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https://www.readbyqxmd.com/read/27900761/the-effect-of-iron-balance-on-platelet-counts-in-blood-donors
#1
Anne F Eder, Yu Ying Yau, Kamille West
BACKGROUND: Thrombocytosis (or, less commonly, thrombocytopenia) is associated with iron-deficiency anemia and resolves with iron therapy. Many volunteer blood donors have low iron stores, with or without anemia. Iron balance could affect platelet counts in blood donors. STUDY DESIGN AND METHODS: Whole blood donors deferred for finger-stick hemoglobin levels less than 12.5 g/dL were evaluated by complete blood count and serum iron panel before and after oral iron treatment...
November 29, 2016: Transfusion
https://www.readbyqxmd.com/read/27900547/estimating-prevalence-of-functional-iron-deficiency-anaemia-in-advanced-cancer
#2
Karen Neoh, Simon Stanworth, Sant-Rayn Pasricha, Michael I Bennett
PURPOSE: Anaemia is a common complication of cancer causing symptoms including fatigue. It is also associated with shorter survival. Cancer causes systemic inflammation which interrupts iron metabolism leading to a functional iron deficiency (FID). There are few data on prevalence or aetiology of anaemia in those with advanced cancer. We aimed to establish the prevalence of anaemia and estimate extent of FID anaemia in patients with advanced cancer. METHODS: All patients with advanced cancer referred to two UK specialist palliative care services over 1 year were identified...
November 29, 2016: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/27897245/engineering-genetically-encoded-mineralization-and-magnetism-via-directed-evolution
#3
Xueliang Liu, Paola A Lopez, Tobias W Giessen, Michael Giles, Jeffrey C Way, Pamela A Silver
Genetically encoding the synthesis of functional nanomaterials such as magnetic nanoparticles enables sensitive and non-invasive biological sensing and control. Via directed evolution of the natural iron-sequestering ferritin protein, we discovered key mutations that lead to significantly enhanced cellular magnetism, resulting in increased physical attraction of ferritin-expressing cells to magnets and increased contrast for cellular magnetic resonance imaging (MRI). The magnetic mutants further demonstrate increased iron biomineralization measured by a novel fluorescent genetic sensor for intracellular free iron...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27896921/effect-of-iron-supplementation-during-lactation-on-maternal-iron-status-and-oxidative-stress-a-randomized-controlled-trial
#4
Josh M Jorgensen, Zhenyu Yang, Bo Lönnerdal, Caroline J Chantry, Kathryn G Dewey
We examined the effect of iron-containing prenatal vitamin-mineral supplements taken postpartum on biomarkers of iron status and oxidative stress. Lactating women (n = 114) were randomly assigned to consume daily one iron-free prenatal vitamin-mineral supplement plus either 27 mg of iron or placebo for approximately 3.5 months. The placebo group took the tablets between meals, while those given iron took the tablets either with (Fe-W) or between meals (Fe-B). Blood and urine samples were collected before and after the supplementation period to analyze hemoglobin (Hb), ferritin, hepcidin, transferrin saturation (TfSat), total plasma iron, and biomarkers of oxidative stress (isoprostane and 8-hydroxy-2-deoxyguanosine (8-OHdG)) and inflammation (C-reactive protein (CRP) and alpha-1-acid glycoprotein (AGP))...
November 29, 2016: Maternal & Child Nutrition
https://www.readbyqxmd.com/read/27896919/duration-of-exclusive-breastfeeding-is-a-positive-predictor-of-iron-status-in-6-to-10-month-old-infants-in-rural-kenya
#5
Mary A Uyoga, Simon Karanja, Daniela Paganini, Colin I Cercamondi, Sophie A Zimmermann, Benjamin Ngugi, Penny Holding, Diego Moretti, Michael B Zimmermann
BACKGROUND: The prevalence of iron-deficiency anemia (IDA) is high in infants in Sub-Saharan Africa. Exclusive breastfeeding of infants to 6 months of age is recommended by the World Health Organization, but breast milk is low in iron. Some studies suggest exclusive breastfeeding, although beneficial for the infant, may increase risk for IDA in resource-limited settings. OBJECTIVE: To determine if duration of exclusive breastfeeding is associated with anemia and iron deficiency in rural Kenyan infants...
November 29, 2016: Maternal & Child Nutrition
https://www.readbyqxmd.com/read/27894198/a-randomized-clinical-trial-of-the-efficacy-of-single-versus-double-daily-dose-of-oral-iron-for-prevention-of-iron-deficiency-anemia-in-women-with-twin-gestations
#6
Mohammed K Ali, Ahmed M Abbas, Ahmed M Abdelmagied, Ghada E Mohammed, Osama S Abdalmageed
OBJECTIVE: The study aims to assess the efficacy of single versus double-daily oral iron dose on prevention of iron deficiency anemia in women with twin gestations. MATERIALS AND METHODS: A randomized controlled trial (NCT02858505) conducted at Woman's Health Hospital, Assiut, Egypt, between the August 2015 and June 2016 included 120 non-anemic pregnant women with twin gestations in the first trimester. Women were randomly assigned to either group I (27 mg elemental iron) or group II (54 mg elemental iron) daily starting from 12 weeks of pregnancy till 36 weeks...
November 28, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27893873/association-of-cerebrospinal-fluid-ferritin-level-with-preclinical-cognitive-decline-in-apoe-%C3%AE%C2%B54-carriers
#7
Scott Ayton, Noel G Faux, Ashley I Bush
No abstract text is available yet for this article.
November 28, 2016: JAMA Neurology
https://www.readbyqxmd.com/read/27893677/impact-of-iron-deficiency-anemia-on-the-function-of-the-immune-system-in-children
#8
Tamer Hasan Hassan, Mohamed Ahmed Badr, Nehad Ahmed Karam, Marwa Zkaria, Hosam Fathy El Saadany, Doaa Mohamed Abdel Rahman, Doaa Abdallah Shahbah, Salah Mohamed Al Morshedy, Manar Fathy, Asmaa Mohamed Hosni Esh, Amal Mohamed Selim
The importance of iron deficiency as a public health problem is based ultimately on the seriousness of its consequences on health. The most extensively investigated consequences of iron deficiency involve work performance and immune function. The significance of the effects on work performance is generally accepted. In contrast, data on the influence of iron deficiency on immune function are often perceived as being confusing and contradictory.We aimed to evaluate the effect of iron deficiency anemia on humoral, cellular, nonspecific immunity, and also the effect on the cytokines that are the key factors of many immunologic steps...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27893668/outcome-of-endoscopy-negative-iron-deficiency-anemia-in-patients-above-65-a-longitudinal-multicenter-cohort
#9
Raphaël Clere-Jehl, Erik Sauleau, Stefan Ciuca, Mickael Schaeffer, Amanda Lopes, Bernard Goichot, Thomas Vogel, Georges Kaltenbach, Eric Bouvard, Jean-Louis Pasquali, Daniel Sereni, Emmanuel Andres, Anne Bourgarit
After the age of 65 years, iron deficiency anemia (IDA) requires the elimination of digestive neoplasia and is explored with upper and lower gastrointestinal (GI) endoscopy. However, such explorations are negative in 14% to 37% of patients. To further evaluate this issue, we evaluated the outcomes of patients aged over 65 years with endoscopy-negative IDA.We retrospectively analyzed the outcomes of in-patients over the age of 65 years with IDA (hemoglobin <12 g/dL and ferritin <70 μg/L) who had negative complete upper and lower GI endoscopies in 7 tertiary medical hospitals...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27892869/serum-c-reactive-protein-and-ferritin-concentrations-in-dogs-undergoing-leishmaniosis-treatment
#10
Silvia Martinez-Subiela, Luis Pardo-Marín, Fernando Tecles, Gad Baneth, Jose J Cerón
Monitoring of selected serum acute phase proteins like C-reactive protein (CRP) and ferritin could be useful for evaluation of the response to treatment in both naturally-occurring and experimentally-induced leishmaniosis. However studies until date have only been focused on dogs with an adequate response to the treatment and there is a lack of knowledge about the possible associations between the CRP and ferritin and the different clinicopathological conditions that can appear after treatment. Thus, the main objective of this retrospective study was to evaluate and compare the serum concentration of CRP and ferritin between three possible situations that dogs which undergo leishmaniosis treatment could have: responsive with total recovery, responsive with only clinical recovery but persistent abnormalities in biochemical analytes, and unresponsive with clinical and biochemical changes...
September 9, 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/27891416/effect-of-oral-iron-on-markers-of-oxidative-stress-and-antioxidant-status-in-children-with-iron-deficiency-anaemia
#11
Zeeba Zaka-Ur-Rab, Mohammad Adnan, Syed Moiz Ahmad, Najmul Islam
INTRODUCTION: Conflicting reports are available on the relationship of Iron Deficiency Anaemia (IDA) and iron therapy with oxidative stress. AIM: To study the levels of markers of oxidative stress and anti-oxidant status in children with IDA and to assess the effect of iron therapy on the same. MATERIALS AND METHODS: This prospective, single centre, hospital based study was a sub-study of a randomized controlled trial conducted in the Department of Paediatrics, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh in collaboration with the Department of Biochemistry (of the same institution) between October 2009 to February 2011...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27890658/magnetic-mapping-of-iron-in-rodent-spleen
#12
Angela R Blissett, Brooke Ollander, Brittany Penn, Dana M McTigue, Gunjan Agarwal
Evaluation of iron distribution and density in biological tissues is important to understand the pathogenesis of a variety of diseases and the fate of exogenously administered iron-based carriers and contrast agents. Iron distribution in tissues is typically characterized via histochemical (Perl's) stains or immunohistochemistry for ferritin, the major iron storage protein. A more accurate mapping of iron can be achieved via ultrastructural transmission electron microscopy (TEM) based techniques, which involve stringent sample preparation conditions...
November 24, 2016: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/27889519/iron-induced-nitric-oxide-leads-to-an-increase-in-the-expression-of-ferritin-during-the-senescence-of-lotus-japonicus-nodules
#13
Sirinapa Chungopast, Mallika Duangkhet, Shigeyuki Tajima, Jian Feng Ma, Mika Nomura
Iron is an essential nutrient for legume-rhizobium symbiosis and accumulates abundantly in the nodules. However, the concentration of free iron in the cells is strictly controlled to avoid toxicity. It is known that ferritin accumulates in the cells as an iron storage protein. During nodule senescence, the expression of the ferritin gene, Ljfer1, was induced in Lotus japonicus. We investigated a signal transduction pathway leading to the increase of Ljfer1 in the nodule. The Ljfer1 promoter of L. japonicus contains a conserved Iron-Dependent Regulatory Sequence (IDRS)...
November 18, 2016: Journal of Plant Physiology
https://www.readbyqxmd.com/read/27888997/comprehensive-assessment-of-myositis-specific-autoantibodies-in-polymyositis-dermatomyositis-associated-interstitial-lung-disease
#14
Hironao Hozumi, Tomoyuki Fujisawa, Ran Nakashima, Takeshi Johkoh, Hiromitsu Sumikawa, Akihiro Murakami, Noriyuki Enomoto, Naoki Inui, Yutaro Nakamura, Yuji Hosono, Yoshitaka Imura, Tsuneyo Mimori, Takafumi Suda
OBJECTIVES: Myositis-specific autoantibodies (MSAs) are associated with clinical phenotypes in polymyositis/dermatomyositis (PM/DM). No study has investigated the clinical features based on comprehensive MSA assessment in PM/DM-associated interstitial lung disease (ILD). We aimed to determine the practical significance of MSAs in PM/DM-ILD. METHODS: Sixty consecutive PM/DM-ILD patients were retrospectively analysed. Serum MSAs were comprehensively measured using immunoprecipitation assay...
December 2016: Respiratory Medicine
https://www.readbyqxmd.com/read/27886796/adult-onset-still-s-disease-advances-in-the-treatment
#15
REVIEW
Santos Castañeda, Ricardo Blanco, Miguel A González-Gay
Adult-onset Still's disease (AOSD) is a rare systemic inflammatory disorder mainly characterized by persistent high spiking fevers, evanescent rash, and joint involvement. The pathogenesis of AOSD is only partially known, but pro-inflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-1, IL-6, IL-18, and IFN-γ seem to play a major role in this disorder. AOSD is at the crossroad of auto-inflammatory syndromes and autoimmune diseases. It is diagnosed by exclusion to determine the presence of high serum ferritin levels, which is usually >1000 μg/L...
April 2016: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/27885817/serum-ferritin-level-is-a-prognostic-marker-in-patients-with-peripheral-t-cell-lymphoma
#16
S Koyama, S Fujisawa, R Watanabe, M Itabashi, D Ishibashi, Y Ishii, Y Hattori, Y Nakajima, K Motohashi, H Takasaki, R Kawasaki, C Hashimoto, E Yamazaki, H Koharazawa, S Takemura, N Tomita, R Sakai, S Motomura, H Nakajima
INTRODUCTION: The prognostic value of serum ferritin level in patients with peripheral T-cell lymphoma (PTCL) remains unknown. METHODS: We retrospectively analyzed clinical data from 78 consecutive patients with newly diagnosed PTCL that were treated with anthracycline-containing regimens between 1998 and 2011. RESULTS: The patients consisted of 50 males and 28 females with a median age of 64 years (range, 16-83 years). The subtypes of PTCL were 39 PTCL, not otherwise specified and 39 angioimmunoblastic T-cell lymphoma (AITL)...
November 24, 2016: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/27885765/conversion-of-native-24-mer-ferritin-nanocage-into-its-non-native-16-mer-analogue-by-insertion-of-extra-amino-acid-residues
#17
Shengli Zhang, Jiachen Zang, Wenming Wang, Hai Chen, Xiaorong Zhang, Fudi Wang, Hongfei Wang, Guanghua Zhao
Protein assemblies with high symmetry are widely distributed in nature. Most efforts so far have focused on repurposing these protein assemblies, a strategy that is ultimately limited by the structures available. To overcome this limitation, methods for fabricating novel self-assembling proteins have received intensive interest. Herein, by reengineering the key subunit interfaces of native 24-mer protein cage with octahedral symmetry through amino acid residues insertion, we fabricated a 16-mer lenticular nanocage whose structure is unique among all known protein cages...
November 25, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27883199/hepcidin-detects-iron-deficiency-in-sri-lankan-adolescents-with-a-high-burden-of-hemoglobinopathy-a-diagnostic-test-accuracy-study
#18
Katherine Wray, Angela Allen, Emma Evans, Chris Fisher, Anuja Premawardhena, Lakshman Perera, Rexan Rodrigo, Gayan Goonathilaka, Lebbe Ramees, Craig Webster, Andrew E Armitage, Andrew M Prentice, David J Weatherall, Hal Drakesmith, Sant-Rayn Pasricha
Anemia affects over 800 million women and children globally. Measurement of hepcidin as an index of iron status shows promise, but its diagnostic performance where hemoglobinopathies are prevalent is unclear. We evaluated the performance of hepcidin as a diagnostic test of iron deficiency in adolescents across Sri Lanka. We selected 2273 samples from a nationally representative cross-sectional study of 7526 secondary schoolchildren across Sri Lanka and analyzed associations between hepcidin and participant characteristics, iron indices, inflammatory markers and hemoglobinopathy states...
November 24, 2016: American Journal of Hematology
https://www.readbyqxmd.com/read/27881597/assessment-of-regression-models-for-adjustment-of-iron-status-biomarkers-for-inflammation-in-children-with-moderate-acute-malnutrition-in-burkina-faso
#19
Bernardette Cichon, Christian Ritz, Christian Fabiansen, Vibeke Brix Christensen, Suzanne Filteau, Henrik Friis, Pernille Kæstel
BACKGROUND: Biomarkers of iron status are affected by inflammation. In order to interpret them in individuals with inflammation, the use of correction factors (CFs) has been proposed. OBJECTIVE: The objective of this study was to investigate the use of regression models as an alternative to the CF approach. METHODS: Morbidity data were collected during clinical examinations with morbidity recalls in a cross-sectional study in children aged 6-23 mo with moderate acute malnutrition...
November 23, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27881596/combined-iron-deficiency-and-low-aerobic-fitness-doubly-burden-academic-performance-among-women-attending-university
#20
Samuel P Scott, Mary Jane De Souza, Karsten Koehler, Laura E Murray-Kolb
BACKGROUND: Academic success is a key determinant of future prospects for students. Cognitive functioning has been related to nutritional and physical factors. Here, we focus on iron status and aerobic fitness in young-adult female students given the high rate of iron deficiency and declines in fitness reported in this population. OBJECTIVES: We sought to explore the combined effects of iron status and fitness on academic success and to determine whether these associations are mediated by cognitive performance...
November 23, 2016: Journal of Nutrition
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