ERICA: início da vida sexual e contracepção em adolescentes brasileiros

OBJECTIVE To estimate the prevalence of sexual initiation and contraceptive use at the last sexual intercourse of Brazilian adolescents, according to sociodemographic features. METHODS The data were obtained from the Study of Cardiovascular Risks in Adolescents (ERICA), a national school-based cross-sectional study. We included 74,589 adolescents from 32 geographic strata (27 capitals and five sets of municipalities with more than 100,000 inhabitants of each of the five macro-regions of the Country). Information on sexual initiation and contraceptive use at the last sexual intercourse (male condom and oral contraceptive pill) has been used. We have estimated prevalence and confidence intervals (95%CI) considering sample weights according to sex, age, type of school, residence status, macro-region and capitals. RESULTS We observed that 28.1% (95%CI 27.0-29.2) of the adolescents had already initiated sexual life, with higher prevalence among those aged 17 years (56.4%, 95%CI 53.9-58.9), males (33.5%, 95%CI 31.8-35.2), studying at public schools (29.9%, 95%CI 28.5-31.4), and from the Northern region (33.9%, 95%CI 32.3-35.4), mainly from Macapa, Manaus, and Rio Branco. Among those who had started their sexual life, 82.3% (95%CI 81.1-83.4) reported the use of contraceptive methods at the last intercourse, and the prevalence of use was higher among adolescents aged 17 years (85.3%, 95%CI 82.7-87.6), females (85.2%, 95%CI 83.8-86.5) and those living in the Southern region (85.9%, 95%CI 82.9-88.5). Male condom was used by 68.8% (95%CI 66.9-70.7), with no difference by type of school or macro-regions; the contraceptive pill was used by 13.4% (CI95% 12.2-14.6), and more frequently used among women (24.7%, 95%CI 22.5-27,0) and 17-year-old adolescents (20.8%, 95%CI 18.2-23.6) from urban settings(13.7%, 95%CI 12.5-14.9) and from the Southern region (22.6%, 95%CI 19.0-26.8), and less often in the Northern region. CONCLUSIONS ERICA’s data analysis on sexuality and contraception shows heterogeneities in the prevalence of sexual initiation and use of contraceptive methods among Brazilian adolescents, depending on their age, where they live, and the type of school they study at. Younger adolescents and those living in the Northern region seem to be more vulnerable to the consequences of unprotected sexual intercourses.OBJETIVO Estimar prevalências de iniciação sexual e uso de métodos contraceptivos na última relação sexual de adolescentes brasileiros, segundo características sociodemográficas. MÉTODOS Os dados foram obtidos do Estudo de Riscos Cardiovasculares em Adolescentes (ERICA), estudo transversal nacional de base escolar. Foram incluídos 74.589 adolescentes provenientes de 32 estratos geográficos (27 capitais e cinco conjuntos de municípios com mais de 100 mil habitantes de cada uma das cinco macrorregiões do País). Utilizaram-se informações sobre iniciação sexual e uso de métodos contraceptivos na última relação sexual (preservativo masculino e pílula anticonceptiva oral). Estimaram-se prevalências e intervalos de confiança (IC95%) das variáveis de interesse considerando pesos amostrais e segundo sexo, idade, tipo de escola, situação de residência, macrorregião e capitais. RESULTADOS Observou-se que 28,1% (IC95% 27,0-29,2) dos adolescentes tinham iniciado a vida sexual, com maior prevalência naqueles com 17 anos (56,4%, IC95% 53,9-58,9), no sexo masculino (33,5%, IC95% 31,8-35,2), em escolas públicas (29,9%, IC95% 28,5-31,4) e na região Norte (33,9%, IC95% 32,3-35,4), destacando-se em Macapá, Manaus e Rio Branco. Entre adolescentes que tinham iniciado a vida sexual, 82,3% (IC95% 81,1-83,4) referiram uso de métodos contraceptivos na última relação sexual, sendo a prevalência de uso maior entre adolescentes com 17 anos de idade (85,3%, IC95% 82,7-87,6), mulheres (85,2%, IC95%:83,8-86,5) e residentes na região Sul (85,9%, IC95% 82,9-88,5). O preservativo masculino foi usado por 68,8% (IC95% 66,9-70,7), sem diferença por tipo de escola ou macrorregiões. Pílula anticoncepcional foi utilizada por 13,4% (IC95% 12,2-14,6), sendo mais frequente entre mulheres (24,7%, IC95% 22,5-27,0), adolescentes de 17 anos (20,8%, IC95% 18,2-23,6), da área urbana (13,7%, IC95% 12,5-14,9) e da região Sul (22,6%, IC95% 19,0-26,8), e menos frequente na região Norte. CONCLUSÕES A análise dos dados sobre sexualidade e contracepção do ERICA mostra que há heterogeneidades nas prevalências de iniciação sexual e uso de métodos contraceptivos entre os adolescentes brasileiros, a depender de sua idade, de onde vivem e do tipo de escola que frequentam. Adolescentes mais novos e residentes na região Norte parecem ser os mais vulneráveis às consequências das práticas sexuais não protegidas

Adultos com fraturas: das implicações funcionais e cirúrgicas à educação em saúde

Este estudo objetivou identificar as implicações funcionais e cirúrgicas relativas a pacientes adultos com fraturas, caracterizar o perfil sociodemográfico da amostra do estudo, avaliar a independência funcional das vítimas de fraturas e discutir as implicações relacionadas aos procedimentos cirúrgicos envolvidos no tratamento a esses pacientes. A pesquisa foi realizada entre novembro de 2006 e abril de 2007 com 74 pacientes internados em um hospital de São Paulo. Foram predominantes indivíduos do sexo masculino (91,9%), média de idade de 31,8 anos, brancos (51,3%), vítimas de acidentes de trabalho (51,4%). As fraturas de membros inferiores representaram 73,0% dos casos e membros superiores 13,5%. Os acidentes automobilísticos foram responsáveis por 58,1% das internações. Quanto à Medida de Independência Funcional (MIF), houve aumento nas médias dos valores no decorrer da avaliação. Por outro lado, há diminuição desses valores em casos de acidentes automobilísticos e atropelamentos e naqueles em que os membros inferiores são atingidos.Este estudio tuvo como objetivo identificar las implicaciones funcionales y quirúrgicas de adultos con fracturas, caracterizar el perfil demográfico de la muestra del estudio, evaluar la independencia funcional de las víctimas de fracturas y discutir las implicaciones relativas a los procedimientos quirúrgicos implicados en el tratamiento de estos pacientes. La encuesta fue realizada entre noviembre de 2006 y abril de 2007 con 74 pacientes ingresados en un hospital de Sao Paulo. Varones fueron predominantes (91,9%), edad promedio 31,8 años, blancos (51,3%), víctimas de accidentes (51,4%). Las fracturas de extremidades inferiores representaron el 73,0% de los casos y de extremidades superiores 13,5%. Los accidentes fueron responsables por 58,1% de los ingresos. Cuanto a la Medida de Independencia Funcional (MIF), hubo un aumento en los valores medios durante la evaluación. Por otra parte, hay una disminución de estos valores en casos de accidentes, atropellamientos y en aquellos cuyos miembros inferiores son lesionados.This study aimed to identify the functional and surgical implications for adult patients with fractures, characterizing the demographic profile of the study sample, to assess the functional independence of victims of fractures and discuss the implications related to surgical procedures involved in treating these patients. The survey was conducted between November 2006 and April 2007 with 74 patients admitted to a hospital in Sao Paulo. Male subjects were predominant (91.9%), mean age 31.8 years, whites (51.3%), victims of accidents (51.4%). Fractures of lower limbs accounted for 73.0% of cases and upper limbs 13.5%. The accidents were responsible for 58.1% of admissions. Regarding Functional Independence Measure (FIM), there was an increase in mean values of FIM during the evaluation. Moreover, there is a decrease of these values in cases of accidents and pedestrian accidents and in those whose limbs are affected

Efeito acaricida de óleos essenciais e concentrados emulsionáveis de Eucalyptus spp em Boophilus microplus

Biocide action of Eucalyptus citriodora, Eucalyptus globulus and Eucalyptus staigeriana were studied against Boophilus microplus tick, aiming the production of an environmentally and ecologically conect and len harmpol acaricide. Essential oil emulsion of three Eucaliptus species were tested in five different concentrations against larvae and engorged female of B. microplus. Oils were submitted to gas chromatograph coupled to mass spectrometer (GC/MS) analysis looking for its composition. Citronelal is the major component of E. citriodora essential oil, being responsible for its acaricide action. The same happens with 1.8-cineole in E. globulus. In E. staigeriana, there are many substances involved in a synergic action against B. microplus. E. citriodora essential oil killed all ticks in an average concentration of 17.5% as compared to E. globulus with 15% and E. staigeriana with 12.5%. E. globulus concentrated emulsion killed all ticks in an average concentration of 9.9% and E. staigeriana in a concentration of 3.9%. Further steps will be pursued to make those essential oils to be tested under field conditions and available to the farmers, since bioacaricides has commercial appeal, allowing B. microplus control in a less aggressive way to the environment.Realizou-se um estudo sobre a ação biocida de Eucalyptus citriodora, Eucalyptus globulus e Eucalyptus staigeriana no carrapato Boophilus microplus, buscando-se a produção de acaricidas menos agressivos ao meio ambiente. Os óleos essenciais das três espécies e os concentrados emulsionáveis de E. globulus e E. staigeriana foram testados em cinco concentrações diferentes contra larvas e fêmeas ingurgitadas de B. microplus. Os óleos foram submetidos à análise por cromatografia gasosa acoplada à espectrometria de massas (CG/EM), a fim de se investigar sua composição. O citronelal é o principal componente do óleo de E. citriodora, sendo responsável por sua ação acaricida. O mesmo ocorre com o 1,8-cineol em E. globulus. Em E. staigeriana existem várias substâncias que agem sinergicamente contra B. microplus. O óleo essencial de E. citriodora matou 100% dos carrapatos a uma concentração média de 17,5%, o de E. globulus a 15% e o de E. staigeriana a 12,5%. Os concentrados emulsionáveis de E. globulus mataram 100% dos carrapatos a uma concentração média de 9,9% e o de E. staigeriana a uma concentração de 3,9%. O desenvolvimento de produtos que possam ser testados a campo e comercializados a preços competitivos serão passos a serem seguidos. Os biocarrapaticidas têm um apelo comercial grande, permitindo controlar B. microplus de um modo menos agressivo ao meio ambiente

Colecting the collector: the shortest way to humanization of assistance

INTRODUÇÃO: o acolhimento tem se constituído num potente disparador de mudanças. Este trabalho reflete a satisfação experimentada, resultante da atuação num ambiente altamente sinérgico e produtivo. OBJETIVO: implantação e implementação da assistência materno-neonatal a partir do acolhimento ao cliente interno. MÉTODO: realizou-se observação direta do cotidiano em setores distintos do Hospital Maternidade Interlagos (HMI) -SES/SP e seu Ambulatório. Foram realizadas entrevistas semi-estruturadas com dois profissionais da equipe multidisciplinar, as quais subsidiaram oficinas de humanização no ambiente hospitalar. Os profissionais foram divididos em áreas de exercício profissional, da administrativa à assistencial. RESULTADOS: ocorreu implantação do Comitê de Acolhimento e Humanização da Assistência Materno-Neonatal no Hospital Maternidade Interlagos, com participação dos líderes de acolhimento na gerência institucional, provendo melhor desempenho individual e coletivo no exercício laboral na Unidade Hospitalar.INTRODUCTION: the shelter consists in a powerful cause of changes. This work reflects the experimented satisfaction, outcome of the performance in a synergic and highly productive environment. OBJECTIVE: to implant the maternal-neonatal assistance from the shelter to the internal customer. METHOD: direct daily observation of in distinct sectors of the Hospital the Maternity Interlagos (HMI) - SES/SP and its out patient sector was performed. Two members of the multidisciplinary team nade semistructured interviews that supported humanization in the hospital environment. The professionals were divided by areas of professional exercise, from the administrative to the assistencial work. RESULTS: implantation of a Collection and Humanization Committee of the Maternal Assistance occurred in the Hospital Interlagos Maternity, with participation of the leaders of shelter in the institutional management, this providing better individual and collective performance in the activities in the Hospital

CORE BIOPSY NO DIAGNÓSTICO PRÉ-OPERATÓRIO DE CÃES PORTADORES DE NÓDULOS CUTÂNEOS DE ORIGEM EPITELIAL

Skin tumors are the most common neoplasms in dogs and there are several classifications of them. This study aimed to evaluate the accuracy of cut needle Super Core II® (14-ga x 9cm) in the histopathologic diagnosis of cutaneous nodules of epithelial origin in dogs when compared with the histopathologic findings of surgical specimens analyzed. A total of 32 skin nodes were histologically analyzed. The biopsy specimens and skin nodules were classified according to the World Health Organization (WHO) and there were 71,87% of nodes identified as neoplasms. To diagnose neoplasms, the core biopsy showed 85.2% sensitivity, 100% specificity, a positive predictive value of 100%, and a negative predictive value of 55.55%. The Fisher exact test showed p<0.0001 for the identification of neoplasms and malignant tumors, which confirms the concordance between the results obtained by both methods in the classification of tumors. Therefore, the biopsy is an effective method for the classification of cutaneous tumors of epithelial origin.As neoplasias cutâneas são as mais comuns em cães e são diversas as suas classificações. O objetivo deste estudo foi avaliar a acurácia da agulha de corte Super Core II® (14-ga x 9cm) no diagnóstico histopatológico de nódulos cutâneos de origem epitelial em cães, quando comparada aos resultados histopatológicos das peças cirúrgicas analisadas. Foram analisados histologicamente 32 nódulos cutâneos. Os espécimes de biópsia e nódulos cutâneos foram classificados segundo a World Health Organization (WHO) e 71,87% dos nódulos foram identificados como neoplasias. A core biopsy mostrou sensibilidade de 85,2%, especificidade de 100%, valor preditivo positivo de 100% e valor preditivo negativo de 55,55% para o diagnóstico de neoplasias. O teste exato de Fisher revelou p<0,0001 para a identificação de neoplasias e de tumores malignos, confirmando que houve concordância dos resultados obtidos pelos dois métodos na classificação dos tumores. Sendo assim, esta biópsia é um método eficaz para a classificação de tumores cutâneos de origem epitelial

Equine ovarian tissue xenografting: impacts of cooling, vitrification, and VEGF.

Ovarian tissue transplantation methods using cooled and cryopreserved samples have been attractive options for fertility preservation in animal models and humans. The aim of this study was to evaluate the impact of previous exposure to cooling, cryopreservation, and VEGF on the overall efficiency of equine ovarian tissue after heterotopic xenotransplantation in mice. The end points evaluated were follicular morphology and development, follicular and stromal cell densities, angiogenesis (i.e. the density of new and mature blood vessels), collagen types I and III fiber densities, and total fibrosis. Ovaries of adult mares were harvested after ovariectomy, and ovarian fragments were xenografted in the i.p. wall of BALB nude mice. Ten types of treatments involving different combinations of cooling, cryopreservation, xenografting procedures, and VEGF exposure were compared. The novel aspect of this study was the use of equine ovarian tissue xenotransplantation in mice, challenging the fragments with different combinations of treatments. The main findings were (i) cooling but not cryopreservation was effective in preserving the follicular morphology, (ii) a greater percentage of developing follicles but lower follicular and stromal cell densities were observed after ovarian tissue engraftment, (iii) exposure to VEGF increased new and mature vessels in cryopreserved-transplanted tissue, and (iv) an appropriate balance in the collagen types I and III fiber ratio in cooling-transplanted tissue was observed after exposure to VEGF. This study contributes to advancing knowledge in the preservation of ovarian tissue after cooling-cryopreservation and transplantation aiming to be applied to genetically superior/valuable horses, livestock, endangered animals, and, possibly, humans. LAY SUMMARY: Due to ethical limitations involving humans, the female horse (mare) has recently emerged as an alternative model for reproductive comparisons with women to optimize fertility restoration using ovarian tissue transplantation techniques. This study determined if ovarian tissue from donor mares (n = 3), exposed or not to vascular endothelial growth factor (VEGF) before transplantation, better survives for 7 days after transplantation into mouse hosts (n = 12). Tissues submitted to different combinations of cooling, freezing, and transplanting treatments, along with control groups, were evaluated using the parameters morphology, development, the density of immature eggs (follicles), the density of supportive (stromal) cells, collagen protein proportions, and density of blood vessels. Frozen-thawed treatments had lower percentages of normal follicles. Exposure to VEGF increased blood vessel densities in frozen tissue and favored adequate collagen levels in cooled-transplanted treatments. In conclusion, VEGF exposure seems to be beneficial for mare ovarian tissue transplantation and warrants further investigation

Subversion of early innate antiviral responses during antibody-dependent enhancement of Dengue virus infection induces severe disease in immunocompetent mice

Dengue is a mosquito-borne disease caused by one of four serotypes of Dengue virus (DENV-1–4). Epidemiologic and observational studies demonstrate that the majority of severe dengue cases, dengue hemorrhagic fever and dengue shock syndrome (DHF/DSS), occurs predominantly in either individuals with cross-reactive immunity following a secondary heterologous infection or in infants with primary DENV infections born from dengue-immune mothers, suggesting that B-cell-mediated and antibody responses impact on disease evolution. We demonstrate here that B cells play a pivotal role in host responses against primary DENV infection in mice. After infection, μMT[superscript −/−] mice showed increased viral loads followed by severe disease manifestation characterized by intense thrombocytopenia, hemoconcentration, cytokine production and massive liver damage that culminated in death. In addition, we show that poly and monoclonal anti-DENV-specific antibodies can sufficiently increase viral replication through a suppression of early innate antiviral responses and enhance disease manifestation, so that a mostly non-lethal illness becomes a fatal disease resembling human DHF/DSS. Finally, treatment with intravenous immunoglobulin containing anti-DENV antibodies confirmed the potential enhancing capacity of subneutralizing antibodies to mediate virus infection and replication and induce severe disease manifestation of DENV-infected mice. Thus, our results show that humoral responses unleashed during DENV infections can exert protective or pathological outcomes and provide insight into the pathogenesis of this important human pathogen