Parkinson's disease (PD) is one of the most common neurodegenerative diseases. Investigating individuals with the most identical genetic background is optimal for minimizing the genetic contribution to gene expression. These individuals include monozygotic twins discordant for PD. Monozygotic twins have the same genetic background, age, sex, and often similar environmental conditions. The aim of this study was to carry out a transcriptome analysis of the peripheral blood of three pairs of monozygotic twins discordant for PD. We identified the metabolic process "circadian behavior" as a priority process for further study. Different expression of genes included in the term "circadian behavior" confirms that this process is involved in PD pathogenesis. We found increased expression of three genes associated with circadian behavior, i.e., , , and , in twins with PD. These genes can be considered as potential candidate genes for this disease.
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http://dx.doi.org/10.3390/cells11162599 | DOI Listing |
Alzheimers Dement
December 2024
Centre for Healthy Brain Ageing (CHeBA), University of New South Wales, UNSW Sydney, NSW, Australia.
Background: Subjective Cognitive Complaints (SCCs) can often precede mild cognitive impairment and dementia longitudinally. While increasingly considered an early prodromal stage of dementia, SCCs can also be a symptom of depression. Previous research found that SCCs in the absence of cognitive impairment, controlling for symptoms of depression, were moderately heritable and genetically associated with memory.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
University of Virginia, Charlottesville, VA, USA.
Background: DNA methylation (DNAm) age measures, or 'epigenetic clocks', surpass chronological age in their ability to predict age-related morbidities and mortality. The Louisville Twin Study (LTS) presents an opportunity to clarify the role of early life environmental exposures and development in biological and cognitive aging in midlife. We expect that second-generation DNAm age measures trained to predict age related outcomes and death, independent of chronological age, will be sensitive to cognitive ability in midlife.
View Article and Find Full Text PDFJ Affect Disord
December 2024
Department of Psychology, City, University of London, London, United Kingdom; Northampton Square, London EC1V 0HB, United Kingdom. Electronic address:
Anxiety and fear are emotions often intertwined in response to aversive stimuli, complicating efforts to differentiate them and understand their distinct consequences. This study explores the common genetic and environmental factors contributing to the co-occurrence of anxiety disorders and dimensions of the revised Reinforcement Sensitivity Theory (rRST). A sample of 356 monozygotic (22.
View Article and Find Full Text PDFNeuropediatrics
December 2024
Great Ormond Street Hospital for Children, London, United Kingdom of Great Britain and Northern Ireland.
We describe a set of monozygotic twins with GRIN2B-related neurodevelopmental disorder (GRIN2B-ND) who exhibited distinct clinical and imaging characteristics due to a de novo heterozygous pathogenic variant in the GRIN2B gene (c.2453T>C, p.Met818Thr).
View Article and Find Full Text PDFClin Nutr
December 2024
Faculty of Sport and Health Sciences, Gerontology Research Center, University of Jyväskylä, 40014 Jyväskylä, Finland; The Wellbeing Services County of Central Finland, 40620 Jyväskylä, Finland. Electronic address:
Background & Aims: Suboptimal diets increase morbidity and mortality risk. Epigenetic clocks are algorithms that can assess health and lifespan, even at a young age, before clinical manifestations of diseases. We investigated the association between dietary patterns and biological aging in young adult twins.
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