Used as a nuclear MRI contrast agent (usually in its chelated form). Also used in magnets, compact discs, superconductors, magnets, and fluorescent materials.Can also be found in ground and drinking water.
Gdions in chelates can be exchanged with cations like zinc, copper, calcium, or iron. Zinc is a major contributor, therefore adequatezinc levels improve Gd excretion.
Gdcan accumulatein tissue, bone, and brain. Usually removed via kidney. Chelated Gd can dissociate under certain metabolic conditions and inhibit intracellular calcium signalingand disrupt the action of thyroid hormone. Gd targets iron recycling macrophages, induces cellular iron import/export, and labile iron release, which participates in systemic fibrosis.
References:
Rogowska J, Olkowska E, Ratajczyk W, Wolska L. Gadolinium as a new emerging contaminant of aquatic environments. Environ Toxicol Chem. 2018;37(6):1523-1534.
Cacheris WP, Quay SC, Rocklage SM. The relationship between thermodynamics and the toxicity of gadolinium complexes. Magn Res Imaging. 1990;8(4):467-481.
Ariyani W, Khairinisa MA, Perrotta G, Manto M, Koibuchi N. The Effects of Gadolinium-Based Contrast Agents on the Cerebellum: from Basic Research to Neurological Practice and from Pregnancy to Adulthood. Cerebellum. 2018;17(3):247-251.
Swaminathan S. Gadolinium toxicity: iron and ferroportin as central targets. Mag Res Imaging. 2016;34(10):1373-1376.
Malayeri AA, Brooks KM, Bryant LH, et al. National Institutes of Health Perspective on Reports of Gadolinium Deposition in the Brain. J Am Coll Radiol. 2016;13(3):237-241.
Runge VM. Critical Questions Regarding Gadolinium Deposition in the Brain and Body After Injections of the Gadolinium-Based Contrast Agents, Safety, and Clinical Recommendations in Consideration of the EMA’s Pharmacovigilance and Risk Assessment Committee Recommendation for Suspension of the Marketing Authorizations for 4 Linear Agents. Invest Radiol. 2017;52(6):317-323.
Gulani V, Calamante F, Shellock FG, Kanal E, Reeder SB. Gadolinium deposition in the brain: summary of evidence and recommendations. Lancet Neurol. 2017;16(7):564-570.
Leyba K, Wagner B. Gadolinium-based contrast agents: why nephrologists need to be concerned. Curr Opin Nephrol Hypertens. 2019;28(2):154-162.
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In spite of past research, recent studies reveal brain deposition of Gd post MRI can occur, but information on adverse health effects in humans is lacking. In chronic kidney disease however, there is risk of nephrogenic systemic fibrosis (cutaneous and visceral fibrosis with renal failure).
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% Omega-3s, % Omega-6s, % Omega-9s, % Saturated Fats, 1-Methylhistidine, 3-Hydroxyisovaleric Acid, 3-Hydroxyphenylacetic Acid, 3-Hydroxypropionic Acid, 3-Methyl-4-OH-phenylglycol, 3-Methylhistidine, 4-Hydroxyphenylacetic Acid, 5-OH-indoleacetic Acid, 8-OHdG (urine), a-Amino-N-butyric Acid, a-Aminoadipic Acid, a-Hydroxybutyric Acid, a-Hydroxyisobutyric Acid (from MTBE), a-Keto-b-Methylvaleric Acid, a-Ketoadipic Acid, a-Ketoglutaric Acid, a-Ketoisocaproic Acid, a-Ketoisovaleric Acid, a-Ketophenylacetic Acid (from Styrene), a-Linolenic (ALA) 18:3 n3, AA / EPA (20:4 n6 / 20:5 n3), Adipic Acid, Alanine, Aluminum, Anserine (dipeptide), Antimony, Arachidic C20:0, Arachidonic (AA) 20:4 n6, Arginine, Arsenic, Asparagine, Aspartic Acid, b-Alanine, b-Aminoisobutyric Acid, b-OH-b-Methylglutaric Acid, b-OH-Butyric Acid, Barium, Behenic C22:0, Benzoic Acid, Bismuth, Cadmium, Calcium, Carnosine (dipeptide), Cesium, Chromium, cis-Aconitic Acid, Citramalic Acid, Citric Acid, Citrulline, Cobalt, Copper, Creatinine, Creatinine Concentration (Amino Acids FMV), Cystathionine, Cysteine, Cystine, D-Arabinitol, Dihomo-g-linolenic (DGLA) 20:3 n6, Dihydroxyphenylpropionic Acid (DHPPA), Docosahexaenoic (DHA) 22:6 n3, Docosapentaenoic (DPA) 22:5 n3, Docosatetraenoic (DTA) 22:4 n6, Eicosadienoic 20:2 n6, Eicosapentaenoic (EPA) 20:5 n3, Elaidic 18:1 n9t, Ethanolamine, Formiminoglutamic Acid (FIGlu), g-Aminobutyric Acid, g-Linolenic (GLA) 18:3 n6, Gadolinium, Gallium, Glutamic Acid, Glutamine, Glutaric Acid, Glyceric Acid, Glycine, Glycolic Acid, Hippuric Acid, Histidine, Homovanillic Acid, Indoleacetic Acid, Iron, Isocitric Acid, Isoleucine, Isovalerylglycine, Kynurenic / Quinolinic Ratio, Kynurenic Acid, Lactic Acid, Lead, Leucine, Lignoceric C24:0, Linoleic (LA) 18:2 n6, Linoleic / DGLA (18:2 n6 / 20:3 n6), Lipid Peroxides (urine), Lithium, Lysine, Magnesium, Malic Acid, Manganese, Margaric C17:0, Mercury, Methionine, Methylmalonic Acid, Molybdenum, Nervonic 24:1 n9, Nickel, Niobium, Oleic 18:1 n9, Omega-3 Index, Omega-6s /Omega-3s, Ornithine, Orotic Acid, Oxalic Acid, Palmitic C16:0, Palmitoleic 16:1 n7, Pentadecanoic C15:0, Phenylacetic Acid, Phenylalanine, Phosphoethanolamine, Phosphoserine, Platinum, Potassium, Proline, Pyroglutamic Acid, Pyruvic Acid, Quinolinic Acid, Rubidium, Sarcosine, Selenium, Serine, Stearic C18:0, Strontium, Suberic Acid, Succinic Acid, Sulfur, Tartaric Acid, Taurine, Thallium, Thorium, Threonine, Tin, Tricosanoic C23:0, Tryptophan, Tungsten, Tyrosine, Uranium, Urea, Urine Creatinine, Vaccenic 18:1 n7, Valine, Vanadium, Vanilmandelic Acid, Xanthurenic Acid, Zinc
