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Yu H, Liu X, Nie Z, Xia Y. A Patient with Partial 17α-Hydroxylase Deficiency Initially Diagnosed with Asherman Syndrome and Pheochromocytoma. Int Heart J 2024; 65:159-164. [PMID: 38148007 DOI: 10.1536/ihj.22-407] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
This study present a case of a 49-year-old woman who suffered from resistant hypertension, hypokalemia, hypomenorrhea, and infertility. She was hospitalized 6 years earlier for hypomenorrhea and abdominal pain at the Xiamen Maternity and Child Health Hospital, where she was diagnosed with Asherman syndrome. During hospitalization, a computed tomography examination revealed an adrenal mass. She was referred to Xiamen University Affiliated Zhongshan Hospital for pheochromocytoma and underwent surgical resection of the left adrenal gland. The adrenal cortex adenoma was confirmed by pathological biopsy. Six years later, the patient also presented with hypertension and hypokalemia to our emergency department. A diagnosis of 17α-hydroxylase deficiency was established through the analysis of clinical and laboratory characteristics. The genetic analysis of CYP17A1 revealed compound heterozygous mutations, 1 of which was a mutation of c.1226 C>G, and the other c.297+2T>C.
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Pan P, Zheng L, Huang J, Chen X, Ni R, Zhang Q, Yang D, Li Y. Endocrine profiles and cycle characteristics of infertile 17α-hydroxylase/17,20-lyase Deficiency Patients undergoing assisted Reproduction Treatment: a retrospective cohort study. J Ovarian Res 2023; 16:111. [PMID: 37316894 DOI: 10.1186/s13048-023-01190-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 05/18/2023] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND 17α-hydroxylase/17,20-lyase deficiency (17-OHD) is a rare form of congenital adrenal hyperplasia caused by CYP17A1 gene variants. Female patients with 17-OHD demonstrate a broad clinical spectrum, including oligomenorrhea or amenorrhea and infertility, often as the sole manifestation. However, no spontaneous pregnancies in affected women have been reported. OBJECTIVE This retrospective cohort study aimed to explore the endocrine characteristics and assisted reproductive technique (ART) performance in women with 17-OHD. METHODS Five women were referred for primary infertility in a university-affiliated hospital over an eight-year period. The endocrine profiles and cycle characteristics during a total of nine cycles of ovarian stimulation and eight cycles of frozen-thawed embryo transfer (FET) were described in details. RESULTS Three cases had homozygous variants and two cases had compound heterozygous variants, including one novel missense variant (p.Leu433Ser) in the CYP17A1 gene. Despite dual-suppression of progesterone (P) production by glucocorticoid and gonadotropin releasing hormone agonist, gradually increased P level, relatively low estradiol concentrations and thin endometrium were observed, negating fresh embryo transfer. During FET cycles, appropriate treatment resulted in low serum P levels and adequate endometrial thickness, leading to four live births. CONCLUSIONS Our findings demonstrate that continuous elevation of serum P during follicular growth impairs endometrial receptivity, the likely cause of female infertility in 17-OHD. Therefore, female infertility caused by 17-OHD is suggested as an indication for freeze-all strategy, with promising reproductive prognoses following segmented ovarian stimulation and FET treatment.
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Affiliation(s)
- Ping Pan
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Lingyan Zheng
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Jia Huang
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Xiaoli Chen
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Renmin Ni
- Department of Reproductive Medicine, Kunming Angel Women's and Children's Hospital, Kunming, Yunnan, China
| | - Qingxue Zhang
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Dongzi Yang
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China.
| | - Yu Li
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China.
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Albu AI, Iancu ME, Albu DN. Successful Treatment of Infertility in a Patient with Probable 17 Hydroxylase Deficiency and Particularities of Association with Adrenal Autoimmunity—A Case Report and Review of the Literature. Life (Basel) 2023; 13:life13040921. [PMID: 37109450 PMCID: PMC10143317 DOI: 10.3390/life13040921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/11/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
Congenital adrenal hyperplasia (CAH) due to 17-hydroxylase deficiency (17OHD) is a rare disease accounting for less than 1% of cases of CAH. In female patients, fertility is severely affected mainly due to constantly increased progesterone affecting endometrium receptivity and implantation. The optimal treatment for infertility in these patients is not clearly established, with only a few recent case reports of successful pregnancies available in the literature. Hereby, we present the case of an infertile female patient with 17OHD who obtained pregnancy through an in vitro fertilization (IVF) freeze-all strategy and particularities of association with adrenal autoimmunity. A 32-year-old infertile female patient was referred for infertility evaluation and treatment. She had normal sex development and menstrual history with oligomenorrhea alternating with normal menstrual cycles. During the evaluation, a reduced ovarian reserve and obstruction of the left fallopian tube were identified, and IVF treatment was recommended. During a controlled ovarian stimulation for IVF, increased values of serum progesterone were observed; thus, all the embryos were frozen and additional tests were performed. Increased values of 17-hydroxyprogesteron, 11-deoxycorticosteron, and adrenocorticotropic hormones in association with low basal and stimulated serum cortisol, testosterone, androstenedione, and dehydroepiandrosterone sulfate were found, supporting the presence of 17OHD. She started treatment with oral hydrocortisone given at 20 mg/day but, because follicular phase serum progesterone remained high, hydrocortisone was replaced by an oral dexamethasone treatment of 0.5 mg/day, followed by the normalization of serum progesterone. A thawed blastocyst was transferred after preparation with oral estradiol at 6 mg/day and intravaginal progesterone at 600 mg/day under continuous suppression of endogenous progesterone production with a gonadotropin-releasing hormone agonist and oral dexamethasone. The patient became pregnant and delivered two healthy girls at term. One year after delivery, the presence of 21-hydroxylase antibodies was detected, which might explain the particularities of adrenal steroids in our patient. Our case report demonstrates that a patient with 17OHD can become pregnant through IVF and the transfer of thawed embryos in a subsequent cycle under continuous suppression of adrenal and ovarian progesterone production.
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Affiliation(s)
- Alice Ioana Albu
- Department of Endocrinology, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Endocrinology Department, Elias Hospital, 011461 Bucharest, Romania
- Correspondence:
| | | | - Dragos Nicolae Albu
- Department of Obstetrics and Gynecology, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania;
- Reproductive Medicine Department, Medlife Hospital, 010719 Bucharest, Romania
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Zhang D, Yao F, Luo M, Wang Y, Tian T, Deng S, Tian Q. Clinical characteristics and molecular etiology of partial 17α-hydroxylase deficiency diagnosed in 46,XX patients. Front Endocrinol (Lausanne) 2022; 13:978026. [PMID: 36589849 PMCID: PMC9797673 DOI: 10.3389/fendo.2022.978026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 11/21/2022] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION Complete 17α-hydroxylase deficiency (17OHD) is relatively common, with typical juvenile female genitalia, severe hypertension, hypokalemia, and the absence of sexual development, but partial (or non-classical) 17OHD (p17OHD) is extremely rare. The p17OHD patients can present with a broad spectrum of symptoms in 46,XX karyotype including various degree of spontaneous breast development after puberty, recurrent ovarian cysts, oligomenorrhea and infertility depending on specific gene mutations and other influencing factors. METHODS This paper is a retrospective analysis of p17OHD cases from 1997 to 2021 in a Chinese tertiary hospital. Eight patients were recruited from unrelated families according to clinical data. Genotypes of patients were determined by sequencing the CYP17A1 genes. Clinical characteristics were summarized based on manifestations, hormone profiles, and responses to treatments. RESULTS All seven post-pubertal patients had abnormal menses. All patients had enlarged multilocular ovaries, and six (6/8) had a history of ovarian cystectomy prior to a definite diagnosis of p17OHD. All eight patients' sex hormone levels were in accord to hypogonadism with mildly elevated follicle-stimulating hormone levels, and oral contraceptives effectively suppressed the ovarian cysts. Of the four patients who underwent plasma renin activity tests, all showed results below the reference range. Fourteen alleles with a CYP17A1 mutation were found. Exon 6 was the most frequent mutation site (5/14), and four out of these five mutations were c.985_987delTACinsAA, being the most common one. In Case 2, c.1220dupA was a newly reported mutation of CYP17A1. CONCLUSIONS 46,XX p17OHD patients were born with highly fragile ovarian reserve due to diverse mutations of CYP17A1. However, their multi-ovarian cysts can be managed conservatively for fertility preservation. This study focuses on p17OHD in 46,XX by locating the complex genetic causes in novel mutations, summarizing the puzzling spectrum of clinical manifestations, and illustrating the significance of fertility preservation in these scarce cases.
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Affiliation(s)
- Duoduo Zhang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Fengxia Yao
- Clinical Research Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Min Luo
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Yanfang Wang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Tiffany Tian
- Department of Biology, Emory College of Arts and Sciences, Atlanta, GA, United States
| | - Shan Deng
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Qinjie Tian
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
- Center for Rare Diseases Research, Chinese Academy of Medical Sciences, Beijing, China
- *Correspondence: Qinjie Tian,
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Xia Y, Shi P, Xia J, Zhang H, Xu L, Kong X. Novel mutations of the CYP17A1 gene in four Chinese 46,XX cases with partial 17a-hydroxylase/17,20-lyase deficiency. Steroids 2021; 173:108873. [PMID: 34097983 DOI: 10.1016/j.steroids.2021.108873] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 05/04/2021] [Accepted: 05/31/2021] [Indexed: 12/13/2022]
Abstract
The condition 17a-Hydroxylase/17,20-lyase deficiency (17-OHD) is a rare kind of congenital adrenal hyperplasia (CAH) characterized by failure to synthetize cortisol, adrenal androgens and gonadal steroids. Partial deficiency is much rarer, presenting with subtler symptoms. In this study, we summarized the clinical characteristics and identified the underlying gene mutation in four Chinese 46,XX patients with partial 17-OHD. Mutational analysis of the CYP17A1 gene was performed by polymerase chain reaction (PCR) and Sanger sequencing. Clinical and hormonal findings in these patients were consistent with typical manifestations of partial 17-OHD. All patients were found to have a compound heterozygous mutation of the CYP17A1 gene, with five mutations identified. Among them, c.887 T > C(p. I296T), c.1019G > A(p. R340H) and c.1346G > A(p. R449H) were novel missense mutations. In conclusion, we identified three novel missense mutations of the CYP17A1 gene from four patients with partial 17-OHD deficiency. Genotype-phenotype correlation analysis revealed that these novel mutations can lead to partial 17-OHD. Our findings thus provide novel insight into the clinical evaluations and molecular basis of 17-OHD.
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Affiliation(s)
- Yanjie Xia
- Genetics and Prenatal Diagnosis Center, The First Affiliated Hospital of Zhengzhou University, Henan Engineering Research Center for Gene Editing of Human Genetic Disease, Zhengzhou, China
| | - Panlai Shi
- Genetics and Prenatal Diagnosis Center, The First Affiliated Hospital of Zhengzhou University, Henan Engineering Research Center for Gene Editing of Human Genetic Disease, Zhengzhou, China
| | - Junke Xia
- Genetics and Prenatal Diagnosis Center, The First Affiliated Hospital of Zhengzhou University, Henan Engineering Research Center for Gene Editing of Human Genetic Disease, Zhengzhou, China
| | - Huijuan Zhang
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lijun Xu
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiangdong Kong
- Genetics and Prenatal Diagnosis Center, The First Affiliated Hospital of Zhengzhou University, Henan Engineering Research Center for Gene Editing of Human Genetic Disease, Zhengzhou, China.
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Sousa Paredes SCD, Marques O, Alves M. Partial deficiency of 17α-hydroxylase: a rare cause of congenital adrenal hyperplasia. BMJ Case Rep 2019; 12:12/12/e230778. [PMID: 31801776 DOI: 10.1136/bcr-2019-230778] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Congenital adrenal hyperplasia (CAH) due to 17α-hydroxylase deficiency, a rare CAH syndrome, is characterised by failure to synthetise cortisol, adrenal androgens and gonadal steroids. The partial deficiency is much rarer, presenting with subtler symptoms. Failure to reach a proper diagnosis causes inappropriate hypertension treatment and impairs the development of secondary sexual characteristics. We report a case of a 30-year-old woman transferred to an endocrinology clinic for evaluation of autoimmune thyroiditis. She was started on oral contraceptives at the age of 13 due to oligomenorrhea and presented underdeveloped pubic and axillar hair and Tanner stage 3 breast development. Biochemical tests evidenced very low androgens levels and genetic analysis confirmed a CAH due to 17α-hydroxylase deficiency. Partial 17α-hydroxylase deficiency is a rare clinical entity, nevertheless, it should be included in the differential diagnosis of menstrual disorders.
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Affiliation(s)
| | | | - Marta Alves
- Endocrinology, Hospital de Braga, Braga, Portugal
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Sarathi V, Reddy R, Atluri S, Shivaprasad C. A challenging case of primary amenorrhoea. BMJ Case Rep 2018; 2018:bcr-2018-225447. [PMID: 30002216 DOI: 10.1136/bcr-2018-225447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The differential diagnosis of a girl presenting with primary amenorrhoea includes numerous conditions. Often, patients of 46XY disorder of sex development (DSD) are reared as girl and present with primary amenorrhoea. Their further evaluation to reach the final diagnosis is often a great challenge. In this article, we report a challenging case of 46XY DSD presented with primary amenorrhoea. Patient had spontaneous breast development which initially confused the diagnosis to complete androgen insensitivity syndrome. However, low testosterone suggested against this possibility and further evaluation revealed hormonal findings consistent with 17α hydroxylase/17,20 lyase (CYP17A1) deficiency. Patient had 46XY karyotype and in consistence with hormonal findings patient was found to have a likely pathogenic homozygous c.1345C>T (p.Arg449Cys) variation in exon 8 of CYP17A1.
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Affiliation(s)
- Vijaya Sarathi
- Endocrinology, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, Karnataka, India
| | - Ramesh Reddy
- General Surgery, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, Karnataka, India
| | - Sridevi Atluri
- Endocrinology, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, Karnataka, India
| | - Channabasappa Shivaprasad
- Endocrinology, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, Karnataka, India
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Wu C, Fan S, Qian Y, Zhou Y, Jin J, Dai Z, Jiang L. 17α-HYDROXYLASE/17, 20-LYASE DEFICIENCY: CLINICAL AND MOLECULAR CHARACTERIZATION OF EIGHT CHINESE PATIENTS. Endocr Pract 2017; 23:576-582. [PMID: 28225307 DOI: 10.4158/ep161610.or] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE 17α-hydroxylase/17, 20-lyase deficiency (17OHD) is caused by mutations in the cytochrome P450 17A1 (CYP17A1) gene. To better understand 17OHD, a rare disease, we described the clinical features and performed CYP17A1 gene analysis in 8 affected Chinese patients. METHODS Patients with complete (7/8) or partial (1/8) 17OHD were derived from 6 families. The diagnosis was established according to their clinical, biochemical, hormonal, and radiological characteristics. Long-term follow-up of some patients was also designed. RESULTS Patients with 17OHD suffered from varying degrees of hypokalemia and hypertension. Symptoms in female patients with partial 17OHD manifested as secondary amenorrhea, recurrent ovarian cysts, elevated estradiol level, and lower follicle-stimulating hormone and luteinizing hormone levels; primary amenorrhea was typical in patients with complete 17OHD. Adrenal masses and decreased bone mineral density (BMD) were discovered in 2 patients, respectively. During long-term follow-up, 4 patients developed low BMD, while 3 individuals underwent respiratory infections and recurrent urinary tract infections. CYP17A1 gene analysis revealed 7 different kinds of mutation, including 1 novel mutation, L266V. CONCLUSION The clinical characteristics of partial 17OHD were different from those of complete 17OHD. Low BMD and infections were common in patients with 17OHD on long-term steroid treatment. Seven mutations were identified in the CYP17A1 gene, and 1 was novel. ABBREVIATIONS ACTH = adrenocorticotropic hormone BMD = bone mineral density CAH = congenital adrenal hyperplasia CT = computed tomography DEXA = dual-energy X-ray absorptiometry DEX = dexamethasone 17OHD = 17α-hydroxylase/17, 20-lyase deficiency.
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Carvalho LCD, Brito VN, Martin RM, Zamboni AM, Gomes LG, Inácio M, Mermejo LM, Coeli-Lacchini F, Teixeira VR, Gonçalves FT, Carrilho AJF, Del Toro Camargo KY, Finkielstain GP, Taboada GF, Frade Costa EM, Domenice S, Mendonca BB. Clinical, hormonal, ovarian, and genetic aspects of 46,XX patients with congenital adrenal hyperplasia due to CYP17A1 defects. Fertil Steril 2016; 105:1612-9. [DOI: 10.1016/j.fertnstert.2016.02.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 02/04/2016] [Accepted: 02/04/2016] [Indexed: 12/13/2022]
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Lee SJ, Song JE, Hwang S, Lee JY, Park HS, Han S, Rhee Y. Untreated Congenital Adrenal Hyperplasia with 17-α Hydroxylase/17,20-Lyase Deficiency Presenting as Massive Adrenocortical Tumor. Endocrinol Metab (Seoul) 2015; 30:408-13. [PMID: 26248854 PMCID: PMC4595368 DOI: 10.3803/enm.2015.30.3.408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 02/03/2015] [Accepted: 02/27/2015] [Indexed: 11/11/2022] Open
Abstract
Congenital adrenal hyperplasia (CAH) with 17α-hydroxylase/17,20-lyase deficiency is usually characterized by hypertension and primary amenorrhea, sexual infantilism in women, and pseudohermaphroditism in men. hypertension, and sexual infantilism in women and pseudohermaphroditism in men. In rare cases, a huge adrenal gland tumor can present as a clinical manifestation in untreated CAH. Adrenal cortical adenoma is an even more rare phenotype in CAH with 17α-hydroxylase/17,20-lyase deficiency. A 36-year-old female presented with hypertension and abdominal pain caused by a huge adrenal mass. Due to mass size and symptoms, left adrenalectomy was performed. After adrenalectomy, blood pressure remained high. Based on hormonal and genetic evaluation, the patient was diagnosed as CAH with 17α-hydroxylase/17,20-lyase deficiency. The possibility of a tumorous change in the adrenal gland due to untreated CAH should be considered. It is important that untreated CAH not be misdiagnosed as primary adrenal tumor as these conditions require different treatments. Adequate suppression of adrenocorticotropic hormone (ACTH) in CAH is also important to treat and to prevent the tumorous changes in the adrenal gland. Herein, we report a case of untreated CAH with 17α-hydroxylase/17,20-lyase deficiency presenting with large adrenal cortical adenoma and discuss the progression of adrenal gland hyperplasia due to inappropriate suppression of ACTH secretion.
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Affiliation(s)
- Su Jin Lee
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Je Eun Song
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sena Hwang
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Ji Yeon Lee
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hye Sun Park
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Seunghee Han
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Yumie Rhee
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
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Lee ES, Kim M, Moon S, Jekarl DW, Lee S, Kim Y, Choi GY. A new compound heterozygous mutation in the CYP17A1 gene in a female with 17α-hydroxylase/17,20-lyase deficiency. Gynecol Endocrinol 2013; 29:720-3. [PMID: 23772786 DOI: 10.3109/09513590.2013.798276] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Congenital adrenal hyperplasia due to 17α-hydroxylase/17,20-lyase deficiency (OMIM #202110) is a rare autosomal recessive disorder, which is caused by mutations of the CYP17A1 gene located on chromosome 10q24.3. It has been reported that the type of mutation of the CYP17A1 gene was associated with the extent of 17α-hydroxylase/17,20-lyase deficiency, and the prevalence of common mutation was different among ethnic groups. CASE A 21-year-old Korean female presented with primary amenorrhea and sexual infantilism, and intermittent hypokalemic episodes. Laboratory test was consistent with hypergonadotropic hypogonadism. The karyotype was 46,XX[20]. Genomic DNA was extracted from peripheral blood leukocytes. All the eight exons of the CYP17A1 gene including flanking regions of introns were amplified by PCR. The mutations of the CYP17A1 gene were detected by direct sequencing. A compound heterozygous mutation was identified; one allele had a missense mutation of c.1118A>T (p.His373Leu), which was reported previously and induced the complete loss of both 17α-hydroxylase/17,20-lyase activity. This mutation has been known to be one of the common mutation types in East Asia. The other allele had a novel 1-bp deletion c.1148delA causing frameshift, premature termination codon (p.Glu383fs) and induced truncated enzymes. CONCLUSION Our experience for stepwise clinical, laboratory and molecular approach would be helpful to diagnose these patients accurately and understand the genetic events in 17α-hydroxylase/17,20-lyase deficiency patients.
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Affiliation(s)
- Eun Sil Lee
- Department of Obstetrics and Gynecology, Soonchunhyang University, Seoul, Korea
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