Influencia de las variables de personalidad en la adicción al trabajo en un estudio con profesores universitarios

Novenes Jornades de Foment de la Investigació de la FCHS (Any 2003-2004)Este trabajo examina las relaciones entre la Adicción al trabajo (Workaholism) y las dimensiones de personalidad Energía (E), Estabilidad Emocional (EE), Tesón (T), Afabilidad (A) y Apertura Mental (AM). Para ello, se ha evaluado a 51 sujetos en dichas variables. Los resultados han mostrado que sí existen unas características típicas de los adictos al trabajo; así, los adictos presentan una baja estabilidad emocional, alta escrupulosidad, alta apertura mental, en especial apertura a la cultura, y baja amabilidad. Estos resultados son similares a los hallazgos de investigaciones y estudios precedentes

Pharmacokinetics evaluation of nimotuzumab in combination with doxorubicin and cyclophosphamide in patients with advanced breast cancer

EGFr (Epidermal growth factor receptor) overexpression has been detected in many tumors of epithelial origin, specifically in breast cancer and it is often associated with tumor growth advantages and poor prognosis. The nimotuzumab is a genetically engineered humanized MAb (monoclonal antibody) that recognizes an epitope located in the extracellular domain of human EGFr. The aim of this study was to assess the pharmacokinetics of nimotuzumab in patients with locally advanced breast cancer who are receiving neoadyuvant therapy combined with the AC chemotherapy regimen (i.e., 60 mg/m2 of Doxorubicin and 600 mg/m2 of Cyclophosphamide in 4 cycles every 21 days). A single center, non-controlled, open Phase I clinical trial, with histopathological diagnosis of locally advanced stage III breast cancer, was conducted in 12 female patients. Three patients were enrolled at each of the following fixed dose levels: 50, 100, 200 and 400 mg/week. Multiple intermittent short-term intravenous infusions of nimotuzumab were administered weekly, except on weeks 1 and 10, when blood samples were drawn for pharmacokinetic assessments. Nimotuzumab showed dose-dependent kinetics. No anti-idiotypic response against nimotuzumab was detected in blood samples of participants. There was not interaction between the administration of nimotuzumab and chemotherapy at the dose levels studied. The optimal biological doses ranging were estimated to be 200 mg/weekly to 400 mg/weekly

Obesity Surgery Improves Hypogonadism and Sexual Function in Men without Effects in Sperm Quality

Obesity is associated with hypogonadism, sexual dysfunction, and impaired fertility in men. However, its effects on semen parameters or sexual function remain debatable. This paper involves a longitudinal study in men submitted for obesity surgery at a university tertiary hospital. Patients were studied at baseline and at 6, 12, and 18 months after obesity surgery. At each visit, anthropometry measures were collected and hormonal and semen parameters were studied. Sexual function was evaluated with the International Index of Erectile Function (IIEF). A total of 12 patients were included. The average body mass index of patients decreased from 42.37 ± 4.44 to 29.6 ± 3.77 kg/m 2 at 18 months after surgery (p < 0.05). Hormonal parameters improved after obesity surgery. The proportion of sperm cells with normal morphology tended to decrease from baseline and became most significant at 18 months (5.83 ± 4.50 vs. 2.82 ± 2.08). No significant changes were found in the remaining semen parameters. Erectile function improved significantly at six months after surgery. The authors believe that, in general, the effects of obesity surgery on fertility may be limited or even deleterious (at least in the short and midterm follow-up)

Soroprevalência da infecção pelo vírus da hepatite B em indivíduos com evidência clínica de hepatite em Goiânia, Goiás: detecção do DNA viral e determinação dos subtipos

The presence of serological markers for hepatitis B virus (HBsAg, anti-HBc IgM and Anti-HBc total) was investigated in the serum of 1,396 individuals who had clinical suspect of hepatitis. It was observed that 50.7% of the individuals were positive and, from the total of the studied individuals, 14.5% were positive for HBsAg. From these, 8.5% were also positive for anti-HBc IgM. The analysis in relation to gender showed a higher seroprevalence index among male individuals (p < 0.0001). It was observed the occurrence of subtypes adw2 (62.7%), ayw3 (23.5%), ayw2 (9.8%) and adw4 (3.9%). The viral DNA was detected in 61 (33.9%) HBsAg positive samples and in one sample positive only for anti-HBc total. These results indicate an important incidence of the HBV infection in this population, and reinforce previous studies regarding this virus in the central west region of Brazil.Investigou-se a presença dos marcadores sorológicos AgHBs, anti-HBc IgM e anti-HBc total no soro de 1.396 indivíduos com suspeita clínica de hepatite. Observou-se uma soroprevalência para a infecção pelo VHB de 50,7%, sendo que do total dos 1.396 indivíduos, 14,5% eram positivos para AgHBs e 8,5% eram também positivos para anti-HBc IgM, tendo ainda sido observado que a soroprevalência foi maior em indivíduos do sexo masculino (p < 0,0001). Por subtipagem foram identificados os seguintes subtipos: adw2 (62,7%), ayw3 (23,5%), ayw2 (9,8%) e adw4 (3,9%). O DNA viral foi detectado em 61 (33,9%) amostras positivas para o AgHBs e em uma amostra positiva somente para anti-HBc total. Estes resultados indicam importante índice de ocorrência da infecção pelo VHB nesta população e reforça dados de estudos anteriores a respeito da importante circulação do vírus na região Centro-Oeste do Brasil

Surtos de vírus Vaccinia-like nos Estados de São Paulo e Goiás, Brasil: detecção, isolamento e identificação viral

Since October 2001, the Adolfo Lutz Institute has been receiving vesicular fluids and scab specimens of patients from Paraíba Valley region in the São Paulo and Minas Gerais States and from São Patricio Valley, in the Goiás State. Epidemiological data suggested that the outbreaks were caused by Cowpox virus or Vaccinia virus. Most of the patients are dairy milkers that had vesiculo-pustular lesions on the hands, arms, forearms, and some of them, on the face. Virus particles with orthopoxvirus morphology were detected by direct electron microscopy (DEM) in samples of 49 (66.21%) patients of a total of 74 analyzed. Viruses were isolated in Vero cell culture and on chorioallantoic membrane (CAM) of embryonated chicken eggs. Among 21 samples submitted to PCR using primers for hemagglutinin (HA) gene, 19 were positive. Restriction digestion with TaqI resulted in four characteristic Vaccinia virus fragments. HA nucleotide sequences showed 99.9% similarity with Cantagalo virus, described as a strain of Vaccinia virus. The only difference observed was the substitution of one nucleotide in the position 616 leading to change in one amino acid of the protein in the position 206. The phylogenetic analysis showed that the isolates clustered together with Cantagalo virus, other Vaccinia strains and Rabbitpox virus.A partir de outubro de 2001, o Instituto Adolfo Lutz tem recebido amostras de líquido vesicular e crostas de lesões de pele de pacientes das regiões do Vale do Paraíba, Estado de São Paulo e do Vale do São Patricio, Estado de Goiás. Os dados clínicos e epidemiológicos sugeriam que os surtos poderiam ser causados por Cowpox virus ou Vaccinia virus. A maioria dos pacientes era ordenhadores que tinham lesões vesicopustulares nas mãos, braços, antebraços e alguns na face. A análise por microscopia eletrônica direta (MED) detectou partículas com morfologia de vírus do gênero Orthopoxvirus em amostras de 49 (66,21%) pacientes dos 74 analisados. Os vírus foram isolados em membrana corioalantóide (MCA) de ovo embrionado de galinha e em linhagem celular Vero com confirmação por MED e PCR. Das 21 amostras de lesões submetidas ao PCR utilizando iniciadores para o gene da hemaglutinina (HA), 19 foram positivas. A digestão por enzima de restrição TaqI resultou em quatro fragmentos característicos de Vaccinia virus. A análise nucleotídica do seqüenciamento revelou que esses vírus apresentam 99,9% de similaridade com o Cantagalo virus, descrito como uma cepa de Vaccinia virus, havendo apenas alteração de um nucleotídeo na posição 616 com mudança de um aminoácido na proteína na posição 206. A análise filogenética mostrou que os isolados se agruparam junto aos Cantagalo virus, outras cepas de Vaccinia virus e Rabbitpox virus

REASE – Rede regional de sensibilização dos serviços prestados pelos ecossistemas das pradarias de ervas marinhas e sapais na região do Algarve.

Projeto financiado pelo Fundo Ambiental da República PortuguesaA Rede de Educação Ambiental para os Serviços Ambientais (REASE) é uma iniciativa recentemente criada no Algarve, por instituições de pesquisa científica, educação, divulgação científica e uma ONG ambiental. O REASE tem como objetivo desenvolver projetos de educação ambiental na área dos Serviços Ecossistémicos (SE), especialmente aqueles gerados pela vegetação costeira, incluindo sapais e pradarias marítimas. Atualmente, a rede está trabalhando em: 1) capacitação de professores e gestores ambientais, a fim de promover o conhecimento científico sobre os serviços prestados pelos ecossistemas costeiros; 2) a criação de uma “incubadora de projetos” para poder desenvolver em escolas locais projetos SE inovadores de educação formal; 3) sensibilização dos estudantes e do público em geral sobre o papel dos ecossistemas para o bem-estar humano através de exposições e palestras em centros de divulgação científica; 4) publicação de um livro para crianças sobre SE de ervas marinhas, num processo participativo de base comunitária (ilustrações feitas por crianças nas escolas); 5) o lançamento de um projeto de Ciência Cidadã, para avaliar a produção de Carbono Azul no Algarve, envolvendo escolas que recebem kits de campo e de laboratório e respetivo apoio científico; 6) o desenvolvimento de uma aplicação móvel para fazer upload diretamente das medições de campo e dados do carbono azul no site do projeto, onde os dados são cientificamente validados e analisados.SFRH/BGCT/52704/2014 - REFORÇO DA INTERAÇÃO COM ENTIDADES EXTERNAS E RENOVAÇÃO DE ACTIVIDADES E DE CONTEÚDOS (SFRH/BGCT/52704/2014)info:eu-repo/semantics/publishedVersio

Applied diagnostics in liver cancer. Efficient combinations of sorafenib with targeted inhibitors blocking AKT/mTOR

Hepatocellular carcinoma (HCC) is the third most common cause of cancer-related deaths worldwide. There is increasing interest in developing specific markers to serve as predictors of response to sorafenib and to guide targeted therapy. Using a sequencing platform designed to study somatic mutations in a selection of 112 genes (HepatoExome), we aimed to characterize lesions from HCC patients and cell lines, and to use the data to study the biological and mechanistic effects of case-specific targeted therapies used alone or in combination with sorafenib. We characterized 331 HCC cases in silico and 32 paired samples obtained prospectively from primary tumors of HCC patients. Each case was analyzed in a time compatible with the requirements of the clinic (within 15 days). In 53% of the discovery cohort cases, we detected unique mutational signatures, with up to 34% of them carrying mutated genes with the potential to guide therapy. In a panel of HCC cell lines, each characterized by a specific mutational signature, sorafenib elicited heterogeneous mechanistic and biological responses, whereas targeted therapy provoked the robust inhibition of cell proliferation and DNA synthesis along with the blockage of AKT/mTOR signaling. The combination of sorafenib with targeted therapies exhibited synergistic anti-HCC biological activity concomitantly with highly effective inhibition of MAPK and AKT/mTOR signaling. Thus, somatic mutations may lead to identify case-specific mechanisms of disease in HCC lesions arising from multiple etiologies. Moreover, targeted therapies guided by molecular characterization, used alone or in combination with sorafenib, can effectively block important HCC disease mechanisms.FUNDING: Grants from ISCIII, co-financed by the European Union (FEDER) (PI16/00156), Ramón and Cajal research program from MINECO (RYC-2013-14097) and FUNDACIÓN LUCHAMOS POR LA VIDA to JPV. Grants from ISCIII (RD06/0020/0107-RD012/0036/0060) to MAP. Grant from ISCIII (Ref. PIE15/00079) to JC & JPV. NGD is a recipient of a UC-IDIVAL pre-doctoral fellow. I.V. was also supported by the Ramón and Cajal research program

Steroid hormone-related polymorphisms associate with the development of bone erosions in rheumatoid arthritis and help to predict disease progression: Results from the REPAIR consortium

Here, we assessed whether 41 SNPs within steroid hormone genes associated with erosive disease. The most relevant finding was the rheumatoid factor (RF)-specific effect of the CYP1B1, CYP2C9, ESR2, FcγR3A, and SHBG SNPs to modulate the risk of bone erosions (P = 0.004, 0.0007, 0.0002, 0.013 and 0.015) that was confirmed through meta-analysis of our data with those from the DREAM registry (P = 0.000081, 0.0022, 0.00074, 0.0067 and 0.0087, respectively). Mechanistically, we also found a gender-specific correlation of the CYP2C9rs1799853T/T genotype with serum vitamin D3 levels (P = 0.00085) and a modest effect on IL1β levels after stimulation of PBMCs or blood with LPS and PHA (P = 0.0057 and P = 0.0058). An overall haplotype analysis also showed an association of 3 ESR1 haplotypes with a reduced risk of erosive arthritis (P = 0.009, P = 0.002, and P = 0.002). Furthermore, we observed that the ESR2, ESR1 and FcγR3A SNPs influenced the immune response after stimulation of PBMCs or macrophages with LPS or Pam3Cys (P = 0.002, 0.0008, 0.0011 and 1.97•10−7). Finally, we found that a model built with steroid hormone-related SNPs significantly improved the prediction of erosive disease in seropositive patients (PRF+ = 2.46•10−8) whereas no prediction was detected in seronegative patients (PRF− = 0.36). Although the predictive ability of the model was substantially lower in the replication population (PRF+ = 0.014), we could confirm that CYP1B1 and CYP2C9 SNPs help to predict erosive disease in seropositive patients. These results are the first to suggest a RF-specific association of steroid hormone-related polymorphisms with erosive disease

Clinical characteristics and outcomes of thymoma-associated myasthenia gravis

[Background and purpose] Prognosis of myasthenia gravis (MG) in patients with thymoma is not well established. Moreover, it is not clear whether thymoma recurrence or unresectable lesions entail a worse prognosis of MG.[Methods] This multicenter study was based on data from a Spanish neurologist-driven MG registry. All patients were aged >18 years at onset and had anti-acetylcholine receptor antibodies. We compared the clinical data of thymomatous and nonthymomatous patients. Prognosis of patients with recurrent or nonresectable thymomas was assessed.[Results] We included 964 patients from 15 hospitals; 148 (15.4%) had thymoma-associated MG. Median follow-up time was 4.6 years. At onset, thymoma-associated MG patients were younger (52.0 vs. 60.4 years, p < 0.001), had more generalized symptoms (odds ratio [OR]: 3.02, 95% confidence interval [CI]: 1.95–4.68, p < 0.001) and more severe clinical forms according to the Myasthenia Gravis Foundation of America (MGFA) scale (OR: 1.6, 95% CI: 1.15–2.21, p = 0.005). Disease severity based on MGFA postintervention status (MGFA-PIS) was higher in thymomatous patients at 1 year, 5 years, and the end of follow-up. Treatment refractoriness and mortality were also higher (OR: 2.28, 95% CI: 1.43–3.63, p = 0.001; hazard ratio: 2.46, 95% CI: 1.47–4.14, p = 0.001). Myasthenic symptoms worsened in 13 of 27 patients with recurrences, but differences in long-term severity were not significant. Fifteen thymomatous patients had nonresectable thymomas with worse MGFA-PIS and higher mortality at the end of follow-up.[Conclusions] Thymoma-associated MG patients had more severe myasthenic symptoms and worse prognosis. Thymoma recurrence was frequently associated with transient worsening of MG, but long-term prognosis did not differ from nonrecurrent thymoma. Patients with nonresectable thymoma tended to present severe forms of MG.This work is supported by Fondo de Investigaciones Sanitarias (FIS) grant FIS19/01774, Instituto de Salud Carlos III and cofunded by the European Union (ERDF/ESF, A Way to Make Europe/Investing in Your Future). Rodrigo Álvarez-Velasco was supported by a PhD for Medical Doctors grant from the Pla Estratègic de Recerca i Innovació en Salut (PERIS), Generalitat de Catalunya (SLT008/18/00207). Elena Cortés-Vicente was supported by a Juan Rodés grant (JR19/00037) from the Fondo de Investigación en Salud, Instituto de Salud Carlos III, Ministry of Health (Spain).Peer reviewe

práticas artísticas no ensino básico e secundário

Arte invisível: A relação entre arte e sociedade é mediada pelos artistas e pelos educadores. Entre uns e outros há um segredo que nenhum deles partilha. Os artistas conseguem ensinar as gerações que ainda não nasceram, os educadores conseguem dar sentido aos novos públicos que já nasceram, aqui e agora, e formar os novos artistas. Não devia ser assim tão difícil falar de arte, ou melhor, de educação artística. Poderia ser mais transparente a sua necessidade, devia ser óbvia a sua utilidade, devia ser evidente o seu benefício. Porque é tão elusiva? Porque foge do aprisionamento das didáticas? A chave encontra-se do lado dos professores, pela razão de serem eles a formar os públicos e a formarem os próprios artistas de entre estes públicos. A exigência torna-se clara, o investimento na formação exige novidade, introspeção, inovação, crítica, criaçã. A educação artística olha-se de modo renovado, espantado, interventivo, inovador: está tudo por fazer, suspeitam os seus agentes, ao mesmo tempo que os decisores dela desinvestem continuadamente, visando indicadores contáveis. As cargas horárias são reduzidas, confunde-se criatividade com empreendedorismo, cultura com capital. Tem-se assim um contexto de crise na Educação Artística, que é também o desafio. Para isso pede-se um professor que possa ser ao mesmo tempo artista e criador, uma formação mais profissionalizada nos domínios artísticos, uma maior intervenção dos artistas junto das escolas, um apoio às redes colaborativas e às intervenções de disseminação.info:eu-repo/semantics/publishedVersio