432 results match your criteria: "UKM Medical Molecular Biology Institute[Affiliation]"

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.

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Background: Emerging evidence suggests that the creatinine-to-body weight (Cre/BW) ratio is a predictor for incident diabetes in the Asian population. This study examined the association between Cre/BW ratio and incident diabetes, as well as the relationship between Cre/BW ratio and skeletal muscle and body fat mass in a multiethnic Malaysian cohort.

Methods: A total of 13 047 eligible participants were selected from 119 560 The Malaysian Cohort participants.

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Immunoaffinity Depletion of High-Abundance Proteins from Serum/Plasma for Proteomic Analysis.

Methods Mol Biol

December 2024

UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.

Mass spectrometry-based proteomics is widely applied to human blood serum or plasma in the search of biomarkers for various diseases. However, the enormous complexity and dynamic range of protein concentrations in these samples render a significant analytical challenge, particularly for detecting low-abundance candidate biomarkers. As a result, strategies for enriching low-abundance proteins and improving their identification in serum or plasma proteomics are commonly used.

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Author Correction: π-HuB: the proteomic navigator of the human body.

Nature

January 2025

State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China.

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Background: Early detection of colorectal cancer (CRC) is crucial to enhance the disease treatment and prognosis of patients. Colonoscopy remains the gold standard for CRC detection; however, it requires trained personnel with expensive tools. Currently, serum metabolites have been discovered to be used to discriminate patients with polyps and CRC.

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π-HuB: the proteomic navigator of the human body.

Nature

December 2024

State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China.

The human body contains trillions of cells, classified into specific cell types, with diverse morphologies and functions. In addition, cells of the same type can assume different states within an individual's body during their lifetime. Understanding the complexities of the proteome in the context of a human organism and its many potential states is a necessary requirement to understanding human biology, but these complexities can neither be predicted from the genome, nor have they been systematically measurable with available technologies.

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Background: Rice is subjected to various environmental stresses, resulting in significant production losses. Abiotic stresses, particularly drought and salinity, are the leading causes of plant damage worldwide. The High-affinity Potassium Transporter (HKT) gene family plays an important role in enhancing crop stress tolerance by regulating physiological and enzymatic functions.

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Article Synopsis
  • Antimicrobial resistance (AMR) poses serious health risks, particularly in bacteria carrying Extended-Spectrum β-Lactamases (ESBL), which can lead to ineffective treatments and increased spread of resistance.
  • A study analyzing 137 blood cultures from patients in a Malaysian hospital found that while many bacteria had genotypes linked to ESBL, over half remained susceptible to certain antibiotics, indicating complexities in treating infections.
  • Results showed that even though the prediction for ESBL phenotypes was reasonably accurate, there were no significant differences in clinical outcomes, such as severity of infection or mortality, between patients with ESBL-positive and those without.
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Background: Diffuse large B-cell lymphoma (DLBCL) is globally recognized as the most prevalent and aggressive subtype of non-Hodgkin lymphoma. While conventional treatments are effective initially, the disease can become resistant or relapse over time. This study aimed to examine the differentially expressed genes at the transcriptome level and molecular pathways in DLBCL patients.

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Rs16851030, a single-nucleotide variant located in the 3'-untranslated region of the gene, has been proposed as a potential marker of caffeine sensitivity in apnea of prematurity. Besides, it is associated with aspirin-induced asthma and the development of acute chest syndrome. However, its functional significance is still unconfirmed.

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Molecular surveillance of methicillin-resistant Staphylococcus aureus (MRSA) isolated from Hospital Canselor Tuanku Muhriz (HCTM), a Malaysian teaching hospital revealed clonal replacement events of SCCmec type III-SCCmercury to SCCmec type IV strains before the year 2017; however, the reasons behind this phenomenon are still unclear. This study aimed to identify factors associated with the clonal replacement using genomic sequencing and phenotypic investigations (antibiogram profiling, growth rate and desiccation tolerance determination, survival in vancomycin sub-minimum inhibitory concentration (MIC) determination) of representative HCTM MRSA strains isolated in four-year intervals from 2005 - 2017 (n = 16). HCTM Antimicrobial Stewardship (AMS) and Infection Prevention and Control (IPC) policies were also reviewed.

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Antimicrobial resistance (AMR) poses a significant threat to global public health, with the potential to cause millions of deaths annually by 2050. Effective surveillance of AMR pathogens is crucial for monitoring and predicting their behaviour in response to antibiotics. However, many public health professionals lack the necessary bioinformatics skills and resources to analyse pathogen genomes effectively.

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Introduction: FAS has been implicated in the development of various cancers, but its involvement in lung cancer has not been systematically characterized. In this study, we performed data mining in online tumor databases to investigate the expression, methylation, alterations, protein interactions, co-expression and prognostic significance of FAS in lung cancer.

Method: The expression, prognostic significance and molecular interactions of FAS in lung cancer was mined and analyzed using GENT2, GEPIA2, UALCAN, cBioPortal, STRING, GeneMANIA, UCSC Xena, Enrichr, and OSluca databases.

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Article Synopsis
  • Lung cancer, specifically non-small cell lung cancer (NSCLC), is a major global health issue with rising cases and limited treatment options largely due to its connection with tobacco and the complexity of its subtypes.
  • The role of epigenetics, particularly DNA methylation and its regulation by the enzyme DNA methyltransferases (DNMTs), is gaining attention in understanding and managing lung cancer.
  • Abnormal patterns in DNMTs can disrupt gene regulation in cancer cells, and current research is exploring these patterns as potential diagnostic and therapeutic targets to improve outcomes for NSCLC patients.
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The complex interplay of epigenetic factors is essential in regulating the hallmarks of cancer and orchestrating intricate molecular interactions during tumor progression. Circular RNAs (circRNAs), known for their covalently closed loop structures, are non-coding RNA molecules exceptionally resistant to enzymatic degradation, which enhances their stability and regulatory functions in cancer. Similarly, microRNAs (miRNAs) are endogenous non-coding RNAs with linear structures that regulate cellular biological processes akin to circRNAs.

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Evidence on serum biomarkers as a non-invasive tool to detect colorectal adenoma (CRA) in the general population is quite promising. However, the sensitivity and specificity of these serum biomarkers in detecting disease are still questionable. This study aimed to systematically review the evidence on the diagnostic performance of serum biomarkers associated with CRA.

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Background: The management of extensive longitudinal data in cohort studies presents significant challenges, particularly in middle-income countries like Malaysia where technological resources may be limited. These challenges include ensuring data integrity, security, and scalability of storage solutions over extended periods.

Objective: This article outlines innovative methods developed and implemented by The Malaysian Cohort project to effectively manage and maintain large-scale databases from project inception through the follow-up phase, ensuring robust data privacy and security.

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Background: Tumour necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is an apoptosis inducer that exhibits an ideal therapeutic safety profile with less adverse effects than conventional chemotherapy. However, the occurrence of TRAIL resistance has been reported in various cancers including colorectal cancer (CRC). Substantial efforts have been channelled towards managing TRAIL resistance including identifying molecular targets.

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This study aimed to determine the expression pattern of autoantibody proteins from the serum of grade IV glioblastoma patients. We performed high throughput antibody profiling via the Sengenics i-Ome Protein Array to determine the differentially expressed autoantibodies. The results portrayed that anti-COL4A3BP and anti-HSP90AA1 were among the upregulated autoantibodies in glioblastoma sera.

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Engineered T cells for Colorectal Cancer.

Immunotherapy

October 2024

UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia.

Colorectal cancer (CRC) is a major contributor to global cancer incidence and mortality. Conventional treatments have limitations; hence, innovative approaches are imperative. Recent advancements in cancer research have led to the development of personalized targeted therapies and immunotherapies.

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Whole genome sequencing reveals the mutational landscape from disease diagnosis to relapse in patients with childhood acute myeloid leukaemia.

Malays J Pathol

August 2024

UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, 56000 Cheras, Kuala Lumpur, Malaysia.

Article Synopsis
  • Leukaemia is the most common cancer in children, with a significant gap in knowledge regarding genomic changes in childhood acute myeloid leukaemia (AML) compared to adults, and relapsed AML remains a major cause of cancer deaths in young patients.
  • The study conducted whole genome sequencing on samples from three patients at different stages (diagnosis, remission, and relapse) to understand the mutations involved in relapsed AML and validated findings with additional patient samples.
  • The researchers identified 312 somatic mutations, with 35 new mutations appearing at relapse, including six potential driver mutations, notably recurrent mutations in the ETV6 gene, which lost its tumor-suppressive function, providing insights into the molecular mechanisms driving relapsed AML.
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Unlabelled: In this study of postmenopausal women in Malaysia, total adiposity was inversely associated with total BMD, while regional associations varied. No differences were detected across Malay, Chinese, and Indian ethnicities. Low BMD contributes substantially to morbidity and mortality, and increasing adiposity levels globally may be contributing to this.

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Article Synopsis
  • Hepcidin plays a key role in regulating iron levels during inflammatory conditions like inflammatory bowel disease (IBD), prompting a systematic review and meta-analysis to explore its association with IBD.
  • The analysis included 10 studies with 1,184 participants, revealing that patients with IBD had significantly higher serum hepcidin levels compared to healthy controls, while prohepcidin levels were slightly lower but not significantly different.
  • Significant variability was found among the studies, especially for hepcidin levels, indicating that while hepcidin is elevated in IBD, the clinical importance of this increase is still unclear and requires more research.
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Background: The techniques for detecting single nucleotide polymorphisms (SNP) require lengthy and complex experimental procedures and expensive instruments that may only be available in some laboratories. Thus, a deoxyribonucleic acid (DNA)-based lateral flow assay (LFA) was developed as a point-of-care test (POCT) diagnostic tool for genotyping. In this study, single nucleotide variation (E101K) in the low-density lipoprotein receptor gene leading to familial hypercholesterolemia (FH) was chosen as a model.

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Leukemia is one of the most common cancers in children; and its genetic diversity in the landscape of acute lymphoblastic leukemia (ALL) is important for diagnosis, risk assessment, and therapeutic approaches. Relapsed ALL remains the leading cause of cancer deaths among children. Almost 20% of children who are treated for ALL and achieve complete remission experience disease recurrence.

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