CAH 3. By which one of the following mechanisms dose the 21-hydroxylase deficiency develop ? (A) by gene conversion and gene recombination between CYP21 gene and CYP21P gene (pseudogene) during mitosis or meiosis. (B) by mutations in CYP21P gene of which the protein products interferes with the presentation of CYP21 gene. (C) by the deletion of all the introns of CYP21 gene. (D) by the conversion of CYP21 gene to CYP21P gene. 4. Which one of the following statements is TRUE about the treatment of 21-hydroxylase deficiency ? (A) Glucocorticoid should not be prescribed in the infants with the salt-wasting disease. (B) Laparoscopic adrenalectomy with low-dose steroid replacement is the treatment of choice. (C) Maternally administered dexamethasone early in the first trimester ameliorates genital ambiguity in affected female fetuses. (D) To ensure the effect of the treatment, 17-OH progesterone should be suppressed to normal range. -- 我无法道出她有多完美 如此天真 却又夹杂着如许智慧 如许的善心和如许的果断 这麽活泼的生命竟有如此安详的灵魂 --

※ 发信站: 批踢踢实业坊(ptt.cc) ◆ From: 218.166.209.219 ※ 编辑: Skylink 来自: 218.166.209.219 (02/28 14:05) ※ 编辑: Skylink 来自: 218.166.209.219 (02/28 14:08)