ISSN 1662-4009 (online)

ey0017.6-8 | Differences/Disorders of Sex Development: Genetics | ESPEYB17

6.8. Pathogenic variants in the DEAH-box RNA helicase DHX37 are a frequent cause of 46,XY gonadal dysgenesis and 46,XY testicular regression syndrome

K McElreavey , A Jorgensen , C Eozenou , T Merel , J Bignon-Topalovic , DS Tan , D Houzelstein , F Buonocore , N Warr , RGG Kay , M Peycelon , JP Siffroi , I Mazen , JC Achermann , Y Shcherbak , J Leger , A Sallai , JC Carel , L Martinerie , R Le Ru , GS Conway , B Mignot , L Van Maldergem , R Bertalan , E Globa , R Brauner , R Jauch , S Nef , A Greenfield , A Bashamboo

To read the full abstract: Genet Med. 2020, Jan; 22: 150-9. doi: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6944638/pdf/41436_2019_Article_606.pdfMassive parallel sequencing of 145 46,XY DSD patients revealed 13 individuals with heterozygous missense pathogenic variants in the RNA helicase DHX37, explaining 11% of cases of 46,XY gonadal d...

ey0021.7-5 | Clinical Guidance and Studies | ESPEYB21

7.5. Rare variants in the MECP2 gene in girls with central precocious puberty: a translational cohort study

APM Canton , FR Tinano , L Guasti , LR Montenegro , F Ryan , D Shears , ME de Melo , LG Gomes , MP Piana , R Brauner , R Espino-Aguilar , A Escribano-Munoz , A Paganoni , JE Read , M Korbonits , CE Seraphim , SS Costa , AC Krepischi , AAL Jorge , A David , LR Kaisinger , KK Ong , JRB Perry , AP Abreu , UB Kaiser , J Argente , BB Mendonca , VN Brito , SR Howard , AC Latronico

Brief Summary: This international cohort study of 404 patients identified rare likely damaging variants in the gene MECP2 in patients with central precocious puberty. Translational experiments showed that GnRH neurons in mice express Mecp2.Over the last few years, several studies have provided insight into the epigenetic regulation of the onset of puberty1-3. DNA methylation, histone post-translational modifications and non-c...

ey0021.7-6 | Clinical Guidance and Studies | ESPEYB21

7.6. Familial central precocious puberty due to DLK1 deficiency: novel genetic findings and relevance of serum DLK1 levels

L Montenegro , C Seraphim , F Tinano , M Piovesan , APM Canton , K McElreavey , S Brabant , NP Boris , M Magnuson , RS Carroll , UB Kaiser , J Argente , V Barrios , VN Brito , R Brauner , AC Latronico

Brief Summary: This cross-sectional study identifies two pathogenic variants in the Delta-like noncanonical notch ligand 1 ( DLK1 ) gene in a French cohort of 121 children with idiopathic central precocious puberty (CPP).DLK1 is a noncanonical ligand of the Delta Notch pathway known to be involved in adipocyte differentiation. Its hypothalamic expression suggests a potential role in coordinating reproductive and metabolic functions. Pathogenic v...

ey0021.7-7 | Clinical Guidance and Studies | ESPEYB21

7.7. Contributions of common genetic variants to constitutional delay of puberty and idiopathic hypogonadotropic hypogonadism

MF Lippincott , EC Schafer , AA Hindman , W He , R Brauner , A Delaney , R Grinspon , JE Hall , JN Hirschhorn , K McElreavey , MR Palmert , R Rey , SB Seminara , RM Salem , YM Chan , Consortium Delayed Puberty Genetics

Brief Summary: this case-control study shows that the common genetic variants that influence pubertal timing in the general population also contribute to constitutional delay of puberty (CDP) and less significantly to normosmic idiopathic hypogonadotropic hypogonadism (IHH).CDP and IHH are two different conditions that are notoriously difficult to distinguish clinically on initial presentation. Because CDP has clear heritability traits1, and h...

ey0019.6-6 | Basic and Genetic Research of DSD | ESPEYB19

6.6. Expanding DSD phenotypes associated with variants in the DEAH-box RNA helicase DHX37

H Zidoune , L Martinerie , DS Tan , M Askari , D Rezgoune , A Ladjouze , A Boukri , Y Benelmadani , K Sifi , N Abadi , D Satta , M Rastari , M Seresht-Ahmadi , J Bignon-Topalovic , I Mazen , J Leger , D Simon , R Brauner , M Totonchi , R Jauch , A Bashamboo , K McElreavey

Sex Dev. 2021;15(4):244-252. PMID: 34293745, doi: 10.1159/000515924.Brief Summary: This genetic study provides data of a large cohort of 140 patients with DSD who were screened for DHX37 variants.DHX37 emerges as a frequent cause of nonsyndromic 46,XY gonadal dysgenesis, and 46,XY testicular regression syndrome. Since the first description of the gene (1), <...

ey0021.7-8 | Clinical Guidance and Studies | ESPEYB21

7.8. Prevalence of deleterious variants in MC3R in patients with constitutional delay of growth and puberty

K Duckett , A Williamson , JWR Kincaid , K Rainbow , LJ Corbin , HC Martin , RY Eberhardt , QQ Huang , ME Hurles , W He , R Brauner , A Delaney , L Dunkel , RP Grinspon , JE Hall , JN Hirschhorn , SR Howard , AC Latronico , AAL Jorge , K McElreavey , V Mericq , PM Merino , MR Palmert , L Plummer , RA Rey , RC Rezende , SB Seminara , K Salnikov , I Banerjee , BYH Lam , JRB Perry , NJ Timpson , P Clayton , YM Chan , KK Ong , S O'Rahilly

Brief Summary: this large patient cohort study identified an overrepresentation of functionally damaging variants in MC3R in individuals with constitutional delay of growth and puberty but not in patients with IHH.Melanocortin 3 receptor (MC3R) is a permissive signal expressed by hypothalamic kisspeptin-neurokinin B-dynorphin (KNDY) neurons. It activates puberty through the leptin-proopiomelanocortin pathway in response to nutritional signaling<...