What is a teratogen? How does it affect normal prenatal development? Provide at least two examples to support your response. A definition of “a teratogen” it is a type of drugs that can be harmful to the fetus or a mother that is breastfeeding her baby. The elements of all these drugs all types of illegal drugs over the counter can identified as a dangerous drug that can exposure to a baby. There are chances of risk with a baby can be born with a defect. I would say in 1 percent chances that a woman is pregnant with a baby can have birth defect, it is rarely that it will happen it depend on each and individual women that are exposure to the “teratogen.” For example, a teratogen can happen in a different environment that can be exposure too which is found in the work place, house and the infectious diseases. Although, a major sources of birth defect and developmental of the incapacity intake it alcohol and
According to dictionary.com a teratogen is “a drug or other substance capable of interfering with the development of a fetus, causing birth defects”. Teratogens are also substances that are found in the environment which are known to cause defects in fetal development. Teratogens are one of the leading causes of death to newborns in the nation. “There are four major factors that depend on the extent of fetal defects and those are the dosage, genetic makeup of the mother and the developing fetus, fetal age, an other negative influences on pregnancy” (Berk, 2012). Some of the common teratogens include alcohol consumption, exposure to radiation, environmental pollution, tobacco and or drug use, and certain prescription and non-
Why it is important in our society to know what teratogen is, and some ways to prevent this birth defect in our society. Teratogen is a agent that disturbs the development of an embryo. Well, what exactly causes these disturbances in the embryo? By taking medicine during pregnancy, medicine prescribe to new mothers can cause abnormality in pregnancy. Although many women take medications during pregnancy, the medicine prescribe can be harmful. A example may be a woman during pregnancy comes across morning sickness; therefore, she may ask her doctor to prescribe medicine to treat her morning sickness. A common medicine to take during the 60's was thalidomide. However, over the years researchers found that thalidomide caused partial absence
The science behind FAS is quite simple; as it is known that alcohol has a damaging effect on the body, it has similar consequences on the fetus. Since the fetus is constantly developing, the alcohol causes more serious defects to the unborn child. Alcohol exposure to a fetus is known as a teratogen. “Teratogens are substances or conditions that disrupt typical development in offspring as a result of gestational exposure and cause birth defects.” (Wilson & Fraser, 1977). Although the exposure to alcohol causes problems in the fetus, studies have shown that it may not accurately be the alcohol in the mother’s system that causes these defects, rather the byproducts that form when the body metabolizes the alcohol. This can lead to a decrease in brain cells, abnormal location of neurons, and gross malformation to the brain. Since alcohol causes this central nervous system damage, it is classified as a neurobehavioral teratogen, which is a group of teratogens that cause brain damage and modify behaviors. (Riley & Vorhees, 1986). The CNS damage is the primary defect due to alcohol and it is quite common to have these damages without any physical abnormalities. The more alcohol that is consumed the more birth defects that will arise in the
A teratogen is any agent or factor that can disrupt the development of an embryo or fetus, which may cause a birth defect or malformation. Whether it is a medication, disease or drug, when the mother is exposed the chances of problems arising with the baby increase. Only ten to fourteen days after conception teratogens can affect the fetus. At that stage in the pregnancy the egg has already been fertilized and attached to the uterus. This is known as the embryonic stage where if health isn’t a priority complications can occur. At this point the mother and embryo share a common blood supply therefore anything the mother does affects the embryo. This is also the stage in which most miscarriages occur. There are numerous teratogens but two
As previously mentioned, environmental factors, such as exposure to taratogens, can affect the development of the unborn child. Broderick and Blewitt (2105) define a teratogen as “substances or agents that can cross the placental barrier and produce fetal deformities when taken or absorbed by the mother during pregnancy” (p.619). These substances include drugs, alcohol, cigarettes, pollution, stress hormones, poor nutrition, and diseases, such as AIDS. Consumption of drugs and/or alcohol can lead to low birth weight, as well as, physical, cognitive, and behavioral abnormalities. Furthermore, more recent studies are showing that exposure to pollutants can affect an individual’s development. For example, a study of the
Alcohol is a type of teratogen, which is an agent that can caused birth defects to occur. The timing and the amount of exposure to a teratogen is crucial when it comes to a pregnancy. A mother’s use of alcohol can greatly affect an unborn child. The timing at which the effect of teratogens varies from person to person, but the time when the teratogens have the largest effect typically occurs during the periods of rapid prenatal development. Mothers who are pregnant, or who wish to become pregnant, should avoid consuming alcohol because the teratogens can affect the mother’s eggs. It is true that there are certain stages in the pregnancy where a certain amount of exposure to teratogens will only have little impact, but there is still some form of result. When
Teratogens are all around pregnant women. Only look at the normal house hold toothpaste that states on the bottle, to seek medical attention if swallowed. Almost everyone has toothpaste in their home and uses it everyday but with all the chemicals, it is considered a teratogen if ingested. Teratogens affect embryo's development and counselors can help prevent exposure to teratogens.
Fetal alcohol spectrum disorder (FASD) is a concise, uniform definition for conditions caused by prenatal alcohol exposure. FASD is a broad term used to describe the range of effects that can occur in an individual whose mother drank alcohol during pregnancy (Caley, Kramer, & Robinson, 2005). Fetal alcohol spectrum disorder can also cause growth retardation, birth defectscomma and deficits in cognitive, languagecomma and motor development (Coles et al., 2015). Fetal alcohol spectrum disorder is a teratogenic effect, which is caused by daily, chronic, heavy and frequent alcohol use while in utero. Chances of an infant diagnosed with FASD are 0.5 to 3 in 1,000 live births (Cone-Wesson, 2005). Fetal alcohol spectrum disorder has many different diagnoses. There is fetal alcohol syndrome (FAS), partial fetal alcohol syndrome (PFAS)comma and alcohol-related neuro-developmental disorder (ARND)comma all under the fetal alcohol spectrum disorder umbrella (Brown et al., 2015). Maternal alcohol use is correlated to the timing, frequencycomma and quantity of the consumption of alcohol during pregnancy. Drinking during the first trimester may not be as detrimental as drinking during the second or third trimester. The frequency of alcohol consumed is also a key factor in FASD, such as how often per day drinks are consumed, the quantity of alcohol consumed, and how many glasses or cans per day the mother consumes
As stated earlier, alcohol has its greatest effect on the developing embryo during the first trimester of pregnancy with its teratogenic effect causing mental retardation as well as characteristic craniofacial abnormalities that are characteristic of the disease. It has also been demonstrated with experimental animal models that there is a clear "dose-response" effect between the amount of alcohol consumed by the mother and the risk that is associated with developing FAS symptoms (Walpole, p. 875). It has been proposed by Walpole and associates that there are various degrees to which the fetus An be effected. Walpole uses the term "fetal alcohol syndrome" to refer to serious effects due to heavy maternal drinking and "fetal alcohol effect" to refer to those effects thought to occur with lower maternal alcohol intake (Walpole, p. 875). Regardless of the degree to which
In general, with every pregnancy there is a 3-5% chance of having a baby with a birth defect. If a woman takes Thalidomide during her first trimester of pregnancy, the chance of her giving birth to a child with a birth defect increased to a 20%+ chance and the fetal and infant death rate is estimated to be 40% or more due to severe birth defects. (Thalidomide Side Effects on Babies). A portion of the children who suffer from birth defects caused by Thalidomide also suffer from developmental disabilities such as autism. Thalidomide victim survivors still suffer from these symptoms today. How does Thalidomide create all of these issues? The answer is science. The placenta is a very important organ that develops in the womb during pregnancy. The placenta nourishes the baby through through the umbilical cord and gets rid of all waste. The placenta is the first line of defense for the baby. It is a barrier that many harmful substances do not have the ability to cross. Before a pharmaceutical is offered to
Alcohol is known as one the most dangerous teratogens. Every time a pregnant woman drinks, she allows alcohol to enter her blood stream and make its way into the placenta. Unlike the mother, the fetus is unable to break down alcohol that makes the blood alcohol level of the fetus the same or higher than the mother (Burk, 2013). Fetal alcohol syndrome (FAS), and prenatal alcohol exposure (PAE) are considered some of the most serious consequences of maternal drinking during pregnancy. Children can exhibit physical abnormalities such as a flat mid-face, a thin upper lip, a smooth groove between the nose and upper lip, along with growth retardation, and cognitive difficulties. The affected children also have cognitive difficulties which include intelligence, language, memory, and learning (Wacha & Obrzut, 2007).
Fetal alcohol syndrome- It is frightening to know that doctors used to tell their patients that it was ok to drink a glass of wine when pregnant this is a big NO, even a sip can cause FAS. What is FAS? This is when a mother who is pregnant drinks alcohol and it reaches the fetus cause adverse birth defects. When ethanol (alcohol) is drank, it is met by enzymes who break down the substance, women have less of ADH then men making alcohol very dangerous for women just in general. Therefore when a women drinks even the littles drop it is hurting the baby in more ways than one and that one drop can cause FAS. When a drug like alcohol breaks thru the placenta barrier into the fetus there called teratogens (this is what causes the birth defect).
In the late 1950s, the Thalidomide drug was used in Europe to treat morning sickness in pregnant women among other things. This study involved manufacturing company providing samples of this drug to physicians and compensating them to study the benefits and results of this drug. Although allegedly this drug did not cause any harm to the mother the fetus suffered severe damage as a result. There were thousands of children born with