Displaying publications 3081 - 3100 of 8501 in total

Abstract:
Sort:
  1. Tan S, Teh LJ, Mohd Mokhtaruddin S, Henry Basil J
    Int J Qual Health Care, 2025 Feb 18;37(1).
    PMID: 39895336 DOI: 10.1093/intqhc/mzaf012
    BACKGROUND: Medication administration in busy emergency departments (EDs) presents significant challenges due to the high-pressure environment and complexity of processes. Medication administration errors (MAEs) are a critical concern as they can severely impact patient safety and increase healthcare costs. Understanding the prevalence and underlying factors contributing to intravenous MAEs is essential for enhancing patient care and improving hospital services. This study aims to explore and measure the frequency of intravenous MAEs in EDs and identify factors contributing to these errors during their preparation and administration.

    METHODS: This prospective study utilized the direct observation technique where the preparation and administration of 222 intravenous medications were observed in the EDs of two hospitals in Malaysia. Information on medication preparation, administration, and other procedures was recorded. Error rates were calculated, and multivariable logistic regression was conducted to identify factors contributing to intravenous MAEs.

    RESULTS: MAEs were detected in 83.3% (185/222) of the observed medications affecting 86.7% (124/143) patients. Among these, a total of 240 MAEs were identified, with the most common being wrong rate of administration (55.8%), wrong preparation technique (20.8%), and omission error (11.7%). Alimentary tract and metabolism medications accounted for the highest proportion of MAEs (52.0%), followed by anti-infective medications (21.7%) and nervous system medications (15.4%). Excluding wrong time errors reduced the error rate to 80.2% (178/222). Nonverbal orders and inadequate or absence of labelling were significantly associated with MAEs, while factors such as the complexity of preparations, working shift, experience, and high-alert medications showed no significant associations.

    CONCLUSION: The study highlighted a high prevalence of intravenous MAEs in EDs. Nonverbal orders and inadequacy in labelling of medications were significant contributing factors to MAEs in the ED. Implementing an admixture labelling policy, comprehensive training programmes, strict enforcement of existing guidelines and protocols through regular audits, establishing nonpunitive error reporting system, and technological solutions where financially feasible are crucial for mitigating these errors to promote patient safety.

  2. Liao Z, Wen S, Ho LH, Tan TC
    Cutan Ocul Toxicol, 2025 Mar;44(1):82-94.
    PMID: 39985374 DOI: 10.1080/15569527.2025.2467620
    PURPOSE: This study examined a plant extract (PE) foundation's safety, antioxidant and protective properties. To offer a scientific foundation for the viability of creating 'skincare makeup' and improve the comprehension of cosmetic compositions' efficacy evaluations.

    METHODS: Cellular assays tested six different concentrations (up to 5%) of the PE for cell viability levels and reactive oxygen species (ROS) levels of human immortalised epidermal cells (HaCaTs). The identified non-cytotoxic concentration (0.5% PE) was then tested by gene assays. A commercial foundation containing 0.5% PE (PEF0.5) was tested for safety, skin protective effectiveness, and user satisfaction.

    RESULTS: Compared to the control groups, 0.5% PE had a significant inhibitory effect on the expression level of MMP-1 but promoted the expression of COL1A1, COL3A1, ELN, and AQP3. PEF0.5 significantly (p  0.05) differences were detected in the foundation's effectiveness and usability.

    CONCLUSION: Applying PEF0.5 for 28 days may improve the skin barrier function, as indicated by skin TEWL, hydration, wrinkle, elasticity, and sebum content, without any adverse effects.

  3. Mohd Tahir NS, Sharif Ishak SIZ, Tan ST
    Brain Behav, 2025 Feb;15(2):e70336.
    PMID: 39972968 DOI: 10.1002/brb3.70336
    INTRODUCTION: Literature has consistently reported that fussy eaters usually have restricted food choices, particularly on fruits and vegetables. Insufficient intake of fruits and vegetables among fussy-eating children can result in a lack of essential nutrients needed to support growth and development.

    OBJECTIVE: This study aims to elucidate the relationships between food fussiness, fresh fruit and vegetable consumption, and anthropometric indices of children residing in Klang Valley, Malaysia.

    METHODS: A cross-sectional study was conducted to recruit 179 pairs of consenting caregiver-child. Caregivers were required to report the surveyed child's sex, date of birth, and ethnicity. The six-item food fussiness subscale from the Child Eating Behavior Questionnaire (CEBQ) was used to assess food fussiness in children. In addition, caregivers were asked to report whether their child had consumed fresh fruits and vegetables over the past month and to list all those they consistently refused to consume. For anthropometric measurements, children's body weight was measured with a digital bathroom scale, and height was measured using a portable stadiometer. Height-for-age z-scores (HAZ) and BMI-for-age z-scores (BAZ) were determined using the WHO Anthro software version 3.2.2 (for children below five) or the WHO AnthroPlus software version 1.0.4 (for children above five). The relationships between the studied variables were analyzed using IBM SPSS statistics version 27.0.

    RESULTS: This study revealed that one in two children (54.2%) were fussy eaters, 9.5% did not consume fresh fruits, and 32.4% did not consume fresh vegetables over the past month. The findings from path analyses indicated that food fussiness was negatively correlated with fresh fruit and vegetable consumption. However, there were no significant direct and indirect relationships between food fussiness and anthropometric indices as indicated by HAZ and BAZ of children.

    CONCLUSION: The findings of this study demonstrated that food fussiness was negatively correlated with fresh fruit and vegetable consumption. Interventions can be carried out by encouraging children to consume fruits and vegetables they typically reject, such as bean vegetables, pear, papaya, and tuberous vegetables, to prevent nutrient deficiency.

  4. Lyu X, Hassan HM, Zan Y, Tan J
    Sci Rep, 2025 Feb 19;15(1):6007.
    PMID: 39972100 DOI: 10.1038/s41598-025-89380-8
    Water scarcity in China poses a significant challenge for sustainable greenhouse tomato production, necessitating strategies that optimize water use without compromising yield. While previous studies have explored irrigation and fertilization separately, comprehensive research on their combined effects using soluble organic fertilizers in arid regions is lacking. This study evaluates the interactive effects of different irrigation levels and fertilizer application patterns on the growth, physiological characteristics, water use efficiency (WUE), nutrient uptake, nitrogen use efficiency (NUE), and yield of greenhouse tomatoes. A pot experiment was conducted with three irrigation levels: I1 (90-100% field capacity), I2 (72-80% field capacity), and I3 (54-60% field capacity), and four fertilizer treatments: C1 (combined soluble organic and chemical fertilizer), C2 (soluble chemical fertilizer only), C3 (sheep manure and chemical fertilizer), and C4 (soluble organic fertilizer only). Results showed that increased irrigation significantly enhanced plant height, stem diameter, leaf area, leaf SPAD value, dry matter accumulation, nitrogen uptake, and fruit yield. Among all treatments, I1C1 achieved the highest fruit yield under sufficient irrigation, whereas the I2C1 treatment maintained a relatively high yield while notably improving root-to-shoot ratio, WUE, and nitrogen uptake, indicating an optimal balance for water-limited conditions. These findings demonstrate that integrating appropriate irrigation levels with combined fertilizer application can effectively mitigate water scarcity impacts, optimizing water savings and resource use efficiency while sustaining greenhouse tomato production in arid regions.
  5. Woo FB, Tan HL, Maria Dass RD, Sivandan S
    Respirol Case Rep, 2025 Feb;13(2):e70128.
    PMID: 39975980 DOI: 10.1002/rcr2.70128
    Acute myeloid leukaemia is known to present non-specifically and more commonly with B symptoms. We report an interesting presentation of acute myeloid leukaemia as a lung mass which initially raised clinical suspicion of primary lung cancer. A gentleman in his 50s who is an active smoker presented with chronic cough, lethargy, and giddiness for 2 months. Physical examination revealed pallor, cervical lymphadenopathy, and bronchial breathing over the right middle zone on auscultation. CT thorax showed a spiculated solid mass with a crazy-paving pattern, suggestive of lung cancer. However, blood workup showed pancytopenia with a full blood picture showing 60% blast cells. Subsequent bone marrow examination confirmed the diagnosis of AML. The patient received 2-weekly venetoclax-based chemotherapy. Serial follow-up CT showed resolution of lung changes and the patient remained in remission.
  6. Kwong A, Tan DS, Ryu JM, ACROSS Consortium
    Asia Pac J Clin Oncol, 2025 Apr;21(2):211-220.
    PMID: 38776249 DOI: 10.1111/ajco.14074
    AIM: This study assesses current practices and challenges in genetic testing and counseling (GT and C) for breast cancer gene (BRCA)1/2 mutations in Asia, considering the increased risk of ovarian cancer (OC) and breast cancer (BC) in women carrying these mutations.

    METHODS: Insights were gathered through a questionnaire from breast surgeons, gynecologists, oncologists, and genetic clinicians in 10 Asian countries: Thailand, Hong Kong, South Korea, India, Vietnam, Malaysia, the Philippines, Taiwan, Singapore, and Indonesia. The questionnaire covered their knowledge, attitudes, and practices in GT and C for BRCA1/2 mutations, along with information on perceived gaps and unmet needs in the region.

    RESULTS: A total of 61 specialists participated in the survey. GT and C for BRCA1/2 mutations were less frequently offered in Asia compared to Western countries. Among the guidelines used, the National Comprehensive Cancer Network (NCCN) guidelines alone or in combination with other guidelines (American Society of Clinical Oncology [ASCO], National Institute for Health and Clinical Excellence [NICE], and European Society for Medical Oncology [ESMO]) were preferred for both BC and OC. Limited access to genetic counselors posed a significant challenge, resulting in delayed or no GT. Pretest genetic counseling was provided by the respondents themselves. Germline testing was preferred for BC, whereas both germline and somatic testing were preferred for OC, with the most preferred option being a multipanel germline test.

    CONCLUSION: Disparities exist in GT and C practices between Asian and Western countries. To address this, steps, such as patient and doctor education, increased accessibility and affordability of GT and C services, and improved infrastructure for identifying gene mutations, should be taken.

  7. Lee FCH, Sitam FT, Tan LP
    J Virol Methods, 2025 Feb;332:115074.
    PMID: 39580121 DOI: 10.1016/j.jviromet.2024.115074
    DNA samples selected for long read sequencing (LRS) are routinely required to be 'pure' with high DNA concentration. Hence the usefulness of samples with substandard DNA quality for LRS is unknown. We aim to perform de-novo assembly of Adenovirus sequenced from non-human primate (NHP) faeces using the Oxford Nanopore technologies (ONT), an LRS platform. Guided by initial conventional PCR screening, we performed ONT sequencing on 34 Adenovirus positive DNA samples, without prior selection based on faeces freshness level or DNA quality. Non-parametric correlation analysis showed that ONT sequencing outputs is not significantly associated (p > 0.05) with DNA concentrations, faeces freshness levels and the OD ratios of A260/A280 and A260/A230. This indicated that conventional DNA quality parameters may not be the most critical factors in determining the suitability of samples for ONT sequencing. A total of 61.76 % (21/34) of the positive-by-PCR-screening samples yielded Adenovirus reads while 38.24 % (13/34) did not in the PCR-free ONT workflow, although rarefaction analysis showed that sequencing saturation was achieved by all samples. Among the 21 samples with adenovirus reads, ten resulted in at least one Adenovirus contig by the Flye assembler while nine did not and two samples had only a single Adenovirus read. Identity similarity above 90 % in conventional PCR screening may help in selecting ONT positive samples.
  8. Ding CH, Navarathinam SD, Neoh HM, Tan TL
    J Infect Dev Ctries, 2024 Dec 31;18(12.1):S353-S357.
    PMID: 39863954 DOI: 10.3855/jidc.20096
    INTRODUCTION: Since the dawn of the new millennium, Candida species have been increasingly implicated as a cause of both healthcare-associated as well as opportunistic yeast infections, due to the widespread use of indwelling medical devices, total parenteral nutrition, systemic corticosteroids, cytotoxic chemotherapy, and broad-spectrum antibiotics. Candida tropicalis is a pathogenic Candida species associated with considerable morbidity, mortality, and drug resistance issues on a global scale.

    METHODOLOGY: We report a case of a 43-year-old man who was admitted to our hospital for further management of severe coronavirus disease 2019 (COVID-19) pneumonia. During his stay in the ward, he received systemic corticosteroids for a total duration of 32 days. A broad-spectrum antibiotic (piperacillin-tazobactam) was also given due to copious amounts of tracheostomy secretions.

    RESULTS: The patient's fever recurred following an afebrile interval of 11 days, and C. tropicalis was cultured from his blood. The yeast was highly resistant to fluconazole and voriconazole but remained susceptible to echinocandins. Unfortunately, the patient was unable to receive any echinocandin and eventually succumbed to candidemia.

    CONCLUSIONS: Multilocus sequence typing was used to characterize C. tropicalis as a novel diploid sequence type (i.e., 1515) that has not been previously reported.

  9. Zhou J, Johnson VC, Shi J, Tan ML, Zhang F
    PLoS One, 2025;20(1):e0316255.
    PMID: 39854555 DOI: 10.1371/journal.pone.0316255
    Influenced by urban expansion, population growth, and various socio-economic activities, land use in the Yangtze River Delta (YRD) area has undergone prominent changes. Modifications in land use have resulted in adjustments to ecological structures, leading to subsequent fluctuations in carbon storage. This study focuses on YRD region and analyzes the characteristics of land use changes in the area using land use data from 2000 to 2020, with a 10-year interval. Utilizing InVEST Model's Carbon Storage module in combination with PLUS model (patch-generating land use simulation), we simulated and projected future land use patterns and carbon storage across YRD region under five scenarios including natural development (ND), urban development (UD), ecological protection (EP), cropland protection (CP), and balanced development (BD). Upon comparing carbon storage levels predicted for 2030 under the five scenarios with those in 2020, carbon stocks decrease in the initial four scenarios and then increase in the fifth scenario. In the initial four declining scenarios, CP scenario had the least reduction in carbon storage, followed by EP scenario. The implementation of policies aimed at safeguarding cropland and preserving ecological integrity can efficaciously curtail the expansion of developed land into woodland and cropland, enhance the structure of land use, and mitigate the loss of carbon storage.
  10. Yazid NA, Tan KY, Khor SM, Lee HV
    Int J Biol Macromol, 2025 Feb;291:138876.
    PMID: 39694355 DOI: 10.1016/j.ijbiomac.2024.138876
    This study aimed to develop a sustainable and bio-based nano-additive (sodium caseinate/cellulose nanofibers (SC/CNF) complex) to modulate liquid-based oil-in-water (O/W) colloid interfaces, which function as a fat control agent to slow lipid digestion. Edible protein (SC) was grafted onto CNF through facile electrostatic attraction, which reduces solvent and chemical usage for greener process. The physicochemical properties of SC/CNF showed that adding SC increased the interfacial bonding between CNF particles, resulting in higher interfacial pressure by forming dense and compact layers of SC/CNF. This characteristic improves the mechanical strength and colloidal stability of SC/CNF during water-oil stabilization. Further preparation of O/W Pickering emulsions stabilized by SC/CNF complexes was conducted using different parameters (such as SC concentration, dosage of SC/CNF, and O/W ratio) to investigate profile of free fatty acid (FFA) released during lipid digestion via simulated in vitro gastrointestinal tract (GIT) model. The results showed that the optimized emulsion stabilized by the SC/CNF complex rendered a lower value of free fatty acids (FFA) after undergoing in vitro simulated digestion. The lowest FFA release (31.18 %) was achieved under the following conditions: 1 % w/v (SC concentration), 1 % w/w (dosage of SC/CNF), and 20/80 (O/W) ratio. Low FFA release within the digestive system indicated that the nano-emulsions effectively regulated lipid digestion. The changes in physicochemical characteristics in terms of colloidal stability (particle size, microstructure, and surface charge) of the stabilized emulsions corresponding to the FFA released were studied during each digestion phase (including mouth, stomach, and small intestine). This study revealed that the SC/CNF complex is a promising nano-biomaterial that can function as a bio-functional food additive, particle stabilizer, and fat digestion controller. The unique characteristics of SC/CNF complexes in stabilizing oil-water emulsions present a potential interfacial mechanism for modulating lipid bioavailability. The innovation approach allows for the demand for green-label products, promote development of healthier food options, and the pursuit of sustainable food solutions.
  11. Muhammad-Zaidulkhair MR, Tan RS, Kamarul IK
    Malays Orthop J, 2024 Nov;18(3):84-87.
    PMID: 39691571 DOI: 10.5704/MOJ.2411.013
    Fractures of the distal radius are the most common type of forearm fractures seen in children. The most serious outcome of physeal injuries is growth arrest, which can result in deformity and even significant differences in limb length. Therefore, we'd like to share our experience with treating a patient whose left radius stopped growing after she had a physeal injury in an accident. Case presentation: we encountered a 10-year-old girl, who was involved in a road traffic accident. She sustained closed fracture distal end left radius (Salter Harris 2). She sought medical assistance late, so osteoclasis, open reduction, and a k-wire on her left radius to fix the fracture, however it was complicated with growth arrest of left radius after the bone united. It was observed that her left radius was around 4cm shorter than her right. She had an osteotomy performed on her left radius and a LRS implanted. After six months post-surgery, there was no visible shortening of her left upper limb, and the radius had grown by around 4cm. There was no neurovascular impairment after left radius lengthening. After a year had passed after her operation, the patient said she had no complaints about her left upper limb. Despite the prevalence of the ilizarov method, the monorail external fixator, also known as LRS, is an option for bone lengthening of the radius. The LRS was utilised in our situation, and the results demonstrated its usefulness.
  12. Lai NM, Fiander M, Cracknell J, Tan K, Romantsik O
    Cochrane Database Syst Rev, 2025 Jan 28;1(1):CD014212.
    PMID: 39873291 DOI: 10.1002/14651858.CD014212
    This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the benefits and harms of dexmedetomidine compared with opioids, non-opioids and placebo in providing sedation and analgesia for procedural pain in newborn infants.
  13. Annsley DS, Chin KL, Tan KK, AbuBakar S, Zainal N
    Trop Biomed, 2024 Dec 01;41(4):481-490.
    PMID: 39876506 DOI: 10.47665/tb.41.4.009
    Dengue, caused by the dengue virus (DENV), poses a significant global health challenge. Effective vaccines and treatments for dengue are lacking due to gaps in understanding its pathogenesis and mechanisms in severe cases. This study investigates the role of immunoglobulin E (IgE) in dengue, focusing on its potential association with virus neutralization and antibody-dependent enhancement (ADE) in DENV replication. Serum samples were obtained from dengue-positive (dengue-IgG positive), SLE (dengue-IgG negative), and control (dengue-IgG and SLE-negative) individuals. SLE sera were included as a control for their high total IgE levels. Total IgE and dengue-specific IgE levels were measured using ELISA. Neutralization assays in Vero and KU812 cells were conducted to assess virus neutralization and ADE, respectively. Dengue-positive and SLE sera showed higher total IgE levels than control sera, although there was no significance seen. Dengue-positive sera showed the presence of dengue-specific IgE, whereas SLE and control sera exhibited negligible levels. Neutralization assay in dengue-positive sera revealed no correlation between IgE levels and virus inhibition. SLE sera, however, demonstrated an inverse correlation between total IgE levels and DENV neutralization, suggesting a potential involvement of total IgE in DENV replication in the context of SLE. Seventy-eight percent of SLE sera, 65% of denguepositive and 54% of control sera exhibited enhanced virus replication in KU812 cells with serum compared to virus alone, indicating the highest occurrence of ADE in SLE, followed by dengue-positive and control sera. DENV expression in KU812 cells was notably higher in SLE sera, indicating increased ADE risk. However, no association was found between IgE levels and virus expression in KU812 cells across all groups. The inverse correlation between total IgE levels and DENV neutralization in SLE sera suggests that IgE may facilitate virus replication. Further comprehensive exploration is needed to fully understand the role of IgE in dengue pathogenesis.
  14. Ng CT, Fong LY, Tan JJ, Abdullah MNH
    Cytokine, 2025 Mar 29;190:156922.
    PMID: 40158467 DOI: 10.1016/j.cyto.2025.156922
    Crosstalk and synergy between interferon-γ (IFN-Ƴ) and tumor necrosis factor-α (TNF-α) in endothelial cells have previously been documented, however, there is an absence of articles reviewing the synergistic effect of IFN-Ƴ and TNF-α in regulating the endothelial barrier function. This review discusses the regulatory mechanisms and recent evidence of the synergism of IFN-γ and TNF-α in causing destabilization of endothelial junctions in various clinical studies and preclinical models. Articles were retrieved from electronic databases such as Web of Science, PubMed, Google Scholar, and Scopus. The search terms used were "interferon", "interferon-gamma", "tumor necrosis factor-α", "vascular inflammation", "endothelial barrier", "endothelial permeability" and "synergism". We selected articles published between 2004 and 2024. Through the Rho-associated protein kinase (ROCK) and p38 mitogen-activated protein (MAP) kinase pathways, our results showed that IFN-γ controls the remodeling of actin and the stability of junctions. In comparison to IFN-γ, the signaling cascades triggered by TNF-α involve a variety of pathways such as nuclear factor-kappa B (NF-κB), small GTPases, tyrosine kinases, integrin receptors, and barrier-stabilizing molecules such as Ras-related proteins 1A (Rap1A) and Rac family small GTPase 1 (Rac1). In the context of IFN-γ and TNF-α synergism, combined IFN-γ and TNF-α alter adherens and tight junctions. It is deduced that c-Jun N-terminal kinase (JNK), signal transducers and activators of transcription (STAT1), and caspase signaling pathways regulate endothelial barrier disruption caused by IFN-γ and TNF-α. Collectively, the mechanism underlying the synergistic action of IFN-γ and TNF-α is still lacking. Future work is needed to explore the crosstalk pathways of IFN-γ and TNF-α involved in the regulation of endothelial barrier function such as modulation of extracellular matrix (ECM) structure, involvement of tyrosine kinases and roles of small GTPases.
  15. Tan PH, Ja'apar AN, Munusamy MM, Sallehuddin A
    Cureus, 2025 Mar;17(3):e80216.
    PMID: 40190904 DOI: 10.7759/cureus.80216
    Several surgical approaches have been proposed to correct the transposition of the great arteries (TGA) with ventricular septal defect (VSD) and left ventricular outflow tract obstruction (LVOTO). Unlike the traditional procedures such as the Rastelli and Réparation à l'Etage Ventriculaire (REV) procedure, which often necessitate reoperation due to right or left ventricular outflow tract obstruction, the Bex-Nikaidoh procedure involves the translocation of both the aortic and pulmonary roots to achieve anatomically correct outflow alignment for both ventricles. Although technically demanding, this technique effectively addresses the anatomical challenges such as inlet or restrictive VSD and hypoplastic right ventricle. Recent studies indicate encouraging mid-term results, including high survival rate, preserved left ventricular function, and lower incidence of reoperation. We present a case report of a child with TGA, VSD, and pulmonary stenosis who successfully underwent the Bex-Nikaidoh procedure, detailing our operative technique, perioperative assessment, and management, thereby contributing to the evolving landscape of surgical repair for complex TGA with VSD and LVOTO.
  16. Lyu X, Hassan HM, Zan Y, Tan J
    PLoS One, 2025;20(8):e0328793.
    PMID: 40828752 DOI: 10.1371/journal.pone.0328793
    Irrigation and fertilization strategies have been extensively employed to enhance the growth and yield of greenhouse tomatoes. However, the impacts of divergent fertilizer application patterns on soil microbial communities under water-saving irrigation regimes in China's arid and semi-arid zones remain underexplored. In this study, a pot experiment was conducted in the greenhouse of Yuncheng University, Shanxi Province, incorporating three irrigation levels (I1, 90%-100% field capacity [Fs]; I2, 72%-80% Fs; I3, 54%-60% Fs) and four fertilization modes (C1, soluble organic-inorganic fertilizer combination; C2, sole soluble inorganic fertilizer; C3, sheep manure-inorganic fertilizer combination; C4, sole soluble organic fertilizer) to evaluate the effects of water-fertilizer management on the growth and physiological attributes of greenhouse tomatoes. Results demonstrated that irrigation regimes and fertilization patterns significantly modulated bacterial richness and diversity, as quantified by amplicon sequence variants (ASVs). The C1 treatment (soluble organic-inorganic fertilizer integration) exhibited the highest bacterial alpha diversity (Shannon index: 7.29). In beta diversity analysis, it induced the most distinct community structures, particularly under I3 (PCo1 = 17.96%) where it strongly diverged from C3. Microbial communities under I2 (PCo1 = 11.13%) showed greater homogeneity while preserving treatment-specific patterns, suggesting slight deficit irrigation balances stability and functional differentiation. The C1 treatment also elicited the most pronounced enhancement in soil enzyme activities, particularly phosphatase (PHO, 9.51 mg g ⁻ ¹) and catalase (CAT, 2.29 mL g ⁻ ¹). Conversely, reduced irrigation (I3) corresponded with decreased bacterial diversity, whereas slight deficit irrigation (I2) sustained higher microbial abundance compared to severe deficit irrigation. Additionally, I2 elevated soil pH (8.04), available phosphorus (AP: 10.39 mg kg ⁻ ¹), and soil nitrate nitrogen (SNO₃ ⁻ -N: 5.02 mg kg ⁻ ¹). These findings provide critical insights into optimizing water-fertilizer strategies to enhance microbial activity and nutrient cycling in greenhouse tomato production systems. Phylogenetic analysis identified Actinobacteriota (26.06%), Proteobacteria (25.89%), Chloroflexi (12.42%), and Acidobacteriota (11.03%) as the dominant bacterial phyla. Significant positive correlations were observed between invertase, urease, catalase, and alkaline phosphatase activities and microbial diversity indices (ASVs, ACE, Chao1, Shannon index). This study advances our understanding of how rhizosphere bacterial communities adapted to fertilization regimes under water stress, offering novel perspectives for precision management of greenhouse agroecosystems in water-constrained regions.
  17. Asmuje NF, Mat S, Myint PK, Tan MP
    Curr Hypertens Rep, 2022 Oct;24(10):375-383.
    PMID: 35731334 DOI: 10.1007/s11906-022-01200-w
    PURPOSE OF REVIEW: To conduct a scoping review of articles which have evaluated BPV and cognitive function. Articles with keywords, titles or abstracts containing the terms 'cognitive' OR 'cognition' OR 'dementia' AND 'blood pressure variability' were identified from CINAHL, Medline, PMC and Web of Science.

    RECENT FINDINGS: Methods of acquisition and analysis of BPV and cognitive measurements and their relationship were extracted from selected articles. Of 656 studies identified, 53 articles were selected. Twenty-five evaluated long-term (LTBPV), nine mid-term (MTBPV), 12 short-term (STBPV) and nine very short-term BPV (VSTBPV) with conflicting findings on the relationship between BPV and cognition. Variations existed in devices, period and procedure for acquisition. The studies also utilized a wide range of methods of BPV calculation. Thirteen cognitive assessment tools were used to measure global cognition or domain functions which were influenced by the population of interest. The interpretation of available studies was hence limited by heterogeneity. There is an urgent need for standardization of BPV assessments to streamline research on BPV and cognition. Future studies should also establish whether BPV could be a potential modifiable risk factor for cognitive decline, as well as a marker for treatment response.

  18. Tan WL, Subha ST, Mohtarrudin N, Cheah YK
    Mol Biol Rep, 2023 Jun;50(6):5395-5405.
    PMID: 37074612 DOI: 10.1007/s11033-023-08421-5
    The self-renew ability of cancer stem cells (CSCs) continues to challenge our determination for accomplishing cancer therapy breakthrough. Ineffectiveness of current cancer therapies to eradicate CSCs has contributed to chemoresistance and tumor recurrence. Yet, the discoveries of highly effective therapies have not been thoroughly developed. Further insights into cancer metabolomics and gene-regulated mechanisms of mitochondria in CSCs can expedite the development of novel anticancer drugs. In cancer cells, the metabolism is reprogrammed from oxidative phosphorylation (OXPHOS) to glycolysis. This alteration allows the cancer cell to receive continuous energy supplies and avoid apoptosis. The pyruvate obtained from glycolysis produces acetyl-coenzyme A (Acetyl-CoA) via oxidative decarboxylation and enters the tricarboxylic acid cycle for adenosine triphosphate generation. Mitochondrial calcium ion (Ca2+) uptake is responsible for mitochondrial physiology regulation, and reduced uptake of Ca2+  inhibits apoptosis and enhances cell survival in cancer. There have been many discoveries of mitochondria-associated microRNAs (miRNAs) stimulating the metabolic alterations in mitochondria via gene regulation which promote cancer cell survival. These miRNAs are also found in CSCs where they regulate genes and activate different mechanisms to destroy the mitochondria and enhance CSCs survival. By targeting the miRNAs that induced mitochondrial destruction, the mitochondrial functions can be restored; thus, it triggers CSCs apoptosis and completely eliminates the CSCs. In general, this review article aims to address the associations between miRNAs with mitochondrial activities in cancer cells and cancer stem cells that support cancer cell survival and self-renewal.
  19. Tan YL, Chen JE, Yiew TH, Habibullah MS
    Environ Sci Pollut Res Int, 2022 Sep;29(42):63260-63276.
    PMID: 35459997 DOI: 10.1007/s11356-022-20054-y
    South and Southeast Asia is by far the most populous region in Asia, with the greatest number of threatened species. Changes in habitat are a major contributor to biodiversity loss and are more common as a result of land-use changes. As a result, the goal of this study is to use negative binomial regression models to investigate habitat change as one of the important drivers of biodiversity loss in South and Southeast Asian countries from 2013 to 2018. According to the negative binomial estimates, the findings for the habitat change measures are quantitatively similar for the impacts of agricultural land and arable land on biodiversity threats. Agricultural and arable land both have a positive impact on biodiversity loss. We found that, contrary to our expectations, the forest area appears to have an unexpected direct influence on the number of threatened species. A higher number of threatened species is associated with rising per capita income, human population and a low level of corruption control. Finally, the empirical findings are consistent across taxonomic groups, habitat change measures and Poisson-based specifications. Some policy implications that could mitigate biodiversity loss include educating and promoting good governance among the population and increase the conservation effort to sustain green area and national forest parks in each country.
  20. Tan MHP, Ong SC, Vasan Thakumar A, Mustafa N
    Qual Life Res, 2023 Jul;32(7):1925-1941.
    PMID: 36781810 DOI: 10.1007/s11136-023-03360-x
    PURPOSE: There is a knowledge gap of health utility values for Type 2 Diabetes Mellitus (T2DM) complications in Malaysia. This study aimed to estimate EQ-5D-5L utility values and evaluate health-related quality of life (HRQoL) for Malaysian T2DM associated with complications and clinical characteristics.

    METHODS: A cross-sectional study was conducted on T2DM patients at a tertiary hospital outpatient using the Malay and English version of the EQ-5D-5L questionnaire. Health utility values were derived using the Malaysian EQ-5D-5L value set. Ordinary least squares (OLS) multivariable regression model was used to estimate the health utility decrements associated with T2DM-related complications and clinical characteristics.

    RESULTS: A total of 513 T2DM patients were recruited. Overall, pain was the most affected of all five EQ-5D-5L dimensions. Patients with foot ulcer, amputation, severe heart failure and frequent hypoglycemia reported more problems collectively in all EQ-5D-5L dimensions. Older age, lower education level, longer duration of T2DM, urine protein creatine index (UPCI) > 0.02 g/mmol, and injection therapy were significantly associated with lower EQ-5D-5L utility values (p 

Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links