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Alcohol and the developing fetus--a review
1Department of Anatomy, Faculty of Medicine, University Malaya, 50603 Kuala Lumpur, Malaysia. joydeep@medicine.med.um.edu.my
Insights
Fetal alcohol syndrome (FAS) presents with varied physical and mental effects in children due to prenatal alcohol exposure. This review details FAS clinical features, experimental findings, and prevention strategies.
Area of Science:
- Teratology
- Developmental Biology
- Pediatrics
Background:
- Fetal alcohol syndrome (FAS) is a spectrum of developmental disorders caused by prenatal alcohol exposure.
- Clinical manifestations of FAS exhibit significant variability, impacting physical, cognitive, and behavioral development.
- Understanding FAS is crucial due to its increasing incidence and lifelong consequences.
Purpose of the Study:
- To comprehensively describe the diverse clinical features of Fetal Alcohol Syndrome.
- To review experimental findings from animal models and correlate them with human FAS cases.
- To discuss potential mechanisms of alcohol-induced teratogenicity and suggest preventive measures.
Main Methods:
- Literature review of clinical observations in humans.
- Analysis of data from animal and avian experimental models studying alcohol's effects on development.
- Discussion of proposed teratogenic mechanisms and prevention strategies.
Main Results:
- FAS is characterized by a range of physical anomalies, including craniofacial dysmorphies and growth deficits.
- Cognitive impairments, such as intellectual disability and behavioral problems, are common.
- Experimental models demonstrate alcohol's teratogenic potential, with findings correlating to human FAS presentations.
Conclusions:
- Fetal alcohol syndrome encompasses a wide spectrum of developmental abnormalities.
- Animal models provide valuable insights into FAS pathogenesis, despite ethical limitations in human studies.
- Prevention through maternal alcohol abstinence during pregnancy is paramount.
Abstract:
Fetal alcohol syndrome (FAS) is a collection of signs and symptoms seen in some children exposed to alcohol in the prenatal period. It is characterized mainly by physical and mental retardation, craniofacial anomalies and minor joint abnormalities. However, with the increasing incidence of FAS, there is a great variation in the clinical features of FAS. This article describes in detail these clinical features. Due to ethical reasons it is not possible to perform experiments on pregnant women. Hence to study the effects of alcohol, various animal and avian experimental models have been chosen. The various experimental findings and human correlation are described. The exact mechanism by which alcohol induces its teratogenic effects is not known. The possible mechanisms are discussed. Measures to prevent the occurrence of FAS have been suggested.