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Alvarado-Miranda A, Cabrera-Galeana P, Muñoz-Montaño WR, Lara-Medina F, Bargallo-Rocha E, Arrieta-Rodriguez O, Perez M, Porras-Reyes F, Mohar-Betancourt A, Gamboa C. Abstract P1-19-07: Real-world characteristics, treatment patterns, and overall survival in patients with metastatic breast cancer (mBC) and CNS metastases. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-19-07] [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: 11/16/2022]
Abstract
Abstract
Background:
CNS metastases are reported in about 10 to 15%. Knowledge about the management of these patients are limited because they are excluded from clinical trials due to its poor prognosis and morbidity. In these study, we aim to describe characteristics, treatment patterns, and overall survival (OS) of patients of mBC with CNS metastases at Instituto Nacional de Cancerología de Mexico (INCan) from january 2007 to december 2015.
Methods:
We include patients with histological diagnosis of mBC and tumoral activity in the CNS (at diagnosis or during de follow-up). mBC subtype was defined using HER2 and hormone receptor (HR) status by immunohistochemistry; systemic treatment, and mortality data were used to characterize mBC with CNS involment.
Results:
During the study period, we found 1272 patients diagnosed with metastatic disease, of whom 408 had CNS disease (novo/recurrence) the median follow up was 52 months. Table 1 describes the percentage of CNS metastases by subtype, clinical characteristics at diagnosis and median OS. Almost all patients (85.6%) were candidate to holocranial radiotherapy; after that, systemic treatment varied according to the subtype of mBC; 69.1% of TN received CT (26% based on platinum); 75.3% of HER2+ received systemic treatment, all included antiher2 therapy; luminal subtype, no one were treated with endocrine therapy.
Table 1.- characteristics and Overall suvival by subtype of mBC all mBC 1272 n(%)her2 positive 339 (26.6) n (%)triple negative 298 (23.4) n(%)luminal 636 (50) n(%)CNS metastasis at dianosis44 (3.5)12 (3.5)13 (4.4)19 (2.9)CNS mets after prog to systemic tx205(16.1)63(18.6)50(16.7)92(14.5)CNS as first place of recurrence159(12.5)75(22.2)34(11.4)50(7.8)prevalence on CNS mets408(10.7)150(14.7)97(10.8)161(8.4)median age at diagnosis of CNS mets50(28-84)50(29-84)48(28-80)51(28-80)median OS after CNS mets (months)14.927.29.3316.3
Conclusions:
HER2 positive breast cancer patients have the highest prevalence of CNS metastases, whereas luminal has the lowest. Patients with HER2+ and CNS metastases commonly receive treatment based on anti-HER2 therapy, maybe this target treatment contribute to the better survival achieved than patients with luminal or TN subtype. mBC with CNS metastases continues in the real world to be an unmet medical need.
Citation Format: Alvarado-Miranda A, Cabrera-Galeana P, Muñoz-Montaño WR, Lara-Medina F, Bargallo-Rocha E, Arrieta-Rodriguez O, Perez M, Porras-Reyes F, Mohar-Betancourt A, Gamboa C. Real-world characteristics, treatment patterns, and overall survival in patients with metastatic breast cancer (mBC) and CNS metastases [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-19-07.
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Affiliation(s)
- A Alvarado-Miranda
- Instituto Nacional de Cancerología, Ciudad de México, Ciudad De Mexico, Mexico
| | - P Cabrera-Galeana
- Instituto Nacional de Cancerología, Ciudad de México, Ciudad De Mexico, Mexico
| | - WR Muñoz-Montaño
- Instituto Nacional de Cancerología, Ciudad de México, Ciudad De Mexico, Mexico
| | - F Lara-Medina
- Instituto Nacional de Cancerología, Ciudad de México, Ciudad De Mexico, Mexico
| | - E Bargallo-Rocha
- Instituto Nacional de Cancerología, Ciudad de México, Ciudad De Mexico, Mexico
| | - O Arrieta-Rodriguez
- Instituto Nacional de Cancerología, Ciudad de México, Ciudad De Mexico, Mexico
| | - M Perez
- Instituto Nacional de Cancerología, Ciudad de México, Ciudad De Mexico, Mexico
| | - F Porras-Reyes
- Instituto Nacional de Cancerología, Ciudad de México, Ciudad De Mexico, Mexico
| | - A Mohar-Betancourt
- Instituto Nacional de Cancerología, Ciudad de México, Ciudad De Mexico, Mexico
| | - C Gamboa
- Instituto Nacional de Cancerología, Ciudad de México, Ciudad De Mexico, Mexico
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Abstract
The Urban Health Equity Assessment Response Tool (Urban HEART) combines statistical evidence and community knowledge to address urban health inequities. This paper describes the process of adopting and implementing this tool for Detroit, Michigan, the first city in the USA to use it. The six steps of Urban HEART were implemented by the Healthy Environments Partnership, a community-based participatory research partnership made up of community-based organizations, health service providers, and researchers based in academic institutions. Local indicators and benchmarks were identified and criteria established to prioritize a response plan. We examine how principles of CBPR influenced this process, including the development of a collaborative and equitable process that offered learning opportunities and capacity building among all partners. For the health equity matrix, 15 indicators were chosen within the Urban HEART five policy domains: physical environment and infrastructure, social and human development, economics, governance, and population health. Partners defined the criteria and ranked them for use in assessing and prioritizing health equity gaps. Subsequently, partners generated a series of potential actions for indicators prioritized in this process. Engagement of community partners contributed to benchmark selection and modification, and provided opportunities for dialog and co-learning throughout the process. Application of a CBPR approach provided a foundation for engagement of partners in the Urban HEART process of identifying health equity gaps. This approach offered multiple opportunities for discussion that shaped interpretation and development of strategies to address identified issues to achieve health equity.
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Affiliation(s)
- R Mehdipanah
- School of Public Health, University of Michigan, Ann Arbor, MI, USA.
| | - A J Schulz
- School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - B A Israel
- School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - C Gamboa
- School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Z Rowe
- Friends of Parkside, Detroit, MI, USA
| | - M Khan
- School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - A Allen
- Chandler Park Conservancy, Detroit, MI, USA
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Gamboa C, Algan O. Utilization Patterns for Stereotactic Radiosurgery in the Management of Meningioma: A National Cancer Database Report. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.767] [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: 11/16/2022]
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Freeman A, Gamboa C, Darbinian J, Torrente S. Disparities in the Rates of HPV Vaccine Series Completion for Cervical Cancer Prevention. Gynecol Oncol 2017. [DOI: 10.1016/j.ygyno.2017.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Bajpeyi S, Pasarica M, Conley KE, Newcomer BR, Jubrias SA, Gamboa C, Murray K, Sereda O, Sparks LM, Smith SR. Pioglitazone-induced improvements in insulin sensitivity occur without concomitant changes in muscle mitochondrial function. Metabolism 2017; 69:24-32. [PMID: 28285649 DOI: 10.1016/j.metabol.2016.11.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 11/19/2016] [Accepted: 11/29/2016] [Indexed: 12/16/2022]
Abstract
AIMS Pioglitazone (Pio) is known to improve insulin sensitivity in skeletal muscle. However, the role of Pio in skeletal muscle lipid metabolism and skeletal muscle oxidative capacity is not clear. The aim of this study was to determine the effects of chronic Pio treatment on skeletal muscle mitochondrial activity in individuals with type 2 diabetes (T2D). MATERIALS AND METHODS Twenty-four participants with T2D (13M/11F 53.38±2.1years; BMI 36.47±1.1kg/m2) were randomized to either a placebo (CON, n=8) or a pioglitazone (PIO, n=16) group. Following 12weeks of treatment, we measured insulin sensitivity by hyperinsulinemic-euglycemic clamp (clamp), metabolic flexibility by calculating the change in respiratory quotient (ΔRQ) during the steady state of the clamp, intra- and extra-myocellular lipid content (IMCL and EMCL, respectively) by 1H magnetic resonance spectroscopy (1H-MRS) and muscle maximal ATP synthetic capacity (ATPmax) by 31P-MRS. RESULTS Following 12weeks of PIO treatment, insulin sensitivity (p<0.0005 vs. baseline) and metabolic flexibility (p<0.05 vs. CON) significantly increased. PIO treatment significantly decreased IMCL content and increased EMCL content in gastrocnemius, soleus and tibialis anterior muscles. ATPmax was unaffected by PIO treatment. CONCLUSIONS These results suggest that 12weeks of pioglitazone treatment improves insulin sensitivity, metabolic flexibility and myocellular lipid distribution without any effect on maximal ATP synthetic capacity in skeletal muscle. Consequently, pioglitazone-induced enhancements in insulin responsiveness and fuel utilization are independent of mitochondrial function.
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Affiliation(s)
- Sudip Bajpeyi
- Pennington Biomedical Research Center, 6400 Perkins Road, Baton Rouge, LA 70808, USA; Department of Kinesiology, University of Texas in El Paso, 500 University Ave, El Paso, TX 79968, USA
| | - Magdalena Pasarica
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL 32804, USA
| | - Kevin E Conley
- Department of Radiology, University of Washington Medical Center, 1959 NE Pacific St, Seattle, WA 98195, USA
| | - Bradley R Newcomer
- Department of Clinical and Diagnostic Sciences, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Sharon A Jubrias
- Department of Radiology, University of Washington Medical Center, 1959 NE Pacific St, Seattle, WA 98195, USA
| | - Cecilia Gamboa
- Department of Kinesiology, University of Texas in El Paso, 500 University Ave, El Paso, TX 79968, USA
| | - Kori Murray
- Pennington Biomedical Research Center, 6400 Perkins Road, Baton Rouge, LA 70808, USA
| | - Olga Sereda
- Pennington Biomedical Research Center, 6400 Perkins Road, Baton Rouge, LA 70808, USA
| | - Lauren M Sparks
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL 32804, USA; Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL 32827, USA
| | - Steven R Smith
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL 32804, USA; Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL 32827, USA.
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Moñino M, Rodrigues E, Tapia MS, Domper A, Vio F, Curis A, París F, Martínez N, Sénior A, Galeano H, Gamboa C, Alvarado PE, Estradas JJ, Rey J, Miembros de AIAM5 RD. Evaluación de las actividades de promoción de consumo de frutas y verduras en 8 países miembros de la Alianza Global de Promoción al Consumo de Frutas y Hortalizas “5 al día” – AIAM5. Rev Esp Nutr Hum Diet 2016. [DOI: 10.14306/renhyd.20.4.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Introducción: Este artículo recopila las prácticas de promoción del consumo de frutas y verduras por parte de ocho miembros de AIAM5 - Alianza Global de Promoción al Consumo de Frutas y Hortalizas “5 al día”, con el objetivo de identificar buenas prácticas en el planteamiento de estrategias, programas y actividades para la promoción del consumo de frutas y hortalizas.Material y Métodos: Se empleó un cuestionario diseñado para categorizar e identificar fortalezas, debilidades, oportunidades, costo-efectividad, viabilidad, así como las prácticas de mayor potencial para adaptarse a políticas de promoción de salud nacionales. Se evaluaron cuestionarios procedentes de ocho países de la AIAM5: México, Chile, Costa Rica, Venezuela, Colombia, Bolivia, Nicaragua y España.Resultados: Una de las grandes fortalezas de las entidades que conforman AIAM5 es el prestigio y conocimiento académico, profesional y técnico que respalda sus actividades. Se evidenció la debilidad de sus estrategias por la falta de medición del impacto de sus actividades y evaluación de costo-efectividad. También se evidenció que algunas entidades que lideran programas “5 al día” son concebidas como empresas sociales con diversidad de tipos de socios y aliados.Conclusiones: Se recomienda que los miembros de AIAM5 hagan un esfuerzo para medir el impacto de las actividades e intervenciones que realicen, estableciendo objetivos cuantificables mediante indicadores que permitan evaluar el grado de alcance de las acciones llevadas a cabo. Así mismo, es recomendable que exploten el nicho de oportunidades que ofrece la Responsabilidad Social Corporativa, para alcanzar sus objetivos de promoción del consumo de frutas y verduras.
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Gamboa C, Smith M, Arain A, Ahmad S, Bogardus C, Matthiesen C. Simultaneous Integrated Boost Planning Technique for Locally Advanced Squamous Cell Carcinoma of the Head and Neck: An Analysis of Efficacy, Failure Patterns, and Clinical Outcomes. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1616] [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: 10/20/2022]
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Navarro-Millan I, Gamboa C, Curtis J, Safford M. FRI0132 Lipid Management among Individuals with Inflammatory Arthritis in The National Reasons for Geographic and Racial Differences in Stroke Cohort. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2403] [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]
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Conde D, Gamboa C, Covington J, King GA, Bajpeyi S. Effect Of 30 Or 11.5 Volts Of Pulse Stimulation On Mitochondrial Density In Vitro. Med Sci Sports Exerc 2016. [DOI: 10.1249/01.mss.0000487251.01681.c5] [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: 11/21/2022]
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Gamboa C, Conde D, Covington J, Rustan A, King GA, Varela A, Bajpeyi S. Electrical Pulse Stimulation Increases Mitochondrial Content In Lean, But Not In Type 2 Diabetic Myotubes. Med Sci Sports Exerc 2015. [DOI: 10.1249/01.mss.0000466014.44604.d1] [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: 11/21/2022]
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Conde D, Gamboa C, Covington J, Rustan A, King GA, Varela A, Bajpeyi S. Electrical Pulse Stimulation Induced Changes On Lipid, Mitochondrial, Glut4 And Ampk Content In Human Myotubes. Med Sci Sports Exerc 2015. [DOI: 10.1249/01.mss.0000476937.05365.34] [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: 11/21/2022]
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Patel S, Bowen S, Gamboa C, Baik C, Zeng J. Improved Survival With Prophylactic Cranial Irradiation in Modern Cohort of Limited-Stage Small Cell Lung Cancer Patients With MRI Brain Imaging. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Bilgic A, Sezer S, Ozdemir N, Kurita N, Hosokawa N, Nomura S, Maeda Y, Uchihara H, Fukuhara S, Gascon LD, Karohl C, Smith AL, Wilson RO, Raggi P, Ignace S, Loignon RC, Couture V, Marquis K, Utescu M, Lariviere R, Agharazii M, Zahalkova J, Marsova M, Nikorjakova I, vestak M, amboch K, Bellasi A, Gamboa C, Ferramosca E, Ratti C, Block G, Muntner P, Raggi P, Makino J, Makino K, Ito T, Kato S, Yuzawa Y, Yasuda Y, Tsuruta Y, Itoh A, Maruyama S, Karasavvidou D, Kalaitzidis R, Spanos G, Pappas K, Pappas E, Kountouris S, Tatsioni A, Siamopoulos K, Staffolani E, Galli D, Nicolais R, Magliano G, Forleo GB, Santini L, Romano V, Sgueglia M, Romeo F, Di Daniele N, Freercks R, Swanepoel C, Carrara H, Raggi P, Rayner B, Freercks R, Swanepoel C, Carrara H, Raggi P, Rayner B, Fedak D, Kuzniewski M, Galicka-Latala D, Kusnierz-Cabala B, Dumnicka P, Pasowicz M, Solnica B, Sulowicz W, Kuzniewski M, Fedak D, Kapusta M, Kusnierz-Cabala B, Janda K, Pasowicz M, Solnica B, Sulowicz W, Ozcan M, Calayoglu R, Sengul S, Ensari A, Hazinedaroglu S, Tuzuner A, Nergizoglu G, Erbay B, Keven K, Gross T, Floege J, Leon S, Markus K, Vincent B, Ulrich G, Zitt E, Koenig M, Vychytil A, Auinger M, Wallner M, Lingenhel G, Schilcher G, Lhotta K, Csiky B, Toth G, Sulyok E, Melegh B, Vas T, Wittmann I, Martens-Lobenhoffer J, Awiszus F, Bode-Boger SM, Staffolani E, Nicolais R, Miani N, Galli D, Borzacchi MS, Cipriani S, Sturniolo A, Di Daniele N, Abouseif K, Bichari W, Elewa U, Buimistriuc LD, Badarau S, Stefan A, Leanca E, Covic A, Kimura H, Mukai H, Miura S, Maeda A, Takeda K, Sikole A, Trajceska L, Selim G, Amitov V, Dzekova P, Gelev S, Severova G, Trajceski T, Abe Y, Watanabe M, Ito K, Ogahara S, Nakashima H, Saito T, Oleniuc M, Secara IF, Nistor I, Onofriescu M, Covic A, Papagianni A, Kasimatis E, Stavrinou E, Pliakos K, Spartalis M, Dimitriadis C, Belechri AM, Giamalis P, Economidou D, Efstratiadis G, Memmos D, Chen R, Xing C, Bi G, Ito S, Oyake N, Tanabe K, Shimada T, Capurro F, De Mauri A, Brustia M, Navino C, David P, De Leo M, Usvyat L, Bayh I, Etter M, Lam M, Levin NW, Marcelli D, Raimann JG, Schuh E, Thijssen S, Kotanko P, Sipahioglu M, Unal A, Kocyigit I, Karakurt M, Oguzhan N, Cilan H, Kavuncu F, Tokgoz B, Oymak O, Utas C, Canas L, Galan A, Ferrer E, Filella A, Fernandez M, Bayes B, Bonet J, Bonal J, Romero R, Amore A, Puccinelli MP, Petrillo G, Albiani R, Bonaudo R, Camilla R, Steckiph D, Grandi F, Bracco G, Coppo R, Chen X, Zhu P, Chen Y, Xu Y, Chen N, Tatar E, Kircelli F, Asci G, Carrero JJ, Gungor O, Demirci MS, Ozkahya M, Toz H, Ok E, Buzdugan E, Condor A, Crisan S, Radulescu D, Lucaciu D, Hakemi MS, Nassiri AA, Asadzadeh R, Faizei AM, Molsted S, Andersen JL, Eidemak I, Harrison AP, Rodriguez Gomez MA, Fernandez-Reyes Luis MJ, Molina Ordas A, Heras Benito M, Sanchez Hernandez R, Mortazavi Najafabadi M, Moinzadeh F, Saadatnia SM, Shahidi S, Davarpanah A, Farajzadegan Z, Rodriguez-Reimundes E, Rognant N, Jolivot A, Abdeljaouad A, Pelletier S, Juillard L, Laville M, Fouque D, Santoro A, Zuccala A, Cagnoli L, Bolasco PG, Panzetta O, Mercadal L, Fessy H, London G, Severi S, Domini R, Grandi F, Corsi C. Cardiovascular complications in CKD 5D (2). Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Rodriguez-Riao JJ, Figueira D, Zarraga E, Lion L, Fuentes MB, Fernandez P, Nasr I, Gamboa C, Ochoa J. 5-fluorouracil (5-FU) plus cisplatin (CDDP) induction chemotherapy followed by combined external bean radiation therapy (XRT) and mitomycin-C (MMC) and 5-FU chemotherapy in locally advanced anal canal cancer (ACC). J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.14016] [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
14016 Background: Definitive chemoradiation therapy is the standard of care for squamous or cloacogenic cell ACC. The chemotherapy regimen comprising 5-FU and MMC is the most commonly used among patients with ACC, nearly 70% of patients can get complete response (CR), with the benefit of sphincter preservation, but patients with a large tumors (T3/T4) or nodal metastases have a response of 50%. Methods: To improve outcome, we conducted a phase II, study of 5-FU and CDDP followed by combined XRT plus 5-FU and MMC. Eligibility included patients withT3/T4 ACC with limited locoregional nodal involvement (N0/N1). Treatment: 5-FU 1000 mg/m2/days 1 to 5 in continuous i.v. infusion plus CDDP 100 mg/m2 i.v. day 1 q21d was administered for 2 cycles (weeks 1 and 4) followed by XRT (4.5 Gy) during 6 weeks (weeks 7 to12) with concurrent 5-FU 1000 mg/m2/days 1 to 4 in continuous i.v. infusion plus MMC 10 mg/m2 i.v. day 1 (weeks 9 and 17). RECIST criteria were used to assess tumor response Results: 59 patients were entered on this study from 8/2000 to 2/2005. Median age: 57 yrs (37–83), 49 F/10 M, median ECOG PS 0 (0–1), T3/T4 44/15, N0/N1 20/39. 54 patients were evaluable for clinical response: Induction chemotherapy led to 13 (24%) CR, 38 (70%) partial responses (PR) and 2 (6%) stable disease. After combined modality treatment, there were a total of 36 (67%) CR, 13 (24%) PR, 5 (9%) SD. Median follow up was 21.6 months (5–52).The median time to progression is 20.5 months (3–52). Toxicity grade 3/4: Neutropenia 20% (10/54), thrombocytopenia 13% (7/54), radiodermatitis 13% (7/54), nausea/vomiting 7% (4/54). Our previous experience with concurrent treatment without induction (n=27) resulted in a CR 59%, PR 37%, and 4% progressive disease Conclusions: We concluded that induction chemotherapy followed by combined XRT and chemotherapy could be an option in treatment of locally advanced ACC. No significant financial relationships to disclose.
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Affiliation(s)
| | - D. Figueira
- Instituto Oncológico Luis Razetti, Miami, FL
| | - E. Zarraga
- Instituto Oncológico Luis Razetti, Miami, FL
| | - L. Lion
- Instituto Oncológico Luis Razetti, Miami, FL
| | | | | | - I. Nasr
- Instituto Oncológico Luis Razetti, Miami, FL
| | - C. Gamboa
- Instituto Oncológico Luis Razetti, Miami, FL
| | - J. Ochoa
- Instituto Oncológico Luis Razetti, Miami, FL
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Ventura O, Marcello G, Gamboa C, Miro A. Implantes mamarios en el plano subfascial en reemplazo del bolsillo subglandular: un cambio lógico. Cir Plást Iberlatinamer 2006. [DOI: 10.4321/s0376-78922006000100003] [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: 11/11/2022] Open
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Abstract
The properties of the microheterogeneous systems formed by mixtures of cetyltrimethylammonium bromide (CTAB) and an alternating copolymer of maleic acid and styrene, MAS, and their anionic monoesters, MAS-n with n=2, 4, 6, 8, were investigated. The fluorescence of pyrene was used to sense the polarity of the polymer/CTAB aggregates. Measurements of the ratio III/I in pyrene fluorescence spectra indicate that the polymer/CTAB aggregates are more hydrophobic than normal micelles. A series of p-alkyl substituted phenols were employed to probe the solubilization ability of these aggregates. The distribution constant K(S) of phenol, p-methylphenol, p-ethylphenol, and p-propylphenol between water and MAS-n/CTAB aggregates and the corresponding free energy of transfer Deltamicro(0)(t) have been determined using the pseudo-phase model. The results show that the distribution is mainly determined by the phenol structure, and a linear free energy relationship has been found between Deltamicro(0)(t) and the structure of phenols. On the other hand, an increase in the number of methylene groups in the side alkyl chain has no effect on Deltamicro(0)(t). The results are discussed and compared with those obtained for ionic micelles.
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Affiliation(s)
- A F Olea
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile
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Medina F, Enriquez I, Alvarado A, Gamboa C, Morales F, Castañeda N, Zinser JW. Chemoradiosensitizing (CTRT) versus radiation therapy alone (XRT) after adjuvant chemotherapy in breast cancer women with 4 to 9 positive lymph nodes. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.859] [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)
- F. Medina
- Instituto Nacional de Cancerología, México, D.F., Mexico
| | - I. Enriquez
- Instituto Nacional de Cancerología, México, D.F., Mexico
| | - A. Alvarado
- Instituto Nacional de Cancerología, México, D.F., Mexico
| | - C. Gamboa
- Instituto Nacional de Cancerología, México, D.F., Mexico
| | - F. Morales
- Instituto Nacional de Cancerología, México, D.F., Mexico
| | - N. Castañeda
- Instituto Nacional de Cancerología, México, D.F., Mexico
| | - J. W. Zinser
- Instituto Nacional de Cancerología, México, D.F., Mexico
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Olea AF, Gamboa C. Synergism in mixtures of cationic surfactant and anionic copolymers. J Colloid Interface Sci 2003; 257:321-6. [PMID: 16256486 DOI: 10.1016/s0021-9797(02)00019-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2002] [Accepted: 09/18/2002] [Indexed: 11/23/2022]
Abstract
Surface tension measurements have been made in aqueous solutions of anionic hemiesters of an alternating copolymer of maleic acid and styrene, MAS-n with n=0-12, in the presence of dodecyltrimethylammonium bromide, DTAB. A synergistic aspect of surface tension reduction efficiency was observed for all systems studied. The pseudo-phase separation approach and regular solution approximation have been applied, and the interaction parameter, beta, and the mole fraction of DTAB in the adsorbed layer (on a surfactant/repetitive unit basis), X, were obtained. Negative values of beta, ranging from -3 to -11, were calculated. On the other hand, the molar fraction of DTAB varies from 0.52 to 0.26. These results are discussed in terms of hydrophobic effects on the distribution of the aggregates between the interface and the bulk of the solution. The conditions predicted by the model to obtain synergism in the tension reduction efficiency are completely satisfied in all cases.
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Affiliation(s)
- A F Olea
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile.
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Lanas F, Garcés E, Eggers G, Montecinos A, Díaz M, Gamboa C, Stockins B. [Comparison of the effects of digoxin or enalapril in the treatment of heart failure due to mitral insufficiency]. Rev Med Chil 1998; 126:251-7. [PMID: 9674293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND There is not much evidence about the usefulness of digoxin or enalapril in the treatment of heart failure due to mitral insufficiency. AIM To compare digoxin and enalapril in the treatment of heart failure due to mitral insufficiency. PATIENTS AND METHODS Patients with mitral insufficiency, in sinus rhythm, with a heart failure grade II or III and with echocardiographic left ventricular dilatation were eligible for the study. They received sequentially, during 12 weeks each, digoxin 0.25 mg/day or enalapril in doses up to 20 mg/day, with a washout in-between period of 2 weeks. The order of the sequence was determined randomly. At the start and end of treatment, functional class according to NYHA and maximal exercise tolerance in the treadmill were assessed and a color Doppler echocardiogram was done to measure ventricular dimensions, function and degree of mitral insufficiency. RESULTS Nine patients on enalapril and 12 on digoxin improved their functional capacity. Digoxin improved exercise time in 76 +/- 168 sec (p = 0.022), whereas this change was not significant with enalapril (38 +/- 158 sec; p = 0.2). With enalapril treatment, ventricular diastolic dimension decreased from 59.3 +/- 8.1 to 58 +/- 9.3 mm and the area of mitral insufficiency decreased from 8.1 +/- 3.5 to 6.6 +/- 3.1 cm2. Digoxin did not induce any significant echocardiographic change. CONCLUSIONS In these patients, digoxin and enalapril improved functional class. Digoxin improved exercise time and enalapril reduced ventricular dimensions and mitral insufficiency.
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Affiliation(s)
- F Lanas
- Unidades de Cardiología, Universidad de La Frontera, Temuco, Chile
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Affiliation(s)
- R E LaPorte
- Department of Epidemiology, University of Pittsburgh, PA 15213, USA
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Laporte RE, Akazawa S, Boostrom E, Campos M, Gamboa C, Gooch T, Lee HK, Libman I, Marler E, Roko K. Global public health and the information superhighway. Global health network university proposed. BMJ 1994; 309:737. [PMID: 7950533 PMCID: PMC2540785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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LaPorte RE, Sauer F, Marler S, Gamboa C, Akazawa S, Gooch T. Health and climate change. Lancet 1994; 343:302-3. [PMID: 7905132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Sierra R, Chinnock A, Ohshima H, Pignatelli B, Malaveille C, Gamboa C, Teuchmann S, Muñoz N, Bartsch H. In vivo nitrosoproline formation and other risk factors in Costa Rican children from high- and low-risk areas for gastric cancer. Cancer Epidemiol Biomarkers Prev 1993; 2:563-8. [PMID: 8268774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The hypothesis that intragastric synthesis of N-nitroso compounds (NOC) in early life could play a role in gastric carcinogenesis was tested by applying the N-nitrosoproline (NPRO) test to about 50 children living in high- and low-risk areas for stomach cancer in Costa Rica. The median values of excretion of NPRO and the sum of three nitrosamino acids (micrograms/12 h urine) were 10-20% of those in adults from other geographical high-risk areas for stomach cancer. The urinary NPRO level after proline intake was higher in children from the high-risk area (P < 0.04) and markedly reduced after ingestion of ascorbic acid together with proline (P < 0.05). NPRO levels on the day of proline intake were highly correlated with levels of nitrate excretion (P < 0.001). Mean levels of total NOC in an aqueous (pH 2) extract of cooked beans from the high- and low-risk areas were similar. Acid-catalyzed nitrosation of the extract increased the total NOC concentration up to 1000-fold, but there was no difference between samples from the two areas. About 10% of bean extracts from both areas showed weak direct-acting genotoxicity in Escherichia coli; after acid-catalyzed nitrosation, all samples were genotoxic at similar levels. The diet of children in the low-risk area satisfied recommended levels of intake of energy and most nutrients except riboflavin and retinol equivalents. Diets from the high-risk area were deficient in energy intake and all nutrients except protein and vitamin C.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- R Sierra
- University of Costa Rica, San José
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Vidal T, Gamboa C, Henríquez MI, Biolley A. [Cryptosporidium: outbreak at a nutrition rehabilitation center, Temuco]. Rev Med Chil 1991; 119:1136-9. [PMID: 1845207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Cryptosporidiosis was observed in 23 undernourished infants of a nutritional center in Temuco. This represents a 34% incidence rate for the period (march to may 1990). Liquid stools (91%), vomiting (39%), resistance to feeding (74%), respiratory symptoms (61%) and weight loss (mean 25 g per day) were the main clinical manifestations. Only 9 patients received specific therapy and all showed clinical improvement and normalization of stool examinations within the study period.
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Affiliation(s)
- T Vidal
- Servicio de Pediatría, Hospital Regional de Temuco, Chile
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Biolley MA, Gamboa C, Astete S, Ulloa R. [Intestinal infection by parasites and/or hosts in school children of the IX region, Chile]. Bol Chil Parasitol 1990; 45:86-91. [PMID: 2152366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The prevalence of intestinal infection by parasites and/or commensals in primary school students from Lautaro, IX Region, was studied. The sample included 68 children from rural and 67 from urban areas. A Telemann modified method, Ziehl-Neelsen technique for Cryptosporidium sp. detection and Graham test were used. The results pointed out high rates of infections by protozoa and helminths (85.4%). There are no statistical differences related to origin for sex or scholarship. In the total sample, the more frequent parasite found was G. lamblia (37.8%); among the youngest was 60.7%. The second frequency was for T. trichiura (22.2%) and the third one for A. lumbricoides (12.6%). Among commensals the percentages were: E. coli 45.5% and E. nana 33.3%. It could be concluded that the intestinal infection by parasites and/or commensals in school children is endemic in the IX region, because the environmental conditions are appropriate for its permanence and transmission, specially in lower socioeconomical groups.
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Affiliation(s)
- M A Biolley
- Departamento de Ciencias Preclínicas, Facultad de Medicina, Universidad de la Frontera, Temuco, Chile
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Gamboa C, Vidal T, Hebel E, Biolley MA, Henríquez MI. [Isospora infection of chronic course]. Rev Med Chil 1986; 114:674-7. [PMID: 3496647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Stockins B, Opazo J, Gamboa C, Salvatici R, Lanas F, Saavedra J, Curimil N, Karstegl P. [Hemodynamic effects of nifedipine in acute myocardial infarction]. Rev Med Chil 1985; 113:193-6. [PMID: 3835623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Lanas F, Stockins B, Gamboa C, Salvatici R, Opaso JA, Saavedra J. [Echocardiography in bacterial endocarditis]. Rev Med Chil 1985; 113:203-6. [PMID: 3835625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Stockins B, Salvatici R, Opazo J, Gamboa C, Saavedra J, Curimil N. [Contrast echocardiography with CO2 in the diagnosis of tricuspid valve insufficiency]. Rev Med Chil 1984; 112:1225-8. [PMID: 6443235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Carranza C, del Río R, Pinto M, Atías A, Miquel C, Carabantes J, Gamboa C, Milos P, Villarroel L, Astorga B, Carrere I. [Noninvasive diagnosis of cardiovascular abnormalities in subclinical Chagas' disease (author's transl)]. Rev Med Chil 1980; 108:1002-10. [PMID: 7017866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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