Circulating extracellular vesicles (EVs) such as cholera toxin B chain (CTB)- or annexin V (AV)-binding EVs were previously shown to be rich sources of biomarkers. Here we test if previously identified pre-eclampsia (PE) candidate biomarkers, TIMP-1 in CTB-EVs (CTB-TIMP) and PAI-1 in AV-EVs (AV-PAI) complement plasma PlGF in predicting PE in a low-risk obstetric population. Eight hundred and forty-three prospectively banked plasma samples collected at 28 + 0 to 32 + 0 gestation weeks in the Neonatal and Obstetrics Risk Assessment (NORA) cohort study were assayed by sandwich ELISAs for plasma PlGF, CTB-TIMP1 and AV-PAI1. Nineteen patients subsequently developed PE 7.3 (±2.9) weeks later at a mean gestational age of 36.1 ± 3.5 weeks. The biomarkers were assessed for their predictive accuracy for PE using stepwise multivariate logistic regression analysis with Firth correction and Areas under the curve (AUC). To achieve 100% sensitivity in predicting PE, the cut-off for plasma PlGF, CTB-TIMP1 & AV-PAI1 were set at <1235, ≤300 or >1300 and <10,550 pg/mL plasma, respectively. The corresponding AUCs, specificity and PPV at a 95% confidence interval were 0.92, 52.1% and 4.7%; 0.72, 44.5% and 4.0%; and 0.69, 21.5% and 2.9%, respectively. At 100% sensitivity, the three biomarkers had a combined AUC of 0.96, specificity of 78.6%, and PPV of 9.9%.This is the first large cohort validation of the utility of EV-associated analytes as disease biomarkers. Specifically, EV biomarkers enhanced the predictive robustness of an existing PE biomarker sufficiently to justify PE screening in a low-risk general obstetric population.

BackgroundFemale sexual dysfunction (FSD) is increasingly being identified as a problem around the world. Women can have problems in various parts of the sexual cycle - desire, arousal, lubrication, orgasm or they may experience pain related to sexual activity. The only study involving Singapore with regard to sexual dysfunction in women, the Asian Global Studies of Sexual Attitudes and Behaviours in 2002, reported that Singapore had one of the lowest age-standardised sexual dysfunction rates of 32% compared with other Asian countries. This pilot study aims to evaluate the prevalence of female sexual dysfunction and to investigate the independent significant risk factors among allied health workers in a tertiary hospital in Singapore.MethodsA cross-sectional study where an anonymous questionnaire which included 19 questions in the FSFI (Female Sexual Function Index) was distributed to all allied health workers in a tertiary hospital in Singapore aged between 18 to 70 years old.ResultsThree hundred thirty completed questionnaires were involved in analysis. 56.0% of women were found to have sexual dysfunction. A significant difference was found in the prevalence of FSD when comparing nurses to other allied health staff, where nurses had a decreased risk of developing FSD. Age was not found to be a significant risk factor in our study. Respondents below 40 years of age had significantly lower satisfaction scores than those above 40. Indians and Filipinos were found to have lower scores than the Chinese and Malay respondents in the lubrication (p = 0.02) and pain domains (p = 0.02).ConclusionA significant proportion our female allied health workers suffer from sexual dysfunction. In this study, we found that the overall prevalence was independent of age, race and marital status. Nurses had a lower risk of developing FSD. We will need further studies to assess the prevalence of female sexual dysfunction in the general population, to evaluate the independent significant risk factors for developing FSD, in addition to classical risk factors, as well as to assess the psychological impact of this condition and whether people would be willing to seek help for such problems.

While our study found an overall cutoff at 32 regardless of gestation age, it has limited diagnostic accuracy for LO-PE in our study. Multiple cutoffs focusing on either high sensitivity or high specificity enhance the performance of the sFlt-1/PlGF ratio as a diagnostic tool for PE and contribute to the identification of women at risk of PE in our Asian region.

Objective: A positive culture of academic medicine is important for improving healthcare, research and medical education. This study seeks to assess academic medicine culture, enablers and barriers with a multi-dimensional structured survey, in a newly formed academic department from the perspectives of faculty and staff. Methods: Thirteen dimensions relating to academic medicine culture were identified after focused group discussions. Each dimension contains four relevant questions with answers on a 5-point Likert scale. This web-based questionnaire survey was con-