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Haredasht SA, Taylor CJ, Maes P, Verstraeten WW, Clement J, Barrios M, Lagrou K, Van Ranst M, Coppin P, Berckmans D, Aerts JM. Model-Based Prediction of Nephropathia Epidemica Outbreaks Based on Climatological and Vegetation Data and Bank Vole Population Dynamics. Zoonoses Public Health 2012; 60:461-77. [DOI: 10.1111/zph.12021] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Izumi N, Ma T, Barrios M, Benedetti LR, Callahan D, Cerjan C, Edwards J, Glenn S, Glenzer S, Kilkenny J, Kline J, Kyrala G, Landen OL, Regan S, Springer P, Suter L, Tommasini R, Town R, Mackinnon AJ, Bell P, Bradley DK. Measurement of electron temperature of imploded capsules at the National Ignition Facility. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:10E121. [PMID: 23126943 DOI: 10.1063/1.4738660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The electron and ion temperatures of the imploded core plasma are two of the most important metrics of inertial confinement fusion experiments. We have developed a technique for inferring electron temperatures from the contrast of x-ray images observed through a group of x-ray filters. Generally, the plasma electron temperature exhibits spatial and temporal variations, so time-averaged and time-resolved measurements are expected to yield somewhat different results. By analyzing the intensity of images observed with both a time-integrated detector (imaging plates) and a time-resolved detector (gated micro-channel plate), we found the electron temperature observed from x-ray images to be systematically higher than the ion temperature inferred from fusion neutron spectroscopy.
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Barrios M, Taylor P, Rodríguez-Acosta A, Sánchez EE, Arocha-Piñango CL, Gil A, Salazar AM, Carvajal Z, Abad MJ, Guerrero B. A mouse model to study the alterations in haemostatic and inflammatory parameters induced by Lonomia achelous caterpillar haemolymph. Toxicon 2012; 59:547-54. [PMID: 22310207 DOI: 10.1016/j.toxicon.2012.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Revised: 01/17/2012] [Accepted: 01/18/2012] [Indexed: 11/30/2022]
Abstract
A mouse model was established to reproduce the haemorrhagic syndrome which occurs in humans after accidental contact with the hairs of the caterpillar Lonomia achelous (LA) and measures the haemostatic and inflammatory alterations that occur as a result of this contact. Mice were injected intradermally with different doses (0.4, 0.8 and 1.6 mg/animal) of L. achelous haemolymph (LAH). Haematological (haemoglobin, haematocrit, platelet count, differential leukocyte count), haemostatic (fibrinogen, plasminogen, factor XIII [FXIII], fibrinolytic activity) and inflammatory parameters (tumour necrosis factor alpha [TNF-α], nitric oxide [NO]) were measured at different times up to 48 h. C57BL/6 mice responded to LAH injection, in terms of these parameters, in a manner similar to that seen in humans, whereas the BALB/c mice were unresponsive. In C57BL/6 mice injected with LAH, time course measurements showed: a) a reduction in the haemoglobin, haematocrit, fibrinogen, FXIII and plasminogen levels, b) no effect on the platelet count and c) immediate leukocytosis and an increase in the fibrinolytic activity in plasma. An inflammatory response (TNF-α) was observed within 1 h post-injection, followed by a more persistent increase in serum NO. These findings suggest that C57BL/6 mice represent a useful model of the haemorrhagic syndrome observed in humans who have suffered contact with the caterpillar, permitting a deeper understanding of the role of the inflammatory response in the haematological and haemostatic manifestations of this syndrome.
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Quintero A, Fabbro R, Maillo M, Barrios M, Milano MB, Fernández A, Williams B, Michelangeli F, Rangel HR, Pujol FH. Inhibition of hepatitis B virus and human immunodeficiency virus (HIV-1) replication by Warscewiczia coccinea (Vahl) Kl. (Rubiaceae) ethanol extract. Nat Prod Res 2011; 25:1565-9. [PMID: 21827337 DOI: 10.1080/14786419.2010.535164] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The primary objective of this study was to search for natural products capable of inhibiting hepatitis B virus (HBV) replication. The research design, methods and procedures included testing hydro-alcoholic extracts (n = 66) of 31 species from the Venezuelan Amazonian rain forest on the cell line HepG2 2.2.15, which constitutively produces HBV. The main outcomes and results were as follows: the species Euterpe precatoria, Jacaranda copaia, Jacaranda obtusifolia, Senna silvestris, Warscewiczia coccinea and Vochysia glaberrima exerted some degree of inhibition on HBV replication. The leaves of W. coccinea showed a significant antiviral activity: 80% inhibition with 100 µg mL⁻¹ of extract. This extract also exerted inhibition on covalently closed circular deoxyribonucleic acid (cccDNA) production and on HIV-1 replication in MT4 cells (more than 90% inhibition with 50 µg mL⁻¹ of extract). Initial fractionation using organic solvents of increasing polarity and water showed that the ethanol fraction was responsible for most of the antiviral inhibitory activities of both the viruses. It was concluded that Warscewiczia coccinea extract showed inhibition of HBV and HIV-1 replication. Bioassay-guided purification of this fraction may allow the isolation of an antiviral compound with inhibitory activity against both viruses.
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Haredasgt SA, Barrios M, Maes P, Clement J, Lagrou K, Ranst MV, Coppin P, Berckmans D, Aerts JM. P1-387 Time series analysis performed on nephropathia epidemica in Belgium. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976f.78] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Miralbell J, Soriano JJ, López-Cancio E, Arenillas JF, Dorado L, Barrios M, Cáceres C, Alzamora MT, Torán P, Pera G, Dávalos A, Mataró M. [Vascular risk factors and cognitive performance in patients 50 to 65 years-old]. Neurologia 2010; 25:422-429. [PMID: 20964988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
INTRODUCTION Vascular risk factors (VRF) have been related to cognitive deficits and an increased risk of dementia. Cognitive impairment is considered to be one of the earliest manifestations of cerebrovascular disease. In Spain there is a high prevalence of VRF, but also one of the lowest incidences of cerebrovascular disease in Europe. This is the first study that investigates the relationship between VRF and cognition in a Spanish sample. METHODS A total of 90 people aged between 50-65 years with a low-to-moderate cardiovascular risk underwent a neuropsychological evaluation. None of them had a history of cardiovascular disease. The battery included tests assessing executive, attentional, mnesic, visuospatial and motor-speed/coordination functions. We used correlation and inter-groups comparison to relate VRF to multiple cognitive domains0120. RESULTS Higher stroke risk was significantly related to a lowered profile in visuo-constructive functions and motor-speed/coordination. Moreover, the group with moderate cardiovascular risk showed a lower performance in visuoconstructive functions compared to the low-risk group. After statistical adjustment for age, sex and years of scholarship VRF were only related to motor-speed/coordination. CONCLUSIONS In healthy, middle-aged adults, VRF are related with impairment in two cognitive domains. This effect is slight and tends to appear in people with moderate cardiovascular risk.
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Miralbell J, Soriano J, López-Cancio E, Arenillas J, Dorado L, Barrios M, Cáceres C, Alzamora M, Torán P, Pera G, Dávalos A, Mataró M. Factores de riesgo vascular y rendimiento cognitivo en personas de 50 a 65 años. Neurologia 2010. [DOI: 10.1016/j.nrl.2010.02.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Daskalaki M, Rojo P, Marin-Ferrer M, Barrios M, Otero JR, Chaves F. Panton-Valentine leukocidin-positive Staphylococcus aureus skin and soft tissue infections among children in an emergency department in Madrid, Spain. Clin Microbiol Infect 2010; 16:74-7. [PMID: 19519839 DOI: 10.1111/j.1469-0691.2009.02830.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Fifty-three children who attended the emergency department with community-associated (CA) Staphylococcus aureus skin and soft tissue infections (SSTIs) were enrolled in the study. Seven cases of infection (13.2%) were due to methicillin-resistant S. aureus (MRSA). Twelve of 46 available isolates (26.1%) were Panton-Valentine leukocidin (PVL)-positive. PVL-positive S. aureus SSTIs were more frequently associated with abscesses and cellulitis (75% vs. 38%, p 0.028), and more commonly required incision and drainage (75% vs. 21%, p 0.001). Most PVL-positive CA-MRSA isolates belonged to a single multilocus sequence type (ST8). In contrast, PVL-positive methicillin-susceptible S. aureus isolates belonged to four different sequence types (ST8, ST30, ST80, ST120).
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Urbina F, Sudy E, Barrios M. Foliculitis por tracción: seis casos producidos por diferentes tipos de peinado tirante. ACTAS DERMO-SIFILIOGRAFICAS 2009. [DOI: 10.1016/s0001-7310(09)71598-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Urbina F, Sudy E, Barrios M. [Traction folliculitis: 6 cases caused by different types of hairstyle that pull on the hair]. ACTAS DERMO-SIFILIOGRAFICAS 2009; 100:503-506. [PMID: 19709556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
Excessive hair traction caused by hairstyles that pull the hair too tightly may cause noninfectious mechanical and irritant folliculitis known as traction folliculitis. We present a series of 6 cases of traction folliculitis caused by different hairstyles. All patients were women aged between 12 and 26 years old. Their hairstyles were braids, ponytails, pigtails, cornrows, and hair extensions in 2 patients. The lesions consisted of small, slightly painful, follicular pustules confined to the sites of maximum hair traction and surrounded by erythema. Only in 1 case were the lesions associated with traction alopecia. In 2 cases in which bacterial cultures were done, Staphylococcus aureus was isolated. All patients improved after undoing their hairstyle and treatment with oral flucloxacillin. We assume that the role of S aureus is secondary and opportunistic, given that only follicles subject to traction and not the adjacent ones were affected.
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Moliner-Martínez Y, Barrios M, Cárdenas S, Valcárcel M. Comparative study of carbon nanotubes and C60 fullerenes as pseudostationary phases in electrokinetic chromatography. J Chromatogr A 2008; 1194:128-33. [DOI: 10.1016/j.chroma.2008.04.034] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2008] [Revised: 04/08/2008] [Accepted: 04/16/2008] [Indexed: 11/26/2022]
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Roman-Gomez J, Jimenez-Velasco A, Agirre X, Castillejo JA, Navarro G, Garate L, Jose-Eneriz ES, Cordeu L, Barrios M, Prosper F, Heiniger A, Torres A. Promoter hypermethylation and global hypomethylation are independent epigenetic events in lymphoid leukemogenesis with opposing effects on clinical outcome. Leukemia 2006; 20:1445-8. [PMID: 16688225 DOI: 10.1038/sj.leu.2404257] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Jiménez-Velasco A, Román-Gómez J, Agirre X, Barrios M, Navarro G, Vázquez I, Prósper F, Torres A, Heiniger A. Downregulation of the large tumor suppressor 2 (LATS2/KPM) gene is associated with poor prognosis in acute lymphoblastic leukemia. Leukemia 2006; 19:2347-50. [PMID: 16208412 DOI: 10.1038/sj.leu.2403974] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Jiménez-Velasco A, Barrios M, Román-Gómez J, Navarro G, Buño I, Castillejo JA, Rodríguez AI, García-Gemar G, Torres A, Heiniger AI. Reliable quantification of hematopoietic chimerism after allogeneic transplantation for acute leukemia using amplification by real-time PCR of null alleles and insertion/deletion polymorphisms. Leukemia 2005; 19:336-43. [PMID: 15674363 DOI: 10.1038/sj.leu.2403622] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Increasing mixed chimerism (MC) after allogeneic stem cell transplantation (SCT) has been associated with a high risk of relapse in acute leukemia. We evaluated a new method for chimerism detection, based on the quantitative real-time PCR (qrt-PCR) amplification of null alleles or insertion/deletion polymorphisms (indels). All qrt-PCR assays with null alleles and indels attained a sensitivity of at least 10(-4), as well as good intra- and interassay concordance, and a high accuracy in experiments with cell mixtures. Informativeness was found in 80.3% of the 61 donor/recipient pairs tested. Nonrelapsed patients showed a progressive decrease in peripheral blood chimerism to values below 0.01% (complete chimerism (CC)). Bone marrow chimerism failed to reach CC more than 4 years after SCT. Increasing MC was observed prior to relapse in 88.2% of patients. Compared with conventional PCR amplification of variable number of tandem repeats, qrt-PCR predicted a significantly higher number of relapses (88.2 vs 44.4%) with a median anticipation period of 58 days. In conclusion, chimerism determination by qrt-PCR amplification of null alleles and indels constitutes a useful tool for the follow-up of patients with acute leukemia after SCT, showing better results than those obtained with conventional PCR.
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Roman-Gomez J, Jimenez-Velasco A, Agirre X, Castillejo JA, Navarro G, Barrios M, Andreu EJ, Prosper F, Heiniger A, Torres A. Transcriptional silencing of the Dickkopfs-3 (Dkk-3) gene by CpG hypermethylation in acute lymphoblastic leukaemia. Br J Cancer 2004; 91:707-13. [PMID: 15226763 PMCID: PMC2364778 DOI: 10.1038/sj.bjc.6602008] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Dkk-3 is a newly characterised mortalisation-related gene and an antagonist of the Wnt oncogenic signalling pathway whose expression is decreased in a variety of cancer cell lines, suggesting that the Dkk-3 gene, located at chromosome 11p15.1, functions as a tumour suppressor gene. Although 11p15 is a ‘hot spot’ for methylation in acute lymphoblastic leukaemia (ALL), the role of Dkk-3 abnormalities has never been evaluated in this disease. We analysed CpG island methylation of the Dkk-3 promoter in six ALL cell lines and 183 ALL patients. We observed Dkk-3 hypermethylation in all cell lines and in cells from 33% (60/183) of ALL patients. Moreover, Dkk-3 methylation was associated with decreased Dkk-3 mRNA expression and this expression was restored after exposure to the demethylating agent 5-AzaC. Clinical features did not differ between hypermethylated and unmethylated patients. Estimated disease-free survival (DFS) and overall survival at 10 and 11 years, respectively, were 49.8 and 45.6% for normal patients and 10.5 and 15.1% for hypermethylated patients (P=0.001 and 0.09). Multivariate analysis demonstrated that Dkk-3 methylation was an independent prognostic factor predicting DFS (P=0.0009). Our data suggest that Dkk-3 methylation occurs at an early stage in ALL pathogenesis and probably influences the clinical behaviour of the disease.
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MESH Headings
- Adaptor Proteins, Signal Transducing
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Cell Transformation, Neoplastic
- Chemokines
- Child
- Child, Preschool
- Chromosomes, Human, Pair 11/genetics
- CpG Islands
- DNA Methylation
- DNA, Neoplasm/metabolism
- Female
- Gene Silencing
- Humans
- Infant
- Intercellular Signaling Peptides and Proteins
- Male
- Middle Aged
- Multivariate Analysis
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics
- Prognosis
- Promoter Regions, Genetic
- Protein Biosynthesis
- Proteins/genetics
- Survival Analysis
- Transcription, Genetic
- Tumor Cells, Cultured
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Alliot C, Barrios M. Oxaliplatin- or irinotecan-based chemotherapy for metastatic colorectal cancer in the elderly. Br J Cancer 2004; 90:2050-1; author reply 2051-2. [PMID: 15138493 PMCID: PMC2409475 DOI: 10.1038/sj.bjc.6601805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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Sutil de Naranjo R, Marquez M, Barrios M, Chemello F, Torres M, Yepez C, Hernandez N. W01.126 Risk factors for atherosclerosis in children with family history of premature coronary artery disease. ATHEROSCLEROSIS SUPP 2004. [DOI: 10.1016/s1567-5688(04)90125-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Roman-Gomez J, Jimenez-Velasco A, Agirre X, Castillejo JA, Barrios M, Andreu EJ, Prosper F, Heiniger A, Torres A. The normal epithelial cell-specific 1 (NES1) gene, a candidate tumor suppressor gene on chromosome 19q13.3-4, is downregulated by hypermethylation in acute lymphoblastic leukemia. Leukemia 2004; 18:362-5. [PMID: 14628074 DOI: 10.1038/sj.leu.2403223] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Barrios M, Bouaicha M, Alliot C. Maladie de Biermer et thrombose veineuse.À propos de deux cas. Rev Med Interne 2003. [DOI: 10.1016/s0248-8663(03)80589-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Barrios M, Alliot C, Durigon F, Bouaicha M. Encéphalopathie sous céfépime en contexted'insuffisance rénale aiguë. Rev Med Interne 2003. [DOI: 10.1016/s0248-8663(03)80630-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Barrios M, Beets C, Alliot C. Anticoagulant circulant et cancer du rein. À propos de cinq cas. Rev Med Interne 2003. [DOI: 10.1016/s0248-8663(03)80600-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Alliot C, Durigon F, Barrios M. Febrile pancytopenia and psychosis revealing pernicious anemia. Minerva Med 2003; 94:187-90. [PMID: 14605599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
The rare case of a 42-year-old woman of African origin presenting with persecution mania leading to admission to a psychiatric hospital is reported. The outcome was rapidly marked by febrile pancytopenia and ataxia leading to the diagnosis of pernicious anemia. Although the hematologic abnormalities and mania were corrected within 2 weeks under vitamin therapy, neural improvement was slower as observed classically. The literature regarding pancytopenia and psychiatric presentations is briefly reviewed, suggesting that vitamin B(12) deficiency may induce paranoid delusion.
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Alliot C, Messouak D, Albert F, Barrios M. Correction of thrombocytopenia with aspirin in the primary antiphospholipid syndrome. Am J Hematol 2001; 68:215. [PMID: 11754406 DOI: 10.1002/ajh.1182] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Barrios M, Guàrdia J. [Relation of the cerebellum with cognitive function: neuroanatomical, clinical and neuroimaging evidence]. Rev Neurol 2001; 33:582-91. [PMID: 11727244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
INTRODUCTION Published studies in the last decades, employing a variety of methodologies, suggest that the cerebellum function is not only limited to motor control but also has an important role in cognition and emotion. DEVELOPMENT In the present paper we review the main neuroanatomical and functional neuroimaging studies supporting the idea that the cerebellum has a role in non motor behavior. On the other hand, we expound the results of the neuropsychological studies of patients with cerebellar lesions. The deficits showed after cerebellar lesions include disturbances in executive functions, learning, memory, attention, visuo-spatial functions, language and personality change. Some studies propose that the cerebellum, through its afferent and efferent circuits with the cerebrum, perform a global function capable to influencing motor behavior, in cognitive functions and in emotion. A fault in this function would cause the behavioral deficits shown in patients with cerebellar lesions. CONCLUSION The evidence available in the anatomical, functional and clinical studies support the conclusion that the cerebellum participates not only in motor functions, but also in cognitive functions and in emotion.
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Roman J, Jimenez A, Barrios M, Castillejo JA, Maldonado J, Torres A. E1A3 as a unique, naturally occurring BCR-ABL transcript in an indolent case of chronic myeloid leukaemia. Br J Haematol 2001; 114:635-7. [PMID: 11552990 DOI: 10.1046/j.1365-2141.2001.02971.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A woman with Ph-positive chronic myeloid leukaemia (CML) with an atypical e1a3 BCR-ABL hybrid gene is described. To our knowledge, this is the first report of this transcript type as a unique naturally occurring BCR-ABL fusion in a CML patient. This case was characterized by a low leucocyte count and a very indolent course without treatment. Because the deletion of ABL exon 2 sequences results in deletion of an essential part of the ABL SH3 domain, our case suggests that this ABL SH3 domain is not absolutely necessary for efficient induction of a myeloproliferative disease in the context of BCR-ABL/p190.
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