ISSN 1662-4009 (online)

ey0019.14-4 | Steroidogenesis and beyond | ESPEYB19

14.4. Quantification of androgens and their precursors in full-term human placenta

T Yoshida , K Matsumoto , M Miyado , Y Miyashiro , H Sago , R Horikawa , M Fukami

Eur J Endocrinol 2021;185:K7–K11 doi: 10.1530/EJE-21-0312Brief Summary: Steroid profiling of 10 placentas of healthy full-term neonates (five male and five female) using liquid chromatography-tandem mass spectrometry revealed the presence of C11-oxy C19 steroids (androgens) in the fetal-placental unit at term – pointing to alternative androgen pathways in this unit.<p cla...

ey0020.2-14 | New Perspectives | ESPEYB20

2.14. Pathogenic copy number and sequence variants in children born SGA with short stature without imprinting disorders

K Hara-Isono , A Nakamura , T Fuke , T Inoue , S Kawashima , K Matsubara , S Sano , K Yamazawa , M Fukami , T Ogata , M Kagami

Brief summary: This observational study aimed at clarifying the contribution of pathogenic copy number variants (PCNVs) and candidate pathogenic variants in 86 children born small-for-gestational-age with short stature (SGA-SS).Approximately 10% of children born SGA do not show catch-up and remain permanently short (SGA-SS) (1,2). There is increasing evidence suggesting that genetic abnormalities underlie a high proportion of SGA-SS children. In this stu...

ey0021.6-4 | DSD - Novel Genes and Mechanisms involved in Gonadal Development | ESPEYB21

6.4. Microdeletion at ESR1 intron 6 (DEL_6_75504) is a susceptibility factor for cryptorchidism and hypospadias

Y Masunaga , Y Fujisawa , F Massart , C Spinelli , Y Kojima , K Mizuno , Y Hayashi , I Sasagawa , R Yoshida , F Kato , M Fukami , N Kamatani , H Saitsu , T Ogata

Brief Summary: This translational study identifies a new susceptibility region within the estrogen receptor α ( ESR1 ) gene, linked to cryptorchidism (CO) and hypospadias (HS), the most common birth defects of the male genital tract. CO occurs in approximately 1:100 male births and is 3-times more common in premature infants, while HS affects about 1:300 male births. The prevalence of both conditions has increased over the years, with premature infants showing hi...

ey0017.4-3 | Important for clinical practice | ESPEYB17

4.3. IGF2 Mutations

Y Masunaga , T Inoue , K Yamoto , Y Fujisawa , Y Sato , Y Kawashima-Sonoyama , N Morisada , K Iijima , Y Ohata , N Namba , H Suzumura , R Kuribayashi , Y Yamaguchi , H Yoshihashi , M Fukami , H Saitsu , M Kagami , T Ogata

To read the full abstract: J Clin Endocrinol Metab. 2020 Jan 1;105(1):dgz034.Using different genetic approaches, the authors identified 5 novel pathogenic or likely pathogenic IGF2 gene variants in Japanese patients who underwent genetic testing for the variable associations of multiple congenital anomalies such as mental retardation, Silver-Russell syndrome (SRS), disorders of sex development (DSD), ectrodactyly (split hand/foot malfor...

ey0017.6-7 | Differences/Disorders of Sex Development: Genetics | ESPEYB17

6.7. MYRF haploinsufficiency causes 46,XY and 46,XX disorders of sex development: Bioinformatics consideration

K Hamanaka , A Takata , Y Uchiyama , S Miyatake , N Miyake , S Mitsuhashi , K Iwama , A Fujita , E Imagawa , AN Alkanaq , E Koshimizu , Y Azuma , M Nakashima , T Mizuguchi , H Saitsu , Y Wada , S Minami , Y Katoh-Fukui , Y Masunaga , M Fukami , T Hasegawa , T Ogata , N Matsumoto

To read the full abstract: Hum Mol Genet. 2019, Jul 15; 28: 2319–29. doi: https://academic.oup.com/hmg/article/28/14/2319/5424416This study provides evidence that MYRF is important in the development of coelomic endothelial derived cells, and early gonadal development in both males and females. It combines detailed phenotypic assessment of patients and whole geno...