RESUMO
INTRODUCTION: SIOPEN INES protocol yielded excellent 5-year survival rates for MYCN-non-amplified metastatic neuroblastoma. Patients deemed ineligible due to lack or delay of MYCN status or late registration were treated, but not included in the study. Our goal was to analyse survival at 10 years among the whole population. MATERIALS AND METHODS: Italian and Spanish metastatic INES patients' data are reported. SPSS 20.0 was used for statistical analysis. RESULTS: Among 98 infants, 27 had events and 19 died, while 79 were disease free. Five- and 10-year event-free survival (EFS) were 73 and 70 %, and overall survival (OS) was 81 and 74 %, respectively. MYCN status was significant for EFS, but not for OS in multivariate analysis. CONCLUSIONS: The survival rates of patients who complied with all the inclusion criteria for INES trials are higher compared to those that included also not registered patients. Five-year EFS and OS for INES 99.2 were 87.8 and 95.7 %, while our stage 4s population obtained 78 and 87 %. Concerning 99.3, 5-year EFS and OS were 86.7 and 95.6 %, while for stage 4 we registered 61 and 68 %. MYCN amplification had a strong impact on prognosis and therefore we consider it unacceptable that many patients were not studied for MYCN and probably inadequately treated. Ten-year survival rates were shown to decrease: EFS from 73 to 70 % and OS from 81 to 74 %, indicating a risk of late events, particularly in stage 4s. Population-based registries like European ENCCA WP 11-task 11 will possibly clarify these data.
Assuntos
Biomarcadores Tumorais/genética , Ensaios Clínicos como Assunto , Amplificação de Genes , Proteína Proto-Oncogênica N-Myc/genética , Neuroblastoma/mortalidade , Criança , Pré-Escolar , Terapia Combinada , Feminino , Seguimentos , Humanos , Lactente , Recém-Nascido , Masculino , Estadiamento de Neoplasias , Neuroblastoma/genética , Neuroblastoma/secundário , Neuroblastoma/terapia , Prognóstico , Taxa de SobrevidaRESUMO
Desmin is the intermediate filament (IF) protein occurring exclusively in muscle and endothelial cells. There are other IF proteins in muscle such as nestin, peripherin, and vimentin, besides the ubiquitous lamins, but they are not unique to muscle. Desmin was purified in 1977, the desmin gene was characterized in 1989, and knock-out animals were generated in 1996. Several isoforms have been described. Desmin IFs are present throughout smooth, cardiac and skeletal muscle cells, but can be more concentrated in some particular structures, such as dense bodies, around the nuclei, around the Z-line or in costameres. Desmin is up-regulated in muscle-derived cellular adaptations, including conductive fibers in the heart, electric organs, some myopathies, and experimental treatments with drugs that induce muscle degeneration, like phorbol esters. Many molecules have been reported to associate with desmin, such as other IF proteins (including members of the membrane dystroglycan complex), nebulin, the actin and tubulin binding protein plectin, the molecular motor dynein, the gene regulatory protein MyoD, DNA, the chaperone alphaB-crystallin, and proteases such as calpain and caspase. Desmin has an important medical role, since it is used as a marker of tumors' origin. More recently, several myopathies have been described, with accumulation of desmin deposits. Yet, after almost 30 years since its identification, the function of desmin is still unclear. Suggested functions include myofibrillogenesis, mechanical support for the muscle, mitochondrial localization, gene expression regulation, and intracellular signaling. This review focuses on the biochemical interactions of desmin, with a discussion of its putative functions.
Assuntos
Humanos , Animais , Desmina/fisiologia , Desenvolvimento Muscular , Músculos/embriologia , Desmina/genética , Desmina/metabolismo , Imunofluorescência , Regulação da Expressão Gênica , Músculos/metabolismo , Doenças Musculares/metabolismoRESUMO
Desmin is the intermediate filament (IF) protein occurring exclusively in muscle and endothelial cells. There are other IF proteins in muscle such as nestin, peripherin, and vimentin, besides the ubiquitous lamins, but they are not unique to muscle. Desmin was purified in 1977, the desmin gene was characterized in 1989, and knock-out animals were generated in 1996. Several isoforms have been described. Desmin IFs are present throughout smooth, cardiac and skeletal muscle cells, but can be more concentrated in some particular structures, such as dense bodies, around the nuclei, around the Z-line or in costameres. Desmin is up-regulated in muscle-derived cellular adaptations, including conductive fibers in the heart, electric organs, some myopathies, and experimental treatments with drugs that induce muscle degeneration, like phorbol esters. Many molecules have been reported to associate with desmin, such as other IF proteins (including members of the membrane dystroglycan complex), nebulin, the actin and tubulin binding protein plectin, the molecular motor dynein, the gene regulatory protein MyoD, DNA, the chaperone alphaB-crystallin, and proteases such as calpain and caspase. Desmin has an important medical role, since it is used as a marker of tumors' origin. More recently, several myopathies have been described, with accumulation of desmin deposits. Yet, after almost 30 years since its identification, the function of desmin is still unclear. Suggested functions include myofibrillogenesis, mechanical support for the muscle, mitochondrial localization, gene expression regulation, and intracellular signaling. This review focuses on the biochemical interactions of desmin, with a discussion of its putative functions.
Assuntos
Desmina/fisiologia , Desenvolvimento Muscular , Músculos/embriologia , Animais , Desmina/genética , Desmina/metabolismo , Imunofluorescência , Regulação da Expressão Gênica , Humanos , Músculos/metabolismo , Doenças Musculares/metabolismoRESUMO
Objetivo. Aplicar y validar en una población chilena el "Indice de Función Sexual Femenina" establecido en el International Consensus Development Conference on Female Sexual Dysfunctions. Material y método. 383 mujeres sanas de 20 a 59 a¤os con actividad sexual, beneficiarias del Centro de Salud "Carol Urzúa". Instrumento: cuestionario de 19 preguntas, agrupadas en seis dominios: deseo, excitación, lubricación, orgasmo, satisfacción y dolor. Análisis estadístico: Se utilizó ANOVA, Kruskall-Wallis, Chi cuadrado, regresión logística y alpha de Cronbach. Resultados. Edad media: 35,3ñ10,9 a¤os, casadas (50,4 por ciento) o conviviente (17,0 por ciento), con educación media (48,2 por ciento). La consistencia interna del test fue buena (>0,70). La sexualidad logra su máxima expresión a los 35-40 a¤os (puntaje: 29,1ñ4,9) para caer posteriormente (21,0ñ6,0), especialmente el deseo y excitación. Después de los 44 a¤os se incrementa el riesgo de disfunción sexual (OR:3,6; IC: 2,1-6,3; p< 0,0001). La mayor educación y la estabilidad de pareja disminuyen el riesgo (OR: 0,45; IC:0,28-0,80; p< 0,005 y OR:0,58; IC:0,35-0,98; p< 0,05 respectivamente). Conclusiones. El Indice de Función Sexual Femenino es un instrumento sencillo de aplicar, con propiedades psicométricas adecuadas que permite evaluar la sexualidad en diferentes etapas de la vida. Es adecuado para estudios epidemiológicos y clínicos.
Assuntos
Humanos , Feminino , Comportamento Sexual/estatística & dados numéricos , Comportamento Sexual/psicologia , Disfunções Sexuais Psicogênicas/epidemiologia , SexualidadeRESUMO
The latex of 'Crown-of-Thorns' (Euphorbia milii var. hislopii, syn. E. splendens) has been shown to be a potent plant molluscicide that could be used against the snails which are intermediate hosts of Schistosoma trematodes. However, a comprehensive toxicological evaluation of the latex is necessary before its large-scale use in schistosomiasis control becomes possible. In fact, one cause for concern is the presence of tumor-promoting phorbol esters in several plants of the Euphorbiaceae family. Phorbol esters as well as a number of other known tumor promoters share the common property of inhibiting metabolic cooperation (i.e., exchange of low molecular weight molecules via gap junctions) between Chinese hamster V79 cells in monolayer cultures. The present study was undertaken to determine if latex of E. milii presents tumor promoter-like activity is this short-term in vitro assay. Samples of lyophilized E. milii latex were tested at a noncytotoxic concentration range (1, 10, 50 and 100 micrograms/ml) in three independent experiments. 12-O-Tetradecanoylphorbol-13-acetate (10 ng/ml) was used as positive control. In all three assays, E. milii latex consistently inhibited metabolic cooperation between V79 cells at concentrations > or = 10 micrograms/ml. These results that E. milii latex contains tumor-promoting substances. These findings suggest that the use of crude latex as a molluscicide may pose a carcinogenic hazard to people who are continuously exposed to the product.
Assuntos
Carcinógenos/metabolismo , Látex/farmacologia , Moluscocidas/metabolismo , Animais , Plantas , Ensaio Tumoral de Célula-TroncoRESUMO
The latex of 'Crown-of-Thoms'(Euphorbia miliivar. hislopii, syn. E. splendens) has been shown to be a potent plant molluscicide that could be used against the snails which are intermediate hosts of Schistosoma trematodes. However, a comprehensive toxicological evaluation of the latex is necessary before its large-scale use in schistosomiasis control becomes possible. In fact, one cause for concern is the presence of tumor-promoting phorbol esters in several plants of the Euphorbiaceae family. Phorbol esters as well as a number of other known tumor promoters share the common property of inhibiting metabolic cooperation (i.e., exchange of low molecular weight molecules via gap junctions) between Chinese hamster V79 cells in monolayer cultures. The present study was undertaken to determine if latex of E. milii presents tumor promoter-like activity in this shortterm in vitro assay. Samples of lyophilized E. milii latex were tested at a noncytotoxic concentration range (1, 10, 50 and 100 mug/ml) in three independent experiments. 12-0-Tetradecanoylphorbol-13-acetate (10 ng/ml) was used as positive control. In all three assays, E. milii latex consistently inhibited metabolic cooperation between V79 cells at concentrations (10 mug/ml. These results indicate that E. milii latex contains tumor-promoting substances. These findings suggest that the use of crude latex as a molluscicide may pose a carcinogenic hazard to people who are continuously exposed to the product.
Assuntos
Animais , Carcinógenos/metabolismo , Látex/farmacologia , Moluscocidas/metabolismo , Plantas , Ensaio Tumoral de Célula-TroncoRESUMO
The investigation on steroidic fraction of Uncaria tomentosa, commonly called Una de gato, showed the presence of beta-sitosterol (60%), stigmasterol, and campesterol. The percentage of sterols have been carried out by GLC. The spectroscopic data 1H-NMR and MS of the three compounds are also reported, with the beta-sitosterol as the main sterol. Preliminary pharmacological investigations prove a moderate antiinflammatory activity.
Assuntos
Anti-Inflamatórios/análise , Plantas Medicinais/análise , Esteróis/análise , PeruRESUMO
The sterol fraction of Adiantum capillus veneris contains beta-sito sterol, stigmasterol and capesterol identified by means of spectral data (1H-NMR and MS).