Drug-induced liver diseases are diseases of the liver that are caused by physician-prescribed medications, over-the-counter medications, vitamins, hormones, herbs, illicit (recreational) drugs, and environmental toxins.
Examples of chromosomal disorders. Some of the most common chromosomal abnormalities include: 1  Down's syndrome or trisomy 21. 2  Edward's syndrome or trisomy 18.3  Patau syndrome or trisomy 13. 4  Cri du chat syndrome or 5p minus syndrome (partial deletion of short arm of chromosome 5).ome of the most common chromosomal abnormalities include: 1  Down's syndrome or trisomy 21. 2  Edward's syndrome or trisomy 18. 3  Patau syndrome or trisomy 13.
On comparison with a normal karyotype, major abnormalities can be discovered in a suspect sample. Irregular numbers of chromosomes and missing or deformed chromatids are easily observed. Many types of gross chromosomal abnormalities have been connected to specific medical syndromes, including mental retardation.