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Montoya Moya D, Molina D, Ordoñez Ortega J. Health-related quality of life of adolescents living with HIV treated at the HIV Clinic at the National Institute of Pediatrics at Mexico City. Eur Psychiatry 2022. [PMCID: PMC9565262 DOI: 10.1192/j.eurpsy.2022.1123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Introduction ATR for children has successfully increase survival to adolescence. Health-related quality of life (HRQoL) is relevant to evaluate the impact of the disease on well-being in adolescents living with HIV (ALH). Kidscreen-52 questionnaire is validated in mexican adolescents to measure HRQoL Objectives To evaluate health related quality of life in a sample of 22 mexican ALH Methods
A sample of ALH in treatment at the HIV Clinic during 2021, were evaluated with Kidscreen-52 by a child psychiatrist. Statistics included non parametric tests and Cohen “d” and “r” size effect to compare T means between ALH and Kidscreen-52 standardized scores. Results
Mean age:14.4+2.5. Gender: 11(50%)boys, 11(50%)girls. ALH showed significantly lower scores in all domains. Girls reported lower scores in physical well-being(p=0.047) and autonomy (p=0.023). Orphan ALH had lower scores in mood and emotions (p=0.021)KIDSCREEN-52 | ALH MEAN/SD | KIDSCREEN-52 MEAN/SD | COHEN’S”d” | “r” |
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PYSICAL WELL-BEING | 18.45+3.9 | 42.6+6.6 | - 4.4 | -0. 91 | PSYCHOLOGICAL WELL-BEING | 23.04+6.03 | 51.2+8.7 | - 3.7 | -0. 88 | MOOD | 25.3+6.13 | 44.8+7.5 | - 2.8 | -0. 81 | SELF-PERCEPTION | 20.27+3.22 | 47.3+7.6 | - 4.6 | -0. 91 | AUTONOMY | 18.09+4.9 | 46.6+9.4 | - 3.8 | -0. 88 | SOCIAL SUPPORT AND PEERS | 24+5.1 | 51.0+9.4 | -3.5 | -0. 87 | PARENTS AND HOME LIFE | 20.95+6.2 | 48.6+9.4 | - 3.4 | - 0.86 | FINANCIAL RESOURCES | 9.04+3.21 | 44.7+7.3 | - 6.3 | -0. 95 | SCHOOL ENVIROMENT | 19.73+7.13 | 53.3+7.9 | - 4.46 | -0. 91 | SOCIAL ACCEPTANCE | 12.91+2.11 | 46.3+9.6 | - 4.8 | - 0.92 |
![]() Conclusions - HRQoL were significantly lower in ALH. -Girls showed significantly lower scores in physical well-being and autonomy. - ALH orphans showed significantly lower scores in mood and emotions domain Disclosure No significant relationships.
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Abraham S, Díaz V, Moyano A, Castillo G, Rull J, Suárez L, Murúa AF, Pantano V, Molina D, Ovruski SM. Irradiation dose does not affect male reproductive organ size, sperm storage, and female remating propensity in Ceratitis capitata. Bull Entomol Res 2021; 111:82-90. [PMID: 32744203 DOI: 10.1017/s0007485320000437] [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] [Indexed: 06/11/2023]
Abstract
The Mediterranean fruit fly Ceratitis capitata is a globally invasive pest, often controlled with the sterile insect technique (SIT). For the SIT, mass-rearing of the target insect followed by irradiation are imperatives. Sterile males are often less able to inhibit female remating and transfer less number of sperm, and even irradiation could affect male reproductive organs, with consequences for their ability to inhibit female remating. On the other hand, male age could affect their ability to modulate female response after mating. Here, we evaluated the quality of the genetic sexing strain Vienna-8-tsl mass-reared in Bioplanta San Juan, Argentina, under laboratory conditions, with regard to: (i) the ability of sterile males irradiated at 100 or 140 Gy to inhibit female remating, in the same day and at 24 h of first copulation; (ii) the ability of 3, 4 or 5 day-old sterile males to inhibit female remating at 24 h of first copulation, and (iii) the effect of a reduction in irradiation doses on the number of sperm stored by females and reproductive organ size in virgin males. Sterile males were better able than wild males to inhibit female remating in the same day of first copulation and as able as wild males 1 day after first copulation. Male age did not affect their ability to inhibit female receptivity. Number of sperm stored by females, testes size and ectodermal accessory glands size were not affected by male identity, while sterile 100 Gy males had larger mesodermal accessory glands than control lab males. A reduction in irradiation dose does not impact any variable measured, except for percentage of sperm-depleted females: females mated with sterile 100 Gy males had lower probabilities to store sperm. The results showed here are very encouraging for tsl Vienna 8 strain reared in Argentina and are discussed in comparison with previous studies in C. capitata female remating with dissimilar results.
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Affiliation(s)
- S Abraham
- Laboratorio de Investigaciones Ecoetológicas de Moscas de la Fruta y sus Enemigos Naturales (LIEMEN), División Control Biológico de Plagas, PROIMI-Biotecnología, CONICET, Tucumán, Argentina
| | - V Díaz
- Laboratorio de Investigaciones Ecoetológicas de Moscas de la Fruta y sus Enemigos Naturales (LIEMEN), División Control Biológico de Plagas, PROIMI-Biotecnología, CONICET, Tucumán, Argentina
| | - A Moyano
- Laboratorio de Investigaciones Ecoetológicas de Moscas de la Fruta y sus Enemigos Naturales (LIEMEN), División Control Biológico de Plagas, PROIMI-Biotecnología, CONICET, Tucumán, Argentina
| | - G Castillo
- Laboratorio de Investigaciones Ecoetológicas de Moscas de la Fruta y sus Enemigos Naturales (LIEMEN), División Control Biológico de Plagas, PROIMI-Biotecnología, CONICET, Tucumán, Argentina
| | - J Rull
- Laboratorio de Investigaciones Ecoetológicas de Moscas de la Fruta y sus Enemigos Naturales (LIEMEN), División Control Biológico de Plagas, PROIMI-Biotecnología, CONICET, Tucumán, Argentina
| | - L Suárez
- Programa de Control y Erradicación de Mosca de los Frutos de San Juan (ProCEM-San Juan), Nazario Benavides 8000 Oeste (CPA 5407), Rivadavia, San Juan, Argentina
- Dirección de Sanidad Vegetal, Animal y Alimentos (DSVAA), Nazario Benavides 8000 Oeste (CPA 5407), Rivadavia San Juan, Argentina
| | - A F Murúa
- Programa de Control y Erradicación de Mosca de los Frutos de San Juan (ProCEM-San Juan), Nazario Benavides 8000 Oeste (CPA 5407), Rivadavia, San Juan, Argentina
- Dirección de Sanidad Vegetal, Animal y Alimentos (DSVAA), Nazario Benavides 8000 Oeste (CPA 5407), Rivadavia San Juan, Argentina
- IMCN, Diversidad de Invertebrados, FCEFN-Departamento de Biología, UNSJ, Av. Ignacio de la Rosa 590 Oeste (CPA 5402), Rivadavia, San Juan, Argentina
| | - V Pantano
- Programa de Control y Erradicación de Mosca de los Frutos de San Juan (ProCEM-San Juan), Nazario Benavides 8000 Oeste (CPA 5407), Rivadavia, San Juan, Argentina
- Dirección de Sanidad Vegetal, Animal y Alimentos (DSVAA), Nazario Benavides 8000 Oeste (CPA 5407), Rivadavia San Juan, Argentina
| | - D Molina
- Dirección de Sanidad Vegetal, Animal y Alimentos (DSVAA), Nazario Benavides 8000 Oeste (CPA 5407), Rivadavia San Juan, Argentina
| | - S M Ovruski
- Laboratorio de Investigaciones Ecoetológicas de Moscas de la Fruta y sus Enemigos Naturales (LIEMEN), División Control Biológico de Plagas, PROIMI-Biotecnología, CONICET, Tucumán, Argentina
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Maurin L, Ferdinand P, Bouyer V, Denoix A, Jouvin G, Rougeault S, Journeau C, Molina D, Tena P, Ouerdane Y. Remote monitoring of Molten Core-Concrete Interaction experiment with Optical Fibre Sensors & perspectives to improve nuclear safety – DISCOMS project. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202022508004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The DISCOMS project (Distributed Sensing for Corium Monitoring and Safety) aimed at providing innovative solutions not requiring local electrical power supplies, for remote monitoring of a severe nuclear accident. The solutions are based on both long length SPNDs (Self Powered Neutron Detectors) and on distributed OFSs (Optical Fibre Sensors) capable to detect the onset of a severe accident, the corium pouring on the containment building concrete basemat, and its interaction with the concrete floor under the reactor vessel, until it spreads in the core catcher (EPR case). This paper mainly focuses on these last three detection targets achievable with distributed OFSs. It is based on the results of a Molten Core & Concrete Interaction (MCCI) experiment, namely VULCANO, held in June 2018 with a concrete crucible equipped with overall ~ 180 m long optical fibre sensing cables. This small scale experiment (50 kg of prototypical corium) has demonstrated the ability of distributed OFSs to remotely provide useful data during the MCCI run: i) temperature profiles images up to about 580°C (single wavelength Raman DTS reflectometer) until cooling down to room temperature, ii) high spatial-resolution frequency shifts profiles, due to combined (non-selective) strain and temperature influences (Rayleigh OFDR and Brillouin reflectometers), and iii) cables lengths ablated by the corium on sections weakened by the temperature (Raman DTS, Rayleigh OFDR, telecom and photon counting reflectometers).
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Angón E, Castillejo L, Rodríguez J, González A, Molina D, Cueva T, García A. Fry growth modelling in Cichlasoma festae (Cichlidae) with Biobloc technology (BFT). Cienvet 2019. [DOI: 10.19137/cienvet-201921203] [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: 11/05/2022] Open
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Garcia-Vicente A, Pérez-Beteta J, Amo-Salas M, Molina D, Jimenez-Londoño G, Soriano-Castrejón A, Pena Pardo F, Martínez-González A. Predictive and prognostic potential of volume-based metabolic variables obtained by a baseline 18 F-FDG PET/CT in breast cancer with neoadjuvant chemotherapy indication. Rev Esp Med Nucl Imagen Mol 2018. [DOI: 10.1016/j.remnie.2017.12.003] [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: 10/17/2022]
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Jacobs CA, Burnham JM, Jochimsen KN, Molina D, Hamilton DA, Duncan ST. Preoperative Symptoms in Femoroacetabular Impingement Patients Are More Related to Mental Health Scores Than the Severity of Labral Tear or Magnitude of Bony Deformity. J Arthroplasty 2017; 32:3603-3606. [PMID: 28739309 DOI: 10.1016/j.arth.2017.06.053] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 06/19/2017] [Accepted: 06/29/2017] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND The purpose of this study was to determine the relationships between patient factors, mental health status, the condition of the local tissue, magnitude of bony deformity, and preoperative symptoms in a series of femoroacetabular impingement (FAI) patients. METHODS From our prospective outcomes registry, we identified 64 patients with arthroscopically-treated labral tears and cam deformities. We assessed the correlations between patient factors (age, sex, body mass index, level of education), surgical findings (size of labral tear, presence of chondral lesions), mental health factors (VR-12 mental component score [MCS], depression, and preoperative use of psychotropic and/or opioid drugs), magnitude of FAI deformity (alpha and lateral center edge angles), and preoperative hip dysfunction and osteoarthritis outcome score (HOOS) subscales. Patient factors, surgical and radiographic findings, and preoperative HOOS scores were compared between patients with low and high MCS. RESULTS Neither hip pathology nor patient-related factors significantly correlated with HOOS scores. On the contrary, MCS significantly correlated with HOOS symptom (ρ = 0.45, P < .001) and pain scores (ρ = 0.52, P < .001). Low MCS patients had significantly lower preoperative scores for all 5 HOOS subscales (P ≤ .002) and more frequent chondral lesions and comorbid depression (P ≤ .01). CONCLUSION Symptom severity was significantly more related to mental health status than either the size of labral tear or FAI deformity. Patients with low MCS had significantly worse preoperative pain and self-reported function, and a greater prevalence of concomitant chondral lesions. Future studies are necessary to determine if earlier surgical treatment or preoperative psychological and/or pain coping interventions may improve outcomes for those with low MCS.
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Affiliation(s)
- Cale A Jacobs
- Department of Orthopedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky
| | - Jeremy M Burnham
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Kate N Jochimsen
- Division of Athletic Training, Sports Medicine Research Institute, University of Kentucky, Lexington, Kentucky
| | - Domingo Molina
- Department of Orthopedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky
| | - David A Hamilton
- Department of Orthopedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky
| | - Stephen T Duncan
- Department of Orthopedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky
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Garcia-Vicente AM, Pérez-Beteta J, Amo-Salas M, Molina D, Jimenez-Londoño GA, Soriano-Castrejón AM, Pena Pardo FJ, Martínez-González A. Predictive and prognostic potential of volume-based metabolic variables obtained by a baseline 18F-FDG PET/CT in breast cancer with neoadjuvant chemotherapy indication. Rev Esp Med Nucl Imagen Mol 2017; 37:73-79. [PMID: 29102649 DOI: 10.1016/j.remn.2017.09.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 06/22/2017] [Revised: 08/16/2017] [Accepted: 09/13/2017] [Indexed: 12/16/2022]
Abstract
AIM To investigate the usefulness of metabolic variables using 18F-FDG PET/CT in the prediction of neoadjuvant chemotherapy (NC) response and the prognosis in locally advanced breast cancer (LABC). MATERIAL AND METHODS Prospective study including 67 patients with LABC, NC indication and a baseline 18F-FDG PET/CT. After breast tumor segmentation, SUV variables (SUVmax, SUVmean and SUVpeak) and volume-based variables, such as metabolic tumor volume (MTV) and total lesion glycolysis (TLG), were obtained. Tumors were grouped into molecular phenotypes, and classified as responders or non-responders after completion of NC. Disease-free status (DFs), disease-free survival (DFS), and overall survival (OS) were assessed. A univariate and multivariate analysis was performed to study the potential of all variables to predict DFs, DFS, and OS. RESULTS Fourteen patients were classified as responders. Median±SD of DFS and OS was 43±15 and 46±13 months, respectively. SUV and TLG showed a significant correlation (p<0.005) with the histological response, with higher values in responders compared to non-responders. MTV and TLG showed a significant association with DFs (p=0.015 and p=0.038 respectively). Median, mean and SD of MTV and TLG for patients with DFs were: 8.90, 13.73, 15.10 and 33.78, and 90.54 and 144.64, respectively. Median, mean and SD of MTV and TLG for patients with non-DFs were: 16.72, 29.70 and 31.09 and 90.89, 210.98 and 382.80, respectively. No significant relationships were observed with SUV variables and DFs. Volume-based variables were significantly associated with OS and DFS, although in multivariate analysis only MTV was related to OS. No SUV variables showed an association with the prognosis. CONCLUSION Volume-based metabolic variables obtained with 18F-FDG PET/CT, unlike SUV based variables, were good predictors of both neoadjuvant chemotherapy response and prognosis.
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Affiliation(s)
- A M Garcia-Vicente
- Servicio de Medicina Nuclear, Hospital General Universitario de Ciudad Real, Ciudad Real, España.
| | - J Pérez-Beteta
- Instituto de Matemática Aplicada a la Ciencia y la Ingeniería, Universidad de Castilla-La Mancha, Ciudad Real, España
| | - M Amo-Salas
- Departamento de Matemáticas, Universidad de Castilla-La Mancha, Ciudad Real, España
| | - D Molina
- Instituto de Matemática Aplicada a la Ciencia y la Ingeniería, Universidad de Castilla-La Mancha, Ciudad Real, España
| | - G A Jimenez-Londoño
- Servicio de Medicina Nuclear, Hospital General Universitario de Ciudad Real, Ciudad Real, España
| | - A M Soriano-Castrejón
- Servicio de Medicina Nuclear, Hospital General Universitario de Ciudad Real, Ciudad Real, España
| | - F J Pena Pardo
- Servicio de Medicina Nuclear, Hospital General Universitario de Ciudad Real, Ciudad Real, España
| | - A Martínez-González
- Instituto de Matemática Aplicada a la Ciencia y la Ingeniería, Universidad de Castilla-La Mancha, Ciudad Real, España
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Clairet F, Bottereau C, Medvedeva A, Molina D, Conway GD, Silva A, Stroth U. 1 μs broadband frequency sweeping reflectometry for plasma density and fluctuation profile measurements. Rev Sci Instrum 2017; 88:113506. [PMID: 29195393 DOI: 10.1063/1.4991789] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Frequency swept reflectometry has reached the symbolic value of 1 μs sweeping time; this performance has been made possible, thanks to an improved control of the ramp voltage driving the frequency source. In parallel, the memory depth of the acquisition system has been upgraded and can provide up to 200 000 signals during a plasma discharge. Additional improvements regarding the trigger delay determination of the acquisition and the voltage ramp linearity required by this ultra-fast technique have been set. While this diagnostic is traditionally dedicated to the plasma electron density profile measurement, such a fast sweeping rate can provide the study of fast plasma events and turbulence with unprecedented time and radial resolution from the edge to the core. Experimental results obtained on ASDEX Upgrade plasmas are presented to demonstrate the performances of the diagnostic.
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Affiliation(s)
- F Clairet
- CEA, IRFM, 13108 St-Paul-Lez-Durance, France
| | - C Bottereau
- CEA, IRFM, 13108 St-Paul-Lez-Durance, France
| | - A Medvedeva
- CEA, IRFM, 13108 St-Paul-Lez-Durance, France
| | - D Molina
- CEA, IRFM, 13108 St-Paul-Lez-Durance, France
| | - G D Conway
- Max-Planck-Institut für Plasmaphysik, 85748 Garching, Germany
| | - A Silva
- Instituto de Plasmas e Fusão Nuclear, IST, Universidade Lisboa, 1049-00 Lisbon, Portugal
| | - U Stroth
- Max-Planck-Institut für Plasmaphysik, 85748 Garching, Germany
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Moreau P, Bucalossi J, Missirlian M, Samaille F, Courtois X, Gil C, Lotte P, Meyer O, Nardon E, Nouailletas R, Ravenel N, Travere J, Alarcon T, Antusch S, Aumeunier M, Barjat P, Belsare S, Bernard J, Bhandarkar M, Bottereau C, Bourdelle C, Brémond S, Camenen Y, Chaudhari V, Chavda C, Chernyshova M, Clairet F, Colnel J, Czarski T, Choi M, Colledani G, Corre Y, Daniel R, Davis D, Dejarnac R, Devynck P, Dhongde J, Douai D, Elbeze D, Escarguel A, Fenzi C, Figacz W, Guangwu Z, Giacalone J, Guirlet R, Gunn J, Hacquin S, Hao X, Harris J, Hoang G, Houry M, Imbeaux F, Jablonski S, Jardin A, Joshi H, Kasprowicz G, Klepper C, Kowalska-Strzeciwilk E, Kubkowska M, Kumar A, Kumar V, Kumari P, Laqua H, Le-Luyer A, Lee W, Lewerentz M, Lyu B, Malard P, Manenc L, Mansuri I, Marandet Y, Masand H, Mazon D, Molina D, Moureau G, Nam Y, Park H, Pascal J, Patel K, Patel M, Pozniak K, Radloff D, Ranjan S, Rapson C, Raupp G, Rieth M, Sabot R, Santraine B, Sestac D, Sharma M, Shen J, Signoret J, Soni J, Spring A, Spuig P, Sugandhi R, Treuterrer W, Tsitrone E, Varshney S, Vartanian S, Volpe D, Wang F, Werner A, Yun G, Zabolotny W, Zhao W. Measurements and controls implementation for WEST. Fusion Engineering and Design 2017. [DOI: 10.1016/j.fusengdes.2017.01.046] [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] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Lennholm M, Eriksson LG, Turco F, Bouquey F, Darbos C, Dumont R, Giruzzi G, Jung M, Lambert R, Magne R, Molina D, Moreau P, Rimini F, Segui JL, Song S, Traisnel E. Closed Loop Sawtooth Period Control Using Variable ECCD Injection Angles on Tore Supra. Fusion Science and Technology 2017. [DOI: 10.13182/fst09-a4052] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Lennholm
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - L-G. Eriksson
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - F. Turco
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - F. Bouquey
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - C. Darbos
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - R. Dumont
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - G. Giruzzi
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - M. Jung
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - R. Lambert
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - R. Magne
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - D. Molina
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - P. Moreau
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - F. Rimini
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - J-L. Segui
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - S. Song
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
| | - E. Traisnel
- Association EURATOM-CEA DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
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Pérez-Beteta J, Molina D, Martínez-González A, Arregui E, Asenjo B, Iglesias L, Martino J, Pérez-Romasanta L, Arana E, Pérez-García VM. P09.43 Novel geometrical imaging biomarkers predict survival and allow for patient selection for surgery in glioblastoma patients. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Vera L, Pérez-Beteta J, Molina D, Borrás JM, Benavides M, Barcia JA, Velásquez C, Albillo D, Lara P, Pérez-García VM. P09.62 Towards individualized survival prediction in glioblastoma patients using machine learning methods. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.317] [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: 11/12/2022] Open
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Molina D, Pérez-Beteta J, Martínez-González A, Velásquez C, Martino J, Luque B, Revert A, Herruzo I, Arana E, Pérez-García VM. P04.19 Recommendations for computation of textural measures obtained from 3D brain tumor MRIs: A robustness analysis points out the need for standardization. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.159] [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: 11/12/2022] Open
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Goniche M, Huysmans GTA, Turco F, Maget P, Ségui JL, Artaud JF, Giruzzi G, Imbeaux F, Lotte P, Mazon D, Molina D, Udintsev VS. Identification of Fast Particle Triggered Modes by Means of Correlation Electron Cyclotron Emission on Tore Supra. Fusion Science and Technology 2017. [DOI: 10.13182/fst08-a1656] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Goniche
- Association EURATOM-CEA DRFC/SCCP/CEA, CEA-Cadarache, F-13108 Saint Paul-lez-Durance, France
| | - G. T. A. Huysmans
- Association EURATOM-CEA DRFC/SCCP/CEA, CEA-Cadarache, F-13108 Saint Paul-lez-Durance, France
| | - F. Turco
- Association EURATOM-CEA DRFC/SCCP/CEA, CEA-Cadarache, F-13108 Saint Paul-lez-Durance, France
| | - P. Maget
- Association EURATOM-CEA DRFC/SCCP/CEA, CEA-Cadarache, F-13108 Saint Paul-lez-Durance, France
| | - J. L. Ségui
- Association EURATOM-CEA DRFC/SCCP/CEA, CEA-Cadarache, F-13108 Saint Paul-lez-Durance, France
| | - J. F. Artaud
- Association EURATOM-CEA DRFC/SCCP/CEA, CEA-Cadarache, F-13108 Saint Paul-lez-Durance, France
| | - G. Giruzzi
- Association EURATOM-CEA DRFC/SCCP/CEA, CEA-Cadarache, F-13108 Saint Paul-lez-Durance, France
| | - F. Imbeaux
- Association EURATOM-CEA DRFC/SCCP/CEA, CEA-Cadarache, F-13108 Saint Paul-lez-Durance, France
| | - P. Lotte
- Association EURATOM-CEA DRFC/SCCP/CEA, CEA-Cadarache, F-13108 Saint Paul-lez-Durance, France
| | - D. Mazon
- Association EURATOM-CEA DRFC/SCCP/CEA, CEA-Cadarache, F-13108 Saint Paul-lez-Durance, France
| | - D. Molina
- Association EURATOM-CEA DRFC/SCCP/CEA, CEA-Cadarache, F-13108 Saint Paul-lez-Durance, France
| | - V. S. Udintsev
- Association EURATOM-Confédération Suisse, EPFL/SB/CRPP, Station 13 CH-1015, Lausanne, Switzerland
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Udintsev VS, Goniche M, Ségui JL, Giruzzi G, Molina D, Turco F, Huysmans GTA, Maget P, Team TS, Krämer-Flecken A. First Results of Correlation Electron Cyclotron Emission on Tore Supra. Fusion Science and Technology 2017. [DOI: 10.13182/fst06-a1274] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- V. S. Udintsev
- Association EURATOM-Confédération Suisse EPFL0SB0CRPP, Station 13, CH-1015 Lausanne, Switzerland
| | - M. Goniche
- Association EURATOM-Commissariat à l’Energie Atomique CEA/DSM/DRFC, CEA/Cadarache, F-13108 St. Paul-lez-Durance, France
| | - J. L. Ségui
- Association EURATOM-Commissariat à l’Energie Atomique CEA/DSM/DRFC, CEA/Cadarache, F-13108 St. Paul-lez-Durance, France
| | - G. Giruzzi
- Association EURATOM-Commissariat à l’Energie Atomique CEA/DSM/DRFC, CEA/Cadarache, F-13108 St. Paul-lez-Durance, France
| | - D. Molina
- Association EURATOM-Commissariat à l’Energie Atomique CEA/DSM/DRFC, CEA/Cadarache, F-13108 St. Paul-lez-Durance, France
| | - F. Turco
- Association EURATOM-Commissariat à l’Energie Atomique CEA/DSM/DRFC, CEA/Cadarache, F-13108 St. Paul-lez-Durance, France
| | - G. T. A. Huysmans
- Association EURATOM-Commissariat à l’Energie Atomique CEA/DSM/DRFC, CEA/Cadarache, F-13108 St. Paul-lez-Durance, France
| | - P. Maget
- Association EURATOM-Commissariat à l’Energie Atomique CEA/DSM/DRFC, CEA/Cadarache, F-13108 St. Paul-lez-Durance, France
| | - Tore Supra Team
- Association EURATOM-Commissariat à l’Energie Atomique CEA/DSM/DRFC, CEA/Cadarache, F-13108 St. Paul-lez-Durance, France
| | - A. Krämer-Flecken
- Association EURATOM-Institut für Plasmaphysik Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
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Torres-Zárate C, Molina D, Vences A, Espinosa J, Palacios M, Hernández D, Cárdenas R, Shalkow J. Intratumoral expression of cytochrome P450 in pediatric soft tissue sarcomas. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.07.615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Alcasena FJ, Salis M, Ager AA, Arca B, Molina D, Spano D. Assessing landscape scale wildfire exposure for highly valued resources in a Mediterranean area. Environ Manage 2015; 55:1200-1216. [PMID: 25613434 DOI: 10.1007/s00267-015-0448-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 01/02/2015] [Indexed: 06/04/2023]
Abstract
We used a fire simulation modeling approach to assess landscape scale wildfire exposure for highly valued resources and assets (HVR) on a fire-prone area of 680 km(2) located in central Sardinia, Italy. The study area was affected by several wildfires in the last half century: some large and intense fire events threatened wildland urban interfaces as well as other socioeconomic and cultural values. Historical wildfire and weather data were used to inform wildfire simulations, which were based on the minimum travel time algorithm as implemented in FlamMap. We simulated 90,000 fires that replicated recent large fire events in the area spreading under severe weather conditions to generate detailed maps of wildfire likelihood and intensity. Then, we linked fire modeling outputs to a geospatial risk assessment framework focusing on buffer areas around HVR. The results highlighted a large variation in burn probability and fire intensity in the vicinity of HVRs, and allowed us to identify the areas most exposed to wildfires and thus to a higher potential damage. Fire intensity in the HVR buffers was mainly related to fuel types, while wind direction, topographic features, and historically based ignition pattern were the key factors affecting fire likelihood. The methodology presented in this work can have numerous applications, in the study area and elsewhere, particularly to address and inform fire risk management, landscape planning and people safety on the vicinity of HVRs.
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Affiliation(s)
- Fermín J Alcasena
- Department of Agricultural and Forest Engineering, University of Lleida, Avenida da Rovira Roure 191, 25198, Lleida, Spain,
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Zem G, Arvizu S, Ter‐Papyan H, Sadeghi H, Hovsepian G, Hambarsoomian A, Evans A, Chavez C, Tivriktsyan A, Tortorice C, Ohanessian K, Orujyan A, Irikyan C, Molina D, Behshadpour A, Markosian S, Boyadjian Z, Salas N, Basmajian M, Aminian P, Patel K, Haritounian A, Kurginyan A, Sheikhpoor B, Sarkissian L, Tosunyan O, Simidyan A, Mikaelyan H, Bardo M, Simonyan K, Yahya‐Kashani D, Labson K, Asatryan M, Gyurgchyan T, Oppenheimer S. A possible cell surface mechanism for magnesium sulfate's antithrombocytic activity (833.1). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.833.1] [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] [Indexed: 11/11/2022]
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Salazar CL, Cataño JC, Molina D, Sierra P, Correa M. Prevalence of in vitro susceptibility to carbapenems among clinical isolates of the Bacteroides fragilis group from a Colombian tertiary hospital. J Glob Antimicrob Resist 2014; 2:49-51. [PMID: 27873638 DOI: 10.1016/j.jgar.2013.09.002] [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: 05/02/2013] [Revised: 09/20/2013] [Accepted: 09/28/2013] [Indexed: 11/25/2022] Open
Abstract
Clinical isolates of the Bacteroides fragilis group (n=29) were collected from patients attending a tertiary care hospital in Medellin, Colombia, during 2012 and were tested for susceptibility to four carbapenems using the Clinical and Laboratory Standards Institute (CLSI) Etest method. Overall rates of percent susceptibility were as follows: meropenem, 93.1%; imipenem, 100%; ertapenem, 96.6%; and doripenem, 93.1%. This is the first study to show rates of resistance of Bacteroides spp. to carbapenems in Colombia among a species formerly thought to be fully susceptible to this type of antimicrobial.
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Affiliation(s)
- C L Salazar
- Clinically Significant Anaerobic and Aerobic Bacteria Research Group (GIBAA), University of Antioquia Microbiology School, Medellin, Colombia
| | - J C Cataño
- Clinically Significant Anaerobic and Aerobic Bacteria Research Group (GIBAA), University of Antioquia Microbiology School, Medellin, Colombia; Infectious Diseases Section, Internal Medicine Department, University of Antioquia Medical School, Medellin, Colombia.
| | - D Molina
- Clinically Significant Anaerobic and Aerobic Bacteria Research Group (GIBAA), University of Antioquia Microbiology School, Medellin, Colombia
| | - P Sierra
- Microbiology MD, IPS Universitaria Clínica León XIII, University of Antioquia Medical School, Medellin, Colombia
| | - M Correa
- Molecular Microbiology Group, University of Antioquia Microbiology School, Medellin, Colombia
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Kanter J, Beltran S, Molina D, Vallecillo J, Sancho A, Gavela E, Avila A, Molina P, Gorriz JL, Pallardo L. Urinary neutrophil gelatinase-associated lipocalin after kidney transplantation: is it a good biomarker to assess delayed graft function? Transplant Proc 2013; 45:1368-70. [PMID: 23726574 DOI: 10.1016/j.transproceed.2013.01.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Accepted: 01/15/2013] [Indexed: 10/26/2022]
Abstract
Delayed graft function (DGF) is a common complication after transplantation. Its incidence is increased among patients receiving a graft from an expanded-criteria donor. Urinary neutrophil gelatinase-associated lipocalin (uNGAL), an acute kidney injury marker, could in the first days after transplantation be an early marker of DGF. We collected urine samples from 38 renal transplant recipients on days 1, 3, 6, and 10 post-transplantation, and months 1 and 6 creatinine to determine uNGAL, serum creatinine, Cystatin C, and albumin/creatinine ratio. We divided the patients into 2 groups, based on whether they developed DGF. We observed that mean uNGAL concentrations, Cystatin C, serum creatinine, and albumin/creatinine ratio were significantly lower in the non-DGF cohort on all measured days. uNGAL at day 3 showed a positive correlation with serum creatinine at day 10 (R = 0.58; P < .00) and day 30 (R = 0.57; P = .016) as well as with the length of hospital stay (r = 0.47; P < .00). Receiver operating characteristic analyses performed to assess the potential of uNGAL to predict DGF showed an area under the curve for day 3 of uNGAL of 0.917 (confidence interval [CI], 0.79-1.00; P = .00), with an optimal cutoff level of 124 ng/mL, sensitivity of 80% (CI, 62%-97%), and specificity of 83% (62%-104%; P = .001). In the first days after transplantation, uNGAL could be an early marker of DGF, providing additional information to standard biomarkers and potentially helping clinicians to take early measures to mitigate DGF.
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Affiliation(s)
- J Kanter
- Hospital Dr Peset, Nephrology, Valencia, Spain.
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21
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Abstract
BACKGROUND A cannulated lag screw inserted through the medial cuneiform into the base of the second metatarsal is often utilized to reduce the diastasis and aid healing of Lisfranc injuries. Also procedures such as a midfoot or a Lapidus arthrodesis require adequate implant-bone purchase in the medial cuneiform. The medial cuneiform contains cancellous bone of varying density. Knowledge of density variation may be helpful for implant usage and manufacturing of area specific implants. METHODS In 60 randomly selected patients, mean computed tomography (CT) intensity in Hounsfield units was measured at 12 sampled locations within the medial cuneiform and served as a proxy for bone density. The patients' age, gender, and race were recorded. An analysis of variance (ANOVA) assessed the effect of age, gender, race, and sample site on bone density. Statistical testing assumed 95% level of confidence. RESULTS ANOVA showed age, gender, and sample site had significant effects (P < .001) on bone density, though race had no significant effect (P = .28). The distal-dorsal-lateral (DDL) site was significantly denser than all other sites (P < .001) except the middle-dorsal-lateral (MDL) (P = .53). The proximal-plantar-lateral (PPL) site was significantly less dense than all other sites (P < .001) except the middle-plantar-lateral/medial and the proximal-plantar-medial sites (P < .14). A general trend of density increasing in the distal and dorsal directions was evident, and within the dorsal sites there was a trend of increasing density in the lateral direction. CONCLUSION This is the first study to date to measure density of the medial cuneiform using living subjects. The sample size of 60 patients was also the largest of any study measuring density of this bone. We conclude that the densest area of the medial cuneiform is the most anterior, dorsal, and lateral portion. CLINICAL RELEVANCE The findings of this study may indicate the most optimal area for implant purchase in the medial cuneiform when reducing the diastasis between the base of the second metatarsal and medial cuneiform and for stabilization of the medial column.
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Abstract
BACKGROUND A recent review of technical editing of research suggests that over one third of references cited in articles in medical journals have some inaccuracies and one fifth of quotations to references in these articles are not accurate. METHODS Two hundred and forty-nine citation references and 408 quotes from 25 articles published in 5 orthopaedic journals were randomly selected to determine referencing accuracy. The presence of citation errors was examined by 1 of the authors while the presence of quotation errors was determined by 2 of the authors. Full copies of articles as well as the references were obtained to compare the accuracies. RESULTS The total citation error rate was 41% (103 out of 249 references), and the total quotation error rate was 20% (80 out of 408 quotes) for the 5 orthopaedic journals. CONCLUSION Citation and quotation errors were still relatively common in orthopaedic journals. While we did not identify any factors associated with citation and quotation errors, the use of technical editing may reduce the amount of citation errors. CLINICAL RELEVANCE Readers and authors should be aware that many citations of studies are inaccurate and one should review the original source if it is to be used in another publication or to guide clinical treatment.
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Affiliation(s)
- Ma Luo
- University of Texas Medical Branch, Galveston, TX 77555-0165, USA
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Abstract
BACKGROUND There are inconsistencies in the descriptive anatomy of the Lisfranc ligament. No information is available on orientation of fibers or presence of bundles, nor are there 3-dimensional anatomic data on the ligaments or their attachments. This study assessed the 3-dimensional anatomy of the Lisfranc ligament and its attachment sites. METHODS A total of 37 cadaver feet were dissected to expose the ligament attachments at the Lisfranc joint. The Lisfranc ligament and plantar ligament attachments were outlined separately and then removed with the attachment outlines preserved. A 3-dimensional digitizer was used to digitize bony and articular surfaces, as well as ligament attachment sites, at approximately 1 mm intervals; the positional accuracy was 0.23 mm. The surface areas of the entire bone, articular regions, and Lisfranc and plantar ligament attachment regions were determined and anatomic details were noted. RESULTS The Lisfranc ligament had a single bundle in 73% of the specimens and 2 bundles in 27%. Both variations had a single attachment to the second metatarsal (M2; mean attachment surface area, 135 mm(2)). The single-bundle variation attached to the medial cuneiform (C1; mean attachment surface area, 140 mm(2)). The plantar ligament, C1-M2-M3, attached to the anterior plantar surface of the lateral aspect of C1 (mean attachment surface, 64 mm(2)) and had attachment sites at the bases of M2 and M3. Its fibers ran anteriorly and inferiorly, with attachments to the proximal inferomedial aspect of M2 (mean attachment surface, 63 mm(2)) and fibers extending to a smaller attachment at the plantar aspect of M3 (mean attachment surface area, 26 mm(2)). CONCLUSION The Lisfranc ligament is variable in anatomy and can have a single- or double-bundle arrangement. Its area of attachment is larger than that of the plantar ligament. CLINICAL RELEVANCE Anatomic descriptions of location, dimensions, and variability in the position and surface area of the ligament attachment sites and of orientation of the bundles provide information for future attempts at repair or reconstruction of the Lisfranc ligament.
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Elbeze D, Guimarães-Filho Z, Molina D, Ségui JL, Benkadda S, Dubuit N, Garbet X, Sabot R. Study of high frequency MHD modes from ECE radiometer in Tore Supra. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20123203012] [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: 11/14/2022] Open
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Necchi S, Molina D, Turri S, Rossetto F, Rietjens M, Pennati G. Failure of silicone gel breast implants: is the mechanical weakening due to shell swelling a significant cause of prostheses rupture? J Mech Behav Biomed Mater 2011; 4:2002-8. [PMID: 22098899 DOI: 10.1016/j.jmbbm.2011.06.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Revised: 06/23/2011] [Accepted: 06/25/2011] [Indexed: 10/18/2022]
Abstract
Silicone gel-filled breast implants nowadays are commonly used in breast surgery. Despite the improvements carried out during the years in the device design and manufacturing technologies, the long-term reliability of such prostheses is still doubted and the phenomena involved in the prostheses failure not yet clearly defined. This study investigates rupture causes by analysing the mechanical properties of failed and intact implants in the recent generation of silicon gel breast implants. The main scope is to assess whether mechanical weakness of the shells should be considered as a major cause of breast implant rupture or, on the contrary, the prosthesis shell damage is likely due to other random factors. Some tests were performed on the shells of a wide number of explanted prostheses, to evaluate the mechanical properties as a function of prostheses status at explantation (intact/ruptured) and variable degree of swelling. A weakening of the shell mechanical properties, so as a significant difference in the ultimate strength and stiffness of intact versus ruptured prostheses, was found. This attenuation of the properties may be justified as a consequence of the shell swelling phenomenon during implantation and has to be considered as a significant mechanism for silicone gel breast implant failure.
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Affiliation(s)
- S Necchi
- Laboratory of Biological Structure Mechanics, Department of Structural Engineering, Politecnico di Milano, Piazza Leonardo da Vinci, 32-20133 Milan, Italy
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Clairet F, Heuraux S, Bottereau C, Molina D, Ducobu L, Leroux F, Barbuti A. Fast sweeping reflectometry upgrade on Tore Supra. Rev Sci Instrum 2010; 81:10D903. [PMID: 21033935 DOI: 10.1063/1.3460624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In order to study the temporal dynamics of turbulence, the sweep time of our reflectometry has been shortened from 20 to 2 μs with 1 μs dead time. Detailed technical aspects of the upgrade are given, namely, about the stability of the ramp generation, the detection setup, and the fast acquisition module. A review of studies (velocity measurement of the turbulence, modifications of the wavenumber spectrum, radial mapping of correlation time, etc.) offered by such improvements is presented.
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Affiliation(s)
- F Clairet
- CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France.
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Tobon A, Agudelo C, Molina D, Marin J, Restrepo C, Restrepo A. Coinfection of tuberculososis and histoplasmosis in HIV patients from Medellin, Colombia. Int J Infect Dis 2010. [DOI: 10.1016/j.ijid.2010.02.525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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28
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Macor A, Goniche M, Artaud JF, Decker J, Elbeze D, Garbet X, Giruzzi G, Hoang GT, Maget P, Mazon D, Molina D, Nguyen C, Peysson Y, Sabot R, Ségui JL. Redistribution of suprathermal electrons due to fishbone frequency jumps. Phys Rev Lett 2009; 102:155005. [PMID: 19518643 DOI: 10.1103/physrevlett.102.155005] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2008] [Revised: 11/12/2008] [Indexed: 05/27/2023]
Abstract
MHD instabilities driven by fast electrons identified as fishbonelike modes have been detected on Tore Supra during lower hybrid current drive discharges. Direct experimental evidence is reported of a novel feature: the regular redistribution of suprathermal electrons toward external tokamak regions which are correlated to periodic mode frequency jumps. Sharp drops of the electron temperature time trace are factually linked to the cyclical deterioration of the fast electron confinement.
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Affiliation(s)
- A Macor
- CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France
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Lennholm M, Eriksson LG, Turco F, Bouquey F, Darbos C, Dumont R, Giruzzi G, Jung M, Lambert R, Magne R, Molina D, Moreau P, Rimini F, Segui JL, Song S, Traisnel E. Demonstration of effective control of fast-ion-stabilized sawteeth by electron-cyclotron current drive. Phys Rev Lett 2009; 102:115004. [PMID: 19392209 DOI: 10.1103/physrevlett.102.115004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Indexed: 05/27/2023]
Abstract
In a tokamak plasma, sawtooth oscillations in the central temperature, caused by a magnetohydrodynamic instability, can be partially stabilized by fast ions. The resulting less frequent sawtooth crashes can trigger unwanted magnetohydrodynamic activity. This Letter reports on experiments showing that modest electron-cyclotron current drive power, with the deposition positioned by feedback control of the injection angle, can reliably shorten the sawtooth period in the presence of ions with energies >or=0.5 MeV. Certain surprising elements of the results are evaluated qualitatively in terms of existing theory.
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Affiliation(s)
- M Lennholm
- Association EURATOM-CEA, DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
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Sánchez AM, Lozano M, García-Martínez C, Molina D, Herrera F. Real-parameter crossover operators with multiple descendents: An experimental study. INT J INTELL SYST 2008. [DOI: 10.1002/int.20258] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Molina D, Levi M, Turri S, Penso M. Self-Assembly of Methacrylic Nanostructured Copolymers Containing Polyhedral Oligomeric Silsesquioxanes. e-Polymers 2007. [DOI: 10.1515/epoly.2007.7.1.113] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractTwo hybrid copolymer series obtained by free-radical copolymerization of methacrylcyclohexyl Polyhedral oligomeric silsesquioxane (POSS) with butyl methacrylate or 2-ethylhexylmethacrylate were characterized by 1H-NMR spectroscopy, gel permeation chromatography (GPC), X-rays Diffraction (XRD), differential scanning calorimetry (DSC) and thermo-gravimetric analysis (TGA). Reactivity ratios were calculated by low yield composition data suggesting the formation of random copolymers with low probability of poly-POSS sequences. XRD studies showed the crystallization behaviour of the inorganic phase independently on the POSS content; however sample processing by solvent casting effectively hindered the copolymer self-assembling ability. DSC suggests the formation of polyphasic structures with Tg increasing with POSS content, and with endothermal peaks occurring at higher temperature. Finally TGA shows an improved thermal stability of hybrid copolymers with char yield correlated to the level of inorganic phase.
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Affiliation(s)
- D. Molina
- 1Dipartimento di Chimica, Materiali e Ingegneria Chimica “G. Natta”, Politecnico di Milano, Piazza L. da Vinci 32, 20133, Milano, Italy
| | - M. Levi
- 1Dipartimento di Chimica, Materiali e Ingegneria Chimica “G. Natta”, Politecnico di Milano, Piazza L. da Vinci 32, 20133, Milano, Italy
| | - S. Turri
- 1Dipartimento di Chimica, Materiali e Ingegneria Chimica “G. Natta”, Politecnico di Milano, Piazza L. da Vinci 32, 20133, Milano, Italy
| | - M. Penso
- 2Istituto di Scienze e Tecnologie Molecolari, CNR, Via Golgi 19, 20133, Milano, Italy
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Rivera T, Olvera L, Martínez A, Molina D, Azorín J, Barrera M, Soto A, Sosa R, Furetta C. Thermoluminescence properties of copper doped zirconium oxide for UVR dosimetry. RADIAT MEAS 2007. [DOI: 10.1016/j.radmeas.2007.01.063] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kirkpatrick W, Najvar L, Bocanegra R, Vallor A, Olivo M, Molina D, Graybill J, Patterson T. P1785 Efficacy of voriconazole versus anidulafungin alone and in combination in a guinea pig model of invasive pulmonary aspergillosis. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)71624-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hefner KE, Butler R, Ravindra A, Ahmad Z, Molina D, Turner CP. Dipyridamole promotes changes in calbindin-D28k and tyrosine hydroxylase expression in neonatal rats. Neonatology 2007; 91:222-32. [PMID: 17568153 DOI: 10.1159/000098169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2006] [Accepted: 08/28/2006] [Indexed: 11/19/2022]
Abstract
BACKGROUND Perinatal hypoxia alters the concentration of many neurochemicals in the brain, including adenosine, and promotes central nervous system (CNS) disorders in human infants such as periventricular leukomalacia or encephalopathy. OBJECTIVE Using the postnatal rat as a model of perinatal human development, we examined the effects of sustained increases in brain adenosine on CNS regions thought to be involved with both planning and execution of motor activity. METHODS To simulate hypoxia-induced changes in adenosine, Sprague-Dawley rats were injected twice daily from postnatal day (P) 3 to P14, with the adenosine uptake inhibitor dipyridamole (DIP) or the A(1) adenosine receptor agonist N(6)-cyclopentyladenosine (CPA). Vehicle-injected animals served as controls. Immunohistochemical and morphological analyses were then performed to examine the expression of calbindin D-28k (CB) and the thickness of the external granule cell layer (eGL) in the cerebellum. Additionally tyrosine hydroxylase (TH) expression in the caudate putamen and ventricular size were also examined. RESULTS In the cerebellum, both DIP and CPA reduced the number of CB-positive Purkinje cells as well as decreased the thickness of the eGL compared to vehicle. In the caudate putamen we found that DIP but not CPA decreased TH expression when compared to vehicle. Neither agent significantly altered ventricular size when compared to vehicle. CONCLUSIONS These observations suggest that elevations in brain adenosine, which can occur following hypoxia, leads to both neurochemical and cellular changes in regions of the brain which control the planning and execution of motor activity. Thus, therapeutic strategies that target brain regions most sensitive to adenosine may prevent or control at least some of the CNS damage observed following perinatal hypoxia.
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Affiliation(s)
- K E Hefner
- Department of Neurobiology and Anatomy, Wake Forest University School of Medicine, Winston-Salem, NC 27157-1010, USA
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López Bernal F, Iglesias López A, Molina D, Pareja Ciuró F, García Moreno J, Alamo Martínez JM, Candau Pérez A, García González I, Gómez Bravo MA, Serrano Díez-Canedo J, Peiró J, Bernardos Rodríguez A. [Hepatic arterial pseudoaneurysm as a complication of percutaneous transhepatic biliary drainage]. Rev Esp Enferm Dig 2006; 98:706-7. [PMID: 17092207 DOI: 10.4321/s1130-01082006000900014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
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Velazquez-Guadarrama N, Madrigal-Bujaidar E, Molina D, Chamorro G. Genotoxic evaluation of sodium fluoride and sodium perborate in mouse bone marrow cells. Bull Environ Contam Toxicol 2005; 74:566-72. [PMID: 15903192 DOI: 10.1007/s00128-005-0621-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Affiliation(s)
- N Velazquez-Guadarrama
- Laboratory of Genetics, Escuela Nacional de Ciencias Biológicas, I.P.N. Prol. de Carpio y Plan de Ayala, Sto. Tomás, CP 11340 México D.F., Mexico
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Almarza NG, Lomba E, Molina D. Determination of effective pair interactions from the structure factor. Phys Rev E Stat Nonlin Soft Matter Phys 2004; 70:021203. [PMID: 15447481 DOI: 10.1103/physreve.70.021203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2004] [Indexed: 05/24/2023]
Abstract
In this work we present an efficient procedure to evaluate effective pair potentials, compatible with "experimental" structure factors, using a Monte Carlo simulation scheme. The procedure does not require the use of inverse Fourier transforms and is robust and rapidly convergent. As a test case the structure factor of liquid Selenium obtained from a Tight-Binding Molecular Dynamics simulation is inverted to obtain an effective pair potential and, as a by-product, the pair distribution function. The inversion procedure yields a pair structure in perfect agreement with the original molecular dynamics calculations and the analysis of the triplet structure and the dynamics also illustrates the limitations of the use of pair potentials in the description of liquids with strongly directional bonding, such as the covalent liquid Selenium.
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Affiliation(s)
- N G Almarza
- Instituto de Química Física Rocasolano (CSIC), C/Serrano 119, E-28006 Madrid, Spain
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Henao Martinez JA, Pinilla JA, Poveda JC, Molina D, Baldrich C. Structural characterization of dibenzothiophene 5,5-dioxide by X-ray powder diffraction. Acta Crystallogr A 2002. [DOI: 10.1107/s0108767302095685] [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: 11/10/2022] Open
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39
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Paniagua-Pérez R, Madrigal-Bujaidar E, Reyes CS, Pérez GJ, Velasco MO, Molina D. Sister chromatid exchanges produced by imipramine and desipramine in mouse bone marrow cells treated in vivo. Toxicol Lett 2002; 132:123-9. [PMID: 12044546 DOI: 10.1016/s0378-4274(02)00057-7] [Citation(s) in RCA: 13] [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: 11/30/2022]
Abstract
Imipramine and desipramine are two widely used tricyclic antidepressants which have shown conflicting results in regard to their in vitro genotoxic evaluation. The aim of this investigation was to determine the capacity of these compounds to induce in vivo sister-chromatid exchanges (SCEs) in mouse bone marrow cells. For each compound, the animals were organized in five groups constituted by five individuals. They were intraperitoneally (ip) administered with the test substances as follows: a negative control group treated with 0.4 ml of distilled water, a positive control group administered with cyclophosphamide (70 mg/kg), three groups treated with imipramine (7, 20 and 60 mg/kg), and three other groups treated with desipramine (2, 20 and 60 mg/kg). The general procedure included the subcutaneous implantation to each mouse of a 5-bromodesoxyuridine tablet (45 mg), and 1 h later, the administration of the chemicals involved. Twenty-one hours after the tablet implantation, the mice received colchicine, and 3 h later their femoral bone marrow was obtained in KCL, fixed, and stained with the Hoechst-Giemsa method. The results showed that both compounds were SCE inducers, starting from the second tested dose. The response of these compounds was dose-dependent, and showed that the highest tested dose increased about four times the SCE control level. The cellular proliferation kinetics was not affected by the chemicals, and the mitotic indexes were slightly diminished with the highest dose. These results indicate an in vivo genotoxic potential for both chemicals, and suggest that it is pertinent to follow their evaluation in other models.
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Affiliation(s)
- R Paniagua-Pérez
- Centro Nacional de Rehabilitación S.S., Escuela Nacional de Ciencias Biológicas, I.P.N. Carpio y Plan de Ayala, Sto Tomas, cp 11340, Mexico D.F., Mexico
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Rodríguez MM, Bisset JA, Molina D, Díaz C, Soca LA. [Adaptation of microtitration plate methods for quantification of the activity of esterases and glutathione-s-transferase in Aedes aegypti]. Rev Cubana Med Trop 2001; 53:32-6. [PMID: 11826535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
The detection techniques for the activity of non-specific esterases and glutathione-s-transferase in Culex quinquefasciatus were modified to detect such enzymes in Aedes aegypti(L). The optimal concentration values of substrate (saturating concentration) and the optimum reading time for reaction were determined for each enzyme by using 4 Aedes aegypti strains: one from Cuba 2 from Venezuela and one susceptible reference strain. The frequency of non-specific esterases turned out to be 0.76 in MIRANDA 0.42 in ARAGUA and 1 in SANTIAGO DE CUBA in which the highest frequency value of this mechanisms was reached. The frequency of glutathione-s-transferase mechanism was 0.45 in ARAGUA 0.043 in MIRANDA and 1 in SANTIAGO DE CUBA. For the first time in Cuba a set of biochemical techniques was available for detecting the resistance mechanisms of Aedes aegypti which made it possible to create sound foundations for the easy rapid detection of the resistance of this species the main dengue vector in the Americas.
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Bisset JA, Rodríguez MM, Molina D, Díaz C, Soca LA. [High esterases as mechanism of resistance to organophosphate insecticides in Aedes aegypti strains]. Rev Cubana Med Trop 2001; 53:37-43. [PMID: 11826536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Five strains of Aedes aegypti L. one from Cuba and 4 from Venezuela were evaluated to determine their resistance to organophosphate insecticides (temephos, chlorpiriphos and pirimiphos methyl). In the Venezuelan strains only APURE showed resistance to temephos. In TACHIRA and MIRANDA moderate resistance values were noted (FR50 5 to 10x) for chlorpiriphos and high levels of resistance (FR > 10x) to this insecticide were found in ARAGUA. All the Venezuelan strains showed high levels of resistance to pirimiphos methyl. The Cuban strain from Santiago de Cuba revealed moderate resistance to temephos and pirimiphos methyl, but high resistance to chlorpiriphos. The results of the biochemical tests proved the presence of esterase and glutathione-s-transferase at high frequency in almost every strain. By the polyacrilamide gel electrophoresis, a strongly stained band was observed in all the strains with a Rf value of 0.779; it was named esterase A4 and was not seen in the susceptible reference strain. The meaning of this esterase in the resistance to organophosphate insecticides is yet to be determined. Resistance to these insecticides in Aedes aegypti is a serious problem for the control of this species therefore integrated management strategies were proposed to prevent or delay the appearance of this species in Cuba and Venezuela.
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Madrigal-Bujaidar E, Díaz Barriga S, Cassani M, Molina D, Ponce G. In vivo and in vitro induction of sister-chromatid exchanges by nordihydroguaiaretic acid. Mutat Res 1998; 412:139-44. [PMID: 9539967 DOI: 10.1016/s1383-5718(97)00195-2] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nordihydroguaiaretic acid (NDGA) is a phenolic lignan previously used as an antioxidant in commercial products, and with a number of properties potentially useful to man. As its genotoxic capacity has been poorly evaluated, in this investigation we determined its effect on the production of sister-chromatid exchanges (SCEs), and on the level of mitotic index (MI) in cultured human lymphocytes and in mouse bone marrow cells in vivo. The proliferative index (PI), and the average generation time (AGT) were also determined for human lymphocytes and in mouse bone marrow cells respectively. The in vitro study was made in two donors using NDGA doses of 1.1, 3.6, 6.7, 13.5, and 27.0 microM; and for the in vivo study the tested doses were 8.8, 17.6, 35.3, and 70.7 mg/kg of body weight. The results concerning SCE induction in human lymphocytes showed a dose-dependent response with a maximum mean increase of 5.52 SCE in relation to the control level, and with respect to MI and PI a decrement of more than 50% and a cell cycle delay was detected only with the high dose. In the study with bone marrow cells, a statistically significant difference was determined with the high two doses (an increase of 1.06 SCEs with 70.7 mg/kg in relation to the control level). The MI decreased only with the high dose and no modification was observed with respect to AGT. In conclusion, in both used models the study demonstrated that NDGA produced genotoxic and cytotoxic effects.
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Affiliation(s)
- E Madrigal-Bujaidar
- Laboratorio de Genética, Escuela Nacional de Ciencias Biológicas, IPN, México
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Bruno AM, Lo Balbo A, Asis S, Molina D, Conti G, Gaozza CH. DNA interaction and electrochemical properties of bis-1-aminomethylnaphthalenes and related compounds. A correlation with their antineoplastic activity. Boll Chim Farm 1996; 135:374-7. [PMID: 8942064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Bis-1-aminomethylnaphthalenes constitute a new type of molecule with antineoplastic activity. As a first approach to determine the action mechanism, the interaction degree of these compounds and some less active analogous, with calf thymus DNA, by UV spectrophotometry, and the redox performance by cyclic voltammetry was correlated with their activity on neoplastic cell lines. It suggests that the most active members interact closely with DNA but do not show any redox process at biological potentials.
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Affiliation(s)
- A M Bruno
- Departamento de Química Orgánica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina
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Abstract
Eighteen patients with pigmented longitudinal bands of the nail were evaluated. The following clinical data were obtained: age, gender, and race, duration of the pigmented bands, description and location of the lesion, history of any clinical changes; other nail changes; and family and past history. Nail matrix and/or nail bed biopsy were performed in all cases. The histopathologic findings of 18 patients with longitudinal melanonychia showed hyperpigmentation of the epidermis with no apparent increase in the number of melanocytes in 10 cases. One case showed melanoma in situ; another showed keratinocytic proliferation with focal atypia. Three cases showed subungual hemorrhage. The cause of solitary pigmented bands is often not readily apparent, making the clinical diagnosis challenging. Melanotic macule of the nail matrix, consisting of increased pigmentation of the epidermis with no apparent increased in the number of melanocytes, seems to be the most common cause. When the cause of longitudinal melanonychia is not clinically apparent, biopsy of the nail matrix and the nail bed should help to establish it.
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Affiliation(s)
- D Molina
- Department of Dermatology, University of Puerto Rico School of Medicine, San Juan, Puerto Rico 00936-5067
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Cardia E, Molina D, Abbate F, Mastroeni P, Stassi G, Germanà GP, Germanò A. Morphological modifications of the choroid plexus in a rodent model of acute ventriculitis induced by gram-negative liquoral sepsis. Possible implications in the pathophysiology of hypersecretory hydrocephalus. Childs Nerv Syst 1995; 11:511-6. [PMID: 8529217 DOI: 10.1007/bf00822840] [Citation(s) in RCA: 17] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Gram-negative bacterial infections of the central nervous system are generally associated with high morbidity and mortality rates. In patients with ventriculitis induced by gram-negative liquoral sepsis, a reduction in cerebrospinal fluid formation has been reported, suggesting that gram-negative ventriculitis is able per se to alter the normal functioning of the choroid plexus. The aim of the present study was to analyse, for the first time in the rat, the effects of acute ventriculitis on the ultrastructure of the choroid plexus. A simple and inexpensive experimental model of acute ventriculitis was developed: we injected into the cisterna magna of rats 10(3) CFU of live Escherichia coli, inducing septic ventriculitis without major neurological deficits. Histological examinations of rodent choroid plexus 24 h after the injection revealed patches of altered epithelium, with swollen and vacuolated ependymal cells associated with leukocyte infiltration. Electron microscopy demonstrated a reduced number of microvilli and flattening of the epithelial surface. These results (a) indicate that gram-negative septic ventriculitis is able to induce visible ultrastructural alterations of the choroid plexus which (b) are consistent with a picture of marked reduction of the functioning epithelial choroid plexus surface, and (c) highlight the potential usefulness of our rodent acute ventriculitis model for developing treatment modalities.
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Affiliation(s)
- E Cardia
- Section of Pediatric Neurosurgery, Policlinico Universitario, University of Messina, Italy
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Iacopino DG, Zaccone C, Molina D, Todaro C, Tomasello F, Cardia E. Intraoperative monitoring of cerebral blood flow during ventricular shunting in hydrocephalic pediatric patients. Childs Nerv Syst 1995; 11:483-6. [PMID: 7585687 DOI: 10.1007/bf00334971] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Several studies have demonstrated lowered cerebral blood flow (CBF) in patients with hydrocephalus and symptoms of raised intracranial pressure. Ventricular shunting in such cases permits a sudden increase in CBF. The pathophysiology of functional brain deficit secondary to hydrocephalus is little understood. Improvement of the patient's clinical status after drainage of CSF suggests that cerebral dysfunction is not necessarily due to permanent brain damage. In fact, it improves rapidly after ventricular taps. In view of this it would be helpful to monitor cerebral perfusion. The transcranial Doppler (TCD) ultrasonography technique allows real-time monitoring of the intracranial circulation and makes it possible to evaluate the physiopathological correlation between ventricular dilatation and CBF. Continuous monitoring of the middle cerebral artery (MCA) by TCD was performed in three hydrocephalic children (2 months, 14 months, and 8 years old) during a ventricular-peritoneal shunt operative procedure. A TC-2000S device provided by an IMP-F fixed probe was utilized. In all patients, when the lateral ventricle was shunted and the CSF could flow away, a clear and sudden increase of flow velocity above 30% was detected. The pulsatility index (PI) was also pathologically increased in all patients. A gradual normalization of this index was revealed after the shunting procedure. Our experience has to be considered preliminary, but nonetheless, it suggests a clear correlation between hydrocephalic disease and concomitant CBF alterations.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- D G Iacopino
- Sezione di Neurochirurgia Infantile, Policinico Universitario, Messina, Italy
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Abstract
A case of Turcot's syndrome is described in an 8-year-old girl. Turcot's syndrome is a rare hereditary disease in which malignant glioma of the central nervous system is associated with colonic polyposis. The patient initially presented with a left parietal glioblastoma diagnosed by computed tomography (CT), and was subsequently found to have nonfamilial colonic polyposis.
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Affiliation(s)
- E Scribano
- Institute of Radiological Sciences, University of Messina, Italy
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Abstract
An unusual case of infantile myofibromatosis of the solitary type occurring in an intracranial location in a 48-day-old female infant is presented. To our knowledge, there are no other descriptions in the literature of infantile myofibromatosis with exclusively intracranial involvement. The immunohistochemical and electron microscopic findings confirm the myofibroblastic origin of the proliferation.
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Affiliation(s)
- E Cardia
- Sezione di Neurochirurgia Infantile, Policlinico Universitario, Messina, Italy
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Parada M, González Vilas MC, Jolín L, Molina D. [Antibiotic prescription at a health center: a descriptive study]. Aten Primaria 1992; 9:337-8. [PMID: 1600069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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