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Vaamonde D, Hackney AC, Garcia Manso JM, Arriaza Ardiles E, Vaquero M. Birth sex ratio in the offspring of professional male soccer players: influence of exercise training load. Hum Reprod 2021; 35:2613-2618. [PMID: 33006607 DOI: 10.1093/humrep/deaa225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 07/26/2020] [Indexed: 11/14/2022] Open
Abstract
STUDY QUESTION Can the exercise training load of elite male athletes influence the sex ratio of their offspring? SUMMARY ANSWER This is the first study assessing the influence of exercise training load on the offspring sex ratio of children from male professional athletes, observing a bias toward more females being born as a result of both high-intensity and high-volume loads, with intensity having the greatest effect. WHAT IS KNOWN ALREADY There is a relatively constant population sex ratio of males to females among various species; however, certain events and circumstances may alter this population sex ratio favoring one sex over the other. STUDY DESIGN, SIZE, DURATION Observational, descriptive cross-sectional study with a duration of 3 months. PARTICIPANTS/MATERIALS, SETTING, METHODS Seventy-five male professional soccer players from First Division soccer teams. Offspring variables were sex of the offspring, number of children and order of birth. Exercise training variables were volume and intensity. MAIN RESULTS AND THE ROLE OF CHANCE Total offspring was 122 children (52 males (42.6%), 70 females (57.4%)). Analysis revealed that increase in either the volume (P < 0.001) or intensity (P < 0.001) of training by the players shifted the birth offspring ratio more toward females. Within the sample of females born, more births (i.e. number) were observed as a consequence of training at the highest intensity (45 out of 70; P < 0.001), no such pattern occurred within males (P > 0.05). When female versus male births were compared within each intensity, only the high-intensity comparison was significant (45 (75%) females vs 15 (25%) males, P < 0.001). LIMITATIONS, REASONS FOR CAUTION While this is the first study assessing differences in the sex ratio of the offspring of male athletes (i.e. soccer players), we acknowledge there are limitations and confounders within our approach; e.g. small sample size, ethnic background and variations in the timing of intercourse relative to ovulation as well as in sex hormone levels. As such, we propose that future research is needed to confirm or refute our findings. It is recommended that such work expand on the measurements obtained and conduct direct assessment of sperm characteristics. WIDER IMPLICATIONS OF THE FINDINGS The findings of the study support the fact that different stressors on the body may alter the sex of the offspring. While in the present study the stressor is the excessive training load of soccer players, other events may lead to similar results. The bias in offspring sex ratio may have important implications for demography and population dynamics, as well as genetic trait inheritance. STUDY FUNDING/COMPETING INTEREST(S) There is no funding nor competing interests. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- D Vaamonde
- Department of Morphological Sciences, School of Medicine and Nursing, Universidad de Cordoba, Cordoba, Spain.,International Network on Physical Exercise and Fertility (INPEF), Córdoba, Spain
| | - A C Hackney
- International Network on Physical Exercise and Fertility (INPEF), Córdoba, Spain.,Department of Exercise & Sport Science, University of North Carolina, Chapel Hill, NC, USA
| | - J M Garcia Manso
- International Network on Physical Exercise and Fertility (INPEF), Córdoba, Spain.,Department of Physical Education, School of Physical Activity and Sports, Universidad de Las Palmas de Gran Canaria, Las Palmas, Canary Islands, Spain
| | - E Arriaza Ardiles
- Center of Advanced Studies, Universidad de Playa Ancha, Valparaiso, Chile
| | - M Vaquero
- Department of Public Health, School of Medicine and Nursing, Universidad de Córdoba, Córdoba, Spain.,IMIBIC Clinical and Epidemiological Research in Primary Care, Córdoba, Spain
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González-Fortes G, Tassi F, Trucchi E, Henneberger K, Paijmans JLA, Díez-Del-Molino D, Schroeder H, Susca RR, Barroso-Ruíz C, Bermudez FJ, Barroso-Medina C, Bettencourt AMS, Sampaio HA, Grandal-d'Anglade A, Salas A, de Lombera-Hermida A, Fabregas Valcarce R, Vaquero M, Alonso S, Lozano M, Rodríguez-Alvarez XP, Fernández-Rodríguez C, Manica A, Hofreiter M, Barbujani G. A western route of prehistoric human migration from Africa into the Iberian Peninsula. Proc Biol Sci 2020; 286:20182288. [PMID: 30963949 DOI: 10.1098/rspb.2018.2288] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Being at the western fringe of Europe, Iberia had a peculiar prehistory and a complex pattern of Neolithization. A few studies, all based on modern populations, reported the presence of DNA of likely African origin in this region, generally concluding it was the result of recent gene flow, probably during the Islamic period. Here, we provide evidence of much older gene flow from Africa to Iberia by sequencing whole genomes from four human remains from northern Portugal and southern Spain dated around 4000 years BP (from the Middle Neolithic to the Bronze Age). We found one of them to carry an unequivocal sub-Saharan mitogenome of most probably West or West-Central African origin, to our knowledge never reported before in prehistoric remains outside Africa. Our analyses of ancient nuclear genomes show small but significant levels of sub-Saharan African affinity in several ancient Iberian samples, which indicates that what we detected was not an occasional individual phenomenon, but an admixture event recognizable at the population level. We interpret this result as evidence of an early migration process from Africa into the Iberian Peninsula through a western route, possibly across the Strait of Gibraltar.
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Affiliation(s)
- G González-Fortes
- 1 Department of Life Science and Biotechnology, University of Ferrara , 44121 Ferrara , Italy
| | - F Tassi
- 1 Department of Life Science and Biotechnology, University of Ferrara , 44121 Ferrara , Italy
| | - E Trucchi
- 1 Department of Life Science and Biotechnology, University of Ferrara , 44121 Ferrara , Italy
| | - K Henneberger
- 2 Institute for Biochemistry and Biology, University of Potsdam , 14476 Potsdam OT Golm , Germany
| | - J L A Paijmans
- 2 Institute for Biochemistry and Biology, University of Potsdam , 14476 Potsdam OT Golm , Germany
| | - D Díez-Del-Molino
- 3 Department of Bioinformatics and Genetics, Swedish Museum of Natural History , 104 05 Stockholm , Sweden
| | - H Schroeder
- 4 Section for Evolutionary Genomics, Natural History Museum of Denmark, University of Copenhagen , 1353 Copenhagen K , Denmark
| | - R R Susca
- 1 Department of Life Science and Biotechnology, University of Ferrara , 44121 Ferrara , Italy
| | - C Barroso-Ruíz
- 5 Fundación Instituto de Investigación de Prehistoria y Evolución Humana (FIPEH) , 14900 Lucena, Córdoba , Spain
| | - F J Bermudez
- 5 Fundación Instituto de Investigación de Prehistoria y Evolución Humana (FIPEH) , 14900 Lucena, Córdoba , Spain
| | - C Barroso-Medina
- 5 Fundación Instituto de Investigación de Prehistoria y Evolución Humana (FIPEH) , 14900 Lucena, Córdoba , Spain
| | - A M S Bettencourt
- 6 Landscape, Heritage and Territory Laboratory-Lab2PT, Department of History, University of Minho , 4700-057 Braga , Portugal
| | - H A Sampaio
- 7 Landscape, Heritage and Territory Laboratory-Lab2PT, Department of Hospitality and Tourism, Polytechnic Institute of Cávado and Ave , Barcelos , Portugal
| | - A Grandal-d'Anglade
- 8 Universitary Institute of Geology, University of Coruña , A Coruña 15081 , Spain
| | - A Salas
- 9 Unidade de Xenética, Instituto de Ciencias Forenses, Universidade de Santiago de Compostela, and GenPoB (IDIS-SERGAS) , Galicia , Spain
| | - A de Lombera-Hermida
- 10 Department of History GEPN-AAT, University of Santiago de Compostela , 15782 Santiago de Compostela , Spain
| | - R Fabregas Valcarce
- 10 Department of History GEPN-AAT, University of Santiago de Compostela , 15782 Santiago de Compostela , Spain
| | - M Vaquero
- 11 Department of History and History of Art, Rovira i Virgili University , 43002 Tarragona , Spain.,12 Institut Català de Paleoecologia Humana i Evolució Social (IPHES) , 43007 Tarragona , Spain
| | - S Alonso
- 11 Department of History and History of Art, Rovira i Virgili University , 43002 Tarragona , Spain.,12 Institut Català de Paleoecologia Humana i Evolució Social (IPHES) , 43007 Tarragona , Spain
| | - M Lozano
- 11 Department of History and History of Art, Rovira i Virgili University , 43002 Tarragona , Spain.,12 Institut Català de Paleoecologia Humana i Evolució Social (IPHES) , 43007 Tarragona , Spain
| | - X P Rodríguez-Alvarez
- 11 Department of History and History of Art, Rovira i Virgili University , 43002 Tarragona , Spain.,12 Institut Català de Paleoecologia Humana i Evolució Social (IPHES) , 43007 Tarragona , Spain
| | | | - A Manica
- 14 Department of Zoology, University of Cambridge , Cambridge CB2 3EJ , UK
| | - M Hofreiter
- 2 Institute for Biochemistry and Biology, University of Potsdam , 14476 Potsdam OT Golm , Germany
| | - G Barbujani
- 1 Department of Life Science and Biotechnology, University of Ferrara , 44121 Ferrara , Italy
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3
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Affiliation(s)
- J V Alonso
- Department of Emergency Medicine, Royal Bournemouth Hospital, Bournemouth BH7 7DW, UK
| | - F J F Del Pozo
- Department of Emergency and Critical Care Unit of Montoro, Maimónides Biomedical Research Institute of Córdoba, 14004 Córdoba, Spain
| | - M Vaquero
- Department of Family Medicine, Jean Health Centre, 23003 Jaén, Spain
| | - I Islam
- Department of Emergency Medicine, Royal Bournemouth Hospital, Bournemouth BH7 7DW, UK
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4
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de Julián E, Menéndez-Pedregal E, Claros M, Vaquero M, Díez J, Lastra E, Gamasa P, Pizzano A. Practical synthesis of enantiopure benzylamines by catalytic hydrogenation or transfer hydrogenation reactions in isopropanol using a Ru-pybox catalyst. Org Chem Front 2018. [DOI: 10.1039/c7qo00908a] [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: 11/21/2022]
Abstract
A Ru/Ph-pybox catalyst provides a very high enantioselectivity in the hydrogenation and transfer hydrogenation of N-aryl imines.
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Affiliation(s)
- E. de Julián
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC)
- Departamento de Química Orgánica e Inorgánica
- Instituto de Química Organometálica “Enrique Moles”
- Universidad de Oviedo
- 33006 Oviedo
| | - E. Menéndez-Pedregal
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC)
- Departamento de Química Orgánica e Inorgánica
- Instituto de Química Organometálica “Enrique Moles”
- Universidad de Oviedo
- 33006 Oviedo
| | - M. Claros
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC)
- Departamento de Química Orgánica e Inorgánica
- Instituto de Química Organometálica “Enrique Moles”
- Universidad de Oviedo
- 33006 Oviedo
| | - M. Vaquero
- Instituto de Investigaciones Químicas (IIQ) and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- 41092 Sevilla
- Spain
| | - J. Díez
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC)
- Departamento de Química Orgánica e Inorgánica
- Instituto de Química Organometálica “Enrique Moles”
- Universidad de Oviedo
- 33006 Oviedo
| | - E. Lastra
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC)
- Departamento de Química Orgánica e Inorgánica
- Instituto de Química Organometálica “Enrique Moles”
- Universidad de Oviedo
- 33006 Oviedo
| | - P. Gamasa
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC)
- Departamento de Química Orgánica e Inorgánica
- Instituto de Química Organometálica “Enrique Moles”
- Universidad de Oviedo
- 33006 Oviedo
| | - A. Pizzano
- Instituto de Investigaciones Químicas (IIQ) and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- 41092 Sevilla
- Spain
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5
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Causse M, Ruiz P, Gutierrez JB, Vaquero M, Casal M. New Anyplex™ II MTB/MDR/XDR kit for detection of resistance mutations in M. tuberculosis cultures. Int J Tuberc Lung Dis 2016; 19:1542-6. [PMID: 26614199 DOI: 10.5588/ijtld.15.0235] [Citation(s) in RCA: 9] [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: 11/10/2022] Open
Abstract
SETTINGS The new Anyplex™ II MTB/MDR/XDR PCR assay enables the joint analysis of mutations conferring resistance to first- and second-line anti-tuberculosis drugs and the detection of Mycobacterium tuberculosis. OBJECTIVES To evaluate the performance of the new Anyplex assay in detecting mutations that confer resistance to first- and second-line drugs in M. tuberculosis cultures. DESIGN Results obtained using the new technique were compared with those obtained by phenotypic drug susceptibility testing (DST) and with two GenoType tests for the detection of mutations: GenoType(®) MTBDRplus and GenoType(®) MTBDRsl. RESULTS For rifampicin resistance mutations, Anyplex displayed 97% sensitivity and 100% specificity compared with 100% and 100% for MTBDRplus. For isoniazid (INH) resistance, Anyplex displayed 61% sensitivity and 98% specificity compared with 62% and 98% for MTBDRplus. For second-line drugs, Anyplex recorded 95% sensitivity and 99% specificity in the detection of resistance to quinolones compared with 100% and 98% for the MTBDRsl. While both techniques displayed 100% specificity for aminoglycoside resistance mutations, sensitivity was 100% for Anyplex and 88% for MTBDRsl. CONCLUSIONS Results obtained using Anyplex agreed strongly with those obtained using the two GenoType molecular techniques and with phenotypic DST, except in the case of INH, due to the large number of genes involved in resistance to this drug.
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Affiliation(s)
- M Causse
- Microbiology Service, Reina Sofía University Hospital, Córdoba, Spain
| | - P Ruiz
- Mycobacteria Reference Center, Department of Microbiology, Faculty of Medicine, University of Córdoba, Córdoba, Spain
| | - J B Gutierrez
- Microbiology Service, Reina Sofía University Hospital, Córdoba, Spain
| | - M Vaquero
- Mycobacteria Reference Center, Department of Microbiology, Faculty of Medicine, University of Córdoba, Córdoba, Spain
| | - M Casal
- Microbiology Service, Reina Sofía University Hospital, Córdoba, Spain; Mycobacteria Reference Center, Department of Microbiology, Faculty of Medicine, University of Córdoba, Córdoba, Spain
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6
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Gomez R, Nunez L, Vaquero M, Amoros I, Barana A, de Prada T, Macaya C, Maroto L, Rodriguez E, Caballero R, Lopez-Farre A, Tamargo J, Delpon E. Nitric oxide inhibits Kv4.3 and human cardiac transient outward potassium current (Ito1). Cardiovasc Res 2008; 80:375-84. [DOI: 10.1093/cvr/cvn205] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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7
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Radicke S, Vaquero M, Caballero R, Gómez R, Núñez L, Tamargo J, Ravens U, Wettwer E, Delpón E. Effects of MiRP1 and DPP6 beta-subunits on the blockade induced by flecainide of Kv4.3/KChIP2 channels. Br J Pharmacol 2008; 154:774-86. [PMID: 18536731 DOI: 10.1038/bjp.2008.134] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND AND PURPOSE The human cardiac transient outward potassium current (Ito) is believed to be composed of the pore-forming Kv4.3 alpha-subunit, coassembled with modulatory beta-subunits as KChIP2, MiRP1 and DPP6 proteins. beta-Subunits can alter the pharmacological response of Ito; therefore, we analysed the effects of flecainide on Kv4.3/KChIP2 channels coassembled with MiRP1 and/or DPP6 beta-subunits. EXPERIMENTAL APPROACH Currents were recorded in Chinese hamster ovary cells stably expressing K(V)4.3/KChIP2 channels, and transiently transfected with either MiRP1, DPP6 or both, using the whole-cell patch-clamp technique. KEY RESULTS In control conditions, Kv4.3/KChIP2/MiRP1 channels exhibited the slowest activation and inactivation kinetics and showed an 'overshoot' in the time course of recovery from inactivation. The midpoint values (Vh) of the activation and inactivation curves for Kv4.3/KChIP2/DPP6 and Kv4.3/KChIP2/MiRP1/DPP6 channels were approximately 10 mV more negative than Vh values for Kv4.3/KChIP2 and Kv4.3/KChIP2/MiRP1 channels. Flecainide (0.1-100 microM) produced a similar concentration-dependent blockade of total integrated current flow (IC50 approximately 10 microM) in all the channel complexes. However, the IC50 values for peak current amplitude and inactivated channel block were significantly different. Flecainide shifted the Vh values of both the activation and inactivation curves to more negative potentials and apparently accelerated inactivation kinetics in all channels. Moreover, flecainide slowed recovery from inactivation in all the channel complexes and suppressed the 'overshoot' in Kv4.3/KChIP2/MiRP1 channels. CONCLUSIONS AND IMPLICATIONS Flecainide directly binds to the Kv4.3 alpha-subunit when the channels are in the open and inactivated state and the presence of the beta-subunits modulates the blockade by altering the gating function.
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Affiliation(s)
- S Radicke
- Department of Pharmacology, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
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8
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Villegas IA, Morán CL, Vaquero M. [Cystic adenomatoid malformations of the lung: presentation of 5 cases and review]. Cir Pediatr 2008; 21:46-48. [PMID: 18444391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We describe five cases of cystic adenomatoid malformations of the lung collected from our files from 1994 to 2006. It is an unusual malformation and has features of immaturity with less than 400 cases previously published. All patients were surgically treated in our institution. We review the clinical outcome, microscopic findings, current classification schemes and prenatal surgical treatment. Our study includes 3 newborn males and two girls, 3 and 9 years old. All of them radiographically showed air or fluid filled cystic masses involving a single lobe. After lobectomy, four lung specimens were classified as Stoker type 2 lesions and the older one as type 1.
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Affiliation(s)
- I Amat Villegas
- Servicio de Anatomía Patológica, Hospital Donostia, San Sebastian.
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9
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Estefanía E, Gómez-Lozano N, Portero F, de Pablo R, Solís R, Sepúlveda S, Vaquero M, González MA, Suárez E, Roustán G, Vilches C. Influence of KIR gene diversity on the course of HSV-1 infection: resistance to the disease is associated with the absence of KIR2DL2 and KIR2DS2. ACTA ACUST UNITED AC 2007; 70:34-41. [PMID: 17559579 DOI: 10.1111/j.1399-0039.2007.00844.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herpes simplex virus type 1 (HSV-1) causes lifelong latent infections in most humans. Periodical virus reactivations from latency in the neurons of sensitive ganglia lead to transport to mucocutaneous regions and productive replication, which results in recurrent inflammatory herpetic lesions or in asymptomatic virus shedding. The medical consequences of such lesions and the frequency of recurrences vary greatly in different subjects. Furthermore, many infected individuals never suffer manifestations of the disease, even when exposed to stimuli that trigger clinical recurrences in other humans. The origin of the variability in the clinical course of HSV-1 infection remains unexplained. Herpesviruses and other pathogens sabotage the expression of major histocompatibility complex class I molecules by infected cells, thus subverting T-cell-mediated immunity. Subversion of antigen presentation is counteracted by natural killer cells, which survey the human leukocyte antigen (HLA) expression by specific receptors. These include the killer cell immunoglobulin-like receptors (KIRs), which are encoded by a complex of extremely diverse and rapidly evolving genes. Here, we analyze the contribution of KIR gene diversity to the variable clinical course of HSV-1 infection by comparing the distribution of these genes in humans with clinical manifestations of the disease with that in asymptomatically infected donors. This study provides preliminary evidence that the receptors KIR2DL2 and KIR2DS2 predispose to symptomatic HSV-1 infection and favor the frequently recurring forms of the disease. Possible contribution of the 'HLA-C1' ligand to HSV-1 disease was not statistically supported. Because of an absolute genetic linkage between KIR2DL2 and KIR2DS2, we could not determine which receptor was primarily responsible for the observed association, but our results suggest that presence in the genome of KIR2DL2 and KIR2DS2 hinders an effective cellular response to HSV-1.
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Affiliation(s)
- E Estefanía
- Department of Immunology, Hospital Universitario Puerta de Hierro, Universidad Autónoma de Madrid, San Martin de Porres 4, 28035 Madrid, Spain
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10
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Vaquero M, Caballero R, Gómez R, Núñez L, Tamargo J, Delpón E. Effects of atorvastatin and simvastatin on atrial plateau currents. J Mol Cell Cardiol 2007; 42:931-45. [PMID: 17466325 DOI: 10.1016/j.yjmcc.2007.03.807] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2006] [Revised: 02/09/2007] [Accepted: 03/12/2007] [Indexed: 10/23/2022]
Abstract
Recent evidence has shown that the inhibitors of the 3-hydroxy-3-methylglutaryl coenzyme A reductase (statins) might exert antiarrhythmic effects both in experimental models and in humans. In this study we analyzed the effects of atorvastatin and simvastatin acid (SVA) on the currents responsible for the duration of the plateau of human atrial action potentials: hKv1.5, Kv4.3, and L-type Ca(2+) (I(Ca,L)). hKv1.5 and Kv4.3 currents were recorded in transfected Ltk(-) and Chinese hamster ovary cells, respectively, and I(Ca,L) in mouse ventricular myocytes, using whole-cell patch-clamp. Atorvastatin and SVA produced a concentration-dependent block of hKv1.5 channels (IC(50)=4.5+/-1.7 microM and 5.7+/-0.03 microM, respectively) and shifted the midpoint of the activation and inactivation curves to more negative potentials. Importantly, atorvastatin- and SVA-induced block was added to that produced by quinidine, a drug that blocks hKv1.5 channels by binding to their pore cavity. Atorvastatin and SVA blocked Kv4.3 channels in a concentration-dependent manner (IC(50)=13.9+/-3.6 nM and 7.0+/-0.8 microM, respectively). Both drugs accelerated the inactivation kinetics and shifted the inactivation curve to more negative potentials. SVA (10 nM), but not atorvastatin, also blocked I(Ca,L) producing a frequency-dependent block that, at 2 Hz, reached a 50.2+/-1.5%. As a consequence of these effects, at nanomolar concentrations, atorvastatin lengthened, whereas SVA shortened, the duration of mouse atrial action potentials. The results suggest that atorvastatin and SVA alter Kv1.5 and Kv4.3 channel activity following a complex mechanism that does not imply the binding of the drug to the channel pore.
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Affiliation(s)
- M Vaquero
- Department of Pharmacology, School of Medicine, Universidad Complutense, 28040, Madrid, Spain
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11
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Fité E, Fernández-Figueras MT, Prats R, Vaquero M, Morera J. High prevalence of Mycobacterium tuberculosis DNA in biopsies from sarcoidosis patients from Catalonia, Spain. Respiration 2005; 73:20-6. [PMID: 16113515 DOI: 10.1159/000087688] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [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: 05/06/2004] [Accepted: 01/26/2005] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Sarcoidosis is a systemic granulomatous disease of unknown etiology. The presence of mycobacterial nucleic acid components in patients with sarcoidosis has been demonstrated with varying degrees of success. OBJECTIVES The aim of this study was to estimate the presence of Mycobacterium tuberculosis DNA in tissues from sarcoidosis patients, in Catalonia, Spain, as well as to assess the long-term clinical course in these patients. METHODS Fifty-eight paraffin-embedded tissue biopsies corresponding to cases of sarcoidosis (n = 23), lung neoplasm (n = 23), and lung tuberculosis (n = 12) available in 1996 were analyzed in a retrospective study by means of a nested polymerase chain reaction using primers corresponding to the insertion element IS6110 of M. tuberculosis complex. For greater sensitivity, Southern blot hybridization was performed. Clinical data were recorded prior to and after PCR analysis (follow-up reported until 2002). RESULTS M. tuberculosis DNA was present in 9 out of 23 sarcoidosis biopsies (39%), in 1 out of 23 control patients (4%) (p < 0.01), and in all tissue samples from the 12 control patients with tuberculosis. To date, none of these sarcoidosis patients has developed tuberculosis over a mean (+/-SD) follow-up period of 11 (+/-3.4) years. CONCLUSION In our setting, M. tuberculosis DNA is present in tissue biopsies of significantly more sarcoidosis patients than controls. However, these results do not demonstrate causality, although they may suggest a link between M. tuberculosis infection and sarcoidosis in some cases. Follow-up of these patients suggests that M. tuberculosis-DNA-positive sarcoidosis patients are not at greater risk of developing tuberculosis than M. tuberculosis-DNA-negative patients.
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Affiliation(s)
- E Fité
- Servei de Pneumologia, Hospital Universitari Germans Trias i Pujol, Universitat Autonoma de Barcelona, Badalona, Spain.
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12
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Casal M, Vaquero M, Rinder H, Tortoli E, Grosset J, Rüsch-Gerdes S, Gutiérrez J, Jarlier V. A Case-Control Study for Multidrug-Resistant Tuberculosis: Risk Factors in Four European Countries. Microb Drug Resist 2005; 11:62-7. [PMID: 15770097 DOI: 10.1089/mdr.2005.11.62] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
The aim of this study was to detect risk factors for multidrug resistance in patients with pulmonary tuberculosis in four European Union countries: France, Germany, Italy, and Spain. A prospective epidemiological case control study was conducted, made up of patients with clinically diagnosed and microbiologically confirmed pulmonary tuberculosis in the four countries between 1997 and 2000. A total of 138 cases and 276 controls were studied. Considering the four countries as a whole, the most statistically significant risk factors were as follows: intravenous drug use (OR 4.68); asylum-seeker support (OR 2.55) as income factor; living in a nursing home (OR 2.05); previous tuberculosis (OR 2.03) with pulmonary location; prison (OR 2.02); known tuberculosis contacts (OR 2.01); immunosuppression other than human immunodeficiency virus (HIV) (OR 1.96); acquired immunodeficiency syndrome (AIDS) (OR 1.96); current tuberculosis with pulmonary location (OR 1.77); and health-care worker (OR 1.69). These risk factors will have to be taken into account in the European Union as a whole, as well as in each individual country, to establish a health policy of monitoring and control for these cases of multidrug resistance. Although rare, their seriousness makes them particularly important.
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Affiliation(s)
- M Casal
- Mycobacteria Reference Center, Faculty of Medicine, University of Córdoba, Spain.
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Vallverdú J, Allué E, Bischoff JL, Cáceres I, Carbonell E, Cebrià A, García-Antón D, Huguet R, Ibáñez N, Martínez K, Pastó I, Rosell J, Saladié P, Vaquero M. Short human occupations in the Middle Palaeolithic level I of the Abric Romani rock-shelter (Capellades, Barcelona, Spain). J Hum Evol 2005; 48:157-74. [PMID: 15701529 DOI: 10.1016/j.jhevol.2004.10.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.9] [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: 03/26/2004] [Accepted: 10/06/2004] [Indexed: 10/25/2022]
Abstract
This paper presents a multidisciplinary study on the size of the occupied surfaces, provisioning strategies and behaviour planning at the Romani rock-shelter, using the Middle Palaeolithic record of the level i. This level is dated around 46.000 BP through U/Th ages. A behavioural interpretation is proposed, which emphasises the activities and the systemic value of the archaeological artefacts and structures. Occupation patterns are identified on the basis of the accumulations formed by human activities. These archaeological accumulations, consisting of artefacts and hearths, are easily defined visually as spatial units. The relationships between these accumulations, established by means of refitted remains, indicate that differences can be established between: 1) small and medium-sized occupation surfaces; 2) restricted and diversified provisioning strategies. This variability suggests that different modes of occupation are represented in the same archaeological level. The human activities reveal the generalization of fire technology. In almost all sizes of the occupation surfaces, the exploitation of vegetal resources near the Abric Romani marks the threshold of the restricted provisioning strategy. Limited use and fragmented knapping activities are recorded in the lithic assemblage. Faunal remains show differential transport. The exploitation of lithic, faunal and vegetal resources characterizes the diversified provisioning strategy. The small occupation surfaces and restricted provisioning strategies suggest short settlements in the Abric Romani. This shorter occupation model complements the longer diversified provisioning strategy recorded in both small and medium-sized occupied surfaces. The selection of precise elements for transport and the possible deferred consumption in the diversified provision strategy suggest an individual supply. In this respect, Neanderthal occupations in the Romani rock-shelter show a direct relation to: 1) hunting strategic resources; 2) high, linear mobility.
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Affiliation(s)
- J Vallverdú
- Area de Prehistòria, Departament d'Història i Geografia, Universitat Rovira i Virgili, Plaça Imperial Tàrraco, 1, 43.005 Tarragona, Spain.
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Abstract
An extraordinary case of encapsulated fat necrosis characterized by its large size, diffuse formation of pseudomembranes, and tendency to recur after excision is reported. A 67-year-old Caucasian woman suffering from morbid obesity was admitted for diagnosis and surgical treatment of a soft tissue mass showing a longest diameter of 14 cm and lying adjacently to the scar from previous appendicectomy. Histopathologic features were consistent with a nodular-cystic encapsulated fat necrosis with diffuse pseudomembranous transformation. Eight months after surgery, a new larger mass (longest diameter of 18 cm) sharing identical histopathologic features appeared in the same location. Encapsulated fat necrosis is a well-defined entity even though several names have been proposed for this condition, including mobile encapsulated lipoma, encapsulated necrosis, or nodular-cystic fat necrosis. Its pathogenesis seems to be related to ischemic changes secondary to previous trauma. It may occasionally show degenerative changes, including dystrophic calcifications and presence of pseudomembranes. To our knowledge, these are the first reported cases of encapsulated fat necrosis presenting as lesions of such size and showing diffuse formation of pseudomembranes; these particular features made diagnosis difficult and led to consideration of a wide range of potential diagnostic possibilities. This case expands the clinico-pathologic spectrum of membranocystic fat necrosis, including the potential ability of this subcutaneous fatty tissue abnormality to recur after surgical excision. Felipo F, Vaquero M, del Agua C. Pseudotumoral encapsulated fat necrosis with diffuse pseudomembranous degeneration.
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Affiliation(s)
- F Felipo
- Department of Pathology, Hospital Donostia, Paseo Dr Begiristain s/n 20014 San Sebastián, Spain.
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Vaquero M, Gómez P, Romero M, Casal MJ. Investigation of biological risk in mycobacteriology laboratories: a multicentre study. Int J Tuberc Lung Dis 2003; 7:879-85. [PMID: 12971673] [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: 03/04/2023] Open
Abstract
SETTING Microbiology laboratories constitute a special working environment that may pose a risk of infectious disease to persons in or near them. OBJECTIVE To assess whether clinical mycobacteriology laboratories in Spanish hospitals comply with occupational health and safety guidelines, and if laboratory workers are protected against the risk of exposure to biological agents in the workplace. DESIGN A transversal epidemiological study was carried out in 26 hospitals from October to December 2000 by means of a standardised survey questionnaire to evaluate the workers, workload, training and information and safety practices in mycobacteria laboratories. RESULTS Less than half of employees receive periodic information on the health hazards involved in their work. More than a third of the workers in mycobacteriology laboratories stated that the laboratories lack effective air filtering systems and more than half stated that negative pressurisation was not maintained in the work area. Biosafety masks are used by little more than half of the workers. The most frequently used Biological Safety Cabinets are Class IIB. CONCLUSION Our findings demonstrate that clinical microbiology laboratories in Spanish hospitals comply poorly with the prevention measures outlined in the applicable directives and regulations.
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Affiliation(s)
- M Vaquero
- Mycobacteria Reference Laboratory, University of Cordoba, Cordoba, Spain
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Olmedilla B, Granado F, Blanco I, Vaquero M. Lutein, but not alpha-tocopherol, supplementation improves visual function in patients with age-related cataracts: a 2-y double-blind, placebo-controlled pilot study. Nutrition 2003; 19:21-4. [PMID: 12507634 DOI: 10.1016/s0899-9007(02)00861-4] [Citation(s) in RCA: 175] [Impact Index Per Article: 8.3] [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: 11/29/2022]
Abstract
OBJECTIVE We investigated the effect of long-term antioxidant supplementation (lutein and alpha-tocopherol) on serum levels and visual performance in patients with cataracts. METHODS Seventeen patients clinically diagnosed with age-related cataracts were randomized in a double-blind study involving dietary supplementation with lutein (15 mg; n = 5), alpha-tocopherol (100 mg; n = 6), or placebo (n = 6), three times a week for up to 2 y. Serum carotenoid and tocopherol concentrations were determined with quality-controlled high-performance liquid chromatography, and visual performance (visual acuity and glare sensitivity) and biochemical and hematologic indexes were monitored every 3 mo throughout the study. Changes in these parameters were assessed by General Linear Model (GLM) repeated measures analysis. RESULTS Serum concentrations of lutein and alpha-tocopherol increased with supplementation, although statistical significance was reached only in the lutein group. Visual performance (visual acuity and glare sensitivity) improved in the lutein group, whereas there was a trend toward the maintenance of and decrease in visual acuity with alpha-tocopherol and placebo supplementation, respectively. No significant side effects or changes in biochemical or hematologic profiles were observed in any of the subjects during the study. CONCLUSIONS Visual function in patients with age-related cataracts who received the lutein supplements improved, suggesting that a higher intake of lutein, through lutein-rich fruit and vegetables or supplements, may have beneficial effects on the visual performance of people with age-related cataracts.
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Affiliation(s)
- B Olmedilla
- Unidad de Vitaminas, Sección de Nutrición, Clínica Puerta de Hierro, Madrid, Spain.
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17
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Isasi C, Sanz J, Hijós M, Vaquero M, Saucedo G, Andreu JL. Successful treatment of optic neuropathy in osteitis deformans. Rheumatology (Oxford) 2002; 41:948-50. [PMID: 12154218 DOI: 10.1093/rheumatology/41.8.948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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18
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Olmedilla B, Granado F, Blanco I, Herrero C, Vaquero M, Millan I. Serum status of carotenoids and tocopherols in patients with age-related cataracts: a case-control study. J Nutr Health Aging 2002; 6:66-8. [PMID: 11813087] [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: 02/23/2023]
Abstract
BACKGROUND Cataract is an important health problem that increase with age, causes decreased visual acuity and constitute a major cause of disability in the elderly. Epidemiological studies have shown that elevated serum levels and / or intake of several antioxidants, such as carotenoids, vitamin E and ascorbic acid, are associated with a diminished risk for cataracts. OBJECTIVE To assess the serum fat-soluble antioxidant status in patients with cataracts and its relationship with visual function. METHODS One hundred thirty eight patients with senile cataracts, classified according to visual acuity, and 110 age and sex-matched controls were studied for individual carotenoids and tocopherols in serum by a quality-controlled HPLC method. One-way ANOVA analysis and logistic regression analysis were applied. RESULTS Higher serum levels of lutein and zeaxanthin were associated as risk factors for cataract while b-cryptoxanthin and g-tocopherol appeared as protective variables. Higher levels of zeaxanthin and lower concentrations of b-cryptoxanthin were associated with cataracts in people < 61y whereas only lower levels of g-tocopherol were shown in subjects >61y. No significant correlations (adjusted for sex and age) were found between visual acuity and serum concentrations of carotenoids or tocopherols. CONCLUSION Although the relation between carotenoids and cataracts is biologically plausible, serum carotenoid levels are highly dependent on dietary intake and thus may not be clinically relevant biomakers for cataracts risk.
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Affiliation(s)
- B Olmedilla
- Seccion de Nutricion (Unidad de Vitaminas), Clinica Puerta de Hierro, San Martin de Porres, 28035-Madrid, Spain.
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Navarro JT, Ribera JM, Oriol A, Vaquero M, Romeu J, Batlle M, Flores A, Millá F, Feliu E. Influence of highly active anti-retroviral therapy on response to treatment and survival in patients with acquired immunodeficiency syndrome-related non-Hodgkin's lymphoma treated with cyclophosphamide, hydroxydoxorubicin, vincristine and prednisone. Br J Haematol 2001; 112:909-15. [PMID: 11298585 DOI: 10.1046/j.1365-2141.2001.02656.x] [Citation(s) in RCA: 71] [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: 11/20/2022]
Abstract
Combined highly active anti-retroviral therapy (HAART) with protease and reverse transcriptase inhibitors has modified the natural history of opportunistic infections and neoplasms in human immunodeficiency virus (HIV)-infected patients. We analysed the influence of HAART on the response to treatment and survival in a series of 58 patients with acquired immune deficiency syndrome (AIDS)-related non-Hodgkin's lymphoma (NHL) treated with CHOP (cyclophosphamide, hydroxydoxorubicin, vincristine and prednisone). Two groups of patients were included: (i) forty-one patients diagnosed with NHL between 1988 and 1996 who were not treated with HAART; (ii) seventeen patients diagnosed since 1996, who were receiving or commenced HAART when NHL was diagnosed. The response rate to CHOP was higher in group 2 (13 out of 17 cases; 75%) than in group 1 (14 out of 41 cases; 34%) (P = 0.003). The 2-year probability of event-free survival (EFS) [95% confidence interval (CI)] for group 1 was 0.5 (0.24-0.74), whereas for group 2 it was 0.85 (0.61-0.90) (P = 0.024). The lymphoma-free survival (LFS) was also significantly different for both groups (2-year LFS probability 0.53 vs. 1.0, P = 0.04). The median (95% CI) overall survival (OS) for group 1 was 7 months (range, 3-10.8 months), whereas it was not reached in group 2 (P = 0.0015). In the multivariate analysis for remission attainment, the only variables with a higher probability to achieve complete remission (CR) were HAART (P = 0.01) and International Prognostic Index score 1 (P = 0.02). The only statistically significant variable in the multivariate analysis for EFS was HAART (P = 0.049) and the variables with prognostic value for OS in the multivariate analysis were B symptoms (P = 0.01) and HAART (P = 0.003). Patients with AIDS-related NHL treated with CHOP and HAART had a higher CR rate than those treated only with CHOP. In this study, HAART was an independent prognostic factor for CR, OS and EFS in patients with AIDS-related NHL.
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Affiliation(s)
- J T Navarro
- Department of Haematology-Haemotherapy, Hospital Germans Trias i Pujol, C/Canyet s/n, 08916 Badalona, Universitat Autònoma de Barcelona, Spain
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Rinder H, Mieskes KT, Tortoli E, Richter E, Casal M, Vaquero M, Cambau E, Feldmann K, Löscher T. Detection of embB codon 306 mutations in ethambutol resistant Mycobacterium tuberculosis directly from sputum samples: a low-cost, rapid approach. Mol Cell Probes 2001; 15:37-42. [PMID: 11162078 DOI: 10.1006/mcpr.2000.0339] [Citation(s) in RCA: 21] [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] [Indexed: 11/22/2022]
Abstract
Substitutions of codon 306 in the gene embB are the most common mutations found in ethambutol resistant Mycobacterium tuberculosis. The characterization of these mutations has been hampered by the need for prior cultivation of the mycobacteria, or the need for DNA sequencing, or both. Here, we describe a simple and culture-independent technique to detect embB codon 306 mutations directly from sputum samples, requiring little more than a PCR machine and a simple agarose minigel. There is no need for labelled probes or DNA sequencing. In a preliminary test of feasibility, interpretable results were obtained from 21 of 24 selected sputum samples, 12 of which were determined to contain ethambutol resistant M. tuberculosis after culture. All of six samples with embB codon 306 mutations were correctly identified. Although an exact validation of this technique is beyond the scope of this technical report, we conclude from well-known embB codon 306 mutation prevalence figures that approximately one half of EMB resistant cases could already be predicted within 2 working days, with little equipment or hands-on time needed, instead of weeks required for conventional resistance testing.
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Affiliation(s)
- H Rinder
- Department of Infectious Diseases and Tropical Medicine, University of Munich, Leopoldstr.5, 80202 Munich, Germany.
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21
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Sancho JM, Ribera JM, Vaquero M, Sirera G. [Diffuse infiltrative CD8 lymphocytosis syndrome in a patient with HIV-1 infection]. Med Clin (Barc) 2000; 115:399. [PMID: 11262361] [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: 02/19/2023]
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22
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Hernández-Rivas JA, Vaquero M, Sanz P. [Abdominal pain and diarrhoea in a 33 year-old man]. Med Clin (Barc) 2000; 115:271-7. [PMID: 11013153] [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: 02/17/2023]
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23
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Navarro JT, Ribera JM, Vaquero M, Pastor MC, Oriol A, Romeu J, Batlle M, Millá F, Feliu E. Increased serum levels of CD44s and CD44v6 in patients with AIDS-related non-Hodgkin's lymphoma. AIDS 2000; 14:1460-1. [PMID: 10930167 DOI: 10.1097/00002030-200007070-00025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sancho JM, Ribera JM, Vaquero M, Oriol A, Hernández-Rivas JA, Feliu E. Non-gastrointestinal malt lymphomas: a study of 10 cases and comparison with 27 patients with gastrointestinal MALT lymphoma. Haematologica 2000; 85:557-9. [PMID: 10800182] [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: 02/16/2023] Open
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Vaquero M, Gutiérrez J, Casal MJ. Methodology of case-control studies in the epidemiology of multidrug-resistant tuberculosis. Rev Esp Quimioter 2000; 13:20-30. [PMID: 10855021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- M Vaquero
- Mycobacteria Reference Center, Faculty of Medicine, University of Cordoba, Spain
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26
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Ribera JM, Navarro JT, Oriol A, Vaquero M, Grau J, Feliu E. Usefulness of the prognostic score for advanced Hodgkin's disease in patients with human immunodeficiency virus-associated Hodgkin's lymphoma. Haematologica 2000; 85:325-6. [PMID: 10702829] [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: 02/15/2023] Open
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Frías C, Lauzurica R, Vaquero M, Ribera JM. Detection of Epstein-Barr virus in posttransplantation T cell lymphoma in a kidney transplant recipient: case report and review. Clin Infect Dis 2000; 30:576-8. [PMID: 10722446 DOI: 10.1086/313704] [Citation(s) in RCA: 20] [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: 11/03/2022] Open
Abstract
Posttransplantation T cell lymphomas (PTTLs) are rather unusual, and their etiology remains unclear. We describe a case of Epstein-Barr virus (EBV)-associated small bowel T cell lymphoma in a patient 5 years after kidney transplantation. EBV was detected in a biopsy sample by in situ hybridization, immunohistochemical staining, and polymerase chain reaction analysis. Eight previously reported cases of EBV-associated PTTL are reviewed, in which special attention is paid to the methods used for assessing EBV. This case of EBV-associated PTTL is believed to be the most completely studied from the point of view of the methods used for detection of EBV. The prognosis of PTTL is poor, but it has been reported that therapeutic approaches can be successful if they are given early in the course of the illness. Therefore, it is necessary to improve the diagnosis PTTL and to assess the precise involvement of EBV in posttransplantation lymphoproliferative disorders.
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Affiliation(s)
- C Frías
- Department of Microbiology, Hospital Universitari Germans Trias i Pujol, 08916 Badalona, Spain.
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Affiliation(s)
- M Vaquero
- Servicio de Anatomía Patológica, Hospital Universitario Germans Trias i Pujol, Badalona, Barcelona
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Tomás Navarro J, Ribera JM, Grau J, Frías C, Vaquero M, Sirera G, Batlle M, Millá F, Feliu E. [Hodgkin's disease in patients infected by the human immunodeficiency virus. Study of fifteen cases]. Med Clin (Barc) 2000; 114:19-21. [PMID: 10782456 DOI: 10.1016/s0025-7753(00)71175-4] [Citation(s) in RCA: 5] [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: 11/27/2022]
Abstract
BACKGROUND In spite of not being considered as an AIDS defining illness, Hodgkin's disease (HD) has specific clinical and biological features in HIV-infected patients. PATIENTS AND METHODS Study of clinicopathologic and analytic characteristics, Epstein-Barr virus (EBV) detection (polymerase chain reaction), and prognosis in 15 patients with HD and HIV infection. RESULTS Thirteen patients had B symptoms, 10 extranodal involvement and 12 advanced HD. The most frequent histologic subtypes were mixed cellularity (6) and lymphocyte depletion (6). The mean (SD) of CD4 lymphocytes was 0.10 (0.08) x 10(9)/l. The presence of EBV in lymph node biopsy was demonstrated in 3 out of 4 patients investigated. Complete remission (CR) was achieved in 7 out of 14 treated cases (50%), the median overall survival was 26 months and the 2 year event-free survival probability was 60%. CONCLUSIONS In HIV-infected patients, HD presents in advanced stages, unfavourable histologic subtypes, frequent extranodal involvement and B symptoms. The prognosis is poor, mainly because of a low CR rate.
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Affiliation(s)
- J Tomás Navarro
- Servicio de Hematología-Hemoterapia, Hospital Germans Trias i Pujol, Badalona, Universidad Autónoma de Barcelona
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Ribera J, Vaquero M, Altet J, Ortega R, Vilardell F. Mujer de 87 años con mal estado general, fiebre, hepatomegalia y hemofagocitosis. Med Clin (Barc) 2000. [DOI: 10.1016/s0025-7753(00)71643-5] [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: 11/15/2022]
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Pascual MJ, Vaquero M. [Fever, abdominal pain and coma with a rapidly unfavorable evolution in a 48-year-old patient with acute promyelocytic leukemia during the period of post-chemotherapy pancytopenia]. Med Clin (Barc) 1999; 113:230-8. [PMID: 10472613] [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: 02/13/2023]
Affiliation(s)
- M J Pascual
- Servicio de Hematología, Complejo Hospitalario Carlos Haya, Málaga
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Bonet J, Vaquero M, Bayés B, Romero R. [Renal involvement in patients with chronic inflammatory intestinal disease treated with mesalazine. How to prevent its nephrotoxicity?]. Med Clin (Barc) 1999; 113:199. [PMID: 10480148] [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: 02/13/2023]
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Rinder H, Feldmann K, Tortoli E, Grosset J, Casal M, Richter E, Rifai M, Jarlier V, Vaquero M, Rüsch-Gerdes S, Cambau E, Gutierrez J, Löscher T. Culture-independent prediction of isoniazid resistance in Mycobacterium tuberculosis by katG gene analysis directly from sputum samples. Mol Diagn 1999; 4:145-52. [PMID: 10462629 DOI: 10.1016/s1084-8592(99)80038-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The molecular prediction of isoniazid (INH) resistance in Mycobacterium tuberculosis is hampered by the need for specialized equipment, expertise, high costs, a limited range of detectable mutations, or several of these factors. The rationale for the study was to find a practical alternative and to demonstrate generally valid problems. METHODS AND RESULTS DNA extracted from decontaminated sputum pellets was used to amplify a 0.26 kb target sequence within the katG gene. Mutations of codon 315, frequently found in isoniazid-resistant isolates, could be discriminated in a simple agarose minigel format following an AciI digest of the nested polymerase chain reaction (PCR) product. Within a panel of 22 sputum samples, INH resistance could be predicted in 5 of 10 samples containing isoniazid-resistant M. tuberculosis. The protocol is robust, requires little expertise and no specialized equipment, and provides the test results within 2 days. CONCLUSION The results show the feasibility to rapidly and easily detect mutations highly predictive of isoniazid resistance. Nevertheless, this, like any other molecular resistance prediction test, is affected by often neglected factors, including mutation prevalences, the phenomenon of heteroresistance, and a possible bias toward one's own method.
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Affiliation(s)
- H Rinder
- Department of Infectious Diseases and Tropical Medicine, Klinikum Innenstadt, University of Munich, Munich, Germany
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Sancho JM, Ribera JM, Roussos I, Vaquero M. [Spinal cord compression by primary vertebral amyloidoma of lumbar region]. Med Clin (Barc) 1999; 112:719. [PMID: 10374210] [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: 02/12/2023]
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35
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Abstract
Typical Cogan's syndrome is a rare disease of young adults consisting of flares of interstitial keratitis and sudden onset of Ménière-like attacks (nausea, vomiting, tinnitus, vertigo and hearing loss). Life-threatening aortic insufficiency develops in 10% of reported cases. Atypical Cogan's syndrome (audiovestibular dysfunction with other types of inflammatory eye disease) is associated with vasculitis in 20% of cases and has a less favourable prognosis than typical Cogan's syndrome.
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Hernández JA, Ribera JM, Vaquero M, Feliu E. [Primary non-Hodgkin's lymphomas of the parotid gland. Study of 5 patients]. Med Clin (Barc) 1999; 112:319. [PMID: 10207855] [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: 02/11/2023]
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Hernández JA, Navarro JT, Ribera JM, Sancho JM, Vaquero M, Sirera G, Batlle M, Millá F, Feliu E. [Primary gastrointestinal lymphoma in patients infected with HIV: study of 15 cases in a series of 76 patients with non-Hodgkin's lymphoma and HIV infection]. Med Clin (Barc) 1999; 112:222-4. [PMID: 10191487] [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]
Abstract
BACKGROUND To analyze the main clinical and biological data and the response to therapy in 15 patients with primary gastrointestinal lymphoma (PGIL) from a series of 76 patients with HIV related non-Hodgkin's lymphoma (NHL) diagnosed in a single institution in a 13 years period. PATIENTS AND METHODS The main clinical, biological and evolutive data were recorded. Pathologic diagnosis of PGIL was made according to the REAL classification. Clinical stage was determined by the Ann Arbor system modified by Rohatiner et al. Response to therapy as well as overall survival (OS) were studied. Results were compared with non-PGIL HIV-related NHL patients. RESULTS Mean age of the series was 38 years. Thirteen patients were male, and 8 intravenous drug abusers. Then had bad performance status (ECOG 2-4) and 11 B symptoms. All patients had a high grade malignant PGIL and the localization was gastric in 10 cases. The most frequent symptoms were abdominal pain (11 cases), gastrointestinal bleeding (4) and dysphagia (3). Ten patients had advanced stages (IIE2-IV). The median CD4 cell count was lower in PGIL patients (92 x 10(6)/l vs 148 x 10(6)/l; p < 0.05). Thirteen patients received intensive chemotherapy with CHOP regimen (in 5 surgical procedures were previously made). Complete response (CR) was obtained in 4 patients (31%) and 1 of them relapsed. Median OS was 10 months vs 16 months non-PGIL HIV-related lymphoma patients (p < 0.05). CONCLUSIONS PGIL in HIV patients often presented advanced stages and high grade of malignancy. The most common localization is the stomach, and these patients usually have bad performance status and a low CD4 lymphocyte count. Response to therapy is poor. In our series OS was worse in PGIL patients than in the rest of HIV-related NHL, possibly due to the high degree of immunosuppression in the formers.
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Affiliation(s)
- J A Hernández
- Servicio de Hematología-Hemoterapia, Hospital Universitari Germans Trias i Pujol, Badalona
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Méndez JR, Felipo F, Jiménez C, Fernández-Figueras MT, Vaquero M. RICHTER'S SYNDROME WITH EXCLUSIVELY PRIMARY SKIN INVOLVEMENT. Am J Dermatopathol 1998. [DOI: 10.1097/00000372-199812000-00093] [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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39
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Casal M, Gutiérrez J, Vaquero M. [Clinical evaluation of a new non-radiometric automatic system for the rapid diagnosis of tuberculosis]. Rev Clin Esp 1998; 198:651-4. [PMID: 9844452] [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: 02/09/2023]
Abstract
BACKGROUND Tuberculosis (TB) is again a public health problem un many countries and is considered a re-emerging disease. The fastest possible diagnosis in our patients is essential for TB control programs. ESP is a non-radioactive, totally automated, continuously monitored system designed to detect mycobacteria. METHODS Clinical evaluation of this new system for the rapid diagnosis of tuberculosis. During 1997 a total of 1,022 clinical sputum specimens were investigated. Specimens were processed in triplicate for ESP, BACTEC 460 TB and Löwenstein-Jensen systems. The validity, isolates of Mycobacterium tuberculosis and time required for detecting M. tuberculosis by the three systems were determined. RESULTS The sensitivity, specificity, positive predictive and negative predictive values of the new systems were 98%, 99.8%, 98% and 99.8%, respectively. No significant differences were found between the recovery rates by the three systems. The mean time for detection was 10 days (range: 7-13 days) for specimens with positive bacilloscopy and 14 days (range: 10-28 days) for specimens with negative bacilloscopy. The difference was statistically significant between ESP and Löwenstein-Jensen, but not between ESP and BACTEC. CONCLUSIONS The new system proved to have an excellent sensitivity and specificity, which along with its total automation renders it a system of great clinical interest for the rapid diagnosis of TB and an alternative method for radiometric systems.
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Affiliation(s)
- M Casal
- Servicio de Microbiología Clínica, Hospital Universitario Reina Sofía, Córdoba
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40
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Cella D, Hernandez L, Bonomi AE, Corona M, Vaquero M, Shiomoto G, Baez L. Spanish language translation and initial validation of the functional assessment of cancer therapy quality-of-life instrument. Med Care 1998; 36:1407-18. [PMID: 9749663 DOI: 10.1097/00005650-199809000-00012] [Citation(s) in RCA: 171] [Impact Index Per Article: 6.6] [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: 11/25/2022]
Abstract
OBJECTIVES There is a need in the United States for culture-equivalent assessment of health-related quality of life, particularly among people who speak different languages and among those with low literacy skills. This report summarizes the adaptation of the Functional Assessment of Cancer Therapy (FACT) Scales for use with Spanish-speaking cancer patients, including those with low literacy. METHODS The Spanish language version of the general Functional Assessment of Cancer Therapy scale plus five disease-specific subscales (breast, lung, colorectal, head and neck, HIV infection) were translated, reviewed, and revised, then evaluated in interviews with Spanish-speaking patients from the mainland United States and Puerto Rico. An iterative forward-backward-forward sequence of item translation, expert bilingual/bicultural advisor review, pretesting interviews with 92 patients, and further expert advisory input were used to establish semantic, content, and partial technical equivalence. RESULTS The Functional Assessment of Cancer Therapy-General and five disease-specific subscales were translated successfully into wording that was easily understood and answered, leading to psychometric and scoring data similar to that of the English version. All but one of the 28 Functional Assessment of Cancer Therapy-General items and all of the disease-specific items were seen as culturally relevant. The result is a document that underwent iterative forward-backward translation and evaluation and was pretested successfully with native Spanish-speaking oncology patients living in the Central United States and Puerto Rico. CONCLUSIONS The Functional Assessment of Cancer Therapy-General and five disease-specific subscales have been translated successfully into Spanish using a thorough translation and initial validation methodology. The methods and data provide a model for preparing a health status questionnaire for cross-cultural validation. The questionnaire is available for use in clinical trials and clinical practice.
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Affiliation(s)
- D Cella
- Evanston Northwestern Healthcare, IL 60201, USA
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41
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Higueruelo S, Vaquero M, Pastor C, Galimany R, Romero R. Fosinopril ameliorates exogenous cholesterol-induced incipient glomerular lesions in obese Zucker rats. Effects on eicosanoid secretion. Nephrol Dial Transplant 1998; 13:2227-33. [PMID: 9761501 DOI: 10.1093/ndt/13.9.2227] [Citation(s) in RCA: 5] [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: 11/14/2022] Open
Abstract
BACKGROUND To date, the role of dietary cholesterol as a risk factor for some diabetic nephrophathy, such as mesangial expansion and glomerular lesions, is unknown. Controversy also exists regarding the effects of prostaglandin-induced changes in glomerular haemodynamics on the appearance of glomerulosclerosis. METHODS We have used obese Zucker rats (OZRs) as a model of early nephrophathy to evaluate the effect of hypercholesterolaemic diet on glomerular prostaglandin secretion and on the development of glomerular lesions. Due to the role of angiotensin II (Ang II) in glomerular haemodynamics, we have also evaluated its effects on glomerular eicosanoid secretion. Furthermore, as it has been suggested recently by clinical studies that angiotensin-converting enzyme inhibitors (ACEIs) reduce serum lipids associated with proteinuria, we have also evaluated the effect of the ACEI, fosinopril, both in vivo and in vitro, using 24 h glomeruli cultures. RESULTS Results showed that a cholesterol-rich diet significantly increased serum cholesterol, proteinuria and glomerular eicosanoid secretion, and caused macrophage-ED1 cell deposits in the glomerular mesangium. Segmentary lesions only appeared in those rats with the highest percentage of glomerular xanthomatous (macrophage-ED1) cells. Ang II, per se, caused a marked rise in glomerular prosaglandin E2 and thromboxane B2. The inhibition of Ang II synthesis with fosinopril reduced all the parameters listed above, whereas Ang II (10(-6)M) increased the secretion of TxB2 and tended to increase PGE2 secretion in glomerular culture. CONCLUSIONS In conclusion, exogenous cholesterol per se may contribute to nephropathy by increasing eicosanoid secretion, serum lipid profile, urinary protein excretion and the development of glomerular lesions. Fosinopril reduced all these parameters probably by its effects on Ang II.
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Affiliation(s)
- S Higueruelo
- Nephrology Department, Hospital Germans Trias i Pujol, Badalona, Spain
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42
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Romero R, Higueruelo S, Vaquero M, Biosca C, Martínez-Ocaña JC, Pastor C. Effects of polyunsaturated fatty acids on rat glomerulosclerosis induced by hypercholesterolaemic diet. Res Exp Med (Berl) 1998; 198:1-10. [PMID: 9706665 DOI: 10.1007/s004330050084] [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] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Association between lipids and renal disease has been reported recently. Its pathogenic mechanisms remain unknown. The aims of this study were to establish: (1) if a cholesterol-rich diet, alone or associated with nephrectomy, produces nephropathy; and (2) if a treatment with omega-3 polyunsaturated fatty acids (PUFA) reduces glomerulosclerotic lesions. Sixty Sprague-Dawley rats were randomized in two different groups: (A) sham operated rats and (B) uninephrectomized rats. Rats in both groups were divided into three subgroups (A1-3, B1-3) according to the diet they were fed: normal chow diet, cholesterol-rich diet (4.5%) or cholesterol-rich diet supplemented with omega-3 PUFA. Twenty weeks later, serum creatinine, creatinine clearance, serum cholesterol, triglycerides, albumin, proteinuria, mesangial cell score and focal glomerulosclerosis were assessed. Results showed that a cholesterol-rich diet significantly increased serum cholesterol, proteinuria and glomerular lesions and decreased creatinine clearance, especially in nephrectomized rats. Glomerular lesions, serum cholesterol and proteinuria ameliorated when cholesterol-rich diet was supplemented with PUFA. Hypertension was noticed only in nephrectomized rats following a normal chow diet. Simple correlation analysis showed that glomerulosclerosis correlated with renal weight, blood creatinine, cholesterol and proteinuria. In spite of some significant differences in urinary prostaglandins, no correlation with glomerular lesions was found. Multiple logistic regression analysis showed that cholesterol and proteinuria were independent risk factors for induction of glomerular sclerosis. In conclusion, a diet rich in cholesterol induces glomerulosclerosis, especially if it is associated with unilateral nephrectomy. Omega-3 PUFA administration reduces serum cholesterol, proteinuria and glomerular injury.
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Affiliation(s)
- R Romero
- Centro de Investigaciones Sanitarias y Experimentación Animal, Hospital Universitario Germans Trias i-Pujol, Badalona, Spain.
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43
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Navarro JT, Ribera JM, Oriol A, Vaquero M, Romeu J, Batlle M, Gómez J, Millá F, Feliu E. International prognostic index is the best prognostic factor for survival in patients with AIDS-related non-Hodgkin's lymphoma treated with CHOP. A multivariate study of 46 patients. Haematologica 1998; 83:508-13. [PMID: 9676023] [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: 02/08/2023] Open
Abstract
BACKGROUND AND OBJECTIVE The management of non-Hodgkin's lymphomas (NHL) in AIDS is difficult because of the poor bone marrow reserve and immunosuppression of these patients. Combination chemotherapy is the treatment of choice in the subset of patients with good performance status and mild immunosuppression. Several combination chemotherapy regimens have been used in these patients but the results have been poor. We have studied the clinical and biological features, response to treatment, outcome and prognostic factors of 46 patients with NHL and HIV infection, diagnosed in a single institution between January 1988 and June 1997. DESIGN AND METHODS Forty-six patients with NHL and HIV infection were treated with CHOP. Patients with previously treated systemic NHL, primary CNS NHL, performance status > 2 and active AIDS-defining opportunistic or neoplastic diseases were excluded. The parameters evaluated were: age, sex, risk activity, basic hematologic and biochemical parameters, CD4 lymphocyte count, B symptoms, stage (Ann Arbor), histologic subtype (REAL classification), International Prognostic Index (IPI), response to treatment, relative dose intensity (RDI), relapse free survival (RFS) and overall survival (OS). Uni- and multivariate analyses of prognostic factors were performed. RESULTS Median age was 35 years and 40 patients were male. CD4 lymphocyte count was lower than 0.1 x 10(9)/L in 18 out of 38 cases, hypoalbuminemia was registered in 24 (52%), serum LDH was higher than 400 U/L in 20 (43%) and beta 2-microglobulin was higher than the normal range in 9 out of 20 patients (45%). Complete response was achieved in 18 patients (40%). Twenty-six patients received G-CSF after chemotherapy. Grade 4 neutropenia and fever were significantly more frequent in patients who did not receive G-CSF. Serum LDH > 400 U/L and hypoalbuminemia were the only parameters associated with a lower probability to achieve complete response (p = 0.015 and p = 0.025, respectively). The median RFS was 26 (6-47) months and no variable was found to have statistically significant influence on it. The median OS was 9.2 (4.5-14) months, and IPI score 1 and ESR < 60 mm/h were the only parameters identified as good prognostic factors in the multivariate analysis (p = 0.03 and 0.049, respectively). INTERPRETATION AND CONCLUSIONS In spite of patient selection, the response to CHOP treatment in patients with NHL and HIV infection remains poor. Episodes of neutropenic fever are less frequent when G-CSF is administered after CHOP. The IPI score 1 is the most important favorable prognostic factor for survival.
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Affiliation(s)
- J T Navarro
- Hematology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
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44
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Aldea AI, Barnadas A, Tarrats A, Vaquero M, Muñoz C, Krugger M, Monzó M, Rosell R. [Analysis of telomeric length in epithelial carcinoma of the ovary]. Med Clin (Barc) 1998; 110:561-5. [PMID: 9650198] [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: 02/08/2023]
Abstract
BACKGROUND As a consequence of the high cell division rate, telomeric repeat reduction in human tumor cells, giving rise to genetic instability, has recently been described. The aim of this study was to analyze by Southern blot telomeric length alterations in a retrospective group of patients with ovarian epithelial carcinoma. PATIENTS AND METHODS Tumor and corresponding normal DNA were isolated from paraffin-embedded tissue of 16 patients with ovarian epithelial carcinoma. Telomeric Restriction Fragments (TRF) were studied by Southern blot and densitometric analysis. RESULTS No telomere alterations were detected in 37.5% of patients (6/16). Of the remaining ten, 5 were found to have telomere reduction and five telomere elongation. No significant correlation was found between clinicopathological variables, response to chemotherapy, survival rate or time to progression, and telomere length alterations. CONCLUSIONS In ovarian epithelial carcinoma telomere elongation may be a marker of the presence of immortal cells within the tumor, but telomere or the absence of telomeric alterations do not rule out the presence of these cells. Although TRF analysis can be performed in paraffin-embedded tissues, it is not the best indicator of telomerase activity and thus of tumor aggressiveness in early stages of this carcinoma.
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Affiliation(s)
- A I Aldea
- Laboratorio de Biología Molecular del Cáncer, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona
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45
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Hernández JA, Ribera JM, Oriol A, Batlle M, Vaquero M, Flores A, Fernández-Llamazares J, Piñol M, Millá F, Feliu E. [Primary gastrointestinal lymphomas: response to eradicative therapy and prognostic factors in 52 patients]. Med Clin (Barc) 1998; 110:45-50. [PMID: 9580161] [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: 02/07/2023]
Abstract
BACKGROUND To analyze the response to eradicative therapy and prognostic factors in 52 patients with primary gastrointestinal lymphoma (PGIL) diagnosed at a single institution in a 13 year period. PATIENTS AND METHODS The main clinical, biological and evolutive data were recorded. Pathologic diagnosis of PGIL was made according to the Working Formulation. Clinical stage was determined by the Ann Arbor system modified by Mushoff. The results of therapy as well as the influence of such characteristics on complete remission (CR), disease-free survival (DFS) and overall survival (OS) were studied. RESULTS Mean age of the series was 53 years (SD 15). Thirty patients were males. HIV infection preceded PGIL diagnosis in 10 cases. Seventeen had bad performance status (ECOG 2-4) and 30 B symptoms. The PGIL localization was gastric in 31 cases and 29 had a low grade malignant lymphoma. B phenotype was demonstrated in 98% and 22 patients presented advanced stages (IIE2-IV). Treatment was radical surgery followed by intensive chemotherapy in 32 cases, intensive chemotherapy alone in 17, and surgical resection in 3. CR was obtained in 34 patients and 6 of them relapsed. The projected DFS from CR at 9 years was 72% and OS was 26%. CR and survival were not influenced by PGIL localization and treatment type. The main unfavourable prognostic factors were advanced stage (CR and OS), B symptoms (DFS and OS) and advanced ECOG score (CR, DFS and OS). Previous HIV infection had an independent prognostic influence on both CR and OS. CONCLUSIONS In patients with PGIL, the achievement of CR, DFS and survival have been independent of the type of eradicative treatment used. Performance status, B symptoms and clinical stage have been the main prognostic factors. HIV infection carried an independent prognostic significance.
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Affiliation(s)
- J A Hernández
- Servicio de Hematología-Hemoterapia, Hospital Universitari Germans Trias i Pujol, Badalona
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Abstract
Although primary ocular lymphomas may be found in the conjunctiva, eye lids and lacrimal glands, the majority nevertheless occur in the orbit. Only a few cases of primary conjunctival lymphoma have been described in the literature. A 68-year-old man presented with a painless swelling of the epibulbar conjunctiva of the right eye. A diffuse lymphoid infiltrate consisting of small-sized lymphoid cells with the morphology and distribution characteristics of mucosa-associated lymphoid tissue was observed. Immunohistological study demonstrated the B lymphocyte lineage of tumor cells and Bcl-1 and bcl-2 rearrangements were negative. After clinical staging including thoracic, abdominal, brain and orbital CT scans, fiberoptic gastroscopy and bone marrow biopsy, no other foci of this lymphoma were found. Radiation therapy was given and the patient currently remains free of lymphoma 30 months after diagnosis.
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Affiliation(s)
- R Calvo
- Hematology Department, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
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47
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Hernández JA, Ribera JM, Martí S, Vaquero M. [Ki-1 (CD30) positive Large cell anaplastic lymphoma located in the anus in a female patient with human immunodeficiency virus infection]. Med Clin (Barc) 1997; 109:645-6. [PMID: 9463142] [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: 02/06/2023]
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48
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Holgado C, de la Vega J, Rico M, Aznar A, Fabiani F, Vaquero M. 2.P.252 HDL-cholesterol after surgery for aorto-coronary grafts. Atherosclerosis 1997. [DOI: 10.1016/s0021-9150(97)88892-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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49
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Vela D, Ribera JM, Florensa R, Arellano A, Vaquero M, Batlle M, Flores A, Millá F, Feliu E. [Spinal cord compression in non-Hodgkin's lymphoma. A study of 10 patients]. Med Clin (Barc) 1997; 109:375-7. [PMID: 9379720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Spinal cord compression is an infrequent event in patients with non-Hodgkin's lymphomas (NHL) and early diagnosis and therapy are required. The main clinical and histologic characteristics as well as the response to therapy in 10 NHL patients with spinal cord compression diagnosed at a single center in a 7-year period are referred. The main initial clinical manifestations were pain in dorsal or lumbar regions (5 cases) and paraparesia or paraplegia (5 patients). Infection by human immunodeficiency virus (HIV) was present in four cases. In 8 patients spinal cord compression was the initial manifestation of NHL. Pathologic diagnosis showed intermediate or high-grade lymphoma in 8 out of 10 cases and immunologic phenotype was B-cell in all cases. Laminectomy followed by radiation therapy and chemotherapy was performed in 4 cases, radiotherapy and chemotherapy in two, isolated chemotherapy in 3 and radiation therapy was administered to the remaining case. Complete response was observed in 4 cases and 6 cases were resistant to treatment. No patient with HIV infection responded to treatment. Six patients had died, median survival time for the whole series being 4 months, and the actuarial probability of survival was 40% at the first year.
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Affiliation(s)
- D Vela
- Servicio de Hematología, Hospital Universitario Germans Trias i Pujol, Universidad Autónoma de Barcelona
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50
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Vaquero M. [Atherosclerosis: a dynamic disease of the arterial intima with a chronic evolution in a predictable phase and an unpredictable phase]. Med Clin (Barc) 1997; 109:229-35. [PMID: 9289555] [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: 02/05/2023]
Affiliation(s)
- M Vaquero
- Servicio de Anatomía Patológica, Hospital Universitario Germans Trias i Pujol, Badalona, Barcelona
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