Publications by authors named "M C Chartier-Harlin"

Article Synopsis
  • The study explores how copy number variations (CNVs) affect the development of Parkinson's disease (PD), aiming to identify new genetic mechanisms linked to sporadic cases of the disease.
  • Utilizing data from over 11,000 PD patients and nearly 9,000 controls, the researchers discovered 14 significant CNV loci associated with PD, including various gene duplications and deletions.
  • The research highlights a higher prevalence of CNVs in specific PD-related genes among patients and suggests that certain CNVs, especially those involving the gene, may lead to earlier onset of the disease in early-onset PD cases.
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Article Synopsis
  • The study investigates the relationship between body mass index (BMI) and Parkinson's disease (PD) using a method called Mendelian randomization to determine if higher genetically predicted BMI is linked to a lower incidence of PD.
  • Researchers analyzed genetic data from large groups of individuals, including over 800,000 for BMI and nearly 29,000 for PD, focusing on factors like age, disease duration, and gender to examine the associations.
  • Results indicated an inverse relationship between genetically predicted BMI and PD, particularly among younger participants and women, suggesting that lower BMI may be associated with a higher risk of developing Parkinson's disease.
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Parkinson´s disease (PD) is a common neurodegenerative movement disorder and leucine-rich repeat kinase 2 (LRRK2) is a promising therapeutic target for disease intervention. However, the ability to stratify patients who will benefit from such treatment modalities based on shared etiology is critical for the success of disease-modifying therapies. Ciliary and centrosomal alterations are commonly associated with pathogenic LRRK2 kinase activity and can be detected in many cell types.

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Mutations in leucine-rich repeat kinase 2 (LRRK2) are a common cause of inherited and sporadic Parkinson's disease (PD) and previous work suggests that dephosphorylation of LRRK2 at a cluster of heterologous phosphosites is associated to disease. We have previously reported subunits of the PP1 and PP2A classes of phosphatases as well as the PAK6 kinase as regulators of LRRK2 dephosphorylation. We therefore hypothesized that PAK6 may have a functional link with LRRK2's phosphatases.

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The neuropeptide VGF was recently proposed as a neurodegeneration biomarker. The Parkinson's disease-related protein leucine-rich repeat kinase 2 (LRRK2) regulates endolysosomal dynamics, a process that involves SNARE-mediated membrane fusion and could regulate secretion. Here we investigate potential biochemical and functional links between LRRK2 and v-SNAREs.

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