نتایج جستجو برای: brain iron accumulation

تعداد نتایج: 749017  

Journal: :iranian journal of child neurology 0
seyed hassan tonekaboni* 1. pediatric neurology research center, shahid beheshti university of medical sciences (sbmu), tehran, iran 2. pediatric neurology center of excellence, department of pediatric neurology, mofid children hospital, faculty of medicine, shahid beheshti university of medical sciences (sbmu), tehran, iran mohsen mollamohammadi 3. pediatric neurology department, hazrat fatemeh masoumeh hospital, qom university of medical sciences, qom, iran

how to cite this article: tonekaboni sh, mollamohammadi m. neurodegeneration with brain iron accumulation: an overview. iran j child neurol. 2014 autumn;8(4): 1-8. abstract objective neurodegeneration with brain iron accumulation (nbia) is a group of neurodegenerative disorder with deposition of iron in the brain (mainly basal ganglia) leading to a progressive parkinsonism, spasticity, dystonia...

Journal: :American journal of clinical pathology 2004
S M Hossein Sadrzadeh Yasi Saffari

Iron is the most important element in the body, essential for almost all types of cells, including brain cells. The role of iron in the brain has been known for years. Iron deficiency and iron excess have been associated with pathophysiology of different brain disorders. Iron deficiency has been reported to have a role in brain development and the pathophysiology of restless legs syndrome. Iron...

Journal: :iranian journal of neurology 0
mitra ansari dezfouli school of biology, college of science, university of tehran, tehran, iran. elham jaberi school of biology, college of science, university of tehran, tehran, iran afagh alavi school of biology, college of science, university of tehran, tehran, iran mohammad rezvani department of neurology, tehran university of medical sciences, tehran, iran gholamali shahidi associate professor, department of neurology, tehran university of medical sciences, tehran, iran elahe elahi professor, department of biotechnology, college of science, university of tehran, tehran, iran

background: pantothenate kinase associated neurodegeneration (pkan) is the most prevalent type of neurodegeneration with brain iron accumulation (nbia) disorders characterized by extrapyramidal signs, and 'eye-of-the-tiger' on t2 brain magnetic resonance imaging (mri) characterized by hypointensity in globus pallidus and a hyperintensity in its core. all pkan patients have homozygous or compoun...

Journal: :Arquivos de Neuro-Psiquiatria 2016

2011
Michael Khalil Charlotte Teunissen Christian Langkammer

Increased iron deposition might be implicated in multiple sclerosis (MS). Recent development of MRI enabled to determine brain iron levels in a quantitative manner, which has put more interest on studying the role of iron in MS. Evidence for abnormal iron homeostasis in MS comes also from analyses of iron and iron-related proteins in CSF and blood and postmortem MS brain sections. However, it i...

Journal: :Folia neuropathologica 2005
Allison Gregory Susan J Hayflick

Neurodegeneration with brain iron accumulation (NBIA) describes a group of progressive extrapyramidal disorders with radiographic evidence of focal iron accumulation in the brain, usually in the basal ganglia. Patients previously diagnosed with Hallervorden-Spatz syndrome fall into this category. Mutations in the PANK2 gene account for the majority of NBIA cases and cause an autosomal recessive...

Journal: :NeuroImage 2008
Xiaojun Xu Qidong Wang Minming Zhang

It is well known that iron accumulates in the brains of patients with various neurodegenerative diseases. To better understand disease-related iron changes, it is necessary to know the physiological distribution and accumulation of iron in the human brain. Studies have shown that brain iron levels increase with aging. However, the effects of gender and hemispheric laterality on iron accumulatio...

2013
Dong Lin Jing Ding Jian-Ying Liu Yi-Feng He Zhi Dai Cai-Zhong Chen Wei-Zhong Cheng Jian Zhou Xin Wang

PURPOSE Excessive brain iron accumulation contributes to cognitive impairments in hepatitis B virus (HBV)-related cirrhotic patients. The underlying mechanism remains unclear. Hepcidin, a liver-produced, 25-aminoacid peptide, is the major regulator of systemic iron metabolism. Abnormal hepcidin level is a key factor in some body iron accumulation or deficiency disorders, especially in those ass...

2016
Thomas Walker Christos Michaelides Antigoni Ekonomou Kalotina Geraki Harold G Parkes Maria Suessmilch Amy H Herlihy William R Crum Po-Wah So

Despite regulation, brain iron increases with aging and may enhance aging processes including neuroinflammation. Increases in magnetic resonance imaging transverse relaxation rates, R2 and R2*, in the brain have been observed during aging. We show R2 and R2* correlate well with iron content via direct correlation to semi-quantitative synchrotron-based X-ray fluorescence iron mapping, with age-a...

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