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2.
J Eur Acad Dermatol Venereol ; 33(7): 1261-1267, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30801825

RESUMO

The incidence of non-melanoma skin cancer (NMSC) is dramatically increasing worldwide, despite the increased use of improved sunscreens. In 2014, the Surgeon General estimated that 2.2-5.0 million people were treated annually for NMSC. As the number of newly diagnosed skin cancers continues to rise, there is a need for additional preventative measures beyond sunscreens. Several newer topical products that focus on boosting DNA repair, modulating DNA transcription, decreasing inflammation and selectively targeting precancerous cells may play an important role in future skin cancer prevention.


Assuntos
Carcinoma Basocelular/prevenção & controle , Carcinoma de Células Escamosas/prevenção & controle , Enzimas Reparadoras do DNA/administração & dosagem , Neoplasias Cutâneas/prevenção & controle , Administração Cutânea , Inibidores de Ciclo-Oxigenase 2/administração & dosagem , Humanos , Niacinamida/administração & dosagem , Polifenóis/administração & dosagem , Retinoides/administração & dosagem , Protetores Solares/uso terapêutico , Complexo Vitamínico B/administração & dosagem
3.
Osteoarthritis Cartilage ; 26(6): 797-806, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29578045

RESUMO

OBJECTIVE: Mutations on chromosomes 5p (CCAL2) and 8q (CCAL1) have been linked to familial forms of calcium pyrophosphate deposition disease (CPDD). Mutations in the ANKH gene account for CCAL2, but the identity of CCAL1 has been elusive. Recently, a single Dutch kindred with a mutation in the Tumor Necrosis Factor Receptor Super Family member 11B (TNFRSF11B) gene coding for osteoprotegerin (OPG) was described as a gain-of-function mutation. Affected family members had premature generalized osteoarthritis (PGOA) and CPDD. As the TNFRSF11B gene is on 8q, we sought additional evidence that TNFRSF11B was CCAL1, and investigated potential disease mechanisms. DESIGN: DNA from two novel PGOA/CPDD families was screened for sequence variants in the TNFRSF11B gene. Mutations were verified by genotype analysis of affected and unaffected family members. We also investigated effects of normal and mutant OPG on regulators of CPP crystal formation in porcine cartilage. RESULTS: The identical TNFRSF11B mutation described in the Dutch family was present in two novel PGOA/CPDD families. ANKH was normal in affected patient fibroblasts. Exogenous OPG did not alter ANKH mRNA or protein levels, affect translocation of ANKH to the membrane, nor increase [pyrophosphate (PPi)] or other key regulators of CPDD. CONCLUSION: We have firmly established the identity of CCAL1 as TNFRSF11B (OPG). Our findings suggest that this mutation produces disease in an ANKH-independent manner via novel mechanisms not primarily targeting cartilage. This work rationalizes further investigation of OPG pathway components as potential druggable targets for CPDD.


Assuntos
Condrocalcinose/genética , Mutação , Osteoprotegerina/genética , Adulto , Condrocalcinose/diagnóstico , Humanos , Linhagem
5.
Blood Cancer J ; 6: e384, 2016 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-26771810

RESUMO

Carfilzomib (Cfz) has been associated with an ~5% incidence of unexplained and unpredictable cardiovascular toxicity in clinical trials. We therefore implemented a detailed, prospective, clinical cardiac and renal evaluation of 62 Cfz-treated myeloma patients, including serial blood pressure (BP), creatinine, troponin, NT-proBNP and pre- and post-treatment echocardiograms, including ejection fraction (EF), average global longitudinal strain and compliance. Pre-treatment elevations in NT-proBNP and BP, as well as abnormal cardiac strain were common. A rise in NT-proBNP occurred frequently post-treatment often without corresponding cardiopulmonary symptoms. A rise in creatinine was common, lessened with hydration and often reversible. All patients had a normal EF pre-treatment. Five patients experienced a significant cardiac event (four decline in EF and one myocardial infarction), of which 2 (3.2%) were considered probably attributable to Cfz. None were rechallenged with Cfz. The ideal strategy for identifying patients at risk for cardiac events, and parameters by which to monitor for early toxicity have not been established; however, it appears baseline echocardiographic testing is not consistently predictive of toxicity. The toxicities observed suggest an endothelial mechanism and further clinical trials are needed to determine whether or not this represents a class effect or is Cfz specific.


Assuntos
Cardiopatias/etiologia , Nefropatias/etiologia , Mieloma Múltiplo/complicações , Mieloma Múltiplo/tratamento farmacológico , Oligopeptídeos/farmacologia , Oligopeptídeos/uso terapêutico , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Biomarcadores , Cardiotoxicidade , Feminino , Cardiopatias/metabolismo , Cardiopatias/fisiopatologia , Humanos , Nefropatias/metabolismo , Nefropatias/fisiopatologia , Masculino , Pessoa de Meia-Idade , Mieloma Múltiplo/patologia , Peptídeo Natriurético Encefálico , Fragmentos de Peptídeos , Inibidores de Proteassoma/farmacologia , Inibidores de Proteassoma/uso terapêutico , Volume Sistólico/efeitos dos fármacos
6.
Leukemia ; 30(2): 423-30, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26526987

RESUMO

Using a data set of 1217 patients with multiple myeloma enrolled in Total Therapies, we have examined the impact of novel therapies on molecular and risk subgroups and the clinical value of molecular classification. Bortezomib significantly improved the progression-free survival (PFS) and overall survival (OS) of the MMSET (MS) subgroup. Thalidomide and bortezomib positively impacted the PFS of low-risk (LoR) cases defined by the GEP70 signature, whereas high-risk (HiR) cases showed no significant changes in outcome. We show that molecular classification is important if response rates are to be used to predict outcomes. The t(11;14)-containing CD-1 and CD-2 subgroups showed clear differences in time to response and cumulative response rates but similar PFS and OS. Furthermore, complete remission was not significantly associated with the outcome of the MAF/MAFB (MF) subgroup or HiR cases. HiR cases were enriched in the MF, MS and proliferation subgroups, but the poor outcome of these groups was not linked to subgroup-specific characteristics such as MAF overexpression per se. It is especially important to define risk status if HiR cases are to be managed appropriately because of their aggressive clinical course, high rates of early relapse and the need to maintain therapeutic pressure on the clone.


Assuntos
Perfilação da Expressão Gênica , Mieloma Múltiplo/genética , Intervalo Livre de Doença , Humanos , Mieloma Múltiplo/classificação , Mieloma Múltiplo/tratamento farmacológico , Mieloma Múltiplo/mortalidade , Recidiva
7.
Osteoarthritis Cartilage ; 23(6): 841-50, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25837996

RESUMO

Projected increases in the prevalence of both diabetes mellitus (DM) and osteoarthritis (OA) ensure their common co-existence. In an era of increasing attention to personalized medicine, understanding the influence of common comorbidities such as DM should result in improved care of patients with OA. In this narrative review, we summarize the literature addressing the interactions between DM and OA spanning the years from 1962 to 2014. We separated studies depending on whether they investigated clinical populations, animal models, or cells and tissues. The clinical literature addressing the influence of DM on OA and its therapeutic outcomes suggests that DM may augment the development and severity of OA and that DM increases risks associated with joint replacement surgery. The few high quality studies using animal models also support an adverse effect of DM on OA. We review strengths and weaknesses of the common rodent models of DM. The heterogeneous literature derived from studies of articular cells and tissues also supports the existence of biochemical and biomechanical changes in articular tissues in DM, and begins to characterize molecular mechanisms activated in diabetic-like environs which may contribute to OA. Increasing evidence from the clinic and the laboratory supports an adverse effect of DM on the development, severity, and therapeutic outcomes for OA. To understand the mechanisms through which DM contributes to OA, further studies are clearly necessary. Future studies of DM-influenced mechanisms may shed light on general mechanisms of OA pathogenesis and result in more specific and effective therapies for all OA patients.


Assuntos
Diabetes Mellitus Tipo 2/complicações , Osteoartrite/etiologia , Animais , Artrite Experimental/etiologia , Diabetes Mellitus Tipo 2/epidemiologia , Medicina Baseada em Evidências/métodos , Humanos , Hiperglicemia/complicações , Osteoartrite/epidemiologia
8.
Leukemia ; 29(8): 1713-20, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25753926

RESUMO

As part of Total Therapy (TT) 3b, baseline marrow aspirates were subjected to two-color flow cytometry of nuclear DNA content and cytoplasmic immunoglobulin (DNA/CIG) as well as plasma cell gene expression profiling (GEP). DNA/CIG-derived parameters, GEP and standard clinical variables were examined for their effects on overall survival (OS) and progression-free survival (PFS). Among DNA/CIG parameters, the percentage of the light chain-restricted (LCR) cells and their cytoplasmic immunoglobulin index (CIg) were linked to poor outcome. In the absence of GEP data, low CIg <2.8, albumin <3.5 g/dl and age ⩾65 years were significantly associated with inferior OS and PFS. When GEP information was included, low CIg survived the model along with GEP70-defined high risk and low albumin. Low CIg was linked to beta-2-microglobulin >5.5 mg/l, a percentage of LCR cells exceeding 50%, C-reactive protein ⩾8 mg/l and GEP-derived high centrosome index. Further analysis revealed an association of low CIg with 12 gene probes implicated in cell cycle regulation, differentiation and drug transportation from which a risk score was developed in TT3b that held prognostic significance also in TT3a, TT2 and HOVON trials, thus validating its general applicability. Low CIg is a powerful new prognostic variable and has identified potentially drug-able targets.


Assuntos
Biomarcadores Tumorais/genética , Citometria de Fluxo/métodos , Perfilação da Expressão Gênica , Cadeias Leves de Imunoglobulina/metabolismo , Mieloma Múltiplo/genética , Mieloma Múltiplo/metabolismo , Idoso , Biomarcadores Tumorais/metabolismo , Feminino , Humanos , Masculino , Mieloma Múltiplo/imunologia , Mieloma Múltiplo/mortalidade , Estadiamento de Neoplasias , Análise de Sequência com Séries de Oligonucleotídeos , Prognóstico , RNA Mensageiro/genética , Reação em Cadeia da Polimerase em Tempo Real , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Taxa de Sobrevida
9.
Leukemia ; 29(5): 1195-201, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25640885

RESUMO

Renal insufficiency (RI) is a frequent complication of multiple myeloma (MM) with negative consequences for patient survival. The improved clinical outcome with successive Total Therapy (TT) protocols was limited to patients without RI. We therefore performed a retrospective analysis of overall survival, progression-free survival and time to progression (TTP) of patients enrolled in TT2 and TT3 in relationship to RI present at baseline and pre-transplant. Glomerular filtration rate was graded in four renal classes (RCs), RC1-RC4 (RC1 ⩾90 ml/min/1.73 m(2), RC2 60-89 ml/min/1.73 m(2), RC3 30-59 ml/min/1.73 m(2) and RC4 <30 ml/min/1.73 m(2)). RC1-3 had comparable clinical outcomes while RC4 was deleterious, even after improvement to better RC after transplant. Among the 85% of patients with gene expression profiling defined low-risk MM, Cox regression modeling of baseline and pre-transplant features, which also took into consideration RC improvement and MM complete response (CR), identified the presence of metaphase cytogenetic abnormalities and baseline RC4 as independent variables linked to inferior TTP post-transplant, while MM CR reduced the risk of progression and TTP by more than 60%. Failure to improve clinical outcomes despite RI improvement suggested MM-related causes. Although distinguishing RC4 from RC<4, 46 gene probes bore no apparent relationship to MM biology or survival.


Assuntos
Rim/fisiopatologia , Mieloma Múltiplo/terapia , Insuficiência Renal/terapia , Idoso , Células da Medula Óssea/metabolismo , Ácidos Borônicos/administração & dosagem , Bortezomib , Proteína C-Reativa/metabolismo , Creatinina/sangue , Progressão da Doença , Intervalo Livre de Doença , Feminino , Taxa de Filtração Glomerular , Humanos , Masculino , Metáfase , Pessoa de Meia-Idade , Análise Multivariada , Plasmócitos/citologia , Prognóstico , Modelos de Riscos Proporcionais , Pirazinas/administração & dosagem , Insuficiência Renal/complicações , Insuficiência Renal/fisiopatologia , Estudos Retrospectivos , Resultado do Tratamento
10.
Osteoarthritis Cartilage ; 23(2): 308-18, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25464168

RESUMO

OBJECTIVE: Articular cartilage is a highly specialized tissue which forms the surfaces in synovial joints. Full-thickness cartilage defects caused by trauma or microfracture surgery heal via the formation of fibrotic tissue characterized by a high content of collagen I (COL I) and subsequent poor mechanical properties. The goal of this study is to investigate the molecular mechanisms underlying fibrosis after joint injury. DESIGN: Rat knee joint models were used to mimic cartilage defects after acute injury. Immunohistochemistry was performed to detect proteins related to fibrosis. Human fetal chondrocytes and bone marrow stromal cells (BMSCs) were used to study the influence of the lipid lysophosphatidic acid (LPA) on COL I synthesis. Quantitative PCR, ELISA and immunohistochemistry were performed to evaluate the production of COL I. Chemical inhibitors were used to block LPA signaling both in vitro and in vivo. RESULTS: After full-thickness cartilage injury in rat knee joints, stromal cells migrating to the injury expressed high levels of the LPA-producing enzyme autotaxin (ATX); intact articular cartilage in rat and humans expressed negligible levels of ATX despite expressing the LPA receptors LPAR1 and LPAR2. LPA-induced increases in COL I production by chondrocytes and BMSCs were mediated by the MAP kinase and PI3 Kinase signaling pathways. Inhibition of the ATX/LPA axis significantly reduced COL I-enriched fibrocartilage synthesis in full-thickness cartilage defects in rats in favor of the collagen II-enriched normal state. CONCLUSION: Taken together, these results identify an attractive target for intervention in reducing the progression of post-traumatic fibrosis and osteoarthritis.


Assuntos
Cartilagem Articular/lesões , Cartilagem Articular/patologia , Colágeno Tipo I/biossíntese , Lisofosfolipídeos/fisiologia , Joelho de Quadrúpedes/lesões , Animais , Fibrose/etiologia , Humanos , Masculino , Ratos , Ratos Sprague-Dawley
11.
Complement Ther Med ; 22(4): 690-700, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25146074

RESUMO

OBJECTIVES: To compare the capacity of the MYCaW questionnaire, a priority list of concerns covered by validated questionnaires, and semi-structured interviews to identify patients' personalized concerns and related changes. DESIGN: In a pragmatic trial on the effectiveness of energy healing as rehabilitation after colorectal cancer, a sub-sample of 31 participants completed the MYCaW questionnaire and the priority list and were interviewed before, during and after the treatment period. SETTING: Treatments were provided in healers' clinics in Denmark. MAIN OUTCOME MEASURES: For each participant convergences and divergences of the outcome measures are identified, and strengths and weaknesses of the three methods in regard to capturing personalized concerns and changes are discussed. RESULTS: Three patterns were identified: (1) in the intervention groups concerns stated in MYCaW were adjusted after experience with the treatment, while concerns stated in interviews and the priority list remained stable throughout the study; (2) emotional concerns were reported more often in interviews than in MYCaW, physical concerns were predominant in MYCaW, and quality of life was marked as a primary concern most frequently on the priority list; (3) participants reported greater improvement in interviews than in MYCaW. CONCLUSIONS: Relevant concerns in the MYCaW questionnaire seem to require that participants are well acquainted with the treatment under study. The priority list directs participants to particular areas of concerns and markings are stable. Interviews are well suited to disclose concerns regarding sensitive issues, e.g. anxiety of relapse, and experiences of subtle, non-specific changes.


Assuntos
Neoplasias Colorretais/psicologia , Neoplasias Colorretais/terapia , Entrevistas como Assunto/métodos , Terapias Mente-Corpo/psicologia , Avaliação de Resultados da Assistência ao Paciente , Inquéritos e Questionários , Idoso , Idoso de 80 Anos ou mais , Dinamarca , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
12.
Br J Cancer ; 110(12): 2837-46, 2014 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-24867697

RESUMO

BACKGROUND: The purpose of this study was to determine the accuracy of sentinel lymph node (SLN) biopsy with technetium 99 (99mTc) and/or blue dye-enhanced lymphoscintigraphy in vulval cancer. METHODS: Sensitive searches of databases were performed upto October 2013. Studies with at least 75% of women with FIGO stage IB or II vulval cancer evaluating SLN biopsy with 99mTc, blue dye or both with reference standard of inguinofemoral lymphadenectomy (IFL) or clinical follow-up were included. Meta-analyses were performed using Meta-Disc version 1.4. RESULTS: Of the 2950 references, 29 studies (1779 women) were included; most of them evaluated 99mTc combined with blue dye. Of these, 24 studies reported results for SLN followed by IFL, and 5 reported clinical follow-up only for SLN negatives. Pooling of all studies was inappropriate because of heterogeneity. Mean SLN detection rates were 94.0% for 99mTc, 68.7% for blue dye and 97.7% for both. SLN biopsy had pooled sensitivity of 95% (95% CI 92-98%) with negative predictive value (NPV) of 97.9% in studies using 99mTc/blue dye, ultrastaging and immunohistochemistry with IFL as reference. Pooled sensitivity for SLN with clinical follow-up for SLN-negatives was 91% (85-95%) with NPV 95.6%. Patients undergoing SLN biopsy experienced less morbidity than those undergoing IFL. CONCLUSIONS: Sentinel lymph node biopsy using 99mTC, blue dye and ultrastaging with immunohistochemistry is highly accurate when restricted to carefully selected patients, within a rigorous protocol, with close follow-up and where sufficient numbers for learning curve optimisation exist. Patients must make an informed choice between the slightly higher groin recurrence rates of SLN biopsy vs the greater morbidity of IFL.


Assuntos
Linfonodos/patologia , Biópsia de Linfonodo Sentinela , Neoplasias Vulvares/patologia , Corantes , Detecção Precoce de Câncer , Feminino , Humanos , Imuno-Histoquímica , Linfonodos/diagnóstico por imagem , Linfonodos/cirurgia , Metástase Linfática , Linfocintigrafia , Recidiva Local de Neoplasia , Compostos Radiofarmacêuticos , Coloração e Rotulagem , Tecnécio , Neoplasias Vulvares/diagnóstico por imagem
13.
Handb Exp Pharmacol ; 220: 497-512, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24668485

RESUMO

The neurotrophin family is comprised of the structurally related secreted proteins nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), neurotrophin-3 (NT-3), and neurotrophine-4 (NT-4). They bind and activate the tyrosine kinase receptors Trk A, B, and C in a ligand-specific manner and additionally bind a shared p75NTR receptor. The neurotrophins were originally defined by their ability to support the survival and maturation of embryonic neurons. However, they also control important physiological functions of the adult nervous system including learning and memory, sensation, and energy homeostasis. For example, NGF/trkA signaling is critical for normal and pathological sensation of pain. Likewise, the BDNF/trkB pathway controls feeding and metabolism, and its dysfunction leads to severe obesity. Antibodies can modulate neurotrophin signaling. Thus, NGF blocking agents can attenuate pain in several animal models, and a recombinant humanized NGF blocking antibody (Tanezumab) has shown promising results in human clinical trials for osteoarthritic pain. On the other hand trkB agonist antibodies can modulate food intake and body weight in rodents and nonhuman primates. The power of monoclonal antibodies to modulate neurotrophin signaling promises to turn the rich biological insights into novel human medicines.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Fatores de Crescimento Neural/fisiologia , Transdução de Sinais/fisiologia , Animais , Transtornos da Alimentação e da Ingestão de Alimentos/tratamento farmacológico , Humanos , Fator de Crescimento Neural/antagonistas & inibidores , Doenças Neurodegenerativas/tratamento farmacológico , Dor/tratamento farmacológico , Receptor trkA/antagonistas & inibidores , Receptor trkB/agonistas
14.
Health Technol Assess ; 17(60): 1-216, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24331128

RESUMO

BACKGROUND: Vulval cancer causes 3-5% of all gynaecological malignancies and requires surgical removal and inguinofemoral lymphadenectomy (IFL). Complications affect > 50% of patients, including groin wound infection, lymphoedema and cellulitis. A sentinel lymph node (SLN) is the first groin node with the highest probability of malignancy. SLN biopsy would be useful if it could accurately identify patients in whom cancer has spread to the groin, without removing all groin nodes. SLNs can be identified by isosulfan blue dye and/or technetium-99 ((99m)Tc) radioactive tracer during lymphoscintigraphy. The blue dye/(99m)Tc procedure only detects SLN, not metastases - this requires histological examination, which can include ultrastaging and staining with conventional haematoxylin and eosin (H&E) or immunohistochemistry. OBJECTIVES: To determine the test accuracy and cost-effectiveness of the SLN biopsy with (99m)Tc and/or blue dye compared with IFL or clinical follow-up for test negatives in vulval cancer, through systematic reviews and economic evaluation. DATA SOURCES: Standard medical databases, including MEDLINE, EMBASE, Science Citation Index and The Cochrane Library, medical search gateways, reference lists of review articles and included studies were searched to January 2011. METHODS: For accuracy and effectiveness, standard methods were used and reported according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Searches were to January 2011, with no language restrictions. Meta-analyses were carried out with Meta-Disc version 1.4 (Javier Zamora, Madrid, Spain) for accuracy; none was appropriate for effectiveness. The economic evaluation from a NHS perspective used a decision-tree model in DATA TreeAge Pro Healthcare 2001 (TreeAge Software, Inc., Williamstown, MA, USA). Six options (blue dye with H&E, blue dye with ultrastaging, (99m)Tc with H&E, (99m)Tc with ultrastaging, blue dye/(99m)Tc with H&E, blue dye/(99m)Tc with ultrastaging) were compared with IFL. Deterministic and probabilistic sensitivity analyses were conducted. RESULTS: For accuracy, of the 26 included studies, most evaluated (99m)Tc/blue dye combined. Four studies had clinical follow-up only for test negatives and five had clinical follow-up for all and IFL for test negatives. Numbers with no SLN found were difficult to distinguish from those with negative SLN biopsies. The largest group of 11 studies using (99m)Tc/blue dye, ultrastaging and immunohistochemistry had a pooled sensitivity of 95.6% [95% confidence interval (CI) 91.5% to 98.1%] and a specificity of 100% (95% CI 99.0% to 100%). Mean SLN detection rates were 94.6% for (99m)Tc, 68.7% for blue dye and 97.7% for both. One study measured global health status quality of life (QoL) and found no difference between SLN biopsy and IFL. One patient preference evaluation showed that 66% preferred IFL rather than a 5% false-negative rate from SLN biopsy. For effectiveness, of 14,038 references, one randomised controlled trial, three case-control studies and 13 case series were found. Approximately 50% died from vulval cancer and 50% from other causes during follow-ups. Recurrences were in the ratio of approximately 4 : 2 : 1 vulval, groin and distant, with more recurrences in node-positive patients. No studies reported QoL. For cost per death averted, IFL was less costly and more effective than strategies using SLN biopsy. For morbidity-free survival and long-term morbidity-free survival, (99m)Tc with ultrastaging was most cost-effective. Strategies with blue dye only and H&E only were never cost-effective. The incremental cost-effectiveness ratio for (99m)Tc with ultrastaging compared with IFL was £4300 per case of morbidity-free survival and £7100 per long-term morbidity-free survival. LIMITATIONS: The main limitations of this study include the lack of good-quality evidence on accuracy, effectiveness and QoL. A large project such as this takes time to publish, so the most recent studies are not included. CONCLUSIONS: A sensitive and specific combined metastatic SLN detection test and information on generic QoL in vulval cancer is urgently required. FUNDING: The National Institute for Health Research Health Technology Assessment programme.


Assuntos
Avaliação de Processos e Resultados em Cuidados de Saúde , Qualidade de Vida/psicologia , Biópsia de Linfonodo Sentinela/economia , Neoplasias Vulvares/economia , Adulto , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Análise Custo-Benefício , Feminino , Humanos , Canal Inguinal/patologia , Canal Inguinal/cirurgia , Linfocintigrafia/efeitos adversos , Linfocintigrafia/economia , Linfocintigrafia/métodos , Pessoa de Meia-Idade , Modelos Econômicos , Complicações Pós-Operatórias/economia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/psicologia , Prognóstico , Radioterapia/efeitos adversos , Radioterapia/economia , Radioterapia/psicologia , Recidiva , Corantes de Rosanilina/efeitos adversos , Corantes de Rosanilina/economia , Sensibilidade e Especificidade , Biópsia de Linfonodo Sentinela/efeitos adversos , Biópsia de Linfonodo Sentinela/métodos , Análise de Sobrevida , Pentetato de Tecnécio Tc 99m/efeitos adversos , Pentetato de Tecnécio Tc 99m/economia , Reino Unido/epidemiologia , Vulva/efeitos da radiação , Vulva/cirurgia , Neoplasias Vulvares/epidemiologia , Neoplasias Vulvares/patologia , Neoplasias Vulvares/terapia
15.
Br J Cancer ; 109(10): 2533-47, 2013 Nov 12.
Artigo em Inglês | MEDLINE | ID: mdl-24129233

RESUMO

BACKGROUND: This study examines the cost-effectiveness of sentinel lymph node biopsy, a potentially less morbid procedure, compared with inguinofemoral lymphadenectomy (IFL) among women with stage I and stage II vulval squamous cell carcinoma. METHODS: A model-based economic evaluation was undertaken based on clinical evidence from a systematic review of published sources. A decision tree model was developed with the structure being informed by clinical input, taking the perspective of the health-care provider. RESULTS: For overall survival for 2 years, IFL was found to be the most cost-effective option and dominated all other strategies, being the least costly and most effective. For morbidity-free related outcomes for 2 years, sentinel lymph node (SLN) biopsy with 99mTc and blue dye and haematoxylin & eosin (H&E) histopathology, with ultrastaging and immunohistochemistry reserved for those that test negative following H&E is likely to be the most effective approach. CONCLUSION: SLN biopsy using 99mTc and blue dye with ultrastaging may be considered the most cost-effective strategy based on the outcome of survival free of morbidity for 2 years. The findings here also indicate that using blue dye and H&E for the identification of the SLN and the identification of metastasis, respectively, are not sensitive enough to be used on their own.


Assuntos
Carcinoma de Células Escamosas/patologia , Excisão de Linfonodo/economia , Biópsia de Linfonodo Sentinela/economia , Neoplasias Vulvares/patologia , Carcinoma de Células Escamosas/mortalidade , Análise Custo-Benefício , Feminino , Custos de Cuidados de Saúde , Humanos , Canal Inguinal , Linfonodos/patologia , Metástase Linfática , Neoplasias Vulvares/mortalidade
16.
Br J Cancer ; 109(5): 1192-7, 2013 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-23963142

RESUMO

BACKGROUND: The celebrity Jade Goody's cervical cancer diagnosis was associated with increased UK cervical screening attendance. We wanted to establish if there was an increase in high-grade (HG) cervical neoplasia diagnoses, and if so, what the characteristics of the women with HG disease were. METHODS: We analysed prospective data on 3233 consecutive colposcopy referrals in North East London, UK, from 01 April 2005 to 30 June 2010. Characteristics and outcomes of pre- and post-Goody cohorts were compared. RESULTS: Goody's diagnosis was associated with an increased incidence of colposcopy referrals in all subsequent annual quarters (incidence rate ratio (IRR) 1.3-1.9, P<0.002-P<0.0005) and increased HG disease diagnoses in the fourth quarter 2008/2009 (IRR 1.3, P=0.05) and first quarter 2009/2010 (IRR 1.3, P=0.07). We observed 1.90-fold (CI: 1.06-3.39), 2.06 (CI: 1.13-3.76) and 2.13-fold (CI: 1.07-4.25) respective increases in the odds of HG disease women being screening-naive in the first and second quarter 2009/2010, and the first quarter 2010/2011 (P<0.04, P<0.02 and P<0.04, respectively). There was a 2.23-fold increase in the odds of screening-naive HG disease women being symptomatic post-Goody's diagnosis (P=0.023). The age distributions of the pre- and post-Goody cohorts did not differ in any study group. CONCLUSION: Continued publicity about celebrities' diagnoses might encourage screening in at-risk populations.


Assuntos
Detecção Precoce de Câncer/estatística & dados numéricos , Pessoas Famosas , Programas de Rastreamento/estatística & dados numéricos , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/prevenção & controle , Colposcopia/estatística & dados numéricos , Feminino , Humanos , Meios de Comunicação de Massa , Programas de Rastreamento/tendências , Reino Unido
17.
Braz. j. microbiol ; 44(1): 23-28, 2013. tab
Artigo em Inglês | LILACS | ID: lil-676906

RESUMO

High hydrostatic pressure (HHP) has been investigated and industrially applied to extend shelf life of meat-based products. Traditional ham packaged under microaerophilic conditions may sometimes present high lactic acid bacteria population during refrigerated storage, which limits shelf life due to development of unpleasant odor and greenish and sticky appearance. This study aimed at evaluating the shelf life of turkey ham pressurized at 400 MPa for 15 min and stored at 4, 8 and 12 ºC, in comparison to the non pressurized product. The lactic acid bacteria population up to 10(7) CFU/g of product was set as the criteria to determine the limiting shelf life According to such parameter the pressurized sample achieved a commercial viability within 75 days when stored at 4 ºC while the control lasted only 45 days. Predictive microbiology using Gompertz and Baranyi and Roberts models fitted well both for the pressurized and control samples. The results indicated that the high hydrostatic pressure treatment greatly increased the turkey ham commercial viability in comparison to the usual length, by slowing down the growth of microorganisms in the product.


Assuntos
Humanos , Ácido Láctico/análise , Ácido Láctico/isolamento & purificação , Conservação de Alimentos/métodos , Análise de Alimentos , Microbiologia de Alimentos , Alimentos Modificados pela Incorporação de Ar , Produtos da Carne/análise , Amostras de Alimentos , Pressão Hidrostática , Métodos , Perus
18.
BJOG ; 119(7): 788-94, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22530957

RESUMO

A small proportion of breast cancers metastasise within the peritoneal cavity. With increasing breast cancer incidence rates, gynaecologists and oncologists will encounter such women more frequently. Most women with intraperitoneal breast cancer are premenopausal. Although data are limited and are likely to be subject to selection bias, the median survival of women undergoing resection appears superior to those not undergoing surgery. Furthermore, survival is broadly similar to that for women undergoing advanced ovarian cancer surgery, particularly when tumour debulking is optimal. Obtaining data via randomised trials is unlikely to be feasible and therefore we recommend prospective data collection via the establishment of an international intraperitoneal breast cancer patient registry. For individual women where survival is anticipated to be more than a few months, we suggest considering referral to a gynaecological oncology team for discussion of surgical options.


Assuntos
Neoplasias Abdominais/secundário , Neoplasias da Mama/patologia , Neoplasias Pélvicas/secundário , Neoplasias Abdominais/diagnóstico , Neoplasias Abdominais/mortalidade , Neoplasias Abdominais/cirurgia , Neoplasias da Mama/mortalidade , Feminino , Humanos , Neoplasias Pélvicas/diagnóstico , Neoplasias Pélvicas/mortalidade , Neoplasias Pélvicas/cirurgia , Taxa de Sobrevida , Resultado do Tratamento
19.
BJOG ; 119(5): 527-36, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22260402

RESUMO

OBJECTIVE: To evaluate factors affecting uptake of risk-reducing salpingo-oophorectomy (RRSO) over time in women at high-risk of familial ovarian cancer. DESIGN: Prospective observational cohort. SETTING: Tertiary high-risk familial gynaecological cancer clinic. POPULATION/SAMPLE: New clinic attendees between March 2004 and November 2009, fulfilling the high-risk criteria for the UK Familial Ovarian Cancer Screening Study. METHODS: Risk management options discussed included RRSO and ovarian surveillance. Outcome data were analysed from a bespoke database. The competing risk method was used to model the cumulative incidence function (CIF) of RRSO over time, and the sub-hazard ratio (SHR) was used to assess the strength of the association of variables of interest with RRSO. Gray's test was used to evaluate the difference in CIF between two groups and multivariable competing risk regression analysis was used to model the cumulative probabilities of covariates on the CIF. RESULTS: Of 1133 eligible women, 265 (21.4%) opted for RRSO and 868 (69.9%) chose screening. Women undergoing RRSO were older (49 years, interquartile range 12.2 years) than those preferring screening (43.4 years, interquartile range 11.9 years) (P < 0.0005). The CIF for RRSO at 5 years was 0.55 (95% CI 0.45-0.64) for BRCA1/2 carriers and 0.22 (95% CI 0.19-0.26) for women of unknown mutation status (P < 0.0001); 0.42 (95% CI 0.36-0.47) for postmenopausal women (P < 0.0001); 0.29 (95% CI 0.25-0.33) for parity ≥1 (P = 0.009) and 0.47 (95% CI 0.39-0.55) for a personal history of breast cancer (P < 0.0001). Variables of significance from the regression analysis were: a BRCA1/2 mutation (SHR 2.31, 95% CI 1.7-3.14), postmenopausal status (SHR 2.16, 95% CI 1.62-2.87)) and a personal history of breast cancer (SHR 1.5, 95% CI 1.09-2.06). CONCLUSIONS: Decision-making is a complex process and women opt for surgery many years after initial risk assessment. BRCA carriers, postmenopausal women and women who had breast cancer are significantly more likely to opt for preventative surgery.


Assuntos
Neoplasias Ovarianas/cirurgia , Ovariectomia/estatística & dados numéricos , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Salpingectomia/estatística & dados numéricos , Adulto , Detecção Precoce de Câncer , Feminino , Genes BRCA1 , Genes BRCA2 , Heterozigoto , Humanos , Estimativa de Kaplan-Meier , Pessoa de Meia-Idade , Mutação/genética , Neoplasias Ovarianas/genética , Estudos Prospectivos , Gestão de Riscos , Comportamento de Redução do Risco , Fatores de Tempo
20.
BJOG ; 118(7): 814-24, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21392246

RESUMO

OBJECTIVE: To compare surgical outcomes and occult cancer rates at risk-reducing salpingo-oophorectomy in BRCA carriers and high-risk women who had not undergone genetic testing. DESIGN: Prospective cohort study. SETTING: Tertiary high-risk familial gynaecological cancer clinic. POPULATION: Women undergoing risk-reducing salpingo-oophorectomy between January 2005 and November 2009. METHODS: Women at high-risk of ovarian/tubal cancer were identified on the basis of the inclusion criteria for the UK Familial Ovarian Cancer Screening Study. Risk management options discussed with 1456 high-risk women included risk-reducing salpingo-oophorectomy. A strict histopathological protocol with serial slicing was used to assess tubes and ovaries. RESULTS: In total, 308 high-risk women (191 with unknown mutation status; 117 known BRCA1/BRCA2 carriers) chose risk-reducing surgery; 94.5% of procedures were performed laparoscopically. The surgical complication rate was 3.9% (95% CI 2.0-6.7). Four ovarian and ten tubal occult invasive/in situ cancers were found. The overall occult invasive cancer rate was 5.1% (95% CI 1.9-10.83) in BRCA1/BRCA2 carriers and 1.05% (95% CI 0.13-3.73) in untested women. When tubal in situ cancers were included, the overall rate was 4.55% (95% CI 2.5-7.5). Two untested women with tubal carcinoma in situ were subsequently found to be BRCA carriers. The median ages of BRCA carriers (58 years; IQR 13.4 years) and untested women (49.5 years; IQR 20.6 years) with occult invasive/in situ cancer were not significantly different (P = 0.454). CONCLUSIONS: Both high-risk women of unknown mutation status and BRCA carriers have a significant (although higher in the latter group) rate of occult invasive/in situ tubal/ovarian cancer, with a similar age distribution at detection. The data has important implications for counselling high-risk women on the likelihood of occult malignancy and perioperative complications at risk-reducing salpingo-oophorectomy. Women with occult disease should be offered genetic testing.


Assuntos
Carcinoma in Situ/prevenção & controle , Neoplasias das Tubas Uterinas/prevenção & controle , Genes BRCA1 , Genes BRCA2 , Mutação , Neoplasias Ovarianas/prevenção & controle , Ovariectomia , Salpingectomia , Adulto , Idoso , Biomarcadores Tumorais/genética , Carcinoma in Situ/genética , Carcinoma in Situ/patologia , Carcinoma in Situ/cirurgia , Neoplasias das Tubas Uterinas/genética , Neoplasias das Tubas Uterinas/patologia , Neoplasias das Tubas Uterinas/cirurgia , Feminino , Testes Genéticos , Heterozigoto , Hospitais Universitários , Humanos , Incidência , Laparoscopia , Pessoa de Meia-Idade , Invasividade Neoplásica , Neoplasias Ovarianas/genética , Neoplasias Ovarianas/patologia , Neoplasias Ovarianas/cirurgia , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Resultado do Tratamento
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