-containing liquid diet, whereas the pair-fed group was given an ethanol-free isocaloric diet. After six weeks of the experiment, optic nerves were extracted and markers of oxidative stress were assayed, i.e., antioxidants such as glutathione and lipid peroxidation products such as malondialdehyde (MDA). RESULTS The GSH content in the optic nerves of ethanol-fed animals was significantly reduced, and the concentration of MDA was significantly higher in this group when compared with the pair-fed group. Time-course of body weight of animals in both groups varied identically throughout the six weeks of the experiment. CONCLUSION The increase in lipid peroxidation products (MDA), together with the decrease in cellular antioxidants (GSH) confirm, in this experimental model, the involvement of oxidative stress in ethanol-induced toxicity of the optic nerves of rats. In view of the body weight time course, the influence of nutritional status on the parameters studied could also be discarded (Arch Soc Esp Oftalmol 2002; 77: 263-268).
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Affiliation(s)
- J Aviñó
- Servicio de Oftalmología, Hospital Universitario La Fe, Valencia, España
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Marín N, Romero B, Bosch-Morell F, Llansola M, Felipo V, Romá J, Romero FJ. Beta-amyloid-induced activation of caspase-3 in primary cultures of rat neurons. Mech Ageing Dev 2000; 119:63-7. [PMID: 11040402 DOI: 10.1016/s0047-6374(00)00172-x] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.2] [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: 11/29/2022]
Abstract
It is known that beta-amyloid peptide (Abeta) contributes to the neurodegeneration in Alzheimer's disease (AD) and operates through activation of an apoptotic pathway. Apoptotic signal is driven by a family of cysteine proteases called caspases. The beta-amyloid precursor protein (APP) is directly and efficiently cleaved by caspases during apoptosis, resulting in elevated beta-amyloid peptide formation. Cerebellar neurons from rat pups were treated with the aged Abeta(25-35) at 1 and 5 microM and fluorescence assays of caspase activity performed over 4 days. We observed an increase in caspase activity after 48 h treatment in both 1 and 5 microM treated cells, then (72-96 h) caspase activity decreased to control values. The data presented support the hypothesis that Abeta(25-35)-induced apoptosis is mediated by the activation of Caspase-3 and that this is a transient effect.
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Affiliation(s)
- N Marín
- Neurophysiology and Neurotoxicology Unit, Department of Physiology, School of Medicine and Dentistry, University of Valencia, Av. Blasco Ibañez 17, E-46010, Valencia, Spain
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Romero FJ, Martínez-Blasco A, Bosch-Morell F, Marín N, Trenor C, Romá J. Glycemic control and not protein kinase C inhibition prevents the early decrease of glutathione peroxidase activity in peripheral nerve of diabetic mice. J Peripher Nerv Syst 2000; 4:265-9. [PMID: 10642094] [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: 02/15/2023]
Abstract
Experimental diabetes promotes changes in biochemical activities of peripheral nervous tissue. Glutathione peroxidase activity decreases in sciatic nerve of diabetic mice very early after onset of experimental diabetes. Effective glycemic control with insulin restores the early lost glutathione peroxidase activity in peripheral nerve of diabetic mice to control values. Data are also presented demonstrating that glutathione peroxidase activity in diabetic mouse peripheral nerve is not modified by the constant delivery of calphostin C, a protein kinase C inhibitor, therefore this decrease seems to be independent on a protein kinase C mediated mechanism. Thus, the early glutathione peroxidase activity decrease in peripheral nerve of diabetic mice is closely related to hyperglycemia, and a tight glycemic control is rather effective in restoring the control levels of this enzymatic activity. The results herein do not rule out the benefits of antioxidant adjuvant therapies in diabetes to help recover the overall decrease in antioxidant defense in peripheral nerve elicited by the decrease of glutathione peroxidase activity.
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Affiliation(s)
- F J Romero
- Department of Physiology, School of Medicine & Dentistry, University of Valencia, Spain.
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Abstract
Inflammation results in the production of free radicals. In a model of experimental uveitis upon subcutaneous injection of endotoxin to Lewis rats, i.e., endotoxin-induced experimental uveitis (EIU), we have evaluated the status of the antioxidant capacity of ocular tissues. EIU results in a decrease of glutathione (GSH) content and glutathione peroxidase (GPx) activity in whole eye homogenates 24-h after endotoxin administration. Furthermore, an increase in malondialdehyde (MDA) content was observed in these same samples, thus confirming the involvement of oxidative stress in the pathophysiology of the process. In view of the ability of the antioxidant ebselen as GPx enzyme mimic, we tested the effect of the oral treatment with two doses of 100 mg/kg body weight of ebselen (first dose administered at the same time of endotoxin, and the second after 12 h). Ebselen administration normalized the GSH and MDA contents and protected the GPx activity of the EIU rat eyes. The GPx activity in the eye homogenate of the treated rats could be completely acounted for by the ebselen-dependent GPx-like activity, i.e., GPx activity measured in the acidic supernatant of the homogenate after neutralization. Unmodified ebselen was detected in whole eye homogenates, thus it shows for the first time the penetration of ebselen through the blood-aqueous and blood-retina barrier. The results herein may allow the proposal of ebselen as a suitable antiinflammatory agent in ocular tissues.
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Affiliation(s)
- F Bosch-Morell
- Department of Physiology, School of Medicine & Dentistry, University of Valencia, Spain
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24
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Abstract
4-Hydroxy-2,3-trans-nonenal, a lipid peroxidation product, inhibits glutathione peroxidase in a concentration-dependent manner. The concentration providing 50% inhibition is 0.12 mM. This inhibition can be almost completely (89%) prevented by 1 mM glutathione added to the incubation mixture 30 min before 4-hydroxy-2,3-trans-nonenal or 2,3-trans-nonenal, but not by other thiol-containing antioxidants such as 0.5 mM dithiothreitol or beta-mercaptoethanol. Again the addition of 1 mM glutathione, and not of 0.5 mM dithiothreitol or beta-mercaptoethanol, to the enzyme 30 min after incubation with 4-hydroxy-2,3-trans-nonenal restores activity to the same extent as does the preincubation with GSH. In view of the known reactivity of 4-hydroxy-2,3-trans-nonenal with lysine residues and the reversibility of the inhibition, the involvement of a lysine residue in GSH binding to glutathione peroxidase is proposed. The potential relevance of the inhibition of glutathione peroxidase by 4-hydroxy-nonenal to oxidative tissue damage is discussed with particular emphasis on neurological disorders.
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Affiliation(s)
- F Bosch-Morell
- Department of Physiology, School of Medicine & Dentistry, University of Valencia, Spain
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Romero FJ, Bosch-Morell F, Romero MJ, Jareño EJ, Romero B, Marín N, Romá J. Lipid peroxidation products and antioxidants in human disease. Environ Health Perspect 1998; 106 Suppl 5:1229-34. [PMID: 9788902 PMCID: PMC1533372 DOI: 10.1289/ehp.98106s51229] [Citation(s) in RCA: 161] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Lipid peroxidation (LPO) is a free radical-related process that in biologic systems may occur under enzymatic control, e.g., for the generation of lipid-derived inflammatory mediators, or nonenzymatically. This latter form is associated mostly with cellular damage as a result of oxidative stress, which also involves cellular antioxidants in this process. This article focuses on the relevance of two LPO products, malondialdehyde (MDA) and 4-hydroxynonenal (HNE), to the pathophysiology of human disease. The former has been studied in human serum samples of hepatitis C virus-infected adults and human immunodeficiency virus-infected children. In these two cases it is shown that the specific assay of serum MDA is useful for the clinical management of these patients. The presence of MDA in subretinal fluid of patients with retinal detachment suggests the involvement of oxidative stress in this process. Moreover, we were able to report the dependence of this involvement on the degree of myopia in these patients. The assay of MDA contents in the peripheral nerves of rats fed a chronic alcohol-containing diet or diabetic mice also confirms the pathophysiologic role of oxidative stress in these experimental models. In these two cases, associated with an increase in tissue LPO products content, we detected a decrease of glutathione peroxidase (GSHPx) activity in peripheral nerve, among other modifications. We have demonstrated that in vitro HNE is able to inhibit GSHPx activity in an apparent competitive manner, and that glutathione may partially protect and/or prevent this inactivation. The accumulation of LPO products in the brain of patients with Alzheimer's disease has also been described, and it is on the basis of this observation that we have tried to elucidate the role of oxidative stress and cellular antioxidants in beta-amyloid-induced apoptotic cell death of rat embryo neurons. Finally, we discuss the possible role of the observed vascular effects of HNE on human arteries.
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Affiliation(s)
- F J Romero
- Department of Physiology, School of Medicine and Dentistry, University of Valencia, Spain.
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Cortijo J, Pons R, Dasí F, Marín N, Martinez-Losa M, Advenier C, Morcillo EJ. Bronchodilator and anti-inflammatory activities of SCA40: studies in human isolated bronchus, human eosinophils, and in the guinea-pig in vivo. Naunyn Schmiedebergs Arch Pharmacol 1997; 356:806-14. [PMID: 9453467 DOI: 10.1007/pl00005121] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
There is currently interest in the use of inhibitors of cyclic nucleotide phosphodiesterases (PDE) as potential anti-asthma agents. In this study we examined the effects of SCA40 (6-bromo-8-methylaminoimidazol-[1,2-a] pyrazine-2-carbonitrile), a preferential inhibitor of PDE 3 also endowed with PDE 4 and 5 inhibitory activities, on isolated bronchus and eosinophil functions and in an animal model of asthma. SCA40 (1 nM-0.1 mM) produced concentration-dependent inhibition of spontaneous and stimulated tone of human isolated bronchus and reached a maximal relaxation similar to that of theophylline (3 mM). The potency (-log EC50 values) of SCA40 against spontaneous tone (6.52 +/- 0.10) was greater than against tone raised by equieffective concentrations (approximately 70%) of histamine (5.76 +/- 0.06), leukotriene C4 (5.44 +/- 0.11), and acetylcholine (4.98 +/- 0.09). In the presence of cytochalasin B, the chemotactic peptide N-formyl-L-methionyl-L-leucyl-L-phenylalanine (FMLP; 0.5 microM) induced leukotriene C4 production in human eosinophils isolated in discontinuous metrizamide gradients. The production of leukotriene C4 was inhibited by SCA40 in a concentration-related fashion (-log IC50 = 6.04 +/- 0.20; n = 6). Rolipram, a selective PDE 4 inhibitor, was also effective (-log IC50 = 7.29 +/- 0.32) but the selective PDE 3 inhibitor SKF94120 was scarcely effective (< 10% inhibition for 10 microM). In ovalbumin sensitized guinea-pigs, SCA40 (1 mg kg(-1), i.p.) given 30 min before antigen challenge significantly inhibited the acute bronchoconstriction produced by aerosol antigen (5 mg ml(-1), 30 s) (antigen response was 185 +/- 13 and 91 +/- 21 cmH2O l(-1) s(-1) in control and SCA40-treated animals, respectively, P < 0.05). Pretreatment with SCA40 (1 mg kg(-1), i.p., 30 min pre- and 3 h post-antigen exposure) prevented airway hyperreactivity to histamine which developed 24 h after exposure of conscious guinea-pigs to aerosol antigen. Eosinophil lung accumulation that accompanied airway hyperreactivity was also inhibited by SCA40 (from 6.15 +/- 0.86 in control to 1.27 +/- 0.27 in treated animals; expressed as eosinophils x 10(6); P < 0.05). SCA40 (1 mg kg(-1), i.p.) also inhibited the microvascular leakage produced after inhaled antigen (5 mg ml(-1), 30 s) at all airway levels. The haemodynamic effects of SCA40 (1 mg kg(-1), i.p.) consisted of a rapid decrease (peak at 5 min) in mean arterial blood pressure (-39.4 +/- 2.4%) and tracheal mucosal blood flow (-13.5 +/- 2.0%) that slowly recovered with time. These data support previous work showing that PDE inhibition results in antispasmogenic and anti-inflammatory effects. SCA40 was effective in vitro and in vivo and these effects are probably related to its activity as a mixed PDE inhibitor.
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Affiliation(s)
- J Cortijo
- Departamento de Farmacologìa, Facultad de Medicina y Odontologìa, Universitat de València, Spain
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Marín N, Caba A, Ortiz B, Pérez-Tornero E, Martínez L, López M, Fornieles H, Delgado-Rodríguez M. [Socioeconomic determinants and utilization of emergency hospital services]. Med Clin (Barc) 1997; 108:726-9. [PMID: 9324595] [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: 02/05/2023]
Abstract
BACKGROUND Socioeconomic level is a key determinant for health status. It may also influence on the utilization of hospital emergency services, although the factor responsible for that is not known. The main objective of the present report is to assess whether patients using frequently hospital emergency services have one or more variables related to low socioeconomic level. PATIENTS AND METHODS A standardized questionnaire was applied to 800 patients randomly selected from those attending the emergency services of a provincial reference hospital. It was gathered information on: income, education level, employment, loneliness, domestic violence, occupational accidents, and life style. Odds ratios (OR) and their 95% confidence intervals (CI) were estimated. Stepwise logistic regression analysis was used to ascertain the independent predictors for attending for than once to the emergency services. RESULTS In crude analysis, low income and low educational level were significantly related to the use of emergency services (both chi 2 for a trend < 0.05). Alcoholism (OR = 2.3, 95% CI = 1.2-4.7) and domestic violence (OR = 2.6, 95% CI = 0.9-8.1) were also related. Stepwise logistic regression analysis selected income (OR for intermediate level = 1.6, 95% CI = 1.0-2.7, and OR for low level = 2.3, 95% CI = 1.4-3.7) and alcoholism (OR = 2.9, 95% CI = 1.3-6.4) as independent predictors. CONCLUSIONS Patients with low income and/or alcoholism use emergency hospital services more frequently.
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Affiliation(s)
- N Marín
- Servicio de Medicina Interna, Hospital Torrecárdenas, Universidad de Cantabria
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Blanquer JJ, Ortolà P, Rodríguez JJ, Marín N, Mulet MJ. [An epidemiological analysis of insomnia at a primary care center]. Aten Primaria 1994; 14:609-14. [PMID: 8068826] [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: 01/28/2023] Open
Abstract
OBJECTIVE To evaluate the real problems of insomnia, analysing its prevalence and its characteristic presentation, within the clinics using an appointment system at a Primary Care Centre. DESIGN Observation study of a crossover type, by means of a personal interview. SETTING Primary Care context. PATIENTS The survey was on the basis of a sample population calculated for qualitative variables (N = 470; a = 0.05; p = 0.50; i = 0.05). A total of 490 patients, taken from the appointment lists of on-demand clinics by means of systematic sampling (K = 4), were studied. MEASUREMENTS AND RESULTS The reply index was 100%. Out of a sample study population of 490, 278 patients with insomnia were recorded. 65.83% had proximal insomnia (difficulty in getting to sleep); 49.28%, interrupted sleep (intermittent insomnia); and 16.5% of cases, late insomnia (premature waking). Insomnia was persistent in 69.1% of cases and transitory in 30.9%. Regarding the aetiological factors linked to insomnia, non-organic mental disorder (64.29%); known organic Pathology (25%). CONCLUSIONS 57% (CI 0.53 divided by 0.61) of the population under study had suffered insomnia at some time. 61.9% of these were suffering it at the time of the survey; and only 44% of these sought medical advice for the problem. We found that a significant relationship existed between suffering insomnia and age, civil status and socio-economic level. It is important to manage and have sufficient knowledge of insomnia, as it is a common health problem in Primary Care.
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Casal M, Linares MJ, Marín N. [Resistance to pyrazinamide in tuberculosis patients]. Enferm Infecc Microbiol Clin 1991; 9:188. [PMID: 1907498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Salom MG, Salazar FJ, Fenoy FJ, Pinilla JM, Marín N, Quesada T. Hemodynamic effects of long-term converting-enzyme inhibition in renal hypertensive rats. Rev Esp Fisiol 1990; 46:171-6. [PMID: 2274701] [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: 12/31/2022]
Abstract
The hemodynamic effects of a converting-enzyme inhibitor (CEI) given during 12 consecutive hours were studied in severe chronic renal hypertensive and normotensive Wistar rats. Hemodynamic parameters were obtained by thermodilution method in conscious unrestrained animals twenty-four hours after surgery. A bolus of CEI induced a significant decrease of mean arterial pressure (MAP) (from 192.2 +/- 8.2 to 163.3 +/- 5.9 mmHg, p less than 0.001) and total peripheral resistance (TPR) (from 7.69 +/- 0.53 to 5.83 +/- 0.33 mmHg.min/ml 100 g) in hypertensive animals. Cardiac index (CI) and heart rate increased significantly (p less than 0.05). Infusion of CEI to hypertensive animals during 12 consecutive hours produced a further progressive decrease in MAP and TPR (p less than 0.05) and an increase in CI (p less than 0.05). Heart rate did not change. Acute and prolonged infusions of CEI to normotensive group induced less but similar effect to those observed in hypertensive group. These results suggest that an increase of the renin-angiotensin system activity is the principal mechanism involved in the maintenance of high blood pressure during chronic phase of renal hypertension on the rats.
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Affiliation(s)
- M G Salom
- Departamento de Fisiología, Facultad de Medicina, Murcia, Spain
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