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Iron deficiency

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https://www.readbyqxmd.com/read/28636560/lipocalin-2-regulates-intestine-bacterial-survival-by-interplaying-with-siderophore-in-a-weaned-piglet-model-of-escherichia-coli-infection
#1
Bing-Xiu Guo, Qian-Qian Wang, Jia-Hui Li, Zhen-Shun Gan, Xiao-Feng Zhang, Yi-Zhen Wang, Hua-Hua Du
Iron is an essential nutrient that facilitates cell proliferation and growth, which plays a pivotal role in modulating the battle for survival between mammalian hosts and their pathogens. Pathogenic bacteria secrete siderophores to acquire iron from the host. However, lipocalin 2 (Lcn2), a siderophore-binding antimicrobial protein, binds to siderophores to prevent bacterial uptake of iron, which is critical for the control of systemic infection with Escherichia coli (E. coli). But few studies focus on the anti-infective response of Lcn2 in the intestines by inhibiting bacterial proliferation based on microbial iron metabolism...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28634546/low-hemoglobin-among-pregnant-women-in-midwives-practice-of-primary-health-care-jatinangor-indonesia-iron-deficiency-anemia-or-%C3%AE-thalassemia-trait
#2
Ari Indra Susanti, Edhyana Sahiratmadja, Gatot Winarno, Adhi Kristianto Sugianli, Herman Susanto, Ramdan Panigoro
Low hemoglobin (Hb) or anemia is common among pregnant women in developing countries which may cause adverse pregnancy outcomes and maternal deaths. Our study aimed to assess Hb level measured by midwives in primary health care facility at rural area of Jatinangor, Indonesia, and to explore whether the anemia was due to iron deficiency (IDA) or β-thalassemia trait (β-TT). Pregnant women (n = 105) had finger prick test for Hb level during a regular antenatal care examination from October to November 2016. Hb level by finger prick test was compared with venous blood, measured by complete blood count (CBC)...
2017: Anemia
https://www.readbyqxmd.com/read/28631167/copper-and-ectopic-expression-of-the-arabidopsis-transport-protein-copt1-alter-iron-homeostasis-in-rice-oryza-sativa-l
#3
Amparo Andrés-Bordería, Fernando Andrés, Antoni Garcia-Molina, Ana Perea-García, Concha Domingo, Sergi Puig, Lola Peñarrubia
Copper deficiency and excess differentially affect iron homeostasis in rice and overexpression of the Arabidopsis high-affinity copper transporter COPT1 slightly increases endogenous iron concentration in rice grains. Higher plants have developed sophisticated mechanisms to efficiently acquire and use micronutrients such as copper and iron. However, the molecular mechanisms underlying the interaction between both metals remain poorly understood. In the present work, we study the effects produced on iron homeostasis by a wide range of copper concentrations in the growth media and by altered copper transport in Oryza sativa plants...
June 19, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28628249/defining-a-temporal-order-of-genetic-requirements-for-development-of-mycobacterial-biofilms
#4
Yong Yang, Joseph Thomas, Yunlong Li, Catherine Vilchèze, Keith M Derbyshire, William R Jacobs, Anil K Ojha
Most mycobacterial species spontaneously form biofilms, inducing unique growth physiologies and reducing drug sensitivity. Biofilm growth progresses through three genetically programmed stages: substratum attachment, intercellular aggregation and architecture maturation. Growth of Mycobacterium smegmatis biofilms requires multiple factors including a chaperonin (GroEL1) and a nucleoid-associated protein (Lsr2), although how their activities are linked remains unclear. Here we show that Lsr2 participates in intercellular aggregation, but substratum attachment of Lsr2 mutants is unaffected, thereby genetically distinguishing these developmental stages...
June 19, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28626420/restless-legs-syndrome-from-pathophysiology-to-clinical-diagnosis-and-management
#5
REVIEW
Shiyi Guo, Jinsha Huang, Haiyang Jiang, Chao Han, Jie Li, Xiaoyun Xu, Guoxin Zhang, Zhicheng Lin, Nian Xiong, Tao Wang
Restless legs syndrome (RLS), a common neurological sensorimotor disorder in western countries, has gained more and more attention in Asian countries. The prevalence of RLS is higher in older people and females. RLS is most commonly related to iron deficiency, pregnancy and uremia. The RLS symptoms show a significant circadian rhythm and a close relationship to periodic limb movements (PLMs) in clinical observations, while the pathophysiological pathways are still unknown. The diagnostic criteria have been revised in 2012 to improve the validity of RLS diagnosis...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28626279/nutritional-status-of-foster-children-in-the-u-s-implications-for-cognitive-and-behavioral-development
#6
Ursula A Tooley, Zeina Makhoul, Philip A Fisher
OBJECTIVE: Children in foster care are at greater risk for poor health, physical, cognitive, behavioral, and developmental outcomes than are children in the general population. Considerable research links early nutrition to later cognitive and behavioral outcomes. The aim of this narrative review is to examine the prevalence of poor nutrition and its relation to subsequent health and development in foster children. METHOD: Relevant studies for inclusion were identified from numerous sources (e...
November 2016: Children and Youth Services Review
https://www.readbyqxmd.com/read/28625177/iron-deficiency-without-anaemia-is-a-potential-cause-of-fatigue-meta-analyses-of-randomised-controlled-trials-and-cross-sectional-studies
#7
Katsuhiko Yokoi, Aki Konomi
Fe deficiency is a prevalent nutritional disease, and fatigue is a common complaint in the general and patient population. The association between Fe deficiency without anaemia (IDNA) and fatigue is unclear. Here, we performed a meta-analysis to evaluate the therapeutic effect of Fe on fatigue in patients with IDNA and the association between IDNA and fatigue in the population. Articles from the PubMed database up to 19 January 2016 were systematically searched. A total of six relevant randomised controlled trials (RCT) and six relevant cross-sectional studies were identified...
June 19, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28623639/anemia-after-continuous-flow-left-ventricular-assist-device-implantation-characteristics-and-implications
#8
Javier Amione-Guerra, Ana S Cruz-Solbes, Arvind Bhimaraj, Barry H Trachtenberg, Sai R Pingali, Jerry D Estep, Myung H Park, Ashrith Guha
BACKGROUND: Anemia is common in patients with heart failure and is associated with adverse outcomes. Management of anemia in CF-LVAD patients is not well studied. Our purpose is to characterize and identify the etiology of anemia in CF-LVAD patients. Secondary objectives are to describe the effect of CF-LVAD on pre-existing anemia and assess its impact after CF-LVAD support. METHODS: Cross-sectional study from January to July 2015 of ambulatory patients supported with a CF-LVAD for at least 6-months that presented with hemoglobin <12 g/dL and no recent gastrointestinal bleeding...
June 14, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28623273/arabidopsis-transporter-abcg37-pdr9-contributes-primarily-highly-oxygenated-coumarins-to-root-exudation
#9
Jörg Ziegler, Stephan Schmidt, Nadine Strehmel, Dierk Scheel, Steffen Abel
The chemical composition of root exudates strongly impacts the interactions of plants with microorganisms in the rhizosphere and the efficiency of nutrient acquisition. Exudation of metabolites is in part mediated by ATP-binding cassette (ABC) transporters. In order to assess the contribution of individual ABC transporters to root exudation, we performed an LC-MS based non-targeted metabolite profiling of semi-polar metabolites accumulating in root exudates of Arabidopsis thaliana plants and mutants deficient in the expression of ABCG36 (PDR8/PEN3), ABCG37 (PDR9) or both transporters...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28622783/-biological-diagnosis-of-iron-deficiency-in-children
#10
I Thuret
Measurement of serum ferritin (SF) is currently the laboratory test recommended for diagnosing iron deficiency. In the absence of an associated disease, a low SF value is an early and highly specific indicator of iron deficiency. The WHO criteria proposed to define depleted storage iron are 12μg/L for children under 5 years and 15μg/L for those over 5 years. A higher threshold of 30μg/L is used in the presence of infection or inflammation. Iron deficiency anemia, with typical low mean corpuscular volume and mean corpuscular hemoglobin, is only present at the end stage of iron deficiency...
May 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28622782/-prevalence-of-iron-deficiency
#11
C Dupont
Studies of prévalence in iron deficiency separate iron depletion (defined as decreased blood ferritin) and iron deficiency anemia (defined as blood decrease in both ferritin and hemoglobin). In Europe, most studies are outdated. Prevalence of iron depletion varies from 7 to 18 % and 24 to 36% in toddlers and adolescents, respectively. Prevalence of iron deficiency anemia varies from 2 to 8.5% and 7 to 10% in toddlers and adolescents. In French speaking African countries, Demography Health Surveys show that 80% of children aged 0 to 2 years are anemic, severely for 5 to 9% of them...
May 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28622779/-iron-in-nutrition
#12
P Tounian, J-P Chouraqui
Iron deficiency is the main nutritional disease worldwide. The multidisciplinary working group of the French Pediatric Society on iron assessed the following recommendations. Since iron is variably absorbed depending on foods, the group defined absorbed iron requirements instead of dietary iron requirements. Iron-rich foods should be introduced at 4-months of age in some breast-fed infants. Between 7 and 11 month-old, formula-fed infants should drink at least 700ml per day of follow-on formula and partially or totally breast-fed infants should receive oral iron supplementation...
May 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28622778/-causes-of-iron-deficiency-in-children
#13
J-P Olives
Iron deficiency and iron deficiency anemia are common conditions worldwide affecting especially children. In developing countries, iron deficiency is caused by poor iron intake and parasitic infection. Poor iron intake linked to inadequate diets, low iron intestinal absorption, chronic blood losses and increased requirements are common causes in high-income countries.
May 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28622777/-iron-and-neurodevelopment
#14
L Vallée
In the central nervous system, iron is a cofactor of many metabolic processes and synthesis of aminergic neurotransmitters. Iron plays an major function on brain development from the prenatal period to teenage years. The blood-brain barrier modulates concentration of iron in the brain. In case of iron deficiency in the child, the negative impact on the myelinogenesis and synaptogenesis are well proven, with negative effects on psychomotor and cognitive functions. Iron supplementation has a beneficial effect, even if there is no anemia...
May 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28622776/-iron-and-susceptibility-to-infections
#15
L de Pontual
Iron is essential for proper functioning of the host immune system as well as an essential nutrient for growth of various pathogens. Iron deficiency increases infection susceptibility, specially those due to intracellular pathogens. At the opposite, excess iron stores could increase the virulence of some pathogens. Hepcidin synthesis is increased during the acute inflammation phase; leading to decreased iron intestinal absorption and retention of the metal within macrophages. This is considered to result from a defense mechanism of the child to limit the availability of iron for extracellular pathogens...
May 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28622775/-iron-deficiency-in-childhood-recommendations-of-the-french-pediatric-society
#16
EDITORIAL
P Tounian
No abstract text is available yet for this article.
May 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28622742/intravenous-ferumoxytol-in-pediatric-patients-with-iron-deficiency-anemia
#17
Nabil Hassan, Brian Boville, Diann Reischmann, Akunne Ndika, David Sterken, Karen Kovey
BACKGROUND: Iron deficiency anemia (IDA) is common in children. Limited data exist on the efficacy and safety of ferumoxytol in children. OBJECTIVE: To assess the efficacy of 10 mg/kg dose given over 15-60 minutes in correcting IDA and report any adverse drug reactions (ADRs). METHODS: We conducted a retrospective review of all patients who received ferumoxytol infusions for the management of IDA by the Pediatric Blood Management Program between October 2010 and March 2015...
July 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28622494/laryngeal-neuropathy-in-adult-goats-with-copper-deficiency
#18
R F A Sousa, V M Almeida, J E Neto, C W A Nascimento, G X Medeiros, R M T Medeiros, F Riet-Correa, F S Mendonça
The aim of this study was to elucidate the cause of a neurological syndrome characterized by stridor in adult goats with clinical signs of copper deficiency. The main clinical signs consisted of apathy, emaciation, pale mucous membranes, mucous nasal discharge, dyspnea, severe achromotrichia, diffuse alopecia, torpor, ataxia, and stridor. When the goats were forced to move, the stridor increased. In a herd of 194 Toggenburg goats, 10 adult goats with clinical signs of copper deficiency were removed from the herd and divided into 2 groups: group 1, which consisted of 4 nannies and 1 buck with stridor, and group 2, which consisted of 4 nannies and 1 buck without stridor...
July 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28621741/iron-deficiency-anemia-as-a-risk-factor-for-osteoporosis-in-taiwan-a-nationwide-population-based-study
#19
Mei-Lien Pan, Li-Ru Chen, Hsiao-Mei Tsao, Kuo-Hu Chen
The cause-effect relationship between iron deficiency anemia (IDA) and osteoporosis has not been established in the general population. Thus, the current longitudinal study determined the role of IDA as a risk factor for osteoporosis by analyzing a large nationwide population-based sample. In a sample of 1,000,000 randomly sampled individuals from the 1998-2012. Taiwan National Health Insurance Research Database, patients with IDA (case group (n = 35,751)) and individuals without IDA (control group (n = 178,755)) were compared...
June 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28620661/brutus-and-its-paralogs-bts-like1-and-bts-like2-encode-important-negative-regulators-of-the-iron-deficiency-response-in-arabidopsis-thaliana
#20
Maria N Hindt, Garo Z Akmakjian, Kara L Pivarski, Tracy Punshon, Ivan Baxter, David E Salt, Mary Lou Guerinot
Iron (Fe) is required for plant health, but it can also be toxic when present in excess. Therefore, Fe levels must be tightly controlled. The Arabidopsis thaliana E3 ligase BRUTUS (BTS) is involved in the negative regulation of the Fe deficiency response and we show here that the two A. thaliana BTS paralogs, BTS LIKE1 (BTSL1) and BTS LIKE2 (BTSL2) encode proteins that act redundantly as negative regulators of the Fe deficiency response. Loss of both of these E3 ligases enhances tolerance to Fe deficiency. We further generated a triple mutant with loss of both BTS paralogs and a partial loss of BTS expression that exhibits even greater tolerance to Fe-deficient conditions and increased Fe accumulation without any resulting Fe toxicity effects...
June 16, 2017: Metallomics: Integrated Biometal Science
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