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The mean epigenetic age of the five pure Syndrome X subjects was 6.7 years (standard error=1.0) which is not significantly different from the mean chronological age of 6.3 years (standard error=1.8). Notably, the oldest pure Syndrome X case had an epigenetic age of 14.5 years which was 3.2 years older than her true chronological age.
Fragile X syndrome (FXS) is a genetic neurodevelopmental disorder characterized by mild-to-moderate intellectual disability. [1] The average IQ in males with FXS is under 55, while about two thirds of affected females are intellectually disabled.
XYY syndrome, also known as Jacobs syndrome, is an aneuploid genetic condition in which a male has an extra Y chromosome. [1] There are usually few symptoms. [2] These may include being taller than average and an increased risk of learning disabilities. [1] [2] The person is generally otherwise normal, including typical rates of fertility. [1]
Macroorchidism is usually found in prepubertal boys with long-standing primary hypothyroidism, [2] boys with Van Wyk Grumbach Syndrome (VWGS), [7] and boys with fragile X syndrome (FXS). [3] When macroorchidism is considered, the testicular volume is measured using a prader orchidometer. [4]
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XX male syndrome, also known as de la Chapelle syndrome, is a rare intersex condition in which an individual with a 46,XX karyotype develops a male phenotype. [2] Synonyms for XX male syndrome include 46,XX testicular difference of sex development (or 46,XX DSD) [3] [4] [5] [6]
Emily Maynard Secretly Welcomed Baby No. 6, Shares Down Syndrome Diagnosis November 2, 2022 at 12:14 PM Emily Maynard and her husband, Tyler Johnson , have added another little one to their brood.
8-year-old boy with Down syndrome hailed as a hero for rescuing sister, 14, from raging house fire. Anna Young. December 4, 2024 at 6:59 PM.