ISSN 1662-4009 (online)

ey0015.5-3 | New genes and gene mutations | ESPEYB15

5.3 CYP3A4 mutation causes vitamin D-dependent rickets type 3

JD Roizen , D Li , L O'Lear , MK Javaid , NJ Shaw , PR Ebeling , HH Nguyen , CP Rodda , KE Thummel , TD Thacher , H Hakonarson , MA Levine

To read the full abstract: J Clin Invest 2018;128:1913-1918Two rare genetic forms of vitamin D–dependent rickets exist: VDDR-1 caused by mutations in the genes encoding either the renal 1-α hydroxylase (CYP27B1: VDDR-1A) or the hepatic 25-hydroxylase (CYP2R1: VDDR-1B) and VDDR-2 caused by mutations in the vitamin D receptor signalling due to mutations in the gene encoding the ...

ey0020.3-7 | Advances in Clinical Practice | ESPEYB20

3.7. Prevalence of monogenic bone disorders in a Dutch cohort of atypical femur fracture patients

W Zhou , JG van Rooij , DM van de Laarschot , Z Zervou , H Bruggenwirth , NM Appelman-Dijkstra , PR Ebeling , S Demirdas , AJ Verkerk , MC Zillikens

In Brief: Prolonged bisphosphonate treatment is associated with atypical femoral fractures (AFF). However, AFFs also occur in bisphosphonate-naïve patients, so bisphosphonate is not a prerequisite for AFF. This study found a higher yield of (likely) pathogenic variants in AFF patients with a clinical suspicion of monogenic bone disorder, stressing the importance of careful clinical evaluation of patients who present with this condition.Commentary: A...

ey0020.3-4 | Advances in Clinical Practice | ESPEYB20

3.4. Skeletal and extraskeletal disorders of biomineralization

MT Collins , G Marcucci , HJ Anders , G Beltrami , JA Cauley , PR Ebeling , R Kumar , A Linglart , L Sangiorgi , DA Towler , R Weston , MP Whyte , ML Brandi , B Clarke , RV Thakker

In Brief: This is a timely and well-written review on disorders of biomineralization and their fundamental mechanisms and by leading experts in the field. This is mandatory reading for any aspiring endocrinologist.Commentary: Biomineralization is a critical physiological process, and deviations from it can cause various diseases. Recent progress has furthered our understanding of the genetic, molecular, and cellular underpinnings of the disorders of biom...