Introduction: With increased social isolation due to COVID-19, social media has been increasingly adopted for communication, education, and entertainment. We sought to understand the frequency and characteristics of social media usage among general surgery trainees.
Materials And Methods: General surgery trainees in 15 American training programs were invited to participate in an anonymous electronic survey.
Background: Major depressive disorder (MDD) is a debilitating condition with a high disease burden and medical comorbidities. There are currently few to no validated biomarkers to guide the diagnosis and treatment of MDD. In the present study, we evaluated the differences between MDD patients and healthy controls (HCs) in terms of cortical haemodynamic responses during a verbal fluency test (VFT) using functional near-infrared spectroscopy (fNIRS) and serum amino acid profiles, and ascertained if these parameters were correlated with clinical characteristics.
View Article and Find Full Text PDFPediatr Dermatol
September 2021
Many over-the-counter (OTC) products are marketed to treat molluscum contagiosum, a common childhood viral infection with an estimated point prevalence of 5%-11%. As optimal treatment has not been defined, a comprehensive internet search was performed to identify OTC products marketed for treating molluscum and to collect information on packaging, ingredients, application instructions, and dosing. Nine OTC products were identified and varied widely in cost, packaging size, and ingredients; six of the nine products contained Thuja occidentalis.
View Article and Find Full Text PDFBackground: Pulse pressure is a proposed means of tailoring antihypertensive therapy for treatment of acute-onset, severe hypertension in pregnancy.
Objective: This study aimed to determine whether pulse pressure predicts response to the various first-line antihypertensive medications.
Study Design: This is a retrospective cohort study from a single academic tertiary care center between 2015 and 2018.
The zoonotic coronavirus SARS-CoV-2 (severe acute respiratory syndrome coronavirus-2), which causes COVID-19 (coronavirus disease-2019), has resulted in a pandemic. This has led to an urgent need to understand the molecular determinants of SARS-CoV-2 infection, factors associated with COVID-19 heterogeneity and severity, and therapeutic options for these patients. In this review, we discuss the role of host factors in SARS-CoV-2 infection and describe variations in host factor expression as mechanisms underlying the symptoms and severity of COVID-19.
View Article and Find Full Text PDFObjective: Patients with major depressive disorder tend to exhibit poorer decision-making capacity than the general population, but neurobiological evidence is lacking. Functional near-infrared spectroscopy monitors changes in oxy-haemoglobin concentration in the cerebral cortex. It may provide an objective assessment of neurophysiological responses during decision-making processes.
View Article and Find Full Text PDFBackground: Advance psychiatric agreements could guide medical teams in providing care consistent with the incapacitated service user's wishes. However, these types of agreements are rarely completed in Asian settings. What challenges can a traditionally paternalistic healthcare system expect to encounter when attempting to implement psychiatric advance directives?
Methods: We answered this research question by exploring the cultural, administrative and logistical challenges that might impede the implementation of the system supporting the service.
Ventral hippocampal CA1 (vCA1) projections to the amygdala are necessary for contextual fear memory. Here we used in vivo Ca imaging in mice to assess the temporal dynamics by which ensembles of vCA1 neurons mediate encoding and retrieval of contextual fear memories. We found that a subset of vCA1 neurons were responsive to the aversive shock during context conditioning, their activity was necessary for memory encoding, and these shock-responsive neurons were enriched in the vCA1 projection to the amygdala.
View Article and Find Full Text PDFBackground: Hypertrophic osteoarthropathy (HOA) is a musculoskeletal pathology that often occurs as a paraneoplastic syndrome. 90% of HOA cases occur secondary to malignancy. 60 to 80% of which are lung cancers.
View Article and Find Full Text PDFPeople with mental illness may be unable to provide critical input about the care they wish to receive during a psychiatric crisis because of altered mental states. It is therefore imperative that clinicians seek to understand service users' wishes for care while they are well and able to provide meaningful input into the discussion. Achieving such an end may be done by discussing and completing a psychiatric advance directive.
View Article and Find Full Text PDFMany Gram-negative bacterial pathogens antagonize anti-bacterial immunity through translocated effector proteins that inhibit pro-inflammatory signaling. In addition, the intracellular pathogen Salmonella enterica serovar Typhimurium initiates an anti-inflammatory transcriptional response in macrophages through its effector protein SteE. However, the target(s) and molecular mechanism of SteE remain unknown.
View Article and Find Full Text PDFObjectives: (1) Investigate and explore whether different classes of associative stigma (the process by which a person experiences stigmatisation as a result of an association with another stigmatised person) could be identified using latent class analysis; (2) determine the sociodemographic and employment-related correlates of associative stigma and (3) examine the relationship between associative stigma and job satisfaction, among mental health professionals.
Design: Cross-sectional online survey.
Participants: Doctors, nurses and allied health staff, working in Singapore.
Rationale: Recently a frequent exacerbator phenotype has been described in bronchiectasis, but the underlying biological mechanisms are unknown. Antimicrobial peptides (AMPs) are important in host defence against microbes but can be proinflammatory in chronic lung disease.
Objectives: To determine pulmonary and systemic levels of AMP and their relationship with disease severity and future risk of exacerbations in bronchiectasis.
PZP (pregnancy zone protein) is a broad-spectrum immunosuppressive protein believed to suppress T-cell function during pregnancy to prevent fetal rejection. It has not previously been reported in the airway. To characterize PZP in the bronchiectasis airway, including its relationship with disease severity.
View Article and Find Full Text PDFFormononetin, an isoflavone, is extracted from various medicinal plants and herbs, including the red clover ( and Chinese medicinal plant Formononetin's antioxidant and neuroprotective effects underscore its therapeutic use against Alzheimer's disease. Formononetin has been under intense investigation for the past decade as strong evidence on promoting apoptosis and against proliferation suggests for its use as an anticancer agent against diverse cancers. These anticancer properties are observed in multiple cancer cell models, including breast, colorectal, and prostate cancer.
View Article and Find Full Text PDFSingapore Med J
February 2019
Introduction: Patients with schizophrenia have shorter life expectancy and one of the main causes of death is cardiovascular disease (CVD). Modifiable risk factors for CVD include diabetes mellitus (DM) and dyslipidaemia. This study aimed to establish: (a) the prevalence and correlates of DM and dyslipidaemia; (b) the proportion of those whose condition was well controlled; and (c) the incidence of undiagnosed DM and dyslipidaemia in a long-stay inpatient schizophrenia population.
View Article and Find Full Text PDFThe hippocampus is traditionally thought to transmit contextual information to limbic structures where it acquires valence. Using freely moving calcium imaging and optogenetics, we show that while the dorsal CA1 subregion of the hippocampus is enriched in place cells, ventral CA1 (vCA1) is enriched in anxiety cells that are activated by anxiogenic environments and required for avoidance behavior. Imaging cells defined by their projection target revealed that anxiety cells were enriched in the vCA1 population projecting to the lateral hypothalamic area (LHA) but not to the basal amygdala (BA).
View Article and Find Full Text PDFBackground: Similar to the general public, mental health professionals sometimes also have negative attitudes towards individuals with mental illness; which could ultimately affect the quality of care received by the patients. This study aims to explore attitudes to mental illness among mental health professionals in Singapore; make comparisons with the general population; and investigate the significant correlates.
Methods: A cross-sectional design was used.
Job satisfaction ranks highly as one of the main factors influencing turnover rates among nurses. Mental health nursing has been reported to be a particularly stressful specialty, yet little is known about the level of job satisfaction among psychiatric nurses in Singapore. Resilience is defined as a means of adapting to stress at the workplace, and could serve as a factor influencing job satisfaction.
View Article and Find Full Text PDF