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Serum Iron

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1. Serum ferritin, soluble transferrin receptor, and total body iron for the detection of iron deficiency in early pregnancy: a multiethnic population-based study with low use of iron supplements. (PubMed)

Serum ferritin, soluble transferrin receptor, and total body iron for the detection of iron deficiency in early pregnancy: a multiethnic population-based study with low use of iron supplements. Which blood-based indicator best reflects the iron status in pregnant women is unclear. Better assessments of iron status in today's multiethnic populations are needed to optimize treatment and clinical recommendations.We aimed to determine the prevalence of anemia (hemoglobin <11.0 g/dL in first (...) and <10.5 g/dL in second trimester) and iron deficiency (ID) by the iron indicators serum ferritin <15 µg/L, serum soluble transferrin receptor (sTfR) >4.4 mg/L, and calculated total body iron <0 mg/kg, and their associations with ethnicity.This was a population-based cross-sectional study from primary antenatal care of 792 healthy women in early pregnancy in Oslo, Norway. We categorized the women into 6 ethnic groups: Western European, South Asian, Middle Eastern, Sub-Saharan African, East Asian

2019 American Journal of Clinical Nutrition

2. Determination of Non-Transferrin Bound Iron, Transferrin Bound Iron, Drug Bound Iron and Total Iron in Serum in a Rats after IV Administration of Sodium Ferric Gluconate Complex by Simple Ultrafiltration Inductively Coupled Plasma Mass Spectrometric Detec (PubMed)

Determination of Non-Transferrin Bound Iron, Transferrin Bound Iron, Drug Bound Iron and Total Iron in Serum in a Rats after IV Administration of Sodium Ferric Gluconate Complex by Simple Ultrafiltration Inductively Coupled Plasma Mass Spectrometric Detec A rapid, sensitive and specific ultrafiltration inductively-coupled plasma mass spectrometry (UF-ICP-MSICP-MS) method was developed and validated for the quantification of non-transferrin bound iron (NTBI), transferrin bound iron (TBI), drug (...) bound iron (DI) and total iron (TI) in the same rat serum sample after intravenous (IV) administration of iron gluconate nanoparticles in sucrose solution (Ferrlecit®). Ultrafiltration with a 30 kDa molecular cut-off filter was used for sample cleanup. Different elution solvents were used to separate each form of iron from sample serum. Isolated fractions were subjected to inductively-coupled mass spectrometric analysis after microwave digestion in 4% nitric acid. The reproducibility of the method

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2018 Nanomaterials

3. The opposing effects of acute inflammation and iron deficiency anemia on serum hepcidin and iron absorption in young women. (PubMed)

The opposing effects of acute inflammation and iron deficiency anemia on serum hepcidin and iron absorption in young women. Hepatic hepcidin synthesis is stimulated by inflammation but inhibited during iron deficiency anemia. In humans, the relative strength of these opposing signals on serum hepcidin and the net effect on iron absorption and systemic iron recycling is uncertain. In this prospective, 45-day study, in young women (n=46; age 18-49 y) with or without iron deficiency anemia, we (...) compared iron and inflammation markers, serum hepcidin and erythrocyte iron incorporation from 57Fe-labeled test meals, before and 8, 24 and 36 hours after influenza/DPT vaccination as an acute inflammatory stimulus. Compared to baseline, at 24-36 hours after vaccination: 1) interleukin-6 increased 2-3-fold in both groups (p<001); 2) serum hepcidin increased >2-fold in the non-anemic group (p<001), but did not significantly change in the iron-deficiency anemia group; 3) serum iron decreased in the non

2019 Haematologica

4. Effects of iron glycine chelate on laying performance, antioxidant activities, serum biochemical indices, iron concentrations and transferrin mRNA expression in laying hens. (PubMed)

Effects of iron glycine chelate on laying performance, antioxidant activities, serum biochemical indices, iron concentrations and transferrin mRNA expression in laying hens. This study was conducted to evaluate the effects of iron glycine chelate (Fe-Gly) on laying performance, antioxidant enzyme activities, serum biochemical indices and iron concentrations in laying hens. A total of 810 laying hens (Hy-Line Variety White, 26 weeks old) were randomly assigned to six groups with five replicates (...) Fe/kg) were promoted significantly (p < 0.01) compared with 0 mg Fe/kg group. The concentrations of Fe in serum, liver, kidney, spleen and ovary were increased significantly with the level dietary Fe-Gly raised where Fe-Gly groups (60, 80 mg Fe/kg) had observably higher Fe concentration than the control (p < 0.01) in serum, kidney and spleen. There was a trend that transferrin mRNA expression was decreased with the increase of Fe as Fe-Gly in diets, and compared with the control, the expression

2019 Journal of animal physiology and animal nutrition

5. Optimal Serum Ferritin Levels for Iron Deficiency Anemia during Oral Iron Therapy (OIT) in Japanese Hemodialysis Patients with Minor Inflammation and Benefit of Intravenous Iron Therapy for OIT-Nonresponders (PubMed)

Optimal Serum Ferritin Levels for Iron Deficiency Anemia during Oral Iron Therapy (OIT) in Japanese Hemodialysis Patients with Minor Inflammation and Benefit of Intravenous Iron Therapy for OIT-Nonresponders Background: We determined optimal serum ferritin for oral iron therapy (OIT) in hemodialysis (HD) patients with iron deficiency anemia (IDA)/minor inflammation, and benefit of intravenous iron therapy (IIT) for OIT-nonresponders. Methods: Inclusion criteria were IDA (Hb <120 g/L, serum (...) equation estimated optimal ferritin of 30-40 ng/mL using tHb (120-130 g/L). Seven OIT-nonresponders were IIT-responders. Conclusions: Optimal serum ferritin for OIT is 67.4-89.9 pmol/L in HD patients with IDA/minor inflammation. IIT may be a second line of treatment for OIT-nonreponders.

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2018 Nutrients

6. Limitations of Serum Ferritin in Diagnosing Iron Deficiency in Inflammatory Conditions (PubMed)

Limitations of Serum Ferritin in Diagnosing Iron Deficiency in Inflammatory Conditions Patients with inflammatory conditions such as inflammatory bowel disease (IBD), chronic heart failure (CHF), and chronic kidney disease (CKD) have high rates of iron deficiency with adverse clinical consequences. Under normal circumstances, serum ferritin levels are a sensitive marker for iron status but ferritin is an acute-phase reactant that becomes elevated in response to inflammation, complicating (...) the diagnosis. Proinflammatory cytokines also trigger an increase in hepcidin, which restricts uptake of dietary iron and promotes sequestration of iron by ferritin within storage sites. Patients with inflammatory conditions may thus have restricted availability of iron for erythropoiesis and other cell functions due to increased hepcidin expression, despite normal or high levels of serum ferritin. The standard threshold for iron deficiency (<30 μg/L) therefore does not apply and transferrin saturation

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2018 International journal of chronic diseases

7. Body iron status of children and adolescents with transfusion dependent β-thalassaemia: trends of serum ferritin and associations of optimal body iron control (PubMed)

Body iron status of children and adolescents with transfusion dependent β-thalassaemia: trends of serum ferritin and associations of optimal body iron control This cross sectional study aims to describe the body iron status, trends of serum ferritin and associations of optimal body iron control in patients aged below 16 years with transfusion dependent β-thalassaemia attending Paediatric and Adolescent Thalassaemia Centres of the Colombo North Teaching Hospital of Sri Lanka.Out of 54 children (...) , 51% were males and a majority were aged 11-16 years; 83% had β-thalassaemia major while 13% had HbE β-thalassaemia. Mean serum ferritin was 1778(± 1458) µg/l and 29% had optimal serum ferritin (below 1000 µg/l). Trend of mean serum ferritin over time showed gradual decline between 2011 and 2017 and longitudinal trend of individual patients at yearly intervals showed gradual rise until 5 years of age and plateauing thereafter. All except two patients were receiving iron chelator medication

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2018 BMC research notes

8. Iron, erythropoietin, and inflammation regulate hepcidin in Bmp2-deficient mice, but serum iron fails to induce hepcidin in Bmp6-deficient mice. (PubMed)

Iron, erythropoietin, and inflammation regulate hepcidin in Bmp2-deficient mice, but serum iron fails to induce hepcidin in Bmp6-deficient mice. The bone morphogenetic protein (BMP)-SMAD signaling pathway is a key transcriptional regulator of hepcidin in response to tissue iron stores, serum iron, erythropoietic drive and inflammation to increase the iron supply when needed for erythropoiesis, but to prevent the toxicity of iron excess. Recently, BMP2 was reported to play a non-redundant role (...) . Chronic dietary iron loading that increased liver iron induced BMP2 expression, whereas acute oral iron gavage that increased serum iron without influencing liver iron did not impact BMP2. However, hepcidin was still induced by both iron loading methods in Bmp2 CKO mice, although the degree of hepcidin induction was blunted relative to control mice. Conversely, acute oral iron gavage failed to induce hepcidin in Bmp6 -/- or CKO mice. Thus, BMP2 has at least a partially redundant role in hepcidin

2018 American journal of hematology

9. Jadenu® Substituting Exjade® in Iron Overloaded β-Thalassemia Major (BTM) Patients: A Preliminary Report of the Effects on the Tolerability, Serum Ferritin Level, Liver Iron Concentration and Biochemical Profiles (PubMed)

Jadenu® Substituting Exjade® in Iron Overloaded β-Thalassemia Major (BTM) Patients: A Preliminary Report of the Effects on the Tolerability, Serum Ferritin Level, Liver Iron Concentration and Biochemical Profiles Due to the chronic nature of chelation therapy and the adverse consequences of iron overload, patient adherence to therapy is an important issue. Jadenu ® is a new oral formulation of deferasirox (Exjade ®) tablets for oral suspension. While Exjade® is a dispersible tablet that must (...) be mixed in liquid and taken on an empty stomach, Jadenu ® can be taken in a single step, with or without a light meal, simplifying administration for the treatment of patients with chronic iron overload. This may significantly improve the compliance to treatment of patients with β-thalassemia major (BMT). The aim of this study was to evaluate the drug tolerability and the effects of chelation therapy on serum ferritin concentration, liver iron concentration (LIC) and biochemical profiles in patients

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2018 Mediterranean journal of hematology and infectious diseases

10. Maternal protein restriction depresses the duodenal expression of iron transporters and serum iron level in male weaning piglets. (PubMed)

Maternal protein restriction depresses the duodenal expression of iron transporters and serum iron level in male weaning piglets. To investigate the effects of maternal dietary protein restriction on offspring Fe metabolism, twenty-four second-parity Landrace×Yorkshire sows were randomly allocated to standard-protein (SP) and low-protein (LP) groups. The SP sows were fed diets containing 15 and 18 % crude protein throughout pregnancy and lactation, respectively, whereas the LP sows were (...) subjected to 50 % dietary protein restriction. Offspring birth weight was not affected, but the body weight at weaning (P=0·06) and average daily gain (P=0·01) of the female piglets were significantly decreased. Serum Fe level in the LP piglets was markedly decreased at weaning, especially in males (P=0·03). Serum ferritin level (P=0·08) tended to be lower, yet serum transferrin was greatly higher (P=0·01) in male weaning piglets of the LP group. Duodenal expression of the divalent metal transporter 1

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2017 The British journal of nutrition

11. Brain Iron Concentrations in Regions of Interest and Relation with Serum Iron Levels in Parkinson Disease (PubMed)

Brain Iron Concentrations in Regions of Interest and Relation with Serum Iron Levels in Parkinson Disease Brain iron has been previously found elevated in the substantia nigra pars compacta (SNpc), but not in other brain regions, of Parkinson's disease (PD) patients. However, iron in circulation has been recently observed to be lower than normal in PD patients. The regional selectivity of iron deposition in brain as well as the relationship between SNpc brain iron and serum iron within PD (...) patients has not been completely elucidated. In this pilot study we measured brain iron in six regions of interest (ROIs) as well as serum iron and serum ferritin, in 24 PD patients and 27 age- gender-matched controls. Brain iron was measured on magnetic resonance imaging (MRI) with a T2 prime (T2') method. Difference in brain iron deposition between PD cases and controls for the six ROIs were calculated. SNpc/white matter brain iron ratios and SNpc/serum iron ratios were calculated for each study

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2017 Journal of the neurological sciences

12. Vitamin D Supplementation Modestly Reduces Serum Iron Indices of Healthy Arab Adolescents. (PubMed)

Vitamin D Supplementation Modestly Reduces Serum Iron Indices of Healthy Arab Adolescents. Vitamin D deficiency has been shown to affect iron status via decreased calcitriol production, translating to decreased erythropoiesis. The present study aimed to determine for the first time whether vitamin D supplementation can affect iron levels among Arab adolescents. A total of 125 out of the initial 200 Saudi adolescents with vitamin D deficiency (serum 25(OH)D < 50 nmol/L) were selected from (...) the Vitamin D-School Project of King Saud University in Riyadh, Saudi Arabia. Cluster randomization was done in schools, and students received either vitamin D tablets (1000 IU/day) (N = 53, mean age 14.1 ± 1.0 years) or vitamin D-fortified milk (40IU/200mL) (N = 72, mean age 14.8 ± 1.4 years). Both groups received nutritional counseling. Anthropometrics, glucose, lipids, iron indices, and 25(OH)D were measured at baseline and after six months. Within group analysis showed that post-intervention, serum 25

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2019 Nutrients

13. Evaluating the association of serum ferritin and hepatic iron with disease severity in non-alcoholic fatty liver disease. (PubMed)

Evaluating the association of serum ferritin and hepatic iron with disease severity in non-alcoholic fatty liver disease. Hyperferritinemia, with or without increased hepatic iron, represents a common finding in non-alcoholic fatty liver disease (NAFLD). However, it is unclear whether it reflects hepatic inflammation or true iron-overload and, in case the latter is confirmed, whether this influences disease progression. We therefore explored the association between serum ferritin, degree (...) (25%) patients (38% predominantly in hepatocytes, 20% in reticuloendothelial cells and 42% in both). Subjects with stainable hepatic iron, particularly those with a mixed pattern, had higher serum ferritin and transaminases but only a mixed pattern of iron deposition was among the variables significantly associated with presence of NASH. Serum ferritin was not associated with presence of NASH, however it increased with worsening fibrosis stage (F3 compared to F0-F1), and significantly decreased

2019 Liver International

14. Regression Correction Equation to Adjust Serum Iron and Ferritin Concentrations Based on C-Reactive Protein and Albumin in Patients Receiving Primary and Secondary Care. (PubMed)

Regression Correction Equation to Adjust Serum Iron and Ferritin Concentrations Based on C-Reactive Protein and Albumin in Patients Receiving Primary and Secondary Care. Systemic inflammation, even at low levels, can greatly interfere with measures of iron status, making diagnosis of iron deficiency difficult. The objective of the present study was to create linear regression correction equations to adjust serum ferritin and iron concentrations based on measurements of the acute-phase proteins (...) C-reactive protein (CRP) and albumin.Data from a cohort (1) of patients (n = 7226) in primary and secondary care who had serum ferritin, iron, CRP, and albumin measured at the same time point were examined. Linear regression coefficients were calculated for CRP and albumin with serum iron and ferritin as the outcome variables. Patients with ferritin <15 µg/L or serum iron <10 µmol/L were categorized as iron deficient. The equation was then applied to a cohort (2) of patients with colorectal

2019 Journal of Nutrition

15. Daily iron supplementation for improving anaemia, iron status and health in menstruating women. (PubMed)

concentration, iron deficiency, iron-deficiency anaemia, all-cause mortality, adverse effects, and cognitive function) or secondary (iron status measured by iron indices, physical exercise performance, psychological health, adherence, anthropometric measures, serum/plasma zinc levels, vitamin A status, and red cell folate) outcomes.We used the standard methodological procedures of Cochrane.The search strategy identified 31,767 records; after screening, 90 full-text reports were assessed for eligibility. We (...) Daily iron supplementation for improving anaemia, iron status and health in menstruating women. Iron-deficiency anaemia is highly prevalent among non-pregnant women of reproductive age (menstruating women) worldwide, although the prevalence is highest in lower-income settings. Iron-deficiency anaemia has been associated with a range of adverse health outcomes, which restitution of iron stores using iron supplementation has been considered likely to resolve. Although there have been many trials

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2016 Cochrane

16. Low serum iron is associated with high serum intact FGF23 in elderly men: The Swedish MrOS study. (PubMed)

Low serum iron is associated with high serum intact FGF23 in elderly men: The Swedish MrOS study. Fibroblast growth factor (FGF23) is a protein that is produced by osteoblasts and osteocytes. Increased serum levels of FGF23 have been associated with increased risks of osteoporotic fractures and cardiovascular disease, particularly in participants with poor renal function. Serum iron (Fe) has been suggested as a regulator of FGF23 homeostasis.To determine whether Fe and iron status (...) are determinants of the levels of intact FGF23 (iFGF23) in elderly men.The MrOS study is a population-based study of elderly men (N=1010; mean age, 75.3years; range, 69-81years). The levels of Fe, transferrin saturation (TS), and ferritin were evaluated in relation to the serum concentrations of iFGF23 before and after adjustments for confounders.TS <15% was found in 3.5% (34/977) of the participants, who had a higher median level iFGF23 compared with the remaining subjects (47.4μmol/L vs. 41.9μmol/L, p=0.008

2017 Bone

17. Effect of Iron Status on Occurrence of Non-transferrin-bound Iron (NTBI) in Serum in Response to an Oral Iron Load

Effect of Iron Status on Occurrence of Non-transferrin-bound Iron (NTBI) in Serum in Response to an Oral Iron Load Effect of Iron Status on Occurrence of Non-transferrin-bound Iron (NTBI) in Serum in Response to an Oral Iron Load - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number (...) of saved studies (100). Please remove one or more studies before adding more. Effect of Iron Status on Occurrence of Non-transferrin-bound Iron (NTBI) in Serum in Response to an Oral Iron Load The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details. ClinicalTrials.gov Identifier: NCT02831712 Recruitment Status : Unknown Verified July 2016

2016 Clinical Trials

18. Can double fortification of salt with iron and iodine reduce anaemia, iron deficiency anaemia, iron deficiency, and iodine deficiency? Evidence of efficacy, effectiveness, and safety

Can double fortification of salt with iron and iodine reduce anaemia, iron deficiency anaemia, iron deficiency, and iodine deficiency? Evidence of efficacy, effectiveness, and safety Print | PDF PROSPERO This information has been provided by the named contact for this review. CRD has accepted this information in good faith and registered the review in PROSPERO. The registrant confirms that the information supplied for this submission is accurate and complete. CRD bears no responsibility (...) , method of induction of cardiac ischemia, duration of ischemia and duration of reperfusion (if applicable). ">Data to be extracted: animal model Example: Dose, timing of administration, frequency of administration, route of administration, vehicle. ">Data to be extracted: intervention of interest Example: Serum creatinine; continuous; umol/L (may be recalculated from mg/dL). ">Data to be extracted: primary outcome(s) Example: Blood urea nitrogen; continuous; mmol/L (may be recalculated from mg/dL

2019 PROSPERO

19. A Moderate Interleukin-6 Reduction, Not a Moderate Weight Reduction, Improves the Serum Iron Status in Diet-Induced Weight Loss with Fish Oil Supplementation. (PubMed)

A Moderate Interleukin-6 Reduction, Not a Moderate Weight Reduction, Improves the Serum Iron Status in Diet-Induced Weight Loss with Fish Oil Supplementation. Whether moderate weight loss or a reduction in IL-6 improves the serum iron status in overweight (OW) and obese adults supplemented with or without fish oil is explored.In total, 93 OW/obese Taiwanese adults with ≥2 metabolic components are randomized to a 12-week calorie-restricted diet with meal replacement alone (CRMR, n = 45 (...) ) or supplemented with fish oil (CRMRF, n = 48). Mean reductions in the %body weight and serum IL-6 are 7.5% versus 5.9% and 21% versus 35% for the CRMR and CRMRF groups, respectively. In the CRMRF group, a moderate loss of IL-6 (reduced ≥35%) also significantly improves the serum iron and transferrin saturation compared to those with loss of <35% in the mean serum IL-6 or those of the CRMR group who has a moderate loss of IL-6 (reduced ≥21%) (all p < 0.05). In contrast, modest weight loss does not improve

2018 Molecular nutrition & food research

20. Serum iron level and kidney function: a Mendelian randomization study. (PubMed)

Serum iron level and kidney function: a Mendelian randomization study. Iron depletion is a known consequence of chronic kidney disease (CKD), but there is contradicting epidemiological evidence on whether iron itself affects kidney function and whether its effect is protective or detrimental in the general population. While epidemiological studies tend to be affected by confounding and reverse causation, Mendelian randomization (MR) can provide unconfounded estimates of causal effects by using (...) genes as instruments.We performed an MR study of the effect of serum iron levels on estimated glomerular filtration rate (eGFR), using genetic variants known to be associated with iron. MR estimates of the effect of iron on eGFR were derived based on the association of each variant with iron and eGFR from two large genome-wide meta-analyses on 48 978 and 74 354 individuals. We performed a similar MR analysis for ferritin, which measures iron stored in the body, using variants associated

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2018 Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association

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