Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 90
Filtrar
1.
Eur J Cancer Care (Engl) ; 20(4): 503-7, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20477856

RESUMO

Concurrent chemoradiotherapy has become the standard of care for patients with inoperable squamous cell head and neck carcinoma. More recently, induction chemotherapy has been adopted as an approach in the management of these patients. We report the results of a phase II trial associating induction chemotherapy and concomitant chemoradiotherapy in a series of patients with inoperable squamous cell head and neck cancer. Twenty-nine patients with advanced squamous cell carcinoma ineligible for surgery were enrolled. Induction chemotherapy with docetaxel 75 mg/m(2) and cisplatin 75 mg/m(2) every 21 days was administered for two cycles. Radiotherapy followed the induction phase. During radiotherapy, docetaxel was administered weekly at the dose of 33 mg/m(2) . Primary end point of the study was feasibility of treatment. Six (18%) patients failed to conclude the treatment schedule. Although response rates in evaluable patients were very high (disease control rate >90%), toxicities were a matter of concern. The reported treatment schedule proved infeasible. However, some modifications in ancillary therapies aimed at exploiting its efficacy could make it practicable.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma/tratamento farmacológico , Carcinoma/radioterapia , Neoplasias de Cabeça e Pescoço/tratamento farmacológico , Neoplasias de Cabeça e Pescoço/radioterapia , Neoplasias de Células Escamosas/tratamento farmacológico , Neoplasias de Células Escamosas/radioterapia , Adulto , Idoso , Carcinoma de Células Escamosas , Cisplatino/administração & dosagem , Terapia Combinada/métodos , Docetaxel , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Indução de Remissão/métodos , Carcinoma de Células Escamosas de Cabeça e Pescoço , Taxoides/administração & dosagem
3.
Eur Rev Med Pharmacol Sci ; 12(2): 97-104, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18575159

RESUMO

Idiopathic pulmonary fibrosis (IPF), a disease with histological features corresponding to usual interstitial pneumonia (UIP), is a disorder of unknown cause. Not only it is the most common subtype of idiopathic interstitial pneumonias but it is also associated with the highest mortality rate. Despite a good number of studies investigating the mortality of patients with UIP the prognostic factors that have been studied have several limitations. To date it is unclear when in the course of the disease and with what modality these patients should be treated. According to the literature we subcategorized predictors of mortality into (a) baseline predictors; (b) dynamic predictors. IPF perspectives in therapy have been also analyzed. Moreover, the principal aims of this review were: (1) to analyze and to clarify the clinical utility of different prognostic factors for IPF; (2) to enable clinicians to better evaluate the eligibility criteria for lung transplantation in the clinical practice.


Assuntos
Definição da Elegibilidade , Transplante de Pulmão/estatística & dados numéricos , Fibrose Pulmonar/mortalidade , Humanos , Seleção de Pacientes , Prognóstico , Fibrose Pulmonar/patologia , Fibrose Pulmonar/cirurgia , Fatores de Risco , Taxa de Sobrevida
5.
Neoplasma ; 53(4): 333-6, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16830062

RESUMO

Systemic therapies employed in patients with metastatic renal cell carcinoma (MRCC) include chemotherapy to immunomodulatory cytokines (interleukin 2 [IL-2], interferon alpha [INFalpha]), chemoimmunotherapy, adoptive immune therapy and anti-angiogenic therapy. Despite this range of treatment alternatives, the optimal therapy for MRCC patients is far from being established. Thus, attempts with novel therapeutic approaches implementing new drug combinations are justified. We conducted a phase II evaluation of a combination of vinorelbine and IL-2, both at low doses, in 30 patients with MRCC. The rationale of the combination was to damage the tumor tissue to the extent necessary to make it more immunogenic while, at the same time, to obtain an efficient immune response through the concomitant administration of IL-2. The treatment, given in different dose combinations and administration times, resulted feasible, with no renal, neurological or hematological toxicity. The overall survival of the whole group of patients is higher than that usually observed following treatment with immunotherapies (18.2 versus 13.3 months, respectively). While the limited number of treated patients does not allow advancing conclusions on the effective activity of the adopted protocol, the results observed are encouraging.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica , Carcinoma de Células Renais/tratamento farmacológico , Interleucina-2/uso terapêutico , Neoplasias Renais/tratamento farmacológico , Vimblastina/análogos & derivados , Idoso , Carcinoma de Células Renais/patologia , Esquema de Medicação , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Fatores de Tempo , Vimblastina/uso terapêutico , Vinorelbina
6.
Chemotherapy ; 52(3): 147-50, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16636537

RESUMO

BACKGROUND: Docetaxel has a proven significant activity against breast, non-small cell lung, ovarian, head and neck, and hormone refractory prostate cancer. Preclinical pharmacokinetic studies have shown that hepatobiliary extraction is the major route of elimination. We conducted this study to elucidate the feasibility and safety of the use of docetaxel in hemodialysis patients. PATIENT AND METHODS: In a 72-year-old hormone refractory prostate cancer patient on hemodialysis for diabetic nephropathy for 3 years, a first dose (35 mg/m(2) iv) of docetaxel was completed 30 min before starting dialysis, while a second dose was administered 30 min after completion of a different hemodialysis session. Pharmacokinetic analysis was performed following both infusions. RESULTS: No apparent differences could be seen in the plasma concentration-time curves of docetaxel administered before or after dialysis. The patient experienced no significant toxicity after either administration of docetaxel. CONCLUSIONS: Docetaxel is safe in dialysis patients and does not require dose reduction. Dialysis does not remove this drug from blood.


Assuntos
Antineoplásicos Fitogênicos/farmacocinética , Neoplasias da Próstata/metabolismo , Diálise Renal , Taxoides/farmacocinética , Idoso , Antineoplásicos Fitogênicos/administração & dosagem , Cromatografia Líquida de Alta Pressão , Nefropatias Diabéticas/complicações , Nefropatias Diabéticas/terapia , Docetaxel , Esquema de Medicação , Soluções para Hemodiálise/análise , Humanos , Masculino , Neoplasias da Próstata/complicações , Taxoides/administração & dosagem
7.
Anticancer Res ; 25(6C): 4451-4, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16334125

RESUMO

BACKGROUND: For many years surgery was the cornerstone of treatment for head and neck cancers and radiotherapy was the treatment of choice in adjuvant and advanced inoperable settings. Recently, induction sequential chemotherapy followed by radiotherapy has shown good tolerability and has prolonged the median overall survival. This phase II trial explored the feasibility of the concurrent association with radiotherapy of a full-dose chemotherapy based on an original schedule of docetaxel and cisplatin. PATIENTS AND METHODS: Twenty-four patients with head and neck squamous cell carcinoma (HNSCC) were enrolled. Taxotere (docetaxel) was administered on day 1, weekly for 6 weeks. The dose was 33 mg/m2 /w. Cisplatin was administered on day 2 at the dose of 70 mg/m2. Radiotherapy delivered was 60 Gy divided in 30 administrations over 6 weeks. RESULTS AND CONCLUSION: This schedule of treatment for HNSCC proved feasible. Appropriate support treatment, however, appears to be necessary for the feasibility of this concurrent chemo-radiotherapy.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/radioterapia , Neoplasias de Cabeça e Pescoço/tratamento farmacológico , Neoplasias de Cabeça e Pescoço/radioterapia , Idoso , Anemia/induzido quimicamente , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Cisplatino/administração & dosagem , Cisplatino/efeitos adversos , Terapia Combinada , Docetaxel , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neutropenia/induzido quimicamente , Taxoides/administração & dosagem , Taxoides/efeitos adversos
8.
J Exp Clin Cancer Res ; 24(3): 355-61, 2005 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16270521

RESUMO

The aim of the present study was the evaluation of the diagnostic value of 99mTc-sestamibi (MIBI) in the detection of bone marrow involvement in patients suffering from multiple myeloma (MM) and its possible role in the follow-up. Between 1998 and 2003, 68 patients with MM and 42 pts with monoclonal gammopathy of undetermined significance (MGUS) were consecutively enrolled in this study. 51/68 MM patients had active disease (AD), 11/62 were in complete remission (CR) and 6/68 in partial remission (PR) after chemotherapy. 18 patients with MM repeated a 99mTc-MIBI scintigraphic study at least 2 months after high-dose chemotherapy. All the scans were scored semi quantitatively according to extension and intensity of tracer uptake. All MGUS pts had a negative 99mTc-MIBI. As far as the MM pts are concerned, 54/68 (49%) pts (48 with AD, 5 with PR and 1 with CR) had a positive 99mTc-MIBI scan, while the 99mTc-MIBI scan was negative in 14/68 pts (10 with CR, 1 with PR and 3 with AD). The overall sensitivity of the 99mTc-MIBI scintigraphy was 92%; specificity was 96%. In the follow up of the pts treated with chemotherapy 99mTc-MIBI closely paralleled the activity of myeloma bone disease. In conclusion, these results indicate that 99mTc-MIBI scintigraphy closely reflects myeloma disease activity in the bone marrow, and that a negative 99mTc-MIBI scan in patients with suspected MM clearly, though not absolutely, indicates absence of disease or clinical remission. The results of this study suggest a clear diagnostic value of 99mTc-MIBI scintigraphy in patients with MM and its potential role during the follow-up for the monitoring of MM bone disease.


Assuntos
Mieloma Múltiplo/diagnóstico por imagem , Tecnécio Tc 99m Sestamibi , Adulto , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/uso terapêutico , Terapia Combinada , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mieloma Múltiplo/patologia , Mieloma Múltiplo/terapia , Estadiamento de Neoplasias , Cintilografia , Indução de Remissão , Transplante de Células-Tronco
9.
Suppl Tumori ; 4(3): S215, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16437998

RESUMO

Usually head and neck cancer is treated with combined therapy, applying surgery, if possible, and then radiotherapy and chemotherapy in a sequential or concomitant way. Sequential approach seems to be preferred, because of the high toxicity rate of concomitant therapy. Platinum compounds and 5-fluorouracil are the standard drugs, but new drugs are entering therapeutic arena: gemcitabine and taxanes are the most promising ones. The efficacy of these drugs, especially in association with radiotherapy, must be assessed; moreover it is essential to ascertain how to associate these drugs to radiotherapy and to evaluate drug toxicity when combined with the latter. End point of the study here presented is a preliminar assessment of toxicity and feasibility of concurrent radio-chemoterapy with docetaxel and cisplatinum in patients with head and neck cancer. The number of enrolled patients and the relatively short time of follow up do not allow to evaluate treatment efficacy.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias de Cabeça e Pescoço/tratamento farmacológico , Neoplasias de Cabeça e Pescoço/radioterapia , Recidiva Local de Neoplasia/tratamento farmacológico , Recidiva Local de Neoplasia/radioterapia , Idoso , Antineoplásicos Fitogênicos/administração & dosagem , Cisplatino/administração & dosagem , Terapia Combinada , Docetaxel , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Taxoides/administração & dosagem
10.
J Exp Clin Cancer Res ; 21(4): 481-7, 2002 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-12636093

RESUMO

Forty-three consecutive patients with de novo and untreated non M3 AML aged 60 or less entered the study. The mean age of patients was 50 (range 15-60). The induction regimen (FLAG-Ida) included fludarabine (30 mg/sqm), Ara-C (2 g/sqm) on days 1-5, and idarubicin (10 mg/sqm) on days 1, 3, 5. G-CSF (300 mcg/day) was administered s.c. 12 hours before starting fludarabine and was continued for five days. HDT with stem cell rescue was planned for all patients in first CR after one course of high dose Ara-C (HDAC) consolidation and in good clinical conditions. Forty-two (98%) patients were evaluable for response. One patient died during induction (2%). CR was achieved in 35 patients (82%). Twenty-three patients, 66% of those achieving CR, underwent autologous (N = 17) or allogeneic (N = 6) transplantation. With a median follow up of 24 months, the average median duration of CR is 17 months (range 3-66) and the median survival is 20 months (range 1-83). Overall the 5 year projected disease free survival (DFS) and overall survival (OS) were 37% and 43%, respectively. Among patients who underwent stem cell transplantation DFS and OS were 53% and 69%, respectively. The median time to PMN recovery (> 0.5 x 10(9)/l) was 17 days (range 10-28) and 50 x 10(9)/l platelets were reached at a median of 17 days (12-38). In conclusion FLAG-Ida regimen is effective, low toxic and improves feasibility of stem cell transplant.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Fator Estimulador de Colônias de Granulócitos/uso terapêutico , Leucemia Mieloide Aguda/terapia , Síndromes Mielodisplásicas/terapia , Transplante de Células-Tronco , Vidarabina/análogos & derivados , Adolescente , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Terapia Combinada , Citarabina/administração & dosagem , Feminino , Fator Estimulador de Colônias de Granulócitos/efeitos adversos , Humanos , Idarubicina/administração & dosagem , Cariotipagem , Leucemia Mieloide Aguda/tratamento farmacológico , Leucemia Mieloide Aguda/genética , Leucemia Mieloide Aguda/mortalidade , Masculino , Pessoa de Meia-Idade , Síndromes Mielodisplásicas/tratamento farmacológico , Síndromes Mielodisplásicas/genética , Seleção de Pacientes , Proteínas Recombinantes , Estudos Retrospectivos , Análise de Sobrevida , Resultado do Tratamento , Vidarabina/administração & dosagem
11.
J Altern Complement Med ; 7(4): 337-43, 2001 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-11558776

RESUMO

CONTEXT: The recent rapid increase in demand for and use of unconventional medicine requires an adequate medical education. In the United States, 64% of medical schools offer undergraduate courses. No information is available about similar courses at European universities. OBJECTIVES: To document the incidence of educational courses on unconventional medicine offered by the European universities and their topic content. DESIGN: Mail survey, which consisted of two questionnaires and was conducted in 1999 (January-June). The first questionnaire was sent to the universities' Rectorats, the second one to the faculties or lecturers indicated by the replies to the first questionnaire. PARTICIPANTS: The Universities listed by the Confederation of European Union Rectors' Conference. MAIN OUTCOME MEASURES: Courses offered at European Universities, both at medical faculties and at other faculties. RESULTS: Five hundred and fifty (550) universities were contacted. Replies were received from 326 (59%); 141 have a faculty of medicine and 107 (76%) of them replied. We also received answers from 29 faculties of health sciences. In addition we received 190 (50%) answers from 380 other miscellaneous universities. Courses on unconventional medicine were offered by 43 (40%) medical schools, 21 (72%) health sciences faculties, and by 15 (8%) other faculties. Topics covered encompassed a wide range of techniques (33), from homeopathy to shamanism. CONCLUSIONS: Unconventional medicine courses are widely represented at European universities. They cover a wide range of therapies. Many of them are used clinically. Research work is underway at several faculties.


Assuntos
Terapias Complementares/educação , Terapias Complementares/estatística & dados numéricos , Universidades/estatística & dados numéricos , Terapias Complementares/normas , Currículo/estatística & dados numéricos , União Europeia , Humanos , Prevalência , Inquéritos e Questionários , Ensino/estatística & dados numéricos
12.
Leuk Lymphoma ; 40(3-4): 305-13, 2001 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-11426552

RESUMO

Acute myeloid leukaemias (AML) evolving from a myelodysplastic syndrome (MDS) or secondary to chemoradiotherapy frequently display unfavorable biologic characteristics. This may explain the lower remission rate obtained with conventional chemotherapy. Recently, the association of Fludarabine with intermediate dose Ara-C has produced interesting results particularly in high risk AML patients. Here, we report on 42 secondary AML patients treated with a combination of Fludarabine, intermediate dose Ara-C, G-CSF with or without an antracycline (FLANG, FLAG-IDA or FLAG). Overall, complete remissions (CR) were documented in 14 patients (33%) and partial responses (PR) in 12 (29%), while 10 patients proved resistant (24%). Six patients (14%) died early. The presence of a prognostically unfavorable karyotype had a negative impact on the CR rate (20% compared to 50% for patients with an intermediate prognosis karyotype, p 0.05). Patients treated with FLAG, FLANG and FLAG-IDA had similar CR rates. At the time of this analysis, after a mean follow-up of 12 months, the mean duration of CR is 16 months (range 3-66) and the mean survival is 11 months (range 1-67). The median time to granulocyte recovery (neutrophils > 0.5 x 10(9)/l) was 20 days (range 12-39) and 50 x 10(9)/l platelets were reached at a median of 26 days (range 9-56). Taken together, these Fludarabine containing regimens proved to be an effective and tolerable treatment for patients with secondary AML. Patients above 70 years of age may also benefit from this therapy, however the problem of treating patients with adverse chromosomal abnormalities still remains unresolved.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Leucemia Mieloide/tratamento farmacológico , Síndromes Mielodisplásicas/patologia , Vidarabina/análogos & derivados , Vidarabina/administração & dosagem , Doença Aguda , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/toxicidade , Estudos de Coortes , Citarabina/administração & dosagem , Citarabina/toxicidade , Feminino , Fator Estimulador de Colônias de Granulócitos/administração & dosagem , Fator Estimulador de Colônias de Granulócitos/toxicidade , Humanos , Leucemia Mieloide/complicações , Leucemia Mieloide/mortalidade , Masculino , Pessoa de Meia-Idade , Segunda Neoplasia Primária/complicações , Segunda Neoplasia Primária/tratamento farmacológico , Segunda Neoplasia Primária/mortalidade , Indução de Remissão , Taxa de Sobrevida , Vidarabina/toxicidade
13.
Haematologica ; 86(1): 78-84, 2001 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-11146575

RESUMO

BACKGROUND AND OBJECTIVES: Technetium-99m 2-methoxy-isobutyl-isonitrile ((99m)Tc-sestamibi) has recently been proposed as a potential tracer in patients with multiple myeloma (MM), as its increased uptake in the bone marrow has been reported as indicator of myeloma activity. We evaluated the role of (99m)Tc-sestamibi scintigraphy in the detection of myeloma bone disease in MM and related gammopathies, and also assessed its relationship with clinical status and stage of the disease, focusing in particular on the early follow-up of a small series of MM patients treated with high-dose therapy. DESIGN AND METHODS: Forty-six consecutive patients affected by MM or monoclonal gammopathy of undefined significance (MGUS) were studied by whole body scans obtained 20 minutes after administration of 740 MBq of (99m)Tc-sestamibi. A semiquantitative uptake score was used and scintigraphic findings were correlated with clinical and laboratory data. RESULTS: All the MGUS patients showed a negative (99m)Tc-sestamibi scan. Among the 32 MM patients (25 with active disease and 7 in clinical remission) 24 showed a positive scan, while 8 presented only a physiologic uptake of the tracer. The uptake score correlated significantly with all the most relevant clinical variables. In the follow-up of 8 MM patients treated with high-dose chemotherapy (99m)Tc-sestamibi closely paralleled the activity of myeloma bone disease. Comparison with X-ray skeletal survey showed discordant results in 14 out of the overall 56 scans obtained (27%), with 10 cases of negative (99m)Tc-sestamibi scans but lytic bone lesions revealed by X-ray (7 of them were in clinical remission), and 4 negative X-ray surveys in patients with positive (99m)Tc-sestamibi scans. Overall sensitivity and specificity of (99m)Tc-sestamibi scintigraphy in detecting myeloma bone disease were 90% and 88%, respectively. INTERPRETATION AND CONCLUSIONS: This study provides additional evidence indicating that (99m)Tc-sestamibi scintigraphy closely reflects myeloma disease activity in bone marrow, with very high sensitivity and specificity. (99m)Tc-sestamibi scintigraphy is therefore suggested as a reliable new tool for the staging and follow-up of myeloma bone disease.


Assuntos
Mieloma Múltiplo/diagnóstico por imagem , Tecnécio Tc 99m Sestamibi , Adulto , Idoso , Idoso de 80 Anos ou mais , Medula Óssea/diagnóstico por imagem , Medula Óssea/patologia , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/patologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Paraproteinemias/diagnóstico por imagem , Cintilografia
14.
Int J Oncol ; 17(5): 1007-13, 2000 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11029505

RESUMO

The purpose of the present study was to evaluate the feasibility and the efficacy of employing a high-dose chemotherapy (HDT) regimen with tandem peripheral blood progenitor cells (PBPC) supported transplantation in the initial treatment of aggressive non-Hodgkin's lymphoma (NHL). HDT was preceded by a standard course of conventional dose chemotherapy in 17 out of the 25 patients treated, while in 8 cases it was delivered after only one or two cycles. HDT was a three-step procedure which included high-dose (6-7 g/m2) cyclophosphamide (CY) supported by haematopoietic growth factors, the first myeloablative course with mitoxantrone (NOV) 60, 75 or 90 mg/m2 plus melphalan (L-PAM) 140-180 mg/m2 with haematopoietic rescue, and the second myeloablative course with etoposide (VP) and carboplatin (CARBO) given at 1.5 g/m2 each with haematopoietic rescue. PBPC were collected after CY administration. Twenty-two patients (88%) completed the HDT, haematological reconstitution was rapid and complete at each step and there were no toxic deaths. The activity of the treatment was high with a CR rate over 90% in the entire patient population. The 2-year overall survival (OS) and failure-free survival (FFS) rates of patients in both Age-Adjusted International Prognostic Index (A-AIPI) groups 2 and 3 are 79% and the disease-free survival (DFS) rate for the CRs is 85%. In A-AIPI group 1 the 2-year OS and FFS rates are both 91%.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Transplante de Células-Tronco Hematopoéticas , Linfoma não Hodgkin/terapia , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Carboplatina/administração & dosagem , Terapia Combinada , Ciclofosfamida/administração & dosagem , Intervalo Livre de Doença , Etoposídeo/administração & dosagem , Estudos de Viabilidade , Feminino , Fatores de Crescimento de Células Hematopoéticas/uso terapêutico , Humanos , Tábuas de Vida , Linfoma não Hodgkin/tratamento farmacológico , Linfoma não Hodgkin/mortalidade , Linfoma não Hodgkin/patologia , Linfoma não Hodgkin/radioterapia , Masculino , Melfalan/administração & dosagem , Pessoa de Meia-Idade , Mitoxantrona/administração & dosagem , Indução de Remissão , Terapia de Salvação , Análise de Sobrevida , Taxa de Sobrevida , Resultado do Tratamento
16.
Anticancer Res ; 19(1B): 879-84, 1999.
Artigo em Inglês | MEDLINE | ID: mdl-10216510

RESUMO

The aims of this study were to evaluate the pharmacokinetics, tolerability and hematopoietic toxicity of mitoxantrone in elderly women. Thirteen patients with advanced breast cancer, median age of 73 years, received escalating doses of mitoxantrone 8, 10, 12 and 14 mg/m2 on day 1, q 21. There was a linear relationship between the mitoxantrone dose administered and the mitoxantrone exposure (AUC) in plasma (r = 0.856, pc0.001). After 4 courses of treatment, a significant decrease in bone marrow cellularity (p = 0.0067), and HPC content (BFU-E p = 0.0077) was observed. A remarkable, though not statistically significant decrease in circulating HPCs was observed after 4 courses and was still present 8-12 months after the termination of treatment. Therapy with mitoxantrone in elderly women was well tolerated at the dose of 12 mg/m2 for four courses. The significant hematological toxicity observed in marrow cellularity and HPC content warrant further studies.


Assuntos
Células da Medula Óssea/efeitos dos fármacos , Neoplasias da Mama/tratamento farmacológico , Células-Tronco Hematopoéticas/efeitos dos fármacos , Mitoxantrona/efeitos adversos , Mitoxantrona/farmacocinética , Idoso , Idoso de 80 Anos ou mais , Área Sob a Curva , Células da Medula Óssea/patologia , Ensaio de Unidades Formadoras de Colônias , Relação Dose-Resposta a Droga , Feminino , Humanos
17.
Cancer Genet Cytogenet ; 106(2): 110-5, 1998 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-9797774

RESUMO

Cytogenetic analysis of 72 consecutive de novo myelodysplastic syndrome patients revealed monosomy 7 in 12 cases. In 4 of these cases, the -7 was the only abnormality, whereas the remaining 8 cases showed additional chromosomal aberrations. Fluorescence in situ hybridization (FISH) utilizing chromosome 7 alpha-satellite and painting probes and other specific probes, when necessary, provided evidence of unusual and unsuspected structural rearrangements involving chromosome 7. FISH analysis showed that the small fragment found in one patient and the ring found in each of two other patients were chromosome 7-derived rings. FISH also revealed the insertion of chromosome 7 sequences into autosomes in three other patients and unusual translocations in the remaining two patients. By comparing the results obtained by using banding techniques to those obtained by using the FISH technique, we deduced the involvement of chromosome 7 with partial deletion of the short arm in all eight examined patients. Our study confirms the ability of FISH to detect chromosomal aberrations that would otherwise not be identified and the tendency of chromosome 7 to be involved in many different rearrangements. From a clinical point of view, we confirm that patients affected by myelodysplastic syndromes with complex karyotypes involving chromosome 7 do not respond to treatment and have a poor prognosis.


Assuntos
Anemia Refratária com Excesso de Blastos/genética , Aberrações Cromossômicas , Cromossomos Humanos Par 7 , Síndromes Mielodisplásicas/genética , Bandeamento Cromossômico , Humanos , Hibridização in Situ Fluorescente , Cariotipagem
18.
Minerva Cardioangiol ; 46(7-8): 241-53, 1998.
Artigo em Italiano | MEDLINE | ID: mdl-9973787

RESUMO

Budd-Chiari syndrome is a rather unusual clinical entity; among others, myeloproliferative disorders not infrequently are reported as a cause of this syndrome. In the past prognosis of Budd-Chiari syndrome was usually very poor. However, in recent years treatment with fibrinolytic agents has proved to be often successful in Budd-Chiari syndrome, as well as in other thrombotic disorders. In particular, r-TPA has appeared to be effective, due to its thrombospecificity. Three cases of Budd-Chiari's syndrome associated with myeloproliferative disorders are described, in which r-TPA administration, together with treatment of underlying disease, resulted in a complete recanalization of sovrahepatic veins. r-TPA, due to its thrombospecificity, has been shown to be more effective than other thrombolytic agents; its use is associated with a lower number of hemorrhagic events and it may be repeated in the case of uncompleted response.


Assuntos
Síndrome de Budd-Chiari/etiologia , Fibrinolíticos/uso terapêutico , Transtornos Mieloproliferativos/complicações , Ativador de Plasminogênio Tecidual/uso terapêutico , Síndrome de Budd-Chiari/tratamento farmacológico , Humanos , Masculino , Pessoa de Meia-Idade , Terapia Trombolítica
19.
Eur Respir J ; 10(4): 846-50, 1997 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-9150323

RESUMO

Although inflammatory changes are found throughout the airways of patients with chronic bronchitis, the mechanisms of the pathogenesis of chronic bronchitis are still unclear. The aim of this study was to investigate airways inflammation in patients with and without an exacerbation of bronchitis. Thirteen chronic bronchitic patients and nine normal subjects were studied. Eight of the patients were studied under baseline conditions (B), and five during an exacerbation of bronchitis (E). Bronchoscopy and bronchoalveolar lavage (BAL) with cytological analysis were performed, and the levels of granulocyte/macrophage colony-stimulating factor (GM-CSF) were determined in sera and in BAL supernatants by a solid phase enzyme immunoassay. Compared with patients under baseline conditions, chronic bronchitic patients with an exacerbation had increased numbers of BAL neutrophils (10+/-3 and 83+/-18x10(3) cells x mL(-1), respectively; p<0.0001) and of BAL eosinophils (1.9+/-0.5 and 6.7/-1.9x10(3) cells x mL(-1), respectively; p=0.014). Patients with chronic bronchitis, as a whole, had significantly increased levels of BAL GM-CSF compared to control subjects (36+/-5 and 19+/-4 pg x mL(-1), respectively; p=0.035), and similar levels of serum GM-CSF. Serum levels of GM-CSF were markedly increased in chronic bronchitic patients with an exacerbation, as compared with patients under baseline conditions (1.4+/-0.4 and 13+/-1 pg x mL(-1), respectively; p <0.0001). BAL levels of GM-CSF were also increased in chronic bronchitic patients with an exacerbation (25+/-5 and 54+/-8 pg x mL(-1), respectively; p=0.009). During exacerbations of chronic bronchitis there are changes in the cell populations in bronchoalveolar lavage of patients consistent with a recruitment of polymorphonuclear leucocytes in the airway lumen. The increased levels of granulocyte/macrophage colony-stimulating factor might suggest a role for this cytokine in the inflammatory processes of chronic bronchitis.


Assuntos
Bronquite/fisiopatologia , Líquido da Lavagem Broncoalveolar/citologia , Fator Estimulador de Colônias de Granulócitos e Macrófagos/biossíntese , Granulócitos/metabolismo , Adulto , Idoso , Broncoscopia , Doença Crônica , Feminino , Fator Estimulador de Colônias de Granulócitos e Macrófagos/análise , Humanos , Técnicas Imunoenzimáticas , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Recidiva
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...