1
|
Bennett C, Pettikiriarachchi A, McLean ARD, Harding R, Blewitt ME, Seillet C, Pasricha SR. Serum iron and transferrin saturation variation are circadian regulated and linked to the harmonic circadian oscillations of erythropoiesis and hepatic Tfrc expression in mice. Am J Hematol 2024; 99:2075-2083. [PMID: 39152780 DOI: 10.1002/ajh.27447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 06/28/2024] [Accepted: 07/21/2024] [Indexed: 08/19/2024]
Abstract
Serum iron has long been thought to exhibit diurnal variation and is subsequently considered an unreliable biomarker of systemic iron status. Circadian regulation (endogenous ~24-h periodic oscillation of a biologic function) governs many critical physiologic processes. It is unknown whether serum iron levels are regulated by circadian machinery; likewise, the circadian nature of key players of iron homeostasis is unstudied. Here we show that serum iron, transferrin saturation (TSAT), hepatic transferrin receptor (TFR1) gene (Tfrc) expression, and erythropoietic activity exhibit circadian rhythms. Daily oscillations of serum iron, TSAT, hepatic Tfrc expression, and erythropoietic activity are maintained in mice housed in constant darkness, where oscillation reflects an endogenous circadian period. Oscillations of serum iron, TSAT, hepatic Tfrc, and erythropoietic activity were ablated when circadian machinery was disrupted in Bmal1 knockout mice. Interestingly, we find that circadian oscillations of erythropoietic activity and hepatic Tfrc expression are maintained in opposing phase, likely allowing for optimized usage and storage of serum iron whilst maintaining adequate serum levels and TSAT. This study provides the first confirmatory evidence that serum iron is circadian regulated, discerns circadian rhythms of TSAT, a widely used clinical marker of iron status, and uncovers liver-specific circadian regulation of TFR1, a major player in cellular iron uptake.
Collapse
Affiliation(s)
- Cavan Bennett
- Population Health and Immunity Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Anne Pettikiriarachchi
- Population Health and Immunity Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Alistair R D McLean
- Population Health and Immunity Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Rebecca Harding
- Population Health and Immunity Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Marnie E Blewitt
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
- Epigenetics and Development Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Cyril Seillet
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Sant-Rayn Pasricha
- Population Health and Immunity Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
- Diagnostic Haematology, The Royal Melbourne Hospital, Parkville, Victoria, Australia
- Clinical Haematology at the Peter MacCallum Cancer Centre and The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| |
Collapse
|
2
|
Lakhal-Littleton S, Cleland JGF. Iron deficiency and supplementation in heart failure. Nat Rev Cardiol 2024; 21:463-486. [PMID: 38326440 DOI: 10.1038/s41569-024-00988-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/08/2024] [Indexed: 02/09/2024]
Abstract
Non-anaemic iron deficiency (NAID) is a strategic target in cardiovascular medicine because of its association with a range of adverse effects in various conditions. Endeavours to tackle NAID in heart failure have yielded mixed results, exposing knowledge gaps in how best to define 'iron deficiency' and the handling of iron therapies by the body. To address these gaps, we harness the latest understanding of the mechanisms of iron homeostasis outside the erythron and integrate clinical and preclinical lines of evidence. The emerging picture is that current definitions of iron deficiency do not assimilate the multiple influences at play in patients with heart failure and, consequently, fail to identify those with a truly unmet need for iron. Additionally, current iron supplementation therapies benefit only certain patients with heart failure, reflecting differences in the nature of the unmet need for iron and the modifying effects of anaemia and inflammation on the handling of iron therapies by the body. Building on these insights, we identify untapped opportunities in the management of NAID, including the refinement of current approaches and the development of novel strategies. Lessons learned from NAID in cardiovascular disease could ultimately translate into benefits for patients with other chronic conditions such as chronic kidney disease, chronic obstructive pulmonary disease and cancer.
Collapse
Affiliation(s)
| | - John G F Cleland
- British Heart Foundation Centre of Research Excellence, School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| |
Collapse
|
3
|
Guo S, Li Z, Liu Y, Cheng Y, Jia D. Ferroptosis: a new target for hepatic ischemia-reperfusion injury? Free Radic Res 2024; 58:396-416. [PMID: 39068663 DOI: 10.1080/10715762.2024.2386075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 06/20/2024] [Accepted: 06/21/2024] [Indexed: 07/30/2024]
Abstract
Ischemia-reperfusion injury (IRI) can seriously affect graft survival and prognosis and is an unavoidable event during liver transplantation. Ferroptosis is a novel iron-dependent form of cell death characterized by iron accumulation and overwhelming lipid peroxidation; it differs morphologically, genetically, and biochemically from other well-known cell death types (autophagy, necrosis, and apoptosis). Accumulating evidence has shown that ferroptosis is involved in the pathogenesis of hepatic IRI, and targeting ferroptosis may be a promising therapeutic approach. Here, we review the pathways and phenomena involved in ferroptosis, explore the associations and implications of ferroptosis and hepatic IRI, and discuss possible strategies for modulating ferroptosis to alleviate the hepatic IRI.
Collapse
Affiliation(s)
- Shanshan Guo
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Zexin Li
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, China
| | - Yi Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, China
| | - Ying Cheng
- Department of Organ Transplantation, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Degong Jia
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, China
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| |
Collapse
|
4
|
Cleland JGF, Kalra PA, Pellicori P, Graham FJ, Foley PWX, Squire IB, Cowburn PJ, Seed A, Clark AL, Szwejkowski B, Banerjee P, Cooke J, Francis M, Clifford P, Wong A, Petrie C, McMurray JJV, Thomson EA, Wetherall K, Robertson M, Ford I, Kalra PR. Intravenous iron for heart failure, iron deficiency definitions, and clinical response: the IRONMAN trial. Eur Heart J 2024; 45:1410-1426. [PMID: 38446126 PMCID: PMC11032711 DOI: 10.1093/eurheartj/ehae086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 11/26/2023] [Accepted: 01/30/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND AND AIMS What is the relationship between blood tests for iron deficiency, including anaemia, and the response to intravenous iron in patients with heart failure? METHODS In the IRONMAN trial, 1137 patients with heart failure, ejection fraction ≤ 45%, and either serum ferritin < 100 µg/L or transferrin saturation (TSAT) < 20% were randomized to intravenous ferric derisomaltose (FDI) or usual care. Relationships were investigated between baseline anaemia severity, ferritin and TSAT, to changes in haemoglobin from baseline to 4 months, Minnesota Living with Heart Failure (MLwHF) score and 6-minute walk distance achieved at 4 months, and clinical events, including heart failure hospitalization (recurrent) or cardiovascular death. RESULTS The rise in haemoglobin after administering FDI, adjusted for usual care, was greater for lower baseline TSAT (Pinteraction < .0001) and ferritin (Pinteraction = .028) and more severe anaemia (Pinteraction = .014). MLwHF scores at 4 months were somewhat lower (better) with FDI for more anaemic patients (overall Pinteraction = .14; physical Pinteraction = .085; emotional Pinteraction = .043) but were not related to baseline TSAT or ferritin. Blood tests did not predict difference in achieved walking distance for those randomized to FDI compared to control. The absence of anaemia or a TSAT ≥ 20% was associated with lower event rates and little evidence of benefit from FDI. More severe anaemia or TSAT < 20%, especially when ferritin was ≥100 µg/L, was associated with higher event rates and greater absolute reductions in events with FDI, albeit not statistically significant. CONCLUSIONS This hypothesis-generating analysis suggests that anaemia or TSAT < 20% with ferritin > 100 µg/L might identify patients with heart failure who obtain greater benefit from intravenous iron. This interpretation requires confirmation.
Collapse
Affiliation(s)
- John G F Cleland
- School of Cardiovascular and Metabolic Health, University of Glasgow, 126 University Place, Glasgow, Lanarkshire, G12 8TA, UK
| | - Philip A Kalra
- Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust, Salford, UK
- The University of Manchester, Manchester, UK
| | - Pierpaolo Pellicori
- School of Cardiovascular and Metabolic Health, University of Glasgow, 126 University Place, Glasgow, Lanarkshire, G12 8TA, UK
| | - Fraser J Graham
- School of Cardiovascular and Metabolic Health, University of Glasgow, 126 University Place, Glasgow, Lanarkshire, G12 8TA, UK
| | - Paul W X Foley
- Great Western Hospitals NHS Foundation Trust, Swindon, UK
| | - Iain B Squire
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
| | - Peter J Cowburn
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Alison Seed
- Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, UK
| | | | | | | | - Justin Cooke
- Chesterfield Royal Hospital NHS Foundation Trust, Chesterfield, UK
| | | | | | - Aaron Wong
- Princess of Wales Hospital, Bridgend, UK
| | - Colin Petrie
- School of Cardiovascular and Metabolic Health, University of Glasgow, 126 University Place, Glasgow, Lanarkshire, G12 8TA, UK
- University Hospital Monklands, Airdrie, UK
| | - John J V McMurray
- School of Cardiovascular and Metabolic Health, University of Glasgow, 126 University Place, Glasgow, Lanarkshire, G12 8TA, UK
| | | | - Kirsty Wetherall
- Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Michele Robertson
- Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Ian Ford
- Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Paul R Kalra
- Department of Cardiology, Portsmouth Hospitals University NHS Trust, Portsmouth, UK
- Faculty of Science and Health, University of Portsmouth, Portsmouth, UK
- College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| |
Collapse
|
5
|
Huang Q, Tian H, Tian L, Zhao X, Li L, Zhang Y, Qiu Z, Lei S, Xia Z. Inhibiting Rev-erbα-mediated ferroptosis alleviates susceptibility to myocardial ischemia-reperfusion injury in type 2 diabetes. Free Radic Biol Med 2023; 209:135-150. [PMID: 37805047 DOI: 10.1016/j.freeradbiomed.2023.09.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/23/2023] [Accepted: 09/26/2023] [Indexed: 10/09/2023]
Abstract
The complex progression of type-2 diabetes (T2DM) may result in increased susceptibility to myocardial ischemia-reperfusion (IR) injury. IR injuries in multiple organs involves ferroptosis. Recently, the clock gene Rev-erbα has aroused considerable interest as a novel therapeutic target for metabolic and ischemic heart diseases. Herein, we investigated the roles of Rev-erbα and ferroptosis in myocardial IR injury during T2DM and its potential mechanisms. A T2DM model, myocardial IR and a tissue-specific Rev-erbα-/- mouse in vivo were established, and a high-fat high glucose environment with hypoxia-reoxygenation (HFHG/HR) in H9c2 were also performed. After myocardial IR, glycolipid profiles, creatine kinase-MB, AI, and the expression of Rev-erbα and ferroptosis-related proteins were increased in diabetic rats with impaired cardiac function compared to non-diabetic rats, regardless of the time at which IR was induced. The ferroptosis inhibitor ferrostatin-1 decreased AI in diabetic rats given IR and LPO levels in cells treated with HFHG/HR, as well as the expression of Rev-erbα and ACSL4. The ferroptosis inducer erastin increased AI and LPO levels and ACSL4 expression. Treatment with the circadian regulator nobiletin and genetically targeting Rev-erbα via siRNA or CRISPR/Cas9 technology both protected against severe myocardial injury and decreased Rev-erbα and ACSL4 expression, compared to the respective controls. Taken together, these data suggest that ferroptosis is involved in the susceptibility to myocardial IR injury during T2DM, and that targeting Rev-erbα could alleviate myocardial IR injury by inhibiting ferroptosis.
Collapse
Affiliation(s)
- Qin Huang
- Department of Anaesthesiology, Wuhan Univ, Renmin Hospital, Wuhan 430060, Hubei, PR China
| | - Hao Tian
- Department of Anaesthesiology, Wuhan Univ, Renmin Hospital, Wuhan 430060, Hubei, PR China
| | - Liqun Tian
- Department of Anaesthesiology, The First Affiliated Hospital of Chongqing Medical University, PR China
| | - Xiaoshuai Zhao
- Department of Anaesthesiology, Wuhan Univ, Renmin Hospital, Wuhan 430060, Hubei, PR China
| | - Lu Li
- Department of Anaesthesiology, Wuhan Univ, Renmin Hospital, Wuhan 430060, Hubei, PR China
| | - Yuxi Zhang
- Department of Anaesthesiology, Wuhan Univ, Renmin Hospital, Wuhan 430060, Hubei, PR China
| | - Zhen Qiu
- Department of Anaesthesiology, Wuhan Univ, Renmin Hospital, Wuhan 430060, Hubei, PR China
| | - Shaoqing Lei
- Department of Anaesthesiology, Wuhan Univ, Renmin Hospital, Wuhan 430060, Hubei, PR China
| | - Zhongyuan Xia
- Department of Anaesthesiology, Wuhan Univ, Renmin Hospital, Wuhan 430060, Hubei, PR China.
| |
Collapse
|
6
|
Fame RM, Kalugin PN, Petrova B, Xu H, Soden PA, Shipley FB, Dani N, Grant B, Pragana A, Head JP, Gupta S, Shannon ML, Chifamba FF, Hawks-Mayer H, Vernon A, Gao F, Zhang Y, Holtzman MJ, Heiman M, Andermann ML, Kanarek N, Lipton JO, Lehtinen MK. Defining diurnal fluctuations in mouse choroid plexus and CSF at high molecular, spatial, and temporal resolution. Nat Commun 2023; 14:3720. [PMID: 37349305 PMCID: PMC10287727 DOI: 10.1038/s41467-023-39326-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 06/07/2023] [Indexed: 06/24/2023] Open
Abstract
Transmission and secretion of signals via the choroid plexus (ChP) brain barrier can modulate brain states via regulation of cerebrospinal fluid (CSF) composition. Here, we developed a platform to analyze diurnal variations in male mouse ChP and CSF. Ribosome profiling of ChP epithelial cells revealed diurnal translatome differences in metabolic machinery, secreted proteins, and barrier components. Using ChP and CSF metabolomics and blood-CSF barrier analyses, we observed diurnal changes in metabolites and cellular junctions. We then focused on transthyretin (TTR), a diurnally regulated thyroid hormone chaperone secreted by the ChP. Diurnal variation in ChP TTR depended on Bmal1 clock gene expression. We achieved real-time tracking of CSF-TTR in awake TtrmNeonGreen mice via multi-day intracerebroventricular fiber photometry. Diurnal changes in ChP and CSF TTR levels correlated with CSF thyroid hormone levels. These datasets highlight an integrated platform for investigating diurnal control of brain states by the ChP and CSF.
Collapse
Affiliation(s)
- Ryann M Fame
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
- Department of Neurosurgery, Stanford University, Stanford, CA, 94305, USA
| | - Peter N Kalugin
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
- Graduate Program in Neuroscience, Harvard Medical School, Boston, MA, 02115, USA
- Harvard/MIT MD-PhD Program, Harvard Medical School, Boston, MA, 02115, USA
| | - Boryana Petrova
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Huixin Xu
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Paul A Soden
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Frederick B Shipley
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
- Graduate Program in Biophysics, Harvard University, Cambridge, MA, 02138, USA
| | - Neil Dani
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Bradford Grant
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Aja Pragana
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Joshua P Head
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Suhasini Gupta
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Morgan L Shannon
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Fortunate F Chifamba
- Department of Neurology and the F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, 02115, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, 02115, USA
| | - Hannah Hawks-Mayer
- Department of Neurology and the F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, 02115, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, 02115, USA
| | - Amanda Vernon
- Department of Brain and Cognitive Sciences, MIT, Cambridge, MA, USA
- Picower Institute for Learning and Memory, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Fan Gao
- Department of Brain and Cognitive Sciences, MIT, Cambridge, MA, USA
- Picower Institute for Learning and Memory, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Lyterian Therapeutics, South San Francisco, 94080, CA, USA
| | - Yong Zhang
- Pulmonary and Critical Care Medicine, Department of Medicine, Washington University, St. Louis, MO, 63110, USA
| | - Michael J Holtzman
- Pulmonary and Critical Care Medicine, Department of Medicine, Washington University, St. Louis, MO, 63110, USA
| | - Myriam Heiman
- Department of Brain and Cognitive Sciences, MIT, Cambridge, MA, USA
- Picower Institute for Learning and Memory, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Mark L Andermann
- Graduate Program in Neuroscience, Harvard Medical School, Boston, MA, 02115, USA
- Graduate Program in Biophysics, Harvard University, Cambridge, MA, 02138, USA
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, 02115, USA
| | - Naama Kanarek
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Jonathan O Lipton
- Department of Neurology and the F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, 02115, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, 02115, USA
| | - Maria K Lehtinen
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA.
- Graduate Program in Neuroscience, Harvard Medical School, Boston, MA, 02115, USA.
- Graduate Program in Biophysics, Harvard University, Cambridge, MA, 02138, USA.
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
| |
Collapse
|
7
|
Moore S. Lifestyle Strategies to Boost Total Body Iron. Am J Lifestyle Med 2022. [DOI: 10.1177/15598276221129218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Patients who switch to a whole food plant-based eating pattern (WFPBD) generally have an uneventful transition, but may present with dizziness and lightheadedness. Research demonstrates that anemia is no more common when transitioning to a WFPBD than in the normal population, but Iron deficiency is possible in the context of a transition to a whole food plant-based diet resulting in either microcytic or normocytic anemia. All six pillars of lifestyle medicine; diet, activity, sleep, stress, social engagement, and risky substances, can affect absorption of Iron and are discussed. This paper discusses how the use of lifestyle modifications can potentiate iron supplementation, or replace the need for it altogether, to reverse anemia.
Collapse
Affiliation(s)
- Scott Moore
- Medical Laboratory Sciences, Weber State University Dr Ezekiel R Dumke College of Health Professions, Ogden, UT, USA (SM)
| |
Collapse
|
8
|
OUP accepted manuscript. Lab Med 2022; 53:530-532. [DOI: 10.1093/labmed/lmac053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
9
|
Yoshimura C, Arima H, Amagase H, Takewaka M, Nakashima K, Imaoka C, Miyanaga N, Obama H, Fujita M, Ando SI. Idiopathic and secondary restless legs syndrome during pregnancy in Japan: Prevalence, clinical features and delivery-related outcomes. PLoS One 2021; 16:e0251298. [PMID: 33974646 PMCID: PMC8112660 DOI: 10.1371/journal.pone.0251298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 04/23/2021] [Indexed: 11/26/2022] Open
Abstract
Objective The aim of this study was to investigate prevalence of idiopathic and secondary restless legs syndrome (RLS) according to pregnancy trimester, and its effects on delivery-related outcomes among pregnant women in Japan. Methods This was a single-center, prospective observational study. One hundred eighty-two consecutive pregnant women participated in the study from June 2014 to March 2016. Participants were interviewed and examined in the second and third trimesters of pregnancy and 1 month after delivery. At each term, RLS was identified by a research assistant and then specialist in sleep medicine based on the diagnostic criteria of the International Restless Legs Syndrome Study Group. Delivery-related data was collected from medical charts. RLS was classified as idiopathic RLS, which originally existed before the index pregnancy, or secondary RLS, which newly appeared during the index pregnancy. Results The prevalence of RLS was 4.9% (idiopathic 3.3%, secondary 1.6%) in the second trimester, 5.0% (idiopathic 0.0%, secondary 5.0%) in the third trimester, and 0.6% (idiopathic 0.0%, secondary 0.6%) after delivery. Prolonged labor, emergency Cesarean section, and arrest of labor tended to be more frequent in idiopathic and/or second RLS (all p<0.05). Conclusions The prevalence of RLS during pregnancy was 4–5% and decreases after delivery in current Japan. The presence of RLS was associated with an increase in some delivery-related outcomes. Early detection and treatment of RLS during pregnancy may be beneficial to safe delivery for pregnant women.
Collapse
Affiliation(s)
- Chikara Yoshimura
- Department of Preventive Medicine and Public Health, Fukuoka University, Fukuoka, Japan
- Faculty of Medicine, Department of Respiratory Medicine, Fukuoka University, Fukuoka, Japan
- Sleep Apnea Center, Kyushu University Hospital, Fukuoka, Japan
- * E-mail:
| | - Hisatomi Arima
- Department of Preventive Medicine and Public Health, Fukuoka University, Fukuoka, Japan
| | | | | | | | | | | | | | - Masaki Fujita
- Faculty of Medicine, Department of Respiratory Medicine, Fukuoka University, Fukuoka, Japan
| | - Shin-ichi Ando
- Sleep Apnea Center, Kyushu University Hospital, Fukuoka, Japan
| |
Collapse
|
10
|
Dong Z, Li L, Zhang Y, Guo L, Wu X, Yin Y, Wan D. Effects of circadian iron administration on iron bioavailability and biological rhythm in pigs. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:2712-2717. [PMID: 33124038 DOI: 10.1002/jsfa.10897] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/15/2020] [Accepted: 10/30/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Iron supplements are limited by their poor absorption and low efficacy. A circadian feeding schedule would affect the circadian rhythm and improve nutrient metabolism. In this study, 18 iron-deficient piglets were randomly assigned to three groups: a control group receiving a constant diet with mid-iron (MI), a 'HL' group receiving a high-iron (HI) diet at 8:00 h and a low-iron (LI) diet at 18:00, and an 'LH' group receiving a LI diet at 8:00 and a HI diet at 18:00. The effects of circadian iron administration on iron absorption, iron status, and biological rhythm in iron-deficient piglets were investigated. RESULTS Serum iron and hemoglobin improved significantly (P < 0.05) but did not significantly differ in the circadian iron-feeding groups (P > 0.05). Iron concentration in the liver and spleen was significantly higher in the LH group than in the HL group (P < 0.05), and mRNA expression of divalent metal transport 1 (DMT1), cytochrome B (CYBRD1) and ferroportin (FPN) genes in the duodenum was significantly elevated in the LH group (P < 0.05). The clock-related genes showed differential expression in the duodenum, with greater mRNA expression for period (Per2) and cryptochrome (Cry1 and Cry2) in the LH group (P < 0.05). CONCLUSION Circadian iron administration affected iron absorption and iron storage in pigs. Iron supplementation in the evening might be a more effective pattern for iron utilization. The rhythmic system in the intestine, driven by the time, played an important role in this process. © 2020 Society of Chemical Industry.
Collapse
Affiliation(s)
- Zhenglin Dong
- Key Laboratory of Agro-Ecological Processess in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Hunan international joint laboratory of Animal Intestinal Ecology and Health, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Lan Li
- Key Laboratory of Agro-Ecological Processess in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Hunan international joint laboratory of Animal Intestinal Ecology and Health, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Yiming Zhang
- Key Laboratory of Agro-Ecological Processess in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Hunan international joint laboratory of Animal Intestinal Ecology and Health, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Liu Guo
- Key Laboratory of Agro-Ecological Processess in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
| | - Xin Wu
- Key Laboratory of Agro-Ecological Processess in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
| | - Yulong Yin
- Key Laboratory of Agro-Ecological Processess in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Hunan international joint laboratory of Animal Intestinal Ecology and Health, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Dan Wan
- Key Laboratory of Agro-Ecological Processess in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
| |
Collapse
|
11
|
Population-based reference intervals for ferritin, iron, transferrin and transferrin saturation and prevalence of iron deficiency in 6-12-year-old children: the Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Clinical and Laboratory Investigation 2021; 81:208-212. [PMID: 33607925 DOI: 10.1080/00365513.2021.1884893] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Appropriate reference intervals are important for correct interpretation of laboratory test results. The primary objective of the present study was to establish pediatric reference intervals for biochemical markers essential in the assessment of iron status. As a secondary objective we calculated the prevalence of iron deficiency according to WHO recommendations. Blood samples were obtained from 1355 healthy children 6-12 years of age participating in the Health Oriented Pedagogical Project (HOPP). For our primary objective, data from 1333 children were used to establish reference intervals for ferritin, iron, transferrin and transferrin saturation. Following the CLSI C28-A3 guidelines, the 2.5th and 97.5th percentiles with corresponding 90% confidence intervals, were estimated by the nonparametric method. None of the measured analytes required partitioning for age or sex. The prevalence of iron deficiency was 8.2%, which is higher than reported in other populations.
Collapse
|
12
|
|
13
|
Ferreira A, Neves P, Gozzelino R. Multilevel Impacts of Iron in the Brain: The Cross Talk between Neurophysiological Mechanisms, Cognition, and Social Behavior. Pharmaceuticals (Basel) 2019; 12:ph12030126. [PMID: 31470556 PMCID: PMC6789770 DOI: 10.3390/ph12030126] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 12/12/2022] Open
Abstract
Iron is a critical element for most organisms, which plays a fundamental role in the great majority of physiological processes. So much so, that disruption of iron homeostasis has severe multi-organ impacts with the brain being particularly sensitive to such modifications. More specifically, disruption of iron homeostasis in the brain can affect neurophysiological mechanisms, cognition, and social behavior, which eventually contributes to the development of a diverse set of neuro-pathologies. This article starts by exploring the mechanisms of iron action in the brain and follows with a discussion on cognitive and behavioral implications of iron deficiency and overload and how these are framed by the social context. Subsequently, we scrutinize the implications of the disruption of iron homeostasis for the onset and progression of psychosocial disorders. Lastly, we discuss the links between biological, psychological, and social dimensions and outline potential avenues of research. The study of these interactions could ultimately contribute to a broader understanding of how individuals think and act under physiological and pathophysiological conditions.
Collapse
Affiliation(s)
- Ana Ferreira
- Centro Interdisciplinar de Ciências Sociais (CICS.NOVA), Faculdade de Ciências Sociais e Humanas da Universidade NOVA de Lisboa (NOVA FCSH), 1069-061 Lisbon, Portugal
| | - Pedro Neves
- School of Business and Economics, NOVA University of Lisbon, 2775-405 Lisbon, Portugal
| | - Raffaella Gozzelino
- Chronic Diseases Research Center (CEDOC)/NOVA Medical School, Universidade NOVA de Lisboa, 1180-052, 1150-082 Lisbon, Portugal.
| |
Collapse
|
14
|
Grote Beverborg N, Klip IJT, Meijers WC, Voors AA, Vegter EL, van der Wal HH, Swinkels DW, van Pelt J, Mulder AB, Bulstra SK, Vellenga E, Mariani MA, de Boer RA, van Veldhuisen DJ, van der Meer P. Definition of Iron Deficiency Based on the Gold Standard of Bone Marrow Iron Staining in Heart Failure Patients. Circ Heart Fail 2019; 11:e004519. [PMID: 29382661 DOI: 10.1161/circheartfailure.117.004519] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 12/14/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND The most commonly used definition of iron deficiency (ID; ferritin <100 ng/mL or ferritin 100-300 ng/mL and transferrin saturation [TSAT] <20%) has not been validated in patients with heart failure (HF). We aimed to define and validate the biomarker-based definition of ID in HF, using bone marrow iron staining as the gold standard. Second, we aimed to assess the prognostic value of the optimized definition. METHODS AND RESULTS Bone marrow aspiration with iron staining was performed in 42 patients with HF and a reduced left ventricular ejection fraction (≤45%) undergoing median sternotomy for coronary artery bypass grafting. Patients were mostly male (76%) with mild-to-moderate HF and a mean age of 68±10 years. Bone marrow ID was found in 17 (40%) of the HF patients. The most commonly used definition of ID had a sensitivity of 82% and a specificity of 72%. A definition solely based on TSAT ≤19.8% or serum iron ≤13 µmol/L had a sensitivity of 94% and specificity of 84% and 88%, respectively (P<0.05 compared with the former definition). Subsequently, we assessed the incidence of all-cause mortality in 387 consecutive outpatient HF patients (left ventricular ejection fraction ≤45%). In these patients, TSAT ≤19.8% and serum iron ≤13 µmol/L, and not ferritin, were independently associated with mortality. CONCLUSIONS A TSAT ≤19.8% or a serum iron ≤13 µmol/L shows the best performance in selecting patients with ID and identifies HF patients at the highest risk of death. Our findings validate the currently used TSAT cutoff of <20% for the identification of ID in HF patients, but question the diagnostic value of ferritin.
Collapse
Affiliation(s)
- Niels Grote Beverborg
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - IJsbrand T Klip
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - Wouter C Meijers
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - Adriaan A Voors
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - Eline L Vegter
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - Haye H van der Wal
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - Dorine W Swinkels
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - Joost van Pelt
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - Andre B Mulder
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - Sjoerd K Bulstra
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - Edo Vellenga
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - Massimo A Mariani
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - Rudolf A de Boer
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - Dirk J van Veldhuisen
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.)
| | - Peter van der Meer
- From the Department of Cardiology (N.G.B., I.T.K., W.C.M., A.A.V., E.L.V., H.H.v.d.W., R.A.d.B., D.J.v.V., P.v.d.M.), Department of Laboratory Medicine (J.v.P.), Department of Hematology (A.B.M., E.V.), Department of Orthopedics (S.K.B.), and Department of Thoracic Surgery (M.A.M.), University Medical Center Groningen, University of Groningen, The Netherlands; and Department of Laboratory Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands (D.W.S.).
| |
Collapse
|
15
|
Abou El Hassan M, Delvin E, Elnenaei MO, Hoffman B. Diurnal rhythm in clinical chemistry: An underrated source of variation. Crit Rev Clin Lab Sci 2018. [DOI: 10.1080/10408363.2018.1519522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Mohamed Abou El Hassan
- Clinical Chemistry Division, Provincial Laboratory Services, Queen Elizabeth Hospital, Charlottetown, Canada
- Department of Pathology, Dalhousie University, Halifax, Canada
| | - Edgard Delvin
- CHU Ste-Justine Research Centre, Gastroenterology, Hepatology and Nutrition Division, Montreal, Canada
- Faculty of Medicine, Department of Biochemistry, University of Montreal, Montreal, Canada
| | - Manal O. Elnenaei
- Department of Pathology, Dalhousie University, Halifax, Canada
- Department of Pathology and Laboratory Medicine, Nova Scotia Health Authority (NSHA), Halifax, Canada
| | - Barry Hoffman
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| |
Collapse
|
16
|
Nguyen LT, Buse JD, Baskin L, Sadrzadeh SH, Naugler C. Influence of diurnal variation and fasting on serum iron concentrations in a community-based population. Clin Biochem 2017; 50:1237-1242. [DOI: 10.1016/j.clinbiochem.2017.09.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 09/15/2017] [Accepted: 09/21/2017] [Indexed: 11/28/2022]
|
17
|
Li L, Wan D, Long CM, Li GY, Zhang YM, Wu X, Yin YL. Effects of iron status on expression of circadian clock genes and serum lipid metabolism in sucking piglets. BIOL RHYTHM RES 2017. [DOI: 10.1080/09291016.2017.1410018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Lan Li
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Dan Wan
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha, China
- State Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang, China
| | - Ci-min Long
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha, China
| | - Guan-ya Li
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha, China
| | - Yi-ming Zhang
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha, China
- Animal Nutrition and Human Health Laboratory, School of Life Sciences, Hunan Normal University, Changsha, China
| | - Xin Wu
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha, China
- State Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang, China
| | - Yu-long Yin
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock & Poultry Sciences, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha, China
- State Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang, China
- Animal Nutrition and Human Health Laboratory, School of Life Sciences, Hunan Normal University, Changsha, China
| |
Collapse
|
18
|
Diurnal variations in iron concentrations and expression of genes involved in iron absorption and metabolism in pigs. Biochem Biophys Res Commun 2017; 490:1210-1214. [DOI: 10.1016/j.bbrc.2017.06.187] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 06/30/2017] [Indexed: 01/30/2023]
|
19
|
Del Vecchio L, Locatelli F. Clinical practice guidelines on iron therapy: A critical evaluation. Hemodial Int 2017; 21 Suppl 1:S125-S131. [PMID: 28436206 DOI: 10.1111/hdi.12562] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 03/17/2017] [Indexed: 12/14/2022]
Abstract
Anemia is common among patients with chronic kidney disease (CKD) and it is managed primarily with erythropoiesis-stimulating agents (ESA) and iron therapy. Following concerns around ESA therapy and economic constraints, IV iron is more and more administered worldwide. Several guidelines or position papers, which give indications on iron therapy in CKD patients, have been issued in Nephrology. Unfortunately, the field is characterized by a lack of evidence. As a result, the recommendations/suggestions are not uniform. There is general consensus to prescribe iron therapy to patients who are clearly iron deficient. In addition, iron therapy may increase Hb values, delay the start of ESA therapy in ESA-naïve patients and reduce ESA dose in ESA-treated patients. However, there is debate on the safety and efficacy of IV iron therapy when given in the presence of already high serum ferritin levels. In addition, not all the guidelines/position papers differentiate between non-dialysis/dialysis patients and between the presence/absence of ESA therapy. Many international Bodies or Societies suggest caution when administering IV iron during infections. A trial of oral iron should be considered as a first step, especially in the ND-CKD population. Finally, recommendations on the prevention of anaphylactic reactions following IV iron therapy are given by several bodies. There is consensus that IV iron is to be administered in the presence of resuscitative facilities (including medications) and personnel trained for emergencies.
Collapse
Affiliation(s)
- Lucia Del Vecchio
- Department of Nephrology and Dialysis, Alessandro Manzoni Hospital, Lecco, Italy
| | - Francesco Locatelli
- Department of Nephrology and Dialysis, Alessandro Manzoni Hospital, Lecco, Italy
| |
Collapse
|
20
|
Cho YW, Kang MS, Kim KT, Do SY, Lim JG, Lee SY, Motamedi GK. Quantitative sensory test for primary restless legs syndrome/Willis–Ekbom disease using the current perception threshold test. Sleep Med 2017; 30:19-23. [DOI: 10.1016/j.sleep.2016.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/02/2016] [Accepted: 03/01/2016] [Indexed: 10/22/2022]
|
21
|
Asthma as a disruption in iron homeostasis. Biometals 2016; 29:751-79. [PMID: 27595579 DOI: 10.1007/s10534-016-9948-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 07/07/2016] [Indexed: 12/28/2022]
Abstract
Over several decades, asthma has evolved from being recognized as a single disease to include a diverse group of phenotypes with dissimilar natural histories, pathophysiologies, responses to treatment, and distinctive molecular pathways. With the application of Occam's razor to asthma, it is proposed that there is one cause underlying the numerous phenotypes of this disease and that the responsible molecular pathway is a deficiency of iron in the lung tissues. This deficiency can be either absolute (e.g. asthma in the neonate and during both pregnancy and menstruation) or functional (e.g. asthma associated with infections, smoking, and obesity). Comparable associations between asthma co-morbidity (e.g. eczema, urticaria, restless leg syndrome, and pulmonary hypertension) with iron deficiency support such a shared mechanistic pathway. Therapies directed at asthma demonstrate a capacity to impact iron homeostasis, further strengthening the relationship. Finally, pathophysiologic events producing asthma, including inflammation, increases in Th2 cells, and muscle contraction, can correlate with iron availability. Recognition of a potential association between asthma and an absolute and/or functional iron deficiency suggests specific therapeutic interventions including inhaled iron.
Collapse
|
22
|
Novel loci affecting iron homeostasis and their effects in individuals at risk for hemochromatosis. Nat Commun 2014; 5:4926. [PMID: 25352340 PMCID: PMC4215164 DOI: 10.1038/ncomms5926] [Citation(s) in RCA: 192] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 08/06/2014] [Indexed: 12/13/2022] Open
Abstract
Variation in body iron is associated with or causes diseases, including anaemia and iron overload. Here, we analyse genetic association data on biochemical markers of iron status from 11 European-population studies, with replication in eight additional cohorts (total up to 48,972 subjects). We find 11 genome-wide-significant (P<5 × 10(-8)) loci, some including known iron-related genes (HFE, SLC40A1, TF, TFR2, TFRC, TMPRSS6) and others novel (ABO, ARNTL, FADS2, NAT2, TEX14). SNPs at ARNTL, TF, and TFR2 affect iron markers in HFE C282Y homozygotes at risk for hemochromatosis. There is substantial overlap between our iron loci and loci affecting erythrocyte and lipid phenotypes. These results will facilitate investigation of the roles of iron in disease.
Collapse
|
23
|
Cortese S, Angriman M, Lecendreux M, Konofal E. Iron and attention deficit/hyperactivity disorder: what is the empirical evidence so far? A systematic review of the literature. Expert Rev Neurother 2014; 12:1227-40. [DOI: 10.1586/ern.12.116] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
24
|
Ridefelt P, Hellberg D, Aldrimer M, Gustafsson J. Estimating reliable paediatric reference intervals in clinical chemistry and haematology. Acta Paediatr 2014; 103:10-5. [PMID: 24112315 DOI: 10.1111/apa.12438] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 08/23/2013] [Accepted: 09/26/2013] [Indexed: 11/29/2022]
Abstract
UNLABELLED Very few high-quality studies on paediatric reference intervals for general clinical chemistry and haematology analytes have been performed. Three recent prospective community-based projects utilising blood samples from healthy children in Sweden, Denmark and Canada have substantially improved the situation. CONCLUSION The present review summarises current reference interval studies for common clinical chemistry and haematology analyses.
Collapse
Affiliation(s)
- Peter Ridefelt
- Department of Medical Sciences, Clinical Chemistry; Uppsala University; Uppsala Sweden
| | - Dan Hellberg
- Department of Women's and Children's Health; Uppsala University; Uppsala Sweden
- Center for Clinical Research; Falun Sweden
| | - Mattias Aldrimer
- Department of Clinical Chemistry; County Hospital of Falun; Falun Sweden
| | - Jan Gustafsson
- Department of Women's and Children's Health; Uppsala University; Uppsala Sweden
| |
Collapse
|
25
|
Schaap CCM, Hendriks JCM, Kortman GAM, Klaver SM, Kroot JJC, Laarakkers CMM, Wiegerinck ET, Tjalsma H, Janssen MCH, Swinkels DW. Diurnal Rhythm rather than Dietary Iron Mediates Daily Hepcidin Variations. Clin Chem 2013; 59:527-35. [DOI: 10.1373/clinchem.2012.194977] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND
The iron-regulating hormone hepcidin is a promising biomarker in the diagnosis of iron disorders. Concentrations of hepcidin have been shown to increase during the day in individuals who are following a regular diet. It is currently unknown whether these increases are determined by an innate rhythm or by other factors. We aimed to assess the effect of dietary iron on hepcidin concentrations during the day.
METHODS
Within a 7-day interval, 32 volunteers received an iron-deficient diet on 1 day and the same diet supplemented with 65 mg ferrous fumarate at 0815 and 1145 on another day. Blood was drawn to assess ferritin, hepcidin-25, and transferrin saturation (TS) throughout both days at 4 time points between 0800 (fasted) and 1600. A linear mixed model for repeated data was used to analyze the effect of iron intake on TS and hepcidin concentrations.
RESULTS
Baseline values of hepcidin at 0800 correlated significantly with ferritin (r = 0.61). During the day of an iron-deficient diet the mean TS was similar both in men and in women, whereas hepcidin increased. During the day with iron supplementation the mean TS was significantly higher both in men and in women, and the mean hepcidin was moderately but significantly higher in women (1.0 nmol/L, 95% CI, 0.2–1.8) but not in men (0.0 nmol/L, 95% CI, −0.8 to 0.8).
CONCLUSIONS
Our data demonstrate that ferritin sets the basal hepcidin concentrations and suggest that innate diurnal rhythm rather than dietary iron mediates the daily hepcidin variations. These findings will be useful for optimizing sampling protocols and will facilitate the interpretation of hepcidin as an iron biomarker.
Collapse
Affiliation(s)
- Charlotte CM Schaap
- Laboratory of Genetic, Endocrine and Metabolic Diseases, Department of Laboratory Medicine
| | - Jan CM Hendriks
- Department of Epidemiology, Biostatistics & HTA, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Guus AM Kortman
- Laboratory of Genetic, Endocrine and Metabolic Diseases, Department of Laboratory Medicine
| | - Siem M Klaver
- Laboratory of Genetic, Endocrine and Metabolic Diseases, Department of Laboratory Medicine
- Hepcidinanalysis.com, Nijmegen, the Netherlands
| | - Joyce JC Kroot
- Laboratory of Genetic, Endocrine and Metabolic Diseases, Department of Laboratory Medicine
- Hepcidinanalysis.com, Nijmegen, the Netherlands
| | - Coby MM Laarakkers
- Laboratory of Genetic, Endocrine and Metabolic Diseases, Department of Laboratory Medicine
- Hepcidinanalysis.com, Nijmegen, the Netherlands
| | - Erwin T Wiegerinck
- Laboratory of Genetic, Endocrine and Metabolic Diseases, Department of Laboratory Medicine
- Hepcidinanalysis.com, Nijmegen, the Netherlands
| | - Harold Tjalsma
- Laboratory of Genetic, Endocrine and Metabolic Diseases, Department of Laboratory Medicine
- Hepcidinanalysis.com, Nijmegen, the Netherlands
| | - Mirian CH Janssen
- Department of General Internal Medicine, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Dorine W Swinkels
- Laboratory of Genetic, Endocrine and Metabolic Diseases, Department of Laboratory Medicine
- Hepcidinanalysis.com, Nijmegen, the Netherlands
| |
Collapse
|
26
|
Aldrimer M, Ridefelt P, Rödöö P, Niklasson F, Gustafsson J, Hellberg D. Population-based pediatric reference intervals for hematology, iron and transferrin. Scandinavian Journal of Clinical and Laboratory Investigation 2013; 73:253-61. [DOI: 10.3109/00365513.2013.769625] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
27
|
Sennels HP, Jørgensen HL, Hansen ALS, Goetze JP, Fahrenkrug J. Diurnal variation of hematology parameters in healthy young males: the Bispebjerg study of diurnal variations. Scandinavian Journal of Clinical and Laboratory Investigation 2012; 71:532-41. [PMID: 21988588 DOI: 10.3109/00365513.2011.602422] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE To evaluate the influence of time of day on the circulating concentrations of 21 hematology parameters. MATERIALS AND METHODS Venous blood samples were obtained under standardized circumstances from 24 healthy young men every third hour through 24 hours, nine time points in total. At each time point, the level of melatonin, iron, transferrin, transferrin saturation, ferritin, cobalamin, folate, red blood cells and white blood cells was measured. The data were analysed by rhythmometric statistical methods. The biological variations were calculated. RESULTS Significant oscillation of melatonin (p < 0.0001) with an amplitude (amp) of 19.84 pg/ml and a peak level at 03:34 h confirmed the normal 24-hour rhythms of the participants. Erythrocytes (p < 0.0001, amp = 0.15 × 10(12)/L), hemoglobin (p < 0.0001, amp = 0.29 mmol/L), hematocrit (p < 0.0001, amp = 0.01), iron (p < 0.0001, amp = 4.00μmol/L), transferrin (p = 0.03, amp = 1.41μmol/L), transferrin saturation (p < 0.0001, amp = 6.37%) and folate (p < 0.0001, amp = 1.55nmol/L) oscillated significantly, with gradually falling mean levels through the day to nadir around midnight. Leukocyte count (p < 0.0001, amp = 0.78 × 10(9)/L), neutrophils (p = 0.001, 0.31 × 10(9)/L), eosinophils (p < 0.0001, amp = 0.04 × 10(9)/L), monocytes (p = 0.0009, amp = 0.06 × 10(9)/L), lymphocytes (p < 0.0001, amp = 0.49 × 10(9)/L) oscillated significantly with gradually increasing mean levels through the day peaking at midnight. Iron, leukocytes and hemoglobin had the highest 24 hour oscillations in proportion to the reference intervals of the parameters for healthy young men. CONCLUSIONS Biochemical screenings are biased by diurnal variations, which must be considered when blood concentrations of these parameters are interpreted in the clinical setting.
Collapse
Affiliation(s)
- Henriette P Sennels
- Department of Clinical Biochemistry, Faculty of Health Sciences, Bispebjerg Hospital, Copenhagen, Denmark.
| | | | | | | | | |
Collapse
|