Minamata disease


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Minamata disease

 [min″ah-mah´tah]
a severe neurologic disorder due to alkyl mercury poisoning, leading to severe permanent neurologic and mental disabilities or death; once common among those who ate contaminated seafood from Minamata Bay, Japan.

Mi·na·ma·ta dis·ease

a neurologic disorder caused by methyl mercury intoxication; first described in the inhabitants of Minamata Bay, Japan, resulting from their eating fish contaminated with mercury industrial waste. Characterized by peripheral sensory loss, tremors, dysarthria, ataxia, and both hearing and visual loss.

Minamata disease

(mĭn′ə-mä′tə)
n.
A degenerative neurological disorder caused by poisoning with a mercury compound found in seafood obtained from waters contaminated with mercury-containing industrial waste.

Minamata disease

[min′əmä′tə]
a severe degenerative neurological disorder caused by the ingestion of seed grain heated with alkyl compounds of mercury or of seafood taken from waters polluted with industrial wastes contaminated by soluble mercuric salts. The term is derived from a tragedy involving Japanese who ate seafood from Minamata Bay. Mercury passes the placental barrier, causing the congenital form of the disease. Symptoms may not appear for several weeks or months; they include paresthesia of the mouth and extremities; tunnel vision; difficulties in speech, hearing, muscular coordination, and concentration; weakness; emotional instability; and stupor. Continued ingestion causes serious damage to the renal tubules and corrosion of the GI tract. Acute cases may result in coma and death. See also mercury poisoning.
A disease caused by consumption of fish and shellfish contaminated with organic methylmercury—inorganic mercury, a major teratogen discharged into nearby rivers by industrial plants that produce acetaldehyde, using mercury as a catalyst

Mi·na·ma·ta dis·ease

(min-ă-mah'tă di-zēz')
A neurologic disorder caused by methyl mercury intoxication; first described in the inhabitants of Minamata Bay, Japan, resulting from eating fish contaminated with mercury-tainted industrial waste. Characterized by peripheral sensory loss, tremors, dysarthria, ataxia, and both hearing and visual loss.

Minamata disease

mercury poisoning in cats, birds and humans originating from industrial pollution of Minamata bay in Japan, and the poisoning of fish and shellfish which were then absorbed into the local food chains.
References in periodicals archive ?
Hiroyuki Moriyama and Kazumitsu Hannaga, a congenital Minamata disease patient, at Meisui-en Hospital, Minamata, 1991.
While sensory impairment is one of the criteria for official recognition as a Minamata disease patient, it is difficult for sufferers who have entered their 50s to prove the symptom, although they exhibit higher brain dysfunction apparently caused by mercury,'' said Masazumi Harada, professor at Kumamoto Gakuen University.
Recently, the Japanese Society of Psychiatry and Neurology and court rulings on damages suits by Minamata disease patients, as well as some researchers criticized the standards for being too severe and failing to offer valid reasoning.
If one visits the Minamata region today, one would be struck by the poverty that still prevails in a country which takes pride in being one of the largest industrial producers in the world and by the agony and sufferings which Minamata disease has left upon the victims and their relatives.
In February last year, the Fukuoka High Court ordered the Kumamoto prefectural government to recognize Mizoguchi posthumously as a Minamata disease sufferer and invalidated the central government's criteria for recognizing such patients, overruling a lower court decision that turned down the relatives' demand.
KUMAMOTO, Japan - The Kumamoto District Court on Friday sought reconciliation on a damages suit filed by a group of unrecognized Minamata disease patients against the state, Kumamoto Prefecture and chemical maker Chisso Corp.
KUMAMOTO, Japan - Senior vice environment minister Issei Tajima showed willingness Saturday to begin talks toward settlements with unrecognized Minamata disease patients engaged in court battles.
Jane Pangemanan, who leveled the initial allegations against PTNMR, recanted earlier charges and testified under oath that she did not diagnose any heavy metal related diseases in villagers; * Tests conducted by the United Nations' World Health Organization, Indonesia's Ministry of the Environment, Australia's Commonwealth Scientific and Industrial Research Organisation, and Japan's National Institute for Minamata Disease all showed that Buyat Bay was not polluted; and, * Five current and former government officials and regulators testified under oath that Newmont had all the appropriate operating permits and did not violate any of them.
KUMAMOTO, Japan - Officials of the former Environment Agency said in 1991 the opinion of eight doctors on recognition standards for Minamata disease is merely an ''administrative viewpoint,'' according to a document Kyodo News obtained Sunday.
Deadline to expire for application to state redress over Minamata disease
2010) reviewed the scientific discoveries of health risks resulting from methylmercury exposure, including the history of the Minamata disease incident.
The existence of Minamata disease (methyl mercury poisoning), with symptoms that include tremors, clumsiness, loss of balance, blurred vision, speech impairment and slowed mental response, is not acknowledged in this country.