Publications by authors named "Chua S"

Introduction: Pharmacogenomic testing in psychiatry is an emerging area with potential clinical application of guiding medication choice and dosing. Interest has been fanned by commercial pharmacogenomic providers who have commonly marketed combinatorial panels that are direct-to-consumer. However, this has not been adopted widely due to a combination of barriers that include a varying evidence base, clinician and patient familiarity and acceptance, uncertainty about cost-effectiveness, and regulatory requirements.

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Epigastric pain and vomiting are common presentations associated with various causes of acute abdomen. Acute abdomen encompasses a range of different pathologies, with epigastric pain narrowing the differential diagnosis to conditions such as pancreatitis, bowel obstruction, acute cholecystitis, gastritis, acute coronary syndrome (ACS), and peptic ulcer disease, such as gastric ulcers and duodenal ulcers with/without perforation. This is a case of a male patient in his 80s who came to the emergency department with symptoms of generalized abdominal pain, vomiting, and constipation.

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Background: Atrial fibrillation (AF) is a common cardiac arrhythmia associated with significant morbidity and mortality. Rapid electrical stimulation (RES) of atrial fibroblasts plays a crucial role in AF pathogenesis, but the underlying molecular mechanisms remain unclear. This study investigates the regulatory axis involving MALAT1, miR-499a-5p, and SOX6 in human cardiac fibroblasts from adult atria (HCF-aa) under RES conditions.

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Article Synopsis
  • Laser frequency noise is problematic in low-frequency measurements, but can be mitigated using differential measurement schemes with heterodyne optical phase-locked loops.
  • The study demonstrates simultaneous optical phase-locked loops with notable specifications, achieving a 300 MHz offset range and an impressive 250 dB open-loop gain at 0.1 Hz.
  • A four-laser differential measurement setup is detailed, effectively suppressing relative free-running noise to enhance measurement precision below 0.1 / at 0.1 Hz.
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To investigate co-infection of bacterial isolates associated with respiratory syncytial virus (RSV) in children aged less than two years who were admitted to hospital with confirmed lower respiratory tract infection (LRTI) in Kelantan, Malaysia. The demographic data, clinical history, case management, haematological as well as infectious parameters (white blood cell differential and count, plus C-reactive protein, CRP) of the patients were systematically recorded. Less than one-third of cases were RSV-positive (21.

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Article Synopsis
  • Frailty is a gradual decline in health that affects older adults, prompting Singapore to seek community-based intervention programs to support its aging population.
  • The "Steady Lah" program, launched in 2022 at an Active Ageing Centre, was led by trained laypersons and included 12 sessions focusing on strength, balance exercises, and nutrition for 23 participants with an average age of 73.8 years.
  • Effective collaboration between healthcare institutions and community stakeholders is essential to create and improve intervention models that address the needs of frail older adults.
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This study evaluated patient-reported outcomes (PROs) of Medicine Access Programmes (MAPs) for Australian metastatic breast cancer patients on ribociclib. Limited patient awareness of MAP enrolment was identified, emphasising the need for improved education and consent processes. Most patients expressed gratitude for accessing non-funded medications and perceived enhanced medication adherence as a key benefit.

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Background: Nursing is regulated by a set of professional standards. Whilst many forms of ethics apply to nursing, the biomedical ethical framework is common, involving autonomy, beneficence, non-maleficence and justice. In healthcare, nurses often encounter ethical dilemmas that require them to navigate conflicting ethical principles.

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Background: Chronotropic incompetence (CI) severely limits exercise tolerance due to impaired heart rate responses. This study investigated whether pacemaker with closed-loop stimulation (DDD-CLS) pacing, which provides rate acceleration in response to exertion, could enhance lung function and cardiopulmonary capacity compared pacemaker without CLS pacing in patients with CI.

Methods: This randomized crossover trial included 32 patients with CI who were compared to each CLS and DDD pacing over 2 months.

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Consistent with past research that appearance plays an important role in gaining social and economic capital in many Asian countries, Monocello et al. report that young urban South Korean men who did not graduate from high-prestige universities may find the pursuit of attractiveness and the ideal body more important than those who graduated from high-prestige universities. It is possible that at least for some Asian men, disordered eating behaviors in response to appearance pressures are simply means to an end, and when success in important life domains is achieved, both appearance pressures and disordered eating behaviors may decrease.

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Background: Beyond knee pain itself, the fear of movement, also known as kinesiophobia, recently has been proposed as a potential factor contributing to disability and functional limitation in patients with knee osteoarthritis (OA). Nevertheless, the available evidence on the association of kinesiophobia with patient-reported outcome measures (PROMs) in knee OA remains limited.

Questions/purposes: Among patients with nonoperatively treated knee OA, we asked: (1) Is kinesiophobia associated with decreased quality of life (QoL), functional outcomes, and physical activity? (2) What are the patient disease and psychosocial demographic factors associated with kinesiophobia?

Methods: This was a multicenter, cross-sectional study of 406 general orthopaedic patients from two urban, referral-based tertiary hospitals in Singapore under a single healthcare group who received nonoperative treatment for knee OA.

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Background: Occult inguinal hernias are inguinal hernias that are not felt on physical exam but can often be seen on imaging. Their diagnosis can be challenging, leading to unnecessary surgeon referrals, undue patient stress, and even unneeded surgery. The aim of this project was to develop recommendations for the diagnosis of occult inguinal hernias using a modified Delphi technique.

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Introduction: Starting June 30, 2022, Google implemented its revised Inappropriate Content Advertising Policy, targeting discriminatory skin-lightening ads that suggest superiority of certain skin shades. This study evaluates the ad content changes from 2 weeks before to 2 weeks after the policy's enforcement.

Methods: Text ads from Google searches in eight countries (Bahamas, Germany, India, Malaysia, Mexico, South Africa, United Arab Emirates, and United States) were collected in 2022, totaling 1,974 prepolicy and 3,262 post-policy ads, and analyzed in 2023.

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Objective: To evaluate the surgical outcomes and predictors of failure of Single Incision Mini Sling (Ophira) in women with urodynamic stress incontinence.

Materials And Methods: Records of 115 women underwent anti-incontinence procedure using Ophira Mini Sling from June 2019 to September 2020 reviewed. Subjective evaluation was assessed using validated IIQ-7, UDI-6, POPDI-6 and PISQ-12 questionnaires.

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Introduction: Host-microbe interactions are important to human health and ecosystems globally, so elucidating the complex host-microbe interactions and associated protein expressions drives the need to develop sensitive and accurate biochemical techniques. Current proteomics techniques reveal information from the point of view of either the host or microbe, but do not provide data on the corresponding partner. Moreover, it remains challenging to simultaneously study host-microbe proteomes that reflect the direct competition between host and microbe.

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Current medical countermeasures (MCMs) for nerve agent poisoning have limited efficacy, and can cause serious adverse effects, prompting the requirement for new broad-spectrum therapeutics. Human plasma-derived butyrylcholinseterase (huBChE) is a promising novel bioscavenger MCM which has shown potential in animal studies, however, is economically prohibitive to manufacture at scale. This study addresses current challenges for the economical production of a bioactive and long-acting recombinant huBChE (rBChE) in mammalian cells by being the first to directly compare novel rBChE design strategies.

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Conventional heterodyne readout schemes are now under reconsideration due to the realization of techniques to evade its inherent 3 dB signal-to-noise penalty. The application of high-frequency, quadrature-entangled, two-mode squeezed states can further improve the readout sensitivity of audio-band signals. In this Letter, we experimentally demonstrate quantum-enhanced heterodyne readout of two spatially distinct interferometers with direct optical signal combination, circumventing the 3 dB heterodyne signal-to-noise penalty.

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Interactions between tumoral cells and tumor-associated bacteria within the tumor microenvironment play a significant role in tumor survival and progression, potentially impacting cancer treatment outcomes. In lung cancer patients, the Gram-negative pathogen Pseudomonas aeruginosa raises questions about its role in tumor survival. Here, a microfluidic-based 3D-human lung tumor spheroid-P.

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