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Doctor insights on: Teratogenesis

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Dr. Richard Roberts
54 doctors shared insights

Teratogenesis (Overview)

Teratogenesis is an event in which a birth defect is formed in an embryo (very early pregnancy) or a fetus (the baby inside Mom). A teratogen is a substance that can cause birth defects, such as some drugs, some chemicals, or radiation. Teratogenesis can also be the result of genetic mutations.


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Does malnutrition impair fetal development?

Does malnutrition impair fetal development?

Yes: Malnutrition can definitely impair many parts of fetal development. One example is if there is a lack of folic acid, the fetal nervous system may not properly form. It is very important to be vigilant of nutrition during pregnancy and your doctor will guide you through it. ...Read more

Dr. Richard Roberts
54 doctors shared insights

Teratogenesis (Overview)

Teratogenesis is an event in which a birth defect is formed in an embryo (very early pregnancy) or a fetus (the baby inside Mom). A teratogen is a substance that can cause birth defects, such as some drugs, some chemicals, or radiation. Teratogenesis can also be the result of genetic mutations.


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Early pregnancy risks - tetratogens include marijuana?

Early pregnancy risks - tetratogens include marijuana?

Perhaps.: In early pregnancy marijuana is thought to interfer with neurodevelopment in the fetus. ...Read more

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What causes teratogenesis?

What causes teratogenesis?

Tertatogensis: long list of medications, infections, enviromental agents that can cause problems to the developing embryo. The general rule of thumb is not take medication during pregnancy before consulting with you OB and pharmacist. ...Read more

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Does conventional ivf increase risk of genetic defect of baby conceived?

Does conventional ivf increase risk of genetic defect of baby conceived?

IVF & genetic defect: There are genetic causes of infertility that could be passed on to the baby. Otherwise I don't think there is enough data to make conclusions - my opinion. ...Read more

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Is passive smoking affects the fetus?

Is passive smoking affects the fetus?

Yes: The inhaled chemicals and nicotine of passive smoke will enter the blood stream and act on the blood vessels of the placenta causing a reduction in blood flow.While not as intense as it would be for active smokers, the effect is there. There is evidence that smoke particles layer out in your nasal passages and continue to release toxic materials into the blood until they are removed. ...Read more

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Sequence of development after conception to fetus?

Sequence of development after conception to fetus?

A miracle. :): Here is a link with all the details .... http://php.med.unsw.edu.au/embryology/index.php?title=timeline_human_development. ...Read more

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When is the fetus most vulnerable to folic acid teratogens?

When is the fetus most vulnerable to folic acid teratogens?

Folic acid: Fetus is most vulnerable during the earliest times right after conception and first trimester when the neural tube is forming. ...Read more

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Can FAS (fetal alcohol syndrome) be inherited?

Can FAS (fetal alcohol syndrome) be inherited?

Yes and no.: The predisposition for alcoholism is inherited, however fetal alcohol syndrome only occurs when the fetus is exposed to maternally ingested alcohol during pregnancy and as such is not inherited, rather is a teratogen exposure that is entirely preventable. ...Read more

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Which drugs other than phenytoin and carbamazepine cause fetal hydantoin syndrome?

Which drugs other than phenytoin and carbamazepine cause fetal hydantoin syndrome?

Birth defects: This syndrone is specific to those drugs. That is, although you can find the individual defects in other conditions with different causes, when they are found in a baby from a mother that has taken phenytion, they are called fetal hydantoin syndrome. ...Read more

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Incest cause birth defects and other reproductive harm?

Incest cause birth defects and other reproductive harm?

Possible: In addition to the trauma of the incestous abuse, there is a higher risk of birth and congenital abnormalities in pregnacies and births resulting from incest due to the resulting gene loading in families with hereditary problems. ...Read more

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Is there any teratogenic cause of omphalocele?

Is there any teratogenic cause of omphalocele?

Unsure: Omphalocele is a failure of the return of the midgut from the yolk sac to the abdomen before 10 weeks of gestation. It can be associated with other malformations and syndromes. Best to ask the neonatologist and/or a geneticist for each individual case. The intestines are involved in 1/5000 births, with liver and intestines occurring in 1/10000 births. Immediate surgical repair is required. ...Read more

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Is there any research conducted into whether marijuana affects fertility?

Is there any research conducted into whether marijuana affects fertility?

Yes: There is not a lot of data showing that marijuana or thc directly effects female fertility but there is good evidence showing that it may interfere with spermatogenesis or the production of sperm, mainly numbers and motility. Hope this helps. ...Read more

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Does lsd cause birth defects?

Does lsd cause birth defects?

Controversial: But the overall tide of opinion is that the answer is "no." there was laboratory evidence that lsd could cause damage to germ cells - sperm and eggs - even long after it's ingestion. However, studies of this have not yielded consistent results. There are no human studies, and the vast majority of lsd users (esp in pregnancy) use other substances as well. Avoiding any drugs in pregnancy is best. ...Read more

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What is fetal hydantoin syndrome?

What is fetal hydantoin syndrome?

Dilantin: Fetal hydantoin syndrome can occur in infants exposed to Dilantin while in the uterus during pregnancy. The common features include hirsutism (they are hairy), growth restriction, mild mental retardation and congenital anomalies such as cleft lip & palate, wide set eyes and small ends of the fingers. ...Read more

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Can maternal diet during pregnancy influence offspring obesity risk?

Can maternal diet during pregnancy influence offspring obesity risk?

Yes! Via Epigenetics: Epigenetic changes are changes to the child's dna while still a fetus. Tehse changes are induced by the maternal diet. Increasingly epigenetic changes are being implicated in a host of common diseases occuring in offspring. These changes in the babies dna that do not involve changing the dna sequence but rather modify gene expression in children. ...Read more

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