Publications by authors named "Siti N A Zakaria"

Unlabelled: Extraluminal foreign bodies are rare. Fish bone is the most common foreign body ingested by adults, while coin is the most common foreign body ingested among children. Sharp pricking pain is a sign of sharp foreign body (FB) ingestion.

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CRISPR-based diagnostics use the CRISPR-Cas system -cleavage activity to identify specific target sequences. When activated, this activity cleaves surrounding reporter molecules, producing a detectable signal. This technique has great specificity, sensitivity, and rapid detection, making it an important molecular diagnostic tool for medical and infectious disease applications.

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Ginger ( Roscoe) can scavenge free radicals, which cause oxidative damage and inflamm-ageing. This study aimed to evaluate the antioxidant and anti-inflammatory effects of soil ginger's sub-critical water extracts (SWE) on different ages of Sprague Dawley (SD) rats. The antioxidant properties and yield of SWE of soil- and soilless-grown ginger (soil ginger and soilless ginger will be used throughout the passage) were compared and evaluated.

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Aging is a complex process characterized by progressive loss of functional abilities due to the accumulation of molecular damages. Metabolomics could offer novel insights into the predictors and mechanisms of aging. This cross-sectional study is aimed at identifying age-associated plasma metabolome in a Malay population.

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A molybdenum sulfide/zirconium oxide/Nafion (MoS/ZrO/Naf) based electrochemiluminescence (ECL) aptasensor for the selective and ultrasensitive detection of ApoA1 is proposed, with Ru(bpy) as the luminophore. The chitosan (CS) modification on the nanocomposite layer allowed glutaraldehyde (GLUT) cross-linking, resulting in the immobilization of ApoA1 aptamers. Scanning electron microscopy, tunneling electron microscopy, and energy dispersive X-ray spectroscopy were used to characterize the nanocomposite, while electrochemiluminescence (ECL), cyclic voltammetry, and electrochemical impedance spectroscopy were used to analyze the aptasensor assembly.

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Objectives: This study aims to compare the differential gene expression resulting from tocotrienol-rich fraction and α-tocopherol supplementation in healthy older adults.

Methods: A total of 71 eligible subjects aged 50 to 55 years from Gombak and Kuala Lumpur, Malaysia, were divided into three groups and supplemented with placebo (n=23), α-tocopherol (n=24) or tocotrienol-rich fraction (n=24). Blood samples were collected at baseline and at 3 and 6 months of supplementation for microarray analysis.

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Article Synopsis
  • Greigite (FeS) and other iron sulfides may serve as low-cost, earth-abundant electrocatalysts for the hydrogen evolution reaction (HER), but their surface chemistry is not well understood.* -
  • When a greigite-modified electrode was studied under HER conditions, it was found that iron-sulfur bonds were replaced by iron-oxygen units, resulting in a mixture of 60% greigite and 40% iron hydroxide (goethite) with a core-shell structure.* -
  • A significant increase in pH at the electrode surface (up to pH 12) was observed due to hydroxide generation; however, CO saturation inhibited this process, highlighting the need
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