Os Açores e os impérios : séculos XV a XX

[...]. Os Açores não constituem simplesmente um elo da correspondência transatlântica. Aliás, possuem uma identidade bem complexa. Com efeito, se a História evidencia muito a mundividência, apresentando as ilhas como o centro do Mundo, já a literatura ressalta muito o isolamento, resultante do afastamento dos continentes e da descontinuidade territorial, apresentando as ilhas como o fim do Mundo. Curiosamente, a política e os políticos, talvez com maior sentido do pragmatismo e da oportunidade, agem em função das circunstâncias. De facto, proclamam a projecção da universalidade, quando reivindicam mais capacidade de auto-governo, mas insistem na pobreza da ultraperifericidade, quando exigem mais contrapartidas financeiras. Apesar da divergência das perspectivas, atentemos mais na universalidade dos Açores, que historicamente influi na definição das dinâmicas do Atlântico, conferindo maior projecção à Europa

ASSISTÊNCIA DE ENFERMAGEM NA ATENÇÃO PRIMÁRIA À SAÚDE DE ADOLESCENTES COM IDEAÇÕES SUICIDAS

RESUMO Objetivo: compreender como se dá a assistência à saúde prestada pelos enfermeiros na atenção primária aos adolescentes com ideações suicidas. Método: pesquisa com abordagem qualitativa, realizada em oito unidades básicas de saúde (UBS), de um município de médio porte do Nordeste brasileiro. A coleta de dados deu-se por meio de entrevistas seguindo um roteiro norteador com oito enfermeiros do setor. O material foi analisado de acordo com a técnica de análise de conteúdo de Bardin. Resultados: diante disso, três categorias foram evidenciadas - assistência de Enfermagem à atenção integral aos adolescentes; conhecimento dos profissionais sobre suicídio; concepções, identificação e prevenção e desafios na assistência do adolescente com ideações suicidas. Destaca-se, ainda, a falta de planejamento e de ações para a demanda de saúde mental dos adolescentes, focando em ações biologicistas, como: sexualidade, gravidez na adolescência e infecções sexualmente transmissíveis para adolescentes mulheres. Os enfermeiros têm dificuldades em compreender, identificar e prevenir os sinais de ideações suicidas, pautando sua prática em experiências empíricas. Conclusões: dessa forma, torna-se necessário que o enfermeiro da atenção primária conheça o território e o perfil de saúde dos adolescentes. Somado a isso, a educação permanente deve permitir a construção de novos saberes necessários para abordar o tema na prática do enfermeiro, bem como dos demais profissionais que atuam na atenção primária. Sugere-se que a área da saúde mental seja fortalecida na formação do enfermeiro, visto que o suicídio em jovens vem aumentando e requer, portanto, assistência integral da Enfermagem aos adolescentes

Effectiveness of DNA-recombinant anti-hepatitis B vaccines in blood donors: a cohort study

<p>Abstract</p> <p>Background</p> <p>Although various studies have demonstrated efficacy of DNA-recombinant anti-hepatitis B vaccines, their effectiveness in health care settings has not been researched adequately. This gap is particularly visible for blood donors, a group of significant importance in the reduction of transfusion-transmitted hepatitis B.</p> <p>Methods</p> <p>This is a double cohort study of 1411 repeat blood donors during the period 1998–2002, involving a vaccinated and an unvaccinated cohort, with matching of the two in terms of sex, age and residence. Average follow-up was 3.17 person-years. The outcome measure was infection with hepatitis B virus (HBV), defined by testing positive on serologic markers HBsAg or anti-HBC. All blood donors were from the blood bank in Joaçaba, federal state of Santa Catarina, Brazil.</p> <p>Results</p> <p>The cohorts did not differ significantly regarding sex, age and marital status but the vaccinated cohort had higher mean number of blood donations and higher proportion of those residing in the county capital Joaçaba. Hepatitis B incidences per 1000 person-years were zero among vaccinated and 2,33 among non-vaccinated, resulting in 100% vaccine effectiveness with 95% confidence interval from 30,1% to 100%. The number of vaccinated persons necessary to avoid one HBV infection in blood donors was estimated at 429 with 95% confidence interval from 217 to 21422.</p> <p>Conclusion</p> <p>The results showed very high effectiveness of DNA-recombinant anti-HBV vaccines in blood donors. Its considerable variation in this study is likely due to the limited follow-up and the influence of confounding factors normally balanced out in efficacy clinical trials.</p

Evaluation of Arylimidamides DB1955 and DB1960 as Candidates against Visceral Leishmaniasis and Chagas' Disease: In Vivo Efficacy, Acute Toxicity, Pharmacokinetics, and Toxicology Studies

Arylimidamides (AIAs) have shown outstanding in vitro potency against intracellular kinetoplastid parasites, and the AIA 2,5-bis[2-(2-propoxy)-4-(2-pyridylimino)aminophenyl]furan dihydrochloride (DB766) displayed good in vivo efficacy in rodent models of visceral leishmaniasis (VL) and Chagas' disease. In an attempt to further increase the solubility and in vivo antikinetoplastid potential of DB766, the mesylate salt of this compound and that of the closely related AIA 2,5-bis[2-(2-cyclopentyloxy)-4-(2-pyridylimino)aminophenyl]furan hydrochloride (DB1852) were prepared. These two mesylate salts, designated DB1960 and DB1955, respectively, exhibited dose-dependent activity in the murine model of VL, with DB1960 inhibiting liver parasitemia by 51% at an oral dose of 100 mg/kg/day × 5 and DB1955 reducing liver parasitemia by 57% when given by the same dosing regimen. In a murine Trypanosoma cruzi infection model, DB1960 decreased the peak parasitemia levels that occurred at 8 days postinfection by 46% when given orally at 100 mg/kg/day × 5, while DB1955 had no effect on peak parasitemia levels when administered by the same dosing regimen. Distribution studies revealed that these compounds accumulated to micromolar levels in the liver, spleen, and kidneys but to a lesser extent in the heart, brain, and plasma. A 5-day repeat-dose toxicology study with DB1960 and DB1955 was also conducted with female BALB/c mice, with the compounds administered orally at 100, 200, and 500 mg/kg/day. In the high-dose groups, DB1960 caused changes in serum chemistry, with statistically significant increases in serum blood urea nitrogen, lactate dehydrogenase, aspartate aminotransferase, and alanine aminotransferase levels, and a 21% decrease in body weight was observed in this group. These changes were consistent with microscopic findings in the livers and kidneys of the treated animals. The incidences of observed clinical signs (hunched posture, tachypnea, tremors, and ruffled fur) were more frequent in DB1960-treated groups than in those treated with DB1955. However, histopathological examination of tissue samples indicated that both compounds had adverse effects at all dose levels.This work was supported by a grant from the Bill and Melinda Gates Foundation, contract N01-AI-60011 with SRI International from the National Institute of Allergy and Infectious Diseases, FIOCRUZ, and by Fundação Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ) PPSUS, APQ1, and Pensa-Rio (16/2009-E-26/110-313/2010), Conselho Nacional Desenvolvimento científico e Tecnológico (CNPq), PDTIS/FIOCRUZ, and PROEP. We thank the other members of the Consortium for Parasitic Drug Development for helpful discussions

CARACTERÍSTICAS DE UMA FAVELA DA REGIÃO DA GRANDE SÃO PAULO

Os autores descrevem os resultados de um levantamento de condições sócio-sanitárias jeito em uma favela da Região da Grande São Paulo, área industrializada do sudeste brasileiro.The authors describe results of a survey on social-economical conditions of a slum area of Greater São Paulo, wich is an industrial region of south-eastern Brazil

Hypotensive effect and endothelium-dependent vascular action of leaves of Alpinia purpurata (Vieill) K. Schum

The aims of this study were to evaluate the chemical profile, vascular reactivity, and acute hypotensive effect (AHE) of the ethanolic extract of leaves of Alpinia purpurata (Vieill) K. Schum (EEAP). Its chemical profile was evaluated using HPLC-UV, ICP-OES, and colorimetric quantification of total flavonoids and polyphenols. The vascular reactivity of the extract was determined using the mesenteric bed isolated from WKY. AHE dose-response curves were obtained for both EEAP and inorganic material isolated from AP (IAP) in WKY and SHR animals. Cytotoxic and mutagenic safety levels were determined by the micronucleus test. Rutin-like flavonoids were quantified in the EEAP (1.8 ± 0.03%), and the total flavonoid and polyphenol ratios were 4.1 ± 1.8% and 5.1 ± 0.3%, respectively. We observed that the vasodilation action of EEAP was partially mediated by nitric oxide (·NO). The IAP showed the presence of calcium (137.76 ± 4.08 μg mg-1). The EEAP and IAP showed an AHE in WKY and SHR animals. EEAP did not have cytotoxic effects or cause chromosomic alterations. The AHE shown by EEAP could result from its endothelium-dependent vascular action. Rutin-like flavonoids, among other polyphenols, could contribute to these biological activities, and the calcium present in EEAP could act in a synergistic way