46, XY under-virilization and NR5A1 variants: Monocentric Indian experience and systematic review.

作者信息

Kumar Sandeep, Pandit Reshma, Sarathi Vijaya, Memon Saba Samad, Lila Anurag Ranjan, Thakkar Hemangini, Arya Sneha, Karlekar Manjiri, Dodamani Manjunath Havalappa, Barnabas Rohit, Patil Virendra A, Shah Nalini S, Bandgar Tushar R

机构信息

Department of Endocrinology, Seth G.S. Medical College, KEM Hospital, Parel, Mumbai 400012, Maharashtra, India.

Department of Endocrinology, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, India.

出版信息

Ann Endocrinol (Paris). 2025 Jul;86(4):101731. doi: 10.1016/j.ando.2025.101731. Epub 2025 Apr 23.

PURPOSE

NR5A1 variants are rare causes of 46,XY DSD with scarce literature from India. A systematic review of genotype-phenotype correlation is lacking. We aim to describe clinical, biochemical, histological, and genotype-phenotype correlation in 46,XY DSD with NR5A1 variants.

METHODS

Retrospective monocentric review of 11 genetically-proven probands and systematic review including these and 288 from the literature.

RESULTS

Eleven probands of 46,XY DSD with NR5A1 variants from our centre exhibited phenotypic variability, female-to-male social-gender change in ∼two-thirds (4/7), primary adrenal insufficiency (PAI) in one, and five novel variants. Systematic review included 299 probands (age: 4.0 [0.3-13] years; Sinnecker score: 4 [3-4]) with 218 different NR5A1 variants. Systematic review reported female-to-male gender-change (27/166, 16.3%), spontaneous puberty/pubertal virilization (37/86, 43%), DSD in siblings (25/299, 8.3%), paternal hypospadias (7/299, 2.3%), maternal premature ovarian insufficiency (19/299, 6.4%), bilateral labio-scrotal gonads (71/214, 33.2%), absent Mullerian structure (187/232, 80.6%), PAI (5/222, 2.2%) and gonadal malignancy (2/111, 1.8%) in probands. Serum LH was elevated in mini-puberty, pre-puberty, and peri/post-puberty in 35.4% (17/48), 46.2% (18/39), and 63.6% (49/77) patients, respectively. Germ cells were present in 55.6% (5/9) in mini-pubertal age and absent in 96.8% (61/63) at later age. Sertoli cells were reported normal in 100% (7/7), and 70.4% (38/54) in mini-pubertal and later ages, respectively. Presence of Mullerian structures and Sinnecker score of 4/5 were associated with LBD variants (54.5%vs. 30.6%, P=0.003) and protein start-lost/deletion (7.3% vs. nil, P=0.004), respectively.

CONCLUSIONS

46,XY DSD with NR5A1 variants is characterized by progressive decline in Sertoli and Leydig cell function, pubertal virilization, frequent partial gonadal dysgenesis and probably lower gonadal malignancy risk than gonadal dysgenesis of other origin. Further studies are warranted to validate these observations.