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García-Lluch G, Pardo J, Moreno L, Peña-Bautista C, Baquero M, Cháfer-Pericás C. Cardiovascular Risk Scales Association with Cerebrospinal Fluid Alzheimer's Disease Biomarkers in Cardiovascular Low Cardiovascular Risk Regions. J Prev Alzheimers Dis 2024; 11:453-462. [PMID: 38374752 DOI: 10.14283/jpad.2024.16] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
BACKGROUND Cardiovascular risk factors are associated with Alzheimer's Disease (AD) development. However, few studies compare the overall cardiovascular risk with AD biomarkers, and when done, they are mainly performed in moderate cardiovascular risk regions. OBJECTIVES To determine whether cardiovascular risk in older adults is associated with pathological cerebrospinal fluid (CSF) biomarkers of AD in a low cardiovascular risk population. DESIGN This is a cross-sectional study performed between 2017 and 2020. PARTICIPANTS The present work included patients between 50 and 75 years old who were negative for CSF AD biomarkers and had minimum cognitive alterations (controls) and patients with positive CSF AD biomarkers and in early stages of AD (cases). MEASUREMENTS CSF biomarkers included total tau, phosphorylated tau 181 and amyloid ß42 (Aß42). Analytical variables were obtained. ERICE, SCORE2 and Framingham scales were used to calculate the overall patient's cardiovascular risk. The Aß42/Aß40 ratio and neurofilaments were explored when available. RESULTS Two hundred and thirty-three patients were included. Nearly 76% of the sample had AD. AD patients had higher cardiovascular risk than controls (p-value < 0.05). ERICE and SCORE2 were associated with AD presence. Framingham was not. A correlation between elevated cardiovascular risk and higher total tau and NfL levels was observed when adjusted by age. CONCLUSION Cardiovascular risk assessment may be helpful in neurodegenerative disorders detection, as it is associated with CSF total tau and NfL. ERICE and SCORE2 may be useful scales in low cardiovascular risk regions to improve cardiovascular control and prevent neurodegenerative pathologies.
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Affiliation(s)
- G García-Lluch
- Dr. Juan Pardo Albiach, Dr. Consuelo Cháfer-Pericás. Health Research Institute La Fe, 46026 Valencia, Spain; E-mail: ; E. mail: , Phone: +34-96-124 67 21; Fax: +34-96-124 46 57
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Ferrer-Cairols I, Ferré-González L, García-Lluch G, Peña-Bautista C, Álvarez-Sánchez L, Baquero M, Cháfer-Pericás C. Emotion recognition and baseline cortisol levels relationship in early Alzheimer disease. Biol Psychol 2023; 177:108511. [PMID: 36716987 DOI: 10.1016/j.biopsycho.2023.108511] [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: 09/23/2022] [Revised: 01/09/2023] [Accepted: 01/26/2023] [Indexed: 01/30/2023]
Abstract
BACKGROUND Emotion recognition is often impaired in early Alzheimer's disease (AD) and can be evaluated using the Reading the Mind in the Eyes Test (RMET). Similarly, cortisol levels can affect cognition and could be considered a biomarker of AD. OBJECTIVES The aim of this study was to analyse the relationship between the emotion recognition task and cortisol levels in participants with early Alzheimer Disease (AD). METHODS Complex emotion recognition was assessed with RMET, and plasma cortisol levels were determined by mass spectrometry in participants classified into mild cognitive impairment (MCI) due to AD (n = 25), mild dementia (MD) due to AD (n = 20), MCI non-AD (n = 34), MD non-AD (n = 13) and healthy controls (HC) (n = 16) groups. RESULTS Significantly lower positive emotion recognition was found in the MCI non-AD group (p = 0.02) and lower emotion recognition in MD (AD and non-AD) groups (p < 0.01) compared to the healthy group. In addition, significant differences were observed between cortisol and all RMET scores among the MCI and MD groups (p < 0.01). A significant correlation was also obtained between total and neutral RMET scores and cortisol levels in MD groups (p = 0.01). CONCLUSIONS These outcomes suggest that detection of positive emotion dysfunction could help to identify MCI non-AD patients. Furthermore, general impaired emotion recognition and high cortisol levels may be associated with cognitive impairment at mild dementia level.
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Affiliation(s)
- I Ferrer-Cairols
- Research Group in Alzheimer Disease. Health Research Institute La Fe, Valencia, Spain
| | - L Ferré-González
- Research Group in Alzheimer Disease. Health Research Institute La Fe, Valencia, Spain
| | - G García-Lluch
- Research Group in Alzheimer Disease. Health Research Institute La Fe, Valencia, Spain
| | - C Peña-Bautista
- Research Group in Alzheimer Disease. Health Research Institute La Fe, Valencia, Spain
| | - L Álvarez-Sánchez
- Research Group in Alzheimer Disease. Health Research Institute La Fe, Valencia, Spain
| | - M Baquero
- Research Group in Alzheimer Disease. Health Research Institute La Fe, Valencia, Spain; Neurology Unit, University and Polytechnic Hospital La Fe, Valencia, Spain
| | - C Cháfer-Pericás
- Research Group in Alzheimer Disease. Health Research Institute La Fe, Valencia, Spain.
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Garcia JR, Baquero M, Bassa P, Compte A, Mourelo S, Riera E. A false-positive case on brain 18F-Choline PET/MR due to tumefactive multiple sclerosis. A case report. Rev Esp Med Nucl Imagen Mol 2021; 41:S2253-654X(21)00055-X. [PMID: 33858799 DOI: 10.1016/j.remn.2021.02.013] [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: 11/03/2020] [Revised: 02/03/2021] [Accepted: 02/07/2021] [Indexed: 11/22/2022]
Affiliation(s)
- J R Garcia
- CETIR Viladomat. Ascires Grupo médico, Esplugues de Llobregat, Barcelona, España.
| | - M Baquero
- CETIR Viladomat. Ascires Grupo médico, Esplugues de Llobregat, Barcelona, España
| | - P Bassa
- CETIR Viladomat. Ascires Grupo médico, Esplugues de Llobregat, Barcelona, España
| | - A Compte
- CETIR Viladomat. Ascires Grupo médico, Esplugues de Llobregat, Barcelona, España
| | - S Mourelo
- CETIR Viladomat. Ascires Grupo médico, Esplugues de Llobregat, Barcelona, España
| | - E Riera
- CETIR Viladomat. Ascires Grupo médico, Esplugues de Llobregat, Barcelona, España
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Garcia J, Baquero M, Bassa P, Compte A, Mourelo S, Riera E. A false-positive case on brain 18F-Choline PET/MR due to tumefactive multiple sclerosis. A case report. Rev Esp Med Nucl Imagen Mol 2021; 41:264-265. [DOI: 10.1016/j.remnie.2021.04.014] [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] [Received: 11/03/2020] [Accepted: 02/07/2021] [Indexed: 11/28/2022]
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Arnaez J, Herranz-Rubia N, Garcia-Alix A, Diez-Delgado J, Benavente-Fernández I, Tofé I, Jerez A, Hurtado J, Ceballos J, Millán M, Esquivel M, Ruiz C, Baca M, Tapia E, Losada M, Torres E, Pavón A, Jiménez P, Jiménez F, Ventura M, Rite S, González T, Arias R, Balliu P, Lloreda-García J, Alcaráz J, Tapia C, de la Morena A, Centelles I, Güemes I, Estañ J, Alberola A, Aparici S, López R, Beceiro J, García B, Martínez L, González E, Arruza L, Blanco M, Moral M, Arias B, Mar F, Jiménez J, Romera G, Cuñarro A, Muñóz C, Cabañas F, Valverde E, Montero R, Tejedor J, Santana C, Reyes B, Romero S, Orizaola A, Baquero M, Hernández D, Pantoja A, Vega-del-Val C, Castañón L, Gutiérrez E, Benito M, Caserío S, Arca G, García M, López-Vílchez M, Castells L, Domingo M, Coroleu W, Boix H, Porta R, García-Alix A, Martínez-Nadal S, Jiménez E, Sole E, Albújar M, Fernández E, Barrio A, Piñán E, Avila-Alvarez A, Vázquez M, Balado N, Crespo P, Couce M, Concheiro-Guisán A, Esteban I, Lavilla A, Alzina V, Aguirre A, Loureiro B, Echániz I, Elorza M, Euba A. Atención integral del neonato con encefalopatía hipóxico-isquémica en España. An Pediatr (Barc) 2020; 92:286-296. [DOI: 10.1016/j.anpedi.2019.05.013] [Citation(s) in RCA: 3] [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] [Received: 04/10/2019] [Revised: 05/22/2019] [Accepted: 05/24/2019] [Indexed: 10/26/2022] Open
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Marin‐Marin L, Costumero V, Belloch V, Escudero J, Baquero M, Parcet M, Ávila C. Effects of bilingualism on white matter atrophy in mild cognitive impairment: a diffusion tensor imaging study. Eur J Neurol 2020; 27:603-608. [DOI: 10.1111/ene.14135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 12/03/2019] [Indexed: 12/17/2022]
Affiliation(s)
- L. Marin‐Marin
- Neuropsychology and Functional Neuroimaging Group University Jaume I Castelló Spain
| | - V. Costumero
- Neuropsychology and Functional Neuroimaging Group University Jaume I Castelló Spain
- Center for Brain and Cognition University Pompeu Fabra Barcelona Spain
- ERI Lectura University of Valencia València Spain
| | | | - J. Escudero
- Department of Neurology General Hospital of Valencia València Spain
| | - M. Baquero
- Neurology Unit University and Polytechnic Hospital La Fe València Spain
| | - M.‐A. Parcet
- Neuropsychology and Functional Neuroimaging Group University Jaume I Castelló Spain
| | - C. Ávila
- Neuropsychology and Functional Neuroimaging Group University Jaume I Castelló Spain
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Pascottini OB, Baquero M, Serrenho RC, Van Schyndel S, Bienzle D, LeBlanc S. Technical note: Assessment of neutrophil endocytosis and proteolytic degradation and its relationship with phagocytosis and oxidative burst in dairy cows. J Dairy Sci 2019; 102:9396-9400. [DOI: 10.3168/jds.2019-16687] [Citation(s) in RCA: 4] [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] [Received: 03/26/2019] [Accepted: 06/18/2019] [Indexed: 12/21/2022]
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Peña-Bautista C, Baquero M, Ferrer I, Hervás D, Vento M, García-Blanco A, Cháfer-Pericás C. Neuropsychological assessment and cortisol levels in biofluids from early Alzheimer's disease patients. Exp Gerontol 2019; 123:10-16. [PMID: 31117002 DOI: 10.1016/j.exger.2019.05.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/18/2019] [Accepted: 05/17/2019] [Indexed: 12/12/2022]
Abstract
Cortisol dysregulation is proposed as a factor in the development of Alzheimer's disease (AD). AD patients can show high cortisol levels in prodromal phases of AD, early enough that neuropsychological alterations exist but activities of daily living remain unimpaired. Nevertheless, it is unknown if biofluid cortisol levels can have some AD predictive power together with neuropsychological assessment in prodromal stages in comparison with other cognitive disorders. In this work, an analytical method based on ultra-performance liquid chromatography coupled to tandem mass spectrometry (UPLC-MS/MS) was applied to determine the cortisol levels in different biofluids (urine, plasma, saliva, cerebrospinal fluid). Early AD patients and non-AD patients recruited at out-patient neurological unit were classified from the standard cerebrospinal fluid biomarkers levels (β-amyloid, tau, phosphorylated tau), and studied with an extensive neuropsychological assessment including global, neuropsychological, functional and affective scales. We used a logistic regression model to discriminate between the AD and non-AD groups. Higher plasma cortisol levels were found in the AD group than in the non-AD group (p < 0.001). Regarding neuropsychological evaluation, delayed memory was used as representative of the neuropsychological status, and lower scores were obtained in the AD group (p < 0.001). The prediction model, including plasma cortisol levels and delayed memory scores, achieved an AUC of 0.93, as well as a sensitivity of 97% and a specificity of 69.4%. In conclusion, plasma cortisol levels and delayed memory scores were specifically impaired in early AD, allowing the development of a new diagnostic model which could be employed as a very satisfactory screening system.
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Affiliation(s)
- C Peña-Bautista
- Neonatal Research Unit, Health Research Institute La Fe, Valencia, Spain
| | - M Baquero
- Neurology Unit, University and Polytechnic Hospital La Fe, Valencia, Spain
| | - I Ferrer
- Neurology Unit, University and Polytechnic Hospital La Fe, Valencia, Spain
| | - D Hervás
- Biostatistical Unit Platform, Health Research Institute La Fe, Valencia, Spain
| | - M Vento
- Neonatal Research Unit, Health Research Institute La Fe, Valencia, Spain
| | - A García-Blanco
- Neonatal Research Unit, Health Research Institute La Fe, Valencia, Spain.
| | - C Cháfer-Pericás
- Neonatal Research Unit, Health Research Institute La Fe, Valencia, Spain.
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Mariño Gutierrez L, Meseguer MA, Baquero M. [The relevance of anatomical specimens in the teaching of Pathology]. Rev Esp Patol 2019; 52:103-111. [PMID: 30902373 DOI: 10.1016/j.patol.2018.10.003] [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: 01/16/2018] [Revised: 10/01/2018] [Accepted: 10/05/2018] [Indexed: 11/18/2022]
Abstract
The relevance of museums of anatomy and pathology lies both in the conservation of anatomical specimens and their excellent reproductions and their use in education and research. The teaching of anatomy dates from ancient times, originating in the Theatrum Anatomicum and anatomical cabinets, located in the anatomy lecture rooms of European medical schools. These were followed by museums of anatomy and pathology in successive centuries. However, after a golden period in the XVIII century, there was a progressive decline which eventually led to a dramatic loss of many museums. Currently, there is a growing interest in the recovery and importance of these collections. We present an historical approach to their development and a review of the current situation in the principal anatomical museums of anatomy in Spain and the rest of Europe.
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MESH Headings
- Education, Medical/history
- Education, Medical/methods
- History, 16th Century
- History, 17th Century
- History, 18th Century
- History, 19th Century
- History, 20th Century
- History, 21st Century
- History, Medieval
- Museums
- Pathology, Clinical/education
- Specimen Handling
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Affiliation(s)
| | | | - Margarita Baquero
- Instituto de Salud Carlos III, Museo de Sanidad e Higiene Pública, Madrid, España
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García J, Baquero M, Soler M, Bassa P, Moreno C, Riera E. Diagnóstico de linfoma de Burkitt mediante PET cerebral con 11C-metionina en paciente VIH positivo con lesiones encefálicas indeterminadas. Rev Esp Med Nucl Imagen Mol 2019; 38:57-58. [DOI: 10.1016/j.remn.2018.01.007] [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] [Received: 11/21/2017] [Revised: 01/26/2018] [Accepted: 01/29/2018] [Indexed: 11/16/2022]
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11
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García J, Baquero M, Soler M, Bassa P, Moreno C, Riera E. Burkitt lymphoma diagnosed on 11C-Methionine cerebral PET in an HIV-positive patient with undetermined brain injury. Rev Esp Med Nucl Imagen Mol 2019. [DOI: 10.1016/j.remnie.2018.04.001] [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: 10/16/2022]
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Arnaez J, Garcia-Alix A, Calvo S, Lubián-López S, Diez-Delgado J, Benavente I, Tofé I, Jerez A, Hurtado J, Ceballos J, Millán M, Esquivel M, Ruiz C, Baca M, Tapia E, Losada M, Torres E, Pavón A, Jiménez P, Jiménez F, Ventura M, Rite S, González T, Arias R, Balliu P, Lloreda-García J, Alcaráz J, Tapia C, de la Morena A, Centelles I, Güemes I, Estañ J, Alberola A, Aparici S, López R, Beceiro J, García B, Martínez L, González E, Arruza L, Blanco M, Moral M, Arias B, Mar F, Jiménez J, Romera G, Cuñarro A, Muñóz C, Cabañas F, Valverde E, Montero R, Tejedor J, Santana C, Reyes B, Romero S, Orizaola A, Baquero M, Hernández D, Pantoja A, Vega C, Castañón L, Gutiérrez E, Benito M, Caserío S, Arca G, García M, López-Vílchez M, Castells L, Domingo M, Coroleu W, Boix H, Porta R, García-Alix A, Martínez-Nadal S, Jiménez E, Sole E, Albújar M, Fernández E, Barrio A, Piñán E, Avila-Alvarez A, Vázquez M, Balado N, Crespo P, Couce M, Concheiro-Guisán A, Esteban I, Lavilla A, Alzina V, Aguirre A, Loureiro B, Echániz I, Euba MEA. Care of the newborn with perinatal asphyxia candidate for therapeutic hypothermia during the first six hours of life in Spain. Anales de Pediatría (English Edition) 2018. [DOI: 10.1016/j.anpede.2017.11.010] [Citation(s) in RCA: 1] [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: 01/15/2023] Open
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13
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Van Belleghem SM, Baquero M, Papa R, Salazar C, McMillan WO, Counterman BA, Jiggins CD, Martin SH. Patterns of Z chromosome divergence among Heliconius species highlight the importance of historical demography. Mol Ecol 2018; 27:3852-3872. [PMID: 29569384 PMCID: PMC6151167 DOI: 10.1111/mec.14560] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 02/14/2018] [Accepted: 02/20/2018] [Indexed: 12/31/2022]
Abstract
Sex chromosomes are disproportionately involved in reproductive isolation and adaptation. In support of such a “large‐X” effect, genome scans between recently diverged populations and species pairs often identify distinct patterns of divergence on the sex chromosome compared to autosomes. When measures of divergence between populations are higher on the sex chromosome compared to autosomes, such patterns could be interpreted as evidence for faster divergence on the sex chromosome, that is “faster‐X”, barriers to gene flow on the sex chromosome. However, demographic changes can strongly skew divergence estimates and are not always taken into consideration. We used 224 whole‐genome sequences representing 36 populations from two Heliconius butterfly clades (H. erato and H. melpomene) to explore patterns of Z chromosome divergence. We show that increased divergence compared to equilibrium expectations can in many cases be explained by demographic change. Among Heliconius erato populations, for instance, population size increase in the ancestral population can explain increased absolute divergence measures on the Z chromosome compared to the autosomes, as a result of increased ancestral Z chromosome genetic diversity. Nonetheless, we do identify increased divergence on the Z chromosome relative to the autosomes in parapatric or sympatric species comparisons that imply postzygotic reproductive barriers. Using simulations, we show that this is consistent with reduced gene flow on the Z chromosome, perhaps due to greater accumulation of incompatibilities. Our work demonstrates the importance of taking demography into account to interpret patterns of divergence on the Z chromosome, but nonetheless provides evidence to support the Z chromosome as a strong barrier to gene flow in incipient Heliconius butterfly species.
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Affiliation(s)
- Steven M Van Belleghem
- Department of Zoology, University of Cambridge, Cambridge, UK.,Department of Biological Sciences, Mississippi State University, Mississippi State, MS, USA.,Department of Biology, Center for Applied Tropical Ecology and Conservation, University of Puerto Rico, Rio Piedras, Puerto Rico.,Smithsonian Tropical Research Institute, Apartado, Panamá, Panama
| | - Margarita Baquero
- Department of Biological Sciences, Mississippi State University, Mississippi State, MS, USA
| | - Riccardo Papa
- Department of Biology, Center for Applied Tropical Ecology and Conservation, University of Puerto Rico, Rio Piedras, Puerto Rico
| | - Camilo Salazar
- Biology Program, Faculty of Natural Sciences and Mathematics, Universidad del Rosario, Carrera, Bogota, Colombia
| | - W Owen McMillan
- Smithsonian Tropical Research Institute, Apartado, Panamá, Panama
| | - Brian A Counterman
- Department of Biological Sciences, Mississippi State University, Mississippi State, MS, USA
| | - Chris D Jiggins
- Department of Zoology, University of Cambridge, Cambridge, UK
| | - Simon H Martin
- Department of Zoology, University of Cambridge, Cambridge, UK
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Garcia J, Corbella C, Baquero M, Bassa P, Soler M. Extracranial metastasis of multiforme glioblastoma detected by 11 C-methionine brain PET/CT. Rev Esp Med Nucl Imagen Mol 2017. [DOI: 10.1016/j.remnie.2016.10.001] [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: 10/19/2022]
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Garcia J, Corbella C, Baquero M, Bassa P, Soler M. Detección de metástasis extracraneal de glioblastoma multiforme mediante PET/TC cerebral con 11 C-metionina. Rev Esp Med Nucl Imagen Mol 2017; 36:271-272. [DOI: 10.1016/j.remn.2016.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/04/2016] [Accepted: 08/05/2016] [Indexed: 11/29/2022]
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Toro C, Trevisi P, López-Quintana B, Amor A, Iglesias N, Subirats M, de Guevara CL, Lago M, Arsuaga M, de la Calle-Prieto F, Herrero D, Rubio M, Puente S, Baquero M. Imported Dengue Infection in a Spanish Hospital with a High Proportion of Travelers from Africa: A 9-Year Retrospective Study. Am J Trop Med Hyg 2017; 96:701-707. [PMID: 28167601 DOI: 10.4269/ajtmh.16-0335] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Epidemiological data on dengue in Africa are still scarce. We investigated imported dengue infection among travelers with a high proportion of subjects from Africa over a 9-year period. From January 2005 to December 2013, blood samples from travelers with clinical suspicion of dengue were analyzed. Dengue was diagnosed using serological, antigen detection, and molecular methods. Subjects were classified according to birthplace (Europeans versus non-Europeans) and last country visited. Overall, 10,307 serum samples corresponding to 8,295 patients were studied; 62% were European travelers, most of them from Spain, and 35.9% were non-Europeans, the majority of whom were born in Africa (mainly Equatorial Guinea) and Latin America (mainly Bolivia, Ecuador, and Colombia). A total of 492 cases of dengue were identified, the highest number of cases corresponding to subjects who had traveled from Africa (N = 189), followed by Latin America (N = 174) and Asia (N = 113). The rate of cases for Africa (4.5%) was inferior to Asia (9%) and Latin America (6.1%). Three peaks of dengue were found (2007, 2010, and 2013) which correlated with African cases. A total of 2,157 of past dengue infections were diagnosed. Non-Europeans who had traveled from Africa had the highest rate of past infection (67.8%), compared with non-Europeans traveling from Latin America (38.7%) or Asia (35%). Dengue infection in certain regions of Africa is underreported and the burden of the disease may have a magnitude similar to endemic countries in Latin America. It is necessary to consider dengue in the differential diagnosis of other febrile diseases in Africa.
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Affiliation(s)
- Carlos Toro
- Service of Microbiology and Parasitology, Carlos III Hospital, Madrid, Spain
| | - Patricia Trevisi
- Investigación Hospital La Paz (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | | | - Aránzazu Amor
- National Centre of Tropical Medicine, Carlos III Institute of Health, Madrid, Spain
| | - Nuria Iglesias
- Investigación Hospital La Paz (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | - Mercedes Subirats
- Service of Microbiology and Parasitology, Carlos III Hospital, Madrid, Spain
| | | | - Mar Lago
- Tropical Diseases Unit, Department of Internal Medicine, Carlos III Hospital, Madrid, Spain
| | - Marta Arsuaga
- Tropical Diseases Unit, Department of Internal Medicine, Carlos III Hospital, Madrid, Spain
| | | | - Dolores Herrero
- Service of Internal Medicine, Quironsalud University Hospital, Madrid, Spain
| | - Margarita Rubio
- School of Biomedical Sciences, European University, Madrid, Spain
| | - Sabino Puente
- Tropical Diseases Unit, Department of Internal Medicine, Carlos III Hospital, Madrid, Spain
| | - Margarita Baquero
- Service of Microbiology and Parasitology, Carlos III Hospital, Madrid, Spain
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Garcia J, Cozar M, Baquero M, Fernández Barrionuevo J, Jaramillo A, Rubio J, Maida G, Soler M, Riera E. The value of 11 C-methionine PET in the early differentiation between tumor recurrence and radionecrosis in patients treated for a high-grade glioma and indeterminate MRI. Rev Esp Med Nucl Imagen Mol 2017. [DOI: 10.1016/j.remnie.2016.11.006] [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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18
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Garcia JR, Cozar M, Baquero M, Fernández Barrionuevo JM, Jaramillo A, Rubio J, Maida G, Soler M, Riera E. The value of 11C-methionine PET in the early differentiation between tumour recurrence and radionecrosis in patients treated for a high-grade glioma and indeterminate MRI. Rev Esp Med Nucl Imagen Mol 2016; 36:85-90. [PMID: 27503425 DOI: 10.1016/j.remn.2016.06.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 04/30/2016] [Revised: 05/30/2016] [Accepted: 06/06/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To evaluate the contribution of 11C-Methionine PET in the early differentiation between tumour recurrence and radionecrosis in patients treated for a high grade glioma. METHOD The study included 30 patients with glioma (III/IV grade) treated with surgery/radiotherapy/chemotherapy (5-8 months) and with an indeterminate MRI. All patients underwent a 11C-Methione PET (within 15 days of MRI) and studies were visually analysed (intensity and morphology of uptake), quantified (SUV max/SUV mean background), and coregistered to MRI (3D-Flair). Patient management was decided by the neuro-oncology committee to clinical and imaging follow-up, second-line treatment, or surgery. RESULTS There were 23 11C-Methionine PET studies visually positive. Morphology of uptake was focal in 15, diffuse in 4, and ring-shaped in 4. Three out of the focal uptake cases underwent resection (Histopathology +). Sixteen underwent second-line therapy (11 responded; 5 progressed). The 4 cases with ring-shaped uptake were followed-up, and progression was found in 2 (true-positive), and disease-free in 2 (follow-up of 6 and 7 months, respectively) (false-positive). Seven out of 11C-Methionine studies PET were visually negative, and all of them were disease-free (follow-up of 3-12 months). SUV lesion/background was 2.79±1.35 in tumour recurrence, and 1.53±0.39 in radionecrosis (P<.05). Taking into account a SUV lesion/background threshold of 2.35, the sensitivity and specificity values were 90.5% and 100%, respectively. CONCLUSION Visual analysis, quantitative and PET/MRI coregistration of 11C-Methionine PET showed their complementary role in patients with indeterminate MRI results, thus allowing early differentiation between tumour recurrence and radionecrosis, and helping in the individual therapy approach.
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Affiliation(s)
- J R Garcia
- CETIR Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España.
| | - M Cozar
- CETIR Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España
| | - M Baquero
- CETIR Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España
| | | | - A Jaramillo
- CETIR Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España
| | - J Rubio
- CETIR Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España
| | - G Maida
- CETIR Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España
| | - M Soler
- CETIR Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España
| | - E Riera
- CETIR Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España
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García J, Baquero M, Bassa P, Soler M, Moragas M, Riera E. Diagnosis of recurrent glioma and antiangiogenic treatment response by 11C-Methionine PET. Rev Esp Med Nucl Imagen Mol 2015. [DOI: 10.1016/j.remnie.2015.09.002] [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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20
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Toro C, Arroyo A, Sarria A, Iglesias N, Enríquez A, Baquero M, de Guevara CL. Shigellosis in Subjects with Traveler's Diarrhea Versus Domestically Acquired Diarrhea: Implications for Antimicrobial Therapy and Human Immunodeficiency Virus Surveillance. Am J Trop Med Hyg 2015; 93:491-6. [PMID: 26195465 PMCID: PMC4559685 DOI: 10.4269/ajtmh.14-0804] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 05/13/2015] [Indexed: 01/04/2023] Open
Abstract
An increase of sexually transmitted shigellosis is currently being reported in developed countries. In addition, travel-related shigellosis can introduce resistant strains that could be disseminated within this new scenario. Epidemiological features and antimicrobial susceptibility of shigellosis depending on where infection was acquired were investigated. From 2008 to 2013, subjects with shigellosis were studied. Patients were classified according to acquisition of Shigella as traveler's diarrhea (TD) or domestically acquired diarrhea (DAD). Ninety cases of shigellosis were identified: 76 corresponding to the TD group and 14 to the DAD group. In the DAD group, most of patients were human immunodeficiency virus (HIV)-positive men who have sex with men (MSM), being shigellosis associated to male sex (P = 0.007) and HIV infection (P < 0.0001). S. sonnei (47.8%) and S. flexneri (42.2%) were the predominant species. The highest resistance was detected for trimethoprim/sulfamethoxazole (SXT) (81.8%), followed by ampicillin (AMP) (37.8%) and ciprofloxacin (CIP) (23.3%). Resistant Shigella strains were more frequent in subjects with TD than those with DAD, although only for CIP the difference was significant (P = 0.034). Continuous monitoring of patients with shigellosis is necessary to control the spread of resistant Shigella strains and for effective therapy. Men with shigellosis who have not traveled to an endemic area should be screened for HIV infection.
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Affiliation(s)
- Carlos Toro
- Service of Microbiology and Parasitology, Carlos III Hospital, Madrid, Spain; IdiPAZ-La Paz University Hospital, Madrid, Spain; Tropical Medicine Unit, Service of Infectious Diseases, Carlos III Hospital, Madrid, Spain
| | - Ana Arroyo
- Service of Microbiology and Parasitology, Carlos III Hospital, Madrid, Spain; IdiPAZ-La Paz University Hospital, Madrid, Spain; Tropical Medicine Unit, Service of Infectious Diseases, Carlos III Hospital, Madrid, Spain
| | - Ana Sarria
- Service of Microbiology and Parasitology, Carlos III Hospital, Madrid, Spain; IdiPAZ-La Paz University Hospital, Madrid, Spain; Tropical Medicine Unit, Service of Infectious Diseases, Carlos III Hospital, Madrid, Spain
| | - Nuria Iglesias
- Service of Microbiology and Parasitology, Carlos III Hospital, Madrid, Spain; IdiPAZ-La Paz University Hospital, Madrid, Spain; Tropical Medicine Unit, Service of Infectious Diseases, Carlos III Hospital, Madrid, Spain
| | - Ana Enríquez
- Service of Microbiology and Parasitology, Carlos III Hospital, Madrid, Spain; IdiPAZ-La Paz University Hospital, Madrid, Spain; Tropical Medicine Unit, Service of Infectious Diseases, Carlos III Hospital, Madrid, Spain
| | - Margarita Baquero
- Service of Microbiology and Parasitology, Carlos III Hospital, Madrid, Spain; IdiPAZ-La Paz University Hospital, Madrid, Spain; Tropical Medicine Unit, Service of Infectious Diseases, Carlos III Hospital, Madrid, Spain
| | - Concepción Ladrón de Guevara
- Service of Microbiology and Parasitology, Carlos III Hospital, Madrid, Spain; IdiPAZ-La Paz University Hospital, Madrid, Spain; Tropical Medicine Unit, Service of Infectious Diseases, Carlos III Hospital, Madrid, Spain
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Santos JC, Baquero M, Barrio-Amorós C, Coloma LA, Erdtmann LK, Lima AP, Cannatella DC. Aposematism increases acoustic diversification and speciation in poison frogs. Proc Biol Sci 2015; 281:20141761. [PMID: 25320164 DOI: 10.1098/rspb.2014.1761] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [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: 11/12/2022] Open
Abstract
Multimodal signals facilitate communication with conspecifics during courtship, but they can also alert eavesdropper predators. Hence, signallers face two pressures: enticing partners to mate and avoiding detection by enemies. Undefended organisms with limited escape abilities are expected to minimize predator recognition over mate attraction by limiting or modifying their signalling. Alternatively, organisms with anti-predator mechanisms such as aposematism (i.e. unprofitability signalled by warning cues) might elaborate mating signals as a consequence of reduced predation. We hypothesize that calls diversified in association with aposematism. To test this, we assembled a large acoustic signal database for a diurnal lineage of aposematic and cryptic/non-defended taxa, the poison frogs. First, we showed that aposematic and non-aposematic species share similar extinction rates, and aposematic lineages diversify more and rarely revert to the non-aposematic phenotype. We then characterized mating calls based on morphological (spectral), behavioural/physiological (temporal) and environmental traits. Of these, only spectral and temporal features were associated with aposematism. We propose that with the evolution of anti-predator defences, reduced predation facilitated the diversification of vocal signals, which then became elaborated or showy via sexual selection.
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Affiliation(s)
- Juan C Santos
- Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4 National Evolutionary Synthesis Center, Suite A200, 2024 West Main St., Durham, NC 27705, USA
| | - Margarita Baquero
- Department of Biological Sciences, Mississippi State University, Starkville, MS 39762, USA
| | | | - Luis A Coloma
- Centro Jambatu de Investigación y Conservación de Anfibios, Fundación Otonga, Geovanni Farina 566 y Baltra, San Rafael, Quito, Ecuador
| | - Luciana K Erdtmann
- Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, Amazonas, Brazil
| | - Albertina P Lima
- Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, Amazonas, Brazil
| | - David C Cannatella
- Department of Integrative Biology and Texas Natural History Collections, University of Texas, 1 University Station C0990, Austin, TX 78712, USA
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22
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García JR, Baquero M, Bassa P, Soler M, Moragas M, Riera E. Diagnosed recurrent glioma and antiangiogenic treatment response by 11C-Methionine PET. Rev Esp Med Nucl Imagen Mol 2015; 34:398-9. [PMID: 26092078 DOI: 10.1016/j.remn.2015.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 04/14/2015] [Accepted: 04/15/2015] [Indexed: 11/29/2022]
Affiliation(s)
- J R García
- Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España.
| | - M Baquero
- Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España
| | - P Bassa
- Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España
| | - M Soler
- Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España
| | - M Moragas
- Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España
| | - E Riera
- Unidad PET, CETIR-ERESA, Esplugues, Barcelona, España
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Alom Poveda J, Baquero M, González-Adalid Guerreiro M. Estadio evolutivo de los pacientes con enfermedad de Alzheimer que acuden a la consulta especializada en España. Estudio EACE. Neurologia 2013; 28:477-87. [DOI: 10.1016/j.nrl.2012.10.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Revised: 08/03/2012] [Accepted: 10/04/2012] [Indexed: 10/27/2022] Open
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Palmeiro A, Toro C, Dhabi G, Amor A, Iglesias N, Trevisi P, Blanco J, Puente S, Baquero M. Diarrhoeagenic Escherichia coli pathotypes in travellers attending a tropical medicine unit in a Spanish hospital. J Med Microbiol 2012; 61:1485-1487. [PMID: 22745136 DOI: 10.1099/jmm.0.044461-0] [Citation(s) in RCA: 2] [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] [Indexed: 11/18/2022] Open
Affiliation(s)
| | - Carlos Toro
- Service of Microbiology, Hospital Carlos III, Madrid, Spain
| | - Ghizlane Dhabi
- E. coli Reference Laboratory (LREC), Department of Microbiology and Parasitology, University of Santiago de Compostela, Lugo, Spain
| | - Aránzazu Amor
- Service of Microbiology, Hospital Carlos III, Madrid, Spain
| | - Nuria Iglesias
- Service of Microbiology, Hospital Carlos III, Madrid, Spain
| | | | - Jorge Blanco
- E. coli Reference Laboratory (LREC), Department of Microbiology and Parasitology, University of Santiago de Compostela, Lugo, Spain
| | - Sabino Puente
- Tropical Medicine, Hospital Carlos III, Madrid, Spain
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25
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Amor A, Toro C, Fernández-Martínez A, Baquero M, Benito A, Berzosa P. Molecular markers in plasmodium falciparum linked to resistance to anti-malarial drugs in samples imported from Africa over an eight-year period (2002-2010): impact of the introduction of artemisinin combination therapy. Malar J 2012; 11:100. [PMID: 22462737 PMCID: PMC3380721 DOI: 10.1186/1475-2875-11-100] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Accepted: 03/30/2012] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Drug resistance is a major problem to control Plasmodium falciparum infection in endemic countries. During last decade, African countries have changed first-line treatment to artemisinin-based combinations therapy (ACT); sulphadoxine-pyrimethamine (SP) is recommended for Intermittent Preventive Therapy (IPT). Molecular markers related to P falciparum resistance were analysed for the period of transition from SP to ACT, in isolates imported from Africa. METHODS A first group of samples was taken in the period between June 2002 and June 2006 (n = 113); a second group in the period between November 2008 and August 2010 (n = 46). Several alleles were analysed by nested PCR-RFLP: 51, 59, 108, 164, in the pfdhfr gene; 436, 437, 540, 581, in the pfdhps gene; 86, 1246, in the pfmdr1 gene and 76, in the pfcrt gene. The prevalence of alleles in the groups was compared with the chi-squared or Fisher's exact tests. RESULTS The pfdhfr N51I, C59R and S108N were over to 90% in the two groups; all samples had the I164. In the pfdhps, 437 G and 581 G, increased up to 80% and 10.9% (p = 0.024), respectively in the second group. The 540 G decreases (24% to 16.%) and the 436A disappears at the end of the follow-up (p = 0.004) in the second group. The 76I-pfcrt stayed over 95% in the two groups. Prevalence of 86Y-pfmdr1 decreased over eight years. CONCLUSIONS Pharmacological pressure affects the resistance strains prevalence. As for SP, the disappearance of 436A and the decrease in 540 G suggest that these mutations are not fixed. On the other hand, studies carried out after ACT introduction show there was a selection of strains carrying the SNPs N86Y, D1246Y in pfmdr1. In this work, the prevalence of pfmdr1- D1246Y is increasing, perhaps as a result of selective pressure by ACT. Continued surveillance is essential to monitor the effectiveness of treatments.
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Affiliation(s)
- Aranzazu Amor
- Department of Microbiology and Parasitology, Hospital Carlos III, C/Sinesio Delgado 10, Madrid 28029, Spain
| | - Carlos Toro
- Department of Microbiology and Parasitology, Hospital Carlos III, C/Sinesio Delgado 10, Madrid 28029, Spain
| | - Amalia Fernández-Martínez
- Malaria Laboratory, National Centre of Tropical Medicine, Carlos III Institute of Health, C/Melchor Fernández Almagro 3, pabellón 13, Madrid 28029, Spain
| | - Margarita Baquero
- Department of Microbiology and Parasitology, Hospital Carlos III, C/Sinesio Delgado 10, Madrid 28029, Spain
| | - Agustín Benito
- Malaria Laboratory, National Centre of Tropical Medicine, Carlos III Institute of Health, C/Melchor Fernández Almagro 3, pabellón 13, Madrid 28029, Spain
| | - Pedro Berzosa
- Malaria Laboratory, National Centre of Tropical Medicine, Carlos III Institute of Health, C/Melchor Fernández Almagro 3, pabellón 13, Madrid 28029, Spain
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26
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Baquero M, Peset V, Burguera JA, Salazar-Cifre A, Boscá-Blasco ME, del Olmo-Rodríguez A, Valero-Merino C, Muñoz-Lacalle RA. [Quality of life in Alzheimer's disease]. Rev Neurol 2009; 49:337-342. [PMID: 19774526] [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: 05/28/2023]
Abstract
INTRODUCTION Quality of life is a concept that is receiving increasing amounts of attention; its assessment complements the traditional clinical evaluation, which is of special interest in areas related with healthcare organisation. Here, we present a study on quality of life in Alzheimer's disease and its relationship with cognitive and functional measures. PATIENTS AND METHODS Quality of life was evaluated by means of the EQ-5D scale in a sample of cases of Alzheimer's disease (diagnosed according to criteria established by the National Institute of Neurologic, Communicative Disorders and Stroke-Alzheimer's Disease and Related Disorders Association) that donated blood samples for the National DNA Bank. The status of the global deterioration scale was determined and a verbal fluency test and the Folstein minimental test were also carried out. A classic analysis, variable contrast by means of chi-square for proportions and Student's t test for measurements were conducted, as well as estimation of r for the regression models in the quantitative variables. The social rate was determined using the software application SPSS v. 11. RESULTS Altogether 141 cases were analysed, with a male to female ratio of 2:1, and a mean age of 76.2 years. Aspects such as personal hygiene, activity and, to a lesser extent, motility are affected in Alzheimer's disease, but pain and anxiety aspects do not seem to be affected. There is a relationship between quality of life, functional scales and cognitive scales. Functional aspects correlate with quality of life better than cognitive ones. CONCLUSIONS Quality of life is evaluated in Alzheimer's disease using general scales, such as EQ-5D. Cognitive aspects do not appear to provide relevant information about quality of life that is not already provided by the functional aspects.
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Affiliation(s)
- M Baquero
- Servicio de Neurología, Hospital Universitario La Fe, Valencia, España.
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27
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Pineda M, R-Palmero A, Baquero M, O'Callaghan M, Aracil A, van der Knaap M, Scheper GC. Vanishing white matter disease associated with progressive macrocephaly. Neuropediatrics 2008; 39:29-32. [PMID: 18504679 DOI: 10.1055/s-2008-1076738] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Vanishing white matter disease (VWM) is one of the most frequent inherited childhood leukoencephalopathies. Five genes have been implicated in this disease ( EIF2B1-5), which encode the five subunits of translation initiation factor eIF2B. The disease has an autosomal recessive mode of inheritance. The age of onset and clinical severity vary widely. The diagnosis is based on magnetic resonance imaging (MRI) findings and is confirmed by molecular studies. We describe an affected female patient with a common and a novel mutation of the EIF2B5 gene, who demonstrated a progressive neurological and radiological deterioration. An unusual feature was her striking macrocephaly. She had an early clinical onset at two years of age and is currently still alive at 26 years of age.
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Affiliation(s)
- M Pineda
- Neurology Department, Hospital Sant Joan de Deu and Center for Biomedical Research on Rare Diseases (CIBERER), Barcelona, Spain.
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De Juliàn R, Ruiz J, Lago M, Puente S, Baquero M, Gascón J, Gónzalez-Lahoz J. P1510 Traveller diarrhoea. Aetiological study in a tropical medicine unit. Int J Antimicrob Agents 2007. [PMCID: PMC7135132 DOI: 10.1016/s0924-8579(07)71349-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Baquero M. [Access to the neurologist]. Rev Neurol 2007; 44:189; author reply 190-1. [PMID: 17285531] [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: 05/13/2023]
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Oliveira JRM, Sobrido MJ, Spiteri E, Hopfer S, Meroni G, Petek E, Baquero M, Geschwind DH. Analysis of candidate genes at the IBGC1 locus associated with idiopathic basal ganglia calcification ("Fahr's disease"). J Mol Neurosci 2007; 33:151-154. [PMID: 17917073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2007] [Revised: 11/30/1999] [Accepted: 03/09/2007] [Indexed: 05/25/2023]
Abstract
Basal ganglia calcification (striatopallidodentate calcifications) can be caused by several systemic and neurological disorders. Familial Idiopathic Basal Ganglia Calcification (IBGC, "Fahr's disease"), is characterized by basal ganglia and extrabasal ganglia calcifications, parkinsonism and neuropsychiatric symptoms. Because of an increased use of neuroimaging procedures, calcifications of the basal ganglia are visualized more often and precociously. In 1999, a major American family with IBGC was linked to a locus on chromosome 14q (IBGC1). Another small kindred, from Spain, has also been reported as possibly linked to this locus. Here we report the main findings of the first 30 candidate genes sequenced at the IBGC1 locus during the process of searching for a mutation responsible for familial IBGC. During the sequencing process, we identified a heterozygous nonsynonymous single nucleotide polymorphism (exon 20 of the MGEA6/c-TAGE gene) shared by the affected and not present in the controls. This SNP was randomly screened in the general population (348 chromosomes) in a minor allele frequency to 0.0058 (two heterozygous among 174 subjects). Another variation in this gene, in the exon 9, was found in the Spanish family. However, this variation was extremely common in the general population. Functional and population studies are necessary to fully access the implications of the MGEA6 gene in familial IBGC, and a complete sequencing of the IBGC1 locus will be necessary to define a gene responsible for familial IBGC.
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Affiliation(s)
- J R M Oliveira
- The Neurogenetics Program and Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1769, USA
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Toro C, Caballero ML, Baquero M, García-Samaniego J, Casado I, Martínez P, Alarcón T, Moneo I. Seropositivity to a major allergen of Anisakis simplex, Ani s 1, in dyspeptic patients with Helicobacter pylori infection: histological and laboratory findings and clinical significance. Clin Microbiol Infect 2006; 12:453-8. [PMID: 16643522 DOI: 10.1111/j.1469-0691.2006.01376.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] [Indexed: 01/13/2023]
Abstract
Previous studies have demonstrated a high prevalence of seropositivity to the Ani s 1 protein in dyspeptic patients with Helicobacter pylori infection, but it is not known whether this represents episodes of anisakiasis misdiagnosis or previous exposure to the parasite without clinical relevance. To investigate the clinical significance of seropositivity to the Ani s 1 protein, a cohort study was performed with 87 consecutive dyspeptic patients who were treated for H. pylori infection. Fourteen (16.5%) patients were seropositive for the Ani s 1 protein, which was associated with the consumption of uncooked fish (p 0.0002). There were no differences in histological findings between subjects seropositive or seronegative for Ani s 1, but seropositive patients had increased eosinophil and basophil leukocyte counts (p < 0.05). Anti-Ani s 1 IgE was associated with a lack of improvement in the group of patients with non-ulcer dyspepsia after successful eradication of H. pylori (p 0.016). Thus, in at least a subset of patients with H. pylori infection, seropositivity to Ani s 1 could have clinical relevance. In addition, these data highlight that only anisakiasis associated with severe allergic or gastric symptoms is currently being diagnosed.
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Affiliation(s)
- C Toro
- Services of Infectious Diseases, Hospital Carlos III, C/Sinesio Delgado 10, 28029 Madrid, Spain.
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32
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Oliveira JRM, Spiteri E, Sobrido MJ, Hopfer S, Klepper J, Voit T, Gilbert J, Wszolek ZK, Calne DB, Stoessl AJ, Hutton M, Manyam BV, Boller F, Baquero M, Geschwind DH. Genetic heterogeneity in familial idiopathic basal ganglia calcification (Fahr disease). Neurology 2005; 63:2165-7. [PMID: 15596772 DOI: 10.1212/01.wnl.0000145601.88274.88] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Familial idiopathic basal ganglia calcification (IBGC, Fahr disease) is an inherited neurologic condition characterized by basal ganglia and extra-basal ganglia brain calcifications, parkinsonism, and neuropsychiatric symptoms. The authors examined six families for linkage to the previously identified genetic locus (IBGC1) located on chromosome 14q. The authors found evidence against linkage to IBGC1 in five of the six families supporting previous preliminary studies demonstrating genetic heterogeneity in familial IBGC.
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Affiliation(s)
- J R M Oliveira
- Neurogenetics Program, Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1769, USA
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Padial MM, Subirats M, Puente S, Lago M, Crespo S, Palacios G, Baquero M. Sensitivity of laser light depolarization analysis for detection of malaria in blood samples. J Med Microbiol 2005; 54:449-452. [PMID: 15824421 DOI: 10.1099/jmm.0.45650-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [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: 11/18/2022] Open
Abstract
Automated light depolarization analysis could be a useful tool for diagnosing malarial infections. This work discusses the results of a diagnostic efficacy study on 411 samples from patients with suspected malaria infection performed with a Cell-Dyn 4000 analyser. Light dispersed at 90° and depolarized can be used for identifying and counting eosinophils. However, other cell populations with depolarizing capacity occur in malarial samples; these result from leukocytes ingesting haemozoin that is derived from the degradation of the haem group of haemoglobin performed by the parasite. A sensitivity of 72 % and specificity of 98 % were recorded, with positive and negative predictive values of 78 % and 97 %, respectively. Although the sensitivity level of the automated light depolarization analysis is not adequate to replace the existing methods for the diagnosis of parasitic diseases, it could alert clinicians to unsuspected infections by parasites, particularly those from the genus Plasmodium.
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Affiliation(s)
- Manuel Martínez Padial
- Laboratory of Microbiology1 and Department of Infectious Diseases2, Hospital Carlos III, Madrid, Spain 3Megalab Laboratories, Madrid, Spain 4Abbott Diagnostics Division, Costa Brava 13, 28034 Madrid, Spain
| | - Mercedes Subirats
- Laboratory of Microbiology1 and Department of Infectious Diseases2, Hospital Carlos III, Madrid, Spain 3Megalab Laboratories, Madrid, Spain 4Abbott Diagnostics Division, Costa Brava 13, 28034 Madrid, Spain
| | - Sabino Puente
- Laboratory of Microbiology1 and Department of Infectious Diseases2, Hospital Carlos III, Madrid, Spain 3Megalab Laboratories, Madrid, Spain 4Abbott Diagnostics Division, Costa Brava 13, 28034 Madrid, Spain
| | - Mar Lago
- Laboratory of Microbiology1 and Department of Infectious Diseases2, Hospital Carlos III, Madrid, Spain 3Megalab Laboratories, Madrid, Spain 4Abbott Diagnostics Division, Costa Brava 13, 28034 Madrid, Spain
| | - Santiago Crespo
- Laboratory of Microbiology1 and Department of Infectious Diseases2, Hospital Carlos III, Madrid, Spain 3Megalab Laboratories, Madrid, Spain 4Abbott Diagnostics Division, Costa Brava 13, 28034 Madrid, Spain
| | - Gonzalo Palacios
- Laboratory of Microbiology1 and Department of Infectious Diseases2, Hospital Carlos III, Madrid, Spain 3Megalab Laboratories, Madrid, Spain 4Abbott Diagnostics Division, Costa Brava 13, 28034 Madrid, Spain
| | - Margarita Baquero
- Laboratory of Microbiology1 and Department of Infectious Diseases2, Hospital Carlos III, Madrid, Spain 3Megalab Laboratories, Madrid, Spain 4Abbott Diagnostics Division, Costa Brava 13, 28034 Madrid, Spain
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Abstract
Low levels of high-density lipoprotein cholesterol (HDL-C) show a consistent relationship with the development of atherosclerosis. The underlying mechanisms are not well understood, but recent studies in subjects with primary hypoalphalipoproteinemia suggest that this could represent a proinflammatory condition. To better assess the link between HDL-C levels and C-reactive protein levels and the possible role of chronic infections as putative mediators of this relationship, we studied a population sample with nonselected causes of hypoalphalipoproteinemia. Eighty-six consecutive patients with HDL-C levels below 40 mg/dL who attend our lipid clinic and 86 control subjects with normal concentrations matched for gender, age, smoking habit, and weight were included in the study. Mean HDL-C levels were 34 +/- 3.9 and 55.4 +/- 8.8 mg/dL for subjects with hypoalphalipoproteinemia and control subjects, respectively. C-reactive protein concentrations were increased in case patients as compared with control subjects (2.13 +/- 2.0 vs 1.52 +/- 1.8 mg/L; P = .025). The prevalence of herpes simplex virus type 1, cytomegalovirus, Chlamydia pneumoniae , and Helicobacter pylori infections did not differ between the 2 groups. Although a possible confounding variable could be a degree of insulin resistance within the group of patients with low HDL-C levels, our results indicate that C-reactive protein levels are increased in subjects with nonselected hypoalphalipoproteinemia and that chronic infections do not appear to mediate this relationship.
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Affiliation(s)
- Jose M Mostaza
- Centro de Investigaciones Clinicas, Unidad de Arteriosclerosis, Hospital Carlos III, 28029 Madrid, Spain.
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Gutiérrez M, Tajada P, Alvarez A, De Julián R, Baquero M, Soriano V, Holguín A. Prevalence of HIV-1 non-B subtypes, syphilis, HTLV, and hepatitis B and C viruses among immigrant sex workers in Madrid, Spain. J Med Virol 2004; 74:521-7. [PMID: 15484270 DOI: 10.1002/jmv.20208] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [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: 11/08/2022]
Abstract
Sexually transmitted disease (STD) remains a major public health challenge in developed countries, exacerbated by the advent of the HIV epidemic. The objectives of this study were to assess the prevalence of serological markers of syphilis, HIV-1/2, HTLV-I/II, HBV, and HCV infections among immigrant sex workers in Madrid, Spain and to characterize the HIV-1 variants in seropositive individuals. Sera from 762 immigrant commercial sex workers (75.3% from sub-Saharan Africa, 18.2% from South America, and 6.4% from Eastern Europe) were collected between 1998 and 2003 in Madrid and examined. Antibody detection was performed by screening assays (RPR, ELISAs) and confirmed by FTA-Abs, LIAs and Western-blot tests. HIV-1 subtyping was carried out by phylogenetic analyses of the protease and envelope genes. Antibodies to HIV-1 were found in 5.2%, while 3.5% tested positive for HBsAg, 3% for syphilis antibodies, 0.8% for HCV antibodies, and 0.2% for HTLV-I antibodies. None were reactive for HIV-2 or HTLV-II antibodies. HIV-1 seroprevalence among Africans and Ecuadorians was 4.5 and 10.9%, respectively. All HIV-1 seropositive Ecuadorians were transsexual men, and 28.6% had active syphilis infection. Up to 80% of HIV-1 positive specimens were characterized as non-B subtypes, with subtypes G, A, and G/A recombinants being the most frequent among African individuals. In contrast, South Americans with HIV-1 infection carried exclusively subtype B variants. A relatively high proportion of immigrant sex workers in Madrid were infected with HIV-1 and syphilis, whereas infections with hepatitis viruses or HTLV were uncommon.
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36
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Montull-Ferrer C, Peri-Nogués J, Mercader-Sobrequés JM, Aracil-Martínez MA, Baquero M. [Central nervous system disorders caused by the herpes virus. Magnetic resonance imaging findings]. Rev Neurol 2004; 39:95-6. [PMID: 15257534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
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37
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Toro C, Caballero ML, Baquero M, García-Samaniego J, Casado I, Rubio M, Moneo I. High prevalence of seropositivity to a major allergen of Anisakis simplex, Ani s 1, in dyspeptic patients. Clin Diagn Lab Immunol 2004; 11:115-8. [PMID: 14715556 PMCID: PMC321343 DOI: 10.1128/cdli.11.1.115-118.2004] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Finding evidence of anisakidosis requires invasive methods. We have developed a serological assay based on the detection of an immunoglobulin E (IgE) specifically directed against Ani s 1 protein, a major parasite allergen of Anisakis simplex, which has shown a high level of accuracy in the diagnosis of anisakidosis. We used this tool to determine the prevalence of anti-Ani s 1 IgE in dyspeptic patients and to investigate if its seropositivity could be related to epidemiological factors other than raw fish consumption. A total of 174 dyspeptic patients who submitted to upper digestive tract endoscopy were studied. Specific IgE against Ani s 1 was determined by immunoblotting. Quantitative information on smoking, alcohol consumption, and fish consumption as well as a history of gastric surgery was recorded. Twenty-four (13.8%) patients were seropositive for Ani s 1 protein. The seroprevalence of anti-Ani s 1 IgE increased with age in patients who were less than 62 years old (P = 0.047). Seropositivity to Ani s 1 was associated with the consumption of fish in vinegar (P < 0.001), raw fish (P = 0.001), and smoked fish (P = 0.007). There was no relationship between anti-Ani s 1 IgE seropositivity and the number of cigarettes smoked (P = 0.098) or alcohol intake (P = 0.179). Five patients had undergone previous gastric surgery, and three of those patients were seropositive for Ani s 1 (P = 0.019). In multivariate analysis, the consumption of fish in vinegar (P = 0.006), raw fish (P = 0.017), and smoked fish (P = 0.002) and a history of gastric surgery (P = 0.005) were independent factors associated with anti-Ani s 1 IgE detection. In conclusion, at present, anisakidosis might frequently be underdiagnosed, and it might have a clinical role in patients with upper dyspeptic symptoms. Uncooked-fish ingestion and previous gastric surgery were associated with seropositivity for Ani s 1 protein.
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Affiliation(s)
- Carlos Toro
- Services of Infectious Diseases, Hospital Carlos III and Department of Medicine, European University of Madrid, Madrid, Spain.
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Crespo S, Palacios G, Scott S, Lago M, Puente S, Martínez M, Baquero M, Subirats M. Abnormal depolarizing patterns in three patients with filarial infection. Ann Hematol 2004; 83:313-5. [PMID: 15064860 DOI: 10.1007/s00277-003-0786-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2003] [Accepted: 09/02/2003] [Indexed: 11/25/2022]
Abstract
Several authors have described a particular potential of automated depolarization analysis in detecting malaria infection as part of the routine full blood count (FBC) performed by the Cell-Dyn 4000 analyzer. In these cases, abnormal depolarizing patterns are due to the presence of leukocyte-associated malaria hemozoin, a pigment which depolarizes the laser light. In this report we describe samples from three individual patients who did not have malaria infection but showed abnormal depolarizing events. Further investigation determined that these samples were from patients infected by the nematode Mansonella perstans. The observed depolarizing pattern consisted of a normal depolarizing eosinophil population and in addition an abnormal depolarizing population that showed a close "linear" relationship between "granularity" (90 degrees depolarization) and "lobularity" (90 degrees polarization). This atypical population was smaller than normal leukocytes and thus clearly different from the patterns associated with malaria infection. Abnormal depolarization patterns of M. perstans clearly do not reflect leukocyte-associated malaria hemozoin. It is possible however that the erythrocyte-lysing agent used to facilitate leukocyte analysis by the instrument may have caused microfilaria fragmentation and thus the distinctive "straight-line" features of the abnormal scatter plots
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Affiliation(s)
- S Crespo
- Megalab Laboratories, Madrid, Spain
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39
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Baquero M, Blasco R, Campos-García A, Garcés M, Fages EM, Andreu-Català M. [Descriptive study of behavioural disorders in mild cognitive impairment]. Rev Neurol 2004; 38:323-6. [PMID: 14997455] [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: 04/29/2023]
Abstract
INTRODUCTION Mild cognitive impairment (MCI) is defined as an abnormality in cognitive function not provoking a noticeable disability in activities of daily living in the affected person. In a group of patients with MCI, we propose to observe and to quantify the presence of behavioral disorders, using the neuropsychiatric inventory (NPI). PATIENTS AND METHODS NPI is a known instrument in evaluation of this kind of disorders in patients with dementia, and it is a semi structured interview with a relevant informer or relative to the patient. NPI was applied to a series of 100 cases (61 women and 39 men) of MCI, diagnosed as usual in our settings. Mean age was 74.3 +/- 10 years, and mean MEC (Spanish modified version of MMSE) 25.57 +/- 4.2 (over a maximum of 35 points). RESULTS Most prevalent disorder was depression, in 36 % of cases, and other frequent findings were irritability (35%), anxiety (24%) and apathy (19%). In some cases, agitation (4%), abnormal motor behavior (3%) and delusions (1%) were detected. Hallucination, disinhibition and euphoria or elation were not detected in this series. CONCLUSION Data show a certain similarity with occidental culture environment, globally considered. The presence of behavioral and psychological disorders in patients with MCI could be a marker for later development of dementia. NPI can be a usable tool when detection and evaluation of these symptoms is required.
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Affiliation(s)
- M Baquero
- Unidad de Neuropsicología y Demencias, Servicio de Neurología, Hospital Universitario La Fe, Valencia, España.
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Montull Ferrer C, Peri Nogués J, Mercader Sobrequés JM, Aracil Martínez MA, Baquero M. Afectación del sistema nervioso central por virus del herpes. Hallazgos por resonancia magnética. Rev Neurol 2004. [DOI: 10.33588/rn.3901.2002574] [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: 11/24/2022]
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41
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Toro C, García-Samaniego J, Alarcón T, Baquero M. [Association among anti-CagA antibody detection, antibiotic susceptibility, and peptic ulcer in patients with Helicobacter pylori infection]. Enferm Infecc Microbiol Clin 2003; 21:137-41. [PMID: 12586018 DOI: 10.1016/s0213-005x(03)72902-4] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
INTRODUCTION The aim of this study was to determine the relationship among antibodies against virulence factors (CagA and VacA), clinical status and primary resistance in dyspeptic patients with Helicobacter pylori infection. METHODS Ninety-eight adult patients with Helicobacter pylori infection who underwent gastric endoscopy for dyspepsia were studied. Specific serum IgG antibodies against CagA and VacA proteins were detected by Western-blot (Helicoblot 2.0). Minimum inhibitory concentrations of metronidazole, amoxicillin, tetracycline and clarithromycin were determined with the E-test. RESULTS Thirty-nine patients presented peptic ulcer disease and 59 had non-ulcer dyspepsia. CagA protein was detected in 63 patients, and VacA protein in 52 subjects, and both were significantly associated with peptic ulcers (p 5 0.034 and p 5 0.029, respectively). Susceptibility results showed 38.8% of strains resistant to metronidazole and 10.3% resistant to clarithromycin. No resistance to amoxicillin or tetracycline was found. Susceptibility to clarithromycin was more frequent in ulcer patients than in non-ulcer dyspepsia patients (p 5 0.046). CagA protein was more frequent in patients with clarithromycin-sensitive strains (p < 0.001). CONCLUSION Antibodies against CagA protein were associated with higher antibiotic susceptibility in patients with ulcers or non-ulcer dyspepsia. Thus, anti-CagA antibody detection could be a useful marker of favorable prognosis with antibiotic treatment.
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Affiliation(s)
- Carlos Toro
- Servicio de Enfermedades Infecciosas. Hospital Carlos III. Madrid. España.
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42
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Rubio JM, Buhigas I, Subirats M, Baquero M, Puente S, Benito A. Limited level of accuracy provided by available rapid diagnosis tests for malaria enhances the need for PCR-based reference laboratories. J Clin Microbiol 2001; 39:2736-7. [PMID: 11427610 PMCID: PMC88226 DOI: 10.1128/jcm.39.7.2736-2737.2001] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [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: 11/20/2022] Open
Abstract
The rise of imported malaria cases and the high fatality rate in Europe make the search for new and easy diagnostic methods necessary. Rapid diagnosis tests (RDTs) are, in part, developed to cover the lack of diagnosis experience. Unfortunately, our data suggest that the accuracy of RDTs is insufficient and could increase the number of incorrect malaria diagnoses.
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Affiliation(s)
- J M Rubio
- Department of Parasitology, National Center for Microbiology, Carlos III National Institute of Health, Madrid, Spain
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43
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Toro C, García-Samaniego J, Carbó J, Iñiguez A, Alarcón T, López-Brea M, Baquero M. [Prevalence of primary Helicobacter pylori resistance to eight antimicrobial agents in a hospital in Madrid]. Rev Esp Quimioter 2001; 14:172-6. [PMID: 11704771] [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: 02/22/2023]
Abstract
The aim of this study was to determine the prevalence of primary Helicobacter pylori resistance, and to investigate the relationship with factors such as age and sex. During 1998, 106 H. pylori strains collected from dyspeptic patients who had had no previous H. pylori treatment were studied. The minimun inhibitory concentrations of metronidazole, amoxicillin, clarithromycin, tetracycline, azithromycin, clindamycin, cefotaxime and ciprofloxacin were determined by E-test.((R)). The overall prevalence of primary metronidazole resistance was 40.6%. Although it was more frequent in women than in men (44.4% vs. 37.7%), the difference was significant only in the women who were under 45 years of age. For the rest of the antibiotics, the primary resistance rates were the following: clarithromycin 9.5%, azithromycin 10.3%, clindamycin 13.1%, and ciprofloxacin 7.9%. No resistance to tetracycline and b-lactam antibiotics was found. Clarithromycin and amoxicillin were the most active compounds of the macrolides and b-lactams studied, respectively.
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Affiliation(s)
- C Toro
- Servicios de Microbiología y, Hospital Carlos III, Madrid, Spain
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44
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Barba I, Moreno A, Martinez-Pérez I, Tate AR, Cabañas ME, Baquero M, Capdevila A, Arús C. Magnetic resonance spectroscopy of brain hemangiopericytomas: high myoinositol concentrations and discrimination from meningiomas. J Neurosurg 2001; 94:55-60. [PMID: 11147898 DOI: 10.3171/jns.2001.94.1.0055] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.1] [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: 11/06/2022]
Abstract
OBJECT Hemangiopericytomas are a rare type of brain tumor that are very similar to meningiomas in appearance and symptoms but require different treatment. It is not normally possible to distinguish between them by using magnetic resonance (MR) imaging and computerized tomography studies. However, discrimination may be possible by using in vivo MR spectroscopy (MRS) because the biochemical composition of these two lesions is different. The goal of this study was to describe the use of MRS in discriminating between these similar tumor types. METHODS In vivo MRS spectra were acquired in 27 patients (three with hemangiopericytomas and 24 with meningiomas) by using a single-voxel proton brain examination system at 1.5 teslas with short- (20-msec) and long- (135-msec) echo times. In addition, brain biopsy specimens obtained by open craniotomy were frozen within 5 minutes of resection and stored in liquid nitrogen until they were used. The specimens were powdered, extracted with perchloric acid, redissolved in 2H2O2 and high-resolution in vitro MRS was used at 9.4 teslas to record their spectra. CONCLUSIONS In this study the authors show that hemangiopericytomas could be clearly distinguished from meningiomas because they have a larger peak at 3.56 ppm. Measurements of extracts of the tumors and comparison of spectra acquired with MRS at long- (135-msec) and short- (20-msec) echo times established that this was due to the much higher levels of myoinositol in the hemangiopericytomas.
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Affiliation(s)
- I Barba
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
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Alvarez P, Enríquez AM, Toro C, Martínez I, Buhigas I, de Miguel S, Lago M, Puente S, Del Palacio A, Baquero M. [Three cases of imported dermatomycosis by Scytalidium dimidiatum]. Rev Iberoam Micol 2000; 17:102-6. [PMID: 15762802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Abstract
Scytalidium dimidiatum dermatomycosis are usually reported in tropical and subtropical countries. Some cases in Spain have been diagnosed due to the increasing number of immigrants from these areas. We herein describe three new cases of S. dimidiatum infections detected in Madrid. Two patients were from Guinea Ecuatorial and the third from Angola. We also report the first case of S. dimidiatum infection in a HIV patient in Spain. Clinical and epidemiological characteristics of S. dimidiatum infections reported in Spain are discussed.
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Affiliation(s)
- P Alvarez
- Servicio de Microbiología del Hospital Carlos III, Madrid, España
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Toro C, Valencia E, Blanco J, Enríquez A, Baquero M. [Escherichia coli O157:H7 in patients infected with the human immunodeficiency virus: presentation of a case]. Enferm Infecc Microbiol Clin 2000; 18:366-7. [PMID: 11109734] [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: 02/18/2023]
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47
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Toro C, Enríquez A, Moreno V, Alvarez P, Buhigas I, Baquero M. [Isolation of Roseomonas gilardii in a patient with AIDS]. Enferm Infecc Microbiol Clin 2000; 18:250-1. [PMID: 10974778] [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: 02/17/2023]
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48
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Escaned J, Hernandez R, Baquero M, Goicolea J, Alfonso F, Fernandez-Ortiz A, Banuelos C, Macaya C. Double stenting as a treatment for stent collapse in the left main coronary artery. J Invasive Cardiol 1999; 11:305-8. [PMID: 10745537] [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: 02/16/2023]
Abstract
We report on a case of double stent implantation in the left main coronary artery due to collapse of the first implanted stent. The case illustrates a complication of stenting presumably dictated by the specific characteristics of left main disease, and the feasibility and good long-term results of double stenting in this situation.
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Affiliation(s)
- J Escaned
- Unidad de Cardiologia Intervencionista, Hospital Universitario San Carlos, Prof. Martin Lagos s/n, 28040 Madrid, Spain
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Muñoz E, Corcuera MT, Roldán M, Gómez F, Picazo A, Baquero M, Alonso MJ. Comparative study of microbiological and histopathological techniques used for the detection of Helicobacter pylori. Eur J Histochem 1999; 42:297-302. [PMID: 10068902] [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: 02/11/2023] Open
Abstract
This study evaluates the sensitivity, specificity and predictive values of several techniques commonly used for the detection of Helicobacter pylori in an analysis of 105 biopsy specimens (gastric and duodenal). For comparative purposes, the techniques investigated were divided into 2 groups: histopathological and microbiological. The former included hematoxylin-eosin and Giemsa stains, a Gram stain modified for use in tissue, and immunohistochemical techniques. Microbiological analysis was performed using culture, the urease test and the conventional Gram stain. The immunohistochemical techniques proved to be the most sensitive (93%). The modified Gram stain was sufficiently sensitive (92%) and specific (97%) for the detection of the bacterium. When combined with a microbiological technique such as the urease test, this stain showed increased sensitivity (96%) but its specificity was reduced to 94%. This combination of tests is recommended for the detection of H. pylori in biopsy specimens since it is easily performed at low cost and gives excellent results. For economical reasons, it is suggested that the use of immunohistochemical techniques should be restricted to specific cases.
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Affiliation(s)
- E Muñoz
- Department of Cellular Biology and Pathology of the University of Salamanca, Spain
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50
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Gómez-Hernando C, Toro C, Gutiérrez M, Enríquez A, Baquero M. Isolation of Alloiococcus otitidis from the external ear in children. Eur J Clin Microbiol Infect Dis 1999; 18:69-70. [PMID: 10192719 DOI: 10.1007/s100960050230] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- C Gómez-Hernando
- Sección de Microbiología, Centro de Investigaciones Clínicas, Instituto Carlos III, Sinesio Delgado, Madrid, Spain
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