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Juan Segura-Aguilar, Irmgard Paris, Patricia Muñoz, Emanuele Ferrari, Luigi Zecca, Fabio A Zucca
The molecular mechanisms causing the loss of dopaminergic neurons containing neuromelanin in the substantia nigra and responsible for motor symptoms of Parkinson's disease are still unknown. The discovery of genes associated with Parkinson's disease (such as alpha synuclein (SNCA), E3 ubiquitin protein ligase (parkin), DJ-1 (PARK7), ubiquitin carboxyl-terminal hydrolase isozyme L1 (UCHL-1), serine/threonine-protein kinase (PINK-1), leucine-rich repeat kinase 2 (LRRK2), cation-transporting ATPase 13A1 (ATP13A), etc...
June 2014: Journal of Neurochemistry
Maria Stamelou, Niall P Quinn, Kailash P Bhatia
Recently, a number of genetic parkinsonian conditions have been recognized that share some features with the clinical syndromes of progressive supranuclear palsy (PSP), corticobasal degeneration (CBD), and multiple system atrophy (MSA), the classic phenotypic templates of atypical parkinsonism. For example, patients with progranulin, dynactin, or ATP13A gene mutations may have vertical supranuclear gaze palsy. This has made differential diagnosis difficult for practitioners. In this review, our goal is to make clinicians aware of these genetic disorders and provide clinical clues and syndromic associations, as well as investigative features, that may help in diagnosing these disorders...
August 2013: Movement Disorders: Official Journal of the Movement Disorder Society
Diego P De La Hera, Gerardo R Corradi, Hugo P Adamo, Felicitas De Tezanos Pinto
P-type ion pumps are membrane transporters that have been classified into five subfamilies termed P1-P5. The ion transported by the P5-ATPases is not known. Five genes, ATP13A (ATPase type 13A) 1-ATP13A5, that belong to the P5-ATPase group have been identified in humans. Mutations of the human gene ATP13A2 underlie a form of PD (Parkinson's disease). Previous studies have suggested a relation between polyamines and P5B-ATPases. We have recently shown that the cytotoxicity induced by the polyamine analogue paraquat (1,1'-dimethyl-4,4'-bipyridinium), which is an environmental agent related to PD development, was increased in ATP13A2-expressing CHO (Chinese-hamster ovary) cells...
February 15, 2013: Biochemical Journal
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