1
|
Varillas-Delgado D. Association of iron supplementation, HFE and AMPD1 polymorphisms and biochemical iron metabolism parameters in the performance of a men's World Tour cycling team: A pilot study. J Trace Elem Med Biol 2024; 84:127470. [PMID: 38744035 DOI: 10.1016/j.jtemb.2024.127470] [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: 03/21/2024] [Revised: 04/25/2024] [Accepted: 05/08/2024] [Indexed: 05/16/2024]
Abstract
BACKGROUND Nutritional strategies with iron supplementation have been shown to be effective in preventing the decline of blood biochemical parameters and sports performance. The aim of the study was to describe biochemical iron metabolism parameters in association with iron supplementation and HFE and AMPD1 polymorphisms in a Union Cycliste Internationale (UCI) World Tour cycling team to evaluate performance during a whole season METHODS: Twenty-eight professional men cyclists took part in this longitudinal observational pilot study. AMPD1 c.34 C>T (rs17602729) and HFE c.187 C>G (rs1799945) polymorphisms were genotyped using Single Nucleotide Primer Extension (SNPE). All the professional cyclists took oral iron supplementation throughout the season. Four complete blood analyses were carried out corresponding to UCI controls in January (1st), April (2nd), June (3rd) and October (4th). Data on participation in three-week Grand Tours, kms of competition and wins were analyzed. RESULTS In performance, especially in wins, there was a significant effect in HFE on biochemical hemoglobin (F = 4.255; p = 0.021) and biochemical hematocrit (F = 5.335; p = 0.009) and a hematocrit biochemical × genotype interaction (F = 3.418; p = 0.041), with higher values in professional cyclist with GC genotype. In AMPD1 there were significant effects in the biochemical iron x genotype interaction in three-week Grand Tours (F = 3.874; p = 0.029) and wins (F = 3.930; p = 0.028) CONCLUSIONS: Blood biochemical iron metabolism parameters could be related to performance in the season due to increasing hemoglobin and hematocrit concentration under iron supplementation, associated with winning in the professional cyclists with GC genotype of the HFE polymorphism.
Collapse
Affiliation(s)
- David Varillas-Delgado
- Universidad Francisco de Vitoria, Faculty of Health Sciences, Research Unit, Pozuelo de Alarcón, Madrid, Spain; SPORTNOMICS S.L., Madrid, Spain.
| |
Collapse
|
2
|
Li JH, Ma XY, Yi Y, Li LR, Xu ZY, Chang Y. Association between Serum Ferritin Levels and Metabolic-associated Fatty Liver Disease in Adults: a Cross-sectional Study Based on the NHANES. Curr Med Sci 2024; 44:494-502. [PMID: 38748368 DOI: 10.1007/s11596-024-2868-0] [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: 10/30/2023] [Accepted: 03/22/2024] [Indexed: 06/29/2024]
Abstract
OBJECTIVE Ferritin, initially acting as an iron-storage protein, was found to be associated with metabolic diseases. Our study was designed to investigate the association between serum ferritin and metabolic-associated fatty liver disease (MAFLD) using data from the National Health and Nutrition Examination Survey (NHANES) of the United State of America. METHODS A cross-sectional study was conducted, enrolling a total of 2145 participants from the NHANES in the 2017-2018 cycles. Hepatic steatosis and liver fibrosis were assessed by ultrasound images and several non-invasive indexes. Multiple regression analysis was conducted to determine the associations between serum ferritin concentration and MAFLD and liver fibrosis. RESULTS The analysis revealed that participants with higher serum ferritin levels (Q3 and Q4 groups) had a higher prevalence of MAFLD than those with the lowest serum ferritin levels [Q3 vs. Q1: OR=2.17 (1.33, 3.53), P<0.05 in fatty liver index (FLI); Q4 vs. Q1: OR=3.13 (1.91, 5.13), P<0.05 in FLI]. Additionally, participants with the highest serum ferritin levels (Q4 group) displayed a higher prevalence of liver fibrosis [Q4 vs. Q1: OR=2.59 (1.19, 5.62), P<0.05 in liver stiffness measurement; OR=5.06 (1.12, 22.94), P<0.05 in fibrosis-4 index], with significantly increased risk observed in participants with concomitant diabetes [OR=7.45 (1.55, 35.72), P=0.012]. CONCLUSION Our study revealed that elevated serum ferritin levels are associated with a higher prevalence of MAFLD and advanced liver fibrosis in patients. Elevated serum ferritin levels combined with diabetes are important risk factors for liver fibrosis.
Collapse
Affiliation(s)
- Jiang-Hui Li
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xue-Yao Ma
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Yun Yi
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Lu-Rao Li
- Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Diseases, Wuhan, 430071, China
| | - Zhi-Yong Xu
- Endoscopy Center, The People's Hospital of Yingshan, Huanggang, 438799, China.
| | - Ying Chang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
| |
Collapse
|
3
|
Benetti A, Bertozzi I, Ceolotto G, Cortella I, Regazzo D, Biagetti G, Cosi E, Randi ML. Coexistence of Multiple Gene Variants in Some Patients with Erythrocytoses. Mediterr J Hematol Infect Dis 2024; 16:e2024021. [PMID: 38468832 PMCID: PMC10927185 DOI: 10.4084/mjhid.2024.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 02/10/2024] [Indexed: 03/13/2024] Open
Abstract
Background Erythrocytosis is a relatively common condition; however, a large proportion of these patients (70%) remain without a clear etiologic explanation. Methods We set up a targeted NGS panel for patients with erythrocytosis, and 118 sporadic patients with idiopathic erythrocytosis were studied. Results In 40 (34%) patients, no variant was found, while in 78 (66%), we identified at least one germinal variant; 55 patients (70.5%) had 1 altered gene, 18 (23%) had 2 alterations, and 5 (6.4%) had 3. An altered HFE gene was observed in 51 cases (57.1%), EGLN1 in 18 (22.6%) and EPAS1, EPOR, JAK2, and TFR2 variants in 7.7%, 10.3%, 11.5%, and 14.1% patients, respectively. In 23 patients (19.45%), more than 1 putative variant was found in multiple genes. Conclusions Genetic variants in patients with erythrocytosis were detected in about 2/3 of our cohort. An NGS panel including more candidate genes should reduce the number of cases diagnosed as "idiopathic" erythrocytosis in which a cause cannot yet be identified. It is known that HFE variants are common in idiopathic erythrocytosis. TFR2 alterations support the existence of a relationship between genes involved in iron metabolism and impaired erythropoiesis. Some novel multiple variants were identified. Erythrocytosis appears to be often multigenic.
Collapse
Affiliation(s)
- Andrea Benetti
- First Medical Clinic, Department of Medicine – DIMED, University of Padova, Padova, Italy
| | - Irene Bertozzi
- First Medical Clinic, Department of Medicine – DIMED, University of Padova, Padova, Italy
| | - Giulio Ceolotto
- Emergency Medicine, Department of Medicine – DIMED, University of Padova, Padova, Italy
| | - Irene Cortella
- First Medical Clinic, Department of Medicine – DIMED, University of Padova, Padova, Italy
| | - Daniela Regazzo
- First Medical Clinic, Department of Medicine – DIMED, University of Padova, Padova, Italy
| | - Giacomo Biagetti
- First Medical Clinic, Department of Medicine – DIMED, University of Padova, Padova, Italy
| | - Elisabetta Cosi
- First Medical Clinic, Department of Medicine – DIMED, University of Padova, Padova, Italy
| | - Maria Luigia Randi
- First Medical Clinic, Department of Medicine – DIMED, University of Padova, Padova, Italy
| |
Collapse
|
4
|
Fan L, Xia Y, Wang Y, Han D, Liu Y, Li J, Fu J, Wang L, Gan Z, Liu B, Fu J, Zhu C, Wu Z, Zhao J, Han H, Wu H, He Y, Tang Y, Zhang Q, Wang Y, Zhang F, Zong X, Yin J, Zhou X, Yang X, Wang J, Yin Y, Ren W. Gut microbiota bridges dietary nutrients and host immunity. SCIENCE CHINA. LIFE SCIENCES 2023; 66:2466-2514. [PMID: 37286860 PMCID: PMC10247344 DOI: 10.1007/s11427-023-2346-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 04/05/2023] [Indexed: 06/09/2023]
Abstract
Dietary nutrients and the gut microbiota are increasingly recognized to cross-regulate and entrain each other, and thus affect host health and immune-mediated diseases. Here, we systematically review the current understanding linking dietary nutrients to gut microbiota-host immune interactions, emphasizing how this axis might influence host immunity in health and diseases. Of relevance, we highlight that the implications of gut microbiota-targeted dietary intervention could be harnessed in orchestrating a spectrum of immune-associated diseases.
Collapse
Affiliation(s)
- Lijuan Fan
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yaoyao Xia
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Youxia Wang
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Dandan Han
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Yanli Liu
- College of Animal Science and Technology, Northwest A&F University, Xi'an, 712100, China
| | - Jiahuan Li
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jie Fu
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Leli Wang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
| | - Zhending Gan
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Bingnan Liu
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Jian Fu
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Congrui Zhu
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Zhenhua Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jinbiao Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Hui Han
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Hao Wu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yiwen He
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Yulong Tang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
| | - Qingzhuo Zhang
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yibin Wang
- College of Animal Science and Technology, Northwest A&F University, Xi'an, 712100, China
| | - Fan Zhang
- College of Animal Science and Technology, Northwest A&F University, Xi'an, 712100, China
| | - Xin Zong
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China.
| | - Jie Yin
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, China.
| | - Xihong Zhou
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China.
| | - Xiaojun Yang
- College of Animal Science and Technology, Northwest A&F University, Xi'an, 712100, China.
| | - Junjun Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
| | - Yulong Yin
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China.
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, China.
| | - Wenkai Ren
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China.
| |
Collapse
|
5
|
Yuan W, Sun Z, Ji G, Hu H. Emerging roles of ferroptosis in male reproductive diseases. Cell Death Discov 2023; 9:358. [PMID: 37770442 PMCID: PMC10539319 DOI: 10.1038/s41420-023-01665-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 09/11/2023] [Accepted: 09/22/2023] [Indexed: 09/30/2023] Open
Abstract
Ferroptosis is a type of programmed cell death mediated by iron-dependent lipid peroxidation that leads to excessive lipid peroxidation in different cells. Ferroptosis is distinct from other forms of cell death and is associated with various diseases. Iron is essential for spermatogenesis and male reproductive function. Therefore, it is not surprising that new evidence supports the role of ferroptosis in testicular injury. Although the molecular mechanism by which ferroptosis induces disease is unknown, several genes and pathways associated with ferroptosis have been linked to testicular dysfunction. In this review, we discuss iron metabolism, ferroptosis, and related regulatory pathways. In addition, we analyze the endogenous and exogenous factors of ferroptosis in terms of iron metabolism and testicular dysfunction, as well as summarize the relationship between ferroptosis and male reproductive dysfunction. Finally, we discuss potential strategies to target ferroptosis for treating male reproductive diseases and provide new directions for preventing male reproductive diseases.
Collapse
Affiliation(s)
- Wenzheng Yuan
- Key Laboratory of Fertility Preservation, School of Life Sciences and Technologies, Sanquan College of Xinxiang Medical University, Xinxiang, 453003, Henan Province, PR China
- Institute of Life Sciences, China Medical University, Shenyang, 110122, Liaoning Province, PR China
| | - Zhibin Sun
- Key Laboratory of Fertility Preservation, School of Life Sciences and Technologies, Sanquan College of Xinxiang Medical University, Xinxiang, 453003, Henan Province, PR China
| | - Guojie Ji
- Key Laboratory of Fertility Preservation, School of Life Sciences and Technologies, Sanquan College of Xinxiang Medical University, Xinxiang, 453003, Henan Province, PR China.
| | - Huanhuan Hu
- Key Laboratory of Fertility Preservation, School of Life Sciences and Technologies, Sanquan College of Xinxiang Medical University, Xinxiang, 453003, Henan Province, PR China.
| |
Collapse
|
6
|
Ju H, Liu T, Yang M, Cheng M, Wu G. Iron and atrial fibrillation: A review. Pacing Clin Electrophysiol 2023; 46:312-318. [PMID: 36799332 DOI: 10.1111/pace.14678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 02/01/2023] [Accepted: 02/10/2023] [Indexed: 02/18/2023]
Abstract
Atrial fibrillation (AF), one of the most common arrhythmias in clinical practice, is classified into paroxysmal, persistent, and permanent AF according to its duration. The development of AF is associated with increased cardiovascular morbidity and mortality. However, the exact etiology of this disease remains poorly understood. Recent studies found disorders of iron metabolism might be involved in the progression of AF. Abnormal iron metabolism in cardiomyocytes provides arrhythmogenic substrates through a variety of mechanisms, including calcium mishandling, ion channel remodeling, and oxidative stress overaction. Interestingly, in AF patients with iron overload, interventions on iron metabolism, such as iron chelators and ferroptosis inhibitors, has been shown to prevent AF via reducing ferroptosis. Herein, we review the possible mechanisms, consequences, and therapeutic implications of altered atrial iron handling for AF pathophysiology.
Collapse
Affiliation(s)
- Hao Ju
- Department of Cardiology, Remin Hospital of Wuhan University, Wuhan, China
| | - Tao Liu
- Department of Cardiology, Remin Hospital of Wuhan University, Wuhan, China
| | - Manqi Yang
- Department of Cardiology, Remin Hospital of Wuhan University, Wuhan, China
| | - Mian Cheng
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Gang Wu
- Department of Cardiology, Remin Hospital of Wuhan University, Wuhan, China
| |
Collapse
|
7
|
Miazek K, Beton K, Śliwińska A, Brożek-Płuska B. The Effect of β-Carotene, Tocopherols and Ascorbic Acid as Anti-Oxidant Molecules on Human and Animal In Vitro/In Vivo Studies: A Review of Research Design and Analytical Techniques Used. Biomolecules 2022; 12:biom12081087. [PMID: 36008981 PMCID: PMC9406122 DOI: 10.3390/biom12081087] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/25/2022] [Accepted: 08/02/2022] [Indexed: 11/21/2022] Open
Abstract
Prolonged elevated oxidative stress (OS) possesses negative effect on cell structure and functioning, and is associated with the development of numerous disorders. Naturally occurred anti-oxidant compounds reduce the oxidative stress in living organisms. In this review, antioxidant properties of β-carotene, tocopherols and ascorbic acid are presented based on in vitro, in vivo and populational studies. Firstly, environmental factors contributing to the OS occurrence and intracellular sources of Reactive Oxygen Species (ROS) generation, as well as ROS-mediated cellular structure degradation, are introduced. Secondly, enzymatic and non-enzymatic mechanism of anti-oxidant defence against OS development, is presented. Furthermore, ROS-preventing mechanisms and effectiveness of β-carotene, tocopherols and ascorbic acid as anti-oxidants are summarized, based on studies where different ROS-generating (oxidizing) agents are used. Oxidative stress biomarkers, as indicators on OS level and prevention by anti-oxidant supplementation, are presented with a focus on the methods (spectrophotometric, fluorometric, chromatographic, immuno-enzymatic) of their detection. Finally, the application of Raman spectroscopy and imaging as a tool for monitoring the effect of anti-oxidant (β-carotene, ascorbic acid) on cell structure and metabolism, is proposed. Literature data gathered suggest that β-carotene, tocopherols and ascorbic acid possess potential to mitigate oxidative stress in various biological systems. Moreover, Raman spectroscopy and imaging can be a valuable technique to study the effect of oxidative stress and anti-oxidant molecules in cell studies.
Collapse
Affiliation(s)
- Krystian Miazek
- Laboratory of Laser Molecular Spectroscopy, Institute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland
- Correspondence:
| | - Karolina Beton
- Laboratory of Laser Molecular Spectroscopy, Institute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland
| | - Agnieszka Śliwińska
- Department of Nucleic Acid Biochemistry, Medical University of Lodz, 251 Pomorska Str., 92-213 Lodz, Poland
| | - Beata Brożek-Płuska
- Laboratory of Laser Molecular Spectroscopy, Institute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland
| |
Collapse
|
8
|
Sethi SK, Sharma S, Gharabaghi S, Reese D, Chen Y, Adams P, Jog MS, Haacke EM. Quantifying Brain Iron in Hereditary Hemochromatosis Using R2* and Susceptibility Mapping. AJNR Am J Neuroradiol 2022; 43:991-997. [PMID: 35798390 DOI: 10.3174/ajnr.a7560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/10/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Brain iron dyshomeostasis is increasingly recognized as an important contributor to neurodegeneration. Hereditary hemochromatosis is the most commonly inherited disorder of systemic iron overload. Although there is an increasing interest in excessive brain iron deposition, there is a paucity of evidence showing changes in brain iron exceeding that in healthy controls. Quantitative susceptibility mapping and R2* mapping are established MR imaging techniques that we used to noninvasively quantify brain iron in subjects with hereditary hemochromatosis. MATERIALS AND METHODS Fifty-two patients with hereditary hemochromatosis and 47 age- and sex-matched healthy controls were imaged using a multiecho gradient-echo sequence at 3T. Quantitative susceptibility mapping and R2* data were generated, and regions within the deep gray matter were manually segmented. Mean susceptibility and R2* relaxation rates were calculated for each region, and iron content was compared between the groups. RESULTS We noted elevated iron levels in patients with hereditary hemochromatosis compared with healthy controls using both R2* and QSM methods in the caudate nucleus, putamen, pulvinar thalamus, red nucleus, and dentate nucleus. Additionally, the substantia nigra showed increased susceptibility while the thalamus showed an increased R2* relaxation rate compared with healthy controls, respectively. CONCLUSIONS Both quantitative susceptibility mapping and R2* showed abnormal levels of brain iron in subjects with hereditary hemochromatosis compared with controls. Quantitative susceptibility mapping and R2* can be acquired in a single MR imaging sequence and are complementary in quantifying deep gray matter iron.
Collapse
Affiliation(s)
- S K Sethi
- From the Department of Radiology (S.K.S., E.M.H.), Wayne State University, Detroit, Michigan .,SpinTech MRI Inc (S.K.S., S.G., E.M.H.), Bingham Farms, Michigan
| | - S Sharma
- Department of Clinical Neurological Sciences (S.S., M.S.J.), London Health Sciences Centre
| | - S Gharabaghi
- SpinTech MRI Inc (S.K.S., S.G., E.M.H.), Bingham Farms, Michigan
| | - D Reese
- Imaging Research Laboratories (D.R.), Robarts Research Institute, London, Ontario, Canada
| | - Y Chen
- Department of Neurology (Y.C.), Wayne State University School of Medicine, Detroit, Michigan
| | - P Adams
- Division of Gastroenterology (P.A.), Department of Medicine, Western University, London, Ontario, Canada
| | - M S Jog
- Department of Clinical Neurological Sciences (S.S., M.S.J.), London Health Sciences Centre
| | - E M Haacke
- From the Department of Radiology (S.K.S., E.M.H.), Wayne State University, Detroit, Michigan.,SpinTech MRI Inc (S.K.S., S.G., E.M.H.), Bingham Farms, Michigan
| |
Collapse
|
9
|
Elnenaei MO, Thoni A, Eissa M. Reflex and Reflective Laboratory Interventions for Adding Value to Test Results; An Integral Part of Laboratory Stewardship. Clin Biochem 2022; 105-106:16-22. [DOI: 10.1016/j.clinbiochem.2022.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/06/2022] [Accepted: 03/16/2022] [Indexed: 12/11/2022]
|
10
|
Iglesias-Vázquez L, Arija V, Aranda N, Aglago EK, Cross AJ, Schulze MB, Quintana Pacheco D, Kühn T, Weiderpass E, Tumino R, Redondo-Sánchez D, de Magistris MS, Palli D, Ardanaz E, Laouali N, Sonestedt E, Drake I, Rizzolo L, Santiuste C, Sacerdote C, Quirós R, Amiano P, Agudo A, Jakszyn P. Factors associated with serum ferritin levels and iron excess: results from the EPIC-EurGast study. Eur J Nutr 2022; 61:101-114. [PMID: 34213605 DOI: 10.1007/s00394-021-02625-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 06/24/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE Excess iron is involved in the development of non-communicable diseases such as cancer, type 2 diabetes and cardiovascular conditions. We aimed to describe the prevalence of excess iron and its determinants in healthy European adults. METHODS Sociodemographic, lifestyle, iron status, dietary information, and HFE genotyping were obtained from controls from the nested case-control study EPIC-EurGast study. High sensitivity C-reactive protein (hsCRP) was measured to address possible systemic inflammation. Descriptive and multivariate analyses were used to assess iron status and its determinants. RESULTS Out of the 828 participants (median age: 58.7 years), 43% were females. Median serum ferritin and prevalence of excess iron were 143.7 µg/L and 35.2% in males, respectively, and 77 µg/L and 20% in females, both increasing with latitude across Europe. Prevalence of HFE C282Y mutation was significantly higher in Northern and Central Europe (~ 11%) than in the South (5%). Overweight/obesity, age, and daily alcohol and heme iron intake were independent determinants for iron status, with sex differences even after excluding participants with hsCRP > 5 mg/L. Obese males showed a greater consumption of alcohol, total and red meat, and heme iron, compared with those normal weight. CONCLUSION Obesity, higher alcohol and heme iron consumption were the main risk factors for excess iron in males while only age was associated with iron overload in females. Weight control and promoting healthy lifestyle may help prevent iron overload, especially in obese people. Further research is needed to clarify determinants of excess iron in the healthy adult population, helping to reduce the associated comorbidities.
Collapse
Affiliation(s)
- Lucía Iglesias-Vázquez
- Research group of Nutrition and Mental Health (NUTRISAM), Unit of Nutrition and Public Health, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili (URV), Tarragona, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
| | - Victoria Arija
- Research group of Nutrition and Mental Health (NUTRISAM), Unit of Nutrition and Public Health, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili (URV), Tarragona, Spain.
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain.
- Institut d'investigació en Atenció Primària (IDIAP) Jordi Gol, Institut Català de la Salut (ICS), Barcelona, Spain.
| | - Núria Aranda
- Research group of Nutrition and Mental Health (NUTRISAM), Unit of Nutrition and Public Health, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili (URV), Tarragona, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
| | - Elom K Aglago
- International Agency for Research on Cancer (IARC), Lyon, France
| | - Amanda J Cross
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany
| | | | - Tilman Kühn
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | | | - Rosario Tumino
- Cancer Registry and Histopathology Department, Provincial Health Authority (ASP 7) Ragusa, Ragusa, Italy
| | - Daniel Redondo-Sánchez
- Escuela Andaluza de Salud Pública (EASP), Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | | | - Domenico Palli
- Cancer Risk Factors and Life-Style Epidemiology Unit Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Villa delle Rose, Florence, Italy
| | - Eva Ardanaz
- Navarra Public Health Institute, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Nasser Laouali
- Paris-Saclay University, UVSQ, University Paris-Sud, Inserm, Gustave Roussy, "Exposome and Heredity" Team, CESP, 94805, Villejuif, France
| | - Emily Sonestedt
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Isabel Drake
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Lucía Rizzolo
- Unit of Nutrition and Cancer, Catalan Institute of Oncology - ICO, Nutrition and Cancer Group, Bellvitge Biomedical Research Institute -(IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Carmen Santiuste
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Murcia, Spain
| | - Carlotta Sacerdote
- Unit of Cancer Epidemiology, Città Della Salute e Della Scienza University-Hospital, Via Santena 7, 10126, Turin, Italy
| | - Ramón Quirós
- EPIC Asturias, Public Health Directorate, Asturias, Spain
| | - Pilar Amiano
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Public Health Division of Gipuzkoa, BioDonostia Research Institute, Donostia-San Sebastian, Spain
| | - Antonio Agudo
- Unit of Nutrition and Cancer, Catalan Institute of Oncology - ICO, Nutrition and Cancer Group, Bellvitge Biomedical Research Institute -(IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Paula Jakszyn
- Unit of Nutrition and Cancer, Catalan Institute of Oncology - ICO, Nutrition and Cancer Group, Bellvitge Biomedical Research Institute -(IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.
- Blanquerna School of Health Sciences, Ramon Llull University, Barcelona, Spain.
| |
Collapse
|
11
|
Papasavva M, Vikelis M, Katsarou MS, Siokas V, Dermitzakis E, Papademetriou C, Karakostis K, Lazopoulos G, Dardiotis E, Drakoulis N. Evidence That HFE H63D Variant Is a Potential Disease Modifier in Cluster Headache. J Mol Neurosci 2021; 72:393-400. [PMID: 34570359 PMCID: PMC8840935 DOI: 10.1007/s12031-021-01913-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 09/02/2021] [Indexed: 12/12/2022]
Abstract
Cluster headache (CH) is a primary headache disorder with a complex genetic background. Several studies indicate a potential link between iron homeostasis and the pathophysiology of primary headaches. The HFE gene encodes for a protein involved in iron metabolism, while genetic variants in HFE have been associated with hereditary hemochromatosis (HH), an iron overload disorder. The objective of the current study was to examine the association of the more common HFE H63D variant, with the susceptibility to develop CH and diverse clinical phenotypes in a population of Southeastern European Caucasian (SEC) origin. Genomic DNA samples from 128 CH patients and 294 neurologically healthy controls were genotyped for the HFE rs1799945 (H63D) variant. H63D genotypic and allelic frequency distribution did not differ significantly between patients and controls (p > 0.05). Subgroup analysis revealed a significantly more frequent occurrence of the variant G allele in chronic compared to episodic CH patients, indicative for a possible correlation of the HFE gene with the susceptibility for disease chronification. Although homozygosity for the less prevalent H63D variant G allele was minimal in the CH cohort, the results of the present study are in accordance with previous studies in CH and migraine patients, suggesting that HFE H63D variant modifies the disease clinical characteristics. Hence, despite the absence of a per se association with CH susceptibility in the current SEC cohort, variability in HFE gene may be potentially regarded as a disease modifier genetic factor in CH.
Collapse
Affiliation(s)
- Maria Papasavva
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771, Athens, Greece
| | | | - Martha-Spyridoula Katsarou
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771, Athens, Greece
| | - Vasileios Siokas
- Department of Neurology, Laboratory of Neurogenetics, University Hospital of Larissa, Greece, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | | | - Christoforos Papademetriou
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771, Athens, Greece
| | | | - George Lazopoulos
- Department of Cardiothoracic Surgery, University General Hospital of Heraklion, Medical School, University of Crete, 71003, Heraklion, Greece
| | - Efthimios Dardiotis
- Department of Neurology, Laboratory of Neurogenetics, University Hospital of Larissa, Greece, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Nikolaos Drakoulis
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771, Athens, Greece.
| |
Collapse
|
12
|
Petrillo S, Manco M, Altruda F, Fagoonee S, Tolosano E. Liver Sinusoidal Endothelial Cells at the Crossroad of Iron Overload and Liver Fibrosis. Antioxid Redox Signal 2021; 35:474-486. [PMID: 32689808 DOI: 10.1089/ars.2020.8168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Significance: Liver fibrosis results from different etiologies and represents one of the most serious health issues worldwide. Fibrosis is the outcome of chronic insults on the liver and is associated with several factors, including abnormal iron metabolism. Recent Advances: Multiple mechanisms underlying the profibrogenic role of iron have been proposed. The pivotal role of liver sinusoidal endothelial cells (LSECs) in iron-level regulation, as well as their morphological and molecular dedifferentiation occurring in liver fibrosis, has encouraged research on LSECs as prime regulators of very early fibrotic events. Importantly, normal differentiated LSECs may act as gatekeepers of fibrogenesis by maintaining the quiescence of hepatic stellate cells, while LSECs capillarization precedes the onset of liver fibrosis. Critical Issues: In the present review, the morphological and molecular alterations occurring in LSECs after liver injury are addressed in an attempt to highlight how vascular dysfunction promotes fibrogenesis. In particular, we discuss in depth how a vicious loop can be established in which iron dysregulation and LSEC dedifferentiation synergize to exacerbate and promote the progression of liver fibrosis. Future Directions: LSECs, due to their pivotal role in early liver fibrosis and iron homeostasis, show great promises as a therapeutic target. In particular, new strategies can be devised for restoring LSECs differentiation and thus their role as regulators of iron homeostasis, hence preventing the progression of liver fibrosis or, even better, promoting its regression. Antioxid. Redox Signal. 35, 474-486.
Collapse
Affiliation(s)
- Sara Petrillo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - Marta Manco
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - Fiorella Altruda
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - Sharmila Fagoonee
- Institute of Biostructure and Bioimaging, CNR c/o Molecular Biotechnology Center, Torino, Italy
| | - Emanuela Tolosano
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| |
Collapse
|
13
|
Ye D, Zhu Z, Huang H, Sun X, Liu B, Xu X, He Z, Li S, Wen C, Mao Y. Genetically Predicted Serum Iron Status Is Associated with Altered Risk of Systemic Lupus Erythematosus among European Populations. J Nutr 2021; 151:1473-1478. [PMID: 33693920 DOI: 10.1093/jn/nxab015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/09/2020] [Accepted: 01/15/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Observational epidemiological studies have reported an inconsistent relation between iron status and risk of systemic lupus erythematosus (SLE). Moreover, it remains uncertain whether the observed association is causal or due to confounding or reverse causality. OBJECTIVES We aimed to investigate the association between serum iron status and risk of SLE using a 2-sample Mendelian randomization (MR) approach. METHODS Genetic instruments for iron status including serum iron, log-transformed ferritin, transferrin saturation, and transferrin were identified from a large-scale genome-wide association study (GWAS) performed by the Genetics of Iron Status Consortium among 48,972 individuals of European ancestry (55% female). Three independent single nucleotide polymorphisms (rs1800562, rs1799945, and rs855791) concordantly related with 4 iron status biomarkers were selected as instrumental variables. Summary statistics of SLE were obtained from a publicly available GWAS of 4036 patients with SLE and 6959 controls of European descent. The MR study was conducted using the inverse-variance weighted (IVW) method, supplemented with MR-Egger regression and simple- and weighted-median methods. Leave-one-out analysis was further performed to test the robustness of our findings. ORs with 95% CIs were calculated. RESULTS Genetically predicted iron status was associated with altered risk of SLE, with ORs of 0.79 (95% CI: 0.66, 0.94), 0.54 (95% CI: 0.34, 0.85), 0.82 (95% CI: 0.71, 0.94), and 1.36 (95% CI: 1.06, 1.76) per 1-SD increase in iron, log-transformed ferritin, transferrin saturation, and transferrin using the IVW method, respectively. MR-Egger regression did not indicate potential pleiotropic bias. Sensitivity analyses produced similar findings, suggesting the robustness of the association. CONCLUSIONS Our study suggested that high iron status may be associated with a reduced risk of SLE among European populations. Further studies are warranted to elucidate the mechanism underlying the protective role of iron against susceptibility to SLE.
Collapse
Affiliation(s)
- Ding Ye
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Zhengyang Zhu
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Huijun Huang
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Xiaohui Sun
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Bin Liu
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Xia Xu
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Zhixing He
- Institute of Basic Research in Clinical Medicine, School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Songtao Li
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Chengping Wen
- Institute of Basic Research in Clinical Medicine, School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Yingying Mao
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| |
Collapse
|
14
|
Zakrocka I, Baranowicz-Gąszczyk I, Załuska W. Haemochromatosis in a kidney transplant recipient: a case report. BMC Nephrol 2021; 22:201. [PMID: 34051741 PMCID: PMC8164756 DOI: 10.1186/s12882-021-02416-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 05/24/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Iron overload is inevitably related to chronic kidney disease (CKD) treatment. Haemochromatosis leads to multiorgan damage and is associated with increased mortality. Primary haemochromatosis is the most common autosomal recessive disease in white populations. In most cases, the classic form of hereditary haemochromatosis is caused by mutations, mainly C282Y and H63D, in the haemochromatosis gene (HFE). Secondary haemochromatosis can be triggered by iron administration and blood transfusions. Haemochromatosis is rarely reported in kidney transplant recipients. Atypical factors may evoke haemochromatosis in patients without HFE mutations or other standard risk factors. CASE PRESENTATION In the current study, we present a patient who started to have haemochromatosis symptoms after kidney transplantation. A 37-year-old man after kidney transplantation from a deceased donor was admitted to the hospital due to high serum ferritin levels and impaired graft function. The patient's past medical history included arterial hypertension, embolization of both renal arteries and necrosis of the left femoral head. Glomerulonephritis was suspected as a cause of CKD; however, severe kidney failure was diagnosed, kidney biopsy was not performed, and the patient started intermittent haemodialysis. While on dialysis to treat anaemia, the patient had received erythropoietin and iron intravenously, and the maximal serum ferritin level was 2115 ng/ml. After kidney transplantation, ferritin levels started to increase rapidly, with a maximum level of 9468 ng/ml one and a half years after surgery. His genetic study showed HFE C282Y heterozygosity. Symptoms of haemochromatosis, such as skin hyperpigmentation, elevated activity of aminotransferases, impaired glucose tolerance and heart failure, were observed. Therapeutic phlebotomy was started, and 36 procedures were performed. After treatment, graft function significantly improved, most haemochromatosis symptoms resolved, and the serum ferritin level significantly decreased. CONCLUSIONS Haemochromatosis can occur in heterozygotic HFE patients after kidney transplantation. Iron administration, infections, type of immunosuppression and liver dysfunction should be considered potential triggers of haemochromatosis in this group of patients.
Collapse
Affiliation(s)
- Izabela Zakrocka
- Department of Nephrology, Medical University of Lublin, Jaczewskiego street 8, 20-090, Lublin, Poland.
| | - Iwona Baranowicz-Gąszczyk
- Department of Nephrology, Medical University of Lublin, Jaczewskiego street 8, 20-090, Lublin, Poland
| | - Wojciech Załuska
- Department of Nephrology, Medical University of Lublin, Jaczewskiego street 8, 20-090, Lublin, Poland
| |
Collapse
|
15
|
Corpas M, Megy K, Mistry V, Metastasio A, Lehmann E. Whole Genome Interpretation for a Family of Five. Front Genet 2021; 12:535123. [PMID: 33763108 PMCID: PMC7982663 DOI: 10.3389/fgene.2021.535123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 02/15/2021] [Indexed: 12/19/2022] Open
Abstract
Although best practices have emerged on how to analyse and interpret personal genomes, the utility of whole genome screening remains underdeveloped. A large amount of information can be gathered from various types of analyses via whole genome sequencing including pathogenicity screening, genetic risk scoring, fitness, nutrition, and pharmacogenomic analysis. We recognize different levels of confidence when assessing the validity of genetic markers and apply rigorous standards for evaluation of phenotype associations. We illustrate the application of this approach on a family of five. By applying analyses of whole genomes from different methodological perspectives, we are able to build a more comprehensive picture to assist decision making in preventative healthcare and well-being management. Our interpretation and reporting outputs provide input for a clinician to develop a healthcare plan for the individual, based on genetic and other healthcare data.
Collapse
Affiliation(s)
- Manuel Corpas
- Cambridge Precision Medicine Limited, ideaSpace, University of Cambridge Biomedical Innovation Hub, Cambridge, United Kingdom.,Institute of Continuing Education Madingley Hall Madingley, University of Cambridge, Cambridge, United Kingdom.,Facultad de Ciencias de la Salud, Universidad Internacional de La Rioja, Madrid, Spain
| | - Karyn Megy
- Cambridge Precision Medicine Limited, ideaSpace, University of Cambridge Biomedical Innovation Hub, Cambridge, United Kingdom.,Department of Haematology, University of Cambridge & National Health Service (NHS) Blood and Transplant, Cambridge, United Kingdom
| | | | - Antonio Metastasio
- Cambridge Precision Medicine Limited, ideaSpace, University of Cambridge Biomedical Innovation Hub, Cambridge, United Kingdom.,Camden and Islington NHS Foundation Trust, London, United Kingdom
| | - Edmund Lehmann
- Cambridge Precision Medicine Limited, ideaSpace, University of Cambridge Biomedical Innovation Hub, Cambridge, United Kingdom
| |
Collapse
|
16
|
Association of HFE Gene Mutations With Serum Ferritin Level and Heart and Liver Iron Overload in Patients With Transfusion-dependent Beta-Thalassemia. J Pediatr Hematol Oncol 2021; 43:e26-e28. [PMID: 32925401 DOI: 10.1097/mph.0000000000001944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVE This study was performed on patients with transfusion-dependent beta-thalassemia (TDT) to investigate the effect of HFE gene mutations of iron overload in a large group of patients with TDT major and its relationship with heart and liver T2* magnetic resonance imaging (MRI) level. MATERIALS AND METHODS In a cross-sectional study, a total of 253 patients with TDT who had regular blood transfusion were included in this study. HFE gene mutations including H63D and C282Y were evaluated in all patients through molecular assay. Heart and liver T2* MRI results, types, duration of iron therapy, and the demographic data including age, gender, serum ferritin level, blood transfusion, and splenectomy history of the included participants were also collected, using a questionnaire. RESULTS Homozygous and heterozygous H63D mutation was found in 39.5% of the patients and C282Y mutation was found only in 1 patient. Ferritin level was significantly higher in patients with H63D mutation in comparison with patients without this mutation (P=0.036). Although heart T2* MRI and also the liver T2* MRI in the patients with H63D was slightly higher, the difference was not statistically significant. No significant correlation was observed between serum ferritin level and heart and liver T2* MRI, and iron chelation regimen. DISCUSSION Heart and liver iron overload was not significantly different between patients with and without H63D mutation. As for serum ferritin, it was significantly higher among patients with H63D mutation compared with patients without this mutation. Hence, it is recommended to consider HFE gene mutations among patients with thalassemia to reach a better iron overload evaluation and management.
Collapse
|
17
|
Martins Conde P, Sauter T, Nguyen TP. An efficient machine learning-based approach for screening individuals at risk of hereditary haemochromatosis. Sci Rep 2020; 10:20613. [PMID: 33244054 PMCID: PMC7691515 DOI: 10.1038/s41598-020-77367-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 11/02/2020] [Indexed: 11/22/2022] Open
Abstract
Hereditary haemochromatosis (HH) is an autosomal recessive disease, where HFE C282Y homozygosity accounts for 80–85% of clinical cases among the Caucasian population. HH is characterised by the accumulation of iron, which, if untreated, can lead to the development of liver cirrhosis and liver cancer. Since iron overload is preventable and treatable if diagnosed early, high-risk individuals can be identified through effective screening employing artificial intelligence-based approaches. However, such tools expose novel challenges associated with the handling and integration of large heterogeneous datasets. We have developed an efficient computational model to screen individuals for HH using the family study data of the Hemochromatosis and Iron Overload Screening (HEIRS) cohort. This dataset, consisting of 254 cases and 701 controls, contains variables extracted from questionnaires and laboratory blood tests. The final model was trained on an extreme gradient boosting classifier using the most relevant risk factors: HFE C282Y homozygosity, age, mean corpuscular volume, iron level, serum ferritin level, transferrin saturation, and unsaturated iron-binding capacity. Hyperparameter optimisation was carried out with multiple runs, resulting in 0.94 ± 0.02 area under the receiving operating characteristic curve (AUCROC) for tenfold stratified cross-validation, demonstrating its outperformance when compared to the iron overload screening (IRON) tool.
Collapse
|
18
|
Leukocyte telomere length is associated with iron overload in male adults with hereditary hemochromatosis. Biosci Rep 2020; 40:226596. [PMID: 33026063 PMCID: PMC7584811 DOI: 10.1042/bsr20201916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/12/2020] [Accepted: 09/11/2020] [Indexed: 11/17/2022] Open
Abstract
Background: Hereditary hemochromatosis (HH) is a primary iron overload (IO) condition. Absolute telomere length (ATL) is a marker of cellular aging and DNA damage associated with chronic diseases and mortality. Aim: To evaluate the relationship between ATL and IO in patients with HH. Methods: Cross-sectional study including 25 patients with HH: 8 with IO and 17 without IO (ferritin < 300 ng/ml) and 25 healthy controls. Inclusion criteria were: age > 18 years, male sex and HH diagnosis. Patients with diabetes or other endocrine and autoimmune diseases were excluded. ATL was measured by real-time PCR. Results: HH patients with IO were older (P<0.001) and showed higher ferritin concentration (P<0.001). Patients with HH, disregarding the iron status, showed higher glucose and body mass index (BMI) than controls (both P<0.01). ATL was shorter in patients with IO than controls [with IO: 8 (6–14), without IO: 13 (9–20), and controls: 19 (15–25) kilobase pairs, P<0.01]; with a linear trend within groups (P for trend <0.01). Differences in ATL remained statistically significant after adjusting by age, BMI and glucose (P<0.05). Discussion: Patients with IO featured shorter ATL while patients without IO showed only mild alterations vs. controls. Screening for IO is encouraged to prevent iron-associated cellular damage and early telomere attrition.
Collapse
|
19
|
Varillas Delgado D, Tellería Orriols JJ, Monge Martín D, Del Coso J. Genotype scores in energy and iron-metabolising genes are higher in elite endurance athletes than in nonathlete controls. Appl Physiol Nutr Metab 2020; 45:1225-1231. [PMID: 32379996 DOI: 10.1139/apnm-2020-0174] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Information about the association of energy and iron-metabolising genes with endurance performance is scarce. The objective of this investigation was to compare the frequencies of polymorphic variations of genes involved in energy generation and iron metabolism in elite endurance athletes versus nonathlete controls. Genotype frequencies in 123 male elite endurance athletes (75 professional road cyclists and 48 elite endurance runners) and 122 male nonathlete participants were compared by assessing 4 genetic polymorphisms: AMPD1 c.34C/T (rs17602729), PPARGC1A c.1444G/A (rs8192678) HFEH63D c.187C/G (rs1799945) and HFEC282Y c.845G/A (rs1800562). A weighted genotype score (w-TGS; from 0 to 100 arbitrary units (a.u.)) was calculated by assigning a corresponding weight to each polymorphism. In the nonathlete population, the mean w-TGS value was lower (39.962 ± 14.654 a.u.) than in the group of elite endurance athletes (53.344 ± 17.053 a.u). The binary logistic regression analysis showed that participants with a w-TGS > 38.975 a.u had an odds ratio of 1.481 (95% confidence interval: 1.244-1.762; p < 0.001) for achieving elite athlete status. The genotypic distribution of polymorphic variations involved in energy generation and iron metabolism was different in elite endurance athletes vs. controls. Thus, an optimal genetic profile in these genes might contribute to physical endurance in athlete status. Novelty Genetic profile in energy generation and iron-metabolising genes in elite endurance athletes is different than that of nonathletes. There is an implication of an "optimal" genetic profile in the selected genes favouring endurance sporting performance.
Collapse
Affiliation(s)
- David Varillas Delgado
- Universidad Francisco de Vitoria, Faculty of Medicine, Research Unit, Pozuelo de Alarcón, Madrid 28223, Spain
| | | | - Diana Monge Martín
- Universidad Francisco de Vitoria, Faculty of Medicine, Pozuelo de Alarcón, Madrid 28223, Spain
| | - Juan Del Coso
- Rey Juan Carlos University, Centre for Sport Studies, Fuenlabrada, Madrid 28933, Spain
| |
Collapse
|
20
|
Hitawala A, Alomari M, Khazaaleh S, Alomari A, Sanaka MR. Hemochromatosis As an Unusual Cause of Pancreatitis in an African-American Female of Child-bearing Age. Cureus 2020; 12:e7179. [PMID: 32257719 PMCID: PMC7123287 DOI: 10.7759/cureus.7179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Hemochromatosis is a disorder of iron overload whereby there is toxic deposition of iron in various tissues and organs of the body. It can either be hereditary or secondary to some other underlying cause. Patients with mutations in the HFE gene are often predisposed to developing this disorder. It has a wide range of clinical presentation, from non-specific symptoms such as fatigue to overt development of cirrhosis, diabetes and skin pigmentation. We present an unusual case of hemochromatosis where an African-American female of child-bearing age presented to the emergency room with complaints of epigastric pain. She was found to have mildly elevated lipase and liver enzymes. Imaging studies were suggestive of acute-on-chronic pancreatitis with iron deposition in the spleen, pancreas and bone marrow. Her ferritin and transferrin saturation levels were elevated. She was diagnosed with acute-on-chronic pancreatitis secondary to alcoholism and hemochromatosis and treated with phlebotomy with good outcome. This case is one of the few reported cases of hemochromatosis in African-Americans, and emphasizes that even females in child-bearing age group can develop this condition. Elevated ferritin and transferrin saturation levels should prompt evaluation for this disorder.
Collapse
Affiliation(s)
- Asif Hitawala
- Internal Medicine, Cleveland Clinic-Fairview Hospital, Cleveland, USA
| | | | | | - Ahmed Alomari
- Internal Medicine, The Hashemite University, Zarqa, JOR
| | | |
Collapse
|
21
|
Corral VM, Schultz ER, Connell GJ. Neither miR-7-5p nor miR-141-3p is a major mediator of iron-responsive transferrin receptor-1 mRNA degradation. RNA (NEW YORK, N.Y.) 2019; 25:1407-1415. [PMID: 31439810 PMCID: PMC6795136 DOI: 10.1261/rna.072371.119] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The transferrin receptor (TfR1) is the principal means of iron importation for most mammalian cells, and regulation of mRNA stability is a major mechanism through which TfR1 expression is controlled in response to changing intracellular iron levels. An endonuclease activity degrades the TfR1 mRNA during iron-repletion, which reduces iron importation and contributes to the restoration of homeostasis. Correct identification of the TfR1 mRNA endonuclease activity is important as it has the potential to be a pharmacological target for the treatment of several pathologies in which iron homeostasis is perturbed. A recent RNA article identified both miR-7-5p and miR-141-3p as mediators of TfR1 mRNA degradation during iron-repletion. However, the proposed TfR1 microRNA binding sites are inconsistent with several earlier studies. To better understand the discrepancy, we tested the proposed sites within an assay developed to detect changes to TfR1 mRNA stability. The complete disruption of both proposed binding sites failed to impact the assay in all cell lines tested, which include cell lines derived from mouse connective tissue (L-M), a human colon adenocarcinoma (SW480), and a human ovarian carcinoma (A2780). The overexpression of a miR-7-5p mimic also failed to decrease expression of both the endogenous TfR1 mRNA and a luciferase-TfR1 reporter under conditions in which the expression of a previously identified mir-7-5p target is attenuated. As a result, it is unlikely that the microRNAs are directly mediating iron-responsive degradation of the TfR1 mRNA as recently proposed. Instead, three short hairpin loops within the TfR1 3'-UTR are shown to be more consistent as endonuclease recognition elements.
Collapse
Affiliation(s)
- Victor M Corral
- Department of Pharmacology, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Eric R Schultz
- Department of Pharmacology, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | | |
Collapse
|