Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1997-8-21
pubmed:abstractText
Germanium-containing dietary supplements became popular in the 1970s in Japan and later in other countries, as elixirs for certain diseases (e.g., cancer and AIDS). Germanium is not an essential element. Its acute toxicity is low. However, at least 31 reported human cases linked prolonged intake of germanium products with renal failure and even death. Signs of kidney dysfunction, kidney tubular degeneration, and germanium accumulation were observed. Other adverse effects were anemia, muscle weakness, and peripheral neuropathy. Recovery of renal function is slow and incomplete even long after germanium intake was stopped. The total dose of ingested germanium (as dioxide, carboxyethyl germanium sesquioxide, germanium-lactate-citrate, or unspecified forms) varied from 15 to over 300 g; the exposure duration varied from 2 to 36 months. In laboratory animals, elevated germanium in tissues and impaired kidney and liver function were observed in a life-time drinking water (5 ppm germanium) study. Other toxicities associated with ingested germanium products in human cases were also demonstrated in animal studies with germanium dioxide and sometimes other germanium compounds. Based on the evidence of persistent renal toxicity associated with germanium dioxide, the lack of conclusive findings of differential nephrotoxicity of organic germanium compounds, and the possibility of contamination of the organic germanium products with inorganic germanium, it is clear that germanium products present a potential human health hazard.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0273-2300
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
211-9
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:9237323-Administration, Oral, pubmed-meshheading:9237323-Adolescent, pubmed-meshheading:9237323-Adult, pubmed-meshheading:9237323-Anemia, pubmed-meshheading:9237323-Animals, pubmed-meshheading:9237323-Antimutagenic Agents, pubmed-meshheading:9237323-Antineoplastic Agents, pubmed-meshheading:9237323-Child, pubmed-meshheading:9237323-Child, Preschool, pubmed-meshheading:9237323-Female, pubmed-meshheading:9237323-Food, Fortified, pubmed-meshheading:9237323-Germanium, pubmed-meshheading:9237323-Humans, pubmed-meshheading:9237323-Kidney, pubmed-meshheading:9237323-Lethal Dose 50, pubmed-meshheading:9237323-Liver, pubmed-meshheading:9237323-Male, pubmed-meshheading:9237323-Middle Aged, pubmed-meshheading:9237323-Muscle Weakness, pubmed-meshheading:9237323-Neurons, pubmed-meshheading:9237323-Organometallic Compounds, pubmed-meshheading:9237323-Renal Insufficiency, pubmed-meshheading:9237323-Risk Assessment
pubmed:year
1997
pubmed:articleTitle
Hazard assessment of germanium supplements.
pubmed:affiliation
Center for Food Safety and Applied Nutrition, Food and Drug Administration, Washington, DC 20204, USA.
pubmed:publicationType
Journal Article, Review