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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. Almost any man made substance could be considered a teratogen to some extent. However, the key question is at what level is a substance to be considered a teratogens because, to officially be classified as a teratogen it has to alter the embryo from an unnatural growth or lack of. From the Life Span text, it lists the most researched teratogens as alcohol, tobacco, cocaine, and marijuana (Broderick and Blewitt, 2010 pp.55). Each substance can cause severe birth defects, but an embryo are known to survive and live a healthy life even with the most researched teratogens. Teratogens can harm an embryo from three weeks up to birth. The stage of development will determine how substitutable an embry...
There are many factors that are integrated into the successful development of a child from Prenatal growth into toddlerhood. Teratogens (outside factors) have a great impact on the babies’ inutero development. Some outside factors like second-hand smoke, smog, or fumes from cleaning chemicals can cause negative effects on the child inside the womb. A few major affects from teratogens could result in low birth weight, head circumference, slow physical growth as well as an effect on mental, behavioral and motor skills (Berk, 2003). The environment around the mother provides many of these outside factors affecting the baby’s growth. But the main link to teratogens during the gestation period is most likely the mother. Daniel S. Messinger and the National Institute on Drug Abuse found that 2.8% of pregnant women admitted to using illicit drugs during their pregnancy (1996). Through illicit drug use, tobacco use and alcohol use, the mother disrupts her baby’s growth with possibly permanent damage.
Why is caffeine dangerous during pregnancy? Caffeine is dangerous during pregnancy, because it can cause miscarriages; it stresses the immature metabolism of the fetus, and increases the blood flow in the placenta. Through this research I have witnessed that caffeine can be very dangerous. These three points are some of the main dangers of caffeine during pregnancy.
5. Dietrich, K. N. "Human Fetal Lead Exposure: Intrauterine Growth, Maturation, and Postnatal Neurobehavioral Development." Fundamental and Applied Toxicology. 1991; 16: 17-19.
The manner in which a teratogen impacts the developing human may vary, though nicotine, caffine and medication consumption are all directly related to physical development. These are examples of habitual teratogens, each contributing to low birth weight and behavioral problems in adolescents. The level of influence of any given teratogen depends on many factors; the first, called the “threshold effect,” occurs when a relatively harmless teratogen in small quantity becomes toxic at a spe...
Both FAS and FAE are the results of the use of teratogens, which are nongenetic
The consumption of alcohol during any gestation of pregnancy equates into alcohol fetal consumption, which can cause detrimental physical and neurological defects. Infants born with the varying degrees of detrimental effects of prenatal alcohol ingestion can have an array of disorders which are described as Fetal Alcohol Spectrum Disorders [FASD] (May & Gossage, 2011a). The most profound effects of prenatal alcohol exposure are on the fetus’s brain development, which includes cognitive and behavioral effects that follow (Riley, Infante, & Warren, 2011). The incidence of FASD is believed to range from 0.2 to 2 per 1000 live births (Douzgou et al., 2012). Alcohol yields teratogentic effects in all the gestations, with peculiar features in relationship to the trimester of pregnancy in which the alcohol is consumed (Paoletti et al., 2013). Due to the fact that there is no exact dose-response relationship between the amount of alcohol ingested during the prenatal period and the extent of damage caused by alcohol in the fetus, abstinence from alcohol at conception and during pregnancy is strongly recommended (Paoletti et al., 2013).
Many studies have established that a developing organism is susceptible to exogenous and endogenous factors during certain stage of the organism’s development. The effects of ethyl alcohol or ethanol on the developing fetus, which manifest a variety of characteristic abnormalities, are collectively called Fetal alcohol Syndrome. Ethanol exposure to the fetus causes various malformation ranging from the cellular to the organismic levels with the eventual results frequently being different levels of mental retardation (3).
It seems that if fetuses are exposed to less than 100 mGy at any point in the pregnancy the outcome... ... middle of paper ... ...of IR exposures” (Soklov 15701). It is important for researchers to be able to study stem cells so that they can continue to find measures that can prevent cell death and malformations in mothers and fetuses. Many of the experts agree that the dose should be kept as low as possible with minimal exposure to the fetus of any age.
Evidence provided to support these claims of human and wildlife harm is largely from laboratory studies in which large doses are fed to test animals, usually rats or mice, and field studies of wildlife species that have been exposed to the chemicals mentioned above. In laboratory studies, high doses are required to give weak hormone activity. These doses are not likely to be encountered in the environment. However the process of bioaccumulation can result in top-level predators such as humans to have contaminants at levels many million times greater than the environmental background levels (Guilette 1994). In field studies, toxicity caused by endocrine disruption has been associated with the presence of certain pollutants. Findings from such studies include: reproductive disruption in starfish due to PCBs, bird eggshell thinning due to DDT, reproductive failure in mink, small penises in alligators due to DDT and dicofol (Guillette 1994, Colburn et al 1996). In addition, a variety of reproductive problems in many other species are claimed to be associated with environmental contamination although the specific causative agents have not been determined. One recent discovery that complicates the situation is that there are many naturally occurring "phytoestrogens", or chemicals of plant origin that exhibit weak estrogenic properties.
All drugs, legal or illegal, are considered to be harmful to the fetus and should be taken with caution and under the doctor’s direct orders only. Drugs can be anything as simple as a cigarette to a major substance like heroin and cocaine. Most mothers who do drugs during their pregnancy don’t think about the detrimental effects they could be causing to their baby. Any amount of these forbidden substances can leave an everlasting effect on the precious defenseless baby. Most women know that when you are pregnant your hormones vary greatly, but when a woman is pregnant it also ...
Meadows, Michelle. 2000. ¡§Tampon Safety, TSS Now Rare, but Women Still Should Take Care¡¨. March-April. FDA Consumer Magazine. http://www.fda.gov/fdac/features/2000/200_tss.html
“Fetal Alcohol Syndrome.” Alcohol as a Teratogen-Fetal Alcohol Syndrome (8 Dec. 2003): 5 April 2011. http://people.uwec.edu/pierceh/fas/fas...htm
Every woman when pregnant has a 3-5% chance of having a baby born with a birth defect, and these chances increase when the developing fetus/ embryos are exposed to teratogens, whether it’s intentional or unintentional (Bethesda (MD), 2006). Teratogens can cause severe birth defects, malformations, or terminate the pregnancy altogether (Jancárková, & Gregor, 2000). The placenta is known as an effective barrier from any detrimental pathogen that can potentially hurt the fetus. The timing of exposure of any teratogen is critical to the impact of prenatal development (Bethesda (MD), 2006). The most vulnerable time of the fetus for severe damage is during early pregnancy when all the major organ and central nervous system (CNS) are developing. Miscarriages have an important role in keeping a pregnancy from evolving when there is something serious going on with the developing fetus/embryo. Miscarriages are more common than we think and are the most familiar type of pregnancy loss (Bethesda (MD), 2006).
(Gilman, Breslau, Subramanian, Hitsman, & Koenen, 2008). Despite the warnings about the dangers of smoking while pregnant, some women still choose to smoke, which places themselves and their baby at risk for many health issues. Damage caused by smoking while pregnant During pregnancy, smoking can cause problems for a woman’s own health, including, ectopic pregnancy, vaginal bleeding, placental abruption, in which the placenta peels away, partially or almost completely, from the uterine wall before delivery; Placenta Previa, a low-lying placenta that covers part or all of the opening of the uterus (March of Dimes, 2011). Women that smoke expose their unborn baby to dangerous chemicals, like carbon monoxide, tar and nicotine.... ...
In recent years it has become clear that some environmental chemicals can cause risks to the developing embryo and fetus. Evaluating the developmental toxicity of environmental chemicals is now a prominent public health concern. The suspected association between TCE and congenital cardiac malformations warrants special attention because TCE is a common drinking water contaminant that is detected in water supplies throughout the U.S. and the world. There is a lot of concern about the clean up of toxic pollutants from the environment.