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Plana E, Gálvez L, Medina P, Navarro S, Miralles M. Estudio de selección de microRNA como posibles biomarcadores de aneurisma de aorta abdominal. ANGIOLOGIA 2018. [DOI: 10.1016/j.angio.2017.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Sakka S, Gaboriau R, Picard J, Redois E, Parchantour G, Sarfaty L, Navarro S, Barreau A. Rob’Autism: How to Change Autistic Social Skills in 20 Weeks. NEW TRENDS IN MEDICAL AND SERVICE ROBOTS 2018. [DOI: 10.1007/978-3-319-59972-4_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Cernicharo J, Agúndez M, Velilla Prieto L, Guélin M, Pardo JR, Kahane C, Marka C, Kramer C, Navarro S, Quintana-Lacaci G, Fonfría JP, Marcelino N, Tercero B, Moreno E, Massalkhi S, Santander-García M, McCarthy MC, Gottlieb CA, Alonso JL. Discovery of methyl silane and confirmation of silyl cyanide in IRC +10216. ASTRONOMY AND ASTROPHYSICS 2017; 606:L5. [PMID: 29142328 PMCID: PMC5683346 DOI: 10.1051/0004-6361/201731672] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report the discovery in space of methyl silane, CH3SiH3, from observations of ten rotational transitions between 80 and 350 GHz (Ju from 4 to 16) with the IRAM 30 m radio telescope. The molecule was observed in the envelope of the C-star IRC +10216. The observed profiles and our models for the expected emission of methyl silane suggest that the it is formed in the inner zones of the circumstellar envelope, 1-40 R*, with an abundance of (0.5-1) × 10-8 relative to H2. We also observed several rotational transitions of silyl cyanide (SiH3CN), confirming its presence in IRC +10216 in particular, and in space in general. Our models indicate that silyl cyanide is also formed in the inner regions of the envelope, around 20 R*, with an abundance relative to H2 of 6×10-10. The possible formation mechanisms of both species are discussed. We also searched for related chemical species but only upper limits could be obtained.
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Keränen SR, Frasson M, García-Granero E, Navarro S, Campos S, Jordá E, Esclapez P, García-Botello S, Flor B, Espí A, Cervantes A. Stratification of patients with locally advanced rectal cancer (LARC) treated with preoperative chemoradiation (ChR), according to Valentini's nomograms (VN) and the Neoadjuvant Rectal Score (NAR). External validation in a single Institution. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Molina P, Torres JV, Navarro S, Llombart-Bosch A. Uterine Carcinoma With Serous and Choriocarcinomatous Differentiation. Int J Surg Pathol 2016. [DOI: 10.1177/106689699600400104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nongestational, nongonadal, and nonteratoma-related choriocarcinoma is an extremely rare entity. The tumor may be pure or associated with carcinoma. Six cases of primary endometrial carcinomas with the presence of syncytiotrophoblastlike beta-human chorionic gonadotropin (beta-HCG)-positive cells have been reported. We describe a case of endometrial carcinoma in a postmenopausal woman, that was composed almost entirely of syncytiotrophoblastic and cytotrophoblastic elements, except in the areas of lymphatic and myometrial invasion, where the neoplasm expressed a papillary serous carcinoma conformation with numerous psammoma bodies. There was not a clear transition between choriocarcinoma and serous carcinoma components. Immunohistochemically, beta-HCG was strongly positive in trophoblastic cells, whereas papillary areas expressed epithelial membrane antigen. These results suggest a double differentiation from malignant stem cells toward an extraembryonal germinal line and a papillary epithelial line. A poor prognosis is expected for this type of neoplasm with extraembryonic differentiation. In the present case, the histologic subtype of uterine papillary serous carcinoma could be an additional risk factor.
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Shotar E, Law-Ye B, Di Maria F, Baronnet-Chauvet F, Zeidan S, Psimaras D, Bielle F, Pecquet C, Navarro S, Rosso C, Cohen F, Chiras J, Sourour N, Clarençon F. P-020 Non-Ischemic Cerebral Enhancing (NICE) Lesions Secondary to Endovascular Aneurysm Therapy: Nickel Allergy or Foreign Body Reaction? Reports of Two Cases and Review of the Literature. J Neurointerv Surg 2016. [DOI: 10.1136/neurintsurg-2016-012589.62] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ibarrola-Villava M, Tarazona N, Gambardella V, Mongort C, Navarro S, Garcia-Botello S, Rosello S, Cervantes A, Ribas G. Deregulation of IGF2, FZD10, MAPK3, SMAD4 and SRF expression in colorectal cancer. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61068-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Cardeñosa ML, Fleitas T, Ibarrola-Villava M, Peña-Chilet M, Mongort C, Navarro L, Navarro S, Ribas G, Cervantes A. Methylation profile of candidate genes in gastric cancer with microsatellite instability using high-throughput MALDI-TOF mass array technology: The role of RUNX3 in cancer progression. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61069-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Jubierre L, Soriano A, Planells-Ferrer L, París-Coderch L, Tenbaum SP, Romero OA, Moubarak RS, Almazán-Moga A, Molist C, Roma J, Navarro S, Noguera R, Sánchez-Céspedes M, Comella JX, Palmer HG, Sánchez de Toledo J, Gallego S, Segura MF. BRG1/SMARCA4 is essential for neuroblastoma cell viability through modulation of cell death and survival pathways. Oncogene 2016; 35:5179-90. [PMID: 26996667 DOI: 10.1038/onc.2016.50] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 10/29/2015] [Accepted: 02/01/2016] [Indexed: 12/16/2022]
Abstract
Neuroblastoma (NB) is a neoplasm of the sympathetic nervous system, and is the most common solid tumor of infancy. NBs are very heterogeneous, with a clinical course ranging from spontaneous regression to resistance to all current forms of treatment. High-risk patients need intense chemotherapy, and only 30-40% will be cured. Relapsed or metastatic tumors acquire multi-drug resistance, raising the need for alternative treatments. Owing to the diverse mechanisms that are responsible of NB chemoresistance, we aimed to target epigenetic factors that control multiple pathways to bypass therapy resistance. We found that the SWI/SNF-related, matrix-associated, actin-dependent regulator of chromatin, subfamily a, member 4 (SMARCA4/BRG1) was consistently upregulated in advanced stages of NB, with high BRG1 levels being indicative of poor outcome. Loss-of-function experiments in vitro and in vivo showed that BRG1 is essential for the proliferation of NB cells. Furthermore, whole-genome transcriptome analysis revealed that BRG1 controls the expression of key elements of oncogenic pathways such as PI3K/AKT and BCL2, which offers a promising new combination therapy for high-risk NB.
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Shepherd C, Navarro S, Wangchuk P, Wilson D, Daly NL, Loukas A. Identifying the immunomodulatory components of helminths. Parasite Immunol 2015; 37:293-303. [PMID: 25854639 DOI: 10.1111/pim.12192] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 03/18/2015] [Indexed: 12/13/2022]
Abstract
Immunomodulatory components of helminths offer great promise as an entirely new class of biologics for the treatment of inflammatory diseases. Here, we discuss the emerging themes in helminth-driven immunomodulation in the context of therapeutic drug discovery. We broadly define the approaches that are currently applied by researchers to identify these helminth molecules, highlighting key areas of potential exploitation that have been mostly neglected thus far, notably small molecules. Finally, we propose that the investigation of immunomodulatory compounds will enable the translation of current and future research efforts into potential treatments for autoimmune and allergic diseases, while at the same time yielding new insights into the molecular interface of host-parasite biology.
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Cardeñosa ML, Fleitas T, Navarro S, Mongort C, Roselló S, Gambardella V, Ribas G, Ibarrola Villava M, Cervantes A. 2393 Role of RUNX3 expression in peritumoral infiammatory infiltrate of gastric carcinoma. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31309-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zanello M, Peyre M, Mokhtari K, Boch A, Capelle L, Carpentier A, Clemenceau S, Karachi C, Navarro S, Nouet A, Reina V, Sanson M, Cornu P, Kalamarides M. Méningiomes multi-récidivants : établissement de critères de réponse thérapeutiques après analyse des cinétiques de croissance et des types de récidive. Neurochirurgie 2014. [DOI: 10.1016/j.neuchi.2014.10.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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38
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Fenoll J, Vela N, Garrido I, Pérez-Lucas G, Navarro S. Abatement of spinosad and indoxacarb residues in pure water by photocatalytic treatment using binary and ternary oxides of Zn and Ti. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:12143-12153. [PMID: 24788933 DOI: 10.1007/s11356-014-2930-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 04/15/2014] [Indexed: 06/03/2023]
Abstract
The photodegradation of indoxacarb, a broad spectrum foliar insecticide and spinosad, a natural insecticide containing two active ingredients, spinosyn A (major component) and spinosyn D (minor component), was studied in aqueous suspensions of binary (ZnO and TiO2) and ternary (Zn2TiO4 and ZnTiO3) oxides under artificial light (300-460 nm) irradiation. As expected, the influence of the semiconductor materials on the degradation of both was very significant in all cases. Photocatalytic experiments showed that the addition of semiconductors in tandem with Na2S2O8 as electron acceptor strongly improved the removal of indoxacarb and spinosad in water compared with the photolytic tests. The reaction rates significantly increased, especially for the ZnO/Na2S2O8 and TiO2/Na2S2O8 systems. The first-order equation (monophasic model) satisfactorily explained the disappearance process, although it offered no explanation for the small concentrations remaining in the process.
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Navarro S, Moleiro V, Molina-Estevez FJ, Lozano ML, Chinchon R, Almarza E, Quintana-Bustamante O, Mostoslavsky G, Maetzig T, Galla M, Heinz N, Schiedlmeier B, Torres Y, Modlich U, Samper E, Río P, Segovia JC, Raya A, Güenechea G, Izpisua-Belmonte JC, Bueren JA. Generation of iPSCs from genetically corrected Brca2 hypomorphic cells: implications in cell reprogramming and stem cell therapy. Stem Cells 2014; 32:436-46. [PMID: 24420904 DOI: 10.1002/stem.1586] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Revised: 09/02/2013] [Accepted: 09/05/2013] [Indexed: 12/24/2022]
Abstract
Fanconi anemia (FA) is a complex genetic disease associated with a defective DNA repair pathway known as the FA pathway. In contrast to many other FA proteins, BRCA2 participates downstream in this pathway and has a critical role in homology-directed recombination (HDR). In our current studies, we have observed an extremely low reprogramming efficiency in cells with a hypomorphic mutation in Brca2 (Brca2(Δ) (27/) (Δ27)), that was associated with increased apoptosis and defective generation of nuclear RAD51 foci during the reprogramming process. Gene complementation facilitated the generation of Brca2(Δ) (27/) (Δ27) induced pluripotent stem cells (iPSCs) with a disease-free FA phenotype. Karyotype analyses and comparative genome hybridization arrays of complemented Brca2(Δ) (27/) (Δ27) iPSCs showed, however, the presence of different genetic alterations in these cells, most of which were not evident in their parental Brca2(Δ) (27/) (Δ27) mouse embryonic fibroblasts. Gene-corrected Brca2(Δ) (27/) (Δ27) iPSCs could be differentiated in vitro toward the hematopoietic lineage, although with a more limited efficacy than WT iPSCs or mouse embryonic stem cells, and did not engraft in irradiated Brca2(Δ) (27/) (Δ27) recipients. Our results are consistent with previous studies proposing that HDR is critical for cell reprogramming and demonstrate that reprogramming defects characteristic of Brca2 mutant cells can be efficiently overcome by gene complementation. Finally, based on analysis of the phenotype, genetic stability, and hematopoietic differentiation potential of gene-corrected Brca2(Δ) (27/) (Δ) (27) iPSCs, achievements and limitations in the application of current reprogramming approaches in hematopoietic stem cell therapy are also discussed.
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Fleitas T, Ibarrola-Villava M, Tarazona N, Cervera R, Mongort C, Navarro S, Rosello S, Ribas G, Pérez-Fidalgo J, Cervantes Ruiperez A. Altered Expression of Cmet and Pik3Ca are Associated with Primary Gastric Cancer. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.52] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Larrieu D, Choquet S, Hoang-Xuan K, Mokhtari K, Navarro S, Martin-Duverneuil N, Leblond V, Charlotte F, Houillier C. P11.04 * MALT CNS LYMPHOMAS: A MONOCENTRIC EXPERIENCE. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Andrés Ramón L, Martos L, Navarro S, España F. C0502: MiRNA Isolation Optimization from Plasma Samples. Thromb Res 2014. [DOI: 10.1016/s0049-3848(14)50247-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Navarro S, Andres Ramon L, Martos L, Bonet E, Dolores Sánchez-Izquierdo M, Ferrando F, Vaya A, Mira Y, Medina P, Bonanad S, España F. C0503: Identification of a Plasma Micrornas Profile Involved in Venous Thrombosis. Thromb Res 2014. [DOI: 10.1016/s0049-3848(14)50271-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Tse C, Paris S, Looten V, Boch AL, Navarro S, Delattre JY, Hainque B. Recherche d’une signature de microRNA circulants comme outil d’aide au diagnostic des tumeurs cérébrales primitives de l’adulte. Rev Neurol (Paris) 2014. [DOI: 10.1016/j.neurol.2014.01.206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Medina P, Navarro S, Bonet E, Martos L, Estellés A, Bertina R, Vos H, España F. Functional Analysis of Two Haplotypes of the Human Endothelial Protein C Receptor Gene. Arterioscler Thromb Vasc Biol 2014; 34:684-90. [DOI: 10.1161/atvbaha.113.302518] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective—
To confirm the effect of the endothelial protein receptor gene (
PROCR
) haplotypes H1 and H3 on venous thromboembolism (VTE), to study their effect on endothelial protein C receptor (EPCR) expression in human umbilical vein endothelial cells, and to investigate the functionality of H1 tagging single-nucleotide polymorphisms in an in vitro model.
Approach and Results—
Protein C (PC), activated PC, and soluble EPCR (sEPCR) levels were measured in 702 patients with VTE and 518 healthy individuals. All subjects were genotyped for
PROCR
H1 and H3. Human umbilical vein endothelial cells isolated from 111 umbilical cords were used to study the relation between
PROCR
haplotypes,
PROCR
mRNA, cellular distribution of EPCR, and rate of PC activation. Finally, the functionality of the intragenic
PROCR
H1 single-nucleotide polymorphisms was analyzed using a luciferase-based method. We confirmed that individuals carrying H1 have reduced VTE risk, increased plasma activated PC levels, and reduced plasma sEPCR levels and that individuals with the H3H3 genotype have an increased VTE risk and increased plasma sEPCR levels. In cultured human umbilical vein endothelial cells, H1 is associated with increased membrane-bound EPCR, increased rate of PC activation, and reduced sEPCR in conditioned medium, but does not significantly influence
PROCR
mRNA levels. In contrast, H3 is associated with reduced membrane-bound EPCR and increased sEPCR in human umbilical vein endothelial cell–conditioned medium, higher levels of a truncated mRNA isoform, and a lower rate of PC activation. Finally, we identified the g.2132T>C single-nucleotide polymorphism in intron 1 as an intragenic H1-specific functional single-nucleotide polymorphism.
Conclusions—
These results support a protective role of
PROCR
H1 against VTE and an increased risk of VTE associated with the H3 haplotype.
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Navarro S, Finkelman S. PROTECTING FOOD PACKAGING MATERIALS BY NATURAL NONTOXIC INSECT REPELLENTS. ACTA ACUST UNITED AC 2014. [DOI: 10.17660/actahortic.2014.1015.15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kohler J, Rubie H, Castel V, Beiske K, Holmes K, Gambini C, Casale F, Munzer C, Erminio G, Parodi S, Navarro S, Marquez C, Peuchmaur M, Cullinane C, Brock P, Valteau-Couanet D, Garaventa A, Haupt R. Treatment of children over the age of one year with unresectable localised neuroblastoma without MYCN amplification: Results of the SIOPEN study. Eur J Cancer 2013; 49:3671-9. [DOI: 10.1016/j.ejca.2013.07.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 06/06/2013] [Accepted: 07/01/2013] [Indexed: 10/26/2022]
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Mora Lopez L, Serra Pla S, Serra-Aracil X, Ballesteros E, Navarro S. Application of a modified Neff classification to patients with uncomplicated diverticulitis. Colorectal Dis 2013; 15:1442-7. [PMID: 24192258 DOI: 10.1111/codi.12449] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Accepted: 04/07/2013] [Indexed: 02/06/2023]
Abstract
AIM Severity of acute diverticulitis (AD) has traditionally been assessed using the Hinchey classification; however, this classification is predominantly a surgical one. The Neff classification provides an alternative classification based on CT findings. The aim of this study was to evaluate a modification of the Neff classification to select patients presenting with early-stage AD to receive outpatient management. METHOD All patients with AD, presenting to a single unit, were prospectively studied. All patients underwent emergency abdominal CT and were assigned a Neff stage, including a modification (mNeff) to Neff Stage I. The Neff stages used were: Stage 0, uncomplicated diverticulitis; Diverticula, thickening of the wall, increased density of the pericolic fat; Stage I, locally complicated (our modification included substages Ia (localized pneumoperitoneum in the form of air bubbles) and Ib (local abscess); Stage II, complicated with pelvic abscess; Stage III, complicated with distant abscess; and Stage IV, complicated with other distant complications. Patients who presented with Stage 0 or Stage Ia were selectively managed as outpatients. Patients with comorbidity or the presence of the systemic inflammatory response syndrome (SIRS) were excluded. RESULTS Between February 2010 and January 2013, 205 patients (mean age 59 years; age range 25-90 years) presented with AD. One-hundred and forty-nine met the radiological criteria for potential outpatient treatment. After applying the exclusion criteria, 68 were eventually assigned to an outpatient programme. Sixty-four (94%) successfully completed the outpatient treatment protocol; four patients were readmitted. CONCLUSION Our mNeff classification allowed selected patients with AD to be successfully managed in an outpatient programme.
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Salim A, Berry C, Ley EJ, Liou DZ, Schulman D, Navarro S, Zheng L, Chan LS. Increasing intent to donate in Hispanic American high school students: results of a prospective observational study. Transplant Proc 2013; 45:13-9. [PMID: 23375270 DOI: 10.1016/j.transproceed.2012.08.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Accepted: 08/30/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND High school students are an important target audience for organ donation education. A novel educational intervention focused on Hispanic American (HA) high school students might improve organ donation rates. METHODS A prospective observational study was conducted in five Los Angeles High Schools with a high percentage of HA students. A "culturally sensitive" educational program was administered to students in grades 9 to 12. Preintervention surveys that assessed awareness, knowledge, perception, and beliefs regarding donation as well as the intent to become an organ donor were compared to postintervention surveys. RESULTS A total of 10,146 high school students participated in the study. After exclusions, 4876 preintervention and 3182 postintervention surveys were analyzed. A significant increase in the overall knowledge, awareness, and beliefs regarding donation was observed after the intervention, as evidenced by a significant increase in the percentage of correct answers on the survey (41% pre- versus 44% postintervention, P < .0001). When specifically examining HA students, there was a significant increase in the intent to donate organs (adjusted odds ratio 1.21, 95% confidence interval: 1.09, 1.34, P = .0003). CONCLUSION This is the first study to demonstrate a significant increase in the intent to donate among HA high school students following an educational intervention.
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Ducray F, Kaloshi G, Houillier C, Idbaih A, Ribba B, Psimaras D, Marie Y, Boisselier B, Alentorn A, Dainese L, Navarro S, Mokhtari K, Sanson M, Hoang-Xuan K, Delattre JY. Ongoing and prolonged response in adult low-grade gliomas treated with radiotherapy. J Neurooncol 2013; 115:261-5. [PMID: 23955572 DOI: 10.1007/s11060-013-1224-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 08/04/2013] [Indexed: 11/25/2022]
Abstract
The aim of the present study was to evaluate the impact of first-line radiotherapy on low-grade gliomas (LGGs) growth kinetics. The mean tumor diameter (MTD) of 39 LGGs was retrospectively measured on serial magnetic resonance images before (n = 16) and after radiotherapy onset (n = 39). After radiotherapy, a decrease of the MTD was observed in 37 patients. Median duration of the MTD decrease was 1.9 years (range 0-8.1 years). According to RANO criteria, the rates of partial and minor responses were 15 and 28 % at the first evaluation after radiotherapy and 36 and 34 % at the time of maximal MTD decrease. The presence of a 1p19q codeletion and the absence of p53 expression were associated with longer durations of MTD decrease (5.3 vs 1 years, p = 0.02 and 2.4 vs 1.8 years, p = 0.05, respectively) while no association was observed between IDH1-R132H expression and duration of MTD decrease. In most patients, MTD decrease after radiotherapy occurred in two phases: an initial phase of rapid MTD decrease followed by a second phase of slower MTD decrease. Patients with a high rate of MTD decrease during the initial phase (>7 mm/year) had both a shorter duration of response (1.9 vs 5.3 years, p = 0.003) and a shorter overall survival (5.5 vs 11.6 years, p = 0.0004). LGGs commonly display a prolonged and ongoing volume decrease after radiotherapy. However, patients who respond rapidly should be carefully monitored because they are at a higher risk of rapid progression.
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