Donor-derived dengue infections - A review of screening protocol and outcomes in an endemic country.

Background: Donor-derived dengue infections present significant challenges to organ transplantation, particularly in endemic regions like Singapore. Although primarily transmitted by Aedes mosquitoes, dengue can also be transmitted through organ transplantation, occasionally with fatal outcomes. This study aims to evaluate the outcomes and evolution of dengue screening protocols for potential deceased donors in Singapore from 2006 to 2022.

Subacute thyroiditis presenting as a painful suspicious thyroid nodule.

Summary: We report a case of subacute thyroiditis in a 40-year-old female who initially presented with painful thyroid nodules without clinical and biochemical evidence of hyperthyroidism. Thyroid ultrasound was done to evaluate the thyroid nodules and fine-needle aspiration (FNA) was performed in view of the suspicious features. As the FNA showed a follicular lesion of undetermined significance or atypia of undetermined significance (FLUS/AUS, Bethesda III), she was advised for surgical excision.

Dengue virus infection among renal transplant recipients in Singapore: a 15-year, single-centre retrospective review.

Introduction: Dengue is a mosquito-borne viral infection endemic in Singapore. Its impact on renal transplantation is limited to small case series. We aimed to characterise the clinical presentation and outcomes of dengue infection among renal transplant recipients in Singapore.

Subjective experiences of participating in an attachment-based early intervention parenting program.

This qualitative study evaluated an attachment-based group parenting program that utilises mentalisation-based approach. The Building Early Attachment and Resilience (BEAR) program was designed to promote parent-child attachment across the perinatal period and has pre- and post-natal arms. The post-natal component targets mothers and infants at risk for early disturbances of attachment to, and emotional interaction.

COVID-19 in Older Adults: A Series of 76 Patients Aged 85 Years and Older with COVID-19.

Background: Clinical presentation and risk factors of death in COVID-19 in oldest adults have not been well characterized.

Objectives: To describe clinical features and outcome of COVID-19 in patients older than 85 years and study risk factors for mortality.

Design: Prospective cohort.

Risk factors for pregnancy-associated venous thromboembolism in Singapore.

Objectives: Pregnancy-associated venous thromboembolism (VTE), including deep venous thrombosis (DVT) and pulmonary embolism (PE), is associated with increased risk of maternal mortality and morbidity. This study aimed to assess potential risk factors for pregnancy-associated VTE.

Methods: In this case-control study, women with pregnancy-associated VTE were identified via International Classification of Diseases codes and included if they had been objectively diagnosed with VTE during pregnancy or within six weeks postpartum, from 2004 to 2016, at KK Women's and Children's Hospital or Singapore General Hospital in Singapore.

Epidemiology of pregnancy-associated pulmonary embolism in South Asian multi-ethnic country: Mortality trends over the last four decades.

Objective: To determine the cumulative incidence, time of occurrence and risk factors of pregnancy-associated pulmonary embolism (PE) in Singapore, and to review the maternal mortality ratio of PE over the last four decades.

Study Design And Setting: In this retrospective epidemiology review, women with pregnancy-associated PE were identified via International Classification of Diseases codes and included if they had been objectively diagnosed on imaging with PE during pregnancy or within 6 weeks postpartum from 2004 to 2016 at KK Women's and Children's Hospital (KKH) and Singapore General Hospital (SGH) in Singapore. The medical records were reviewed and the time of occurrence of confirmed PE cases and risk factors for PE were noted.

Performance feedback promotes proactive but not reactive adaptation of conflict-control.

Cognitive control refers to the use of internal goals to guide how we process stimuli, and control can be applied proactively (in anticipation of a stimulus) or reactively (once that stimulus has been presented). The application of control can be guided by memory; for instance, people typically learn to adjust their level of attentional selectivity to changing task statistics, such as different frequencies of hard and easy trials in the Stroop task. This type of control-learning is highly adaptive, but its boundary conditions are currently not well understood.

Immunotherapy Targeting HPV16/18 Generates Potent Immune Responses in HPV-Associated Head and Neck Cancer.

Purpose: Clinical responses with programmed death (PD-1) receptor-directed antibodies occur in about 20% of patients with advanced head and neck squamous cell cancer (HNSCCa). Viral neoantigens, such as the E6/E7 proteins of HPV16/18, are attractive targets for therapeutic immunization and offer an immune activation strategy that may be complementary to PD-1 inhibition.

Patients And Methods: We report phase Ib/II safety, tolerability, and immunogenicity results of immunotherapy with MEDI0457 (DNA immunotherapy targeting HPV16/18 E6/E7 with IL12 encoding plasmids) delivered by electroporation with CELLECTRA constant current device.

Lifelong learning and productive aging among the baby-boomers in Singapore.

Coined in 1982, the term productive aging is commonly associated with active participation in work, although it has since expanded beyond employment to include other dimensions of work, such as volunteering, caregiving and other activities that "produce(s) good/service for society, whether paid or unpaid" (Caro, Bass and Chen, 1993, p. 6). In this paper focusing on examining lifelong learning as one of the other activities in what comprises productive aging, we seek to explore the connections of lifelong learning to the notions of productive aging from the perspective of baby-boomers in Singapore.

Targeting autophagic cancer stem-cells to reverse chemoresistance in human triple negative breast cancer.

There is growing evidence for the role of cancer stem-cells in drug resistance, but with few in situ studies on human tumor samples to decipher the mechanisms by which they resist anticancer agents.Triple negative breast cancer (TNBC) is the most severe sub-type of breast cancer, occurring in younger women and associated with poor prognosis even when treated at a localized stage.We investigated here the relationship between complete pathological response after chemotherapy and breast cancer stem-cell characteristics in pre-treatment biopsies of 78 women with triple negative breast carcinoma (TNBC).

Stem cells increase in numbers in perinecrotic areas in human renal cancer.

Purpose: Developing strategies to overcome resistance to sunitinib is a major challenge in human renal cell carcinoma (RCC). We hypothesized that sunitinib-induced tumor necrosis-associated hypoxia could interact with renal cancer stem cells in patients with metastatic RCC.

Experimental Design: We studied tissue samples from 7 patients with primary metastatic RCC, before and after sunitinib treatment, and from six xenograft models derived from human RCC.

The development of a silica nanoparticle-based label-free DNA biosensor.

A silica nanoparticle-based DNA biosensor capable of detecting Bacillus anthracis bacteria through the use of unlabelled ss-oligonucleotides has been developed. The biosensor makes use of the optical changes that accompany a nanoparticle-immobilized cationic conjugated polymer (polythiophene) interacting with single-stranded vs. hybridized oligonucleotides, where a fluorescence signal appears only when hybridized DNA is present (i.

Chemical polymerization of aniline on a poly(styrene sulfonic acid) membrane: Controlling the polymerization site using different oxidants.

Poly(styrene sulfonic acid) membranes (Neosepta CMX, Tokuyama Corp.) have been modified by in situ polymerization of aniline. (NH4)2S2O8, FeCl3, H2O2, and KIO3 were used as oxidizing agents, and two different modification methods (single-step versus two-step) were studied.

Characterization and transport properties of Nafion/polyaniline composite membranes.

Nafion membranes were modified by chemical polymerization of aniline using ammonium peroxodisulfate as the oxidant. The Nafion-polyaniline composite membranes were extensively characterized using scanning electron microscopy (SEM), atomic force microscopy (AFM), infrared (FTIR-ATR) and X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and ion-exchange capacity measurements. The transport properties were also evaluated by conductivity and electrodialysis measurements.