نتایج جستجو برای: iron age

تعداد نتایج: 890085  

2016
Kiersten L. Berggren Zhen Lu Julia A. Fox Megan Dudenhoeffer Sonal Agrawal Jonathan H. Fox

BACKGROUND Dysregulation of iron homeostasis is implicated in the pathogenesis of Huntington's disease. We have previously shown that increased iron intake in R6/2 HD neonatal mice, but not adult R6/2 HD mice potentiates disease outcomes at 12-weeks of age corresponding to advanced HD [Redox Biol. 2015;4 : 363-74]. However, whether these findings extend to other HD models is unknown. In particu...

Journal: :Archives of ophthalmology 2003
Paul Hahn Ann H Milam Joshua L Dunaief

OBJECTIVE To investigate whether iron is involved in the pathogenesis of age-related macular degeneration (AMD). METHODS Postmortem AMD-affected (nonexudative or exudative) and healthy maculas were studied using the 3,3'-diaminobenzidine-enhanced Perls Prussian blue stain. The Perls Prussian blue stain was quantified by computer-assisted analysis of digital images. To determine whether the ir...

2016
Nicolai Petry Ibironke Olofin Richard F. Hurrell Erick Boy James P. Wirth Mourad Moursi Moira Donahue Angel Fabian Rohner

Iron deficiency is commonly assumed to cause half of all cases of anemias, with hereditary blood disorders and infections such as hookworm and malaria being the other major causes. In countries ranked as low, medium, and high by the Human Development Index, we conducted a systematic review of nationally representative surveys that reported the prevalence of iron deficiency, iron deficiency anem...

2010
Catherine Kim Kai McKeever Bullard William H. Herman Gloria L. Beckles

OBJECTIVE Iron deficiency has been reported to elevate A1C levels apart from glycemia. We examined the influence of iron deficiency on A1C distribution among adults without diabetes. RESEARCH DESIGN AND METHODS Participants included adults without self-reported diabetes or chronic kidney disease in the National Health and Nutrition Examination Survey 1999-2006 who were aged > or =18 years of ...

Journal: :Lancet 2006
Camila M Chaparro Lynnette M Neufeld Gilberto Tena Alavez Raúl Eguia-Líz Cedillo Kathryn G Dewey

BACKGROUND Delayed clamping of the umbilical cord increases the infant's iron endowment at birth and haemoglobin concentration at 2 months of age. We aimed to assess whether a 2-minute delay in the clamping of the umbilical cord of normal-weight, full-term infants improved iron and haematological status up to 6 months of age. METHODS 476 mother-infant pairs were recruited at a large obstetric...

Journal: :Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements 2014
Patrícia Ramos Agostinho Santos Nair Rosas Pinto Ricardo Mendes Teresa Magalhães Agostinho Almeida

The link between brain iron homeostasis and neurodegenerative disease has been the subject of extensive research. There is increasing evidence of iron accumulation during ageing, and altered iron levels in some specific brain regions in neurodegenerative disease patients have been reported. Using graphite furnace atomic absorption spectrometry after microwave-assisted acid digestion of the samp...

Journal: :BMC Public Health 2007
Ximena Duque Sergio Flores-Hernández Samuel Flores-Huerta Ignacio Méndez-Ramírez Sergio Muñoz Bernardo Turnbull Gloria Martínez-Andrade Rosa I Ramos Marco González-Unzaga María E Mendoza Homero Martínez

BACKGROUND In Mexico, as in other developing countries, micronutrient deficiencies are common in infants between 6 and 24 months of age and are an important public health problem. The objective of this study was to determine the prevalence of anemia and of iron, folic acid, and zinc deficiencies in Mexican children under 2 years of age who use the health care services provided by the Mexican In...

2014
Carel Theo Jozef Wreesmann

The current maximum acceptable daily intake (ADI) of ethylenediaminetetraacetic acid (EDTA) of 1.9 mg day(-1) per kilogram bodyweight (mg day(-1)  kgbw(-1) ) limits the daily intake of iron as iron EDTA [ferric sodium EDTA; sodium iron(III) EDTA] to approximately 2-2.5 mg day(-1) for children 6-24 months of age. This limit was defined by the Joint FAO/WHO Expert Committee on Food Additives (JEC...

2007
M. Svoboda K. Nechvatalova J. Krejci J. Drabek R. Ficek M. Faldyna

The aim of this study was to investigate an antibody response to tetanus toxoid in iron-deficient piglets. Ten piglets were not given any iron preparation until the age of 21 days. Ten piglets were given 200 mg Fe3+ dextran intramuscularly at the age of 3 days. All piglets were immunized with tetanus toxoid 14 days after birth. Reimmunization was performed 21 days after the first immunization. ...

2004
Jenni Bradley Elizabeth A. Leibold Z. Leah Harris Jane D. Wobken Stephen Clarke Kimberly B. Zumbrennen Richard S. Eisenstein Michael K. Georgieff

Placental iron transport during the last trimester of pregnancy determines the iron endowment of the neonate. Iron transport is a function of the major iron transport proteins, transferrin receptor-1 (TfR-1) and ferroportin-1 (FPN-1). The mRNAs for TfR-1, and potentially FPN-1, are post-transcriptionally regulated by iron regulatory protein-1 (IRP-1) and -2 (IRP-2). We assessed the effect of ge...

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