Journal of Peking University (Health Sciences) ›› 2022, Vol. 54 ›› Issue (4): 751-755. doi: 10.19723/j.issn.1671-167X.2022.04.027

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Successful assisted reproductive technology treatment for a woman with 46XX-17α-hydroxylase deficiency: A case report

Chun-mei ZHANG1,Rui YANG1,Rong LI1,Jie QIAO1,Hai-ning WANG2,Ying WANG1,*()   

  1. 1. Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
    2. Department of Endocrinology, Peking University Third Hospital, Beijing 100191, China
  • Received:2020-11-03 Online:2022-08-18 Published:2022-08-11
  • Contact: Ying WANG E-mail:wangying02114@bjmu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(81601243);the National Natural Science Foundation of China(81670701);the National Natural Science Foundation of China(81550022);the National Natural Science Foundation of China(81873833)

Abstract:

Congenital adrenal hyperplasia (CAH) is an autosomal recessive disorder, and 17α-hydroxylase deficiency (17α-OHD) is a rare type of CAH. 17α-OHD is caused by CYP17 gene mutation, resulting in partial or complete deficiency of 17α-hydroxylase, which in turn leads to the lack of cortisol and sex hormone production. The disease is manifested by excessive secretion of adrenocorticotropic hormone (ACTH), decreased levels of estradiol (E2) and androgen, elevated levels of proges-terone (P), follicle stimulating hormone (FSH), and luteinizing hormone (LH). Most of the patients are female in gender. According to the chromosome karyotype, 17α-OHD can be divided into 46XX and 46XY, of which 46XX is rarer. The clinical manifestations are hypokalemia and hypertension. Patients with 46XX-karyotype may have irregular menstruation, amenorrhea, and infertility. The severity of symptoms varies according to the degree of 17α-hydroxylase deficiency. Due to its untypical manifestation, the patients with partial 17α-OHD are more likely to be missed or misdiagnosed. Some 17α-OHD patients with 46, XX karyotypes have different degrees of development of internal and external reproductive organ and spontaneous menstrual cycle, so they may have the potential ovulation and fertility opportunities. However, due to the adverse effects of high serum P level on the endometrium, the patients would have infertility problems. To date, four cases from foreign countries have been reported about the infertility treatments among 46XX-17α-OHD patients, and two cases were mentioned in China without describing the process of treatments. Here, one case with partial 46XX-17α-OHD was diagnosed and successfully conceived and delivered after in vitro fertilization-embryo transfer (IVF-ET) in the Center for Reproductive Medicine, Peking University Third Hospital. Controlled ovarian stimulation with ultra-long protocol was initiated after glucocorticoid therapy was given to reduce P level. Ten oocytes were obtained and 6 embryos were cryopreserved. Frozen-thawed embryo transfer under hormonal replacement after gonadotropin releasing hormone agonist (GnRH-a) was carried out in an artificial cycle, and then the patient was successfully pregnant and delivered a healthy boy after 37 weeks of gestation by cesarean section. The treatment of this case suggests that patients with partial 46XX-17α-OHD can obtain oocytes and embryos with good quality. IVF combined with frozen-thawed embryo transfer under artificial cycle is an effective method for patients with partial 46XX-17α-OHD with infertility.

Key words: 17α-hydroxylase deficiency, Infertility, In vitro fertilization-embryo transfer

CLC Number: 

  • R711.6

Figure 1

CYP17A1 gene mutation sites in the female patient"

Table 1

The changes of gonadal hormones in the patient"

Date Day of menstruation FSH/(IU/L) LH/(IU/L) E2/(pmol/L) P/(nmol/L)
2016-03-12 M3 8.67 3.63 165 16
2018-11-14 M13 - - - 12.5
2019-02-14 M2 7.07 8.23 141 5.15
2019-03-13 M3 11.6 6.85 227 4.29
2019-04-10 28 days later after GnRH-a 5.73 0.56 < 73.4 < 0.64
2019-04-25 HCG trigger day - 0.36 602 12
2019-05-08 M2 8.87 1.19 148 2.47
2019-06-04 28 days later after GnRH-a - - < 73.4 < 0.64
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