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Ataei, Atiyeh, Eshraghi, Peyman, Eslahi, Atiyeh, Khazaei, Zeinab, Alerasool, Masoome, Jamali, Sara, Ghadamyari, Faranak, Mojarrad, Majid. (1401). Identification of a Rare Mutation in the SRD5A2 Gene in an Iranian Family with Sex Development Disorder. , 34(1), 5-8. doi: 10.22059/jsciences.2023.349896.1007760
Atiyeh Ataei; Peyman Eshraghi; Atiyeh Eslahi; Zeinab Khazaei; Masoome Alerasool; Sara Jamali; Faranak Ghadamyari; Majid Mojarrad. "Identification of a Rare Mutation in the SRD5A2 Gene in an Iranian Family with Sex Development Disorder". , 34, 1, 1401, 5-8. doi: 10.22059/jsciences.2023.349896.1007760
Ataei, Atiyeh, Eshraghi, Peyman, Eslahi, Atiyeh, Khazaei, Zeinab, Alerasool, Masoome, Jamali, Sara, Ghadamyari, Faranak, Mojarrad, Majid. (1401). 'Identification of a Rare Mutation in the SRD5A2 Gene in an Iranian Family with Sex Development Disorder', , 34(1), pp. 5-8. doi: 10.22059/jsciences.2023.349896.1007760
Ataei, Atiyeh, Eshraghi, Peyman, Eslahi, Atiyeh, Khazaei, Zeinab, Alerasool, Masoome, Jamali, Sara, Ghadamyari, Faranak, Mojarrad, Majid. Identification of a Rare Mutation in the SRD5A2 Gene in an Iranian Family with Sex Development Disorder. , 1401; 34(1): 5-8. doi: 10.22059/jsciences.2023.349896.1007760

Identification of a Rare Mutation in the SRD5A2 Gene in an Iranian Family with Sex Development Disorder

Journal of Sciences, Islamic Republic of Iran
مقاله 1، دوره 34، شماره 1، خرداد 2023، صفحه 5-8    اصل مقاله (701.54 K)
نوع مقاله: Original Paper
شناسه دیجیتال (DOI): 10.22059/jsciences.2023.349896.1007760
نویسندگان
Atiyeh Ataei1؛ Peyman Eshraghi2؛ Atiyeh Eslahi3؛ Zeinab Khazaei1؛ Masoome Alerasool4؛ Sara Jamali1؛ Faranak Ghadamyari1؛ Majid Mojarrad* 5
11 Medical Genetic Laboratory, Genetic Foundation of Khorasan Razavi, Mashhad, Islamic Republic of Iran
22 Department of Pediatric Endocrinology, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Islamic Republic of Iran
33 Department of Medical Genetics, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Islamic Republic of Iran
41 Medical Genetic Laboratory, Genetic Foundation of Khorasan Razavi, Mashhad, Islamic Republic of Iran 3 Department of Medical Genetics, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Islamic Republic of Iran
51 Medical Genetic Laboratory, Genetic Foundation of Khorasan Razavi, Mashhad, Islamic Republic of Iran 3 Department of Medical Genetics, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Islamic Republic of Iran 4 Medical Genetics Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Islamic Republic of Iran
چکیده
5 α-Reductase type 2 deficiency, caused by mutations in the SRD5A2
gene, leads to an autosomal recessive disorder of sex differentiation (DSD) in 46, XY persons.  A 2 years old female with ambiguous genitalia was referred to Genetic Foundation of Khorasan Razavi (GFKR), IRAN. Her secondary sex characteristics, level of sex hormones, the development of reproductive system and karyotype were assessed. Whole-exome sequencing (WES) was preformed to find the pathogenic genetic variations associated with ambiguous genitalia. Also, Sanger sequencing was used to verify the WES results in the patient. Segregation analysis was performed to confirm mutation in the parents and other relatives. Physical examination and ultrasonography data demonstrated that the patient have testis in the left labium majus and right groin but does not have a uterus or ovaries. Sex hormone examination revealed that hormone therapy was successful and the level of FSH, LH, testosterone, and dihydrotestostron (DHT) was 2.8 mlu/ml, 2.4 mlu/ml, 15ng/dl, 21pg/ml, respectively. Cytogenetic study showed 46XY compatible to normal male karyotype. According to WES result and Sanger sequencing a homozygote loss of function mutation (c.16C>T; p.Gln6Ter) in SRD5A2 has been detected. Segregation analysis confirmed the mutation in the family. Homozygote mutation in SRD5A2 is the main cause of disorders of sex development in this family.
کلیدواژه‌ها
SRD5A2؛ Testosterone؛ Dihydrotestostron؛ Sex Development Disorder
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