Publications by authors named "Lee C Yan"

Motivation: While the release of AlphaFold (AF) represented a breakthrough for the prediction of protein complex structures, its sensitivity, especially when using full length protein sequences, still remains limited. Modeling success rates might increase if AF predictions were guided by likely interacting protein fragments. This approach requires available sets of highly confident protein-protein interface types.

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Grapsoid crabs (Decapoda: Grapsoidea) inhabiting along the land-sea transition provided various amounts and quality of vascular plant carbon (e.g., fresh mangrove leaf, leaf litter, and mangrove-derived organic carbon) and perform differing levels of herbivory.

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Article Synopsis
  • - Structural resolution of protein interactions is crucial for studying mechanisms and disease variants, but many interactions remain unresolved due to limited tools, particularly those involving short linear motifs in disordered protein regions.
  • - AlphaFold-Multimer shows high sensitivity in predicting domain-motif structures using small protein fragments, but its effectiveness drops with longer fragments or full-length proteins.
  • - This research introduced a protein fragmentation strategy that successfully predicted new and potentially disease-related protein interfaces in neurodevelopmental disorders, leading to experimental validation of several interactions and highlighting both the promise and limitations of the AlphaFold-Multimer approach.
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Aims: Heart failure (HF) is a growing health problem, yet there are limited data on patients with HF in Malaysia. The Malaysian Heart Failure (MY-HF) Registry aims to gain insights into the epidemiology, aetiology, management, and outcome of Malaysian patients with HF and identify areas for improvement within the national HF services.

Methods And Results: The MY-HF Registry is a 3-year prospective, observational study comprising 2717 Malaysian patients admitted for acute HF.

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Introduction: Diabetes mellitus (DM) is characterized by chronic hyperglycemia and diabetic complications. Exacerbated cortical neuronal degeneration was observed in Alzheimer's disease (AD) patients with DM. In fact, DM is now considered a risk factor of AD, as DM-induced activation of stress responses in the central nervous system (CNS) such as oxidative stress and neuroinflammation may lead to various neurodegenerative disorders.

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Background: Although the burden of premature myocardial infarction (MI) is high in Malaysia, direct evidence on the determinants of MI in this multi-ethnic population remains sparse.

Objective: The Malaysian Acute Vascular Events Risk (MAVERIK) study is a retrospective case-control study established to investigate the genomic, lipid-related, and other determinants of acute MI in Malaysia. In this paper, we report the study protocol and early results.

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Multiple sclerosis (MS) is an autoimmune disease of the central nervous system in which the immune system attacks the myelin and axons, consequently leading to demyelination and axonal injury. Magnetic resonance imaging (MRI) plays a pivotal role in the diagnosis of MS, and currently various types of MRI techniques have been used to detect the pathology of MS based on unique mechanisms. In this study, we applied the relayed nuclear Overhauser effect weighted (rNOEw) imaging to study human MS at clinical 3T.

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Intertidal benthos link tertiary predators and primary producers in marine food webs as well as directly contribute to sediment CO emission. However, current methods for studying food sources of marine benthos are time-consuming and does not allow direct estimates on feeding regime-related (including different diets, active versus dormant) CO production. We examined the food sources of mangrove crabs and gastropods as well as their corresponding CO production using cavity-ring down spectroscopy to measure the δC-CO respiration for consumers, considering the effects of feeding regime, benthos taxa, and dominant feeding habit.

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Background: Sex and gender differences in acute coronary syndrome (ACS) have been well studied in the western population. However, limited studies have examined the trends of these differences in a multi-ethnic Asian population.

Objectives: To study the trends in sex and gender differences in ACS using the Malaysian NCVD-ACS Registry.

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Gut microbiota are essential for host health and survival, but we are still far from understanding the processes involved in shaping their composition and evolution. Controlled experimental work under lab conditions as well as human studies pointed at environmental factors (i.e.

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Globally, the poultry industry is 1 of the most advanced livestock industries. Feed contributes to the biggest proportion (65-70%) of the production cost. Most feed ingredients in Malaysia are imported, which contributes to the high food bill annually, and alternative feed formulation may help decrease the cost of poultry feed.

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Diabetes mellitus (DM) is a kind of chronic metabolic disease that could be characterized by uncontrollable high blood glucose (hyperglycemia) over a prolonged period and diverse complications in various organs. These complications include activation of stress responses in bone such as oxidative stress and inflammation, which have been implicated in various bone diseases, including osteoporosis. Non-enzymatic glycation of proteins form and accumulate in patients under hyperglycemia condition.

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Diabetes mellitus is characterized by chronic hyperglycemia and its diverse complications. Hyperglycemia is associated with inflammatory responses in different organs, and diabetic patients have a higher risk of bone fracture due to increased bone weakness. Methylglyoxal, a reactive advanced glycation end product precursor, is known to have increased level in diabetic patients.

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Background And Aim: The European Association of Palliative Care recommends that family carers need education on the progression of dementia. This systematic review aimed to explore whether interventions incorporating education regarding the progressive nature of dementia increased carers' understanding of dementia and improved mental health and burden.

Method: MEDLINE, PsycINFO and CINAHL were searched to April 2018.

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BACKGROUND Melioidosis is a rare tropical bacterial infection caused by the Gram-negative soil saprophyte, Burkholderia pseudomallei. Melioidosis can mimic a variety of diseases due to its varied presentation, and unless it is treated rapidly, it can be fatal.  A rare case of melioidosis, with pericarditis and pericardial effusion, is described, which demonstrates the value of early diagnosis with echocardiography and pericardiocentesis.

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Background: Research has demonstrated that Post-Traumatic Stress Disorder (PTSD) is one of the most widely recognized mental disorders, but recognition is affected by trauma type.

Aims: The current study investigated the effect of direct versus indirect exposure to traumatic event and trauma types on Mental Health Literacy (MHL) of PTSD.

Methods: Two hundred and thirty-three participants were asked to identify the mental health problem after presentation of an unlabeled vignette describing a character experiencing PTSD symptoms.

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Objective: To investigate the risk factors of symptomatic bradyarrhythmias in relation to β-blockers use.

Methods: A hospital-based case-control study [228 patients: 108 with symptomatic bradyarrhythmias (cases) and 120 controls] was conducted in Sultanah Aminah Hospital, Malaysia between January 2011 and January 2014.

Results: The mean age was 61.

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Multiple sclerosis (MS) and neuromyelitis optica (NMO) are two common types of inflammatory demyelinating disease of the central nervous system. Early distinction of NMO from MS is crucial but quite challenging. In this study, 13 NMO spectrum disorder patients (Expanded Disability Status Scale (EDSS) of 3.

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Background: Sex differences in acute coronary syndrome (ACS) have been well studied in major registries and clinical trials in Western populations. Limited studies have examined the sex differences in ACS using a large number of Asian women as the subjects.

Objectives: The aim was to study the sex differences in ACS using the NCVD-ACS (National Cardiovascular Disease Database-Acute Coronary Syndrome) registry.

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Objectives: To assess whether gender differences exist in the clinical presentation, angiographic severity, management and outcomes in patients with coronary artery disease (CAD).

Methods: The study comprised of 1,961 women and 8,593 men who underwent percutaneous coronary intervention (PCI) and were included in the Malaysian NCVD-PCI Registry from 2007-2009. Significant stenosis was defined as ≥70% stenosis in at least one of the epicardial vessels.

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