Identify the correct statements about Lesch-Nyhan syndrome. There is more than one correct statement.
a) Some symptoms of Lesch-Nyhan syndrome include involuntary movements and self-mutilation.
b) Gout causes Lesch-Nyhan syndrome.
c) Uric acid is produced in excess, and acts as a strong antioxidant.
d) This syndrome allows for purine nucleotide production only via the de novo pathway.
e) This syndrome is caused by a deficiency in hypoxanthine-guaninephosphoribosyltransferase (HGPRT).