| 3β-hydroxysteroid dehydrogenase deficiency |
an autosomal recessive disorder of steroidogenesis causing several forms of one type of congenital adrenal hyperplasia (type II): the classic forms are salt-wasting and the milder non-salt-wasting, and the nonclassic form is late onset. The enzyme deficiency is present in adrenals and gonads; pathways to cortisol, sex steroids, and aldosterone are blocked; and pregnenolone, 17α-hydroxypregnenolone, and dehydroepiandrosterone are elevated in plasma. Males affected during fetal life are pseudohermaphroditic; both sexes have slight postnatal virilization. Most common is the mildest form (late onset) but of the classic forms, salt-wasting is predominant. See also table at hyperplasia.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
|---|---|
| 3,3-dichlorobenzidine |
a gray to purple crystalline solid used in the manufacture of dyes and plastics; it is carcinogenic.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
| 3,4-benzpyrene |
benzo[a]pyrene.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
| 3,4-dihydroxyphenylalanine |
dopa.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
| 3,4-dihydroxyphenylglycol |
a metabolite of norepinephrine; levels may be elevated in pheochromocytoma.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|