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Teratology and Hazards to Prenatal Development

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Mary Joy Yater

on 8 September 2013

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Transcript of Teratology and Hazards to Prenatal Development

Teratology and Hazards to Prenatal Development
3. Environmental Hazards
4. Other maternal Factors such as following:
1. Prescription and Nonprescription Drugs
Prescription drugs: Antibiotics, some antidepressants, some hormones, and Accutane, Thalimode.
Nonprescription drugs: Diet pills, aspirin, and coffee.

Psychoactive Drugs
Psychoactive drugs: These includes nicotine, caffeine and illegal drugs such as marijuana, cocaine and heroin.
Act on the nervous system to alter states of consciousness, modify perceptions, and change moods.

Psychoactive drugs: Illegal drugs

Cocaine: Children are likely to develop neurological and cognitive deficits.
Marijuana: Possible deficits in memory and information processing.
Heroin: Newborns experience withdrawal symptoms; later behavioral problems and attention deficits

Rubella (German Measles)
Infants were born with malformations, including mental retardation, blindness, deafness and heart problem(Santrock, 2002)

Damages organs after they formed. These damages include eye lesions, which can cause blindness, and skin lesions. When syphilis is present at birth, other problems involving the central nervous system and gastrointestinal tract, can develop.

Genital Herpes
About one third of babies delivered through a genital herpes infected birth canal die: another one fourth become brain damaged.
A mother can infect her child in three ways: 1) During gestational across through placenta,2) during delivery through contact with maternal blood and fluids,3) postpartum (after birth) through breast-feeding.

Greek word “tera” which means “monster”
is the field that investigates the causes of congenital(birth) defects. A teratogen is what causes birth defects.
Alcohol: Even moderate or heavy drinking consumption during pregnancy can result in Fetal Alcohol Syndrome (FAS), a cluster of abnormalities such as facial deformities, defective limbs, face, and heart, below average intelligence, and mental retardation

AIDS(Acquired Immune Deficiency Syndrome
Acquired means you can get infected with it; Immune Deficiency means a weakness in the body’s system that fights diseases. Syndrome means a group of health problems that make up a disease.
AIDS is caused by a virus called HIV, the Human Immunodeficiency Virus. If you get infected with HIV, your body will try to fight the infection. It will make “antibodies,” special molecules to fight HIV.

Smoking cigarettes is a linked to a number of prenatal development issues:
Preterm births and low birth weights.
Fetal and neonatal death
Respiratory Problems
SIDS(Sudden Infant Death Syndrome)
Cardiovascular Problems
Development of ADHD (Attention Deficit Hyperactivity Disorder)
Coffee-to have preterm deliveries and newborns with lower birth weight compared to their counterparts who did not drink caffeinated coffee.

Examples of where we consume caffeine include tea,coffee,soda, and chocolate.
5. Paternal Factors
Father’s exposure to lead, radiation, certain pesticides and petrochemicals may cause abnormalities in sperm that lead to miscarriage or diseases such as childhood cancer.
As in the case of older mother’s, older father’s also may place their offspring at risk for certain defects.

Prepared by: MARY ANNE B. YATER

Stress & Anxiety
Environmental Hazards
Bath tub
Maternal Nutrition
Chromosomal Abnormalities
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