A known teratogen _ an agent that causes birth defects _ it initially is being aimed at a tiny population of carefully monitored patients who suffer a disfiguring form of leprosy.
42.
Since 1989, Dr . Allen Mitchell of the Boston University School of Medicine has surveyed women who take Accutane, a proven teratogen, for a severe form of acne.
43.
In addition to its carcinogenic properties, DES is a known teratogen, an agent capable of causing malformations in daughters and sons who were exposed " in utero ".
44.
Sherman pointed out that in large quantities, some of the antimicrobial chemicals found in spice plants are mutagens, carcinogens, and teratogens, substances that can cause genetic damage and birth defects.
45.
Particular plant foods, whilst unharmful to adults, can contain toxins ( e . g . teratogens ) that are dangerous for developing embryos and can potentially cause birth defects such as facial asymmetry.
46.
Similar to cyclopamine, which also occurs in the " Veratrum " genus, it is a teratogen implicated in birth defects when consumed by animals during a certain period of their gestation.
47.
An example is the teratogen and carcinogen phorbol 12-myristate 13-acetate, which is a plant terpene that activates protein kinase C, which promotes cancer, making it a useful investigative tool.
48.
One well known group of substances which are toxic for reproduction are teratogens substances which cause birth defects of which ( " S " )-thalidomide is possibly the most notorious.
49.
Specific epigenetic processes include paramutation, bookmarking, transvection, maternal effects, the progress of carcinogenesis, many effects of teratogens, regulation of histone modifications and heterochromatin, and technical limitations affecting parthenogenesis and cloning.
50.
Understanding how a "'teratogen "'causes its effect is not only important in preventing congenital abnormalities but also has the potential for developing new therapeutic drugs safe for use with pregnant women.
