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酮合成酶缺乏症,提示该患儿只存在盐皮质激素合 mechanisms[J]. J Biol Chem,1996,271(15):9033-
成障碍。该疾病是 CAH 的一种极为罕见的特殊类 9038
型,为常染色体隐性遗传性疾病,是由位于8号染色 [5] CLARK A J,MCLOUGHLIN L,GROSSMAN A. Familial
体长臂上的醛固酮合成酶 CYP11B2 基因突变所 glucocorticoid deficiency associated with point mutation
in the adrenocorticotropin receptor[J]. Lancet,1993,341
致 [11-12] ,从而导致醛固酮合成酶活性缺乏或降低,影
(8843):461-462
响了醛固酮的合成代谢途径。临床表现有反复呕
[6] 罗媛媛,王志芳,栗夏莲. 家族性糖皮质激素缺乏症研
吐、腹泻、脱水、体重不增等盐皮质激素缺乏的症
究进展[J]. 中华内分泌代谢杂志,2019,35(10):888-
状,实验室检查有低钠低氯高钾血症,代谢性酸中 892
毒,高肾素低醛固酮血症。发病年龄越小症状越明 [7] GANTZ I,TASHIRO T,BARCROFT C,et al. Localiza⁃
显,随着年龄的增长,一方面从食物中摄入的钠增 tion of the genes encoding the melanocortin⁃2(adrenocor⁃
加,另一方面肾小管对盐皮质激素耐受性下降,临 ticotropic hormone)and melanocortin⁃3 receptors to chro⁃
床表现可逐渐好转 [13-14] 。此类疾病因临床罕见需与 mosomes 18p11.2 and 20q13.2⁃Q13.3 by fluorescence in
假性醛固酮减少及其他类型肾上腺疾病相鉴别,避 situ hybridization[J]. Genomics,1993,18(1):166-167
[8] CHUNG T T,WEBB T R,CHAN L F,et al. The majority
免造成误诊漏诊。
of adrenocorticotropin receptor(melanocortin 2 receptor)
对于肾上腺疾病的治疗,均采用激素替代治
mutations found in familial glucocorticoid deficiency type
疗。病例 1 患儿只需进行糖皮质激素终身替代治
1 lead to defective trafficking of the receptor to the cell
疗,剂量遵循个体化原则,一般无需补充盐皮质激 surface[J]. J Clin Endocrinol Metab,2008,93(12):
素。儿童首选醋酸氢化可的松,以保证儿童正常生 4948-4954
长发育,剂量为10~12 mg/(m ·d)。病例2主要是口 [9] AZA⁃CARMONA M,BARREDA⁃BONIS A C,GUERRE⁃
2
服或静脉补钠及盐皮质激素(9α氟氢可的松)替代 RO ⁃ FERNÁNDEZ J,et al. Familial glucocorticoid defi⁃
治疗,剂量为 0.05~0.10 mg/d,严重失盐者可增至 ciency due to compound heterozygosity of two novel
0.20 mg/d。治疗过程中需监测电解质及血压情况, MC2R mutations[J]. J Pediatr Endocrinol Metab,2011,
及时调整用药剂量。 24(5/6):395-397
[10] ABUDUXIKUER K,LI Z D,XIE X B,et al. Novel mela⁃
综上所述,肾上腺疾病病因复杂,表现形式多
nocortin 2 receptor variant in a Chinese infant with famil⁃
样,孤立性一种激素缺乏临床罕见,单纯依据临床
ial glucocorticoid deficiency type 1,case report and re⁃
表现明确其病因有一定难度,确诊还需依靠基因检 view of literature[J]. Front Endocrinol(Lausanne),2019,
测。临床医生需增加对该类疾病的认识,以期早期
10:359
诊断、早期治疗。 [11] GUCEV Z,TASIC V,POP⁃JORDANOVA N,et al. Aldo⁃
[参考文献] sterone synthase deficiency typeⅡ with hypospadias[J].
Indian Pediatr,2012,49(4):318-320
[1] GUCEV Z,TASIC V,POP⁃JORDANOVA N,et al. Aldo⁃
[12] ÜSTYOL A,ATABEK M E,TAYLOR N,et al. Corticoste⁃
sterone synthase deficiency typeⅡ with hypospadias[J].
rone methyl oxidase deficiency type 1 with normokalemia
Indian Pediatr,2012,49(4):318-320
in an infant[J]. J Clin Res Pediatr Endocrinol,2016,8
[2] SHEPARD T H,LANDING B H,MASON D G. Familial
(3):356-359
Addison’s disease;case reports of two sisters with corti⁃
[13] KONDO E,NAKAMURA A,HOMMA K,et al. Two novel
coid deficiency unassociated with hypoaldosteronism[J].
mutations of the CYP11B2 gene in a Japanese patient
AMA J Dis Child,1959,97(2):154-162 with aldosterone deficiency type 1[J]. Endocr J,2013,60
[3] YEH J K,EVANS J F,NIU Q T,et al. A possible role for (1):51-55
melanocortin peptides in longitudinal growth[J]. J Endo⁃ [14] STAPENHORST L. 9alpha⁃Fluorohydrocortisone therapy
crinol,2006,191(3):677-686 in aldosterone synthase deficiency[J]. Pediatr Nephrol,
[4] GABBITAS B,PASH J M,DELANY A M,et al. Cortisol 2005,20(6):839
inhibits the synthesis of insulin⁃like growth factor⁃bind⁃ [收稿日期] 2022-01-02
ing protein ⁃ 5 in bone cell cultures by transcriptional (责任编辑:蒋 莉)