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https://www.readbyqxmd.com/read/29036914/molecular-characterization-and-functional-analysis-of-a-ferritin-heavy-chain-subunit-from-the-eri-silkworm-samia-cynthia-ricini
#1
Hai-Zhong Yu, Shang-Zhi Zhang, Yan Ma, Dong-Qiong Fei, Bing Li, Li-Ang Yang, Jie Wang, Zhen Li, Azharuddin Muhammad, Jia-Ping Xu
Ferritins are conserved iron-binding proteins that are primarily involved in iron storage, detoxification and the immune response. Despite the importance of ferritin in organisms, little is known about their roles in the eri-silkworm (Samia cynthia ricini). We previously identified a ferritin heavy chain subunit named ScFerHCH in the S. c. ricini transcriptome database. The full-length S. c. ricini ferritin heavy chain subunit (ScFerHCH) was 1863 bp and encoded a protein of 231 amino acids with a deduced molecular weight of 25...
October 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29034829/the-impact-of-obesity-on-brain-iron-levels-and-%C3%AE-synuclein-expression-is-regionally-dependent
#2
Jian Han, Justin Plummer, Lumei Liu, Aria Byrd, Michael Aschner, Keith M Erikson
BACKGROUND: The importance of iron homeostasis is particularly apparent in the brain, where iron deficiency results in impaired cognition and iron accumulation is associated with neurodegenerative diseases. Obesity is linked to iron deficiency systemically, but the effects of obesity on brain iron and its associated consequences, including neurodegenerative processes remain unexplored. This preliminary study examined the effect of dietary-induced obesity on brain regional iron, α-synuclein expression, and F2-isoprostane (oxidative stress marker) concentrations in selected brain regions...
October 16, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/29034300/generating-method-specific-reference-ranges-a-harmonious-outcome
#3
Graham R Lee, Alison Griffin, Kieran Halton, Maria C Fitzgibbon
OBJECTIVES: When laboratory Reference Ranges (RR) do not reflect analytical methodology, result interpretation can cause misclassification of patients and inappropriate management. This can be mitigated by determining and implementing method-specific RRs, which was the main objective of this study. DESIGN AND METHODS: Serum was obtained from healthy volunteers (Male + Female, n > 120) attending hospital health-check sessions during June and July 2011. Pseudo-anonymised aliquots were stored (at - 70 °C) prior t° analysis on Abbott ARCHITECT c16000 chemistry and i2000SR immunoassay analysers...
December 2017: Pract Lab Med
https://www.readbyqxmd.com/read/29033897/evaluation-of-cardiometabolic-parameters-among-obese-women-using-oral-contraceptives
#4
Júnia Raquel Dutra Ferreira, Milena Magalhães Aleluia, Camylla Vilas Boas Figueiredo, Larissa Castro de Lima Vieira, Rayra Pereira Santiago, Caroline Conceição da Guarda, Cynara Gomes Barbosa, Ricardo Riccio Oliveira, Elisângela Vitória Adorno, Marilda de Souza Gonçalves
BACKGROUND: Combined oral contraceptive (COC) use has been associated with an unfavorable impact on carbohydrate and lipid metabolism in diverse populations of normal weight and obese women. The present study aimed to evaluate the cardiometabolic and inflammatory profiles of women in northeastern Brazil with respect to COC use and obesity. METHODS: We performed a cross-sectional study to verify cardiovascular parameters, including blood pressure (BP), fasting serum glucose, lipid, and inflammatory profile, in a population of women aged 15-45 years, considering obesity and COC use...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29033620/comparative-safety-of-intravenous-ferumoxytol-versus-ferric-carboxymaltose-for-the-treatment-of-iron-deficiency-anemia-rationale-and-study-design-of-a-randomized-double-blind-study-with-a-focus-on-acute-hypersensitivity-reactions
#5
N Franklin Adkinson, William E Strauss, Kristine Bernard, Robert F Kaper, Iain C Macdougall, Julie S Krop
BACKGROUND: Intravenous (IV) iron is often used to treat iron deficiency anemia in patients who are unable to tolerate or are inadequately managed with oral iron. However, IV iron treatment has been associated with acute hypersensitivity reactions. The comparative risk of adverse events (AEs) with IV iron preparations has been assessed by a few randomized controlled trials, which are most often limited by small patient numbers, which lack statistical power to identify differences in low-frequency AE such as hypersensitivity reactions...
2017: Journal of Blood Medicine
https://www.readbyqxmd.com/read/29033409/evaluation-of-serum-ferritin-and-thyroid-function-in-the-second-trimester-of-pregnancy
#6
Leqi He, Chunmei Shen, Yanan Zhang, Zaoping Chen, Heyuan Ding, Jun Liu, Bingbing Zha
Ferritin is a universal intracellular protein that acts as an iron carrier. Several studies have indicated that iron deficiency affects thyroid function in non-pregnant women. Our objective was to assess the relationship between serum ferritin levels and thyroid function in pregnant women during the second trimester. Pregnant women with sufficient iodine intake and normal antithyroid antibodies during the second trimester were recruited from the obstetric outpatient department of the Fifth People's Hospital of Fudan University...
October 13, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/29032957/iron-absorption-from-oral-iron-supplements-given-on-consecutive-versus-alternate-days-and-as-single-morning-doses-versus-twice-daily-split-dosing-in-iron-depleted-women-two-open-label-randomised-controlled-trials
#7
Nicole U Stoffel, Colin I Cercamondi, Gary Brittenham, Christophe Zeder, Anneke J Geurts-Moespot, Dorine W Swinkels, Diego Moretti, Michael B Zimmermann
BACKGROUND: Current guidelines to treat iron deficiency recommend daily provision of ferrous iron divided through the day to increase absorption. However, daily dosing and split dosing might increase serum hepcidin and decrease iron absorption from subsequent doses. Our study aim was to compare iron absorption from oral iron supplements given on consecutive versus alternate days and given as single morning doses versus twice-daily split dosing. METHODS: We did two prospective, open-label, randomised controlled trials assessing iron absorption using ((54)Fe)-labelled, ((57)Fe)-labelled, or ((58)Fe)-labelled ferrous sulfate in iron-depleted (serum ferritin ≤25 μg/L) women aged 18-40 years recruited from ETH Zurich and the University of Zurich, Switzerland...
October 6, 2017: Lancet Haematology
https://www.readbyqxmd.com/read/29032941/ferritin-iron-regulators-pcbp1-and-ncoa4-respond-to-cellular-iron-status-in-developing-red-cells
#8
Moon-Suhn Ryu, Kari A Duck, Caroline C Philpott
Developing red blood cells exhibit multiple, redundant systems for regulating and coordinating the uptake of iron, the synthesis of heme, and the formation of hemoglobin during terminal differentiation. We recently described the roles of poly rC-binding protein (PCBP1) and nuclear coactivator 4 (NCOA4) in mediating the flux of iron through ferritin in developing erythroid cells, with PCBP1, an iron chaperone, delivering iron to ferritin and NCOA4, an autophagic cargo receptor, directing ferritin to the lysosome for degradation and iron release...
September 28, 2017: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/29029193/sex-and-iron-modify-fibroblast-growth-factor-23-fgf23-concentration-in-1-year-old-children
#9
Elisa Holmlund-Suila, Maria Enlund-Cerullo, Saara Valkama, Helena Hauta-Alus, Jenni Rosendahl, Otto Helve, Timo Hytinantti, Heli Viljakainen, Sture Andersson, Outi Mäkitie
Context: Fibroblast growth factor 23 (FGF23) plays an important role in phosphate homeostasis but its regulation is inadequately characterized. Objective: To examine regulators of FGF23, especially sex and iron status, in early childhood. Design: A cross-sectional study involving 1-year-old children. Setting and participants: Healthy term infants with a birth weight appropriate for gestational age were recruited to an ongoing vitamin D trial at the Kätilöopisto Maternity Hospital, Helsinki, Finland...
October 5, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29026901/dietary-iron-loading-negatively-affects-liver-mitochondrial-function
#10
Chiara Volani, Carolina Doerrier, Egon Demetz, David Haschka, Giuseppe Paglia, Alexandros A Lavdas, Erich Gnaiger, Guenter Weiss
Iron is an essential co-factor for several metabolic processes, including mitochondrial respiration, and mitochondria are the major sites of iron-utilization. Cellular iron homeostasis must be tightly regulated, as intracellular iron deficiency can lead to insufficient energy production, whereas iron overload triggers ROS (reactive oxygen species) formation via the Fenton reaction. So far little is known on how iron imbalances affect mitochondrial function in vivo and the impact of the genotype on that, we studied the effects of dietary iron loading on mitochondrial respiratory capacity in liver by comparing two genetically divergent mouse strains, namely C57BL/6N and FVB mice...
October 13, 2017: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/29026752/hwa-hypoferritinemia-without-anemia-a-hidden-hematology-disorder
#11
Hassan A Al-Jafar
INTRODUCTION: Anemia is a condition, in which the number of red blood cells (RBC) and the hemoglobin (Hb) is insufficient to meet the body's physiologic needs. Hypoferritinemia without anemia (HWA) could cause masked clinical manifestations as general weakness, easy fatigability, depressed mode, and hair loss but with normal complete blood count (CBC) parameters. HWA is deferent from iron deficiency anemia (IDA) because there is no reduction in the RBC, Hb, or any of the other parameters of the CBC...
January 2017: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/29026589/a-retrospective-analysis-of-biochemical-and-haematological-parameters-in-patients-with-eating-disorders
#12
Leanne J Barron, Robert F Barron, Jeremy C S Johnson, Ingrid Wagner, Cameron J B Ward, Shannon R B Ward, Faye M Barron, Warren K Ward
BACKGROUND: The objective of the study was to determine whether levels of biochemical and haematological parameters in patients with eating disorders (EDs) varied from the general population. Whilst dietary restrictions can lead to nutritional deficiencies, specific abnormalities may be relevant to the diagnosis, pathogenesis and treatment of EDs. METHODS: With ethics approval and informed consent, a retrospective chart audit was conducted of 113 patients with EDs at a general practice in Brisbane, Australia...
2017: Journal of Eating Disorders
https://www.readbyqxmd.com/read/29026392/evaluation-of-the-mobile-phone-electromagnetic-radiation-on-serum-iron-parameters-in-rats
#13
Murat Çetkin, Can Demirel, Neşe Kızılkan, Nur Aksoy, Hülya Erbağcı
BACKGROUND: Electromagnetic fields (EMF) created by mobile phones during communication have harmful effects on different organs. OBJECTIVES: It was aimed to investigate the effects of an EMF created by a mobile phone on serum iron level, ferritin, unsaturated iron binding capacity and total iron binding capacity within a rat experiment model. METHODS: A total of 32 male Wistar albino rats were randomly divided into the control, sham, mobile phone speech (2h/day) and stand by (12 h/day) groups...
March 2017: African Health Sciences
https://www.readbyqxmd.com/read/29024968/iron-suppresses-ovarian-granulosa-cell-proliferation-and-arrests-cell-cycle-through-regulating-p38-mapk-p53-p21-pathway
#14
Mei-Jou Chen, Chia-Hong Chou, Chia-Tung Shun, Tsui-Lien Mao, Wen-Fen Wen, Chin-Der Chen, Shee-Uan Chen, Yu-Shih Yang, Hong-Nerng Ho
Iron is an essential nutrient that may exert toxic effects when it accumulates in tissues. Little is known regarding its effects on gonadal function. Both Fe2+ and Fe3+ could be released from iron deposition. We employed mouse non-luteinized granulosa cell for in vitro studies and human ovarian tissues for Prussian blue and immunohistochemical staining to identify the iron deposition and effect in vivo. After treatment with FeSO4-7H2O or FeCl3 in granulosa cell cultured with follicle stimulating hormone (FSH) for 48 hours, we found that Fe2+ significantly suppressed FSH-induced granulosa cell proliferation and arrested the cell cycle at the G2/M phase by cell proliferation assay and flow cytometry...
August 28, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29024114/iron-deficiency-among-blood-donors-experience-from-the-danish-blood-donor-study-and-from-the-copenhagen-ferritin-monitoring-scheme
#15
REVIEW
A S Rigas, O B Pedersen, K Magnussen, C Erikstrup, H Ullum
Blood components collected from blood donors are an invaluable part of modern-day medicine. A healthy blood donor population is therefore of paramount importance. The results from the Danish Blood Donor Study (DBDS) indicate that gender, number of previous donations, time since last donation and menopausal status are the strongest predictors of iron deficiency. Only little information on the health effects of iron deficiency in blood donors exits. Possibly, after a standard full blood donation, a temporarily reduced physical performance for women is observed...
October 10, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/29023673/eppur-si-muove-ferritin-is-essential-in-modulating-inflammation
#16
Kassem Sharif, Vania Vieira Borba, Gisele Zandman-Goddard, Yehuda Shoenfeld
Ferritin, which was only discovered in the last century has stirred a formidable debate.. For long, Ferritin was appreciated as a non-specific acute phase reactant. Several years ago, we hypothesized the contributory role of ferritin as a pathogenic molecule rather than being a product of inflammation. Latest emerging evidence provide support to this notion. Such revelation provides a step forward toward the understanding of disease conditions associated with hyperferritenemia, and hence provide new targets for treatment modalities...
October 11, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29022685/inverse-relationship-between-adherence-to-the-mediterranean-diet-and-serum-cystatin-c-levels
#17
Natalia G Vallianou, Ekavi Georgousopoulou, Angelos A Evangelopoulos, Vassiliki Bountziouka, Maria S Bonou, Evangelos D Vogiatzakis, Petros C Avgerinos, John Barbetseas, Demosthenes B Panagiotakos
OBJECTIVE: The aim of the present study was to examine serum cystatin C levels in association with the Mediterranean diet in a healthy Greek population. METHODS: Cystatin C together with basic clinical chemistry tests was measured in a total of 490 adults (46±16 years, 40% of males), who underwent an annual health check. Demographic, anthropometric and lifestyle characteristics were recorded, while adherence to the Mediterranean diet was evaluated through the MedDietScore (0-55)...
September 2017: Central European Journal of Public Health
https://www.readbyqxmd.com/read/29022497/estrogen-induced-disruption-of-intracellular-iron-metabolism-leads-to-oxidative-stress-membrane-damage-and-cell-cycle-arrest-in-mcf-7-cells
#18
Khuloud Bajbouj, Jasmin Shafarin, Maher Y Abdalla, Iman M Ahmad, Mawieh Hamad
It is well established that several forms of cancer associate with significant iron overload. Recent studies have suggested that estrogen (E2) disrupts intracellular iron homeostasis by reducing hepcidin synthesis and maintaining ferroportin integrity. Here, the ability of E2 to alter intracellular iron status and cell growth potential was investigated in MCF-7 cells treated with increasing concentrations of E2. Treated cells were assessed for intracellular iron status, the expression of key proteins involved in iron metabolism, oxidative stress, cell survival, growth, and apoptosis...
October 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29019009/electroinduced-extraction-of-human-ferritin-heavy-chain-expressed-in-hansenula-polymorpha
#19
Valentina Ganeva, Bojidar Galutzov, Boyana Angelova, Manfred Suckow
А protocol for the efficient and selective recovery of human ferritin heavy chain (FTH1) expressed intracellularly in Hansenula polymorpha was developed. It was based on electropermeabilisation and an increase in the cell wall porosity by pulsed electric field (PEF) treatment and subsequent incubation with a low concentration of a lytic enzyme. Irreversible plasma membrane permeabilisation was induced by applying rectangular electric pulses in the flow mode. The electrical treatment itself did not cause the release of the recombinant protein but induced the sensitisation of H...
October 11, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29016575/role-of-intravenous-ferric-carboxy-maltose-in-pregnant-women-with-iron-deficiency-anaemia
#20
Vineet Mishra, Khusaili Gandhi, Priyankur Roy, Shaheen Hokabaj, Kunur N Shah
BACKGROUND: Iron deficiency is a common nutritional deficiency amongst women of childbearing age. Peri-partum iron deficiency anaemia is associated with significant maternal, foetal and infant morbidity. Current options for treatment include oral iron, which can be ineffective and poorly tolerated, and red blood cell transfusions, which carry an inherent risk and should be avoided. Ferric carboxymaltose is a modern treatment option. The study was designed to assess the safety and efficacy of intravenous ferric carboxymaltose for correction of iron deficiency anaemia in pregnant women...
September 8, 2017: Journal of Nepal Health Research Council
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