1999;50(3):289-297. In humans, absorption of molybdenum after oral intake is in the range of 28-77% and urinary excretion is 17-80% of the total dose. Molybdenum compounds have low toxicity towards humans but there are not enough data to calculate any dose-response or dose-effect relationships. Laboratory tests showed high levels of sulfite and xanthine … Arh.Hig.Rada Toksikol. Massive molybdenum exposure in … Though not very well documented, other possible symptoms of molybdenum toxicity involve joint and muscle pain, weakness, fatigue, loose stool and weight loss. In cattle, molybdenum has also been linked to fertility problems. These results are more realistic in showing the susceptibility and the risk birds are exposed to when it comes to environmental molybdenum. Excessive intake however, of more than 10 mg daily over a long period has been linked to gout-like symptoms such as pain and swelling of joints. IV-Signs, Symptoms, and Syndromes : A-Acute Toxicity : Molybdenum products may cause toxicity in humans, but adequate studies reporting such effects are lacking. In an attempt to define a tolerable daily intake (TDI) for molybdenum based on a toxicological risk analysis approach, a large literature survey was conducted. Dietary Sources of Molybdenum Human impact associated with molybdenum environmental contamination involves mainly combustion of fossil fuels, mining, and metallurgy. View abstract. A low order of toxicity of molybdenum compounds has been observed in humans. Ratios exceeding 15:1 may cause chronic copper poisoning. Symptoms of Molybdenum poisoning Little data on human toxicity of molybdenum are available; however, in 1961, a goutlike syndrome was associated with excessive exposure (10–15 mg day −1) to molybdenum. If the ratio is less than 2:1, molybdenum toxicity will occur. The high prevalence of articular effects in Armenian villages was associated with a significant ingestion of molybdenum, which caused a disorder of the metabolism of uric acid. However, with the available data, it is not possible to calculate any dose–response or dose–effect relationships. The disease occurred in Armenians living in areas rich in molybdenum, which produced hyperuricemia, arthralgias, erythema, edema, and deformity of the knees, hands, and feet. Symptoms were tachycardia, tachypnea, headache, nausea, vomiting, and coma. PDF | On Feb 1, 1990, R Kones published Molybdenum in human nutrition | Find, read and cite all the research you need on ResearchGate Absolute molybdenum concentrations in the diet >10 mg/kg will cause poisoning independent of copper consumption. Molybdenum deficiency resulting in sulfite toxicity occurred in a patient receiving long-term total parenteral nutrition. Because molybdenum toxicity is associated with copper intake or depleted copper stores in the body, humans who have an inadequate intake of dietary copper or some dysfunction in their copper metabolism that makes them copper‐deficient could be at greater risk of molybdenum toxicity. In man, absorption of molybdenum after oral intake is in the range of 28–77% and urinary excretion is 17–80% of the total dose. Toxicity and bioavailability of both Mo forms were compared. Excessive intake of molybdenum can cause copper deficiency, which may lead to anemia. Molybdenum poisoning: Introduction. A case report of acute human molybdenum toxicity from a dietary molybdenum supplement--a new member of the "Lucor metallicum" family. More detailed information about the symptoms, causes, and treatments of Molybdenum poisoning is available below.. 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