نتایج جستجو برای: brain iron accumulation

تعداد نتایج: 749017  

2018
Olufemi D Akilo Pradeep Kumar Yahya E Choonara Priyamvada Pradeep Lisa C du Toit Viness Pillay

Alzheimer's disease (AD) is known to be caused by the accumulation of deformed beta amyloid and hyperphosphorylated tau proteins resulting into formation and aggregation of senile plaques and neurofibrillary tangles in the brain. Additionally, AD is associated with the accumulation of iron or metal ions in the brain which causes oxidative stress. Galantamine (Gal) is one of the therapeutic agen...

Journal: :Archives of neurology 2007
George K Tofaris Tamas Revesz Thomas S Jacques Savvas Papacostas Jeremy Chataway

BACKGROUND Neurodegeneration with brain iron accumulation is a rare neurodegenerative disorder characterized by iron deposition in the basal ganglia and neuroaxonal dystrophy. Familial cases with mutations in the pantothenate kinase gene are associated with a specific phenotype. In contrast, sporadic cases are heterogeneous in their clinical presentation. OBJECTIVE To describe an atypical cas...

2015
Khashayar Dashtipour Manju Liu Camellia Kani Pejman Dalaie Andre Obenaus Daniel Simmons Nicole M. Gatto Mehran Zarifi

Background. Iron is considered to lead to neurodegeneration and has been hypothesized as a possible cause of Parkinson's disease (PD). Susceptibility-weighted imaging (SWI) is a powerful tool to measure phase related iron content of brain. Methods. Twelve de novo patients with PD were recruited from the Movement Disorders Clinic, Department of Neurology, Loma Linda University. Twelve age- and s...

2014
Jirapas Sripetchwandee Noppamas Pipatpiboon Nipon Chattipakorn Siriporn Chattipakorn

BACKGROUND Excessive iron accumulation leads to iron toxicity in the brain; however the underlying mechanism is unclear. We investigated the effects of iron overload induced by high iron-diet consumption on brain mitochondrial function, brain synaptic plasticity and learning and memory. Iron chelator (deferiprone) and antioxidant (n-acetyl cysteine) effects on iron-overload brains were also stu...

Journal: :Stroke 2009
Yuxiang Gu Ya Hua Richard F Keep Lewis B Morgenstern Guohua Xi

BACKGROUND AND PURPOSE Our previous studies found that deferoxamine reduces intracerebral hemorrhage (ICH)-induced brain injury in rats. The current study examined whether deferoxamine reduces brain injury in a piglet ICH model. METHODS Pigs received an injection of autologous blood into the right frontal lobe. Deferoxamine (50 mg/kg, IM) or vehicle was administered 2 hours after ICH and then...

Journal: :Brain : a journal of neurology 2013
Rick M Dijkhuizen

basic disease mechanism has also recently been implicated in a novel form of hereditary spastic paraparesis due to mutations in another beta-propeller protein, tectonin beta-propeller repeat-con-taning 2, TECPR2 (Oz-Levi et al., 2012). However it is still unclear how increased autophagy relates to iron accumulation. Various basic mechanisms have been implicated in NBIA (altered iron metabolism ...

2013
Jianfang Chen Eileen Marks Barry Lai Zhaojie Zhang James A. Duce Linh Q. Lam Irene Volitakis Ashley I. Bush Steven Hersch Jonathan H. Fox

Huntington's disease (HD) is a progressive neurodegenerative disorder caused by a polyglutamine-encoding CAG expansion in the huntingtin gene. Iron accumulates in the brains of HD patients and mouse disease models. However, the cellular and subcellular sites of iron accumulation, as well as significance to disease progression are not well understood. We used independent approaches to investigat...

Journal: :Blood 2007
Nathalie Boddaert Kim Hanh Le Quan Sang Agnès Rötig Anne Leroy-Willig Serge Gallet Francis Brunelle Daniel Sidi Jean-Christophe Thalabard Arnold Munnich Z Ioav Cabantchik

Genetic disorders of iron metabolism and chronic inflammation often evoke local iron accumulation. In Friedreich ataxia, decreased iron-sulphur cluster and heme formation leads to mitochondrial iron accumulation and ensuing oxidative damage that primarily affects sensory neurons, the myocardium, and endocrine glands. We assessed the possibility of reducing brain iron accumulation in Friedreich ...

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