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Akio Kikuchi

Researcher at Tohoku University

Publications -  106
Citations -  3523

Akio Kikuchi is an academic researcher from Tohoku University. The author has contributed to research in topics: Parkinson's disease & Neurodegeneration. The author has an hindex of 31, co-authored 100 publications receiving 3020 citations. Previous affiliations of Akio Kikuchi include Japanese Ministry of Agriculture, Forestry and Fisheries.

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Systemic increase of oxidative nucleic acid damage in Parkinson's disease and multiple system atrophy.

TL;DR: The data presented here suggest that systemic DNA/RNA oxidation is commonly observed in neurodegenerative diseases and implies that female patients with PD show higher levels of oxidative stress, which may explain the faster progression of this disease in females.
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Severe olfactory dysfunction is a prodromal symptom of dementia associated with Parkinson's disease: a 3 year longitudinal study

TL;DR: It is suggested that brain regions related to olfactory function are closely associated with cognitive decline and that severe hyposmia is a prominent clinical feature that predicts the subsequent development of Parkinson's disease dementia.
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VPS35 dysfunction impairs lysosomal degradation of α-synuclein and exacerbates neurotoxicity in a Drosophila model of Parkinson's disease

TL;DR: It is shown that retromer depletion increases the lysosomal turnover of the mannose 6-phosphate receptor, thereby affecting the trafficking of cathepsin D (CTSD) and indicating that the Retromer may play a crucial role in αSYN degradation by modulating the maturation of CTSD and might thereby contribute to the pathogenesis of the disease.
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Serine 129 Phosphorylation of α-Synuclein Induces Unfolded Protein Response-mediated Cell Death

TL;DR: It seems plausible that α-synuclein toxicity is dependent on the phosphorylation at Ser129 that induces the UPRs, possibly triggered by the disturbed endoplasmic reticulum-Golgi trafficking.
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The AAA-ATPase VPS4 Regulates Extracellular Secretion and Lysosomal Targeting of α-Synuclein

TL;DR: It is demonstrated that α-synuclein (αSYN), a principal culprit for Lewy pathology in Parkinson's disease (PD), was present in endosomal compartments and detectably secreted into the extracellular milieu, and VPS4, a master regulator of MVB sorting, may serve as a determinant of lysosomal targeting or extacellular secretion of αSYN and thereby contribute to the intercellular propagation of LewY pathology in PD.