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Barrios L, Chamlin S, Keppler-Noreuil KM, Rialon KL, Austin P, Alhajjat A, Bowen D, Metry DW, Siegel DH. LUMBAR syndrome-OEIS complex overlap: A case series and review. Am J Med Genet A 2024:e63582. [PMID: 38450833 DOI: 10.1002/ajmg.a.63582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/13/2024] [Accepted: 02/21/2024] [Indexed: 03/08/2024]
Abstract
We present three new and six published infants with overlapping features of LUMBAR syndrome (lower body hemangioma, urogenital anomalies, spinal cord malformations, bony deformities, anorectal/arterial anomalies and renal anomalies) and OEIS complex (omphalocele, exstrophy, imperforate anus, and spinal defects), also known as cloacal exstrophy. OEIS is included under the recently proposed umbrella coined recurrent constellations of embryonic malformations (RCEMs). The RCEMs represent a phenotypically overlapping spectrum of rare disorders of caudal dysgenesis with unknown cause but likely shared pathogenesis. It has recently been proposed that LUMBAR be considered an RCEM. This report of infants with combined features of OEIS and LUMBAR is the first to demonstrate an overlap between LUMBAR and another RCEM, which supports LUMBAR's inclusion within the RCEM spectrum.
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Affiliation(s)
- L Barrios
- University of California-Davis, Davis, California, USA
| | - S Chamlin
- Department of Dermatology, Ann & Robert H. Lurie Children's Hospital, Northwestern Feinberg School of Medicine, Chicago, Illinois, USA
| | - Kim M Keppler-Noreuil
- Department of Pediatrics, Division of Genetics & Metabolism, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - K L Rialon
- Department of Surgery, Division of Pediatric Surgery, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - Paul Austin
- Department of Urology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - A Alhajjat
- Department of Surgery, Ann & Robert H. Lurie Children's Hospital, Northwestern Feinberg School of Medicine, Chicago, Illinois, USA
| | - D Bowen
- Department of Urology, Ann & Robert H. Lurie Children's Hospital, Northwestern Feinberg School of Medicine, Chicago, Illinois, USA
| | - Denise W Metry
- Department of Dermatology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - D H Siegel
- Department of Dermatology, and by Courtesy, Pediatrics, Stanford University, School of Medicine, Palo Alto, California, USA
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Orozco J, Rico D, Barrios L, Hoyos V, Blanco P. Histological artifacts associated with laser and electroscalpel gingivectomy: Case series. Biomedica 2023; 43:315-322. [PMID: 37871565 PMCID: PMC10617660 DOI: 10.7705/biomedica.6930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 08/23/2023] [Indexed: 10/25/2023]
Abstract
Introduction. Over time, efforts have been invested in the design of new instruments that overcome the disadvantages of the gold standard instrument in surgery, the scalpel. As a result, electronic equipment has emerged such as the electric scalpel and laser devices. The available evidence on these instruments suggests that the tissue response is related to each instrument’s physical and biological cutting principles. Objective. To compare the histological changes in gingiva samples associated with surgical cutting performed with a 940 nm diode laser, a 2780 nm erbium, chromium: yttriumscandium-gallium-garnet (Er,Cr:YSGG) laser, and an electric scalpel, by presenting a series of cases. Case presentation. We present three cases of healthy patients undergoing cosmetic surgery. The clinical examination revealed exposure of a keratinized gingiva band greater than 4 mm, normal color and texture in gingival tissue, with a firm consistency and no bleeding on periodontal probing. Gingivectomy was indicated with the following protocols: Diode laser of 940 nm at 1 W, in continuous mode; Er,Cr:YSGG laser of 2780 nm at 2.5 W, 75 Hz, H mode, air 20, water 40, gold tip MT4); and electric scalpel in cutting mode at power level four. Gingival tissue samples were taken and stored in 10% formaldehyde for histological analysis. Conclusion. All the evaluated cutting instruments generated histological changes produced by the thermal effect, the main ones being collagen coagulation and carbonization. The depth of thermal damage caused by the 2780 nm Er,Cr:YSGG laser was much lesser than that induced by the electric scalpel and the 940 nm diode laser.
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Affiliation(s)
- Jennifer Orozco
- Programa de Odontología, Corporación Universitaria Rafael Núñez, Cartagena, Colombia.
| | - David Rico
- Programa de Odontología, Corporación Universitaria Rafael Núñez, Cartagena, Colombia.
| | - Lía Barrios
- Grupo de Histopatología, Facultad de Medicina, Universidad de Cartagena, Cartagena, Colombia.
| | - Vivi Hoyos
- Programa de Odontología, Corporación Universitaria Rafael Núñez, Cartagena, Colombia.
| | - Pilar Blanco
- Medical Laser Latinoamérica, Santa Marta, Colombia.
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Barrios L, Droogne W, Stassen J, Van Aelst L, Gabor V, Van Cleemput J. Late Graft Dysfunction after Heart Transplantation: A Single Centre Experience. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.545] [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: 04/05/2023] Open
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4
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Pascual JM, Carrasco R, Barrios L, Prieto R. Duct-like Recess in the Infundibular Portion of Third Ventricle Craniopharyngiomas: An MRI Sign Identifying the Papillary Type. AJNR Am J Neuroradiol 2022; 43:1333-1340. [PMID: 35953277 PMCID: PMC9451635 DOI: 10.3174/ajnr.a7602] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 06/20/2022] [Indexed: 01/26/2023]
Abstract
BACKGROUND AND PURPOSE Papillary craniopharyngiomas (PCPs) are particularly challenging lesions requiring accurate diagnosis to plan the best therapy. Our aim was to define a narrow duct-like recess identified on MR imaging at the base of papillary craniopharyngiomas with a strict third ventricle location. MATERIALS AND METHODS A duct-like recess at the infundibular portion of craniopharyngiomas was observed on conventional T1WI and T2WI in 3 strict third ventricle papillary craniopharyngiomas in our craniopharyngioma series (n = 125). We systematically investigated this finding on the MR imaging of 2582 craniopharyngiomas and 10 other categories of third ventricle tumors (n = 690) published in the modern era (1986-2020). The diagnostic value and significance of this finding are addressed. RESULTS The duct-like recess was recognized in 52 papillary craniopharyngiomas, including 3 of our own cases, as a narrow canal-shaped cavity invaginated at the tumor undersurface, just behind the optic chiasm. This structure largely involves papillary craniopharyngiomas with a strict third ventricle topography (96%), follows the same diagonal trajectory as the pituitary stalk, and finishes at a closed end. The duct-like recess sign identifies the papillary craniopharyngioma type with a specificity of 100% and a sensitivity of 38% in the overall craniopharyngioma population. This finding can also establish the strictly intra-third ventricle location of the lesion with a 90% specificity and 33% sensitivity. These recesses appear as hypointense circular spots on axial/coronal T1WI and T2WI. Their content apparently corresponds to CSF freely flowing within the suprasellar cistern. CONCLUSIONS The presence of a duct-like recess at the infundibular portion of a third ventricle tumor represents a distinctive hallmark of papillary craniopharyngiomas that can be used as a simple MR imaging sign to reliably diagnose these lesions.
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Affiliation(s)
- J M Pascual
- From the Department of Neurosurgery (J.M.P), La Princesa University Hospital, Madrid, Spain
| | - R Carrasco
- Department of Neurosurgery (R.C.), Ramón y Cajal University Hospital, Madrid, Spain
| | - L Barrios
- Statistics Department (L.B.), Computing Center, Spanish National Research Council, Madrid, Spain
| | - R Prieto
- Department of Neurosurgery (R.P.), Puerta de Hierro University Hospital, Madrid, Spain
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González MG, González J, Valcárcel F, Sánchez M, Tercero JM, Barrios L, Olmeda AS. Seasonal Dynamics of Fleas (Siphonaptera: Pulicidae, Ceratophyllidae and Leptopsyllidae) on Oryctolagus cuniculus in a Meso-Mediterranean Area of Central Spain. J Med Entomol 2021; 58:1740-1749. [PMID: 33822180 DOI: 10.1093/jme/tjab033] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Indexed: 06/12/2023]
Abstract
Flea infestations of wild rabbits were examined monthly in central Spain in a meso-Mediterranean area for 5 yr. A total of 1,180 wild rabbits were trapped and 7,022 fleas were collected from them. Overall, the prevalence was 74.1% with a mean flea index of 5.95 fleas per rabbit. Four flea species were identified: Spilopsyllus cuniculi (Dale, 1878) was the most abundant species (accounting for 74.3% of fleas collected) followed by Xenopsylla cunicularis (Smit, 1957), Odontopsyllus quirosi (Gil Collado, 1934), and Nosopsyllus fasciatus (Bosc, 1800) (18.9, 6.7, and 0.1%, respectively). The highest prevalence was observed in S. cuniculi (48.6%) followed by X. cunicularis, O. quirosi, and N. fasciatus (34.3, 20.0, and 0.6%, respectively). Odontopsyllus quirosi and S. cuniculi were mainly collected from autumn to spring with the peak of infestation in winter, while X. cunicularis was mainly found from spring to autumn with maximum levels of infestation during the summer months. The relevance of these findings is discussed.
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Affiliation(s)
- M G González
- Villamagna S.A., Finca 'La Garganta', 14440 Villanueva de Córdoba, Spain
- Grupo de Parasitología Animal, Animalario del Departamento de Reproducción Animal, INIA, Madrid, Spain
| | - J González
- Villamagna S.A., Finca 'La Garganta', 14440 Villanueva de Córdoba, Spain
- Center for Vector Biology, Department of Entomology, Rutgers University, New Brunswick, NJ, USA
| | - F Valcárcel
- Grupo de Parasitología Animal, Animalario del Departamento de Reproducción Animal, INIA, Madrid, Spain
| | - M Sánchez
- Villamagna S.A., Finca 'La Garganta', 14440 Villanueva de Córdoba, Spain
- Grupo de Parasitología Animal, Animalario del Departamento de Reproducción Animal, INIA, Madrid, Spain
| | - J M Tercero
- Villamagna S.A., Finca 'La Garganta', 14440 Villanueva de Córdoba, Spain
| | - L Barrios
- Statistics Department, Computing Center, CSIC, Madrid, Spain
| | - A S Olmeda
- Departamento de Sanidad Animal, Facultad de Veterinaria, UCM, Madrid, Spain
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Sciabarrasi A, Marengo R, Cornejo A, Torrents J, Imoberdorf P, Banega D, Alvez G, Barrios L, Torretta R, Medina M, Detarsio S, Pelosi MC, Schachner L, Garello D, Eichman L, Sosa MF. Gastrointestinal parasites found in Psittacids of the genera Amazona sp, Ara sp, Aratinga so Forpus sp and macaw hybrids of the La Esmeralda Biological Station, Santa Fe, Argentina. Compend cienc vet 2020. [DOI: 10.18004/compend.cienc.vet.2020.10.01.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Benedetti I, Hoyos J, Barrios L. Cyclooxigenase-2 and osteopontin in gastric pre-neoplastic lesions in relation to H-pylori infection and grade of inflammation. Rev Esp Patol 2020; 53:79-87. [PMID: 32199598 DOI: 10.1016/j.patol.2019.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/20/2019] [Accepted: 06/13/2019] [Indexed: 02/07/2023]
Abstract
The association between Helicobacter-pylori-induced inflammation and gastric adenocarcinoma is well documented and it has been suggested that the pro-mitotic and apoptotic effect of Cyclooxygenase-2 and Osteopontin on the epithelial cells of the gastric mucosa may have a role in carcinogenesis of the gastric mucosa. The aim of this study was to determine the expression of Cyclooxygenase-2 and Osteopontin in normal gastric mucosa, mucosa with gastritis and gastric mucosa with intestinal metaplasia, in relation to Helicobacter-pylori infection and grade of inflammation. Immunohistochemistry was performed on 108 gastric biopsies in order to detect Cyclooxygenase-2 and Osteopontin expression. The intensity and percentage of staining were evaluated using the H-Score, and its association with grade of inflammation, Helicobacter pylori infection and intestinal metaplasia was determined. Expression of Cyclooxygenase-2 and Osteopontin was higher in gastric biopsies (values shown respectively) with Helicobacter-pylori infection (179.9/142.3), intestinal metaplasia (208.8/179.3) or higher grades of inflammation (190/135.7) in comparison to normal gastric mucosa (100.7/80) or mild grade of inflammation (128.4/128.4), (p<0.05).There is an overexpression of Cyclooxygenase-2 and Osteopontin in gastric mucosa with H. pylori infection, intestinal metaplasia and high grades of inflammation, suggesting a constant up-regulation of protein expression in response to the inflammatory process generated by a Helicobacter-pylori infection, leading to the development of intestinal metaplasia.
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Affiliation(s)
- Inés Benedetti
- Grupo de investigación Histopatología, Facultad de Medicina, Universidad de Cartagena, Carrera 50 # 24-120, código postal 130014 Cartagena, Colombia.
| | - Julián Hoyos
- Grupo de investigación Histopatología, Facultad de Medicina, Universidad de Cartagena, Carrera 50 # 24-120, código postal 130014 Cartagena, Colombia
| | - Lía Barrios
- Grupo de investigación Histopatología, Facultad de Medicina, Universidad de Cartagena, Carrera 50 # 24-120, código postal 130014 Cartagena, Colombia
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Vázquez Rigueira P, Pedrero Chamizo R, Aparicio Ugarriza R, Santiago Dorrego C, Calonge S, Gómez F, Palacios Le Ble G, Díaz Manjón R, Meléndez A, Barrios L, Botella A, González Gross M, Pérez Ruiz M. Efectos de un programa de ejercicio intradiálisis en pacientes con enfermedad renal crónica. RICCAFD 2019. [DOI: 10.24310/riccafd.2019.v8i3.7490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
El objetivo de este estudio fue comprobar el grado de cumplimiento y analizar el efecto de un programa intradiálisis de ejercicio físico sobre la condición física y salud del paciente con enfermedad renal crónica (ERC) que recibe hemodiálisis. Estudio de intervención con dos periodos de 14 semanas, uno sin intervención de ejercicio y otro con intervención, combinando trabajo de resistencia aeróbica y fuerza, en sesiones de 60 minutos, 3 días/semana. La condición física se evaluó a través de la capacidad de fuerza máxima de prensión manual, fuerza resistencia en extremidades inferiores y capacidad cardiorrespiratoria. El 62% de los pacientes cumplieron el 75% del programa. Durante el periodo sin ejercicio intradiálisis se observó una disminución significativa de la condición física, que se frenó durante el periodo con intervención de ejercicio. El programa de ejercicio intradiálisis es importante para frenar la pérdida de condición física ocasionada por la ERC.
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Machado V, Sharkey M, Cordeiro T, Barrios L, Henrich T, Stevenson M. Post-ATI viremia in a hyperacute subject comprises macrophage-tropic viral variants. J Virus Erad 2019. [DOI: 10.1016/s2055-6640(20)30145-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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10
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Prieto R, Pascual J, Barrios L. Spinal dural arteriovenous fistulas: early endovascular treatment or surgery? Neurología (English Edition) 2019. [DOI: 10.1016/j.nrleng.2017.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Solivera J, Fuentes Fayos A, Luque RM, Barrios L, Roda JM, Cerdán S, Gandía-González ML. P13.08 1H-MRS metabolomics as a predictor of overall survival in glioma patients. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
We assess the efficacy of the metabolomic profile from glioma biopsies, in providing estimates of postsurgical Overall Survival in glioma patients.
MATERIAL AND METHODS
Tumor biopsies from 46 patients bearing gliomas, obtained neurosurgically in the period 1992–1998, were analyzed by high resolution 1H magnetic resonance spectroscopy (HR- 1H MRS), following retrospectively individual postsurgical Overall Survival up to 720 weeks.
RESULTS
The Overall Survival profile could be resolved in three groups; Short (shorter than 52 weeks, n=19), Intermediate (between 53 and 364 weeks, n=19) or Long (longer than 365 weeks, n=8), respectively. Classical histopathological analysis assigned WHO grades II-IV to every biopsy but notably, some patients with low grade glioma depicted unexpectedly Short Overall Survival, while some patients with high grade glioma, presented unpredictably Long Overall Survival. To explore reasons underlying this behavior, we analyzed HR- 1H MRS spectra from acid extracts of these biopsies, to identify the metabolite patterns underlying OS predictions. Poor prognosis was found in biopsies with higher contents of alanine, acetate, glutamate, total choline, phosphorylcholine and glycine, while more favorable prognosis was achieved in biopsies with larger contents of total creatine, glycerol-phosphorylcholine and myo-inositol. We implemented then a multivariate analysis approach to identify hierarchically the influence of these metabolomic biomarkers on OS predictions, using Classification Regression Trees (CRTs). Metabolomic CRTs grew up to 3 branches and split into 8 nodes, predicting correctly the outcome of 94.7% of the patients in the Short Overall Survival group, 78.9 % of the patients in the Intermediate Overall Survival group, and 75% of the patients in the Long Overall Survival group, respectively.
CONCLUSION
Present results suggest that metabolic profiling by HR-1H MRS provides more accurate Overall Survival estimates of glioma patients than classical histopathological grading, thus allowing to implement more accurate therapeutic decisions.
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Affiliation(s)
- J Solivera
- Instituto “Maimónides” de Investigación Biomédica de Córdoba, Hospital Universitario Reina Sofía, Córdoba, Spain
| | - A Fuentes Fayos
- Instituto “Maimónides” de Investigación Biomédica de Córdoba, Hospital Universitario Reina Sofía, Córdoba, Spain
| | - R M Luque
- Instituto “Maimónides” de Investigación Biomédica de Córdoba, Hospital Universitario Reina Sofía, Córdoba, Spain
| | - L Barrios
- Department of Statistics CSIC, Madrid, Spain
| | - J M Roda
- Department of Neurosurgery, Hospital Universitario La Paz, Madrid, Spain
| | - S Cerdán
- Institute of Biomedical Research “Alberto Sols” CSIC/UAM, Madrid, Spain
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Rivera DE, Ocampo YC, Castro JP, Barrios L, Diaz F, Franco LA. A screening of plants used in Colombian traditional medicine revealed the anti-inflammatory potential of Physalis angulata calyces. Saudi J Biol Sci 2018; 26:1758-1766. [PMID: 31762655 PMCID: PMC6864190 DOI: 10.1016/j.sjbs.2018.05.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/25/2018] [Accepted: 05/31/2018] [Indexed: 12/20/2022] Open
Abstract
The use of natural products by communities from the Colombian Caribbean region to treat health issues, together with biodiversity and geographical features, constitute a great scenery to develop new therapies based on ethnopharmacological heritage. Here, we investigated the anti-inflammatory potential of 10 commonly used plants in Colombian folk medicine, evaluating their effect on nitric oxide (NO) production by LPS-stimulated RAW 264.7 macrophages. The most active plant was evaluated in vivo using 12-O-tetradecanoyl-phorbol-13-acetate (TPA)-induced mouse ear edema, along with its effect on the production of pro-inflammatory mediators in vitro. The extract of Physalis angulata L. calyces showed the highest activity. This extract was fractionated and its dichloromethane fraction (DF) was the most active in vitro, inhibiting the production of NO, prostaglandin E2 (PGE2), interleukin (IL)-1β, IL-6, tumor necrosis factor (TNF)-α and monocyte chemotactic protein (MCP)-1 (CCL2). In vivo, DF showed a significant inhibition of ear edema and myeloperoxidase (MPO) activity, with evident reduction of the leukocyte infiltration into tissue. Our results support the ethnopharmacological use of the selected plants in folk medicine. P. angulata dichloromethane fraction represents a promising source of pharmacological compounds with great potential therapeutic use to treat inflammatory illness.
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Affiliation(s)
- David E Rivera
- Biological Evaluation of Promising Substances Group, Faculty of Pharmaceutical Sciences, University of Cartagena, 130015 Cartagena, Colombia
| | - Yanet C Ocampo
- Biological Evaluation of Promising Substances Group, Faculty of Pharmaceutical Sciences, University of Cartagena, 130015 Cartagena, Colombia
| | - Jenny P Castro
- Biological Evaluation of Promising Substances Group, Faculty of Pharmaceutical Sciences, University of Cartagena, 130015 Cartagena, Colombia
| | - Lía Barrios
- Histopathology Research Group, Faculty of Medicine, University of Cartagena, 130015 Cartagena, Colombia
| | - Fredyc Diaz
- Laboratory for Phytochemical and Pharmacological Research from the University of Cartagena-LIFFUC, University of Cartagena, 130015 Cartagena, Colombia
| | - Luis A Franco
- Biological Evaluation of Promising Substances Group, Faculty of Pharmaceutical Sciences, University of Cartagena, 130015 Cartagena, Colombia
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Machado V, Alvarado T, Barrios L, Morales A, Sharkey M, Mavian C, Salemi M, Stevenson M. Identification of macrophage reservoirs through tropism of HIV-1 envelope. J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30574-4] [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: 11/28/2022] Open
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14
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Prieto R, Pascual JM, Barrios L. Spinal dural arteriovenous fistulas: Early endovascular treatment or surgery? Neurologia 2017; 34:557-560. [PMID: 29050785 DOI: 10.1016/j.nrl.2017.07.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 07/12/2017] [Indexed: 10/18/2022] Open
Affiliation(s)
- R Prieto
- Servicio de Neurocirugía, Hospital Puerta de Hierro, Majadahonda, Madrid, España.
| | - J M Pascual
- Servicio de Neurocirugía, Hospital La Princesa, Madrid, España
| | - L Barrios
- Departamento de Estadística, Investigación Operativa y Estadística Aplicada, Consejo Superior de Investigaciones Científicas, Madrid, España
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15
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Prieto R, Pascual JM, Barrios L. Topographic Diagnosis of Craniopharyngiomas: The Accuracy of MRI Findings Observed on Conventional T1 and T2 Images. AJNR Am J Neuroradiol 2017; 38:2073-2080. [PMID: 28935625 DOI: 10.3174/ajnr.a5361] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 06/30/2017] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The topography of craniopharyngiomas has proved fundamental in predicting the involvement of vital brain structures and the possibility of achieving a safe radical resection. Beyond the imprecise term "suprasellar," indiscriminately used for craniopharyngiomas, an accurate definition of craniopharyngioma topography should be assessed by preoperative MR imaging. The objective of this study was to investigate the MRI findings that help define craniopharyngioma topography. MATERIALS AND METHODS This study retrospectively investigated a cohort of 200 surgically treated craniopharyngiomas with their corresponding preoperative midsagittal and coronal conventional T1- and T2-weighted MR images, along with detailed descriptions of the surgical findings. Radiologic variables related to the occupation of the tumor of intracranial compartments and the distortions of anatomic structures along the sella turcica-third ventricle axis were analyzed and correlated with the definitive craniopharyngioma topography observed during the surgical procedures. A predictive model for craniopharyngioma topography was generated by multivariate analysis. RESULTS Five major craniopharyngioma topographies can be defined according to the degree of hypothalamic distortion caused by the tumor: sellar-suprasellar, pseudointraventricular, secondary intraventricular, not strictly intraventricular, and strictly intraventricular. Seven key radiologic variables identified on preoperative MRI allowed a correct overall prediction of craniopharyngioma topography in 86% of cases: 1) third ventricle occupation, 2) pituitary stalk distortion, 3) relative level of the hypothalamus in relation to the tumor, 4) chiasmatic cistern occupation, 5) mammillary body angle, 6) type of chiasm distortion, and 7) tumor shape. CONCLUSIONS Systematic assessment of these 7 variables on conventional preoperative T1 and T2 MRI is a useful and reliable method to ascertain individual craniopharyngioma topography.
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Affiliation(s)
- R Prieto
- From the Department of Neurosurgery (R.P.), Puerta de Hierro University Hospital, Madrid, Spain
| | - J M Pascual
- Department of Neurosurgery (J.M.P.), La Princesa University Hospital, Madrid Spain
| | - L Barrios
- Statistics Department (L.B.), Computing Center, Consejo Superior de Investigaciones Científicas, Madrid, Spain
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16
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Coronado S, Barrios L, Zakzuk J, Regino R, Ahumada V, Franco L, Ocampo Y, Caraballo L. A recombinant cystatin from Ascaris lumbricoides attenuates inflammation of DSS-induced colitis. Parasite Immunol 2017; 39. [PMID: 28295446 DOI: 10.1111/pim.12425] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 03/05/2017] [Indexed: 12/20/2022]
Abstract
Helminthiasis may ameliorate inflammatory diseases, such as inflammatory bowel disease and asthma. Information about immunomodulators from Ascaris lumbricoides is scarce, but could be important considering the co-evolutionary relationships between helminths and humans. We evaluated the immunomodulatory effects of a recombinant cystatin from A. lumbricoides on an acute model of dextran sodium sulphate (DSS)-induced colitis in mice. From an A. lumbricoides cDNA library, we obtained a recombinant cystatin (rAl-CPI). Protease activity inhibition was demonstrated on cathepsin B and papain. Immunomodulatory effects were evaluated at two intraperitoneal doses (0.5 and 0.25 μg/G) on mice with DSS-induced colitis. Body weight, colon length, Disease Activity Index (DAI), histological inflammation score, myeloperoxidase (MPO) activity, gene expression of cytokines and cytokines levels in colon tissue were analysed. Treatment with rAl-CPI significantly reduced DAI, MPO activity and inflammation score without toxic effects. Also, IL-10 and TGF-B gene overexpression was observed in rAl-CPI-treated group compared to DSS-exposed control and healthy mice. Furthermore, a reduction in IL-6 and TNF-A expression was found, and this was confirmed by the levels of these cytokines in colonic tissue. In conclusion, rAl-CPI reduces inflammation in a mouse model of DSS-induced colitis, probably by increasing the expression of anti-inflammatory cytokines and reducing pro-inflammatory ones.
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Affiliation(s)
- S Coronado
- Institute for Immunological Research, Universidad de Cartagena, Cartagena, Colombia
| | - L Barrios
- Faculty of Pharmaceutical Sciences, Universidad de Cartagena, Cartagena, Colombia
| | - J Zakzuk
- Institute for Immunological Research, Universidad de Cartagena, Cartagena, Colombia
| | - R Regino
- Institute for Immunological Research, Universidad de Cartagena, Cartagena, Colombia
| | - V Ahumada
- Institute for Immunological Research, Universidad de Cartagena, Cartagena, Colombia
| | - L Franco
- Faculty of Pharmaceutical Sciences, Universidad de Cartagena, Cartagena, Colombia
| | - Y Ocampo
- Faculty of Pharmaceutical Sciences, Universidad de Cartagena, Cartagena, Colombia
| | - L Caraballo
- Institute for Immunological Research, Universidad de Cartagena, Cartagena, Colombia
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Castro-Dufourny I, Carrasco R, Prieto R, Barrios L, Pascual JM. The first sixty-five craniopharyngioma operations in France. Rev Neurol (Paris) 2017; 173:180-188. [DOI: 10.1016/j.neurol.2016.12.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 09/13/2016] [Accepted: 12/20/2016] [Indexed: 11/30/2022]
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Espí IM, Soriano J, Barrios L, Ibáñez E, Nogués C. Photochemical internalization to release microparticles entrapped in lysosomes. Photodiagnosis Photodyn Ther 2017. [DOI: 10.1016/j.pdpdt.2017.01.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Soriano J, Mora-Espí I, Alea M, Pérez-Gàrcia L, Barrios L, Ibáñez E, Nogués C. Cell death mechanisms in tumoral and non-tumoral human breast epithelial cell lines triggered by Na-H 2 TCPP or Na-ZnTCPP photodynamic treatments: Apoptosis, necrosis and parthanatos. Photodiagnosis Photodyn Ther 2017. [DOI: 10.1016/j.pdpdt.2017.01.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Cabrera M, Ortiz-Menéndez JC, Garzón B, Barrios L. Need for Emergency Epinephrine to Treat Food Allergy Reactions in Schools in the Hortaleza District in Madrid. J Investig Allergol Clin Immunol 2017; 27:58-60. [DOI: 10.18176/jiaci.0114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Soriano J, Mora-Espí I, Alea-Reyes ME, Pérez-García L, Barrios L, Ibáñez E, Nogués C. Cell Death Mechanisms in Tumoral and Non-Tumoral Human Cell Lines Triggered by Photodynamic Treatments: Apoptosis, Necrosis and Parthanatos. Sci Rep 2017; 7:41340. [PMID: 28112275 PMCID: PMC5256096 DOI: 10.1038/srep41340] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 12/16/2016] [Indexed: 12/28/2022] Open
Abstract
Cell death triggered by photodynamic therapy can occur through different mechanisms: apoptosis, necrosis or autophagy. However, recent studies have demonstrated the existence of other mechanisms with characteristics of both necrosis and apoptosis. These new cell death pathways, collectively termed regulated necrosis, include a variety of processes triggered by different stimuli. In this study, we evaluated the cell death mechanism induced by photodynamic treatments with two photosensitizers, meso-tetrakis (4-carboxyphenyl) porphyrin sodium salt (Na-H2TCPP) and its zinc derivative Na-ZnTCPP, in two human breast epithelial cell lines, a non-tumoral (MCF-10A) and a tumoral one (SKBR-3). Viability assays showed that photodynamic treatments with both photosensitizers induced a reduction in cell viability in a concentration-dependent manner and no dark toxicity was observed. The cell death mechanisms triggered were evaluated by several assays and cell line-dependent results were found. Most SKBR-3 cells died by either necrosis or apoptosis. By contrast, in MCF-10A cells, necrotic cells and another cell population with characteristics of both necrosis and apoptosis were predominant. In this latter population, cell death was PARP-dependent and translocation of AIF to the nucleus was observed in some cells. These characteristics are related with parthanatos, being the first evidence of this type of regulated necrosis in the field of photodynamic therapy.
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Affiliation(s)
- J Soriano
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Spain
| | - I Mora-Espí
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Spain
| | - M E Alea-Reyes
- Departament de Farmacologia, toxicologia i Química Terapèutica and Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, Spain
| | - L Pérez-García
- Departament de Farmacologia, toxicologia i Química Terapèutica and Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, Spain
| | - L Barrios
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Spain
| | - E Ibáñez
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Spain
| | - C Nogués
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Spain
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22
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Barrios L, Grison-Hernando H, Boels D, Bouquie R, Monteil-Ganiere C, Clement R. Death following ingestion of methylone. Int J Legal Med 2015; 130:381-5. [DOI: 10.1007/s00414-015-1212-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 06/01/2015] [Indexed: 10/23/2022]
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23
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Kulka U, Ainsbury L, Atkinson M, Barnard S, Smith R, Barquinero JF, Barrios L, Bassinet C, Beinke C, Cucu A, Darroudi F, Fattibene P, Bortolin E, Monaca SD, Gil O, Gregoire E, Hadjidekova V, Haghdoost S, Hatzi V, Hempel W, Herranz R, Jaworska A, Lindholm C, Lumniczky K, M'kacher R, Mörtl S, Montoro A, Moquet J, Moreno M, Noditi M, Ogbazghi A, Oestreicher U, Palitti F, Pantelias G, Popescu I, Prieto MJ, Roch-Lefevre S, Roessler U, Romm H, Rothkamm K, Sabatier L, Sebastià N, Sommer S, Terzoudi G, Testa A, Thierens H, Trompier F, Turai I, Vandevoorde C, Vaz P, Voisin P, Vral A, Ugletveit F, Wieser A, Woda C, Wojcik A. Realising the European network of biodosimetry: RENEB-status quo. Radiat Prot Dosimetry 2015; 164:42-5. [PMID: 25205835 PMCID: PMC4401036 DOI: 10.1093/rpd/ncu266] [Citation(s) in RCA: 28] [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] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Creating a sustainable network in biological and retrospective dosimetry that involves a large number of experienced laboratories throughout the European Union (EU) will significantly improve the accident and emergency response capabilities in case of a large-scale radiological emergency. A well-organised cooperative action involving EU laboratories will offer the best chance for fast and trustworthy dose assessments that are urgently needed in an emergency situation. To this end, the EC supports the establishment of a European network in biological dosimetry (RENEB). The RENEB project started in January 2012 involving cooperation of 23 organisations from 16 European countries. The purpose of RENEB is to increase the biodosimetry capacities in case of large-scale radiological emergency scenarios. The progress of the project since its inception is presented, comprising the consolidation process of the network with its operational platform, intercomparison exercises, training activities, proceedings in quality assurance and horizon scanning for new methods and partners. Additionally, the benefit of the network for the radiation research community as a whole is addressed.
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Affiliation(s)
- U Kulka
- Bundesamt für Strahlenschutz, Salzgitter, Germany
| | | | - M Atkinson
- Helmholtz Centre Munich, Neuherberg, Germany
| | | | - R Smith
- Public Health England, Chilton, UK
| | - J F Barquinero
- Universitat Autonoma de Barcelona, Cerdanyola del Valles, Spain
| | - L Barrios
- Universitat Autonoma de Barcelona, Cerdanyola del Valles, Spain
| | - C Bassinet
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France
| | - C Beinke
- Bundeswehr Institut für Radiobiologie/Universität Ulm, Ulm, Germany
| | - A Cucu
- National Institute of Public Health Romania, Bucharest, Romania
| | - F Darroudi
- Leiden University Medical Center, Leiden, The Netherlands
| | | | - E Bortolin
- Istituto Superiore di Sanità, Rome, Italy
| | | | - O Gil
- Instituto Superior Técnico, Universidade de Lisboa, Bobadela LRS, Portugal
| | - E Gregoire
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France
| | - V Hadjidekova
- National Centre of Radiobiology and Radiation Protection, Sofia, Bulgaria
| | | | - V Hatzi
- National Centre for Scientific Research Demokritos, Athens, Greece
| | - W Hempel
- Commissariat à l'Énergie Atomique, Fontenay-aux-Roses, France
| | - R Herranz
- Servicio Madrileño de Salud, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - A Jaworska
- Norwegian Radiation Protection Authority, Osteraas, Norway
| | - C Lindholm
- Radiation and Nuclear Safety Authority, Research and Environmental Surveillance, Helsinki, Finland
| | - K Lumniczky
- National Research Institute for Radiobiology and Radiohygiene, Budapest, Hungary
| | - R M'kacher
- Commissariat à l'Énergie Atomique, Fontenay-aux-Roses, France
| | - S Mörtl
- Helmholtz Centre Munich, Neuherberg, Germany
| | - A Montoro
- Fundación para la Investigation del Hospital Universitario la Fe de la Comunidad Valenciana, Valencia, Spain
| | - J Moquet
- Public Health England, Chilton, UK
| | - M Moreno
- Servicio Madrileño de Salud, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - M Noditi
- National Institute of Public Health Romania, Bucharest, Romania
| | - A Ogbazghi
- Commissariat à l'Énergie Atomique, Fontenay-aux-Roses, France
| | | | - F Palitti
- University of Tuscia, Viterbo, Italy
| | - G Pantelias
- National Centre for Scientific Research Demokritos, Athens, Greece
| | - I Popescu
- National Institute of Public Health Romania, Bucharest, Romania
| | - M J Prieto
- Servicio Madrileño de Salud, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - S Roch-Lefevre
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France
| | - U Roessler
- Bundesamt für Strahlenschutz, Salzgitter, Germany
| | - H Romm
- Bundesamt für Strahlenschutz, Salzgitter, Germany
| | | | - L Sabatier
- Commissariat à l'Énergie Atomique, Fontenay-aux-Roses, France
| | - N Sebastià
- Fundación para la Investigation del Hospital Universitario la Fe de la Comunidad Valenciana, Valencia, Spain
| | - S Sommer
- Instytut Chemii i Techniki Jadrowej, Warsaw, Poland
| | - G Terzoudi
- National Centre for Scientific Research Demokritos, Athens, Greece
| | - A Testa
- Agenzia Nazionale per le Nuove Tecnologie, L'Energia e lo Sviluppo Economico Sostenibile, Rome, Italy
| | - H Thierens
- Faculty of Medicine and Health Sciences, Universiteit Gent, Gent, Belgium
| | - F Trompier
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France
| | - I Turai
- National Research Institute for Radiobiology and Radiohygiene, Budapest, Hungary
| | - C Vandevoorde
- Faculty of Medicine and Health Sciences, Universiteit Gent, Gent, Belgium
| | - P Vaz
- Instituto Superior Técnico, Universidade de Lisboa, Bobadela LRS, Portugal
| | - P Voisin
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France
| | - A Vral
- Faculty of Medicine and Health Sciences, Universiteit Gent, Gent, Belgium
| | - F Ugletveit
- Norwegian Radiation Protection Authority, Osteraas, Norway
| | - A Wieser
- Helmholtz Centre Munich, Neuherberg, Germany
| | - C Woda
- Helmholtz Centre Munich, Neuherberg, Germany
| | - A Wojcik
- Stockholm University, Stockholm, Sweden
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Hynowska A, Blanquer A, Pellicer E, Fornell J, Suriñach S, Baró MD, Gebert A, Calin M, Eckert J, Nogués C, Ibáñez E, Barrios L, Sort J. Nanostructured Ti-Zr-Pd-Si-(Nb) bulk metallic composites: Novel biocompatible materials with superior mechanical strength and elastic recovery. J Biomed Mater Res B Appl Biomater 2014; 103:1569-79. [PMID: 25533018 DOI: 10.1002/jbm.b.33346] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 10/27/2014] [Accepted: 12/02/2014] [Indexed: 11/10/2022]
Abstract
The microstructure, mechanical behaviour, and biocompatibility (cell culture, morphology, and cell adhesion) of nanostructured Ti45 Zr15 Pd35- x Si5 Nbx with x = 0, 5 (at. %) alloys, synthesized by arc melting and subsequent Cu mould suction casting, in the form of rods with 3 mm in diameter, are investigated. Both Ti-Zr-Pd-Si-(Nb) materials show a multi-phase (composite-like) microstructure. The main phase is cubic β-Ti phase (Im3m) but hexagonal α-Ti (P63/mmc), cubic TiPd (Pm3m), cubic PdZr (Fm3m), and hexagonal (Ti, Zr)5 Si3 (P63/mmc) phases are also present. Nanoindentation experiments show that the Ti45 Zr15 Pd30 Si5 Nb5 sample exhibits lower Young's modulus than Ti45 Zr15 Pd35 Si5 . Conversely, Ti45 Zr15 Pd35 Si5 is mechanically harder. Actually, both alloys exhibit larger values of hardness when compared with commercial Ti-40Nb, (HTi-Zr-Pd-Si ≈ 14 GPa, HTi-Zr-Pd-Si-Nb ≈ 10 GPa and HTi-40Nb ≈ 2.7 GPa). Concerning the biological behaviour, preliminary results of cell viability performed on several Ti-Zr-Pd-Si-(Nb) discs indicate that the number of live cells is superior to 94% in both cases. The studied Ti-Zr-Pd-Si-(Nb) bulk metallic system is thus interesting for biomedical applications because of the outstanding mechanical properties (relatively low Young's modulus combined with large hardness), together with the excellent biocompatibility.
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Affiliation(s)
- A Hynowska
- Departament de Física, Universitat Autònoma de Barcelona, Bellaterra, E-08193, Spain
| | - A Blanquer
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Bellaterra, E-08193, Spain
| | - E Pellicer
- Departament de Física, Universitat Autònoma de Barcelona, Bellaterra, E-08193, Spain
| | - J Fornell
- Departament de Física, Universitat Autònoma de Barcelona, Bellaterra, E-08193, Spain
| | - S Suriñach
- Departament de Física, Universitat Autònoma de Barcelona, Bellaterra, E-08193, Spain
| | - M D Baró
- Departament de Física, Universitat Autònoma de Barcelona, Bellaterra, E-08193, Spain
| | - A Gebert
- IFW Dresden, Institute for Complex Materials, P.O. Box 270116, Dresden, D-01171, Germany
| | - M Calin
- IFW Dresden, Institute for Complex Materials, P.O. Box 270116, Dresden, D-01171, Germany
| | - J Eckert
- IFW Dresden, Institute for Complex Materials, P.O. Box 270116, Dresden, D-01171, Germany.,TU Dresden, Institute of Materials Science, Dresden, D-01062, Germany
| | - C Nogués
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Bellaterra, E-08193, Spain
| | - E Ibáñez
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Bellaterra, E-08193, Spain
| | - L Barrios
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Bellaterra, E-08193, Spain
| | - J Sort
- Institució Catalana de Recerca i Estudis Avançats (ICREA) and Departament de Física, Universitat Autònoma de Barcelona, Bellaterra, E-08193, Spain
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25
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Clement R, Guilbaud E, Barrios L, Rougé-Maillart C, Jousset N, Rodat O. DES daughters in France: experts' points of view on the various genital, uterine and obstetric pathologies, and in utero DES exposure. Med Sci Law 2014; 54:219-229. [PMID: 24534146 DOI: 10.1177/0025802414523266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND Compensation of diethylstilbestrol exposure depends on the judicial system. In France, girls having been exposed to diethylstilbestrol are currently being compensated, and each exposure victim is being evaluated. Fifty-nine expert evaluations were studied to determine the causal relation between exposure to diethylstilbestrol and the pathologies attributable to diethylstilbestrol. METHODS The following were taken into consideration: age at the first signs of the pathology; age of the sufferer at the time of evaluation; the pathologies grouped into five categories: fertility disorders - cancers - mishaps during pregnancy - psychosomatic complaints - pathologies of "3rd generation DES victims"; submission of proof of DES exposure; the degree of causality determined (direct, indirect, ruled out). RESULTS 61% of the cases related to fertility disorders, 28.8% to cancer pathologies (clear-cell adenocarcinoma), 18.6% to mishaps during pregnancy, 8.5% to disorders resulting from preterm delivery, and 3.4% to psychosomatic disorders. Some cases involved a combination of two types of complaints. Indirect causality was determined in 47.1% of the cases involving primary sterility, in 66.7% involving secondary sterility, and in 5 out of 6 cases of total sterility. There is direct causality between in utero diethylstilbestrol exposure and vaginal or cervical clear cell adenocarcinoma. Causality is indirect in the case of disorders linked to prematurity in third generation victims. CONCLUSION Causality was determined by the experts on the basis of scientific criteria which attribute the presenting pathologies to diethylstilbestrol exposure. When other risk factors come into play, or when exposure is indirect (third generation), this causality is diminished.
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Affiliation(s)
- R Clement
- Laboratoire de Médecine Légale, Université de Nantes, France
| | - E Guilbaud
- Laboratoire de Médecine Légale, Université de Nantes, France Unit of Forensic Medicine, CHU Angers, France
| | - L Barrios
- Laboratoire de Médecine Légale, Université de Nantes, France
| | | | - N Jousset
- Unit of Forensic Medicine, CHU Angers, France
| | - O Rodat
- Laboratoire de Médecine Légale, Université de Nantes, France
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Romm H, Ainsbury E, Barnard S, Barrios L, Barquinero JF, Beinke C, Deperas M, Gregoire E, Koivistoinen A, Lindholm C, Moquet J, Oestreicher U, Puig R, Rothkamm K, Sommer S, Thierens H, Vandersickel V, Vral A, Wojcik A. Validation of semi-automatic scoring of dicentric chromosomes after simulation of three different irradiation scenarios. Health Phys 2014; 106:764-771. [PMID: 24776911 DOI: 10.1097/hp.0000000000000077] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Large scale radiological emergencies require high throughput techniques of biological dosimetry for population triage in order to identify individuals indicated for medical treatment. The dicentric assay is the "gold standard" technique for the performance of biological dosimetry, but it is very time consuming and needs well trained scorers. To increase the throughput of blood samples, semi-automation of dicentric scoring was investigated in the framework of the MULTIBIODOSE EU FP7 project, and dose effect curves were established in six biodosimetry laboratories. To validate these dose effect curves, blood samples from 33 healthy donors (>10 donors/scenario) were irradiated in vitro with ⁶⁰Co gamma rays simulating three different exposure scenarios: acute whole body, partial body, and protracted exposure, with three different doses for each scenario. All the blood samples were irradiated at Ghent University, Belgium, and then shipped blind coded to the participating laboratories. The blood samples were set up by each lab using their own standard protocols, and metaphase slides were prepared to validate the calibration curves established by semi-automatic dicentric scoring. In order to achieve this, 300 metaphases per sample were captured, and the doses were estimated using the newly formed dose effect curves. After acute uniform exposure, all laboratories were able to distinguish between 0 Gy, 0.5 Gy, 2.0, and 4.0 Gy (p < 0.001), and, in most cases, the dose estimates were within a range of ± 0.5 Gy of the given dose. After protracted exposure, all laboratories were able to distinguish between 1.0 Gy, 2.0 Gy, and 4.0 Gy (p < 0.001), and here also a large number of the dose estimates were within ± 0.5 Gy of the irradiation dose. After simulated partial body exposure, all laboratories were able to distinguish between 2.0 Gy, 4.0 Gy, and 6.0 Gy (p < 0.001). Overdispersion of the dicentric distribution enabled the detection of the partial body samples; however, this result was clearly dose-dependent. For partial body exposures, only a few dose estimates were in the range of ± 0.5 Gy of the given dose, but an improvement could be achieved with higher cell numbers. The new method of semi-automation of the dicentric assay was introduced successfully in a network of six laboratories. It is therefore concluded that this method can be used as a high-throughput screening tool in a large-scale radiation accident.
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Affiliation(s)
- H Romm
- *Bundesamt fuer Strahlenschutz (Germany); †Public Health England (United Kingdom); ‡Universitat Autonoma de Barcelona (Spain); §Institut de Radioprotection et de Sûreté Nucleaire (France); **Bundeswehr Institute of Radiobiology affiliated to the University of Ulm (Germany); ††Stockholm University (Sweden); ‡‡Radiation and Nuclear Safety Authority (Finland); §§Institute of Nuclear Chemistry and Technology (Poland); ***University of Ghent (Belgium)
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27
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Romm H, Ainsbury E, Bajinskis A, Barnard S, Barquinero JF, Barrios L, Beinke C, Puig-Casanovas R, Deperas-Kaminska M, Gregoire E, Oestreicher U, Lindholm C, Moquet J, Rothkamm K, Sommer S, Thierens H, Vral A, Vandersickel V, Wojcik A. Web-based scoring of the dicentric assay, a collaborative biodosimetric scoring strategy for population triage in large scale radiation accidents. Radiat Environ Biophys 2014; 53:241-254. [PMID: 24557539 DOI: 10.1007/s00411-014-0519-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Accepted: 01/28/2014] [Indexed: 06/03/2023]
Abstract
In the case of a large scale radiation accident high throughput methods of biological dosimetry for population triage are needed to identify individuals requiring clinical treatment. The dicentric assay performed in web-based scoring mode may be a very suitable technique. Within the MULTIBIODOSE EU FP7 project a network is being established of 8 laboratories with expertise in dose estimations based on the dicentric assay. Here, the manual dicentric assay was tested in a web-based scoring mode. More than 23,000 high resolution images of metaphase spreads (only first mitosis) were captured by four laboratories and established as image galleries on the internet (cloud). The galleries included images of a complete dose effect curve (0-5.0 Gy) and three types of irradiation scenarios simulating acute whole body, partial body and protracted exposure. The blood samples had been irradiated in vitro with gamma rays at the University of Ghent, Belgium. Two laboratories provided image galleries from Fluorescence plus Giemsa stained slides (3 h colcemid) and the image galleries from the other two laboratories contained images from Giemsa stained preparations (24 h colcemid). Each of the 8 participating laboratories analysed 3 dose points of the dose effect curve (scoring 100 cells for each point) and 3 unknown dose points (50 cells) for each of the 3 simulated irradiation scenarios. At first all analyses were performed in a QuickScan Mode without scoring individual chromosomes, followed by conventional scoring (only complete cells, 46 centromeres). The calibration curves obtained using these two scoring methods were very similar, with no significant difference in the linear-quadratic curve coefficients. Analysis of variance showed a significant effect of dose on the yield of dicentrics, but no significant effect of the laboratories, different methods of slide preparation or different incubation times used for colcemid. The results obtained to date within the MULTIBIODOSE project by a network of 8 collaborating laboratories throughout Europe are very promising. The dicentric assay in the web based scoring mode as a high throughput scoring strategy is a useful application for biodosimetry in the case of a large scale radiation accident.
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Affiliation(s)
- H Romm
- Bundesamt fuer Strahlenschutz, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany,
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Blanquer A, Pellicer E, Hynowska A, Barrios L, Ibáñez E, Baró MD, Sort J, Nogués C. In vitro biocompatibility assessment of Ti40Cu38Zr10Pd12 bulk metallic glass. J Mater Sci Mater Med 2014; 25:163-172. [PMID: 24022801 DOI: 10.1007/s10856-013-5041-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 08/28/2013] [Indexed: 06/02/2023]
Abstract
The use of biocompatible materials has attained an increasing importance for tissue regeneration and transplantation. The excellent mechanical and corrosion properties of Ti40Cu38Zr10Pd12 bulk metallic glass (BMG) turn it into a potential candidate for its use in orthopaedic implants. Before being considered as a biomaterial, some biological parameters must be taken into account. In this study,mouse preosteoblasts were cultured in the presence or absence of the alloy at different times (24 h, 7 and 21 days) and no differences in cell viability were detected.Moreover, cells were able to adhere to the alloy surface by establishing focal contacts, and displayed a flattened polygonal morphology. After 14 days in culture, differentiation into osteoblasts was observed. Besides, the amount of Cu ions released and their potential toxic effects were analyzed, showing that the amount of Cu released did not increase cell death. Finally, the low levels of inflammatory cytokines secreted by THP-1 differentiated macrophages exposed to the alloy suggest the absence of an immunogenic response to the alloy. In conclusion, in vitro studies indicate that the Ti40Cu38Zr10Pd12 BMG could be considered as a biomaterial to be used in orthopaedic implants.
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Romm H, Ainsbury E, Barnard S, Barrios L, Barquinero J, Beinke C, Deperas M, Gregoire E, Koivistoinen A, Lindholm C, Moquet J, Oestreicher U, Puig R, Rothkamm K, Sommer S, Thierens H, Vandersickel V, Vral A, Wojcik A. Automatic scoring of dicentric chromosomes as a tool in large scale radiation accidents. Mutation Research/Genetic Toxicology and Environmental Mutagenesis 2013; 756:174-83. [DOI: 10.1016/j.mrgentox.2013.05.013] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 05/07/2013] [Indexed: 11/27/2022]
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Montgomery S, Duffy S, Bowman N, Sedler M, Campbell A, Fishel S, Scaruffi P, Stigliani S, Venturini PL, Anserini P, Ferreira RC, Figueira RCS, Braga DPAF, Setti AS, Iaconelli A, Borges E, Novo S, Penon O, Nogues C, Barrios L, Santalo J, Duch M, Gomez-Martinez R, Perez-Garcia L, Plaza JA, Ibanez E, Menezes J, Lalitkumar PGL, Borg P, Vaegter K, Wramsby M, Wramsby H, Ma W, Liang X, Huang X, Yang X, Wei L. Session 02: From oocyte to blastocyst. Hum Reprod 2013. [DOI: 10.1093/humrep/det147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Novo S, Morató R, Penon O, Duran S, Barrios L, Nogués C, Gómez-Martínez R, Pérez-García L, Plaza JA, Ibáñez E, Mogas T. 142 ZONA PELLUCIDA TAGGING WITH BARCODES ALLOWS THE TRACEABILITY OF BOVINE EMBRYOS CULTURED IN GROUP. Reprod Fertil Dev 2013. [DOI: 10.1071/rdv25n1ab142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The low number of oocytes collected from unstimulated donors by ovum pick-up means that embryos produced from each female have to be cultured in very small groups. Because embryo quality and development rates are reduced in individual and small group culture, several methods to culture embryos individually but sharing the same medium have been designed. However, these systems prevent embryo movements, interfering with paracrine factors transmission and gradient changes. Here, we present an alternative in vitro culture method to allow the co-culture of embryos from different origins, without movement restriction and preserving their pedigree, by labelling the zygotes with polysilicon barcodes attached to the outer surface of the zona pellucida (ZP). Barcodes (10 × 6 × 1 µm) with 8 rectangular bits of binary codification (256 possible combinations), which can be read under a standard inverted microscope, were fabricated using silicon microtechnologies. To provide the barcodes with a ZP-binding capacity, they were biofunctionalized by self-assembled monolayers with the wheat germ agglutinin (WGA) lectin, which recognizes specific saccharides highly abundant in the ZP of most mammalian species. As a proof of concept, the culture method was tested on bovine zygotes produced from slaughterhouse-derived cow oocytes matured and fertilized in vitro. Using a mouth-controlled pipette, presumptive zygotes were individually rolled over WGA-biofunctionalized barcodes (8 barcodes/embryo) previously placed at the bottom of a drop of manipulation media. Four different barcodes, each one with a different codification, were used to encode 25 embryos (6–7 embryos/barcode codification), which were then cultured together in the same drop of medium. Day 7 (D7) and Day 8 (D8) blastocyst, and barcode retention rates were assessed. In addition, D7 expanded blastocysts were vitrified by the cryotop method and post-warming survival was determined as re-expansion rate at 24 h in culture. Finally, the quality of D8 blastocysts was assessed by differential staining and counting of inner cell mass (ICM) and trophectoderm (TE) cells. In all the experiments, a control group without barcodes was cultured and vitrified-warmed. Data were analyzed by chi-square and Mann–Whitney tests. The presence of barcodes attached to the ZP did not affect in vitro embryo development (D8 blastocysts: 29.7% control n = 309, 36.2% encoded n = 315), post-warming survival (86.4% control n = 66, 80.5% encoded n = 82), or blastocyst quality (IMC/TE: 22.1 ± 1.4/64.5 ± 5.7 control n = 18, 22.2 ± 1.7/64.1 ± 6.1 encoded n = 23). The labelling system was effective until D8 of culture, as all the embryos maintained barcodes attached (4 ± 1.8 barcodes/embryo) and could be identified, even after undergoing vitrification and warming. In conclusion, identification of co-cultured embryos by biofunctionalized barcodes attached to the ZP is feasible and will allow to culture embryos from different donors in the same drop, keeping the benefits of collective culture.
Support was provided by Spanish MEC (TEC2011-29140-C03; RZ2010-00015-0-00; AGL2010-19069), Generalitat Catalunya (2009 SGR 282 and 621), and PIF-UAB Fellowship.
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Kulka U, Ainsbury L, Atkinson M, Barquinero JF, Barrios L, Beinke C, Bognar G, Cucu A, Darroudi F, Fattibene P, Gil O, Gregoire E, Hadjidekova V, Haghdoost S, Herranz R, Jaworska A, Lindholm C, Mkacher R, Mörtl S, Montoro A, Moquet J, Moreno M, Ogbazghi A, Oestreicher U, Palitti F, Pantelias G, Popescu I, Prieto MJ, Romm H, Rothkamm K, Sabatier L, Sommer S, Terzoudi G, Testa A, Thierens H, Trompier F, Turai I, Vandersickel V, Vaz P, Voisin P, Vral A, Ugletveit F, Woda C, Wojcik A. Realising the European Network of Biodosimetry (RENEB). Radiat Prot Dosimetry 2012; 151:621-625. [PMID: 22923244 DOI: 10.1093/rpd/ncs157] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In Europe, a network for biological dosimetry has been created to strengthen the emergency preparedness and response capabilities in case of a large-scale nuclear accident or radiological emergency. Through the RENEB (Realising the European Network of Biodosimetry) project, 23 experienced laboratories from 16 European countries will establish a sustainable network for rapid, comprehensive and standardised biodosimetry provision that would be urgently required in an emergency situation on European ground. The foundation of the network is formed by five main pillars: (1) the ad hoc operational basis, (2) a basis of future developments, (3) an effective quality-management system, (4) arrangements to guarantee long-term sustainability and (5) awareness of the existence of RENEB. RENEB will thus provide a mechanism for quick, efficient and reliable support within the European radiation emergency management. The scientific basis of RENEB will concurrently contribute to increased safety in the field of radiation protection.
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Affiliation(s)
- U Kulka
- Bundesamt für Strahlenschutz, Salzgitter, Germany.
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Pellicer E, González S, Blanquer A, Suriñach S, Baró M, Barrios L, Ibáñez E, Nogués C, Sort J. On the biodegradability, mechanical behavior, and cytocompatibility of amorphous Mg72Zn23Ca5and crystalline Mg70Zn23Ca5Pd2alloys as temporary implant materials. J Biomed Mater Res A 2012; 101:502-17. [DOI: 10.1002/jbm.a.34347] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 05/23/2012] [Accepted: 06/18/2012] [Indexed: 11/10/2022]
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Diaz BM, Barrios L, Fereres A. Interplant movement and spatial distribution of alate and apterous morphs of Nasonovia ribisnigri (Homoptera: Aphididae) on lettuce. Bull Entomol Res 2012; 102:406-14. [PMID: 22289142 DOI: 10.1017/s0007485311000745] [Citation(s) in RCA: 5] [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: 05/13/2023]
Abstract
Knowledge on colonization modes and interplant movement of Nasonovia ribisnigri can contribute to the development of optimal control of this pest. The aim of this study was to determine the spatio-temporal distribution and the mode of spread between adult morphs of Nasonovia ribisnigri, comparing spring and autumn lettuce protected crops. The spatial and temporal pattern was analyzed using the spatial analysis by distance indices (SADIE) methodology and other related displacement indices. The population size of N. ribisnigri was greater in the autumn than in the spring growing seasons due to milder temperatures. The percentage of plants colonized by aphids was higher in spring than in autumn, showing the great dispersal potential of this aphid species independent of their population size. Differential propensity for initial displacement from the central plant was observed between adult morphs in spring, resulting in a greater ability of apterous than alate aphids to spread far away from the source plant. In autumn, both adult morphs showed an initial reduced displacement; however, the number of plants infested (≈20%) with at least one aphid at this initial time (seven days) was similar for both adult morphs and both growing seasons. Analysis of the spatial pattern of both adult morphs revealed a predominantly random distribution for both spring and autumn trials. This pattern was achieved by a prevalent random movement over the area (γ≈0.5). These results highlight the ability of the apterous N. ribisnigri to spread within greenhouse lettuce crops early in the spring, suggesting that detection of the pest by deep visual inspection is required after lettuce emergence.
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Affiliation(s)
- B M Diaz
- Departamento de Protección Vegetal, Instituto de Ciencias Agrarias, (ICA-CSIC), C/Serrano 115 Dpdo., Madrid 28006, Spain
| | - L Barrios
- Centro Técnico de Informática (CTI-CSIC). C/Pinar 24, Madrid 28006, Spain
| | - A Fereres
- Departamento de Protección Vegetal, Instituto de Ciencias Agrarias, (ICA-CSIC), C/Serrano 115 Dpdo., Madrid 28006, Spain
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González S, Pellicer E, Fornell J, Blanquer A, Barrios L, Ibáñez E, Solsona P, Suriñach S, Baró M, Nogués C, Sort J. Improved mechanical performance and delayed corrosion phenomena in biodegradable Mg–Zn–Ca alloys through Pd-alloying. J Mech Behav Biomed Mater 2012; 6:53-62. [DOI: 10.1016/j.jmbbm.2011.09.014] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 09/23/2011] [Accepted: 09/25/2011] [Indexed: 10/15/2022]
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Fernández-Rosas E, Baldi A, Ibañez E, Barrios L, Novo S, Esteve J, Plaza JA, Duch M, Gómez R, Castell O, Nogués C, Fernández-Sánchez C. Chemical functionalization of polysilicon microparticles for single-cell studies. Langmuir 2011; 27:8302-8308. [PMID: 21661741 DOI: 10.1021/la200857x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In this work, two types of polycrystalline silicon (polysilicon) microparticles were modified with specific ligands in order to be selectively attached to chemical residues located at the plasma membrane and thus to be applied to study individual cells in culture. Two different functionalization approaches based on adsorption and covalent attachment were assayed. A comparative study of the efficiency of the ligand immobilization and stability of the modified particle in the culture medium was carried out using the selected ligands labeled with a fluorophore. Cylindrical microparticles (nonencoded microparticles) and shape-encoded microparticles (bar codes) were used with the aim of demonstrating the nondependence of the particle size and shape on the efficiency of the immobilization protocol. Fluorescence imaging and statistical analysis of the recorded fluorescence intensity showed that the covalent attachment of the ligand to the surface of the microparticle, previously modified with an aldehyde-terminated silane, gave the best results. As a proof of concept, Vero cells in culture were labeled with the covalently modified bar codes and successfully tracked for up to 1 week without observing any alteration in the viability of the cells. Bar code numbers could be easily read by eye using a bright-field optical microscope. It is anticipated that such modified microparticles could be feasible platforms for the introduction of other analytical functions of interest in single-cell monitoring and cell sorting in automatic analysis systems.
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Affiliation(s)
- E Fernández-Rosas
- Instituto de Microelectrónica de Barcelona, IMB-CNM (CSIC), Campus UAB, 08193-Bellaterra, Barcelona, Spain
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Rocon E, Gallego JA, Barrios L, Victoria AR, Ibanez J, Farina D, Negro F, Dideriksen JL, Conforto S, D'Alessio T, Severini G, Belda-Lois JM, Popovic LZ, Grimaldi G, Manto M, Pons JL. Multimodal BCI-mediated FES suppression of pathological tremor. Annu Int Conf IEEE Eng Med Biol Soc 2011; 2010:3337-40. [PMID: 21097230 DOI: 10.1109/iembs.2010.5627914] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Tremor constitutes the most common movement disorder; in fact 14.5% of population between 50 to 89 years old suffers from it. Moreover, 65% of patients with upper limb tremor report disability when performing their activities of daily living (ADL). Unfortunately, 25% of patients do not respond to drugs or neurosurgery. In this regard, TREMOR project proposes functional compensation of upper limb tremors with a soft wearable robot that applies biomechanical loads through functional electrical stimulation (FES) of muscles. This wearable robot is driven by a Brain Neural Computer Interface (BNCI). This paper presents a multimodal BCI to assess generation, transmission and execution of both volitional and tremorous movements based on electroencephalography (EEG), electromyography (EMG) and inertial sensors (IMUs). These signals are combined to obtain: 1) the intention to perform a voluntary movement from cortical activity (EEG), 2) tremor onset, and an estimation of tremor frequency from muscle activation (EMG), and 3) instantaneous tremor amplitude and frequency from kinematic measurements (IMUs). Integration of this information will provide control signals to drive the FES-based wearable robot.
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Affiliation(s)
- E Rocon
- Bioengineering Group, CSIC, Madrid, Spain.
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Fourati Ben Mustapha S, Khrouf M, Kacem Ben Rejeb K, Elloumi Chaabene H, Merdassi G, Wahbi D, Ben Meftah M, Zhioua F, Zhioua A, Azzarello A, Host T, Mikkelsen AL, Theofanakis CP, Dinopoulou V, Mavrogianni D, Partsinevelos GA, Drakakis P, Stefanidis K, Bletsa A, Loutradis D, Rienzi L, Cobo A, Paffoni A, Scarduelli C, Capalbo A, Garrido N, Remohi J, Ragni G, Ubaldi FM, Herrer R, Quera M, GIL E, Serna J, Grondahl ML, Bogstad J, Agerholm IE, Lemmen JG, Bentin-Ley U, Lundstrom P, Kesmodel US, Raaschou-Jensen M, Ladelund S, Guzman L, Ortega C, Albuz FK, Gilchrist RB, Devroey P, Smitz J, De Vos M, Bielanska M, Leveille MC, Borghi E, Magli MC, Figueroa MJ, Mascaretti G, Ferraretti AP, Gianaroli L, Szlit E, Leocata Nieto F, Maggiotto G, Arenas G, Tarducci Bonfiglio N, Ahumada A, Asch R, Sciorio R, Dayoub N, Thong J, Pickering S, Ten J, Carracedo MA, Guerrero J, Rodriguez-Arnedo A, Llacer J, Bernabeu R, Tatone C, Heizenrieder T, Di Emidio G, Treffon P, Seidel T, Eichenlaub-Ritter U, Cortezzi SS, Cabral EC, Ferreira CR, Trevisan MG, Figueira RCS, Braga DPAF, Eberlin MN, Iaconelli Jr. A, Borges Jr. E, Zabala A, Pessino T, Blanco L, Rey Valzacchi G, Leocata F, Ahumada A, Vanden Meerschaut F, Heindryckx B, Qian C, Deforce D, Leybaert L, De Sutter P, De las Heras M, De Pablo JL, Navarro B, Agirregoikoa JA, Barrenetxea G, Cruz M, Perez-Cano I, Gadea B, Herrero J, Martinez M, Roldan M, Munoz M, Pellicer A, Meseguer M, Munoz M, Cruz M, Roldan M, Gadea B, Galindo N, Martinez M, Pellicer A, Meseguer M, Perez-Cano I, Scarselli F, Alviggi E, Colasante A, Minasi MG, Rubino P, Lobascio M, Ferrero S, Litwicka K, Varricchio MT, Giannini P, Piscitelli P, Franco G, Zavaglia D, Nagy ZP, Greco E, Urner F, Wirthner D, Murisier F, Mock P, Germond M, Amorocho Llanos B, Calderon G, Lopez D, Fernandez L, Nicolas M, Landeras J, Finn-Sell SL, Leandri R, Fleming TP, Macklon NS, Cheong YC, Eckert JJ, Lee JH, Jung YJ, Hwang HK, Kang A, An SJ, Jung JY, Kwon HC, Lee SJ, Palini S, Zolla L, De Stefani S, Scala V, D'Alessandro A, Polli V, Rocchi P, Tiezzi A, Pelosi E, Dusi L, Bulletti C, Fadini R, Lain M, Mignini Renzini M, Brambillasca F, Coticchio G, Merola M, Guglielmo MC, Dal Canto M, Figueira R, Setti AS, Braga DPAF, Iaconelli Jr. A, Borges Jr. E, Worrilow KC, Uzochukwu CD, Eid S, Le Gac S, Esteves TC, van Rossem F, van den Berg A, Boiani M, Kasapi E, Panagiotidis Y, Goudakou M, Papatheodorou A, Pasadaki T, Prapas N, Prapas Y, Panagiotidis Y, Kasapi E, Goudakou M, Papatheodorou A, Pasadaki T, Vanderzwalmen P, Prapas N, Prapas Y, Norasing S, Atchajaroensatit P, Tawiwong W, Thepmanee O, Saenlao S, Aojanepong J, Hunsajarupan P, Sajjachareonpong K, Punyatanasakchai P, Maneepalviratn S, Jetsawangsri U, Herrero J, Cruz M, Tejera A, Rubio I, Romero JL, Meseguer M, Nordhoff V, Schlatt S, Schuring AN, Kiesel L, Kliesch S, Azambuja R, Okada L, Lazzari V, Dorfman L, Michelon J, Badalotti M, Badalotti F, Petracco A, Schwarzer C, Esteves TC, Nordhoff V, Schlatt S, Boiani M, Versieren K, Heindryckx B, De Croo I, Lierman S, De Vos W, Van den Abbeel E, Gerris J, De Sutter P, Milacic I, Borogovac D, Veljkovic M, Arsic B, Jovic Bojovic D, Lekic D, Pavlovic D, Garalejic E, Guglielmo MC, Coticchio G, Albertini DF, Dal Canto M, Brambillasca F, Mignini Renzini M, De Ponti E, Fadini R, Sanges F, Talevi R, Capalbo A, Papini L, Mollo V, Ubaldi FM, Rienzi LF, Gualtieri R, Albuz FK, Guzman L, Orteg C, Gilchrist RB, Devroey P, De Vos M, Smitz J, Choi J, Lee H, Ku S, Kim S, Choi Y, Kim J, Moon S, Demilly E, Assou S, Moussaddykine S, Dechaud H, Hamamah S, Takisawa T, Doshida M, Hattori H, Nakamura Y, Kyoya T, Shibuya Y, Nakajo Y, Tasaka A, Toya M, Kyono K, Novo S, Penon O, Gomez R, Barrios L, Duch M, Santalo J, Esteve J, Nogues C, Plaza JA, Perez-Garcia L, Ibanez E, Chavez S, Loewke K, Behr B, Reijo Pera R, Huang S, Wang H, Soong Y, Chang C, Okimura T, Kuwayama M, Mori C, Morita M, Uchiyama K, Aono F, Kato K, Takehara Y, Kato O, Minasi M, Casciani V, Scarselli F, Rubino P, Colasante A, Arizzi L, Litwicka K, Ferrero S, Mencacci C, Piscitelli C, Giannini P, Cucinelli F, Tocci A, Nagy ZP, Greco E, Wydooghe E, Vandaele L, Dewulf J, Van den Abbeel E, De Sutter P, Van Soom A, Moon JH, Son WY, Mahfoudh A, Henderson S, Jin SG, Shalom-Paz E, Dahan M, Holzer H, Mahmoud K, Triki-Hmam C, Terras K, Zhioua F, Hfaiedh T, Ben Aribia MH, Otsubo H, Egashira A, Tanaka K, Matsuguma T, Murakami M, Murakami K, Otsuka M, Yoshioka N, Araki Y, Kuramoto T, Smit JG, Sterrenburg MD, Eijkemans MJC, Al-Inany HG, Youssef MAFM, Broekmans FJM, Willoughby K, DiPaolo L, Deys L, Lagunov A, Amin S, Faghih M, Hughes E, Karnis M, Ashkar F, King WA, Neal MS, Antonova I, Veleva L, Petkova L, Shterev A, Nogales C, Martinez E, Ariza M, Cernuda D, Gaytan M, Linan A, Guillen A, Bronet F, Cottin V, Fabian D, Allemann F, Koller A, Spira JC, Agudo D, Martinez-Burgos M, Arnanz A, Basile N, Rodriguez A, Bronet F, Cho YS, Filioli Uranio M, Ambruosi B, Paternoster MS, Totaro P, Sardanelli AM, Dell'Aquila ME, Zollner U, Hofmann T, Zollner KP, Kovacic B, Roglic P, Vlaisavljevic V, Sole M, Santalo J, Boada M, Coroleu B, Veiga A, Martiny G, Molinari M, Revelli A, Chimote NM, Chimote M, Mehta B, Chimote NN, Sheikh N, Nath N, Mukherjee A, Rakic K, Reljic M, Kovacic B, Vlaisavljevic V, Ingerslev HJ, Kirkegaard K, Hindkjaer J, Grondahl ML, Kesmodel US, Agerholm I, Kitasaka H, Fukunaga N, Nagai R, Yoshimura T, Tamura F, Kitamura K, Hasegawa N, Nakayama K, Katou M, Itoi F, Asano E, Deguchi N, Ooyama K, Hashiba Y, Asada Y, Michaeli M, Rotfarb N, Karchovsky E, Ruzov O, Atamny R, Slush K, Fainaru O, Ellenbogen A, Chekuri S, Chaisrisawatsuk T, Chen P, Pangestu M, Jansen S, Catt S, Molinari E, Racca C, Revelli A, Ryu C, Kang S, Lee J, Chung D, Roh S, Chi H, Yokota Y, Yokota M, Yokota H, Sato S, Nakagawa M, Komatsubara M, Makita M, Araki Y, Yoshimura T, Asada Y, Fukunaga N, Nagai R, Kitasaka H, Itoi F, Tamura F, Kitamura K, Hasegawa N, Katou M, Nakayama K, Asano E, Deguchi N, Oyama K, Hashiba Y, Naruse K, Kilani S, Chapman MG, Kwik M, Chapman M, Guven S, Odaci E, Yildirim O, Kart C, Unsal MA, Yulug E, Isachenko E, Maettner R, Strehler E, Isachenko V, Hancke K, Kreienberg R, Sterzik K, Coticchio G, Guglielmo MC, Dal Canto M, Albertini DF, Brambillasca F, Mignini Renzini M, Fadini R, Zheng XY, Wang LN, Liu P, Qiao J, Inoue F, Dashtizad M, Wahid H, Rosnina Y, Daliri M, Hajarian H, Akbarpour M, Abbas Mazni O, Knez K, Tomaevic T, Vrtacnik Bokal E, Zorn B, Virant Klun I, Koster M, Liebenthron J, Nicolov A, van der Ven K, van der Ven H, Montag M, Fayazi M, Salehnia M, Beigi Boroujeni M, Khansarinejad B, Deignan K, Emerson G, Mocanu E, Wang JJ, Andonov M, Linara E, Ahuja KK, Nachef S, Figueira RCS, Braga DPAF, Setti AS, Iaconelli Jr. A, Pasqualotto FF, Borges Jr. E, Pasqualotto E, Borges Jr. E, Pasqualotto FF, Chang CC, Bernal DP, Elliott TA, Shapiro DB, Toledo AA, Nagy ZP, Economou K, Davies S, Argyrou M, Doriza S, Sisi P, Moschopoulou M, Karagianni A, Mendorou C, Polidoropoulos N, Papanicopoulos C, Stefanis P, Karamalegos C, Cazlaris H, Koutsilieris M, Mastrominas M, Gotts S, Doshi A, Harper J, Serhal P, Borini A, Guzeloglu-Kayisli O, Bianchi V, Seli E, Bianchi V, Lappi M, Bonu MA, Borini A, Mizuta S, Hashimoto H, Kuroda Y, Matsumoto Y, Mizusawa Y, Ogata S, Yamada S, Kokeguchi S, Noda Y, Shiotani M, Stojkovic M, Ilic M, Markovic N, Stojkovic P, Feng G, Zhang B, Zhou H, Zhou L, Gan X, Qin X, Shu J, Wu F, Molina Botella I, Lazaro Ibanez E, Debon Aucejo A, Pertusa J, Fernandez Colom PJ, Pellicer A, Li C, Zhang Y, Cui Y, Zhao H, Liu J, Oliveira JBA, Petersen CG, Mauri AL, Massaro FC, Silva LFI, Ricci J, Cavagna M, Pontes A, Vagnini LD, Baruffi RLR, Franco Jr. JG, Massaro FC, Petersen CG, Vagnini LD, Mauri AL, Silva LFI, Felipe V, Cavagna M, Pontes A, Baruffi RLR, Oliveira JBA, Franco Jr. JG, Vilela M, Tiveron M, Lombardi C, Viglierchio MI, Marconi G, Rawe V, Wale PL, Gardner DK, Nakagawa K, Sugiyama R, Nishi Y, Kuribayashi Y, Jyuen H, Yamashiro E, Shirai A, Sugiyama R, Inoue M, Salehnia M, Hovatta O, Tohonen V, Inzunza J, Parmegiani L, Cognigni GE, Bernardi S, Ciampaglia W, Infante FE, Tabarelli de Fatis C, Pocognoli P, Arnone A, Maccarini AM, Troilo E, Filicori M, Radwan P, Polac I, Borowiecka M, Bijak M, Radwan M. POSTER VIEWING SESSION - EMBRYOLOGY. Hum Reprod 2011. [DOI: 10.1093/humrep/26.s1.79] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Clément R, Barrios L, Rodat O. [The concept of characterized malpractice in wrongful birth]. J Gynecol Obstet Hum Reprod 2010; 39:663-666. [PMID: 20692110 DOI: 10.1016/j.jgyn.2010.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2010] [Revised: 06/08/2010] [Accepted: 06/14/2010] [Indexed: 05/29/2023]
Abstract
OBJECTIVES The law of March2002 was introducing a new concept of liability in the field of prenatal diagnosis, survey and investigations. For wrongful birth, medical physicians are responsible for newborn infants with congenital or hereditary disorder only in a case of characterized malpractices. MATERIALS AND METHODS We performed a study about decisions that awarded or refused monetary damages specifically to the parents in the light of this new law. This research was performed by using official court rulings website, crossed in the search engine two expression-keys that were characterized: fault and antenatal diagnosis. Fifteen rulings were reviewed and studied. The matter of our research is to understand how the judges characterize the medical malpractice and insist upon the qualification "Blatant" in the field of prenatal medical liability? RESULTS In fact, judicial decisions explicit more what it is not a characterized fault than what it is. Such judicial rejections stated that the medical practices were based on to established medical references and so couldn't be characterized. The taking care, the survey and the biological and radiological investigations of the pregnancy were evaluated in accordance to the knowledge of science although they didn't diagnose fetal malformations. Only four rulings accepted this kind of medical fault, focused the notion of medical neglect accompanied with hurriedness for some judges when physicians performed in particular antenatal echography. In these circumstances, the physician performed quickly and without interest the medical investigations which missed to detect fetal malformations. Two rulings of them categorized the malpractice by the inversion of results, and by the no information about unusual margin of error for cellular culture. The judge argued that negligence of health-care-providers denied to the parents the psychological preparation of hosting disabilities newborn. In this point of view, the judges want to damage parent's injuries.
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Affiliation(s)
- R Clément
- Laboratoire de médecine légale, faculté de médecine, 1, rue Gaston-Veil, 44093 Nantes cedex, France.
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Novo S, Barrios L, Santalo J, Gomez-Martinez R, Duch M, Esteve J, Plaza JA, Nogues C, Ibanez E. A novel embryo identification system by direct tagging of mouse embryos using silicon-based barcodes. Hum Reprod 2010; 26:96-105. [DOI: 10.1093/humrep/deq309] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Benkhaled L, Barrios L, Mestres M, Caballin MR, Ribas M, Barquinero JF. Analysis of γ-rays induced chromosome aberrations: A fingerprint evaluation with a combination of pan-centromeric and pan-telomeric probes. Int J Radiat Biol 2009; 82:869-75. [PMID: 17178627 DOI: 10.1080/09553000600979092] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [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: 10/23/2022]
Abstract
PURPOSE To evaluate the types of induced chromosome aberrations after the exposure of peripheral blood to gamma-rays by the simultaneous detection of all centromeres and telomeres; and to analyse the suitability of different radiation fingerprints for the assessment of radiation quality in cases of recent exposures. MATERIAL AND METHODS Peripheral blood samples were irradiated at 2, 4 and 6 Gy of gamma-rays. Cytogenetic analysis was carried out by fluorescence in situ hybridization (FISH) technique with pan-centromeric and peptide nucleic acid (PNA)-telomeric DNA probes. Cells were analysed using a Cytovision FISH workstation, chromosome aberrations and the length of the acentric fragments were recorded. RESULTS The total number of the incomplete chromosome elements was 276. The ratio between incomplete elements and multicentrics was 0.38. The number of acentrics was 1096, 71% were complete acentrics, 15% incomplete acentrics, and 14% interstitial fragments. The relative length of complete, incomplete and interstitial acentrics fragments were 2.70 +/- 0.04, 1.91 +/- 0.07, and 1.42 +/- 0.04 respectively. The mean value of the F-ratio was 11.5 higher than the one, 5.5, previously obtained for alpha-particles. For the G-ratio there was no difference between gamma-rays and alpha-particles, 2.8 and 2.8 respectively. The mean value of the H-ratio for gamma-rays, 0.25, was lower than for alpha-particles 0.40. CONCLUSION The results support that the percentage of incomplete chromosome aberrations depends on radiation type; low-linear energy transfer (LET) radiation would produces less incomplete aberrations than high-LET radiation. The F- and H-ratios seem to be good indicators of radiation quality, although a real estimation of the H-ratio is only possible using pan-telomeric probes.
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Affiliation(s)
- L Benkhaled
- Unitat d'Antropologia, Dpt. Biologia Animal, Biologia Vegetal i Ecologia, Facultat de Ciències, Universitat Autònoma de Barcelona, Bellaterra, Spain
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Mestres M, Caballin MR, Schmid E, Stephan G, Sachs R, Barrios L, Barquinero JF. Analysis ofα‐particle induced chromosome aberrations in human lymphocytes, using pan‐centromeric and pan‐telomeric probes. Int J Radiat Biol 2009; 80:737-44. [PMID: 15799619 DOI: 10.1080/09553000400017416] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [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: 10/25/2022]
Abstract
PURPOSE The aim of the present study has been the evaluation of the incomplete chromosome aberrations induced after alpha-particle irradiation by the simultaneous detection of all centromeres and telomeres present in human lymphocytes. Moreover, a study on the lengths of the different acentric fragments is presented. MATERIALS AND METHODS Attached lymphocytes were irradiated at doses of 0.2, 0.5, 0.7 and 1 Gy using a 241Am source. Flourescent in-situ hybridization (FISH) techniques were applied using pan-centromeric and pan-telomeric probes. All abnormal cells were digitalised and analysed using a Cytovision FISH workstation. The description of all abnormalities observed, and the length of the acentric fragments was recorded. RESULTS A total of 378 incomplete chromosomes plus incomplete acentrics was found. Cases with more than 92 telomeres were not detected. The ratio between total incomplete elements and multicentrics was 1.00. The total number of acentric (ace) fragments was 822; 57% of them were complete fragments ace (+,+), 26% incomplete fragments ace (+,-), and 17% interstitial fragments ace(-,-); the mean relative lengths were 2.91 +/- 0.06, 1.91 +/- 0.07 and 1.63 +/- 0.07, respectively. In all three cases a secondary peak in the length distribution was found, corresponding to a relative length between 3.5 and 4. CONCLUSION The percentage of incomplete rejoinings is higher after alpha-particle exposure than that described previously for low-linear energy transfer (LET) radiation exposures. The results seem to indicate that compared to low-LET radiation, after alpha-particle exposure centromere-containing elements are more likely to be repaired.Many interstitial fragments are large linear forms that cannot be considered as non-distinguishable acentric rings.
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Affiliation(s)
- M Mestres
- Unitat d'Antropologia, Dpt. Biologia Animal, Biologia Vegetal i Ecologia, Facultat de Ciències, E-08193, Universitat Autònoma de Barcelona, Bellaterra, Spain
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Moreno LA, De Henauw S, González-Gross M, Kersting M, Molnár D, Gottrand F, Barrios L, Sjöström M, Manios Y, Gilbert CC, Leclercq C, Widhalm K, Kafatos A, Marcos A. Design and implementation of the Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study. Int J Obes (Lond) 2009; 32 Suppl 5:S4-11. [PMID: 19011652 DOI: 10.1038/ijo.2008.177] [Citation(s) in RCA: 261] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To provide an overview of the Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study (HELENA-CSS) design, with particular attention to its quality control procedures. Other important methodological aspects are described in detail throughout this supplement. DESIGN Description of the HELENA-CSS sampling and recruitment approaches, standardization and harmonization processes, data collection and analysis strategies and quality control activities. RESULTS The HELENA-CSS is a multi-centre collaborative study conducted in European adolescents located in urban settings. The data management systems, quality assurance monitoring activities, standardized manuals of operating procedures and training and study management are addressed in this paper. Various quality controls to ensure collection of valid and reliable data will be discussed in this supplement, as well as quantitative estimates of measurement error. CONCLUSION The great advantage of the HELENA-CSS is the strict standardization of the fieldwork and the blood analyses, which precludes to a great extent the kind of immeasurable confounding bias that often interferes when comparing results from isolated studies.
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Affiliation(s)
- L A Moreno
- Escuela Universitaria de Ciencias de la Salud, Universidad de Zaragoza, Zaragoza, Spain.
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Esposito-avella M, Brown P, Tejeira I, Buitrago R, Barrios L, Sanchez C, Gupta MP, Cedeño J. Pharmacological Screening of Panamanian Medicinal Plants. Part 1. ACTA ACUST UNITED AC 2008. [DOI: 10.3109/13880208509070683] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Mestres M, Caballín MR, Barrios L, Ribas M, Barquinero JF. RBE of X Rays of Different Energies: A Cytogenetic Evaluation by FISH. Radiat Res 2008; 170:93-100. [DOI: 10.1667/rr1280.1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2007] [Accepted: 02/27/2008] [Indexed: 11/03/2022]
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Benkhaled L, Xunclà M, Caballín MR, Barrios L, Barquinero JF. Induction of complete and incomplete chromosome aberrations by bleomycin in human lymphocytes. Mutat Res 2008; 637:134-41. [PMID: 17825850 DOI: 10.1016/j.mrfmmm.2007.07.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2007] [Revised: 07/23/2007] [Accepted: 07/26/2007] [Indexed: 05/17/2023]
Abstract
Bleomycin (BLM) is a clastogenic compound, which due to the overdispersion in the cell distribution of induced dicentrics has been compared to the effect of high-LET radiation. Recently, it has been described that in fibroblast derived cell lines BLM induces incomplete chromosome elements more efficiently than any type of ionizing radiation. The objective of the present study was to evaluate in human lymphocytes the induction of dicentrics and incomplete chromosome elements by BLM. Peripheral blood samples have been treated with different concentrations of BLM. Two cytogenetic techniques were applied, fluorescence plus Giemsa (FPG) and FISH using pan-centromeric and pan-telomeric probes. The observed frequency of dicentric equivalents increases linearly with the BLM concentration, and for all BLM concentrations the distribution of dicentric equivalents was overdispersed. In the FISH study the ratio between total incomplete elements and multicentrics was 0.27. The overdispersion in the dicentric cell distribution, and the linear BLM-concentration dependence of dicentrics can be compared to the effect of high-LET radiation, on the contrary the ratio of incomplete elements and multicentrics is similar to the one induced by low-LET radiation (~0.40). The elevated proportion of interstitial deletions in relation to total acentric fragments, higher than any type of ionizing radiation could be a characteristic signature of the clastogenic effect of BLM.
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Affiliation(s)
- L Benkhaled
- Universitat Autònoma de Barcelona, Unitat d'Antropologia Biológica, Departament de Biologia Animal, Biologia Vegetal i Ecologia, E-08193, Bellaterra, Spain
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Barrios V, Escobar C, Navarro A, Barrios L, Navarro-Cid J, Calderón A. Lercanidipine is an effective and well tolerated antihypertensive drug regardless the cardiovascular risk profile: The LAURA study. Int J Clin Pract 2006; 60:1364-70. [PMID: 17073834 PMCID: PMC1636683 DOI: 10.1111/j.1742-1241.2006.01176.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
To determine whether the antihypertensive effectiveness of lercanidipine was independent of the different cardiovascular risk levels. Patients with treated or untreated mild-to-moderate essential hypertension were included in a multicentre, prospective, non-comparative, open-label study. Patients received lercanidipine (10 mg/day, uptitrated to 20 mg/day) during 6 months. A total of 3175 patients, age 63 +/- 10 years, 51% women, were included. The cardiovascular risk was low in 237 patients, medium in 1396, high in 722, and very high in 820. At baseline, blood pressure (BP) was 159.5 +/- 11.7/95.2 +/- 7.4 mmHg. BP was progressively higher according to increase in cardiovascular risk. After 6 months of treatment, BP was 136.0 +/- 9.7/79.7 +/- 6.8 mmHg. The decrease in systolic BP and diastolic BP at each follow-up visit compared with baseline was statistically significant both in the intergroup and intragroup comparisons (p < 0.001). Mean decreases of systolic blood pressure (SBP) and diastolic blood pressure (DBP) were -18.5/-13.8 mmHg in the low risk group, -23/-15.2 mmHg in the medium risk group, -24.4/-16.1 mmHg in the high risk group, and -27.4/-17.4 mmHg in the very high risk group. Most frequent side effects were oedema (5.1%), headache (3.3%), flushes (2.5%), and asthenia (1%). Only 1.7% of patients discontinued antihypertensive medication because of adverse events. Tolerability of lercanidipine was independent of the cardiovascular risk group. Lercanidipine was effective and well-tolerated in patients with mild-to-moderate hypertension in the daily practice. The effectiveness and safety of the drug were independent of the degree of cardiovascular risk.
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Affiliation(s)
- V Barrios
- Department of Cardiology, Hospital Ramón y Cajal, Madrid, Spain.
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Montoro A, Rodríguez P, Almonacid M, Villaescusa JI, Verdú G, Caballín MR, Barrios L, Barquinero JF. Biological dosimetry in a group of radiologists by the analysis of dicentrics and translocations. Radiat Res 2005; 164:612-7. [PMID: 16238438 DOI: 10.1667/rr3444.1] [Citation(s) in RCA: 18] [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: 11/03/2022]
Abstract
The results of a cytogenetic study carried out in a group of nine radiologists are presented. Chromosome aberrations were detected by fluorescence plus Giemsa staining and fluorescence in situ hybridization. Dose estimates were obtained by extrapolating the yield of dicentrics and translocations to their respective dose-effect curves. In seven individuals, the 95% confidence limits of the doses estimated by dicentrics did not include 0 Gy. The 99 dicentrics observed in 17,626 cells gave a collective estimated dose of 115 mGy (95% confidence limits 73-171). For translocations, five individuals had estimated doses that were clearly higher than the total accumulated recorded dose. The 82 total apparently simple translocations observed in 9722 cells gave a collective estimated dose of 275 mGy (132-496). The mean genomic frequencies (x100 +/- SE) of complete and total apparently simple translocations observed in the group of radiologists (1.91 +/- 0.30 and 2.67 +/- 0.34, respectively) were significantly higher than those observed in a matched control group (0.53 +/- 0.10 and 0.87 +/- 0.13, P < 0.01 in both cases) and in another occupationally exposed matched group (0.79 +/- 0.12 and 1.14 +/-0.14, P < 0.03 and P < 0.01, respectively). The discrepancies observed between the physically recorded doses and the biologically estimated doses indicate that the radiologists did not always wear their dosimeters or that the dosimeters were not always in the radiation field.
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Affiliation(s)
- A Montoro
- Servicio de Protección Radiológica, Hospital Universitario La Fe, E-46009, Valencia, Spain
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Whitehouse CA, Edwards AA, Tawn EJ, Stephan G, Oestreicher U, Moquet JE, Lloyd DC, Roy L, Voisin P, Lindholm C, Barquinero J, Barrios L, Caballin MR, Darroudi F, Fomina J. Translocation yields in peripheral blood lymphocytes from control populations. Int J Radiat Biol 2005; 81:139-45. [PMID: 16019923 DOI: 10.1080/09553000500103082] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [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]
Abstract
PURPOSE To record the latest information on control levels of translocations in cultured human lymphocytes. MATERIALS AND METHODS Control-level data from seven European laboratories that are using fluorescence in situ hybridization (FISH) techniques for retrospective biological dosimetry have been combined in a meta-analysis. After correction for the differing probe combinations used, tests of consistency are performed. The combined data have been used to test for individual variation, systematic variation with age, gender and smoking habits. RESULTS There is a strong variation of translocation yield with age but no variation was detectable with gender or smoking habits. After correction for age, homogeneity tests showed that about 10% of individuals were outside the 95% confidence limits as opposed to 5% expected. From a total of 385, there is an excess of about 20 individuals most of whom have an unexpectedly high yield of translocations. CONCLUSIONS For retrospective biological dosimetry purposes a generic age-dependent control level can be assumed. No other lifestyle factors such as smoking appear to have a significant effect on translocation yield.
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Montoro A, Almonacid M, Serrano J, Saiz M, Barquinero JF, Barrios L, Verdú G, Pérez J, Villaescusa JI. Assessment by cytogenetic analysis of the radioprotection properties of propolis extract. Radiat Prot Dosimetry 2005; 115:461-4. [PMID: 16381767 DOI: 10.1093/rpd/nci026] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Propolis obtained from honeybee hives has been used in folk medicine as an anti-inflammatory, anti-carcinogenic or immunomodulatory agent. In animal studies, the radioprotector effect of propolis has been attributed to its free-radical scavenging properties. The present study was carried out to show the protective properties of propolis extract against DNA damage induced by gamma irradiation. The evaluation of the radioprotective effect of propolis has been carried out by the analysis of chromosome aberration induction after several doses of gamma rays. The results of an analysis in the presence of ethanol extract of propolis (EEP) were compared with the dose-effect calibration curve for gamma-rays by analysis of chromosome aberrations without propolis, a decrease in the radiation-induced chromosome aberrations has been observed to be higher than 50% for all the doses.
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Affiliation(s)
- A Montoro
- Servicio de Protección Radiológica, Hospital la Fe, Av/Campanar no. 21, Valencia, 46009, Spain.
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