985 resultados para Oral contraceptives.
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A pressão arterial (PA) é definida fisiologicamente de acordo com diversos fatores próprios e ambientais. Fatores fisiológicos próprios como etnia, idade, sexo e genéti-ca familiar podem influenciar inteiramente nos valores da PA de um indivíduo. Os problemas multifatoriais que podem elevar os níveis da pressão arterial sistémica - HAS de um indivíduo são: a obesidade, a diabetes, o tabagismo, o etilismo, o seden-tarismo, o estresse, o uso excessivo de sal na dieta, e o uso de anticoncepcionais orais. Este estudo teve por objetivo investigar quais os principais fatores que se tor-naram determinantes para um índice elevado de hipertensos no município de Tan-que D’arca nos últimos 10 anos. Este estudo é transversal, com uma amostra de 376 indivíduos entre 20 e 90 anos ou mais, acompanhados nas unidades básicas de sa-úde do município. E após a analise dos dados colhidos através de questionários foi possível determinar que os fatores socioculturais estão diretamente relacionados com o elevado número de casos de hipertensos presentes no município. Palavra-chave: Hipertensão, Uso excessivo de sal, Situação Sociocultural, Prevenção.
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IMPORTANCE Obesity is a risk factor for deep vein thrombosis of the leg and pulmonary embolism. To date, however, whether obesity is associated with adult cerebral venous thrombosis (CVT) has not been assessed. OBJECTIVE To assess whether obesity is a risk factor for CVT. DESIGN, SETTING, AND PARTICIPANTS A case-control study was performed in consecutive adult patients with CVT admitted from July 1, 2006 (Amsterdam), and October 1, 2009 (Berne), through December 31, 2014, to the Academic Medical Center in Amsterdam, the Netherlands, or Inselspital University Hospital in Berne, Switzerland. The control group was composed of individuals from the control population of the Multiple Environmental and Genetic Assessment of Risk Factors for Venous Thrombosis study, which was a large Dutch case-control study performed from March 1, 1999, to September 31, 2004, and in which risk factors for deep vein thrombosis and pulmonary embolism were assessed. Data analysis was performed from January 2 to July 12, 2015. MAIN OUTCOMES AND MEASURES Obesity was determined by body mass index (BMI). A BMI of 30 or greater was considered to indicate obesity, and a BMI of 25 to 29.99 was considered to indicate overweight. A multiple imputation procedure was used for missing data. We adjusted for sex, age, history of cancer, ethnicity, smoking status, and oral contraceptive use. Individuals with normal weight (BMI <25) were the reference category. RESULTS The study included 186 cases and 6134 controls. Cases were younger (median age, 40 vs 48 years), more often female (133 [71.5%] vs 3220 [52.5%]), more often used oral contraceptives (97 [72.9%] vs 758 [23.5%] of women), and more frequently had a history of cancer (17 [9.1%] vs 235 [3.8%]) compared with controls. Obesity (BMI ≥30) was associated with an increased risk of CVT (adjusted odds ratio [OR], 2.63; 95% CI, 1.53-4.54). Stratification by sex revealed a strong association between CVT and obesity in women (adjusted OR, 3.50; 95% CI, 2.00-6.14) but not in men (adjusted OR, 1.16; 95% CI, 0.25-5.30). Further stratification revealed that, in women who used oral contraceptives, overweight and obesity were associated with an increased risk of CVT in a dose-dependent manner (BMI 25.0-29.9: adjusted OR, 11.87; 95% CI, 5.94-23.74; BMI ≥30: adjusted OR, 29.26; 95% CI, 13.47-63.60). No association was found in women who did not use oral contraceptives. CONCLUSIONS AND RELEVANCE Obesity is a strong risk factor for CVT in women who use oral contraceptives.
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Mode of access: Internet.
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Incessant ovulation is thought to be one of the primary causes of epithelial ovarian cancer. However, the effects of ovulation at different ages and of the various exposures or events that suppress ovulation have not been established. We used data from an Australian case-control study of 791 ovarian cancer cases and 853 controls to examine the effect of ovulation on ovarian cancer risk. The total number of lifetime ovulations was calculated using information provided in a monthly contraceptive/reproductive calendar, as well as incorporating other information such as average menstrual cycle length. An increase of I year's worth of ovulation was associated with a 6% increase in risk of ovarian cancer (95% confidence interval [CI] = 4-8%). Ovulations in the 20-29-year age group were associated with the greatest risk, with a 20% increase in risk associated with each year of ovulation during this age period (95% Cl = 13-26%). When the effects of different exposures that suppress ovulation were compared, there was an indication that some factors may have a greater effect than others. These findings support the theory that incessant ovulation is a major contributor to the occurrence of ovarian cancer and suggest that ovulations during the 20s may be those most associated with disease risk. (C) 2003 Wiley-Liss, Inc.
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Latent class and genetic analyses were used to identify subgroups of migraine sufferers in a community sample of 6,265 Australian twins (55% female) aged 25-36 who had completed an interview based on International Headache Society UHS) criteria. Consistent with prevalence rates from other population-based studies, 703 (20%) female and 250 (9%) male twins satisfied the IHS criteria for migraine without aura (MO), and of these, 432 (13%) female and 166 (6%) male twins satisfied the criteria for migraine with aura (MA) as indicated by visual symptoms. Latent class analysis (LCA) of IHS symptoms identified three major symptomatic classes, representing 1) a mild form of recurrent nonmigrainous headache, 2) a moderately severe form of migraine, typically without visual aura symptoms (although 40% of individuals in this class were positive for aura), and 3) a severe form of migraine typically with visual aura symptoms (although 24% of individuals were negative for aura). Using the LCA classification, many more individuals were considered affected to some degree than when using IHS criteria (35% vs. 13%). Furthermore, genetic model fitting indicated a greater genetic contribution to migraine using the LCA classification (heritability, h(2) =0.40; 95% CI, 0.29-0.46) compared with the IHS classification (h(2)=0.36; 95% CI, 0.22-0.42). Exploratory latent class modeling, fitting up to 10 classes, did not identify classes corresponding to either the IHS MO or MA classification. Our data indicate the existence of a continuum of severity, with MA more severe but not etiologically distinct from MO. In searching for predisposing genes, we should therefore expect to find some genes that may underlie all major recurrent headache subtypes, with modifying genetic or environmental factors that may lead to differential expression of the liability for migraine. (C) 2004 Wiley-Liss, Inc.
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The natural history of the development of epithelial ovarian cancer remains obscure and no effective screening test exists. In several human malignancies progression from benign to invasive tumour occurs, but this sequence has not been established for epithelial ovarian cancer. We have reviewed epidemiological, histopathological and molecular studies of benign epithelial ovarian tumours to assess the evidence for and against such a progression in ovarian cancer. These data suggest that a diagnosis of a benign ovarian cyst or tumour is associated with an increased risk of ovarian cancer later in life. Current evidence also suggests that benign serous tumours can progress to low-grade serous cancer and that benign mucinous tumours can progress to mucinous cancer. The more common high-grade serous ovarian cancers are likely to arise de novo.
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The relevance of endocrine-disrupting compounds as potential contaminants of drinking water is reviewed, particularly in the reuse of wastewater. Growing populations and increasing intensification of land and water use for industry and agriculture have increased the need to reclaim wastewater for reuse, including to supplement the drinking water supply. The variety of anthropogenic chemicals that have been identified as potential endocrine disruptors in the environment and the problems arising from their use as human and livestock pharmaceuticals, as agricultural chemicals and in industry are discussed. The potentially adverse impact of these chemicals on human health and the ecology of the natural environment are reviewed. Data for the removal of estrogenic compounds from wastewater treatment are presented, together with the comparative potencies of estrogenic compounds. The relative exposure to estrogens of women on oral contraceptives, hormone replacement therapy, and through food consumption is estimated. A brief overview of some methods available or under development for the assessment of estrogenic activity in environmental samples is provided. The review concludes with a discussion of the directions for further investigation, which include human epidemiology, methodology development, and wastewater monitoring. (C) 2006 Wiley Periodicals, Inc.
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Selenium binding protein I (SELENBP1) was identified to be the most significantly down-regulated protein in ovarian cancer cells by a membrane proteome profiling analysis. SELENBP1 expression levels in 4 normal ovaries, 8 benign ovarian tumors, 12 borderline ovarian tumors and 141 invasive ovarian cancers were analyzed with immunohistochemical assay. SELENBP1 expression was reduced in 87% cases of invasive ovarian cancer (122/141) and was significantly reduced in borderline tumors and invasive cancers (p < 0.001). Cox multivariate analysis within the 141 invasive cancer tissues showed that SELENBP1 expression score was a potential prognostic indicator for unfavorable prognosis of ovarian cancer (hazard ratio [HR], 2.18; 95% CI = L22-190; p = 0.009). Selenium can disrupt the androgen pathway, which has been implicated in modulating SELENBP1 expression. We investigated the effects of selenium and androgen on normal human ovarian surrace epithelial (HOSE) cells and cancer cells. Interestingly, SELENBP1 mRNA and protein levels were reduced by androgen and elevated by selenium treatment in the normal HOSE cells, whereas reversed responses were observed in the ovarian cancer cell lines. These results suggest that changes of SELENBP1 expression in malignant ovarian cancer are an indicator of aberration of selenium/androgen pathways and may reveal prognostic information of ovarian cancer. (c) 2005 Wiley-Liss, Inc.
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Systemic Lupus Erythematosus (SLE) is a chronic inflammatory rheumatic disease which affects the connective tissue. Its etiology is as yet unknown, while its pathogenesis involves the immune system. Both genetic and environmental and hormonal factors play a key role in the impaired immune regulation. A correlation with estrogens is demonstrated by the fact that the greatest incidence is found in young women, when estrogen secretion is at its highest. The disease is also reported to worsen in women taking oral contraceptives. It is therefore believed that the components of oral contraceptives, estrogens (ethinyl estradiol) and progestins, can affect the immune profile. Of the various complications attributed to systemic lupus erythematosus, gastrointestinal disorders are less common but potentially by far the most serious. We report a case of ischemic necrosis with sigma perforation in a patient with SLE. Signs and symptoms of acute abdomen in patients with SLE are rare (0.2%), but serious. Most patients require an exploratory laparotomy, as the causes are often linked with vasculitis.
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A etiologia da alveolite é desconhecida. Considera-se não haver uma causa específica, mas sim uma associação de factores inerentes ao seu aparecimento. O diagnóstico é realizado, geralmente, entre o 2º e 5º dia após exodontia, sendo bastante claro. Manifesta-se por uma dor aguda e pulsátil, mal controlada com analgésicos, e de apresentação clínica uma inflamação da mucosa em torno do alvéolo, com parcial ou total perda do coágulo, apresentando-se este vazio ou com tecido necrótico e/ou restos alimentares. Pode ainda haver uma exposição óssea. Diversas são as taxas de incidência, variando consoante os factores de risco predisponentes da doença. São estes a idade, género, ciclo menstrual e toma de contraceptivos orais (nas mulheres), trauma cirúrgico e experiência do médico, a indicação da extração, bem como características do dente a ser extraído, ainda as técnicas e anestesia usadas, bem como remanescentes ósseos e/ou radiculares, uso de retalhos e suturas, patologias sistémicas, medicação e cuidados pós-operatórios do doente. Todos estes podem ter impacto no desenvolvimento desta condição, devendo o médico dentista eliminá-los e reduzi-los ao máximo. A prevenção aplica-se a medidas não farmacológicas, como redução de factores de risco, em combinação a terapia farmacológica, de modo a favorecer uma correta cicatrização. Recurso a soluções antissépticas, medicação tópica (intra-alveolar) e prescrição sistémica de antibióticos e anti-inflamatórios não esteroides são algumas dessas medidas. Ao nível do tratamento, vários métodos e materiais estão disponíveis no mercado. Por ser uma condição que o próprio organismo “combate”, o objectivo terapêutico passa basicamente pela redução dos sintomas debilitantes do paciente e controlo bacteriano. A opção é individual, uma vez que não existe nenhum tratamento com características ideais, sendo os resultados na literatura bastante discrepantes. Limpeza do alvéolo, medicação intra-alveolar (tópica) e/ou sistémica, bem como terapia com laser de baixa intensidade, são algumas opções. A administração antibiótica deve ser reservada para casos especiais, não devendo ser abordada como método de rotina. Analgésicos são uma opção, podendo ser aconselhada consoante o quadro clínico doloroso. Também o reforço para uma higiene oral rigorosa, com irrigação do alvéolo para evitar detritos e impactação alimentar (no caso de não existirem obtundantes intra-alveolares) devem ser preocupação do médico dentista. Deve haver um seguimento regular do paciente, especialmente se aplicados medicamentos tópicos, para avaliação e renovação (se necessário) do curativo até recuperação. O médico dentista deve saber identificar um caso de alveolite, encontrando-se informado e consciente das várias opções preventivas e terapêuticas. Estudos mais claros e objectivos são necessários na procura de critérios de diagnóstico genéricos da doença, bem como terapêuticas preventivas e de tratamentos com taxas de sucesso altas e suportadas por evidência científica. Para que, desta forma, seja elaborado um protocolo universal a seguir na prática clínica.
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Introdução e Objetivos: A trombose venosa profunda (TVP) e o tromboembolismo pulmonar são os componentes do tromboembolismo venoso (TEV) que, embora infrequente, é uma entidade emergente na pediatria. Apresentamos uma casuística cujo objetivo é a avaliação dos aspetos mais relevantes da TVP em idade pediátrica e da sua abordagem terapêutica. Metodologia: Revisão retrospetiva descritiva dos processos dos doentes internados na última década com o diagnóstico de TVP no Serviço de Pediatria da ULSAM. Resultados: Identificaram-se seis doentes, cinco deles do sexo feminino. A mediana de idades foi 17 anos. O edema do membro afetado esteve sempre presente e o segmento venoso mais atingido foi o ileofemoral (2/6). Houve concomitância de pelo menos dois fatores de risco adquiridos em três doentes, sendo o mais frequente o contracetivo oral combinado. Foi excluída trombofilia hereditária em cinco doentes mas ainda aguardamos o resultado do estudo de um doente. O tempo médio de tratamento foi de 9,8 meses. Discussão e Conclusão: A TVP na criança tem sido reconhecida como uma patologia rara, mas importante causa de morbilidade. A maior incidência de TVP foi documentada na adolescência com compromisso do membro inferior, tal como referido na literatura. Verificamos uma conjugação de fatores de risco que, provavelmente, se potenciaram entre si levando à ocorrência do TEV e colocamos a possibilidade do Pediatra se estar a deparar com uma nova realidade anteriormente excluída do atendimento pediátrico. O aumento na incidência desta patologia levanta a questão do acréscimo de risco trombótico nos adolescentes do sexo feminino devido à utilização de contracetivos orais combinados. Salientamos a importância de um consenso nacional no diagnóstico, tratamento e prevenção desta entidade em Pediatria.