Methyl bromide
A fumigant gas that is an effective pesticide. Methyl bromide has been used to treat the soil, grain bins, and many agricultural products. Because it contains bromine, it depletes stratospheric ozone when released to the atmosphere. Among agricultural workers who apply pesticides, the risk of prostate cancer have been found to rise with increasing frequency of use of methyl bromide and with longer lifetime exposure to this pesticide. Risks were two to four times higher than among men who were not exposed to methyl bromide. Based on animal studies, the US National Institute for Occupational Safety and Health (NIOSH) lists methyl bromide as a potential occupational carcinogen. Under a treaty known as the Montreal Protocol, methyl bromide was to be banned for most uses by the end of 2004.
Read Also:
- Methyl-CpG-binding protein-2 (MECP2)
An enzyme which, when mutated, results in RTT (Rett syndrome), a genetic disease that is a uniform and striking, progressive neurologic developmental disorder and one of the most common causes of mental retardation in females. After normal development up to the age of 6 to 18 months, developmental stagnation occurs followed by rapid deterioration of […]
- Methylation
1. In chemistry, the addition of a methyl group to a molecule. 2. On a protein level, the addition of a methyl group or groups to the amino acid arginine or lysine in a protein. 3. On a DNA level, the addition of a methyl group to a cytosine residue to convert it to 5-methylcytosine. […]
- Methylmalonicaciduria
methylmalonicaciduria, long chain ketonuria, and intermittent hyperglycinemia.) Some but not all patients with methylmalonicaciduria respond to vitamin B12. An enzyme called methylmalonyl-CoA mutase is defective in the disease. This enzyme requires the presence of adenosylcobalamin, a form of vitamin B12. The metabolic block in methylmalonic acidemia occurs at methylmalonyl-CoA mutase and can be caused by […]
- Metrorrhagia
Menometrorrhagia; Menorrhagia.
- Methylmercury
Mercury poisoning; Minamata disease.