1
|
Orós M, Perejón D, Serna MC, Siscart J, Leon J, Ortega M, Salinas-Roca B. Prevalence and risk factors of gestational diabetes in the health region of Lleida: a retrospective observational cohort study. J Endocrinol Invest 2023; 46:2639-2646. [PMID: 37330946 PMCID: PMC10632204 DOI: 10.1007/s40618-023-02120-5] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/20/2023] [Indexed: 06/20/2023]
Abstract
BACKGROUND Diabetes is a very common metabolic condition during pregnancy. The number of cases increases with age and obesity. The prevalence of pre-gestational diabetes and gestational diabetes (GD) differs between different ethnic groups. OBJECTIVE The aim of the study was to analyse the prevalence of pre-gestational diabetes and GD in the health region of Lleida. We also studied the GD risk factors during pregnancy according to the country of origin of the pregnant woman. METHODS We performed a retrospective observational cohort study among pregnant women between 2012 and 2018 in the health region of Lleida. A multivariate model was performed with the different variables analysed by calculating the regression coefficient and its 95% confidence interval (CI). RESULTS In our sample of 17,177 pregnant women, we observed a prevalence of pre-gestational diabetes and GD of 8.2% and 6.5%, respectively. We found a relationship of gestational diabetes with different factors: age, with 6.8% in 30-34 year-old women and 11.3% in women over 35 (OR 1.78 and 3.29, respectively); overweight, with 8.29% (OR 1.89); and obesity, with 12.9% (OR 3.15). Finally, women from Asia and the Middle East and the Maghreb had a higher risk of diabetes, with 12.2% (OR 2.1) and 9.91% (OR 1.3), respectively, and Sub-Saharan women had a lower risk of it 6.07% (OR 0.71). CONCLUSIONS GD has different risk factors, such as age, overweight, and obesity. Non-related conditions include hypothyroidism, arterial hypertension, and dyslipidaemia. Finally, pregnant women from the Maghreb, and Asia and the Middle East, are at higher risk of developing diabetes during pregnancy; meanwhile, Sub-Saharan origin is protector factor.
Collapse
Affiliation(s)
- M Orós
- Institut d'Investigació en Atenció Primària IDIAP Jordi Gol, Institut Català de la Salut, Lleida, Spain
- Centre de Salut Eixample, Institut Català de la Salut, Lleida, Spain
- Departament de Medicina Familiar, Universitat de Lleida, Lleida, Spain
| | - D Perejón
- Institut d'Investigació en Atenció Primària IDIAP Jordi Gol, Institut Català de la Salut, Lleida, Spain
- Centre de Salut Eixample, Institut Català de la Salut, Lleida, Spain
- Departament de Medicina Familiar, Universitat de Lleida, Lleida, Spain
| | - M C Serna
- Institut d'Investigació en Atenció Primària IDIAP Jordi Gol, Institut Català de la Salut, Lleida, Spain
- Centre de Salut Eixample, Institut Català de la Salut, Lleida, Spain
- Departament de Medicina Familiar, Universitat de Lleida, Lleida, Spain
| | - J Siscart
- Institut d'Investigació en Atenció Primària IDIAP Jordi Gol, Institut Català de la Salut, Lleida, Spain
- Centre de Salut Eixample, Institut Català de la Salut, Lleida, Spain
- Departament de Medicina Familiar, Universitat de Lleida, Lleida, Spain
| | - J Leon
- Departament d'Endocrinologia i Nutrició, Hospital Universitari Arnau de Vilanova, Lleida, Spain
- Grup d'investigació en Immunologia i Metabolisme (GRIM), Institut de Recerca Biomèdica, Lleida, Spain
| | - M Ortega
- Institut d'Investigació en Atenció Primària IDIAP Jordi Gol, Institut Català de la Salut, Lleida, Spain
- Departament de Medicina Familiar, Universitat de Lleida, Lleida, Spain
- Grup de Recerca Terapèutica en Atenció Primària (GRETAPS), Institut Català de la Salut, Lleida, Spain
| | - B Salinas-Roca
- Department of Nursing and Physiotherapy, University of Lleida, Montserrat Roig 2, 25198, Lleida, Spain.
- Global Research On Wellbeing (GRoW) Research Group, Blanquerna School of Health Science, Ramon Llull University, Padilla, 326-332, 08025, Barcelona, Spain.
| |
Collapse
|
2
|
Ortega-Legaspi J, Molina M, Leon J, Cunningham A, Guerraty M, Peyster E, Julien H, McLean R, Goldberg L, Bravo P. Coronary Flow Reserve is an Independent Predictor of Major Adverse Cardiovascular Events in Long Term Heart Transplantation Survivors. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
|
3
|
Leon J, Mata-Ruiz S, Sha P. How Does Nutritional Knowledge of Postpartum Women Participants of the Special Supplemental Nutrition Program for Women Infants and Children (WIC) Program Relate to BMI? J Acad Nutr Diet 2022. [DOI: 10.1016/j.jand.2022.08.103] [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]
|
4
|
Lamping O, Leon J, Raheel M, Matre N, Lilly S, Harfi T. 485 Right Ventricular Function By Cardiac Computed Tomography As A Predictor Of 1-&3-year Survival Post-TAVI. J Cardiovasc Comput Tomogr 2022. [DOI: 10.1016/j.jcct.2022.06.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
5
|
Miranda Ruiz E, Gonzalez A, Samos P, Bellsola M, Sabate A, Leon J, Jerónimo M, Pérez-Solà V, Martin L, Corcoles D. Use of verbal de-escalation in reducing need for mechanical restraint in patients with psychotic disorders during non-voluntary transfers from home to the psychiatric emergency department. Eur Psychiatry 2022. [PMCID: PMC9567735 DOI: 10.1192/j.eurpsy.2022.1509] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Little is known about the need for mechanical restraint during non-voluntary transfers from patient’s homes to the psychiatric emergency department in patients diagnosed with Paranoid Schizophrenia. Although there is no evidence of its efficacy, one of the main tools used for the reduction of mechanical restraints is verbal de-escalation training. Objectives The aim is to describe which symptoms predispose to mechanical restrain in patients with Paranoid Schizophrenia transferred in a non-voluntary manner from home to the psychiatric emergency department, and the effect on reducing mechanical restraints after receiving verbal de-escalation training. Methods All patients with Paranoid Schizophrenia who, after being visited by a home psychiatry team, have required non-voluntary transfer from their homes to the psychiatric emergency department were selected (N = 442). Results Young age, being male, having a poor adherence to treatment, higher scores for de following variables; Excitement, Grandiosity, Suspiciousness, Hostility, Abstract thinking, Motor tension, Uncooperativeness, Poor attention, Lack of insight and Poor impulse control as well as lower scores in motor retardation on the PANSS, are related to a higher frequency of mechanical restrain (P<0,005). Before the verbal de-escalation training, 43.9% of the transferred patients required mechanical restraint, after the training, the need for restraints was reduced to 25.5% (P<0.001). Conclusions Training in verbal de-escalation has allowed an important reduction in mechanical restraints in patients with schizophrenia who have required non-voluntary transfers from home to the psychiatric emergency department. Disclosure No significant relationships.
Collapse
|
6
|
Patel L, Bridgham K, Ciriello J, Almardawi R, Leon J, Hostetter J, Yazbek S, Raghavan P. PET/MR Imaging in Evaluating Treatment Failure of Head and Neck Malignancies: A Neck Imaging Reporting and Data System-Based Study. AJNR Am J Neuroradiol 2022; 43:435-441. [PMID: 35177543 PMCID: PMC8910793 DOI: 10.3174/ajnr.a7427] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 12/19/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE PET/MR imaging is a relatively new hybrid technology that holds great promise for the evaluation of head and neck cancer. The aim of this study was to assess the performance of simultaneous PET/MR imaging versus MR imaging in the evaluation of posttreatment head and neck malignancies, as determined by its ability to predict locoregional recurrence or progression after imaging. MATERIALS AND METHODS The electronic medical records of patients who had posttreatment PET/MR imaging studies were reviewed, and after applying the exclusion criteria, we retrospectively included 46 studies. PET/MR imaging studies were independently reviewed by 2 neuroradiologists, who recorded scores based on the Neck Imaging Reporting and Data System (using CT/PET-CT criteria) for the diagnostic MR imaging sequences alone and the combined PET/MR imaging. Treatment failure was determined with either biopsy pathology or initiation of new treatment. Statistical analyses including univariate association, interobserver agreement, and receiver operating characteristic analysis were performed. RESULTS There was substantial interreader agreement among PET/MR imaging scores (κ = 0.634; 95% CI, 0.605-0.663). PET/MR imaging scores showed a strong association with treatment failure by univariate association analysis, with P < .001 for the primary site, neck lymph nodes, and combined sites. Receiver operating characteristic curves of PET/MR imaging scores versus treatment failure indicated statistically significant diagnostic accuracy (area under curve range, 0.864-0.987; P < .001). CONCLUSIONS Simultaneous PET/MR imaging has excellent discriminatory performance for treatment outcomes of head and neck malignancy when the Neck Imaging Reporting and Data System is applied. PET/MR imaging could play an important role in surveillance imaging for head and neck cancer.
Collapse
Affiliation(s)
- L.D. Patel
- From the Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine Ringgold Standard Institution, Baltimore, Maryland
| | - K. Bridgham
- From the Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine Ringgold Standard Institution, Baltimore, Maryland
| | - J. Ciriello
- From the Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine Ringgold Standard Institution, Baltimore, Maryland
| | - R. Almardawi
- From the Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine Ringgold Standard Institution, Baltimore, Maryland
| | - J. Leon
- From the Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine Ringgold Standard Institution, Baltimore, Maryland
| | - J. Hostetter
- From the Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine Ringgold Standard Institution, Baltimore, Maryland
| | - S. Yazbek
- From the Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine Ringgold Standard Institution, Baltimore, Maryland
| | - P. Raghavan
- From the Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine Ringgold Standard Institution, Baltimore, Maryland
| |
Collapse
|
7
|
Zhao H, Chan VWS, Castellani D, Chan EOT, Ong WLK, Peng Q, Moschini M, Krajewski W, Pradere B, Ng CF, Enikeev D, Vasdev N, Ekin G, Sousa A, Leon J, Guerrero-Ramos F, Tan WS, Kelly J, Shariat SF, Witjes JA, Teoh JYC. 1459 Intravesical Chemohyperthermia Versus Bacillus Calmette-Guerin Instillation for Intermediate- And High-Risk Non-Muscle Invasive Bladder Cancer: A Systematic Review and Meta-Analysis. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Introduction
Traditional intravesical chemotherapy instillations under room temperature post trans-urethral resection (TUR) of non-muscle invasive bladder cancer (NMIBC) have lower efficacies than maintenance BCG installations. Intravesical chemo-hyperthermia (CHT) at higher temperatures is developed to improve the efficacy of chemotherapy instillation. This systematic review aims to compare the use of CHT and BCG instillation post-TUR.
Method
The protocol of this review is registered on PROSPERO(CRD42020223277). A comprehensive literature search was performed on Medline, EMBASE, and Cochrane CENTRAL to identify studies comparing CHT and BCG post-TUR for intermediate- or high-risk NMIBC. Primary outcomes include recurrence-free survival (RFS) and progression-free survival (PFS). Secondary outcomes include adverse events (AE).
Results
From 2,375 identified records, four randomised control trials incorporating 327 patients were included for meta-analysis. The use of CHT was found to be non-inferior to BCG in RFS, PFS and AEs (Grades 1-3) (p > 0.05). Sensitivity analysis, excluding patients with BCG failures, show 24-36 months recurrence rate to be significantly lower in CHT group (RR 0.64, 95% CI 0.42-0.98, p = 0.04) compared to the BCG group. In patients without carcinoma in situ (CIS), RFS is also significantly better in CHT patients (HR 0.52, 95% CI 0.32- 0.85, p < 0.01). Safety profile remains non-inferior to the BCG group in sensitivity analyses. Quality of evidence across all outcomes ranged from moderate to low.
Conclusions
In well-selected patients, intravesical CHT has superior oncological outcomes and non-inferior safety profile when compared to BCG maintenance therapy for patients with intermediate- and high-risk NMIBC. CHT is a possible alternative treatment during BCG shortage.
Collapse
Affiliation(s)
- H Zhao
- The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - V W S Chan
- University of Leeds, Leeds, United Kingdom
| | | | - E O T Chan
- The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - W L K Ong
- Penang General Hospital, Penang, Malaysia
| | - Q Peng
- The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - M Moschini
- Luzerner Kantonsspital, Lucerne, Switzerland
| | | | - B Pradere
- University Hospital of Tours, Tours, France
| | - C F Ng
- The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - D Enikeev
- Sechenov University, Moscow, Russian Federation
| | - N Vasdev
- University of Hertfordshire, Hatfield, United Kingdom
| | - G Ekin
- Urla State Hospital, İzmir, Turkey
| | - A Sousa
- Comarcal Hospital, Monforte, Spain
| | - J Leon
- Comarcal Hospital, Monforte, Spain
| | | | - W S Tan
- University College London, London, United Kingdom
- Royal Free Hospital, London, United Kingdom
| | - J Kelly
- University College London, London, United Kingdom
- Royal Free Hospital, London, United Kingdom
| | - S F Shariat
- Medical University of Vienna, Vienna, Austria
- Weill Cornell Medical College, New York, USA
- University of Texas Southwestern, Dallas, USA
- Charles University, Prague, Czech Republic
- The University of Jordan, Amman, Jordan
| | - J A Witjes
- Radboud University Medical Centre, Nijimegen, Netherlands
| | - J Y C Teoh
- The Chinese University of Hong Kong, Hong Kong, Hong Kong
| |
Collapse
|
8
|
Lamping O, Leon J, Lilly S, Matre N, Harfi T. Feasibility And Accuracy Of Quantitative Assessment Of Right Ventricular Size And Function Using Pre Tavi Computed Tomography Scan Compared To Transthoracic Echocardiography. J Cardiovasc Comput Tomogr 2021. [DOI: 10.1016/j.jcct.2021.06.214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
9
|
Polanco F. A, Dueñas LF, Leon J, Puentes V. New records and update on the geographic distribution of the Bonyeared Assfish, Acanthonus armatus Günther, 1878 (Ophidiidae, Neobythitinae), in the Caribbean region. CheckList 2019. [DOI: 10.15560/15.5.767] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Acanthonus armatus Günther, 1878 is reported for the first time in the southwestern Caribbean region, off Colombia. Remote Operate Vehicle videos and towed camera still photographs captured 13 images of A. armatus between 2215 and 2564 m. These are the first records of the species in the Caribbean continental coast of Colombia, representing a range extension to the southwestern Caribbean region, since previous records are from the northeastern Caribbean. Some photos of the specimens and the current distribution of the species in the Caribbean region are provided and reviewed.
Collapse
|
10
|
Leon J, Zuber J, Amrouche L, Anglicheau D, Divard G, Bertrand D, Olagne J, Delavenne X, Legendre, Sberro-Soussan R. Les nouveaux anticoagulants oraux directs en transplantation rénale : résultats d’une étude pilote. Nephrol Ther 2019. [DOI: 10.1016/j.nephro.2019.07.056] [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: 10/26/2022]
|
11
|
Boudhabhay I, Poillerat V, Torset C, Leon J, Rabant M, Gnemmi V, Frémeaux-Bacchi V, Frimat M, Roumenina L. Insuffisance rénale aiguë et rhabdomyolyse : un rôle clef du complément. Nephrol Ther 2019. [DOI: 10.1016/j.nephro.2019.07.050] [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: 10/26/2022]
|
12
|
Dueñas LF, Cedeño-Posso C, Grajales A, Herrera S, Rodriguez E, Sánchez JA, Leon J, Puentes V. First visual occurrence data for deep-sea cnidarians in the South-western Colombian Caribbean. Biodivers Data J 2019; 7:e33091. [PMID: 31130812 PMCID: PMC6517366 DOI: 10.3897/bdj.7.e33091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 03/07/2019] [Indexed: 12/01/2022] Open
Abstract
Background Attention to the deep-sea environment has increased dramatically in the last decade due to the rising interest in natural resource exploitation. Although Colombia holds a large submerged territory, knowledge of the seabed and its biodiversity beyond 1,000 m depth is very limited. During 2015–2017, Anadarko Colombia Company (ACC) carried out hydrocarbon exploratory activities in the South-western Colombian Caribbean, at depths between 375 m and 2,565 m. New information Capitalising on available data resources from these activities, several cnidarian species were observed in ROV and towed camera surveys. We analysed over nine hours of video and 5,066 still images from these surveys, identifying organisms to the lowest possible taxonomic level. The images and associated data presented here correspond to 108 observations of deep-sea cnidarians, including seven new records for the Colombian Caribbean. Given the paucity of research and funding to explore the deep-sea in Colombia, the present dataset comprises the largest deep-sea Cnidaria imagery inventory to date for the Colombian Caribbean.
Collapse
Affiliation(s)
- Luisa F Dueñas
- Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Biología - Carrera 30 No. 45-03 Edificio 421, Bogotá, D.C., Colombia Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Biología - Carrera 30 No. 45-03 Edificio 421 Bogotá, D.C. Colombia.,Anadarko Colombia Company, Calle 113 No. 7-80 piso 11, Bogotá, D.C., Colombia Anadarko Colombia Company, Calle 113 No. 7-80 piso 11 Bogotá, D.C. Colombia
| | - Cristina Cedeño-Posso
- Instituto de Investigaciones Marinas y Costeras- INVEMAR. Calle 25 No. 2-55 Playa Salguero , Santa Marta, Colombia Instituto de Investigaciones Marinas y Costeras- INVEMAR. Calle 25 No. 2-55 Playa Salguero Santa Marta Colombia
| | - Alejandro Grajales
- Division of Invertebrate Zoology, American Museum of Natural History. Central Park West at 79th Street, New York, NY 10024, United States of America Division of Invertebrate Zoology, American Museum of Natural History. Central Park West at 79th Street New York, NY 10024 United States of America
| | - Santiago Herrera
- Department of Biological Sciences, Lehigh University. 111 Research Dr., Bethlehem, PA 18015, United States of America Department of Biological Sciences, Lehigh University. 111 Research Dr. Bethlehem, PA 18015 United States of America
| | - Estefanía Rodriguez
- Division of Invertebrate Zoology, American Museum of Natural History. Central Park West at 79th Street, New York, NY 10024, United States of America Division of Invertebrate Zoology, American Museum of Natural History. Central Park West at 79th Street New York, NY 10024 United States of America
| | - Juan Armando Sánchez
- Departamento de Ciencias Biológicas, Universidad de los Andes. Carrera 1 No. 18A-12, Bogotá, D.C, Colombia Departamento de Ciencias Biológicas, Universidad de los Andes. Carrera 1 No. 18A-12 Bogotá, D.C Colombia
| | - Jorge Leon
- Anadarko Colombia Company, Calle 113 No. 7-80 piso 11, Bogotá, D.C., Colombia Anadarko Colombia Company, Calle 113 No. 7-80 piso 11 Bogotá, D.C. Colombia
| | - Vladimir Puentes
- Anadarko Colombia Company, Calle 113 No. 7-80 piso 11, Bogotá, D.C., Colombia Anadarko Colombia Company, Calle 113 No. 7-80 piso 11 Bogotá, D.C. Colombia
| |
Collapse
|
13
|
Abstract
e15180 Background: The incidence of colorectal cancer (CRC) in Peru has increased in the last decades. In our population more than 80% of patients are stage I-III. Recurrence is one of the most important factors to consider in the survival of CRC patients. The aim of this study was to identify which factors influence in the recurrence of CRC in our population. Methods: We retrospectively reviewed the electronic medical records of 506 patients with stage I-III CRC from one specialized Peruvian cancer center between 2006 and 2016. Survival analysis (with recurrence as the event to evaluate) was performed with Kaplan Meier curves and Long-rank test. We use a preliminary univariate analysis to do the multivariate analysis with Cox regression. We performed a ROC curve analysis to determine an appropriate cut-off value for the tumor size (≥4.2). Results: In the univariate analysis we found that sidedness, tumor size (cut-off ≥4.2), CEA, lymph node involvement, stage, histological grade, LVI, PNI, and chemotherapy were statistically significant. In the multivariate model, tumor size [HR, 1.462; 95% CI, 1.065-2.217; p<0.05], lymph node involvement [HR, 0.136; 95% CI,0.41-0.447; p<0.001], and stage III [HR, 0.003; 95% CI, 0.263-0.758; p<0.05] retained a significant association and were independent factors with relapse disease. Conclusions: In stage I-III CRC pts it is important to evaluate tumor size, lymph node involvement and clinical stage as they are possible prognostic factors that will help our diagnosis and treatment along with other standard features.
Collapse
Affiliation(s)
| | | | | | - Claudio J. Flores
- Unidad de Investigación Básica y Traslacional, Oncosalud-AUNA, Lima, Peru
| |
Collapse
|
14
|
Leon J, Namuche F, Montenegro PC, Flores CJ. Patterns of metastasis and second primary malignancies (SPM) in colorectal cancer: A perspective from Peru. J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.e15068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e15068 Background: The incidence of colorectal cancer (CRC) in Peru has increased in the last decades. Approximately 20% of patients with CRC already have metastases at diagnosis, and this figure has been stable over the last two decades. The lack of data makes it more difficult to manage our patients. The metastatic setting and patients with second primary malignancies are complicated scenarios. The objective of our study was to explore and describe the metastasis patterns and the second primary malignancies’ frequency in CRC patients. Methods: We retrospectively reviewed the electronic medical records of 609 patients with CRC from one specialized Peruvian cancer center between 2006 and 2016. For the evaluation of the metastasis pattern, we selected 198 patients with metastasis at debut and the patients who had relapse of the disease. Descriptive results for numeric variables were presented as means with standard deviation (SD) or medians with interquartile range (IQR), depending on their distributions; otherwise, we expressed the qualitative variables as numbers with percentages. We evaluated the metastasis pattern according to primary tumour sidedness, age, CEA, histological grade, histological type. A survival analysis was performed with Kaplan Meier method, comparing the curves with Log Rank test for metastasectomy, biological therapy and number of sites with metastatic disease. A multivariate analysis was performed using the Cox regression model with the statistically significant variables found in the univariate analysis. Results: At the time of diagnosis, stage IV disease accounted for 15.3% (93) of all CRC cases. 105 (stage I-III) pts had relapse disease. Regardless of the primary tumor site, the most common site for metastatic spread was the liver (42.9%), lung (12.6%), carcinomatosis (18.2%). Pts who underwent metastasectomy presented a better OS [HR, 0.284; 95% CI, 0.123-0.657; p < 0.05], as well as pts who received biologic therapy [HR, 0.641; 95% CI, 0.416-0.990; p < 0.05] and a greater number of sites with metastatic disease had worst OS [HR, 1.878; 95% CI, 1.181-2.985; p < 0.05] The incidence of SPM following CRC was 48/609 (7.8%), the more frequent localizations were: breast, prostate and lung with 14.6% each, then kidney 10.4%, bladder 8.3%. Conclusions: In mCRC metastasectomy, biological therapy and number of sites with metastatic disease play an important role in OS. The more frequent localizations with SPM were breast, prostate and lung.
Collapse
Affiliation(s)
| | | | | | - Claudio J. Flores
- Unidad de Investigación Básica y Traslacional, Oncosalud-AUNA, Lima, Peru
| |
Collapse
|
15
|
Namuche F, Leon J, Montenegro PC, Flores CJ. Optimizing cut-offs for high neutrophil-to-lymphocyte ratio as poor survival prognostic factor in colorectal cancer. J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.e15111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e15111 Background: The incidence of colorectal cancer (CRC) in Peru has increased in the last decades. Needing to use all the possible tools for an accurate diagnosis and early treatment. Neutrophil-to-lymphocyte ratio (NLR) has been associated as poor prognostic factor in OS and PFS in CRC. There is no data that support this statement in Latin America. It is of a special utility in our country the detection of a simple and reproducible prognostic biomarker that guides the use of more advanced tests. Our objective was to explore the factors associated with OS in the local-locally advanced and metastatic settings. Methods: We retrospectively reviewed the electronic medical records of 609 patients with CRC from one specialized Peruvian cancer center between 2006 and 2016 Descriptive results for numeric variables were presented as means with standard deviation (SD) or medians with interquartile range (IQR), depending on their distributions; otherwise, we expressed the qualitative variables as numbers with percentages. We divided our population into two groups: Local-locally advanced (L-LA) (516 pts) and debut metastatic- recurrence (M-R) (108 pts). We performed a ROC curve analysis to determine an appropriate cut-off value for NLR in both groups (L-LA:NLR ≥3, M-R:NLR ≥5). A univariate survival analysis was performed with Kaplan Meier method, comparing the curves with Log Rank test. A multivariate analysis was performed using the Cox regression model with the statistically significant variables found in the univariate analysis. Results: Pts with high NLR had significantly shorter OS in L-LA [HR, 12.1; 95% CI,5.019-29.211; p < 0.001] M-R [HR, 5.382; 95% CI,2.835-10.217; p < 0.001] than pts with low NLR. In the multivariate model, NLR retained a significant association with OS in both groups. Cox regression demonstrated that in L-LA setting sex, histologic grade and lymph node involvement; and in M-R setting sidedness, histologic grade, LVI and metastasectomy performed were independently risk factors for a shorter OS. Conclusions: High NLR is associated with poor prognosis (with our cut-offs L-LA:NLR ≥3, M-R:NLR ≥5). There are other variables to be considered that affect the OS, as: sex, histologic grade and lymph node involvement, sidedness, histologic grade, LVI and metastasectomy performed.
Collapse
Affiliation(s)
| | | | | | - Claudio J. Flores
- Unidad de Investigación Básica y Traslacional, Oncosalud-AUNA, Lima, Peru
| |
Collapse
|
16
|
Namuche F, Montenegro PC, Leon J, Flores CJ. Toxicity of chemotherapy in patients with colorectal cancer: The role of age in the Latin American setting. J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.e15095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e15095 Background: The incidence of colorectal cancer (CRC) in Peru has increased in the last decades. In our country, the toxicities of systemic treatment have not been analyzed in a large population in the different disease settings. Numerous clinical studies have shown an association between toxicities and age, type of chemotherapy, number of courses, and others. Our objective was to explore the toxicities presented in our population and find if any variables could help us predict these toxicities. Methods: We retrospectively reviewed the electronic medical records of 371 patients with CRC from one specialized Peruvian cancer center between 2006 and 2016. Descriptive results for numeric variables were presented as means with standard deviation (SD) or medians with interquartile range (IQR), depending on their distributions; otherwise, we expressed the qualitative variables as numbers with percentages. The primary outcome measure was if the patient developed toxicity ≥3 assessed with multiple variables: age, sex, tumor location, NLR, PLR, pathological stage group (PSG), type of chemotherapy (CT), liver metastases, metastasectomy performed, albumin level, CEA, nodal involvement, time to CT, number of CT courses. Multivariable analysis in logistic regression model was adjusted for the factors statistically significant in the univariable analysis. Results: A total of 371 patients were included, of which 95 (25.6%) developed a ≥3 grade toxicity. The more frequent toxicity was neuropathy (30.5%). Univariate logistic regression analysis showed that age, albumin level, PSG, time to CT, number of CT courses, type of chemotherapy (CT), tumor location and liver metastases were associated with a ≥3 grade toxicity. Furthermore, multivariate regression analysis demonstrated that stage IV [OR, 0.012; 95% CI, 0.002-0.078; p < 0.001], age ≥70 [OR, 3.475; 95% CI,1.818-6.643; p < 0.001], number of courses [OR, 0.839; 95% CI, 0.763-0.922; p < 0.001] and albumin levels [OR, 0.391; 95% CI,0.257-0.596; p < 0.001]were independently risk factors for ≥3 grade toxicity. Conclusions: Stage IV, age ≥70, a greater number of CT courses and lower albumin levels were independently associated with a ≥3 grade toxicity.
Collapse
|
17
|
Lafita-Navarro M, Liano-Pons J, Varela I, Blanco R, Aresti J, Carroll P, Hurlin P, Eisenman R, Delgado M, Leon J. PO-346 The MYC antagonist MNT beyond MAX interaction. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.376] [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: 11/04/2022] Open
|
18
|
Namuche F, Flores CJ, Leon J, Aguilar A. Prognostic value of neutrophil- (NLR) and platelet-lymphocyte ratio (PLR) in patients with metastatic colorectal cancer (mCRC) with KRAS, BRAF: A Peruvian point of view. J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.e15550] [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: 11/20/2022] Open
Affiliation(s)
| | - Claudio J. Flores
- Unidad de Investigación Básica y Traslacional, Oncosalud-AUNA, Lima, Peru
| | | | | |
Collapse
|
19
|
Namuche F, Flores CJ, Leon J, Aguilar A. Impact of modified Glasgow prognostic score and neutrophil/platelet-lymphocyte ratio on survival metastatic colorectal cancer (mCRC). J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.e15557] [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: 11/20/2022] Open
Affiliation(s)
| | - Claudio J. Flores
- Unidad de Investigación Básica y Traslacional, Oncosalud-AUNA, Lima, Peru
| | | | | |
Collapse
|
20
|
Guerrero-Kommritz J, Cantera J, Puentes V, Leon J. First observations of the bigfin squid Magnapinna sp. in the Colombian Southern Caribbean. Biodivers Data J 2018:e24170. [PMID: 29765263 PMCID: PMC5948231 DOI: 10.3897/bdj.6.e24170] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/25/2018] [Indexed: 12/04/2022] Open
Abstract
Herein, first observations are reported of Magnapinna squids in the Colombian Southern Caribbean. Two specimens were observed by Remote Operated Vehicles (ROV) during exploratory drilling surveys for hydrocarbons at 1,883 and 2,294 m depth. These are the first observations of specimens of Magnapinna in the Southern Caribbean. Resumen La primera observación del calamar Magnapinna sp. en el caribe sur colombiano. Dos especímenes de calamares de aleta grande fueron observados con submarino de operación remota (ROV) durante un proyecto de perforación exploratoria de hidrocaburos a profundidades de 1,883 y de 2,294 m, respectivamente. Estas son las primeras observaciones de especímenes de Magnapinna en el Caribe Sur.
Collapse
|
21
|
Aalseth CE, Abgrall N, Aguayo E, Alvis SI, Amman M, Arnquist IJ, Avignone FT, Back HO, Barabash AS, Barbeau PS, Barton CJ, Barton PJ, Bertrand FE, Bode T, Bos B, Boswell M, Bradley AW, Brodzinski RL, Brudanin V, Busch M, Buuck M, Caldwell AS, Caldwell TS, Chan YD, Christofferson CD, Chu PH, Collar JI, Combs DC, Cooper RJ, Cuesta C, Detwiler JA, Doe PJ, Dunmore JA, Efremenko Y, Ejiri H, Elliott SR, Fast JE, Finnerty P, Fraenkle FM, Fu Z, Fujikawa BK, Fuller E, Galindo-Uribarri A, Gehman VM, Gilliss T, Giovanetti GK, Goett J, Green MP, Gruszko J, Guinn IS, Guiseppe VE, Hallin AL, Haufe CR, Hehn L, Henning R, Hoppe EW, Hossbach TW, Howe MA, Jasinski BR, Johnson RA, Keeter KJ, Kephart JD, Kidd MF, Knecht A, Konovalov SI, Kouzes RT, LaFerriere BD, Leon J, Lesko KT, Leviner LE, Loach JC, Lopez AM, Luke PN, MacMullin J, MacMullin S, Marino MG, Martin RD, Massarczyk R, McDonald AB, Mei DM, Meijer SJ, Merriman JH, Mertens S, Miley HS, Miller ML, Myslik J, Orrell JL, O'Shaughnessy C, Othman G, Overman NR, Perumpilly G, Pettus W, Phillips DG, Poon AWP, Pushkin K, Radford DC, Rager J, Reeves JH, Reine AL, Rielage K, Robertson RGH, Ronquest MC, Ruof NW, Schubert AG, Shanks B, Shirchenko M, Snavely KJ, Snyder N, Steele D, Suriano AM, Tedeschi D, Tornow W, Trimble JE, Varner RL, Vasilyev S, Vetter K, Vorren K, White BR, Wilkerson JF, Wiseman C, Xu W, Yakushev E, Yaver H, Young AR, Yu CH, Yumatov V, Zhitnikov I, Zhu BX, Zimmermann S. Search for Neutrinoless Double-β Decay in ^{76}Ge with the Majorana Demonstrator. Phys Rev Lett 2018; 120:132502. [PMID: 29694188 DOI: 10.1103/physrevlett.120.132502] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/09/2018] [Indexed: 06/08/2023]
Abstract
The Majorana Collaboration is operating an array of high purity Ge detectors to search for neutrinoless double-β decay in ^{76}Ge. The Majorana Demonstrator comprises 44.1 kg of Ge detectors (29.7 kg enriched in ^{76}Ge) split between two modules contained in a low background shield at the Sanford Underground Research Facility in Lead, South Dakota. Here we present results from data taken during construction, commissioning, and the start of full operations. We achieve unprecedented energy resolution of 2.5 keV FWHM at Q_{ββ} and a very low background with no observed candidate events in 9.95 kg yr of enriched Ge exposure, resulting in a lower limit on the half-life of 1.9×10^{25} yr (90% C.L.). This result constrains the effective Majorana neutrino mass to below 240-520 meV, depending on the matrix elements used. In our experimental configuration with the lowest background, the background is 4.0_{-2.5}^{+3.1} counts/(FWHM t yr).
Collapse
Affiliation(s)
- C E Aalseth
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - N Abgrall
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - E Aguayo
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - S I Alvis
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - M Amman
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - I J Arnquist
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - F T Avignone
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - H O Back
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
| | - A S Barabash
- National Research Center "Kurchatov Institute" Institute for Theoretical and Experimental Physics, Moscow, 117218 Russia
| | - P S Barbeau
- Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - C J Barton
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - P J Barton
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - F E Bertrand
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - T Bode
- Max-Planck-Institut für Physik, München, 80805 Germany
| | - B Bos
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - M Boswell
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - A W Bradley
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R L Brodzinski
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - V Brudanin
- Joint Institute for Nuclear Research, Dubna, 141980 Russia
| | - M Busch
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - M Buuck
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - A S Caldwell
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - T S Caldwell
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - Y-D Chan
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C D Christofferson
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - P-H Chu
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J I Collar
- Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - D C Combs
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
| | - R J Cooper
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - C Cuesta
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - J A Detwiler
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - P J Doe
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - J A Dunmore
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - Yu Efremenko
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - H Ejiri
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - S R Elliott
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - P Finnerty
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - F M Fraenkle
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - Z Fu
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - B K Fujikawa
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - E Fuller
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | | | - V M Gehman
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - T Gilliss
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - G K Giovanetti
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
- Department of Physics, Princeton University, Princeton, New Jersey 08544, USA
| | - J Goett
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M P Green
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - J Gruszko
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - I S Guinn
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - V E Guiseppe
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A L Hallin
- Centre for Particle Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - C R Haufe
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - L Hehn
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R Henning
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - E W Hoppe
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - T W Hossbach
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - M A Howe
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - B R Jasinski
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - R A Johnson
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - K J Keeter
- Department of Physics, Black Hills State University, Spearfish, South Dakota 57799, USA
| | - J D Kephart
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - M F Kidd
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
- Tennessee Tech University, Cookeville, Tennessee 38505, USA
| | - A Knecht
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - S I Konovalov
- National Research Center "Kurchatov Institute" Institute for Theoretical and Experimental Physics, Moscow, 117218 Russia
| | - R T Kouzes
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - B D LaFerriere
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - J Leon
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - K T Lesko
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - L E Leviner
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
| | - J C Loach
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Shanghai Jiao Tong University, Shanghai 200240, China
| | - A M Lopez
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - P N Luke
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J MacMullin
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - S MacMullin
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - M G Marino
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - R D Martin
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Physics, Engineering Physics and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - R Massarczyk
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A B McDonald
- Department of Physics, Engineering Physics and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - D-M Mei
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - S J Meijer
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - J H Merriman
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - S Mertens
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Max-Planck-Institut für Physik, München, 80805 Germany
- Physik Department and Excellence Cluster Universe, Technische Universität, München, 85748 Germany
| | - H S Miley
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - M L Miller
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - J Myslik
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J L Orrell
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - C O'Shaughnessy
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - G Othman
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - N R Overman
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - G Perumpilly
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - W Pettus
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - D G Phillips
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - A W P Poon
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - K Pushkin
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - D C Radford
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - J Rager
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - J H Reeves
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - A L Reine
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - K Rielage
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - R G H Robertson
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - M C Ronquest
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - N W Ruof
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - A G Schubert
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - B Shanks
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - M Shirchenko
- Joint Institute for Nuclear Research, Dubna, 141980 Russia
| | - K J Snavely
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - N Snyder
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - D Steele
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A M Suriano
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - D Tedeschi
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - W Tornow
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - J E Trimble
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - R L Varner
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - S Vasilyev
- Joint Institute for Nuclear Research, Dubna, 141980 Russia
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - K Vetter
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Nuclear Engineering, University of California, Berkeley, California 94720, USA
| | - K Vorren
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - B R White
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J F Wilkerson
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - C Wiseman
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - W Xu
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - E Yakushev
- Joint Institute for Nuclear Research, Dubna, 141980 Russia
| | - H Yaver
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A R Young
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
| | - C-H Yu
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - V Yumatov
- National Research Center "Kurchatov Institute" Institute for Theoretical and Experimental Physics, Moscow, 117218 Russia
| | - I Zhitnikov
- Joint Institute for Nuclear Research, Dubna, 141980 Russia
| | - B X Zhu
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - S Zimmermann
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| |
Collapse
|
22
|
Affiliation(s)
- G. Hetsroni
- Department of Nuclear Science and Department of Chemical Engineering TECHNION—Israel Institute of Technology, Haifa, Israel
| | - J. Leon
- Department of Nuclear Science and Department of Chemical Engineering TECHNION—Israel Institute of Technology, Haifa, Israel
| | - M. Hakim
- Department of Nuclear Science and Department of Chemical Engineering TECHNION—Israel Institute of Technology, Haifa, Israel
| |
Collapse
|
23
|
Sánchez EP, Miranda JG, Romero VC, Moreno J, Palma A, Pale LA, Leon J, Bulbena A, Perez V. Describing the assistance, the basis for improvement. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.641] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
IntroductionConsultation-liaison (CL) psychiatry is a branch of psychiatry that study and treat mental health of patients with other medical or surgical conditions. The assistance between hospitals and health services is heterogeneous.Aims and objectivesFor this reason, the objective of our research is to define the clinical characteristics from our CL service and check out the quality relationship with the applicant service, for improving future assistance.MethodsWe made a descriptive analysis of clinical variables from the patients who received assistance during 2 months by the CL service from the hospital del Mar, Barcelona. We got the frequencies and we used the Chi2 test for the comparison between variables: Diagnosis, appearance in the report and treatment in the report.ResultsTotal of the sample: 42 patients, 61.9% women. Mean age: 55.1 years. Psychiatric diagnosis was present before the assistance on 57.1% of the patients. The most frequent diagnosis was Adjustment Disorder (47.6%) and more than one diagnosis was made in the 14.3%. Near the half of the patients required only primary care assistance after the discharge from the hospital. In the 68.3% of the reports appeared information about CL assistance and the indicated treatment didn’t appear in all the reports. Statistically significant differences weren’t found in the comparisons.ConclusionsAdjustment Disorder is supposed to be the most common psychiatric diagnosis in our CL psychiatry service, as we found in the reviewed literature. The results reveal that relationships between services can be improved. More studies must be done for completing information in this issue.Disclosure of interestThe authors have not supplied their declaration of competing interest.
Collapse
|
24
|
Talamillo A, Grande L, Ruiz-Ontañon P, Velasquez C, Mollinedo P, Torices S, Sanchez-Gomez P, Aznar A, Esparis-Ogando A, Lopez-Lopez C, Lafita C, Berciano MT, Montero JA, Vazquez-Barquero A, Segura V, Villagra NT, Pandiella A, Lafarga M, Leon J, Martinez-Climent JA, Sanz-Moreno V, Fernandez-Luna JL. ODZ1 allows glioblastoma to sustain invasiveness through a Myc-dependent transcriptional upregulation of RhoA. Oncogene 2017; 36:1733-1744. [PMID: 27641332 DOI: 10.1038/onc.2016.341] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 08/01/2016] [Accepted: 08/10/2016] [Indexed: 02/06/2023]
Abstract
Long-term survival remains low for most patients with glioblastoma (GBM), which reveals the need for markers of disease outcome and novel therapeutic targets. We describe that ODZ1 (also known as TENM1), a type II transmembrane protein involved in fetal brain development, plays a crucial role in the invasion of GBM cells. Differentiation of glioblastoma stem-like cells drives the nuclear translocation of an intracellular fragment of ODZ1 through proteolytic cleavage by signal peptide peptidase-like 2a. The intracellular fragment of ODZ1 promotes cytoskeletal remodelling of GBM cells and invasion of the surrounding environment both in vitro and in vivo. Absence of ODZ1 by gene deletion or downregulation of ODZ1 by small interfering RNAs drastically reduces the invasive capacity of GBM cells. This activity is mediated by an ODZ1-triggered transcriptional pathway, through the E-box binding Myc protein, that promotes the expression and activation of Ras homolog family member A (RhoA) and subsequent activation of Rho-associated, coiled-coil containing protein kinase (ROCK). Overexpression of ODZ1 in GBM cells reduced survival of xenografted mice. Consistently, analysis of 122 GBM tumour samples revealed that the number of ODZ1-positive cells inversely correlated with overall and progression-free survival. Our findings establish a novel marker of invading GBM cells and consequently a potential marker of disease progression and a therapeutic target in GBM.
Collapse
Affiliation(s)
- A Talamillo
- Unidad de Genética, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - L Grande
- Unidad de Genética, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - P Ruiz-Ontañon
- Unidad de Genética, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - C Velasquez
- Servicio de Neurocirugía, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - P Mollinedo
- Unidad de Genética, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - S Torices
- Unidad de Genética, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - P Sanchez-Gomez
- Unidad de Neuro-Oncología, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - A Aznar
- Centro para la Investigación Médica Aplicada (CIMA), Pamplona, Spain
| | - A Esparis-Ogando
- Centro de Investigación del Cáncer (CSIC-USAL), Salamanca, Spain
| | - C Lopez-Lopez
- Servicio de Oncología Médica, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - C Lafita
- Instituto de Biomedicina y Biotecnología de Cantabria (IBBTEC), CSIC-Universidad de Cantabria, Santander, Spain
| | - M T Berciano
- Departamento de Anatomía y Biología Celular, Universidad de Cantabria, Santander, Spain
| | - J A Montero
- Departamento de Anatomía y Biología Celular, Universidad de Cantabria, Santander, Spain
| | | | - V Segura
- Centro para la Investigación Médica Aplicada (CIMA), Pamplona, Spain
| | - N T Villagra
- Servicio de Anatomía Patológica, Hospital Valdecilla and Instituto de Investigación Valdecilla (IDIVAL), Santander, Spain
| | - A Pandiella
- Centro de Investigación del Cáncer (CSIC-USAL), Salamanca, Spain
| | - M Lafarga
- Departamento de Anatomía y Biología Celular, Universidad de Cantabria, Santander, Spain
| | - J Leon
- Instituto de Biomedicina y Biotecnología de Cantabria (IBBTEC), CSIC-Universidad de Cantabria, Santander, Spain
| | | | - V Sanz-Moreno
- Randall Division of Cell and Molecular Biophysics, School of Biomedical and Health Sciences, King's College London, London, UK
| | | |
Collapse
|
25
|
Garcia-Gutierrez L, Bretones G, Arechaga I, Santamaria D, Barbacid M, Leon J. Myc-dependent cell cycle progression through the activation of CDK1 and phosphorylation of p27. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61270-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
26
|
Lafita M, Liaño J, Ourique F, Aresti J, Hurlin P, Leon J. The expression of MNT, a MYC antagonist, is autoregulated at the mRNA and protein level. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61064-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
27
|
Leon J, Davila A, Vega R, Chapa C, Islas C, Santos R. Reproductive outcomes in patients with severe OAT/NOA pretreated with FSHr 25 UI and TESE compared with obstructive azoospermia testicular biopsy outcomes: private center experience. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
28
|
Leon J, Cardenas R, Zapata M, Velasco L. OT-06 * MULTICENTRIC PRIMARY CENTRAL NERVOUS SYSTEM DIFFUSE LARGE B CELL LYMPHOMA IN AN INMUNOCOMPETENT ADOLESCENT, CASE REPORT. Neuro Oncol 2015. [DOI: 10.1093/neuonc/nov061.119] [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: 11/13/2022] Open
|
29
|
Oka S, Leon J, Tsuchimoto D, Sakumi K, Nakabeppu Y. MUTYH, an adenine DNA glycosylase, mediates p53 tumor suppression via PARP-dependent cell death. Oncogenesis 2014; 3:e121. [PMID: 25310643 PMCID: PMC4216901 DOI: 10.1038/oncsis.2014.35] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 07/15/2014] [Accepted: 08/25/2014] [Indexed: 12/12/2022] Open
Abstract
p53-regulated caspase-independent cell death has been implicated in suppression of tumorigenesis, however, the regulating mechanisms are poorly understood. We previously reported that 8-oxoguanine (8-oxoG) accumulation in nuclear DNA (nDNA) and mitochondrial DNA triggers two distinct caspase-independent cell death through buildup of single-strand DNA breaks by MutY homolog (MUTYH), an adenine DNA glycosylase. One pathway depends on poly-ADP-ribose polymerase (PARP) and the other depends on calpains. Deficiency of MUTYH causes MUTYH-associated familial adenomatous polyposis. MUTYH thereby suppresses tumorigenesis not only by avoiding mutagenesis, but also by inducing cell death. Here, we identified the functional p53-binding site in the human MUTYH gene and demonstrated that MUTYH is transcriptionally regulated by p53, especially in the p53/DNA mismatch repair enzyme, MLH1-proficient colorectal cancer-derived HCT116+Chr3 cells. MUTYH-small interfering RNA, an inhibitor for p53 or PARP suppressed cell death without an additive effect, thus revealing that MUTYH is a potential mediator of p53 tumor suppression, which is known to be upregulated by MLH1. Moreover, we found that the p53-proficient, mismatch repair protein, MLH1-proficient colorectal cancer cell line express substantial levels of MUTYH in nuclei but not in mitochondria, suggesting that 8-oxoG accumulation in nDNA triggers MLH1/PARP-dependent cell death. These results provide new insights on the molecular mechanism of tumorigenesis and potential new strategies for cancer therapies.
Collapse
Affiliation(s)
- S Oka
- 1] Division of Neurofunctional Genomics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan [2] Research Center for Nucleotide Pool, Kyushu University, Fukuoka, Japan
| | - J Leon
- Division of Neurofunctional Genomics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - D Tsuchimoto
- 1] Division of Neurofunctional Genomics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan [2] Research Center for Nucleotide Pool, Kyushu University, Fukuoka, Japan
| | - K Sakumi
- 1] Division of Neurofunctional Genomics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan [2] Research Center for Nucleotide Pool, Kyushu University, Fukuoka, Japan
| | - Y Nakabeppu
- 1] Division of Neurofunctional Genomics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan [2] Research Center for Nucleotide Pool, Kyushu University, Fukuoka, Japan
| |
Collapse
|
30
|
Marshall J, Shuster DE, Goldberg TR, Copigneaux C, Chen S, Zahir H, Dutta D, Saleh MN, Pishvaian MJ, Varela MS, Palazzo F, Lazaretti N, Costa C, Loredo E, Leon J, Von Roemeling RW. A randomized, open-label phase II study of efatutazone in combination with FOLFIRI as second-line therapy for metastatic colorectal cancer (mCRC). J Clin Oncol 2014. [DOI: 10.1200/jco.2014.32.3_suppl.535] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
535^ Background: Efatutazone, a highly-selective peroxisome proliferator-activated receptor gamma (PPARγ) agonist, has shown efficacy and manageable toxicity in phase I trials in solid tumors, including CRC. This study evaluated efatutazone in combination with chemotherapy for second-line mCRC. Methods: Patients (pts) from the United States and Latin America with mCRC progressing after first-line therapy not containing irinotecan were stratified by Eastern Cooperative Oncology Group (ECOG) status (0/1 vs. 2) and randomized 1:1 to efatutazone + FOLFIRI (E+F) or FOLFIRI alone (F). Treatment was administered in 4-week cycles until disease progression (PD), unacceptable toxicity, or consent withdrawal. Efatutazone (0.5 mg) was administered orally, twice daily; FOLFIRI (irinotecan 180 mg/m2, leucovorin 400 mg/m2, 5-fluorouracil 1200 mg/m2/d x 2 days) was administered intravenously once every 2 weeks immediately after efatutazone. The primary end point, progression-free survival (PFS) rate at week 16, was assessed locally according to Response Evaluation Criteria In Solid Tumors (RECIST) v1.0. Results: Characteristics of the 100 randomized pts were generally well balanced between the E+F and F treatment arms: median age, 59.7 vs. 58.3 years; male, 56% vs 56%; and ECOG 0/1, 98% vs. 92%. Across the arms, more pts discontinued due to PD than toxicity: 49% vs. 19%, respectively. While PFS rate at week 16 was 60% vs. 67% for the E+F vs F arms (p = 0.30), overall, PFS was somewhat longer with E+F than with F (hazard ratio [HR], 0.87; 90% [confidence interval [CI], 0.57–1.32) with medians of 4.4 vs. 4.2 months, respectively. The objective response rate also favored E+F over F (20% vs. 14%). Overall survival was not significantly different (HR, 0.95; 90% CI, 0.65–1.38). Fluid retention, which was managed with diuretics, was more frequent with E+F than with F: 86% vs. 12% (grade 3/4: 12% vs. 0%). Hematologic adverse events, including neutropenia (66% vs. 20%; grade 3/4: 44% vs. 12%) and febrile neutropenia (14% vs 0%), were more common with E+F than with F. Conclusions: Efatutazone minimally improved efficacy of FOLFIRI for CRC and increased neutropenia and fluid retention. Clinical trial information: NCT00967616.
Collapse
Affiliation(s)
- John Marshall
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | | | | | | | | | | | - Dipen Dutta
- Daiichi Sankyo Pharma Development, Edison, NJ
| | | | | | | | - Felipe Palazzo
- Center for the Integral Assistance of Oncology Patients, San Miguel de Tucumán, Argentina
| | | | - Cassia Costa
- Instituto do Cancer Dr. Arnaldo Vieira de Carvalho, São Paulo, Brazil
| | | | | | | |
Collapse
|
31
|
Domjahn BT, Hlavsa MC, Anderson B, Schulkin J, Leon J, Jones JL. A survey of U.S. obstetrician-gynecologists' clinical and epidemiological knowledge of cryptosporidiosis in pregnancy. Zoonoses Public Health 2013; 61:356-63. [PMID: 24119338 DOI: 10.1111/zph.12078] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Indexed: 11/30/2022]
Abstract
Although cryptosporidiosis is frequently diagnosed in the U.S., there has been very little assessment of obstetrician-gynaecologist knowledge about this disease. In 2010, we surveyed U.S. obstetricians about the diagnosis, treatment and epidemiology of cryptosporidiosis. Data were examined through univariable analysis and multivariable regression models. Of 1000 obstetrician-gynaecologists surveyed, 431 (43.1%) responded. Only 44.4% of respondents correctly identified that prolonged, intermittent diarrhoea would lead them to consider cryptosporidiosis in a differential diagnosis. Routine ova and parasites (O&P) testing was incorrectly chosen to identify Cryptosporidium in stool by 30.4% of respondents. Questions about nitazoxanide, the only drug approved by the U.S. Food & Drug Administration (FDA) for treatment of cryptosporidiosis, were the most frequently missed questions. Only 9.0% of respondents correctly classified nitazoxanide as an FDA pregnancy Category B drug, and only 5.6% of respondents correctly indicated that FDA approved nitazoxanide for immunocompetent patients aged ≥1 years. Regarding prevention- and control-related knowledge, only 14.1% of respondents correctly indicated that alcohol-based hand sanitizers were not effective at inactivating Cryptosporidium spp., and <10% correctly indicated that cryptosporidiosis is a reportable disease in their state of practice. Multivariable analysis found that ≥19 years in practice was positively associated with O&P diagnostic testing knowledge, while rural and urban non-inner city practice location, compared with suburban practice location, was positively associated with nitazoxanide knowledge. The low level of knowledge among obstetrician-gynaecologists about cryptosporidiosis indicates a need to develop resources for physicians about all aspects of cryptosporidiosis, particularly on diagnosis, treatment and prevention strategies.
Collapse
Affiliation(s)
- B T Domjahn
- Department of Obstetrics and Gynecology, Emory University School of Medicine, Atlanta, GA, USA
| | | | | | | | | | | |
Collapse
|
32
|
Garcia L, Ferrandiz N, Caraballo J, Lafita M, Bretones G, Quintanilla A, Muñoz-Alonso M, Blanco R, Agell N, Leon J. 669 P21WAF1 Represses Cell Cycle Genes in K562 Cells Acting as a Transcriptional Modulator. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71314-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
33
|
Caraballo Otero J, Acosta J, Gomez-Casares M, Cortes M, Batlle A, Cuadrado M, Colomer D, Leon J. 333 Myc/p27 Balance in Chronic Lymphocytic Leukemia. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71023-7] [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: 12/01/2022]
|
34
|
Gómez HL, Samanéz C, Campana F, Neciosup SP, Vera L, Casanova L, Leon J, Flores C, Hurtado de Mendoza F, Casteñeda CA, Pinto JA, Vallejos CS. Addition of amifostine to the CHOP regimen in elderly patients with aggressive non-Hodgkin lymphoma: a phase II trial showing reduction in toxicity without altering long-term survival. Hematol Oncol Stem Cell Ther 2012; 5:152-7. [DOI: 10.5144/1658-3876.2012.152] [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: 11/22/2022] Open
|
35
|
de Aretxabala X, Leon J, Wiedmaier G, Turu I, Ovalle C, Maluenda F, Gonzalez C, Humphrey J, Hurtado M, Benavides C. Gastric leak after sleeve gastrectomy: analysis of its management. Obes Surg 2012; 21:1232-7. [PMID: 21416198 DOI: 10.1007/s11695-011-0382-5] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Bariatric surgery is increasingly being performed and sleeve gastrectomy (SG) has proved to be effective and safe. Among its complications, leaks are the most serious and life threatening. METHODS The focus of the study is nine patients who underwent a SG and developed a gastric leak after surgery. Our data were obtained from the clinical charts of the patients and through interviews with the surgeon who performed the index surgery. RESULTS Eight patients underwent SG at outside institutions while one was operated at Clinica Alemana. Three patients developed symptoms within 5 days after surgery, while the rest were diagnosed after 10 days from the surgery. A CT scan was the method used to confirm the diagnosis in all patients. The three patients who had a leak detected during the immediate postoperative period underwent laparoscopic reoperation. Among the rest of the patients, percutaneous drainage was employed in one patient as the primary procedure while the other underwent surgical drainage. An esophageal endoluminal stent was employed in four patients. The leak closed in all patients with the healing time ranging from 21 to 240 days. CONCLUSIONS Diagnosis of a leak after a SG required a greater index of suspicion in order to perform an early diagnosis. Sepsis control and nutritional support are the cornerstones of this treatment. Evolution is characterized by longer periods of time that are necessary in order to wait until the leak closes. Management must be tailored to each patient.
Collapse
|
36
|
Leon J, Márquez-Carreras D, Vives J. Anticipating linear stochastic differential equations driven by a Lévy process. ELECTRON J PROBAB 2012. [DOI: 10.1214/ejp.v17-1910] [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: 11/19/2022]
Affiliation(s)
- Jorge Leon
- Departamento de Control Automatico Cinvestav-IPN
| | | | | |
Collapse
|
37
|
Anghel-Vasilescu P, Dorignac J, Geniet F, Leon J, Taki M. Nonlinear supratransmission in multicomponent systems. Phys Rev Lett 2010; 105:074101. [PMID: 20868047 DOI: 10.1103/physrevlett.105.074101] [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: 06/05/2010] [Indexed: 05/29/2023]
Abstract
A method is proposed to solve the challenging problem of determining the supratransmission threshold (onset of instability of harmonic boundary driving inside a band gap) in multicomponent nonintegrable nonlinear systems. It is successfully applied to the degenerate three-wave resonant interaction in a birefringent quadratic medium where the process generates spatial gap solitons. No analytic expression is known for this model showing the broad applicability of the method to nonlinear systems.
Collapse
Affiliation(s)
- P Anghel-Vasilescu
- Laboratoire de Physique Théorique et Astroparticules, CNRS-IN2P3-UMR5207, Université Montpellier 2, 34095 Montpellier, France
| | | | | | | | | |
Collapse
|
38
|
Leon J, Bretones G, Acosta J, Caraballo J, Ferrandiz N, Perez-Roger I, Albajar M. 661 SKP2 oncogene is a MYC target gene in human leukemia cells. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71459-2] [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: 11/27/2022] Open
|
39
|
Khomeriki R, Leon J. Chaotic spatial soliton rays in smooth two-dimensional optical lattices. Opt Lett 2009; 34:3376-3378. [PMID: 19881599 DOI: 10.1364/ol.34.003376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The light ray of a spatial soliton in an optical film whose refractive index is smoothly modulated (wavelength much larger than the typical soliton width) in both spatial directions is shown to possess chaotic regimes for which the propagation is erratic. This is interpreted as a parametric driven pendulum, obtained by what we believe to be a new perturbative approach of the Maxwell's equation. These findings are then demonstrated to compare well to the eikonal law of light ray propagation (nonlinearity compensates diffraction).
Collapse
Affiliation(s)
- R Khomeriki
- Laboratoire de Physique Théorique et Astroparticules, CNRS-IN2P3-UMR 5207, Université Montpellier 2, 34095 Montpellier, France.
| | | |
Collapse
|
40
|
de Aretxabala X, Roa I, Hepp J, Maluenda F, Mordojovich G, Leon J, Roa JC. Early gallbladder cancer: Is further treatment necessary? J Surg Oncol 2009; 100:589-93. [DOI: 10.1002/jso.21389] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
41
|
Vasquez J, Montesinos E, Peralta J, Rojas L, DeLaRosa J, Leon J. Need for Lung Resection in Patients with Intact or Ruptured Hydatid Cysts. Thorac Cardiovasc Surg 2009; 57:295-302. [DOI: 10.1055/s-0029-1185604] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
42
|
Vidaurre T, Olivera M, Gómez H, Pinto J, Doimi F, Velarde R, Abugattas J, Leon J, Mas L, Vigil C. Effect of dose intensity and overexpression of topoisomerase iia on survival in patients with locally advanced breast cancer treated with anthracyclines. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.11512] [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: 11/20/2022] Open
|
43
|
Korshunova Y, Maloney RK, Lakey N, Citek RW, Bacher B, Budiman A, Ordway JM, McCombie WR, Leon J, Jeddeloh JA, McPherson JD. Massively parallel bisulphite pyrosequencing reveals the molecular complexity of breast cancer-associated cytosine-methylation patterns obtained from tissue and serum DNA. Genes Dev 2008; 18:19-29. [PMID: 18032725 PMCID: PMC2134785 DOI: 10.1101/gr.6883307] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2007] [Accepted: 09/18/2007] [Indexed: 01/06/2023]
Abstract
Cytosine-methylation changes are stable and thought to be among the earliest events in tumorigenesis. Theoretically, DNA carrying tumor-specifying methylation patterns escape the tumors and may be found circulating in the sera from cancer patients, thus providing the basis for development of noninvasive clinical tests for early cancer detection. Indeed, using methylation-specific PCR-based techniques, several groups reported the detection of tumor-associated methylated DNA in the sera from cancer patients with varying clinical success. However, by design, such analytical approaches allow assessment of the presence of molecules with only one methylation pattern, leaving the bigger picture unexplored. The limited knowledge about circulating DNA methylation patterns hinders the efficient development of clinical methylation tests and testing platforms. Here, we report the results of a comprehensive methylation pattern analysis from breast cancer clinical tissues and sera obtained using massively parallel bisulphite pyrosequencing. The four loci studied were recently discovered by our group, and demonstrated to be powerful epigenetic biomarkers of breast cancer. The detailed analysis of more than 700,000 DNA fragments derived from more than 50 individuals (cancer and cancer-free) revealed an unappreciated complexity of genomic cytosine-methylation patterns in both tissue derived and circulating DNAs. Both tumor and cancer-free tissues (as well as sera) contained molecules with nearly every conceivable cytosine-methylation pattern at each locus. Tumor samples displayed more variation in methylation level than normal samples. Importantly, by establishing the methylation landscape within circulating DNA, this study has better defined the development challenges facing DNA methylation-based cancer-detection tests.
Collapse
Affiliation(s)
| | | | - Nathan Lakey
- Orion Genomics, LLC, St. Louis. Missouri 63108, USA
| | | | | | | | | | | | - Jorge Leon
- Orion Genomics, LLC, St. Louis. Missouri 63108, USA
| | - Jeffrey A. Jeddeloh
- Orion Genomics, LLC, St. Louis. Missouri 63108, USA
- Roche NimbleGen, Madison, Wisconsin 53719, USA
| | - John D. McPherson
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA
| |
Collapse
|
44
|
Ordway JM, Budiman MA, Korshunova Y, Maloney RK, Bedell JA, Citek RW, Bacher B, Peterson S, Rohlfing T, Hall J, Brown R, Lakey N, Doerge RW, Martienssen RA, Leon J, McPherson JD, Jeddeloh JA. Identification of novel high-frequency DNA methylation changes in breast cancer. PLoS One 2007; 2:e1314. [PMID: 18091988 PMCID: PMC2117343 DOI: 10.1371/journal.pone.0001314] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2007] [Accepted: 11/06/2007] [Indexed: 12/31/2022] Open
Abstract
Recent data have revealed that epigenetic alterations, including DNA methylation and chromatin structure changes, are among the earliest molecular abnormalities to occur during tumorigenesis. The inherent thermodynamic stability of cytosine methylation and the apparent high specificity of the alterations for disease may accelerate the development of powerful molecular diagnostics for cancer. We report a genome-wide analysis of DNA methylation alterations in breast cancer. The approach efficiently identified a large collection of novel differentially DNA methylated loci (∼200), a subset of which was independently validated across a panel of over 230 clinical samples. The differential cytosine methylation events were independent of patient age, tumor stage, estrogen receptor status or family history of breast cancer. The power of the global approach for discovery is underscored by the identification of a single differentially methylated locus, associated with the GHSR gene, capable of distinguishing infiltrating ductal breast carcinoma from normal and benign breast tissues with a sensitivity and specificity of 90% and 96%, respectively. Notably, the frequency of these molecular abnormalities in breast tumors substantially exceeds the frequency of any other single genetic or epigenetic change reported to date. The discovery of over 50 novel DNA methylation-based biomarkers of breast cancer may provide new routes for development of DNA methylation-based diagnostics and prognostics, as well as reveal epigenetically regulated mechanism involved in breast tumorigenesis.
Collapse
Affiliation(s)
- Jared M Ordway
- Orion Genomics, St. Louis, Missouri, United States of America.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Khomeriki R, Leon J. Driving light pulses with light in two-level media. Phys Rev Lett 2007; 99:183601. [PMID: 17995406 DOI: 10.1103/physrevlett.99.183601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2007] [Indexed: 05/25/2023]
Abstract
A two-level medium, described by the Maxwell-Bloch system, is engraved by establishing a standing cavity wave with a linearly polarized electromagnetic field that drives the medium on both ends. A light pulse, polarized along the other direction, then scatters the medium and couples to the cavity standing wave by means of the population inversion density variations. We demonstrate that control of the applied amplitudes of the grating field allows one to stop the light pulse and to make it move backward (eventually to drive it freely). A simplified limit model of the Maxwell-Bloch system with variable boundary driving is obtained as a discrete nonlinear Schrödinger equation with tunable external potential. It reproduces qualitatively the dynamics of the driven light pulse.
Collapse
Affiliation(s)
- R Khomeriki
- Laboratoire de Physique Théorique et Astroparticules CNRS-IN2P3-UMR5207, Université Montpellier 2, 34095 Montpellier, France
| | | |
Collapse
|
46
|
Lopez LM, Olivera M, Casanova L, Santos C, Neciosup S, Gomez H, Leon J, Velarde C, Mariategui J, Vidaurre T. Gestational trophoblastic disease: 25-year experience at the Instituto Nacional de Enfermedades Neoplasicas (INEN). J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.16031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
16031 Background: To evaluate the clinical behavior and results of treatment of gestational trophoblastic disease at INEN between 1980 to 2005. Methods: This is a retrospective analysis of patients with gestational trophoblastic disease, clinical characteristics, results of treatment, toxicity, objective response and survival from January 1980 to December 2005. Descriptive statistics and Kaplan-Meier for survival analysis were performed. Results: Since Jan 1980 to Dec 2005. 595 patients were admitted at INEN; Hydatidiform mole 254 (42.7%) choriocarcinoma 201 (33.8%) invasive mole 41(6.8%). FIGO scoring System, high risk (score >6): 247 (41.5%), low risk (score 1–6): 348 (58.5%). Age ranged from 14 to 54 years, with 255 (44%) cases between 20 to 29 years. The sities of metastasis: lung 67.3%, vaginal 17.9%, brain 8.7%, liver 5.1%. The patients with low risks received treatment with Metotrexate 0.4mg/kg x day x 5 days po, reach disease control with a mean course of 6 (1 - 14), complete remission in 66.1% cases and 97% the overall survival rate to 20 years. Patients with high risk received treatment with: MAC 77 patients, MEC 19 patients, EMACO 48 patients and BEP 14 patients and achieved complete remission in 32.5%, 36.8%, 50% and 25% respectively. On the high risk group we detected two groups according to score > 12 and < 12, with diferent probability of survival at 20 years, for the group with score <12, 80% and the group with score >12, 48%. 98 patients were identified with score >12, and the age of these patients ranged from 15 to 51 years, with a mean age of 36.5 years. The blood B- HCG titers of these patients ranged from 198 to 6710,500. Liver and brain metastasis in 26 cases, number metastasis mayor 8 in 78 cases. Conclusions: Gestational trofhoblastic disease is highly curable. Patients of low risk achieved a 97% overall survival rate to 20 years. There are differences in the overall survival rate between patients of high risk with a score < 12 (80%) and score >12 (48%). This group presented with brain and liver metastasis, and it is important to define the best treatment for this group of patients No significant financial relationships to disclose.
Collapse
|
47
|
Ve Koon KT, Leon J, Marquié P, Tchofo-Dinda P. Cutoff solitons and bistability of the discrete inductance-capacitance electrical line: theory and experiments. Phys Rev E Stat Nonlin Soft Matter Phys 2007; 75:066604. [PMID: 17677373 DOI: 10.1103/physreve.75.066604] [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] [Received: 02/08/2007] [Revised: 04/27/2007] [Indexed: 05/16/2023]
Abstract
A discrete nonlinear system driven at one end by a periodic excitation of frequency above the upper band edge (the discreteness induced cutoff) is shown to be a means to (1) generate propagating breather excitations in a long chain and (2) reveal the bistable property of a short chain. After detailed numerical verifications, the bistability prediction is demonstrated experimentally on an electrical transmission line made of 18 inductance-capacitance (LC) cells. The numerical simulations of the LC -line model allow us also to verify the breather generation prediction with a striking accuracy.
Collapse
Affiliation(s)
- K Tse Ve Koon
- Institut Carnot de Bourgogne, UMR 5209 CNRS, Université de Bourgogne, 9 Avenue A. Savary, Boîte Postal 47 870, 21078 Dijon, France
| | | | | | | |
Collapse
|
48
|
Stippich C, Leon J, Akbar M, Durst A, Nennig E, Sartor K. Funktionelle Organisation des primären Motorkortex (M1) bei Patienten mit angeborener Paraplegie (Spina bifida aperta/Meningomyelocele (MMC)). ROFO-FORTSCHR RONTG 2007. [DOI: 10.1055/s-2007-977188] [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: 10/21/2022]
|
49
|
Ordway JM, Bedell JA, Citek RW, Nunberg A, Garrido A, Kendall R, Stevens JR, Cao D, Doerge RW, Korshunova Y, Holemon H, McPherson JD, Lakey N, Leon J, Martienssen RA, Jeddeloh JA. Comprehensive DNA methylation profiling in a human cancer genome identifies novel epigenetic targets. Carcinogenesis 2006; 27:2409-23. [PMID: 16952911 DOI: 10.1093/carcin/bgl161] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.4] [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: 02/06/2023] Open
Abstract
Using a unique microarray platform for cytosine methylation profiling, the DNA methylation landscape of the human genome was monitored at more than 21,000 sites, including 79% of the annotated transcriptional start sites (TSS). Analysis of an oligodendroglioma derived cell line LN-18 revealed more than 4000 methylated TSS. The gene-centric analysis indicated a complex pattern of DNA methylation exists along each autosome, with a trend of increasing density approaching the telomeres. Remarkably, 2% of CpG islands (CGI) were densely methylated, and 17% had significant levels of 5 mC, whether or not they corresponded to a TSS. Substantial independent verification, obtained from 95 loci, suggested that this approach is capable of large scale detection of cytosine methylation with an accuracy approaching 90%. In addition, we detected large genomic domains that are also susceptible to DNA methylation reinforced inactivation, such as the HOX cluster on chromosome 7 (CH7). Extrapolation from the data suggests that more than 2000 genomic loci may be susceptible to methylation and associated inactivation, and most have yet to be identified. Finally, we report six new targets of epigenetic inactivation (IRX3, WNT10A, WNT6, RARalpha, BMP7 and ZGPAT). These targets displayed cell line and tumor specific differential methylation when compared with normal brain samples, suggesting they may have utility as biomarkers. Uniquely, hypermethylation of the CGI within an IRX3 exon was correlated with over-expression of IRX3 in tumor tissues and cell lines relative to normal brain samples.
Collapse
|
50
|
de Aretxabala X, Roa I, Burgos L, Losada H, Roa JC, Mora J, Hepp J, Leon J, Maluenda F. Gallbladder cancer: an analysis of a series of 139 patients with invasion restricted to the subserosal layer. J Gastrointest Surg 2006; 10:186-92. [PMID: 16455449 DOI: 10.1016/j.gassur.2005.11.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [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: 06/04/2005] [Revised: 11/07/2005] [Accepted: 11/08/2005] [Indexed: 01/31/2023]
Abstract
The goal was to study our experience in the management of a series of patients with a potentially curative subserosal gallbladder cancer who were prospectively treated by the authors. Between April 1988 and July 2004, 139 patients were enrolled in our prospective database. Of the above, 120 were operated on with an open procedure and the rest with laparoscopic surgery. In only eight patients was the diagnosis suspected before the cholecystectomy. The majority of tumors were adenocarcinoma. Six patients had an epidermoid tumor, and one had a carcinosarcoma. Of the patients, 74 underwent reoperation, while in 55 (70.2%) it was possible to perform an extended cholecystectomy with a curative aim. Operative mortality was 0%, and operative morbidity was 16%. Lymph node metastases were found in 10 (18.8%), while in 7 (13.2%) the liver was involved. The overall survival rate was 67.7%, while in those who underwent resection, the survival rate was 77%. Through the use of a multivariate analysis, the presence of lymph node metastasis was found to be an independent factor with respect to prognosis. The feasibility of performing an extended cholecystectomy in patients with gallbladder cancer and invasion of the subserosal layer allows for a good survival rate. The presence of lymph node metastases represents the main poor prognosis factor, and some type of adjuvant therapy should be studied in this particular group.
Collapse
|