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Nin-Valencia A, Domínguez-Ortega J, Cabañas R, Sánchez H, Fiandor A, Lluch M, Ramírez E, Gómez-Traseira C, Rodríguez A, González-Muñoz M. The Lymphocyte Transformation Test in Delayed Hypersensitivity Reactions Induced by Ibuprofen and/or Metamizole. J Investig Allergol Clin Immunol 2023; 33:52-53. [PMID: 35416155 DOI: 10.18176/jiaci.0814] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- A Nin-Valencia
- Department of Allergy, Hospital Universitario La Paz, Madrid, Spain
| | - J Domínguez-Ortega
- Department of Allergy, Hospital Universitario La Paz, Madrid, Spain.,Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain.,PIELenRed Consortium
| | - R Cabañas
- Department of Allergy, Hospital Universitario La Paz, Madrid, Spain.,Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain.,PIELenRed Consortium
| | - H Sánchez
- Department of Allergy, Hospital Universitario La Paz, Madrid, Spain
| | - A Fiandor
- Department of Allergy, Hospital Universitario La Paz, Madrid, Spain.,Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain.,PIELenRed Consortium
| | - M Lluch
- Department of Allergy, Hospital Universitario La Paz, Madrid, Spain.,Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain
| | - E Ramírez
- Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain.,PIELenRed Consortium.,Department of Clinical Pharmacology, University Hospital La Paz, Madrid, Spain
| | - C Gómez-Traseira
- Department of Allergy, Hospital Universitario La Paz, Madrid, Spain.,Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain.,PIELenRed Consortium
| | - A Rodríguez
- Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain.,Department of Clinical Pharmacology, University Hospital La Paz, Madrid, Spain
| | - M González-Muñoz
- Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain.,Department of Immunology, Hospital Universitario La Paz, Madrid, Spain
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Vílchez-Sánchez F, Busto Leis JM, Sendagorta E, Ramírez E, Fiandor A, Bellón T, De Soto Álvarez T, Sánchez Ocando H, Heredia Revuelto R, Cabañas R. Allopurinol induced - DRESS and neo-sensitization to thalidomide: complex management and diagnosis in a patient with multiple myeloma. J Investig Allergol Clin Immunol 2022; 32:406-407. [PMID: 35029153 DOI: 10.18176/jiaci.0776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- F Vílchez-Sánchez
- Institute for Health Research (IdiPAZ), Madrid, Spain.,Allergy Department, La Paz University Hospital, Madrid, Spain
| | - J M Busto Leis
- Dermatology Department, La Paz University Hospital, Madrid, Spain
| | - E Sendagorta
- Dermatology Department, La Paz University Hospital, Madrid, Spain.,PIELenRed Consortium
| | - E Ramírez
- Institute for Health Research (IdiPAZ), Madrid, Spain.,PIELenRed Consortium.,Pharmacology Department La Paz University Hospital, Madrid, Spain
| | - A Fiandor
- Institute for Health Research (IdiPAZ), Madrid, Spain.,Allergy Department, La Paz University Hospital, Madrid, Spain.,PIELenRed Consortium
| | - T Bellón
- Institute for Health Research (IdiPAZ), Madrid, Spain.,PIELenRed Consortium.,Drug Hypersensitivity Laboratory, IdiPAZ, Madrid, Spain
| | | | | | | | - R Cabañas
- Institute for Health Research (IdiPAZ), Madrid, Spain.,Allergy Department, La Paz University Hospital, Madrid, Spain.,PIELenRed Consortium.,Centro de Investigación en Red de Enfermedades Raras (CIBERER, U754)
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3
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Flores B, Ramírez E, Moncada A, Salinas N, Fischer R, Hernández C, Mora-Sánchez B, Sheleby-Elías J, Jirón W, Balcázar JL. Antimicrobial effect of Moringa oleifera seed powder against Vibrio cholerae isolated from the rearing water of shrimp (Penaeus vannamei) postlarvae. Lett Appl Microbiol 2021; 74:238-246. [PMID: 34806784 DOI: 10.1111/lam.13604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 10/01/2021] [Accepted: 11/02/2021] [Indexed: 11/29/2022]
Abstract
Shrimp farming has experienced rising costs as a result of disease outbreaks associated with Vibrio spp. Suitable strategies for disease prevention and control are therefore urgently needed. This study aimed to evaluate the antimicrobial effect of Moringa oleifera seed powder against Vibrio cholerae in the rearing water of Pacific white shrimp (Penaeus vannamei) postlarvae. In vitro assays included the determination of minimum inhibitory concentration (MIC) of M. oleifera seed powder against V. cholerae, whereas in vivo assays included the effect of M. oleifera seed powder on bacterial load and water quality parameters in the rearing tanks, as well as its effect on shrimp postlarvae survival. M. oleifera seed powder inhibited the growth of V. cholerae with MIC values of 62·5 µg ml-1 . Moreover, seawater pH of treated tanks (8·66) was significantly lower (P < 0·01) than pH of the control tanks (9·02), whereas the visibility of treated tanks (37·08 cm) was significantly higher (P < 0·01) as compared to control tanks (35·37 cm). Likewise, V. cholerae load was significantly reduced (P < 0·01) from 4·7 × 104 to 3·1 × 103 CFU per ml in tanks treated with M. oleifera seed powder. Altogether, this study demonstrates the antimicrobial activity of M. oleifera against V. cholerae in shrimp culture.
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Affiliation(s)
- B Flores
- Centro Veterinario de Diagnóstico e Investigación (CEVEDI), Departamento de Veterinaria y Zootecnia, Escuela de Ciencias Agrarias y Veterinarias, Universidad Nacional Autónoma de Nicaragua-León (UNAN-León), León, Nicaragua
| | - E Ramírez
- Departamento Acuícola, Escuela de Ciencias Agrarias y Veterinarias, Universidad Nacional Autónoma de Nicaragua-León (UNAN-León), León, Nicaragua
| | - A Moncada
- Departamento Acuícola, Escuela de Ciencias Agrarias y Veterinarias, Universidad Nacional Autónoma de Nicaragua-León (UNAN-León), León, Nicaragua
| | - N Salinas
- Departamento Acuícola, Escuela de Ciencias Agrarias y Veterinarias, Universidad Nacional Autónoma de Nicaragua-León (UNAN-León), León, Nicaragua
| | - R Fischer
- Department of Epidemiology and Biostatistics, Texas A & M University Health Science Center, College Station, TX, USA
| | - C Hernández
- Departamento Acuícola, Escuela de Ciencias Agrarias y Veterinarias, Universidad Nacional Autónoma de Nicaragua-León (UNAN-León), León, Nicaragua
| | - B Mora-Sánchez
- Centro Veterinario de Diagnóstico e Investigación (CEVEDI), Departamento de Veterinaria y Zootecnia, Escuela de Ciencias Agrarias y Veterinarias, Universidad Nacional Autónoma de Nicaragua-León (UNAN-León), León, Nicaragua.,Department of Animal Pathology, Faculty of Veterinary Sciences, Universidad de Zaragoza, Zaragoza, Spain
| | - J Sheleby-Elías
- Centro Veterinario de Diagnóstico e Investigación (CEVEDI), Departamento de Veterinaria y Zootecnia, Escuela de Ciencias Agrarias y Veterinarias, Universidad Nacional Autónoma de Nicaragua-León (UNAN-León), León, Nicaragua
| | - W Jirón
- Centro Veterinario de Diagnóstico e Investigación (CEVEDI), Departamento de Veterinaria y Zootecnia, Escuela de Ciencias Agrarias y Veterinarias, Universidad Nacional Autónoma de Nicaragua-León (UNAN-León), León, Nicaragua
| | - J L Balcázar
- Catalan Institute for Water Research (ICRA), Girona, Spain
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4
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Ramírez E, Vives Lara E, A V, Rodríguez-Gómez F. Proposal for technological adaptation of small-sized green olives to Spanish-STYLE processing. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108067] [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: 10/22/2022]
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5
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Cabañas R, Ramírez E, Sendagorta E, Alamar R, Barranco R, Blanca-López N, Doña I, Fernández J, Garcia-Nunez I, García-Samaniego J, Lopez-Rico R, Marín-Serrano E, Mérida C, Moya M, Ortega-Rodríguez NR, Rivas Becerra B, Rojas-Perez-Ezquerra P, Sánchez- González MJ, Vega-Cabrera C, Vila-Albelda C, Bellón T. Spanish Guidelines for Diagnosis, Management, Treatment, and Prevention of DRESS Syndrome. J Investig Allergol Clin Immunol 2020; 30:229-253. [DOI: 10.18176/jiaci.0480] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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6
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Eichau S, López Ruiz R, Castón Osorio J, Ramírez E, Domínguez-Mayoral A, Izquierdo G. Primary cytomegalovirus infection in a patient with relapsing-remitting multiple sclerosis under treatment with alemtuzumab. Neurología (English Edition) 2020. [DOI: 10.1016/j.nrleng.2018.03.024] [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: 10/24/2022] Open
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7
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de la Fuente V, Rufo L, Rodríguez N, Ramírez E, Sánchez-Gavilán I, Amils R. Differential iron management in monocotyledon and dicotyledon plants from the Río Tinto basin. Protoplasma 2020; 257:889-900. [PMID: 31909435 DOI: 10.1007/s00709-019-01476-x] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
The study of plants adapted to an extreme environment with a high concentration of iron such as Río Tinto allowed the study of important elements for the development and control of plant growth including their localization, management, and storage. The absorption, transport, and accumulation of iron were studied in different species of dicotyledons (Sarcocornia pruinosa, Salicornia patula, Arthrocnemum macrostachyum, and Halogeton sativus of the Chenopodiaceae family) and monocotyledons (Imperata cylindrica, Cynodon dactylon, and Panicum repens from the Poaceae family), all obtained from the Río Tinto banks in different sample collection campaigns. The results clearly show that phytoferritin is not observed in the chloroplast of monocotyledons, an important difference from what is observed in dicotyledons. The presence of plastids with a high concentration of iron in the sieve tubes of monocotyledons strongly suggests their possible role in the transport and accumulation of iron in these plants.
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Affiliation(s)
- V de la Fuente
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, E28049, Madrid, Spain.
| | - L Rufo
- Instituto de Investigaciones Biosanitarias, Facultad de Ciencias Experimentales, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
| | - N Rodríguez
- Centro de Astrobiología, INTA-CSIC, Torrejón de Ardoz, Madrid, Spain
| | - E Ramírez
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, E28049, Madrid, Spain
| | - I Sánchez-Gavilán
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, E28049, Madrid, Spain
| | - R Amils
- Centro de Biología Molecular Severo Ochoa (UAM-CSIC), Universidad Autónoma de Madrid, Cantoblanco, Madrid, Spain
- Centro de Astrobiología, INTA-CSIC, Torrejón de Ardoz, Madrid, Spain
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8
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Chaparro M, Garre A, Guerra Veloz MF, Vázquez Morón JM, De Castro ML, Leo E, Rodriguez E, Carbajo AY, Riestra S, Jiménez I, Calvet X, Bujanda L, Rivero M, Gomollón F, Benítez JM, Bermejo F, Alcaide N, Gutiérrez A, Mañosa M, Iborra M, Lorente R, Rojas-Feria M, Barreiro-de Acosta M, Kolle L, Van Domselaar M, Amo V, Argüelles F, Ramírez E, Morell A, Bernardo D, Gisbert JP. Effectiveness and Safety of the Switch from Remicade® to CT-P13 in Patients with Inflammatory Bowel Disease. J Crohns Colitis 2019; 13:1380-1386. [PMID: 30976785 DOI: 10.1093/ecco-jcc/jjz070] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS To evaluate the clinical outcomes in patients with IBD after switching from Remicade® to CT-P13 in comparison with patients who maintain Remicade®. METHODS Patients under Remicade® who were in clinical remission with standard dosage at study entry were included. The 'switch cohort' [SC] comprised patients who made the switch from Remicade® to CT-P13, and the 'non-switch' cohort [NC] patients remained under Remicade®. RESULTS A total of 476 patients were included: 199 [42%] in the SC and 277 [58%] in the NC. The median follow-up was 18 months in the SC and 23 months in the NC [p < 0.01]. Twenty-four out of 277 patients relapsed in the NC; the incidence of relapse was 5% per patient-year. The cumulative incidence of relapse was 2% at 6 months and 10% at 24 months in this group. Thirty-eight out of 199 patients relapsed in the SC; the incidence rate of relapse was 14% per patient-year. The cumulative incidence of relapse was 5% at 6 months and 28% at 24 months. In the multivariate analysis, the switch to CT-P13 was associated with a higher risk of relapse (HR = 3.5, 95% confidence interval [CI] = 2-6). Thirteen percent of patients had adverse events in the NC, compared with 6% in the SC [p < 0.05]. CONCLUSIONS Switching from Remicade® to CT-P13 might be associated with a higher risk of clinical relapse, although this fact was not supported in our study by an increase in objective markers of inflammation. The nocebo effect might have influenced this result. Switching from Remicade® to CT-P13 was safe.
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Affiliation(s)
- M Chaparro
- Gastroenterology Units from Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa [IIS-IP] and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd], Madrid, Spain
| | - A Garre
- Gastroenterology Units from Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa [IIS-IP] and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd], Madrid, Spain
| | - M F Guerra Veloz
- Gastroenterology Units from Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - J M Vázquez Morón
- Gastroenterology Units from Hospital Juan Ramón Jiménez, Huelva, Spain
| | - M L De Castro
- Gastroenterology Units from Complejo Hospitalario Universitario de Vigo, Vigo, Spain
| | - E Leo
- Gastroenterology Units from Hospital Universitario Virgen del Rocío, Sevilla, Spain
| | - E Rodriguez
- Gastroenterology Units from Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - A Y Carbajo
- Gastroenterology Units from Hospital Universitario Río Hortega, Valladolid, Spain
| | - S Riestra
- Gastroenterology Units from Hospital Universitario Central de Asturias and ISPA, Asturias, Spain
| | - I Jiménez
- Gastroenterology Units from Hospital de Galdakao-Usansolo, Vizcaya, Spain
| | - X Calvet
- Gastroenterology Units from Consorcí Corporació Sanitària Parc Tauli de Sabadell and CIBERehd, Barcelona, Spain
| | - L Bujanda
- Gastroenterology Units from Instituto Biodonostia, Universidad del País Vasco [UPV/EHU] and CIBERehd, San Sebastián, Spain
| | - M Rivero
- Gastroenterology Units from Hospital Universitario Marqués de Valdecilla and IDIVAL, Santander, Spain
| | - F Gomollón
- Gastroenterology Units from Hospital Clínico Universitario Lozano Blesa, IIS Aragón and CIBERehd, Zaragoza, Spain
| | - J M Benítez
- Gastroenterology Units from Hospital Universitario Reina Sofía, Córdoba, Spain
| | - F Bermejo
- Gastroenterology Units from Hospital Universitario de Fuenlabrada and Instituto de Investigación Sanitaria del Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - N Alcaide
- Gastroenterology Units from Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - A Gutiérrez
- Gastroenterology Units from Hospital General Universitario de Alicante and CIBERehd, Alicante, Spain
| | - M Mañosa
- Gastroenterology Units from Hospital Germans Trials i Pujol and CIBERehd, Barcelona, Spain
| | - M Iborra
- Gastroenterology Units from Hospital Universitario y Politécnico de La Fe and CIBERehd, Valencia, Spain
| | - R Lorente
- Gastroenterology Units from Hospital General Universitario de Ciudad Real, Ciudad Real, Spain
| | - M Rojas-Feria
- Gastroenterology Units from Hospital Universitario Nuestra Señora de Valme, Sevilla, Spain
| | - M Barreiro-de Acosta
- Gastroenterology Units from Hospital Clínico Universitario de Santiago, Santiago de Compostela, Spain
| | - L Kolle
- Gastroenterology Units from Hospital General de La Palma, La Palma, Spain
| | - M Van Domselaar
- Gastroenterology Units from Hospital Universitario de Torrejón, Madrid, Spain
| | - V Amo
- Gastroenterology Units from Hospital Regional Universitario de Málaga, Málaga, Spain
| | - F Argüelles
- Gastroenterology Units from Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - E Ramírez
- Gastroenterology Units from Pharmacy Unit, Hospital Universitario de La Princesa, IIS-IP, Madrid, Spain
| | - A Morell
- Gastroenterology Units from Pharmacy Unit, Hospital Universitario de La Princesa, IIS-IP, Madrid, Spain
| | - D Bernardo
- Gastroenterology Units from Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa [IIS-IP] and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd], Madrid, Spain
| | - J P Gisbert
- Gastroenterology Units from Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa [IIS-IP] and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd], Madrid, Spain
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9
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Eichau S, López Ruiz R, Castón Osorio JJ, Ramírez E, Domínguez-Mayoral A, Izquierdo G. Primary cytomegalovirus infection in a patient with relapsing-remitting multiple sclerosis under treatment with alemtuzumab. Neurologia 2018; 35:440-443. [PMID: 29907474 DOI: 10.1016/j.nrl.2018.03.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 01/28/2018] [Accepted: 03/01/2018] [Indexed: 11/15/2022] Open
Affiliation(s)
- S Eichau
- Servicio de Neurología, Unidad de Esclerosis Múltiple, Hospital Universitario Virgen Macarena, Sevilla, España
| | - R López Ruiz
- Servicio de Neurología, Unidad de Esclerosis Múltiple, Hospital Universitario Virgen Macarena, Sevilla, España.
| | - J J Castón Osorio
- Servicio de Enfermedades Infecciosas, Hospital Universitario Reina Sofía, Córdoba, España
| | - E Ramírez
- Servicio de Microbiología, Hospital Universitario Virgen Macarena, Sevilla, España
| | - A Domínguez-Mayoral
- Servicio de Neurología, Unidad de Esclerosis Múltiple, Hospital Universitario Virgen Macarena, Sevilla, España
| | - G Izquierdo
- Servicio de Neurología, Unidad de Esclerosis Múltiple, Hospital Universitario Virgen Macarena, Sevilla, España
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Ramírez E. Laboratorio: Reconocimiento de los elementos del embrión de pollo y su empleo en virología. Actual Biol 2018. [DOI: 10.17533/udea.acbi.330497] [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] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
El embrión de pollo es uno de los medios de cultivo más favorables para el aislamiento de algunos virus. Los huevos embrionados pueden ser inoculados por varias vías y su elección depende del virus que se quiera estudiar.
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11
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Cabañas R, Calderón O, Ramírez E, Fiandor A, Caballero T, Heredia R, Herranz P, Madero R, Quirce S, Bellón T. Sensitivity and specificity of the lymphocyte transformation test in drug reaction with eosinophilia and systemic symptoms causality assessment. Clin Exp Allergy 2018; 48:325-333. [DOI: 10.1111/cea.13076] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/26/2017] [Accepted: 10/24/2017] [Indexed: 12/17/2022]
Affiliation(s)
- R. Cabañas
- Department of Allergy; La Paz University Hospital Health Research Institute (IdiPAZ); Madrid Spain
- PIELenRed Consortium; Madrid Spain
| | - O. Calderón
- Department of Allergy; La Paz University Hospital Health Research Institute (IdiPAZ); Madrid Spain
| | - E. Ramírez
- PIELenRed Consortium; Madrid Spain
- Department of Clinical Pharmacology; School of Medicine; La Paz University Hospital Health Research Institute (IdiPAZ); Autonomous University of Madrid; Madrid Spain
| | - A. Fiandor
- Department of Allergy; La Paz University Hospital Health Research Institute (IdiPAZ); Madrid Spain
- PIELenRed Consortium; Madrid Spain
| | - T. Caballero
- Department of Allergy; La Paz University Hospital Health Research Institute (IdiPAZ); Madrid Spain
| | - R. Heredia
- Department of Allergy; La Paz University Hospital Health Research Institute (IdiPAZ); Madrid Spain
| | - P. Herranz
- PIELenRed Consortium; Madrid Spain
- Department of Dermatology; La Paz University Hospital Health Research Institute (IdiPAZ); Madrid Spain
| | - R. Madero
- Department of Statistics; La Paz University Hospital Health Research Institute (IdiPAZ); Madrid Spain
| | - S. Quirce
- Department of Allergy; La Paz University Hospital Health Research Institute (IdiPAZ); Madrid Spain
| | - T. Bellón
- PIELenRed Consortium; Madrid Spain
- La Paz University Hospital Health Research Institute (IdiPAZ); Madrid Spain
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12
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Ramírez E, Picatoste B, González-Bris A, Oteo M, Cruz F, Caro-Vadillo A, Egido J, Tuñón J, Morcillo MA, Lorenzo Ó. Sitagliptin improved glucose assimilation in detriment of fatty-acid utilization in experimental type-II diabetes: role of GLP-1 isoforms in Glut4 receptor trafficking. Cardiovasc Diabetol 2018; 17:12. [PMID: 29325553 PMCID: PMC5765634 DOI: 10.1186/s12933-017-0643-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 12/12/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The distribution of glucose and fatty-acid transporters in the heart is crucial for energy consecution and myocardial function. In this sense, the glucagon-like peptide-1 (GLP-1) enhancer, sitagliptin, improves glucose homeostasis but it could also trigger direct cardioprotective actions, including regulation of energy substrate utilization. METHODS Type-II diabetic GK (Goto-Kakizaki), sitagliptin-treated GK (10 mg/kg/day) and wistar rats (n = 10, each) underwent echocardiographic evaluation, and positron emission tomography scanning for [18F]-2-fluoro-2-deoxy-D-glucose (18FDG). Hearts and plasma were isolated for biochemical approaches. Cultured cardiomyocytes were examined for receptor distribution after incretin stimulation in high fatty acid or high glucose media. RESULTS Untreated GK rats exhibited hyperglycemia, hyperlipidemia, insulin resistance, and plasma GLP-1 reduction. Moreover, GK myocardium decreased 18FDG assimilation and diastolic dysfunction. However, sitagliptin improved hyperglycemia, insulin resistance, and GLP-1 levels, and additionally, enhanced 18FDG uptake and diastolic function. Sitagliptin also stimulated the sarcolemmal translocation of the glucose transporter-4 (Glut4), in detriment of the fatty acyl translocase (FAT)/CD36. In fact, Glut4 mRNA expression and sarcolemmal translocation were also increased after GLP-1 stimulation in high-fatty acid incubated cardiomyocytes. PI3K/Akt and AMPKα were involved in this response. Intriguingly, the GLP-1 degradation metabolite, GLP-1(9-36), showed similar effects. CONCLUSIONS Besides of its anti-hyperglycemic effect, sitagliptin-enhanced GLP-1 may ameliorate diastolic dysfunction in type-II diabetes by shifting fatty acid to glucose utilization in the cardiomyocyte, and thus, improving cardiac efficiency and reducing lipolysis.
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Affiliation(s)
- E Ramírez
- Renal, Vascular and Diabetes Laboratory, Instituto de Investigaciones Sanitarias-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma, Av. Reyes Católicos 2, 28040, Madrid, Spain
| | - B Picatoste
- Renal, Vascular and Diabetes Laboratory, Instituto de Investigaciones Sanitarias-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma, Av. Reyes Católicos 2, 28040, Madrid, Spain
| | - A González-Bris
- Renal, Vascular and Diabetes Laboratory, Instituto de Investigaciones Sanitarias-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma, Av. Reyes Católicos 2, 28040, Madrid, Spain
| | - M Oteo
- Biomedical Applications of Radioisotopes and Pharmacokinetics, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - F Cruz
- Biomedical Applications of Radioisotopes and Pharmacokinetics, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - A Caro-Vadillo
- Veterinary School, Universidad Complutense, Madrid, Spain
| | - J Egido
- Renal, Vascular and Diabetes Laboratory, Instituto de Investigaciones Sanitarias-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma, Av. Reyes Católicos 2, 28040, Madrid, Spain.,Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM) Network, Madrid, Spain
| | - J Tuñón
- Department of Cardiology, Hospital Fundación Jiménez Díaz, Madrid, Spain
| | - M A Morcillo
- Biomedical Applications of Radioisotopes and Pharmacokinetics, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - Ó Lorenzo
- Renal, Vascular and Diabetes Laboratory, Instituto de Investigaciones Sanitarias-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma, Av. Reyes Católicos 2, 28040, Madrid, Spain. .,Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM) Network, Madrid, Spain.
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Delibes-Mateos M, Castro F, Piorno V, Ramírez E, Blanco-Aguiar JA, Aparicio F, Mínguez LE, Ferreira CC, Rouco C, Ríos-Saldaña CA, Recuerda P, Villafuerte R. First assessment of the potential introduction by hunters of eastern cottontail rabbits (Sylvilagus floridanus) in Spain. Wildl Res 2018. [DOI: 10.1071/wr17185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Context
Humans have introduced lagomorph species in areas outside their native ranges for their meat, fur or value as game species. Assessing the rate of success of lagomorph introductions is vital to address the ecological damage they may cause. Cases of failed lagomorph introductions in apparently suitable areas may also shed light on mechanisms that may deter invasion, which are useful in developing strategies for population control. In Spain, it has been suggested that hunters introduced the non-native eastern cottontail (Sylvilagus floridanus) to compensate for the recent drastic declines of the native European rabbit (Oryctolagus cuniculus).
Aims
Our main goals were to investigate (1) whether Sylvilagus rabbits have indeed been introduced by hunters across Spain, and (2) whether the species has become established in Spanish ecosystems.
Methods
We interviewed 311 hunters or naturalists across Spain. The questionnaires inquired about the characteristics of game management in each locality, including the frequency of rabbit restocking, and particularly whether Sylvilagus rabbits had been released in the surveyed localities. In addition, we sampled 192 rabbit populations (n=3974 individuals) across Spain by using molecular analysis to determine whether Sylvilagus rabbits were present in these areas.
Key results
Our interview results suggest that Sylvilagus rabbits may have been released in 6% of the 311 localities surveyed. However, molecular analyses failed to confirm their persistence, because all samples belonged to O. cuniculus.
Conclusions
We infer that Sylvilagus rabbits failed to establish themselves in Spain, although interviewees reported their introduction. Several reasons may explain the unsuccessful establishment of this species, such as a low propagule pressure, competition with native species, predation, inability to cope with local pathogens and unsuitable climatic conditions.
Implications
The risk of future introductions of non-native game species can be reduced through the implementation of stricter regulations of animal releases into the wild. Long-term monitoring networks should be developed to help identify non-native game species before they become established and spread to neighbouring areas, thereby preventing any ecological or economic impacts these species may cause.
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Soto R, Fité C, Ramírez E, Iborra M, Tejero J. Catalytic activity dependence on morphological properties of acidic ion-exchange resins for the simultaneous ETBE and TAEE liquid-phase synthesis. REACT CHEM ENG 2018. [DOI: 10.1039/c7re00177k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Resin acid capacity and specific volume of the swollen polymer are the key properties that determine its catalytic activity.
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Affiliation(s)
- R. Soto
- Faculty of Chemistry
- Chemical Engineering and Analytical Chemistry Department
- University of Barcelona
- 08028-Barcelona
- Spain
| | - C. Fité
- Faculty of Chemistry
- Chemical Engineering and Analytical Chemistry Department
- University of Barcelona
- 08028-Barcelona
- Spain
| | - E. Ramírez
- Faculty of Chemistry
- Chemical Engineering and Analytical Chemistry Department
- University of Barcelona
- 08028-Barcelona
- Spain
| | - M. Iborra
- Faculty of Chemistry
- Chemical Engineering and Analytical Chemistry Department
- University of Barcelona
- 08028-Barcelona
- Spain
| | - J. Tejero
- Faculty of Chemistry
- Chemical Engineering and Analytical Chemistry Department
- University of Barcelona
- 08028-Barcelona
- Spain
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Gil MM, Brik M, Casanova C, Martin-Alonso R, Verdejo M, Ramírez E, Santacruz B. Screening for trisomies 21 and 18 in a Spanish public hospital: from the combined test to the cell-free DNA test. J Matern Fetal Neonatal Med 2016; 30:2476-2482. [PMID: 27806655 DOI: 10.1080/14767058.2016.1253062] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
OBJECTIVE To describe our experience in first-trimester screening for trisomies 21 and 18 firstly by the combined test alone and secondly by cell-free (cf) DNA testing contingent on the results from a previously performed combined test. METHODS Women with singleton pregnancies attending Torrejon University Hospital in Madrid, Spain, from November 2011 to January 2016, were screened for trisomy (T)21 and T18 by the combined test at 11-13 weeks. Before the introduction of cfDNA testing, women at high risk (>1 in 250) were offered invasive testing (IT) and from January 2015 they were offered cfDNA test as well as IT. RESULTS Combined test was performed in 6011 pregnancies. The risk was high in 202 (3.4%) cases. There was complete follow-up for 5507 (91.6%) pregnancies. Detection rate (DR) for T21 was 83.3% (15/18) and 100% (4/4) for T18. Additionally, 2/2 (100%) cases of T13 and 2/2 (100%) cases of triploidy were also detected. False positive rate (FPR) was 3.2% (174/5488). The introduction of this contingent model was followed by a 73% reduction on the IT rate in the high-risk group, from 76.3% to 20.8%. CONCLUSION Contingent screening for trisomies 21 and 18 by cfDNA testing at 11-13 weeks is feasible and has a lower IT rate than combined testing alone.
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Affiliation(s)
- M M Gil
- a Department of Obstetrics and Gynecology , Torrejon University Hospital , Torrejon de Ardoz , Madrid , Spain and
| | - M Brik
- a Department of Obstetrics and Gynecology , Torrejon University Hospital , Torrejon de Ardoz , Madrid , Spain and
| | - C Casanova
- a Department of Obstetrics and Gynecology , Torrejon University Hospital , Torrejon de Ardoz , Madrid , Spain and
| | - R Martin-Alonso
- a Department of Obstetrics and Gynecology , Torrejon University Hospital , Torrejon de Ardoz , Madrid , Spain and
| | - M Verdejo
- a Department of Obstetrics and Gynecology , Torrejon University Hospital , Torrejon de Ardoz , Madrid , Spain and
| | - E Ramírez
- b Clinical Analysis Laboratory of Torrejon University Hospital, Unilabs® , Madrid , Spain
| | - B Santacruz
- a Department of Obstetrics and Gynecology , Torrejon University Hospital , Torrejon de Ardoz , Madrid , Spain and
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16
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González-Ramos J, Noguera-Morel L, Tong HY, Ramírez E, Ruiz-Bravo E, Bellón T, Cabañas R, Cachafeiro L, Herranz-Pinto P. Two cases of overlap severe cutaneous adverse reactions to benznidazole treatment for asymptomatic Chagas disease in a nonendemic country. Br J Dermatol 2016; 175:604-7. [PMID: 26851874 DOI: 10.1111/bjd.14451] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2016] [Indexed: 01/17/2023]
Abstract
Chagas disease is a parasitosis endemic to South America. It is normally treated with benznidazole as first choice, which has been associated with numerous cutaneous reactions. However, very few benznidazole-associated severe cutaneous adverse reactions have been reported to date. The rise of Chagas disease in nonendemic countries represents a growing public health challenge. We report two patients who met the criteria for drug reaction with eosinophilia and systemic symptoms syndrome and Stevens-Johnson syndrome/toxic epidermal necrolysis according to the RegiSCAR scoring systems. They were thus deemed overlapping cases, with a lymphocyte transformation test positive for benznidazole. Both required intensive care unit admission and both survived. Considering the rising application of this drug for trypanosomiasis in immigrant populations, clinicians should be aware of this newly reported, potentially life-threatening risk.
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Affiliation(s)
- J González-Ramos
- Department of Dermatology, La Paz University Hospital, Researching Consortium PIELenRed, Paseo La Castellana 261, CP 28046, Madrid, Spain.
| | - L Noguera-Morel
- Department of Dermatology, La Paz University Hospital, Researching Consortium PIELenRed, Paseo La Castellana 261, CP 28046, Madrid, Spain
| | - H Y Tong
- Department of Clinical Pharmacology, La Paz University Hospital, Researching Consortium PIELenRed, Paseo La Castellana 261, CP 28046, Madrid, Spain
| | - E Ramírez
- Department of Clinical Pharmacology, La Paz University Hospital, Researching Consortium PIELenRed, Paseo La Castellana 261, CP 28046, Madrid, Spain
| | - E Ruiz-Bravo
- Department of Dermatopathology, La Paz University Hospital, Researching Consortium PIELenRed, Paseo La Castellana 261, CP 28046, Madrid, Spain
| | - T Bellón
- Research Department, La Paz University Hospital, Researching Consortium PIELenRed, Paseo La Castellana 261, CP 28046, Madrid, Spain
| | - R Cabañas
- Department of Allergy, La Paz University Hospital, Researching Consortium PIELenRed, Paseo La Castellana 261, CP 28046, Madrid, Spain
| | - L Cachafeiro
- Department of Intensive Care Unit, La Paz University Hospital, Researching Consortium PIELenRed, Paseo La Castellana 261, CP 28046, Madrid, Spain
| | - P Herranz-Pinto
- Department of Dermatology, La Paz University Hospital, Researching Consortium PIELenRed, Paseo La Castellana 261, CP 28046, Madrid, Spain
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17
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Berlana D, Almendral M, Abad M, Fernández A, Torralba A, Cervera M, Piñeiro G, Romero R, Vázquez A, Ramírez E, Marced-Barrachina E, Muñoz A, Torres C. SUN-PP015: Economic Assessment in the Preparation Process of Parenteral Nutrition: Manual Compounded Bags Versus Tricompartimental Bags. Nutripar Study. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30166-7] [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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18
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Ramírez E, Martín A, Lorente M, Vara C, Ojeda J, Moro M, Gómez R, Asensio M, Orduña M, Frías J. A Computerized System for Reporting and Analysis of Incidents, Errors or Adverse Events: Results Of 2014. Clin Ther 2015. [DOI: 10.1016/j.clinthera.2015.05.391] [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: 10/23/2022]
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19
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Borobia A, Lubomirov R, Abad F, Tong H, Ramírez E, Frías J, Carcas A. Pharmacogenetic Implementation In The Routine Clinical Practice: Design of A Multicenter Pilot Clinical Trial. Clin Ther 2015. [DOI: 10.1016/j.clinthera.2015.05.370] [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: 10/23/2022]
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20
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Muñoz-Romo R, Borobia A, Quintana M, Ramírez E, Muñoz M, Tong H, Frías J, Carcas A. Sat-Hulp Toxicovigilance program: Results of 30 Months. Clin Ther 2015. [DOI: 10.1016/j.clinthera.2015.05.365] [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: 11/29/2022]
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21
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Guilera J, Ramírez E, Fité C, Tejero J, Cunill F. Synthesis of ethyl hexyl ether over acidic ion-exchange resins for cleaner diesel fuel. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01548g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Identifying the resin polymer zones where ethyl hexyl ether and by-products are preferentially formed in hexanol etherification with diethyl carbonate.
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Affiliation(s)
- J. Guilera
- Chemical Engineering Department
- Faculty of Chemistry
- University of Barcelona
- 08028 Barcelona
- Spain
| | - E. Ramírez
- Chemical Engineering Department
- Faculty of Chemistry
- University of Barcelona
- 08028 Barcelona
- Spain
| | - C. Fité
- Chemical Engineering Department
- Faculty of Chemistry
- University of Barcelona
- 08028 Barcelona
- Spain
| | - J. Tejero
- Chemical Engineering Department
- Faculty of Chemistry
- University of Barcelona
- 08028 Barcelona
- Spain
| | - F. Cunill
- Chemical Engineering Department
- Faculty of Chemistry
- University of Barcelona
- 08028 Barcelona
- Spain
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Velásquez-Cock J, Ramírez E, Betancourt S, Putaux JL, Osorio M, Castro C, Gañán P, Zuluaga R. Influence of the acid type in the production of chitosan films reinforced with bacterial nanocellulose. Int J Biol Macromol 2014; 69:208-13. [DOI: 10.1016/j.ijbiomac.2014.05.040] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 04/24/2014] [Accepted: 05/12/2014] [Indexed: 11/16/2022]
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Soto R, Fité C, Ramírez E, Bringué R, Cunill F. Equilibrium of the simultaneous etherification of isobutene and isoamylenes with ethanol in liquid-phase. Chem Eng Res Des 2014. [DOI: 10.1016/j.cherd.2013.11.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ramírez E, Cabañas R, Laserna LS, Fiandor A, Tong H, Prior N, Calderón O, Medrano N, Bobolea I, Frías J, Quirce S. Proton pump inhibitors are associated with hypersensitivity reactions to drugs in hospitalized patients: a nested case-control in a retrospective cohort study. Clin Exp Allergy 2013; 43:344-52. [PMID: 23414543 DOI: 10.1111/cea.12034] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 08/27/2012] [Accepted: 08/29/2012] [Indexed: 11/30/2022]
Abstract
BACKGROUND Previous research has shown that gastric acid suppression by antacid drugs can promote allergic reactions to acid-labile food proteins. No data are available about whether antacid drugs can promote drug hypersensitivity reactions. The most potent and longer lasting inhibition of gastric secretion is provided by proton pump inhibitors (PPIs). We hypothesized that gastric acid suppression by proton pump inhibitors could be causative of drug hypersensitivity reactions during hospitalization. OBJECTIVE To estimate the risk of developing drug hypersensitivity reactions during the hospitalization of patients treated with proton pump inhibitors, and other associated factors. METHODS A nested case-control in a retrospective cohort study of hospitalized patients from September 2008 to December 2010 (70 771 admissions) was conducted using the registry of cases of interconsultations to the Allergy Department (161 confirmed cases of drug hypersensitivity reactions). A total of 318 controls were matched by first drug suspected in the hypersensitivity reaction, time of admission, age, gender and hospitalization wards. RESULTS The relative risk of drug hypersensitivity reaction occurrence during hospitalization of patients treated with PPIs compared with those not treated in the period of study was significant (RR: 3.97; 95% CI: 1.97-8.29). After controlling for confounders in the nested case-control cohort, the use of PPIs persists as a predisposing factor (OR: 4.35; 95% CI: 2-9.45). Personal history of drug allergy and a long hospitalization time were other predisposing factors of drug hypersensitivity reactions (DHRs). The hazard that a DHR has occurred during PPI treatment was 3.7% per day. The hazard for immediate or accelerated reactions was 1.706 (P = 0.003) times that of delayed reactions. CONCLUSION AND CLINICAL RELEVANCE In hospitalized patients, the use of proton pump inhibitors was associated with a significant increase risk of drug hypersensitivity reactions along with a personal history of drug allergies and long hospitalization time.
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Affiliation(s)
- E Ramírez
- Department of Clinical Pharmacology, Hospital La Paz Health Research Institute (IdiPAZ), School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.
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Tong H, Medrano N, Zegarra C, Caparrós A, Borobia A, Frías J, Ramírez E. PP027—Drug-induced liver injury detected through a pharmacovigilance program based in laboratory signals. Clin Ther 2013. [DOI: 10.1016/j.clinthera.2013.07.062] [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: 11/26/2022]
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26
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Alañón E, Escudero V, Ramírez E, Trovato N, Bellin MJ, Morell A, Sanjurjo M. DGI-011 Anti-Tumor Necrosis Factor Real-World Doses: Four-Year Retrospective Study in Rheumatoid Arthritis Patients in Two Hospitals in Spain: Abstract DGI-011 Table 1. Eur J Hosp Pharm 2013. [DOI: 10.1136/ejhpharm-2013-000276.277] [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: 11/04/2022] Open
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Ramírez E, Abraira V, Guerra P, Borobia AM, Duque B, López JL, Mosquera B, Lubomirov R, Carcas AJ, Frías J. A preliminary model to avoid the overestimation of sample size in bioequivalence studies. Drug Res (Stuttg) 2013; 63:98-103. [PMID: 23427051 DOI: 10.1055/s-0032-1333296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Often the only available data in literature for sample size estimations in bioequivalence studies is intersubject variability, which tends to result in overestimation of sample size. In this paper, we proposed a preliminary model of intrasubject variability based on intersubject variability for Cmax and AUC data from randomized, crossovers, bioequivalence (BE) studies. From 93 Cmax and 121 AUC data from test-reference comparisons that fulfilled BE criteria, we calculated intersubject variability for the reference formulation and intrasubject variability from ANOVA. Lineal and exponential models (y=a(1-e-bx)) were fitted weighted by the inverse of the variance, to predict the intrasubject variability based on intersubject variability. To validate the model we calculated the coefficient of cross-validation of data from 30 new BE studies. The models fit very well (R2=0.997 and 0.990 for Cmax and AUC respectively) and the cross-validation correlation were 0.847 for Cmax and 0.572 for AUC. A preliminary model analyses allow us to estimate the intrasubject variability based on intersubject variability for sample size calculation purposes in BE studies. This approximation provides an opportunity for sample size reduction avoiding unnecessary exposure of healthy volunteers. Further modelling studies are desirable to confirm these results especially suggestions of the higher intersubject variability range.
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Affiliation(s)
- E Ramírez
- School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.
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Millán J, Casáis R, Delibes-Mateos M, Calvete C, Rouco C, Castro F, Colomar V, Casas-Díaz E, Ramírez E, Moreno S, Prieto JM, Villafuerte R. Widespread exposure to Sarcoptes scabiei in wild European rabbits (Oryctolagus cuniculus) in Spain. Vet Parasitol 2011; 183:323-9. [PMID: 21852039 DOI: 10.1016/j.vetpar.2011.07.046] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [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: 02/15/2011] [Revised: 07/12/2011] [Accepted: 07/25/2011] [Indexed: 11/18/2022]
Abstract
Sarcoptic mange was recently described in the wild European rabbit (Oryctolagus cuniculus) in north-eastern Mediterranean Spain, the first such infection reported in this species anywhere in the world. This finding has created concern in conservationists and game managers given that an outbreak of mange after a translocation would have catastrophic consequences for naïve rabbit populations in other parts of Spain. A retrospective serosurvey using an 'in house' ELISA test based on the use of a recombinant antigen aimed at determining the rates of contact with Sarcoptes scabiei was carried out on sera from 966 rabbits collected between 1993 and 2010 in Spain. Antibodies were found in 13% of wild rabbits in 60% of the 53 areas surveyed, as well as in 16 of the 17 Spanish provinces and islands studied. Seropositive rabbits were found amongst the oldest samples analyzed and in all studied years. Antibodies were also detected in 36% of rabbits from the protected island of Dragonera, where rabbits have probably not been released since the 1970s. On Mallorca, where 89 rabbits were inspected for both lesions and antibodies, the prevalence of lesions (5.6%) was much lower than the seroprevalence (22.5%), indicating that rabbits often survive infection or that ELISA detects infected rabbits before they develop visible lesions. Seroprevalence was higher in areas with medium levels of rabbit abundance, no restocking and high rainfall. The results show that mange is widespread in rabbits and that the mite is not a recent introduction. Thus, sarcoptic mange could be considered as an enzootic disease in the wild rabbit and so prophylactic measures implemented during rabbit translocations are to be encouraged to avoid local outbreaks in naïve populations.
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Affiliation(s)
- J Millán
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS) (Wildlife Diseases Research Group), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.
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Ramírez E, García-Rodríguez J, Borobia AM, Ortega JM, Lei S, Barrios-Fernández A, Sánchez M, Carcas AJ, Herrero A, Puente JM, Frías J. Use of antifungal agents in pediatric and adult high-risk areas. Eur J Clin Microbiol Infect Dis 2011; 31:337-47. [DOI: 10.1007/s10096-011-1315-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2010] [Accepted: 06/01/2011] [Indexed: 11/25/2022]
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30
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Ramírez E, Mayorga M, Cuevas D, Recasens F. Fatty oil hydrogenation in supercritical solvents: Process design and safety issues. J Supercrit Fluids 2011. [DOI: 10.1016/j.supflu.2011.02.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Alfaro F, Checa A, Ramírez E, Cevey M, Meneu J, Abradelo M, Moreno E, Paz-Artal E, Mellado M, Serrano A. In Vitro Evaluation of New Possible Cell Engraftment Enhancers for Cell Transplantation. Transplant Proc 2010; 42:671-2. [DOI: 10.1016/j.transproceed.2010.02.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Piñana E, Lei SH, Merino R, Melgosa M, De La Vega R, Gonzales-Obeso E, Ramírez E, Borobia A, Carcas A. DRESS-syndrome on sulfasalazine and naproxen treatment for juvenile idiopathic arthritis and reactivation of human herpevirus 6 in an 11-year-old caucasian boy. J Clin Pharm Ther 2010; 35:365-70. [DOI: 10.1111/j.1365-2710.2009.01081.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Ramírez E, Serrano A, García F, Alfaro FJ, Pérez V, Paz-Artal E, Morales JM. Prospective study on autoantibodies against apolipoprotein H (beta2GPI) in several clinical parameters from patients with terminal renal failure and functioning renal transplants. Transplant Proc 2010; 41:2370-2. [PMID: 19715922 DOI: 10.1016/j.transproceed.2009.06.104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Renal transplantation is the best therapeutic option for patients with end-stage renal disease. However, long-term results have not been very encouraging because of patient deaths due to cardiovascular disease and chronic transplant nephropathy (CTN), which includes vascular damage similar to arteriosclerosis injury. Several autoantibodies have been related to vasculopathy in the transplant such as anti-beta2GPI IgA, IgG, and IgM autoantibodies. We analyzed the levels of these autoantibodies among a cohort of 176 transplant recipients and a control group of 80 healthy subjects using enzyme-linked immunosorbent assay (ELISA). We collected data concerning the cardiovascular status of the patients, such as age, sex, diabetes mellitus, biopsy-confirmed CTN, schemic cardiopathy, cholesterol, triglycerides, and renal status by Modification of Diet in Renal Disease (MDRD) clearance and proteinuria. We also selected other characteristics, including hepatitis C virus infection and systolic/diastolic arterial pressures. The proportion of patients with high levels of IgG and IgM anti-beta2GPI autoantibodies did not differ from that observed in the control group, whereas the difference became significant in the case of anti-beta2GPI IgA autoantibodies (19.88% vs 1%). These results for the presence of anti-beta2GPI IgA autoantibodies were related to clinical data through a multivariate analysis, where the only parameter influenced by the presence of these autoantibodies seemed to be proteinuria, which in most cases was due to CTN.
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Affiliation(s)
- E Ramírez
- Immunology and Nephrology Departments, Hospital Universitario 12 de Octubre, Madrid, Spain
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Ramírez E, Pacho A, Morales J, De Castro I, Paz-Artal E, Morales P. Frequency and Influence of Hemochromatosis Gene Mutations in Kidney Transplant Recipients With or Without Hepatitis C Virus Infection. Transplant Proc 2009; 41:2422-4. [DOI: 10.1016/j.transproceed.2009.06.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ramírez E, Morales J, Lora D, Mellado M, Cevey M, Alfaro F, De Pablos P, Andrés A, Paz-Artal E, Serrano A. Peripheral Blood Regulatory T Cells in Long-Term Kidney Transplant Recipients. Transplant Proc 2009; 41:2360-2. [DOI: 10.1016/j.transproceed.2009.05.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Alfaro F, Grau M, Ramírez E, Cevey M, Mellado M, Castro M, Meneu J, Abradelo M, Camañas C, Moreno E, Morales P, Paz-Artal E, Serrano A. An In Vitro Model of Cell Transplantation for Evaluation of Cell Engraftment Enhancers. Transplant Proc 2009; 41:2487-90. [DOI: 10.1016/j.transproceed.2009.05.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Alvarado-Esquivel C, Cruz-Magallanes HM, Esquivel-Cruz R, Estrada-Martínez S, Rivas-González M, Liesenfeld O, Martínez-García SA, Ramírez E, Torres-Castorena A, Castañeda A, Dubey JP. Seroepidemiology of Toxoplasma gondii infection in human adults from three rural communities in Durango State, Mexico. J Parasitol 2008; 94:811-6. [PMID: 18576838 DOI: 10.1645/ge-1524.1] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2007] [Accepted: 11/16/2007] [Indexed: 11/10/2022] Open
Abstract
There is scarce information concerning the epidemiology of Toxoplasma gondii infection in people of rural Mexico. Anti-T. gondii immunoglobulin (Ig)G and IgM antibodies were sought in 462 adult inhabitants from 3 rural communities of Durango, Mexico, using enzyme-linked immunoassays. In total, 110 (23.8%) of 463 persons had IgG anti-T. gondii antibodies. Ten (2.2%) of them also had IgM anti-T. gondii antibodies. Prevalences of T. gondii IgG antibodies in the 3 communities varied from 14.8 to 35.8%. The highest prevalence of infection was observed in participants older than 70 yr and in those with good housing conditions. Toxoplasma gondii infection was significantly associated with consumption of squirrel (adjusted odds ratio [OR] = 4.22; 95% confidence interval [CI] = 1.11-16.05) and turkey meat (adjusted OR = 4.58; 95% CI = 1.14-18.44). This is the first epidemiological study of T. gondii prevalence in rural Mexico.
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Affiliation(s)
- C Alvarado-Esquivel
- Faculty of Medicine, Juárez University of Durango State, Avenida Universidad S/N esquina Fanny Anitua, Durango, Dgo, Mexico
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Cabeza M, Heuze I, Sánchez M, Bratoeff E, Ramírez E, Rojas A, Orozco A, Mungía A, Agustín G, Cuatepotzo L, Gonzalez C, Palma S, Padilla D, Perez V, Jimenez G. Relative binding affinity of novel steroids to androgen receptors in hamster prostate. J Enzyme Inhib Med Chem 2008; 20:357-64. [PMID: 16206830 DOI: 10.1080/14756360500148924] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
The in vivo and in vitro antiandrogenic activity of four aromatic esters 10a-10d, one aliphatic ester 10e based on the pregna-4,16-diene-6, 20-dione structure and two aromatic 17c, 17d and two aliphatic valeroyloxy esters 17a, 17b based on the more saturated 4-pregnene-6,20-dione skeleton was examined. The biological activity of steroids 9, 10a-10e and 17a-17d, was determined using prostate glands from gonadectomized adult male golden hamsters. In the in vitro studies, the relative binding affinity of these steroids to cytoplasmic androgen receptor (AR) of hamster prostate was determined from, the corresponding IC50 values obtained from the competitive binding plots. The standards dihydrotestosterone (DHT) and cyproterone (CA) acetate used have displaced [3H]DHT from the AR with an IC50 value of 3.2 and 4.4 nM respectively. All steroidal compounds synthesized in this study showed a binding affinity for the androgen receptor, present in the cytosol from prostate hamster; compounds 10a-10c showed the highest affinities for this receptor. The in vivo experiments showed that all steroidal derivatives were subcutaneously active, since they decreased the weight of the prostate gland in gonadectomized hamsters treated with DHT, and are antagonists for the androgen receptor since they block the DHT-induced prostate weight gain. The derivatives having the more conjugated 4,16-pregnadiene-6, 20-dione system (10a-10c) exhibited a higher antiandrogenic activity than the corresponding steroids (17a-17d) based on the more saturated 4-pregnene-6,20-dione system.
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Affiliation(s)
- M Cabeza
- Department of Biological Systems and Animal Production, Metropolitan University-Xochimilco, Mexico DF, Mexico.
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Martín-Morales A, Meyer G, Ramírez E. Prevalencia de disfunción eyaculatoria secundaria al tratamiento con alfa-bloqueantes en pacientes con hiperplasia benigna de próstata. Actas Urol Esp 2008. [DOI: 10.4321/s0210-48062008000700006] [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: 11/11/2022]
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Ramírez E, Moreno V, Díaz N, Osorio F, Ruiz A, Neira V, Quezada M. Evaluation of the pathogenicity and transmissibility of a chilean isolate of porcine reproductive and respiratory syndrome virus. Transbound Emerg Dis 2008; 55:115-24. [PMID: 18397499 DOI: 10.1111/j.1865-1682.2007.00991.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The objective of this study was to determine clinical features, shedding and transmission of a Chilean Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) strain upon experimental inoculation of 4-week-old pigs. Six groups of five animals each were used. The G1 (donor) group was inoculated with PRRSV, maintained in an isolation unit for 35 days, and sampled daily to determine shedding in mucosal secretions and faeces, viraemia and seroconversion. An uninfected control group (G6) was equally maintained and sampled under strict isolation. Four other groups (G2 to G5) were exposed to PRRSV via direct contact with G1 for 5-day periods in a staggered manner, throughout the 35-day period, and were later placed in an independent isolation unit to monitor infection status for 7 days. All the animals in G1 and G6 were killed at 35 days post-inoculation (dpi) and the contact groups at 12 days post-contact (dpc). Samples were obtained from diverse organs for histopathological, immunohistochemical (IHC) and virological analysis. No clinical symptoms were evident in any group, except for a transient fever observed in G1. Histopathologically, all the animals of G1 had interstitial pneumonia, although scarce PRRSV-positive cells were detected in the lung using IHC. PRRSV-positive cells (IHC) were detected in the lymphoid tissue of all animals in infected groups, but especially in G3 and G4. Viraemia was detected in G1 (3-35 dpi) and in the all contact groups (5-12 dpc). Likewise, ranging from 3 to 19 dpi, PRRSV was detected in at least one animal from the tonsils and lungs in all infected groups, in nasal and ocular secretions, saliva or faeces. These results indicate that the donor group excreted infectious PRRSV and was able to transmit the infection to susceptible pigs. The critical shedding period was 7-19 dpi, during which, most likely, transmission took place.
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Affiliation(s)
- E Ramírez
- Facultad de Medicina Veterinaria, Universidad de Concepción, Chillán, Chile
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Ramírez E, López GE. Isotopic effect in the solid–liquid phase diagram of quantum clusters. Mol Phys 2007. [DOI: 10.1080/00268970701678915] [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: 10/22/2022]
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Guardo A, Casanovas M, Ramírez E, Recasens F, Magaña I, Martínez D, Larrayoz M. CFD modeling on external mass transfer and intra-particle diffusional effects on the supercritical hydrogenation of sunflower oil. Chem Eng Sci 2007. [DOI: 10.1016/j.ces.2007.01.080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Santana A, Larrayoz M, Ramírez E, Nistal J, Recasens F. Sunflower oil hydrogenation on Pd in supercritical solvents: Kinetics and selectivities. J Supercrit Fluids 2007. [DOI: 10.1016/j.supflu.2006.12.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ramírez E, Ruiz A, Islas A, Lecocq C, Carrasco L, Quezada M. Características hematológicas y patológicas de cerdos inoculados experimentalmente con el aislado chileno del virus síndrome respiratorio y reproductivo porcino. ACTA ACUST UNITED AC 2006. [DOI: 10.4067/s0301-732x2006000200009] [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: 11/17/2022]
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Rodríguez-Baño J, Ramírez E, Muniain MA, Santos J, Joyanes P, González F, García-Sánchez M, Martínez-Martínez L. Colonization by high-level aminoglycoside-resistant enterococci in intensive care unit patients: epidemiology and clinical relevance. J Hosp Infect 2005; 60:353-9. [PMID: 15893852 DOI: 10.1016/j.jhin.2004.12.024] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2003] [Accepted: 12/15/2004] [Indexed: 11/30/2022]
Abstract
A cohort study was performed to investigate the risk factors for colonization with high-level aminoglycoside-resistant enterococci (HLARE) in intensive care unit (ICU) patients. Colonization was investigated by performing surveillance samples during ICU stay. Clonal relatedness of the isolates was assessed by pulsed-field gel electrophoresis. Eighty-six patients with an ICU stay of >48 h were included; two were colonized with HLARE at admission, and 24 (28.5%) acquired HLARE during their stay in the ICU. HLARE were initially isolated from rectal swabs alone. Thirty-five percent of Enterococcus faecalis and 57% of E. faecium showed high-level resistance to gentamicin or streptomycin. Most isolates were clonally unrelated. Using multi-variate analysis, the only variable associated with HLARE colonization was previous antimicrobial use. Five patients had HLARE isolated from clinical samples, three of them with infection; in all of these, colonization with the same clone had been detected previously by surveillance samples. We conclude that most infections due to HLARE in the ICU are preceded by previous colonization, and that antimicrobial use is the main risk factor for colonization.
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Affiliation(s)
- J Rodríguez-Baño
- Sección de Enfermedades Infecciosas, Hospital Universitario Virgen Macarena, Avda. Dr. Fedriani, 3, 41071 Sevilla, Spain.
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Salinas G, Velásquez C, Saavedra L, Ramírez E, Angulo H, Tamayo JC, Orellana A, Huivin Z, Valdivia C, Rodríguez W. Prevalence and risk factors for gallstone disease. Surg Laparosc Endosc Percutan Tech 2005; 14:250-3. [PMID: 15492651 DOI: 10.1097/00129689-200410000-00003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [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: 12/15/2022]
Abstract
Gallstone disease is a main public health problem. The overall prevalence data range from 3.9% in the pre-echographic era to 13.7% when ultrasonography was used as a diagnostic tool. This study is aimed to determine the prevalence of gallstone disease in a medium income level population in Lima, as well as the relationship with some risk factors: age, sex, familiar history and obesity. A total of 534 adult men and women from a medium economic level underwent ultrasonographic examination of abdomen for detection of gallstone disease (July 2003). The echographic evaluation was performed by 10 general surgeons trained in ultrasonography. Likewise, 4 risk factors--age, gender, familial history, and obesity--were analyzed. Pearson chi2 test (2-sided) was used with a probability of <0.05 for statistical significance and logistic regression analyses for assessment of confounding factors. The prevalence founded was 15%. Eighty-one of 534 participants had lithiasis. Compared to the age group under 30, the odds ratio for the 31 to 50 years and >50 years of age group was 0.9 and 1.1, respectively. The female-male ratio was 1.07 and the odds ratio 0.8. The prevalence of gallstone disease in people reporting a first-degree relative with lithiasis was 21%, whereas in participants without such a condition, it was 13%. On the other hand, a familial history was present in 38% of the lithiasis group and in 25% of the nonlithiasis group. The odds ratio for familial history was 1.8 (P = 0.01, 95% confidence interval 1.1-2.9). The prevalence of the disease for body mass index <24, 25 to 29, and higher than 30 was 17%, 14% and 13%, respectively. Compared to the reference group (body mass index <24), the other 2 groups (body mass index 25-29 and >30) both had a similar odds ratio, 0.8. Logistic regression analyses showed an odds ratio of 1.9 for familiar history (95% confidence interval 1.1-3.2), whereas the odds ratio of the overweight (body mass index 25-29) and obese group (body mass index >30) when compared to the normal group, BMI <24, was 0.7 and 0.9, respectively. The prevalence data for gallstone disease remain slightly higher than those previously reported. Although the familiar history was the only characteristic with a statistically significant positive relationship with lithiasis, additional studies are needed because few biases could not be completely avoided and some confounding factors were not controlled.
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Affiliation(s)
- G Salinas
- Endoscopìa Quirùrgica, Surco, Lima, Peru
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