[Height in Turner's syndrome: correlation with parents' height]

Area of Science:

• Genetics and Human Development
• Reproductive Endocrinology

Context:

• Turner's syndrome is a chromosomal condition affecting females, characterized by the absence of one X chromosome.
• Maternal and paternal contributions to chromosomal abnormalities are crucial in understanding genetic disorders.

Purpose:

• To investigate the correlation between parental height and the occurrence of Turner's syndrome.
• To explore potential differences in the paternal versus maternal origin of chromosomal deletions in Turner's syndrome.

Summary:

• A study of 64 Turner's syndrome cases revealed a stronger correlation with maternal height (r=0.607) than paternal height (r=0.28).
• This suggests a potential paternal origin for the deleted gonosome in Turner's syndrome.
• Additionally, 6.4% of Turner's patients had mothers with below-average adult height (-2 DS), compared to 3% in the general population.

Impact:

• Provides insights into the etiology of Turner's syndrome, potentially guiding genetic counseling.
• Highlights the role of parental genetic contributions in specific chromosomal disorders.
• May inform future research on the mechanisms of X chromosome loss or deletion.