What are some examples of teratogens?
A teratogen is something that can cause birth defects or abnormalities in a developing embryo or fetus upon exposure. Teratogens include some medications, recreational drugs, tobacco products, chemicals, alcohol, certain infections, and in some cases, health problems such as uncontrolled diabetes in pregnant people.
What disorder is caused by teratogens?
Polychlorinated biphenyls, also known as PCBs, are shown to cause fetal growth restriction and skin discolouration. X-rays can cause problems with fetal development, such as spina bifida, cleft palate, blindness, abnormalities of the arms and legs, or microcephaly, which is a condition where the brain is too small.
What are 2 examples of teratogens?
- angiotensin converting enzyme (ACE) inhibitors, such as Zestril and Prinivil.
- androgens, such as methyltestosterone (Android)
- busulfan (Myleran)
- carbamazepine (Tegretol)
What are 4 teratogens?
Teratogens are classified into four types: physical agents, metabolic conditions, infection, and finally, drugs and chemicals.
What is the most common teratogen?
Alcohol: One of the most commonly used teratogens is alcohol, and because half of all pregnancies in the United States are unplanned, it is recommended that women of child-bearing age take great caution against drinking alcohol when not using birth control or when pregnant (CDC, 2005).
Is Down syndrome caused by a teratogen?
Some are recognizable genetic disorders (such as Down syndrome and muscular dystrophy), some are caused by known teratogens (eg: alcohol, rubella), and many have no identifiable cause.
What is the most commonly used teratogen?
Is coffee a teratogen?
In humans, caffeine does not present any teratogenic risk. The increased risk of the most common congenital malformations entailed by moderate consumption of caffeine is very slight.
What are the most common teratogens?
What kind of birth defect can a teratogen cause?
What is a teratogen? A teratogen is an agent, which can cause a birth defect. It is usually something in the environment that the mother may be exposed to during her pregnancy.
What are the keywords for the term teratogenicity?
Keywords: teratogenicity, teratogenic agents, congenital birth defects, rubella, herpes simplex, drugs, pollutants, embryo, syphilis, toxoplasmosis
Where are teratogens most likely to be found?
Teratogens can also be found at home or the workplace. The effect is related to type of agent, dose and duration and time of exposure. The first half of pregnancy is the most vulnerable.
What are the most sensitive periods for teratogens in pregnancy?
It could be a prescribed medication, a street drug, alcohol use, or a disease present in the mother which could increase the chance for the baby to be born with a birth defect. About 4 to 5 percent of birth defects are caused by exposure to a teratogen. What are the most sensitive periods for teratogens in pregnancy?
What are the four categories of teratogens?
Additionally, teratogens may also affect pregnancies and cause complications such as preterm labors, spontaneous abortions, or miscarriages. Teratogens are classified into four types: physical agents, metabolic conditions, infection, and finally, drugs and chemicals.
What are examples of teratogens?
Teratogens are substances that may produce physical or functional defects in the human embryo or fetus after the pregnant woman is exposed to the substance. Alcohol and cocaine are examples of such substances.
What are examples of teratogen?
A teratogen is any substance or agent that interferes with the normal development of a fetus in the womb. Examples include drugs (prescription and nonprescription), pollutants, maternal malnutrition, infectious diseases, etc.
What are teratogenic factors?
- Chemical substances.
- Ionizing radiation.
- Wrong way of life pregnant.