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Iron deficiency

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https://www.readbyqxmd.com/read/28103409/zea-mays-fe-deficiency-related-4-zmfdr4-functions-as-an-iron-transporter-in-the-plastids-of-monocots
#1
Xiu-Yue Zhang, Xi Zhang, Qi Zhang, Xiao-Xi Pan, Luo-Chen Yan, Xiao-Juan Ma, Wei-Zhong Zhao, Xiao-Ting Qi, Li-Ping Yin
Iron (Fe)-homeostasis in the plastids is closely associated with Fe transport proteins that prevent Fe from occurring in its toxic free ionic forms. However, the number of known protein families related to Fe transport in the plastids (about 5) and the function of iron in non-green plastids is limited. In the present study, we report the functional characterization of Zea mays Fe deficiency-related 4 (ZmFDR4), which was isolated from a differentially expressed clone of a cDNA library of Fe deficiency-induced maize roots...
January 19, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28102495/pregnancy-after-roux-en-y-gastric-bypass-nutritional-and-biochemical-aspects
#2
Jessica Cristina Gimenes, Carolina Ferreira Nicoletti, Marcela Augusta de Souza Pinhel, Bruno Affonso Parenti de Oliveira, Wilson Salgado Júnior, Júlio Sérgio Marchini, Carla Barbosa Nonino
INTRODUCTION: Although pregnancy after bariatric surgery is related to risk reduction, nutritional complications may occur. This study aimed to evaluate nutritional and biochemical indicators of women who became pregnant after Roux en Y gastric bypass (RYGB). MATERIALS AND METHODS: We carried out a retrospective study with women who became pregnant after RYGB. We evaluated anthropometric, biochemical, and dietary intake indicators in the preoperative period and before, during, and after pregnancy by analysis of medical records...
January 19, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28101997/the-ecology-of-anemia-anemia-prevalence-and-correlated-factors-in-adult-indigenous-women-in-argentina
#3
Laura G Goetz, Claudia Valeggia
OBJECTIVES: The Toba/Qom of Namqom are an indigenous community native to the Gran Chaco region of northern Argentina. Historically seminomadic foragers, the diet of peri-urban community members has rapidly changed from high-protein, high-fiber to hypercaloric, processed. This study aims to understand the impact of this nutritional transition on aspects of women's health by exploring the relationship between prevalence of anemia and current diet composition, place of birth, and reproductive history...
January 19, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/28100507/efficacy-of-iron-supplement-bars-to-reduce-anemia-in-urban-indian-women-a-cluster-randomized-controlled-trial
#4
Rajvi Mehta, Alyssa C Platt, Xizi Sun, Mukesh Desai, Dennis Clements, Elizabeth L Turner
BACKGROUND: India's high prevalence of iron-deficiency anemia has largely been attributed to the local diet consisting of nonheme iron, which has lower absorption than that of heme iron. OBJECTIVE: We assessed the efficacy of the consumption of iron-supplement bars in raising hemoglobin concentrations and hematocrit percentages in anemic (hemoglobin concentration <12 g/dL) Indian women of reproductive age. DESIGN: The Let's be Well Red study was a 90-d, pair-matched, cluster-randomized controlled trial...
January 18, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28096133/regulation-of-the-iron-homeostatic-hormone-hepcidin
#5
REVIEW
Veena Sangkhae, Elizabeta Nemeth
Iron is required for many biological processes but is also toxic in excess; thus, body iron balance is maintained through sophisticated regulatory mechanisms. The lack of a regulated iron excretory mechanism means that body iron balance is controlled at the level of absorption from the diet. Iron absorption is regulated by the hepatic peptide hormone hepcidin. Hepcidin also controls iron release from cells that recycle or store iron, thus regulating plasma iron concentrations. Hepcidin exerts its effects through its receptor, the cellular iron exporter ferroportin...
January 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28096058/anemia-at-the-time-of-diagnosis-of-inflammatory-bowel-disease-prevalence-and-associated-factors-in-adolescent-and-adult-patients
#6
Alfredo J Lucendo, Ángel Arias, Óscar Roncero, Daniel Hervías, Cristina Verdejo, Carmen Naveas-Polo, Abdelmouneim Bouhmidi, Rufo Lorente, Luis Miguel Alcázar, Irina Salueña, Julio A García-Quiñones, María Jesús Carrillo-Ramos
BACKGROUND: The prevalence, characteristic and determinants of anemia, at the time of inflammatory bowel disease (IBD) diagnosis have yet to be fully elucidated. METHODS: Retrospective cross-sectional study. Analytical data and disease characteristics obtained upon diagnosis of 1278 IBD patients [Crohn's disease/ulcerative colitis (CD/UC): 718/560] were collected. RESULTS: Anemia was present in 41.2% of patients at diagnosis (47% and 33.8% of CD and UC patients, respectively; p<0...
December 14, 2016: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28095881/renal-function-in-patients-with-non-dialysis-chronic-kidney-disease-receiving-intravenous-ferric-carboxymaltose-an-analysis-of-the-randomized-find-ckd-trial
#7
Iain C Macdougall, Andreas H Bock, Fernando Carrera, Kai-Uwe Eckardt, Carlo Gaillard, David Van Wyck, Yvonne Meier, Sylvain Larroque, Simon D Roger
BACKGROUND: Preclinical studies demonstrate renal proximal tubular injury after administration of some intravenous iron preparations but clinical data on renal effects of intravenous iron are sparse. METHODS: FIND-CKD was a 56-week, randomized, open-label, multicenter study in which patients with non-dialysis dependent chronic kidney disease (ND-CKD), anemia and iron deficiency without erythropoiesis-stimulating agent therapy received intravenous ferric carboxymaltose (FCM), targeting either higher (400-600 μg/L) or lower (100-200 μg/L) ferritin values, or oral iron...
January 17, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28095847/the-biomedical-piglet-establishing-reference-intervals-for-haematology-and-clinical-chemistry-parameters-of-two-age-groups-with-and-without-iron-supplementation
#8
Domenico Ventrella, Francesco Dondi, Francesca Barone, Federica Serafini, Alberto Elmi, Massimo Giunti, Noemi Romagnoli, Monica Forni, Maria L Bacci
BACKGROUND: The similarities between swine and humans in physiological and genomic patterns, and the great correlation in size and anatomy, make pigs extremely useful in preclinical studies. New-born piglets can represent a model for congenital and genetic diseases in new-born children. It is known that piglets may have significant differences in clinicopathological results compared to adult pigs. Therefore, adult laboratory reference intervals cannot be applied to piglets. The aim of this study was to compare haematological and chemical variables in piglets of two ages and determinate age-related reference intervals for commercial hybrid young pigs...
January 17, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28095594/mixed-metal-tungsten-oxide-photoanode-materials-made-by-pulsed-laser-in-liquids-synthesis
#9
Carl M Blumenfeld, Marcus Lau, Harry B Gray, Astrid M Müller
Globally scalable sunlight-driven devices that convert solar energy into storable fuels will require efficient light absorbers that are made of non-precious elements. Suitable photoanode materials are yet to be discovered. Here we utilised the timesaving nature of pulsed-laser in liquids synthesis and prepared a series of neat and mixed-metal tungsten oxide photoanode materials to investigate the effect of ad-metals on optical and photocurrent generation properties. We obtained sub-μm-sized materials with different colours from W, Al, Ta, or first-row transition metal targets in water or aqueous ammonium metatungstate solutions...
January 17, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28093505/modelling-the-ferrochelatase-c-315-48c-modifier-mutation-for-erythropoietic-protoporphyria-epp-in-mice
#10
Jasmin Barman-Aksözen, Paulina Ćwiek, Vijay B Bansode, Frank Koentgen, Judith Trüb, Pawel Pelczar, Paolo Cinelli, Xiaoye Schneider-Yin, Daniel Schümperli, Elisabeth I Minder
Erythropoietic Protoporphyria (EPP) is caused by deficiency of ferrochelatase (FECH) which incorporates iron into protoporphyrin IX (PPIX) to form heme. Excitation of accumulated PPIX by light generates oxygen radicals which evoke excessive pain and, after longer light exposure, ulcerations in exposed skin areas of EPP patients. Moreover, ∼5% of the patients develop a liver dysfunction due to PPIX accumulation. Most patients (∼97%) have a severe FECH mutation (Mut) in trans to an intronic polymorphism (c...
January 12, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28092401/randomized-clinical-trial-of-preoperative-oral-versus-intravenous-iron-in-anaemic-patients-with-colorectal-cancer
#11
B D Keeler, J A Simpson, O Ng, H Padmanabhan, M J Brookes, A G Acheson
BACKGROUND: Treatment of preoperative anaemia is recommended as part of patient blood management, aiming to minimize perioperative allogeneic red blood cell transfusion. No clear evidence exists outlining which treatment modality should be used in patients with colorectal cancer. The study aimed to compare the efficacy of preoperative intravenous and oral iron in reducing blood transfusion use in anaemic patients undergoing elective colorectal cancer surgery. METHODS: Anaemic patients with non-metastatic colorectal adenocarcinoma were recruited at least 2 weeks before surgery and randomized to receive oral (ferrous sulphate) or intravenous (ferric carboxymaltose) iron...
January 16, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28092084/iron-availability-compromises-not-only-oligodendrocytes-but-also-astrocytes-and-microglial-cells
#12
Maria Victoria Rosato-Siri, Leandro Marziali, María Eugenia Guitart, Maria Elvira Badaracco, Mariana Puntel, Fernando Pitossi, Jorge Correale, Juana Maria Pasquini
When disrupted, iron homeostasis negatively impacts oligodendrocyte (OLG) differentiation and impairs myelination. To better understand myelin formation and OLG maturation, in vivo and in vitro studies were conducted to evaluate the effect of iron deficiency (ID) not only on OLG maturation but also on astrocytes (AST) and microglial cells (MG). In vivo experiments in an ID model were carried out to describe maturational events during OLG and AST development and the reactive profile of MG during myelination when iron availability is lower than normal...
January 14, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28090490/iron-deficiency-anemia-in-infants-and-toddlers
#13
Eun Young Joo, Keun Young Kim, Dong Hyun Kim, Ji-Eun Lee, Soon Ki Kim
BACKGROUND: In Korea, the prevalence of anemia and iron deficiency anemia (IDA) among older infants and young children remains high. To detect IDA early and to reduce its adverse impact, we assessed the characteristics of infants and young children who had IDA or were at risk of developing IDA, or who exhibited characteristics associated with severe anemia. METHODS: Among the 1,782 IDA-affected children aged 6 months to 18 years who visited the hospital, we retrospectively analyzed the medical records and laboratory data of 1,330 IDA-affected children aged 6-23 months who were diagnosed between 1996 and 2013...
December 2016: Blood Research
https://www.readbyqxmd.com/read/28090307/hemodynamic-response-to-treatment-of-iron-deficiency-anemia-in-pulmonary-arterial-hypertension-longitudinal-insights-from-an-implantable-hemodynamic-monitor
#14
Muddassir Mehmood, Richa Agarwal, Amresh Raina, Priscilla Correa-Jaque, Raymond L Benza
Despite new therapeutic options, pulmonary arterial hypertension (PAH) remains a progressive disease associated with substantial morbidity and mortality. As such, additional strategies for monitoring and adjunctive management of this disease are important. A 59-year-old woman with scleroderma-associated PAH received an implantable hemodynamic monitor (IHM) as part of a research protocol at our institution. Pulmonary artery pressures, heart rate, and cardiac output (sensor-based algorithm) were measured on a daily basis, and parameters of right ventricular (RV) performance and afterload were calculated...
December 2016: Pulmonary Circulation
https://www.readbyqxmd.com/read/28089715/ameliorating-effects-of-herbal-formula-hemomine-on-experimental-subacute-hemorrhagic-anemia-in-rats
#15
Sae Kwang Ku, Hyemee Kim, Joo Wan Kim, Ki Sung Kang, Hae-Jeung Lee
ETHNOPHARMACOLOGICAL RELEVANCE: Hemomine (HM) is an herbal mixture consisting of 5 varieties of the hematopoietic herbal extracts (Angelica gigas Nakai, Cnidium officinale Makino, Paeonia lactiflora Pall., Rehmannia glutinosa Liboschitz ex Stueudel, Glycyrrhiza uralensis Fischer). AIM OF THE STUDY: Anemia has been treated with iron supplements, whereas it could cause adverse side effects such as digestive discomfort. In the present study, HM was applied to SHA rats to test for several activities so as to verify its therapeutic potentials on anemia and digestive discomfort...
January 9, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28079179/transcriptome-and-network-analyses-in-saccharomyces-cerevisiae-reveal-that-amphotericin-b-and-lactoferrin-synergy-disrupt-metal-homeostasis-and-stress-response
#16
Chi Nam Ignatius Pang, Yu-Wen Lai, Leona T Campbell, Sharon C-A Chen, Dee A Carter, Marc R Wilkins
Invasive fungal infections are difficult to treat. The few available antifungal drugs have problems with toxicity or efficacy, and resistance is increasing. To overcome these challenges, existing therapies may be enhanced by synergistic combination with another agent. Previously, we found amphotericin B (AMB) and the iron chelator, lactoferrin (LF), were synergistic against a range of different fungal pathogens. This study investigates the mechanism of AMB-LF synergy, using RNA-seq and network analyses. AMB treatment resulted in increased expression of genes involved in iron homeostasis and ATP synthesis...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28077273/reevaluating-the-mechanism-of-excitation-energy-regulation-in-iron-starved-cyanobacteria
#17
Hui-Yuan S Chen, Michelle Liberton, Himadri B Pakrasi, Dariusz M Niedzwiedzki
This paper presents spectroscopic investigations of IsiA, a chlorophyll a-binding membrane protein produced by cyanobacteria grown in iron-deficient environments. IsiA, if associated with photosystem I, supports photosystem I in light harvesting by efficiently transferring excitation energy. However, if separated from photosystem I, IsiA exhibits considerable excitation quenching observed as a substantial reduction of protein-bound chlorophyll a fluorescence lifetime. Previous spectroscopic studies suggested that carotenoids are involved in excitation energy dissipation and in addition play a second role in this antenna complex by supporting chlorophyll a in light harvesting by absorbing in the spectral range inaccessible for chlorophyll a and transferring excitation to chlorophylls...
January 8, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28076655/fecal-total-iron-concentration-is-inversely-associated-with-fecal-lactobacillus-in-preschool-children
#18
Sasank Kalipatnapu, Sivaraman Kuppuswamy, Giriprasad Venugopal, Venkatesh Kaliaperumal, Balamurugan Ramadass
BACKGROUND: Iron deficiency is associated with stunting and poor performance in children. Oral iron supplementation is widely promoted to correct iron deficiency. However, excess iron may be toxic to beneficial luminal gut bacteria and could support growth of pathobionts. OBJECTIVE: To analyze the fecal total iron concentration and fecal Lactobacillus levels in a cohort of stunted and normal children. DESIGN: The study was undertaken in two different locations...
January 11, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28076396/neutrophil-interactions-stimulate-evasive-hyphal-branching-by-aspergillus-fumigatus
#19
Felix Ellett, Julianne Jorgensen, Galit H Frydman, Caroline N Jones, Daniel Irimia
Invasive aspergillosis (IA), primarily caused by Aspergillus fumigatus, is an opportunistic fungal infection predominantly affecting immunocompromised and neutropenic patients that is difficult to treat and results in high mortality. Investigations of neutrophil-hypha interaction in vitro and in animal models of IA are limited by lack of temporal and spatial control over interactions. This study presents a new approach for studying neutrophil-hypha interaction at single cell resolution over time, which revealed an evasive fungal behavior triggered by interaction with neutrophils: Interacting hyphae performed de novo tip formation to form new hyphal branches, allowing the fungi to avoid the interaction point and continue invasive growth...
January 11, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28074329/dietary-adequacy-of-egyptian-children-with-autism-spectrum-disorder-compared-to-healthy-developing-children
#20
Nagwa A Meguid, Mona Anwar, Geir Bjørklund, Adel Hashish, Salvatore Chirumbolo, Maha Hemimi, Eman Sultan
Although the etiology and pathology of autism spectrum disorder (ASD) is still poorly understood, a number of environmental, anthropological, neurobiological and genetic factors have been related to the pathophysiology of ASD, even the impact of oxidative stress response related to the environment and nutrition intake. Usual recommended dietary habits are based on the combination of behavioral and dietary or nutraceutical interventions together with pharmacotherapy. Investigations about a reliable relationship between diet and ASD are still lacking...
January 10, 2017: Metabolic Brain Disease
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