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OBJECTIVE: - The purpose of the guidelines national committee ccAFU was to propose updated french guidelines for prostate cancer. METHODS: - A Medline search was achieved between 2018 and 2020, as regards diagnosis, options of treatment and follow-up of prostate cancer (PCA), and to evaluate the different references specifying their levels of evidence. RESULTS: - The guidelines outline the genetics, epidemiology and diagnosis of prostate cancer, as well as the concepts of screening and early detection. MRI, the gold standard imaging test for localized cancer, is indicated before prostate biopsies are performed. The therapeutic methods are detailed and indicated according to the clinical situation. Active surveillance is a reference therapeutic option for low-risk tumours with a low evolutionary risk. Early salvage radiotherapy is indicated in case of biological recurrence after radical prostatectomy. Androgen deprivation therapy (ADT) remains the backbone therapy in the metastatic stage. Docetaxel in combination with ADT improves overall first-line survival in synchronous metastatic prostate cancer. In this situation, the combination of ADT with abiraterone is also a standard of care regardless of tumor volume. Recent data indicate that ADT should be indicated with a new generation of hormone therapy (Apalutamide or Enzalutamide) in metastatic synchronous or metachronous patients, regardless of tumour volume. Local treatment of prostate cancer with radiotherapy improves survival in synchronous oligometastatic patients. Targeted treatment of metastases is being evaluated. In patients with castration-resistant prostate cancer (CRPC), new therapies that have emerged in recent years help to better control tumor progression and improve survival. CONCLUSION: - These updated french guidelines will contribute to increase the level of urological care for the diagnosis and treatment for prostate cancer.
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Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/terapia , Protocolos Clínicos , Árvores de Decisões , Humanos , MasculinoRESUMO
The original version of this article, published on 04 June 2018, unfortunately contained a mistake.
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INTRODUCTION: Dermatomyositis (DM) is an idiopathic inflammatory myopathy involving severe debilitation in need of diagnostics. We evaluated the proximal lower extremity musculature with diffusion tensor imaging (DTI), intravoxel incoherent motion (IVIM) and dynamic DTI in DM patients and controls and compared with standard clinical workup. METHODS: In this IRB-approved, HIPAA-compliant study with written informed consent, anatomical, Dixon fat/water and diffusion imaging were collected in bilateral thigh MRI of 22 controls and 27 DM patients in a 3T scanner. Compartments were scored on T1/T2 scales. Single voxel dynamic DTI metrics in quadriceps before and after 3-min leg exercise were measured. Spearman rank correlation and mixed model analysis of variance/covariance (ANOVA/ANCOVA) were used to correlate with T1 and T2 scores and to compare patients with controls. RESULTS: DM patients showed significantly lower pseudo-diffusion and volume in quadriceps than controls. All subjects showed significant correlation between T1 score and signal-weighted fat fraction; tissue diffusion and pseudo-diffusion varied significantly with T1 and T2 score in patients. Radial and mean diffusion exercise response in patients was significantly higher than controls. CONCLUSION: Static and dynamic diffusion imaging metrics show correlation with conventional imaging scores, reveal spatial heterogeneity, and provide means to differentiate dermatomyositis patients from controls. KEY POINTS: ⢠Diffusion imaging shows regional differences between thigh muscles of dermatomyositis patients and controls. ⢠Signal-weighted fat fraction and diffusion metrics correlate with T1/T2 scores of disease severity. ⢠Dermatomyositis patients show significantly higher radial diffusion exercise response than controls.
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Dermatomiosite/diagnóstico , Imagem de Tensor de Difusão/métodos , Exercício Físico/fisiologia , Músculo Esquelético/diagnóstico por imagem , Adulto , Idoso , Dermatomiosite/fisiopatologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Músculo Esquelético/fisiopatologia , Reprodutibilidade dos Testes , Coxa da Perna , Adulto JovemRESUMO
The concept of quaternary prevention, resulting from a reflection on the doctor-patient relationship, is presented as a renewal of the ageold ethical requirement: first, a doctor must not harm; second, the doctor must control himself/herself. The origin of the concept, its endorsement by the World Organization of Family Doctors (WONCA) and the European Union of General Practitioners (UEMO), its dissemination, and the debates to which it has given rise, are presented by a panel of authors from 12 countries and 3 continents. This collective text deals more specifically with the ethics of prevention, the importance of teaching Quaternary prevention and Evidence Based Medicine, the social and political implications of the concept of quaternary prevention, and its anthropological dimensions.
Le concept de prévention quaternaire, issu d'une réflexion sur la relation médecin-patient, est présenté d'une part comme un renouvellement d'une exigence éthique séculaire ; d'abord ne pas nuire et d'autre part comme un plaidoyer pour un autocontrôle du médecin. L'origine du concept, son approbation par l'Organisation Mondiale des Médecins de Famille (WONCA) et l'Union Européenne des Médecins Omnipraticiens (UEMO), sa diffusion et les débats auxquels il a donné lieu, sont présentés par un panel d'auteurs de 12 pays et trois continents. Ce texte collectif traite plus spécifiquement de l'éthique de la prévention, de l'importance de l'enseignement de la prévention quaternaire et de la médecine factuelle, des implications sociales et politiques du concept de prévention quaternaire et de ses dimensions anthropologiques.
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Serviços Preventivos de Saúde , Antropologia , Humanos , Política , Serviços Preventivos de Saúde/ética , Fatores SociológicosRESUMO
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). Cet article est retiré de la publication à la demande des auteurs car ils ont apporté des modifications significatives sur des points scientifiques après la publication de la première version des recommandations. Le nouvel article est disponible à cette adresse: DOI:10.1016/j.purol.2019.01.007. C'est cette nouvelle version qui doit être utilisée pour citer l'article. This article has been retracted at the request of the authors, as it is not based on the definitive version of the text because some scientific data has been corrected since the first issue was published. The replacement has been published at the DOI:10.1016/j.purol.2019.01.007. That newer version of the text should be used when citing the article.
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Oncologia/normas , Neoplasias da Próstata/terapia , França , Humanos , Masculino , Oncologia/organização & administração , Oncologia/tendências , Padrões de Prática Médica/normas , Padrões de Prática Médica/tendências , Sociedades Médicas/organização & administração , Sociedades Médicas/normasRESUMO
OBJECTIVE: The purpose of the guidelines national committee ccAFU was to propose updated French guidelines for prostate cancer. METHODS: A Medline search was achieved between 2016 and 2018, as regards diagnosis, options of treatment and follow-up of prostate cancer, and to evaluate the different references specifying their levels of evidence. RESULTS: Epidemiology, classification, staging systems, diagnostic evaluation of prostate cancer are reported. Disease management options are detailed. Recommandations are reported according to the different clinical situations. Active surveillance is a major option in low risk PCa. Radical prostatectomy remains a standard of care of localized PCa. The three-dimensional conformal radiotherapy is the technical standard. A dose of≥76Gy is recommended. Moderate hypofractionation provides short-term biochemical control comparable to conventional fractionation. In case of intermediate risk PCa, radiotherapy can be combined with short-term androgen deprivation therapy (ADT). In case of high-risk disease, long-term ADT remains the standard of care. ADT is the backbone therapy of metastatic disease. In men with metastases at first presentation, upfront chemotherapy combined with ADT should be considered as a standard. In this situation, the combination of ADT and abiraterone acetate also becomes a new standard. In case of metastatic castration-resistant PCa (mCRPC), new hormonal treatments and chemotherapy provide a better control of tumor progression and increase survival. CONCLUSION: These updated French guidelines will contribute to increase the level of urological care for the diagnosis and treatment for prostate cancer.
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The purpose of this study was to evaluate the frequency of osteoporosis (OP) in patients with Gaucher disease (GD) in Argentina. GD patients from 28 centers were consecutively included from April 2012 to 2014. Bone mineral density (BMD) was determined by dual X-ray absorptiometry in the lumbar spine and the femoral neck or the total proximal femur for patients ≥20 yr of age, and by whole-body scan in the lumbar spine in patients <20 yr of age. In children, mineral density was calculated using the chronological age and Z height. OP diagnosis was determined following adult and pediatric official position of the International Society for Clinical Densitometry. A total of 116 patients were included, of which 62 (53.5%) were women. The median age was 25.8 yr. All patients received enzyme replacement therapy, with a median time of 9.4 yr. Normal BMD was found in 89 patients (76.7%), whereas low bone mass (LBM) or osteopenia was found in 15 patients (13%) and OP in 12 patients (10.3%). The analysis of the pediatric population revealed that 4 patients (9.3%) had LBM and 3 (7%) had OP (Z-score ≤ -2 + fractures height-adjusted by Z), whereas in the adult population (n = 73), 11 patients (15%) had LBM or osteopenia and 9 (12.3%) had OP. Bone marrow infiltration and the presence of fractures were significantly correlated with the presence of OP (p = 0.04 and <0.001, respectively). This is the first study in Argentina and in the region describing the frequency of OP or LBM in GD patients treated with imiglucerase using the official position of the International Society for Clinical Densitometry.
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Absorciometria de Fóton , Doença de Gaucher/complicações , Osteoporose/complicações , Osteoporose/diagnóstico por imagem , Absorciometria de Fóton/métodos , Adolescente , Adulto , Idoso , Argentina/epidemiologia , Densidade Óssea , Doenças Ósseas Metabólicas/complicações , Doenças Ósseas Metabólicas/diagnóstico por imagem , Doenças Ósseas Metabólicas/epidemiologia , Criança , Feminino , Colo do Fêmur/diagnóstico por imagem , Doença de Gaucher/epidemiologia , Humanos , Vértebras Lombares/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Osteoporose/epidemiologia , Adulto JovemRESUMO
OBJECTIVES: The purpose of the guidelines national committee CCAFU was to propose updated french guidelines for localized and metastatic prostate cancer (PCa). METHODS: A Medline search was achieved between 2013 and 2016, as regards diagnosis, options of treatment and follow-up of PCa, to evaluate different references with levels of evidence. RESULTS: Epidemiology, classification, staging systems, diagnostic evaluation are reported. Disease management options are detailed. Recommandations are reported according to the different clinical situations. Active surveillance is a major option in low risk PCa. Radical prostatectomy remains a standard of care of localized PCa. The three-dimensional conformal radiotherapy is the technical standard. A dose of > 74Gy is recommended. Moderate hypofractionation provides short-term biochemical control comparable to conventional fractionation. In case of intermediate risk PCa, radiotherapy can be combined with short-term androgen deprivation therapy (ADT). In case of high risk disease, long-term ADT remains the standard of care. ADT is the backbone therapy of metastatic disease. In men with metastases at first presentation, upfront chemotherapy combined with ADT should be considered as a new standard. In case of metastatic castration-resistant PCa (mCRPC), new hormonal treatments and chemotherapy provide a better control of tumor progression and increase survival. CONCLUSIONS: These updated french guidelines will contribute to increase the level of urological care for the diagnosis and treatment for prostate cancer. © 2016 Elsevier Masson SAS. All rights reserved.
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Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/terapia , Humanos , MasculinoRESUMO
OBJECTIVES: Multiparametric magnetic resonance imaging (mp-MRI) and Tomography with Emission of Positons are increasingly used in prostate cancer. MATERIALS AND METHOD: A systematic review of the scientific literature was performed in the Medline database (PubMed), using different associations of the following keywords: MRI, PET MRI, prostate cancer. RESULTS: Accuracy in the detection of prostate cancer is improved by the combined use of standard T2-weighted MR imaging and advanced functional MR imaging techniques such as diffusion-weighted imaging and dynamic contrast-enhanced imaging. Multiparametric MR imaging provides the highest accuracy in detection, localization, and staging of prostate cancer. This accurate assessment is a prerequisite for optimal clinical management and therapy selection. Another recent advancement in the field is MR imaging guidance for targeted prostate biopsy, which is an alternative to the current standard of transrectal ultrasonography-guided systematic biopsy. Prostate MRI plays also an important role in tumor detection when there is clinical or biochemical suspicion of residual or recurrent disease after treatment. The emergence of new technologies such as Tomography with Emission of Positons (TEP) after injection of 18F-choline, allows to improve the staging of prostate cancer (nodes status, sentinel node and occult metastases) and thus to change the management, especially when relapse. CONCLUSION: The first results with modern imaging are already very promising, and numerous prospects are expected, either by improving technologies (parametric fusion of PET and MRI) or the appearance of new tracers more sensitive and more specific than the choline. Bone scan still retains an important place especially since its realization is now coupled with a tomographic study merged with a low dose scanner, thereby remarkably improving its diagnostic performance.
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Imageamento por Ressonância Magnética , Tomografia por Emissão de Pósitrons , Neoplasias da Próstata/diagnóstico , Humanos , Masculino , Recidiva Local de Neoplasia/terapia , Neoplasias da Próstata/terapiaRESUMO
PET with (18)F-Fluorocholine has authorization for the diagnosis of bone metastases. There are no limitations to the realization of this exam but androgen deprivation treatment should not be initiated or modified before performing TEP-choline. Some studies have shown a good correlation between choline uptake within the prostate and the tumor, if the size is greater than 5 mm; this exam is interesting in case of negative biopsy. In the initial staging of high-risk prostate cancer, metastatic nodes could be detected if there are more than 5 mm, especially those localized outside the lymphadenectomy area. TEP-choline is the most efficient exam that could detect intra-medullary bone metastases. It could realize the staging N and M in one procedure, and it could replace conventional imaging exams to detect lesions at an early stage. In the evaluation of recurrent disease, TEP-choline is able to detect the site of relapse--local, pelvic nodal or bone metastases--from a threshold of 1 ng/mL, less if the velocity value is greater than 1 ng/mL per year or the doubling time less than 6 months. For low PSA value, (around 5 ng/mL), relapse is usually isolated, either be local or nodal or metastatic. TEP-choline could be carried out in a first intention to consider a local salvage treatment. Bladder accumulation of choline can hide local small volume recurrence: overcome this drawback by the administration of Furosemide. In case of high-level PSA, Standard examinations (scintigraphy, CT ) are sufficient to detect the site of relapse.
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Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/secundário , Colina/análogos & derivados , Radioisótopos de Flúor , Tomografia por Emissão de Pósitrons , Neoplasias da Próstata/patologia , Humanos , Masculino , Tomografia por Emissão de Pósitrons/métodosRESUMO
AIM: To describe drugs used in the non-hormonal treatment of metastatic prostate cancer. MATERIAL: Bibliographical search was performed from the database Medline (National Library of Medicine, PubMed) and websites of the HAS and the ANSM. The search was focused on the characteristics, the mode of action, the efficiency and the side effects of the various drugs concerned. RESULTS: The metabolic radiotherapy although under-used for this indication, kept a place at the beginning of the disease. Radium-223 chloride seems to have to occupy an important place in the coming years. The chemotherapy, the only recourse until very recently in the castration-resistant prostate cancer, must redefine its place partially. The denosumab provide an interesting alternative to bisphosphonates. CONCLUSION: The non-hormonal treatment of the metastatic disease of the prostate cancer is changing rapidly with the emergence of new molecules. Urologist must know perfectly these new drugs.
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Antineoplásicos/uso terapêutico , Neoplasias da Próstata/terapia , Anticorpos Monoclonais Humanizados/uso terapêutico , Antineoplásicos/economia , Antineoplásicos/farmacologia , Conservadores da Densidade Óssea/uso terapêutico , Cisplatino/economia , Cisplatino/farmacologia , Cisplatino/uso terapêutico , Denosumab , Docetaxel , Etoposídeo/economia , Etoposídeo/farmacologia , Etoposídeo/uso terapêutico , Humanos , Masculino , Mitoxantrona/economia , Mitoxantrona/farmacologia , Mitoxantrona/uso terapêutico , Compostos Organometálicos/economia , Compostos Organometálicos/farmacologia , Compostos Organometálicos/uso terapêutico , Compostos Organofosforados/economia , Compostos Organofosforados/farmacologia , Compostos Organofosforados/uso terapêutico , Osteoporose/etiologia , Osteoporose/prevenção & controle , Neoplasias da Próstata/patologia , Ligante RANK/antagonistas & inibidores , Proteção Radiológica/métodos , Radioisótopos/economia , Radioisótopos/farmacologia , Radioisótopos/uso terapêutico , Rádio (Elemento)/economia , Rádio (Elemento)/farmacologia , Rádio (Elemento)/uso terapêutico , Estrôncio/economia , Estrôncio/farmacologia , Estrôncio/uso terapêutico , Radioisótopos de Estrôncio/economia , Radioisótopos de Estrôncio/farmacologia , Radioisótopos de Estrôncio/uso terapêutico , Taxoides/economia , Taxoides/farmacologia , Taxoides/uso terapêuticoRESUMO
BACKGROUND: SARS- CoV-2 virus has had dramatic consequences worldwide being able to cause acute respiratory distress syndrome (ARDS), massive thrombosis and pulmonary embolism and, finally, patients' death. In COVID-19 infection, platelets have a procoagulant phenotype that can cause thrombosis in the pulmonary and systemic vascular network. Aspirin is a well-known anti-platelet drug widely used for the prevention of cardiovascular events and systematic reviews suggest a possible benefit of low-dose aspirin (LDA) use in the prevention and treatment of ARDS in patients with COVID-19 infection. However, several studies are available in the literature which do not support any benefits and no association with the patients' outcome. Therefore, currently available data are inconclusive. MATERIALS AND PATIENTS: Data from the nationwide cohort multicenter study of the Italian Society of Internal Medicine (SIMI) were analyzed. We conducted a propensity score-matched cohort analysis to investigate the impact of chronic assumption of LDA on mortality of adult COVID-19 patients admitted in Internal Medicine Units (IMU). Data from 3044 COVID-19 patients who referred to 41 Italian hospitals between February 3rd to May 8th 2020 were analyzed. A propensity score-matched analysis was conducted using the following variables: age, sex, hypertension, hyperlipidemia diabetes, atrial fibrillation, cerebrovascular disease, COPD, CKD and stratified upon LDA usage, excluding anticoagulant treatment. After matching, 380 patients were included in the final analysis (190 in LDA group and 190 in no-LDA group). RESULTS: 66.2% were male, median age was 77 [70-83]. 34.8% of the population died during the hospitalization. Cardiovascular diseases were not significantly different between the groups. After comparison of LDA and no-LDA subgroups, we didn't record a significant difference in mortality rate (35.7% vs 33.7%) duration of hospital stay and ICU admission. In a logistic regression model, age (OR 1.05; 95% CI 1.01-1.09), FiO2 (OR 1.024; 95% CI 1.03-1.04) and days between symptoms onset and hospitalization (OR 0.93; 95% CI 0.87-0.99) were the only variables independently associated with death.
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Aspirina , COVID-19 , Idoso , Feminino , Humanos , Masculino , Aspirina/uso terapêutico , Estudos de Coortes , COVID-19/complicações , COVID-19/terapia , Pontuação de Propensão , Sistema de Registros , Síndrome do Desconforto Respiratório , SARS-CoV-2 , Trombose , Estudos Multicêntricos como Assunto , Idoso de 80 Anos ou maisRESUMO
PURPOSE: Patients with locally advanced cervical cancer (LACC) are usually treated with concurrent chemoradiotherapy. Extended-field chemoradiotherapy is indicated in case of para-aortic node involvement at initial assessment. 18-Fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography (18-FDG PET/CT) is currently considered to be the most accurate method of detection of node or distant metastases. The goal of this study was to evaluate the accuracy of PET at detecting para-aortic lymph node metastases in LACC patients with a negative morphological imaging. METHODS: Patients from five French institutions with LACC and both negative morphologic (magnetic resonance imaging, CT scan) and functional (PET or PET/CT) findings at the para-aortic level and distantly were submitted to a systematic infrarenal para-aortic node dissection either by laparoscopy or laparotomy. On the basis of pathological results, sensitivity, specificity, and positive and negative predictive values of PET/CT were assessed for para-aortic lymph node involvement. RESULTS: A total of 125 LACC patients (stage IB2-IVA disease with two local recurrences) fulfilled the inclusion criteria. All had an ilio-infrarenal para-aortic lymphadenectomy, either by laparoscopy (n = 117) or laparotomy (n = 8). Twenty-one patients (16.8%) had pathologically proven para-aortic metastases. Among them, 14 (66.7%) had negative PET/CT. Overall morbidity of surgery was 7.2%. All but one of the complications were mild and did not delay chemoradiotherapy. Sensitivity, specificity, and positive and negative predictive value of the PET/CT were 33.3, 94.2, 53.8, and 87.5%, respectively, for the detection of microscopic lymph node metastases. CONCLUSIONS: Laparoscopic staging surgery seems warranted in LACC patients with negative PET scan who are candidates for definitive concurrent chemoradiotherapy or exenteration.
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Adenocarcinoma de Células Claras/diagnóstico , Adenocarcinoma/diagnóstico , Carcinoma de Células Escamosas/diagnóstico , Fluordesoxiglucose F18 , Linfonodos/patologia , Recidiva Local de Neoplasia/diagnóstico , Tomografia por Emissão de Pósitrons , Neoplasias do Colo do Útero/diagnóstico , Adenocarcinoma/terapia , Adenocarcinoma de Células Claras/terapia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células Escamosas/terapia , Criança , Feminino , Seguimentos , Humanos , Metástase Linfática , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/terapia , Compostos Radiofarmacêuticos , Estudos Retrospectivos , Sensibilidade e Especificidade , Taxa de Sobrevida , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Neoplasias do Colo do Útero/terapia , Adulto JovemRESUMO
Demographic changes in the Western world linked to the increase in the elderly population, life expectancy and above all cancer patients and chronically ill patients, often entrusted to home care or in healthcare residences, highlight an exponential increase in requests for diagnostic tests at home. Conventional radiographic examinations, such as thoracic, musculoskeletal and abdominal images are the most requested and are important first level diagnostic tests. To date and, in particular, in times of COVID-19 emergency, these patients need to be transferred to the hospital to perform radiological examinations which involve an increase in costs for the health system and an increased risk for the health of these patients, already often debilitated and immunocompromised. This article discussed the benefits of taking conventional chest x-rays directly at the patient's home.
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COVID-19/prevenção & controle , Serviços de Assistência Domiciliar/organização & administração , Radiografia/métodos , Atenção à Saúde , Humanos , Unidades Móveis de Saúde , SARS-CoV-2RESUMO
Transgenic Balb/c mice expressing the transforming rat HER-2/neu oncogene develop early and multifocal mammary carcinomas. Within the first 5 months of life the tissue-specific expression of HER-2/neu causes a progression in all their 10 mammary glands from atypical hyperplasia to invasive carcinoma. It was previously observed that chronic administration of interleukin (IL)-12 increased tumor latency, but every mouse eventually succumbed to multiple carcinomas. A significant improvement in tumor prevention was sought by administering allogeneic mammary carcinoma cells expressing HER-2/neu combined with systemic IL-12. This treatment reduced tumor incidence by 90% and more than doubled mouse lifetime. For the maximum prevention p185(neu) antigen must be expressed by allogeneic cells. IL-12 treatment strongly increased the cell vaccine efficacy. The mammary glands of mice receiving the combined treatment displayed a markedly reduced epithelial cell proliferation, angiogenesis, and HER-2/neu expression, while the few hyperplastic foci were heavily infiltrated by granulocytes, macrophages, and CD8(+) lymphocytes. Specific anti-HER-2/neu antibodies were produced and a nonpolarized activation of CD4(+) and CD8(+) cells secreting IL-4 and interferon (IFN)-gamma were evident. A central role for IFN-gamma in the preventive effect was proven by the lack of efficacy of vaccination in IFN-gamma gene knockout HER-2/neu transgenic Balb/c mice. A possible requirement for IFN-gamma is related to its effect on antibody production, in particular on IgG2a and IgG2b subclasses, that were not induced in IFN-gamma knockout HER-2/neu mice. In conclusion, our data show that an allogeneic HER-2/neu-expressing cell vaccine combined with IL-12 systemic treatment can prevent the onset of genetically determined tumors.
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Adjuvantes Imunológicos , Vacinas Anticâncer/imunologia , Interleucina-12/imunologia , Neoplasias Mamárias Experimentais/prevenção & controle , Receptor ErbB-2/fisiologia , Animais , Mama/patologia , Linfócitos T CD4-Positivos/imunologia , Transplante de Células , Feminino , Imunidade Celular/imunologia , Interferon gama/genética , Interferon gama/imunologia , Interleucina-12/administração & dosagem , Neoplasias Mamárias Experimentais/imunologia , Neoplasias Mamárias Experimentais/patologia , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Knockout , Camundongos Transgênicos , Ratos , Receptor ErbB-2/genética , Transplante Homólogo , Células Tumorais Cultivadas , Vacinação/métodosRESUMO
The ability of interleukin (IL)-12 to prevent tumors when administered to individuals with a genetic risk of cancer was studied in two lines of transgenic mice expressing rat HER-2/neu oncogene in the mammary gland. Female BALB/c (H-2(d)) mice carrying the activated HER-2/ neu oncogene show no morphological abnormalities of the mammary gland until 3 wk of age. They then progress through atypical hyperplasia to in situ lobular carcinoma and at 33 wk of age all 10 mammary glands display invasive carcinomas. Adult FVB mice (H-2(q)) carrying the HER-2/neu protooncogene develop mammary carcinomas with a longer latency (38-49 wk) and a lower multiplicity (mean of 2.6 tumors/mice). Treatment with IL-12 (5 daily intraperitoneal injections, 1 wk on, 3 wk off; the first course with 50 ng IL-12/day, the second with 100 ng IL-12/day) begun at 2 wk of age in BALB/c mice and at 21 wk of age in FVB mice markedly delayed tumor onset and reduced tumor multiplicity. Analogous results were obtained in immunocompetent and permanently CD8(+) T lymphocyte-depleted mice. In both transgenic lines, tumor inhibition was associated with mammary infiltration of reactive cells, production of cytokines and inducible nitric oxide synthase, and reduction in microvessel number, in combination with a high degree of hemorrhagic necrosis.
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Antineoplásicos/farmacologia , Carcinoma in Situ/prevenção & controle , Carcinoma Lobular/prevenção & controle , Interleucina-12/farmacologia , Neoplasias Mamárias Experimentais/prevenção & controle , Receptor ErbB-2/fisiologia , Animais , Antineoplásicos/imunologia , Linfócitos T CD4-Positivos/citologia , Linfócitos T CD8-Positivos/citologia , Linfócitos T CD8-Positivos/imunologia , Carcinoma in Situ/genética , Carcinoma in Situ/imunologia , Carcinoma Lobular/genética , Carcinoma Lobular/imunologia , Quimiocina CXCL10 , Quimiocina CXCL9 , Quimiocinas CXC/genética , Feminino , Interferon gama/imunologia , Interleucina-12/imunologia , Depleção Linfocítica , Masculino , Neoplasias Mamárias Experimentais/imunologia , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Transgênicos , Óxido Nítrico Sintase/biossíntese , Óxido Nítrico Sintase Tipo II , Ratos , Receptor ErbB-2/genética , Fator de Necrose Tumoral alfa/imunologia , Molécula 1 de Adesão de Célula Vascular/biossínteseRESUMO
Evidence-based medicine has enabled to approach disease in a more rational and scientific way. Clinical research has identified behaviours and risk factors that could cause disease often "silent" at the beginning, such as diabetes. Despite the clear impact of these evidences on public health, it seems that the individual risk perception level remains weak. To mention as well, the health professionals very often have a different views, which makes it difficult to communicate the risk with patients. In this article we describe the principles of risk perception, the diabetes related risk perception concerning cardiovascular complications, and suggest some practical strategies and tools which could improve risk communication in the everyday practice.
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Doenças Cardiovasculares/etiologia , Comunicação , Complicações do Diabetes , Educação de Pacientes como Assunto , Diabetes Mellitus Tipo 2/complicações , Medicina Baseada em Evidências , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Percepção , Relações Médico-Paciente , Medição de Risco , Fatores de Risco , Assunção de RiscosRESUMO
The aim of this article is to propose an anthropological point of view about informed consent in medicine. This quest for legitimacy should be read as a relational and social construction. In the heart of clinical complexity we find on one side various techniques employed by the medical community to validate research and to obtain the consent of patients. On the other side patients offer plural and subjective answers due to the doctor patient hierarchical and long relationship. Between constraints and freedoms, informed consent brings to light social relation.