Publications by authors named "Perminder Singh Sachdev"

Article Synopsis
  • Cerebral small vessel disease (cSVD) is linked to stroke and dementia and has been under-researched in low- and middle-income countries (LMICs), prompting a systematic review to investigate its prevalence in these regions.
  • The study analyzed data from articles published between January 2000 and March 2022, culminating in the inclusion of 42 studies from 12 global regions, most notably from China.
  • Findings revealed varying prevalence rates of cSVD markers, with moderate-to-severe white matter hyperintensities being 58.4% among dementia patients, and age was identified as a significant predictor of disease prevalence.
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Background: Over the last decade resveratrol has been trialled for the prevention and treatment of cognitive decline; however, the results have shown a conflict between human studies compared with animal studies, especially on cognition, blood pressure, neuroimaging, and mood.

Methods: Human clinical trials and animal studies published prior to January 2020, were identified searching across major electronic databases. PRISMA guidelines were used for data extraction, which was independently performed by two authors.

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An 87-year-old man with dementia with Lewy bodies, living in residential aged care, exhibited rapid functional decline and weight loss associated with injurious falls over 9 months. Independent clinicians (geriatrician and exercise physiologist) assessed him during an extended wait-list period prior to his commencement of a pilot exercise trial. The highly significant role of treatable factors including polypharmacy, sarcopenia and malnutrition as contributors to frailty and rapid functional decline in this patient are described.

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Background: Dementia is the leading cause of disability worldwide, and interventions aimed at reducing the prevalence and burden of the disease are urgently needed. Maintain Your Brain (MYB) is a randomized controlled trial of a multimodal digital health intervention targeting modifiable dementia risk factors to combat cognitive decline and potentially prevent dementia. In addition to behavioral modules targeting mood, nutrition, and physical exercise, a new Brain Training System (BTS) will deliver computerized cognitive training (CCT) throughout the trial to provide systematic, challenging, and personally adaptive cognitive activity.

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Lipidomic profiling of plasma is an emerging field, given the importance of lipids in major cellular pathways, and is dependent on efficient lipid extraction protocols. Recent attention has turned to plasma lipidomics as a means to identify potential diagnostic and prognostic biomarkers related to dementia, neuropsychiatric health and disease. Although several solvent-based lipid extraction protocols have been developed and are currently in use, novel and more efficient methods could greatly simplify lipid analysis in plasma and warrant investigation.

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Article Synopsis
  • Nicotinamide adenine dinucleotide (NAD) is crucial for various cellular processes, including energy transfer, DNA repair, and gene expression regulation, and its metabolites serve as important indicators of cellular health.
  • The study aimed to create an efficient method for accurately measuring NAD metabolites in glial and oocyte cells using liquid chromatography and mass spectrometry techniques.
  • The developed method successfully quantified 17 NAD metabolites in human astroglioma cells and demonstrated significant metabolic changes under different culture conditions, making it a valuable tool for analyzing disease-related metabolic changes.
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We report a case of melancholic depression with catatonic features presenting as a rapidly progressive organic brain syndrome, initially thought to be probable Creutzfeldt-Jakob disease. The case highlights the fundamental importance of thorough exclusion of treatable pathology masquerading as an irreversible syndrome.

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Background: The Montreal Cognitive Assessment (MoCA) and Mini-Mental State Examination (MMSE) were compared with and without the addition of a brief processing speed test, the symbol digit modalities test (SDMT), for vascular cognitive impairment (VCI) screening at three to six months after stroke.

Methods: Patients with ischemic stroke and transient ischemic attack were assessed with MoCA and MMSE, as well as a formal neuropsychological battery three to six months after stroke. VCI was defined by impairment in any cognitive domain on neuropsychological testing.

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We present the case of a 32-year-old Caucasian woman with severe treatment-refractory obsessive compulsive disorder (OCD) and Tourette's syndrome. Both conditions were present prior to age 5 and impacted significantly on the patient's functioning. Multiple trials of evidence-based pharmacological and behavioural therapies had not achieved remission of symptoms.

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