Publications by authors named "Ngui R"

Soil-transmitted helminths (STHs) are known as one of the neglected parasitic diseases, leading to significant health issues and associated complications. This study aims to assess the current prevalence of STH infections and the associated risk factors among rural primary schoolchildren in Malaysia. A cross-sectional study was conducted among 638 schoolchildren (7-11 years old) from 10 rural primary schools in five regions of Malaysia.

View Article and Find Full Text PDF

Background: Bacterial image analysis plays a vital role in various fields, providing valuable information and insights for studying bacterial structural biology, diagnosing and treating infectious diseases caused by pathogenic bacteria, discovering and developing drugs that can combat bacterial infections, . As a result, it has prompted efforts to automate bacterial image analysis tasks. By automating analysis tasks and leveraging more advanced computational techniques, such as deep learning (DL) algorithms, bacterial image analysis can contribute to rapid, more accurate, efficient, reliable, and standardised analysis, leading to enhanced understanding, diagnosis, and control of bacterial-related phenomena.

View Article and Find Full Text PDF
Article Synopsis
  • * A study in Malaysia examined 134 cancer patients and 17 healthy controls to assess the prevalence of IPIs and how they affect gut microbiota composition, finding a 32.8% prevalence of IPIs among cancer patients.
  • * Results indicated significant differences in gut microbiota diversity between cancer patients and healthy controls, as well as distinct bacterial compositions between parasite-infected and non-infected cancer patients, suggesting that intestinal parasites may disrupt normal gut microbiota balance in this vulnerable group.
View Article and Find Full Text PDF
Article Synopsis
  • Malaria is a critical global health issue requiring fast and accurate diagnosis to control its spread, prompting the need for automated diagnostic tools that can quickly identify infected cells.
  • This study modifies the YOLOv4 deep learning model through layer pruning and backbone replacement, enhancing its performance for malaria diagnosis while reducing computation time and model size.
  • The modified YOLOv4-RC3_4 model shows significant improvement, achieving a 90.70% mean accuracy precision and outperforming the original model by over 9%, demonstrating its effectiveness in detecting infected cells.
View Article and Find Full Text PDF

Purpose: Vitamin A deficiency (VAD) remains a significant contributor to childhood morbidity and mortality in developing countries; therefore, the implementation of sustainable and cost-effective approaches to control VAD is of utmost pertinence. This study aims to investigate the efficacy of red palm olein (RPO)-enriched biscuit supplementation in improving vitamin A, haematological, iron, and inflammatory status among vitamin A-deficient schoolchildren.

Methods: We conducted a double-blinded, randomised controlled trial involving 651 rural primary schoolchildren (8-12 years) with VAD in Malaysia.

View Article and Find Full Text PDF

Background: Malaria parasites such as Plasmodium knowlesi, P. inui, and P. cynomolgi are spread from macaques to humans through the Leucosphyrus Group of Anopheles mosquitoes.

View Article and Find Full Text PDF

Timely and rapid diagnosis is crucial for faster and proper malaria treatment planning. Microscopic examination is the gold standard for malaria diagnosis, where hundreds of millions of blood films are examined annually. However, this method's effectiveness depends on the trained microscopist's skills.

View Article and Find Full Text PDF

Although Malaysia is considered free of human malaria, there has been a growing number of cases. This alarming trend highlighted the need for our understanding of this parasite and its associated vectors, especially considering the role of genetic diversity in the adaptation and evolution among vectors in endemic areas, which is currently a significant knowledge gap in their fundamental biology. Thus, this study aimed to investigate the genetic diversity of , , , and -the vectors for malaria in Malaysia.

View Article and Find Full Text PDF

Notwithstanding the global efforts made to control intestinal parasitic infections, soil-transmitted helminth (STH) infections are still one of the most prevalent infections globally, especially in developing countries. A double-blinded, randomized controlled trial was conducted on 343 primary schoolchildren (8-12 years old) with vitamin A deficiency (VAD) in rural areas of Malaysia to investigate the effects of red palm olein (RPO)-enriched biscuits on STH reinfection rates and infection intensities. The effects of the RPO-enriched biscuits (experimental group, n = 153) and palm olein (PO)-enriched biscuits (control group, n = 190), were assessed at 3- and 6-month after the administration of complete triple-dose albendazole (one dose of 400 mg for three consecutive days).

View Article and Find Full Text PDF
Article Synopsis
  • Indigenous populations, like certain Malaysian villages, show microbiomes that are diverse and less understood compared to those in industrialized societies, particularly regarding helminth (worm) infections.
  • Villages with higher helminth infection rates exhibited more unmapped genetic data and greater microbial diversity, with differences in microbiome composition related to specific localities and associated infection status.
  • Treatment with albendazole (a deworming drug) caused changes in both infected and uninfected individuals' microbiomes, highlighting the complex interactions between helminths and microbiota, and emphasizing the need for careful interpretation in deworming research.
View Article and Find Full Text PDF

The study assessed the distribution of Malaysian adults associated with detection in low-rise residential areas using a modified sticky ovitrap (MSO). The relationship between and climatological parameters were also determined. Fifty-two weeks of surveillance using 273 MSOs were conducted in four installation areas of eleven sampling sites.

View Article and Find Full Text PDF

Mouth rinses which function as breath fresheners, medicaments, and antiseptics can also deliver oral therapeutic agents. This study evaluated and compared the antifungal effects of synthetic and herbal mouth rinses on oral C. albicans and C.

View Article and Find Full Text PDF

Introduction: Non-communicable disease (NCD) risk is influenced by environmental factors that are highly variable worldwide, yet prior research has focused mainly on high-income countries where most people are exposed to relatively homogeneous and static environments. Understanding the scope and complexity of environmental influences on NCD risk around the globe requires more data from people living in diverse and changing environments. Our project will investigate the prevalence and environmental causes of NCDs among the indigenous peoples of Peninsular Malaysia, known collectively as the Orang Asli, who are currently undergoing varying degrees of lifestyle and sociocultural changes that are predicted to increase vulnerability to NCDs, particularly metabolic disorders and musculoskeletal degenerative diseases.

View Article and Find Full Text PDF

In Malaysia, soil-transmitted helminth (STH) infections still persist among indigenous communities. In the past, local studies have focused mostly on epidemiologic aspects of STH infections with a scarcity of information on the efficacy of deworming treatment. The present study consisted of 2 phases: a cross-sectional phase on current epidemiological status and risk factors of STH infections and a longitudinal study over 6 weeks on triple dose albendazole efficacy against STH infections.

View Article and Find Full Text PDF
Article Synopsis
  • This study investigates asymptomatic verocytotoxin-producing E. coli (VTEC) infections in indigenous individuals in Malaysia, highlighting the public health risk posed by human carriers.
  • Analyzed stool samples from 41 individuals, researchers identified 108 strains and confirmed 4 as VTEC, with varying antimicrobial resistance profiles, particularly high resistance to ampicillin.
  • Findings reveal a genetically diverse presence of VTEC among the indigenous population, emphasizing the need for monitoring these infections and addressing antimicrobial resistance.
View Article and Find Full Text PDF

Dengue is a major mosquito-borne disease in many tropical and sub-tropical countries worldwide, with entomological surveillance and control activities as the key management approaches. This study aimed to explore the spatial dispersal of the vector Aedes albopictus, captured by the modified sticky ovitrap (MSO) in residential areas with low-rise buildings in Selangor, Malaysia. Distribution maps were created and shown as temporally distinguished classes based on hotspot analysis by Getis-Ord; spatial autocorrelation assessed by semivariograms using the exponential Kernel function; and universal Kriging showing areas with estimated high and low vector densities.

View Article and Find Full Text PDF

Soil-transmitted helminth (STH) infections, mainly caused by Ascaris lumbricoides, Trichuris trichiura, and hookworms, are among the most common intestinal parasites that infect humans. The infections are widely distributed throughout tropical and subtropical countries, including Malaysia, particularly in underprivileged communities. Microscopic and culture techniques have been used as a gold standard for diagnostic techniques.

View Article and Find Full Text PDF

Childhood malnutrition is known as a public health concern globally. The present study aims to assess the anthropometry and blood biochemical status of rural primary schoolchildren in Malaysia. A total of 776 children (7-11 years old) from ten rural primary schools from five states were included in this study.

View Article and Find Full Text PDF
Article Synopsis
  • The Leucosphyrus Group of mosquitoes is a key vector for simian malaria in Malaysia, making accurate species identification crucial for controlling the disease's spread.
  • This study aimed to develop a molecular method using multiplex PCR to identify four specific mosquito species linked to simian malaria outbreaks.
  • The findings confirmed distinct genetic differences among the species, enhancing the ability to identify them accurately, which is essential for understanding their distribution and role in malaria transmission.
View Article and Find Full Text PDF

Dengue remains a major public threat and existing dengue control/surveillance programs lack sensitivity and proactivity. More efficient methods are needed. A cluster randomized controlled trial was conducted for 18 months to determine the efficacy of using a combination of gravid oviposition sticky (GOS) traps and dengue non-structural 1 (NS1) antigen for early surveillance of dengue among Aedes mosquito.

View Article and Find Full Text PDF

Background: Plasmodium knowlesi, a simian malaria parasite infection, increases as Plasmodium falciparum and Plasmodium vivax infections decrease in Johor, Malaysia. Therefore, this study aimed to identify the distribution of vectors involved in knowlesi malaria transmission in Johor. This finding is vital in estimating hotspot areas for targeted control strategies.

View Article and Find Full Text PDF

Introduction: The animal hookworm, Ancylostoma ceylanicum, is a dominant hookworm species of dogs and cats. However, it has increasingly been found infecting humans in Southeast Asia.

Purpose: We report an autochthonous case of A.

View Article and Find Full Text PDF

This study sought to determine the prevalence of pathogenic and non-pathogenic bacteria in the oral cavities of children with cancer. There were 68 paediatric patients with cancer who were included in this study. Oral swab samples from the dorsum of tongues and mouth floors of these patients were subjected to culture, staining, and molecular methods to detect the bacteria.

View Article and Find Full Text PDF