Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 28
Filtrar
1.
Br J Haematol ; 201(6): 1153-1158, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36974355

RESUMO

Haematopoietic stem cell reinjection may be a curative option for poor graft function after haematopoietic stem cell transplantation; however, literature supporting its use remains limited. We conducted a multicentre retrospective study on behalf of the Francophone Society of Bone Marrow Transplantation and Cellular Therapy, including 55 patients. We demonstrated response rates of nearly 40% and two-year survival of more than 60% in the context of an otherwise deadly complication and we observed that the timing of injection and the degree of cytopenia are strongly associated with outcomes. This study shows the feasibility of the procedure informing on its epidemiology, outcomes and prognostic factors, setting the stage for future guidelines.


Assuntos
Transplante de Medula Óssea , Transplante de Células-Tronco Hematopoéticas , Humanos , Estudos Retrospectivos , Sociedades Médicas , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Terapia Baseada em Transplante de Células e Tecidos
2.
Enferm. univ ; 15(2): 159-171, abr.-jun. 2018. tab, graf
Artigo em Espanhol | LILACS-Express | LILACS, BDENF | ID: biblio-953233

RESUMO

Objetivo: Determinar los factores asociados al consumo de tabaco en los estudiantes de la Licenciatura en Enfermería de la Universidad Autónoma del Estado de Morelos. Métodos: Estudio transversal realizado en 481 estudiantes que completaron un cuestionario autoaplicado con características sociodemográficas, consumo de tabaco, actitudes y conocimientos acerca del tabaquismo. Los factores asociados se analizaron con un modelo de regresión logística múltiple. Resultados: La prevalencia de fumadores activos fue de 42.4%. Se presenta mayor prevalencia en estudiantes del primer año (44.3%), que en los de cuarto año (13.9%) de la carrera. Los factores asociados al consumo de tabaco fueron el ser hombre (OR = 1.7; IC 95% (1.0 - 3.0)), ver cigarros sueltos a la venta (OR = 9.4; IC 95% (3.8 - 23.0)), que todos los amigos fumen (OR = 6.0; IC 95% (1.3-27.7)), no estar de acuerdo con prohibiciones de publicidad, así como con lugares para no fumar (OR = 3.2; IC 95% (3.0-5.2)) y cuyos padres no saben si ellos fuman (OR = 6.9; IC 95% (3.2 - 14.6)). Conclusiones: Al avanzar el estudiante en su formación académica se disminuye el consumo de tabaco. Se recomienda la incorporación de temas específicos sobre los efectos del consumo de tabaco en la salud en los contenidos de las asignaturas del programa de Licenciatura en Enfermería, así como la capacitación de los estudiantes en programas de prevención, control y cesación del tabaquismo.


Objective: To determine factors associated with tobacco use among students in the baccalaureate nursing program of the State of Morelos Autonomous University. Methods: This a transversal study with 481 students who answered a self-administered questionnaire on issues of social and demographical characteristics and attitudes and knowledge towards tobacco use. Associated factors were analyzed through a multiple logistic regression model. Results: The overall active smoking prevalence was 42.2%. A higher figure was found in the first year students in comparison to senior students (44.3% vs 13.9%). Some associated factors were: being male (OR = 1.7; CI 95% (1.0 - 3.0)); watching cigarettes being sold (OR = 9.3; CI 95% (3.8 - 23.0)); having all friends being smokers (OR = 6.0; CI 95% (1.3 - 27.7)); being in disagreement with prohibition publicity and smoking-banned places (OR = 3.2; CI 95% (3.0 - 5.2)); and having parents unaware of their sons' smoking habits (OR = 6.9; CI 95% (3.3 - 14.6)). Conclusions: Although students tend to decrease their tobacco use while they progress along their careers, it is recommended to incorporate into nursing baccalaureate programs diverse topic discussions on the health impacts from tobacco smoking in order to train the students in its prevention, control, and withdrawal.


Objetivo: Determinar os fatores associados ao consumo de tabaco nos estudantes da Licenciatura de Enfermagem da Universidad Autónoma del Estado de Morelos. Métodos: Estudo transversal realizado em 481 estudantes que completaram um questionário auto-aplicado com caraterísticas sociodemográficas, consumo de tabaco, atitudes e conhecimentos acerca do tabagismo. Os fatores associados analisaram-se com um modelo de regressão logística múltipla. Resultados: A prevalência de fumadores ativos foi de 42.4%. Apresenta-se maior prevalência em estudantes do primeiro ano (44.3%), quanto nos de quarto ano (13.9%) da carreira. Os fatores associados ao consumo de tabaco foram: o ser homem (OR = 1.7; IC 95% (1.0-3.0)), ver cigarros fracionados à venda (OR = 9.3; IC 95% (3.8 - 23.0)), que todos os amigos fumem, (OR = 6.0; IC 95% (1.3-27.7)), não concordar com proibições de publicidade, assim como com lugares para não fumantes (OR = 3.2; IC 95% (3.0 - 5.2)) e cujos pais não sabem que eles fumam (OR = 6.9; IC 95% (3.3 - 14.6)). Conclusões: Ao avançar o estudante em sua formação académica diminui o consumo de tabaco. Recomenda-se a incorporação de temas específicos sobre os efeitos do consumo de tabaco na saúde dentro dos conteúdos das disciplinas do programa de Licenciatura em Enfermagem, assim como o treinamento dos estudantes em programas de prevenção, controle e suspensão de tabagismo.


Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto , Estudantes de Enfermagem , Conhecimento , Uso de Tabaco
4.
Ann Oncol ; 28(9): 2191-2198, 2017 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-28911060

RESUMO

BACKGROUND: Fludarabine/busulfan-based conditioning regimens are widely used to perform allogeneic stem-cell transplantation (allo-SCT) in high-risk non-Hodgkin lymphoma (NHL) patients. The impact of the dose intensity of busulfan on outcomes has not been reported yet. PATIENTS AND METHODS: This was a retrospective with the aim to compare the outcomes of NHL patients who received before allo-SCT a fludarabine/busulfan conditioning regimen, either of reduced intensity (FB2, 2 days of busulfan at 4 mg/kg/day oral or 3.2 mg/kg/day i.v.) (n = 277) or at a myeloablative reduced-toxicity dose (FB3/FB4, 3 or 4 days of busulfan at 4 mg/kg/day oral or 3.2 mg/kg/day i.v.) (n = 101). RESULTS: In univariate analysis, the 2-year overall survival (FB2 66.5% versus 60.3%, P = 0.33), lymphoma-free survival (FB2 57.9% versus 49.8%, P = 0.26), and non-relapse mortality (FB2 19% versus 21.1%, P = 0.91) were similar between both groups. Cumulative incidence of grade III-IV acute graft versus host disease (GVHD) (FB2 11.2% versus 18%, P = 0.08), extensive chronic GVHD (FB2: 17.3% versus 10.7%, P = 0.18) and 2-year GVHD free-relapse free survival (FB2: 44.4% versus 42.8%, P = 0.38) were also comparable. In multivariate analysis there was a trend for a worse outcome using FB3/FB4 regimens (overall survival: HR 1.47, 95% CI: 0.96-2.24, P = 0.08; lymphoma-free survival: HR: 1.43, 95% CI: 0.99-2.06, P = 0.05; relapse incidence: HR 1.54; 95% CI: 0.96-2.48, P = 0.07). These results were confirmed using a propensity score-matching strategy. CONCLUSION: We conclude that reduced toxicity myeloablative conditioning with fludarabine/busulfan does not improve the outcomes compared with reduced-intensity conditioning in adults receiving allo-SCT for NHL.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Bussulfano/administração & dosagem , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Linfoma não Hodgkin/terapia , Condicionamento Pré-Transplante , Vidarabina/análogos & derivados , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Feminino , Doença Enxerto-Hospedeiro , Humanos , Linfoma não Hodgkin/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Análise de Sobrevida , Vidarabina/administração & dosagem , Adulto Jovem
5.
Bone Marrow Transplant ; 52(10): 1428-1435, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28650455

RESUMO

Unrelated cord blood transplantation (UCBT) after a reduced intensity conditioning regimen (RIC) has extended the use of UCB in elderly patients and those with co-morbidities without an HLA-identical donor, although post-transplant relapse remains a concern in high-risk acute myeloid leukemia (AML) patients. HLA incompatibilities between donor and recipient might enhance the alloreactivity of natural killer (NK) cells after allogeneic hematopoietic stem-cell transplantation (HSCT). We studied the reconstitution of NK cells and KIR-L mismatch in 54 patients who underwent a RIC-UCBT for AML in CR in a prospective phase II clinical trial. After RIC-UCBT, NK cells displayed phenotypic features of both activation and immaturity. Restoration of their polyfunctional capacities depended on the timing of their acquisition of phenotypic markers of maturity. The incidence of treatment-related mortality (TRM) was correlated with low CD16 expression (P=0.043) and high HLA-DR expression (P=0.0008), whereas overall survival was associated with increased frequency of NK-cell degranulation (P=0.001). These features reflect a general impairment of the NK licensing process in HLA-mismatched HSCT and may aid the development of future strategies for selecting optimal UCB units and enhancing immune recovery.


Assuntos
Transplante de Células-Tronco de Sangue do Cordão Umbilical , Células Matadoras Naturais/imunologia , Leucemia Mieloide Aguda/imunologia , Recuperação de Função Fisiológica/imunologia , Sistema de Registros , Condicionamento Pré-Transplante , Adulto , Aloenxertos , Intervalo Livre de Doença , Feminino , Humanos , Leucemia Mieloide Aguda/mortalidade , Leucemia Mieloide Aguda/terapia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Taxa de Sobrevida
6.
Bone Marrow Transplant ; 52(8): 1120-1125, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28530668

RESUMO

Relapse remains the most common cause of treatment failure in patients receiving autologous stem cell transplantation (ASCT) for follicular lymphoma (FL). The aim of this study was to evaluate the effect of adding radioimmunotherapy or rituximab (R) to BEAM (carmustine, etoposide, ara-c, melphalan) high-dose therapy for ASCT in patients with relapsed FL. Using the European Society for Blood and Marrow Transplantation registry, we conducted a cohort comparison of BEAM (n=1973), Zevalin-BEAM (Z-BEAM) (n=207) and R-BEAM (n=179) and also a matched-cohort analysis of BEAM vs Z-BEAM including 282 and 154 patients, respectively. BEAM, Z-BEAM and R-BEAM groups were well balanced for age, time from diagnosis to ASCT and disease status at ASCT. The cumulative incidences of relapse (IR) at 2 years were 34, 34 and 32% for Z-BEAM, R-BEAM and BEAM, respectively. By multivariate analysis, there were no significant differences with Z-BEAM or R-BEAM compared with BEAM for IR, non-relapse mortality, event-free survival or overall survival. With the caveat that the limitations of registry analyses have to be taken into account, this study does not support adding radioimmunotherapy or R to BEAM in ASCT for relapsed FL. However, we cannot rule out the existence a particular subset of patients who could benefit from Z-BEAM conditioning that cannot be identified in our series, and this should be tested in a randomized trial.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Transplante de Células-Tronco Hematopoéticas/métodos , Linfoma Folicular/terapia , Radioimunoterapia/métodos , Adulto , Idoso , Carmustina/uso terapêutico , Estudos de Casos e Controles , Terapia Combinada/métodos , Citarabina/uso terapêutico , Etoposídeo/uso terapêutico , Feminino , Transplante de Células-Tronco Hematopoéticas/mortalidade , Humanos , Linfoma Folicular/mortalidade , Masculino , Melfalan/uso terapêutico , Pessoa de Meia-Idade , Estudos Retrospectivos , Rituximab/uso terapêutico , Análise de Sobrevida , Transplante Autólogo , Adulto Jovem
7.
Bone Marrow Transplant ; 51(7): 928-32, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27042842

RESUMO

This report retrospectively analyzed the outcome of 91 patients aged 60 years or older with refractory/relapsed (R/R) classical Hodgkin's lymphoma (cHL) who underwent autologous stem cell transplantation (ASCT) between 1992 and 2013 and were reported to the French Society of Bone Marrow Transplantation and Cell Therapies registry. The median age at transplant was 63 years. The majority of patients exhibited disease chemosensitivity to salvage treatment (57 complete responses, 30 partial responses, 1 progressive disease and 3 unknown). The most frequent conditioning regimen consisted of BCNU, cytarabine, etoposide, melphalan (BEAM) chemotherapy (93%). With a median follow-up of 54 months, 5-year estimates of overall survival (OS) and progression free survival (PFS) for the entire group were 67 and 54%, respectively. Despite the missing data, in univariate analysis, the number of salvage chemotherapy lines (1-2 versus ⩾3) significantly influenced the OS, unlike the other prognostic factors (stage III-IV at relapse, disease status before ASCT and negative positron emission tomography (PET) scan) encountered in younger patients. In spite of its limitations, this retrospective study with a long-term follow-up suggests that ASCT is a valid treatment option for chemosensitive R/R cHL in selected elderly patients, with an acceptable rate of toxicity.


Assuntos
Transplante de Células-Tronco Hematopoéticas/métodos , Doença de Hodgkin/terapia , Terapia de Salvação/métodos , Fatores Etários , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Feminino , Seguimentos , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Transplante de Células-Tronco Hematopoéticas/mortalidade , Doença de Hodgkin/mortalidade , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Terapia de Salvação/mortalidade , Análise de Sobrevida , Transplante Autólogo
8.
Bone Marrow Transplant ; 51(9): 1184-90, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27111043

RESUMO

Poly-chemotherapy plus rituximab followed by autologous stem cell transplantation (auto-SCT) is standard care for untreated young patients with mantle cell lymphoma (MCL). Despite this intensive treatment, transplant patients remain highly susceptible to relapse over time. The French SFGM-TC performed a national survey on reduced-intensity conditioning allogeneic stem cell transplantation (RIC-allo-SCT) for fit relapsed/refractory patients who failed after auto-SCT (n=106). Median times of relapse after auto-SCT, and from auto-SCT to RIC-allo-SCT were 28 months and 3.6 years, respectively. Sixty per cent of patients received at least three lines of treatment before RIC-allo-SCT. Conditioning regimens for RIC-allo-SCT were heterogeneous. Twenty patients experienced grade III/IV aGvHD, extensive cGvHD was reported in 28 cases. Median follow-up after RIC-allo-SCT was 45 months. Median PFS after RIC-allo-SCT was 30.1 months and median overall survival was 62 months. Treatment-related mortality (TRM) at 1 year and 3 years were estimated at 28% and 32%, respectively. A total of 52 patients died; major causes of death were related to toxicity (n=34) and MCL (n=11). Patients in good response before RIC-allo-SCT experienced a better PFS and OS. Our work highlights the need for new RIC-allo-SCT MCL-tailored approaches to reduce TRM, and early and late relapse.


Assuntos
Transplante de Células-Tronco Hematopoéticas/métodos , Linfoma de Célula do Manto/terapia , Terapia de Salvação/métodos , Transplante Homólogo , Adulto , Idoso , Feminino , França , Doença Enxerto-Hospedeiro/etiologia , Transplante de Células-Tronco Hematopoéticas/mortalidade , Humanos , Linfoma de Célula do Manto/complicações , Linfoma de Célula do Manto/mortalidade , Masculino , Pessoa de Meia-Idade , Terapia de Salvação/mortalidade , Inquéritos e Questionários , Análise de Sobrevida , Condicionamento Pré-Transplante/métodos , Transplante Autólogo/efeitos adversos , Transplante Autólogo/mortalidade , Transplante Homólogo/efeitos adversos , Transplante Homólogo/métodos , Transplante Homólogo/mortalidade
9.
Bone Marrow Transplant ; 51(2): 256-61, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26569092

RESUMO

Epidemiology and prognosis of complications related to allogeneic hematopoietic stem cell transplant (HSCT) recipients requiring admission to intensive care unit (ICU) have not been reassessed precisely in the past few years. We performed a retrospective single-center study on 318 consecutive HSCT patients (2009-2013), analyzing outcome and factors prognostic of ICU admission. Among these patients, 73 were admitted to the ICU. In all, 32 patients (40.3%) died in ICU, 46 at hospital discharge (63%) and 61 (83.6%) 1 year later. Survivors had a significantly lower sequential organ failure assessment (SOFA) score, serum lactate and bilirubin upon ICU admission. Catecholamine support, mechanical ventilation (MV) and/or renal replacement therapy during ICU stay, a delayed organ support and an active graft versus host disease (GvHD) significantly worsen the outcome. By multivariate analysis, the worsening of SOFA score from days 1 to 3, the need for MV and the occurrence of an active GvHD were predictive of mortality. In conclusion, the incidence of HSCT-related complications requiring an admission to an ICU was at 22%, with an ICU mortality rate of 44%, and 84% 1 year later. A degradation of SOFA score at day 3 of ICU, need of MV and occurrence of an active GvHD are main predictive factors of mortality.


Assuntos
Doença Enxerto-Hospedeiro , Transplante de Células-Tronco Hematopoéticas , Unidades de Terapia Intensiva , Adulto , Aloenxertos , Intervalo Livre de Doença , Feminino , Seguimentos , Doença Enxerto-Hospedeiro/mortalidade , Doença Enxerto-Hospedeiro/terapia , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Taxa de Sobrevida
11.
Ann Oncol ; 26(1): 193-198, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25361987

RESUMO

BACKGROUND: Patients with advanced B-cell non-Hodgkin's lymphoma (NHL) refractory to initial chemotherapy or relapsing after autologous stem-cell transplantation have a poor prognosis. Allogeneic stem-cell transplantation after reduced-intensity conditioning (RIC) regimen can be a therapeutic option. However, the high incidence of relapse remains a challenging issue. We speculated that the incorporation of (90)Y-Ibritumomab tiuxetan into a fludarabine-based RIC regimen would improve the lymphoma control without overwhelming toxicity. Our aim was to evaluate the safety of (90)Y-Ibritumomab tiuxetan in association with such a regimen in a prospective multicenter phase II trial. PATIENTS AND METHODS: Thirty-one patients with advanced lymphoma from five distinct institutions were included between February 2008 and October 2010. Thirty patients in complete or partial response after failure of a median of 3 (range, 2-4) previous chemotherapy regimens including autologous transplant in 29 were evaluable for nonrelapse mortality (NRM) at day 100 post-transplant that was the primary end point. RESULTS: With a median follow-up of 32 months (range, 29-60 months), the 2-year event-free and overall survivals of the whole study group were both 80% [95 confidence interval (CI) 60.8% to 90.5%). The 100-day and 2-year post-transplant cumulative incidences of NRM were 3.3% (95% CI 0.2% to 14.9%) and 13.3% (95% CI 5.4% to 33.2%), respectively. The 2-year cumulative incidence of relapse was 6.7% (95% CI 1.7% to 25.4%). The cumulative incidences of grade II-IV and extensive chronic graft-versus-host disease were 27% and 14%, respectively. CONCLUSIONS: For chemosensitive advanced high-risk B-cell lymphoma, the addition of (90)Y-Ibritumomab tiuxetan to a RIC regimen based on fludarabine, busulfan and antithymocyte globulin followed by allogeneic transplant is safe and highly effective. clinicaltrials.gov: NCT00607854.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Soro Antilinfocitário/uso terapêutico , Bussulfano/uso terapêutico , Linfoma de Células B/tratamento farmacológico , Vidarabina/análogos & derivados , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Intervalo Livre de Doença , Feminino , Doença Enxerto-Hospedeiro , Humanos , Linfoma de Células B/cirurgia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Estudos Prospectivos , Terapia de Salvação , Transplante de Células-Tronco , Condicionamento Pré-Transplante , Transplante Homólogo , Resultado do Tratamento , Vidarabina/uso terapêutico
12.
Eur J Clin Microbiol Infect Dis ; 31(2): 161-7, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21611869

RESUMO

Posaconazole (PCZ) is given at 200 mg three times daily as a fungal prophylaxis in neutropenic hematologic malignancy patients. A relationship between exposure, plasma concentration, and efficacy is suggested. The objectives of this prospective study were to analyze the PCZ plasma concentration in hematology adults at high risk of developing invasive fungal infections (IFIs), and factors that could have an impact on the PCZ plasma concentration. PCZ plasma concentrations were measured after 2, 7, 10, 14, and 21 days of PCZ prophylaxis. Factors such as gender, age, body weight, posology, treatment duration, mucositis, proton pump inhibitor (PPI) use, and food intake were studied. Sixty-three patients were included, with a median age of 52 years (range 17-70) and a median weight of 75 kg (range 47-150). The median PCZ plasma concentration of the 63 patients ranged from 0.42 to 0.48 mg/L. At day 2, 30% of PCZ plasma concentration were under 0.35 mg/L, and at day 7, 74% were <0.70 mg/L. PCZ plasma concentrations were not affected by gender, age, body weight, or treatment duration. We found that food intake had a high influence on PCZ plasma concentrations (p = 0.0049). PCZ was well tolerated. One patient has developed a probable IFI, probably related to a low exposure to PCZ. PCZ therapeutic drug monitoring (TDM) is essential in order to early detect patients with low concentrations, to assess the etiology of such results, and to decide on the treatment strategy to apply.


Assuntos
Antifúngicos/farmacocinética , Antifúngicos/uso terapêutico , Monitoramento de Medicamentos/métodos , Ingestão de Alimentos , Neoplasias Hematológicas/complicações , Micoses/prevenção & controle , Triazóis/farmacocinética , Triazóis/uso terapêutico , Adolescente , Adulto , Idoso , Antifúngicos/administração & dosagem , Antifúngicos/efeitos adversos , Antineoplásicos/uso terapêutico , Quimioprevenção , Feminino , Neoplasias Hematológicas/tratamento farmacológico , Humanos , Masculino , Pessoa de Meia-Idade , Triazóis/administração & dosagem , Triazóis/efeitos adversos , Adulto Jovem
13.
Bone Marrow Transplant ; 38(4): 275-84, 2006 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-16883311

RESUMO

The use of a combination of G-CSF and GM-CSF versus G-CSF alone, after cyclophosphamide (4 g/m2) was compared in two randomized phase III studies, including 120 patients. In study A, 60 patients received 5 x 2 microg/kg/day of G-CSF and GM-CSF compared to 5 mug/kg/day of G-CSF. In study B, 60 patients received 2.5 x 2 microg/kg/day G-CSF and GM-CSF compared to G-CSF alone (5 microg/kg/day). With the aim to collect at least 5 x 10(6)/kg CD34 cells in a maximum of three large volume leukapherises (LK), 123 LK were performed in study A, showing a significantly higher number of patients reaching 10 x 10(6)/kg CD34 cells (21/29 in G+GM-CSF arm vs 11/27 in G-CSF arm, P=0.00006). In study B, 109 LK were performed, with similar results (10/27 vs 15/26, P=0.003). In both the study, the total harvest of CD34 cells/kg was twofold higher in G-CSF plus GM-CSF group (18.3 x 10(6) in study A and 15.85 x 10(6) in study B) than in G-CSF group (9 x 10(6) in study A and 8.1 x 10(6) in study B), a significant difference only seen in multiple myeloma, with no significant difference in terms of mobilized myeloma cells between G-CSF and GM-CSF groups.


Assuntos
Ciclofosfamida/administração & dosagem , Fator Estimulador de Colônias de Granulócitos/administração & dosagem , Fator Estimulador de Colônias de Granulócitos e Macrófagos/administração & dosagem , Leucaférese/métodos , Adulto , Idoso , Antígenos CD34 , Quimioterapia Combinada , Feminino , Filgrastim , Humanos , Leucaférese/normas , Contagem de Leucócitos , Masculino , Pessoa de Meia-Idade , Mieloma Múltiplo/patologia , Transplante de Células-Tronco de Sangue Periférico/métodos , Proteínas Recombinantes/administração & dosagem
14.
J Agric Food Chem ; 49(11): 5646-52, 2001 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11714372

RESUMO

Some of the beneficial effects of moderate wine consumption may be related to the antioxidant properties of polyphenolic compounds containing tannins, flavonoids, and phenolic acids. Cellular actions have recently been reported and may involve the modulation of transcriptional factors such as AP-1 (activator protein-1), which controls the expression of various genes implicated in inflammation processes, cell differentiation, and proliferation. The aim of this study was to evaluate the modulation of AP-1 activity by the phenolic acids (gallic, caffeic, protocatechic, paracoumaric, sinapic, and ferulic acids) that are present in wine and to compare their modulating pathways to those of lipophilic or hydrophilic "chain-breaking" antioxidants (such as DL-alpha-tocopherol or trolox) vitamin C, nitric oxide, and reduced glutathione. AP-1 response was studied on a cell line (MTLN) derived from MCF-7 cells transfected with luciferase gene under TRE sequence control. After stimulation by phorbol 12-myristate 13-acetate (PMA; 100 nM, 6 h, 10(-7) M), luciferase activity was determined by a luminescence method in the presence of luciferine/coenzyme A solution using a luminometer (LKB 1251, Finland). Antioxidants to be tested were incubated with cells in the presence or absence of PMA. Stimulation with PMA resulted in an AP-1-mediated increase in luciferase gene expression corresponding to an 8-fold increase in luciferase activity. After stimulation by PMA, a dose-dependent inhibition of AP-1 was observed with the six phenolic acids in the 20 nM-20 microM concentration range: gallic acid > caffeic > protocatechic, paracoumaric, sinapic acids > ferulic acid. Inhibition was more pronounced with phenolic acids than with DL-alpha-tocopherol (IC(50) = 5 +/- 4.5 microM for gallic acid vs 85 +/- 11 microM for vitamin E). None of the hydrophilic antioxidants inhibited PMA-induced AP-1 activation. None of the antioxidants tested in the absence of PMA stimulation induced any activation or inhibition of AP-1. Our results suggest that phenolic acids may act directly on cell signaling via inhibition of AP-1 transcriptional activity. In addition to preventing LDL oxidation in the arterial wall, our observations indicate that phenolic acids have a cell-mediated capacity to prevent some of the processes involved in atherosclerosis in a plasma concentration range compatible with nutritional intakes.


Assuntos
Antioxidantes/farmacologia , Hidroxibenzoatos/farmacologia , Fator de Transcrição AP-1/antagonistas & inibidores , Vinho/análise , Sequência de Bases , Linhagem Celular , Primers do DNA , Humanos , Luciferases/genética , Medições Luminescentes , Acetato de Tetradecanoilforbol/farmacologia , Fator de Transcrição AP-1/metabolismo , alfa-Tocoferol/farmacologia
16.
Arch. venez. farmacol. ter ; 20(1): 80-83, 2001. graf
Artigo em Espanhol | LILACS | ID: lil-340962

RESUMO

Se realizó un estudio abierto, no controlado, multicéntrico, realizado con intención de tratar, en 60 pacientes con dorsolumbalgia mecánica, en el cual evaluó la efectividad y seguridad de nimesulide 100 mg dos veces al día, administrado durante 15 días. El tratamiento produjo un alivio significativo en los escores de dolor entre el día de inicio del tratamiento y los 5 días, con un alivio adicional importante entre los días 5 y 10, sin alivios adicionales para el día 15. El tiempo medio para la desaparición total del dolor fue de 8,5 días. La limitación funcional fue evaluada el día 0 y el día 15, obteniéndose una mejoría significativa desde el punto de vista estadístico. Se reportaron efectos adversos en 4 de los pacientes, de los cuales sólo uno ameritó la suspensión del tratamiento


Assuntos
Humanos , Masculino , Feminino , Anti-Inflamatórios não Esteroides , Dorso , Dor Lombar/terapia , Venezuela
17.
Med Clin (Barc) ; 106(15): 583-5, 1996 Apr 20.
Artigo em Espanhol | MEDLINE | ID: mdl-8656758

RESUMO

Hairy cell leukemia is a uncommon B-cell chronic lymphoproliferative disease rarely associated with autoimmune phenomena. We present a positive CD 5 case with a positive antinuclear antibodies test in the absence of any relation to any other clinical autoimmune disease syndrome and we analyse the evolutive profile of serum concentration of several factors with prognostic significance, relating to the interferon alpha-2b treatment: C reactive protein, beta 2-microglobulin and erythropoietin presented at first very high basal levels that descended progressively until the last two normalized completely; the tumor necrosis factor-alpha manifested stable with normal values during the whole study; the gamma-interferon and interleukin-6 revealed a precocious increase at the start of the treatment later returning to their basal levels. These parameters may aid to assess the response to treatment in these patients.


Assuntos
Anticorpos Antinucleares/análise , Interferon-alfa/uso terapêutico , Leucemia de Células Pilosas/imunologia , Leucemia de Células Pilosas/terapia , Idoso , Antígenos CD5/análise , Feminino , Humanos , Interferon alfa-2 , Interferon gama/sangue , Interleucina-6/sangue , Leucemia de Células Pilosas/sangue , Prognóstico , Proteínas Recombinantes
18.
Rev Med Interne ; 17(2): 150-3, 1996.
Artigo em Francês | MEDLINE | ID: mdl-8787087

RESUMO

The emergence of an autoantibody directed against factor VIII or "acquired haemophilia" is unusual. Half the time it occurs in a context of disease disrupting immunity. Chronic lymphoid leukemia seems to be an exceptional association but could not be fortuitous.


Assuntos
Autoanticorpos/análise , Fator VIII/imunologia , Leucemia Linfocítica Crônica de Células B/imunologia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Fatores de Tempo
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA