ISSN 1662-4009 (online)

ey0021.7-3 | Clinical Guidance and Studies | ESPEYB21

7.3. Sex-independent timing of the onset of central puberty revealed by nocturnal luteinizing hormone concentrations

A Demir , M Hero , A Juul , KM Main

Brief Summary: this longitudinal study found no statistical difference between boys and girls regarding the timing of increase in nocturnal luteinizing hormone concentrations.Puberty results from a gradual increase in GnRH secretion, that can be monitored by urinary gonadotropin measurements. Timing of normal puberty, initially described by Marshal and Tanner, is characterized by an important individual variability in humans1,2. The difference...

ey0020.9-8 | Genetic Obesity and Genetic Risk Score | ESPEYB20

9.8. A National Multicenter Study of Leptin (LEP) and Leptin Receptor (LEPR) deficiency and systematic review

O Besci , SN Fırat , S Ozen , S Cetinkaya , L Akın , Y Kor , Z Pekkolay , S Ozalkak , E Ozsu , SS Erdeve , S Poyrazoglu , M Berberglu , M Aydin , T Omma , B Akinici , K Demir , EA Oral

Brief summary: This paper describes 18 patients with bi-allelic leptin deficiency (LEP, n=11) or leptin receptor deficiency (LEPR, n=7), including 10 new cases and two novel variants. In addition, in a review of the literature (until July 2022), the authors identified n=75 patients living with LEP deficiency and n=90 with LEPR deficiency (n=152 included for comparison between groups).<p class=...

ey0021.13-12 | Endocrinology | ESPEYB21

13.12. High frequency of transient congenital hypothyroidism among infants referred for suspected congenital hypothyroidism from the Turkish National screening program: thyroxine dose may guide the prediction of transients

Y Ozer , A Anık , U Sayılı , U Tercan , R Deveci Sevim , S Guneş , Pirimoğlu M Buhur , S Elmaoğulları , I Dundar , D Okdemir , O Besci , A Jalilova , D Cicek , B Singin , ŞE Ulu , H Turan , S Albayrak , Sutcu Z Kocabey , BS Eklioğlu , E Eren , S Cetinkaya , Ş Savaş-Erdeve , I Esen , K Demir , Ş Darcan , N Hatipoğlu , M Parlak , F Dursun , Z Şıklar , M Berberoğlu , M Keskin , Z Orbak , B Tezel , E Yuruker , B Keskinkılıc , F Kara , E Erginoz , F Darendeliler , O Evliyaoğlu

Brief Summary: This retrospective, multicenter study examined patients who were diagnosed with congenital hypothyroidism (CH) through the newborn screening (NSP) program in Turkey. It assessed the prevalence of temporary congenital hypothyroidism (TCH), examined the causes of permanent congenital hypothyroidism (PCH), and identified laboratory and clinical indicators to distinguish TCH and PCH.Congenital hypothyroidism (CH), the most prevalent endocrine ...

ey0018.3-13 | Clinical studies | ESPEYB18

3.13. Disease characteristics of MCT8 deficiency: an international, retrospective, multicentre cohort study

S Groeneweg , FS van Geest , A Abacı , A Alcantud , GP Ambegaonkar , CM Armour , P Bakhtiani , D Barca , ES Bertini , IM van Beynum , N Brunetti-Pierri , M Bugiani , M Cappa , G Cappuccio , B Castellotti , C Castiglioni , K Chatterjee , IFM de Coo , R Coutant , D Craiu , P Crock , C DeGoede , K Demir , A Dica , P Dimitri , A Dolcetta-Capuzzo , MHG Dremmen , R Dubey , A Enderli , J Fairchild , J Gallichan , B George , EF Gevers , A Hackenberg , Z Halasz , B Heinrich , T Huynh , A Kłosowska , MS van der Knaap , MM van der Knoop , D Konrad , DA Koolen , H Krude , A Lawson-Yuen , J Lebl , M Linder-Lucht , CF Lorea , CM Lourenco , RJ Lunsing , G Lyons , J Malikova , EE Mancilla , A McGowan , V Mericq , FM Lora , C Moran , KE Muller , I Oliver-Petit , L Paone , PG Paul , M Polak , F Porta , FO Poswar , C Reinauer , K Rozenkova , TS Menevse , P Simm , A Simon , Y Singh , M Spada , J van der Spek , MAM Stals , A Stoupa , GM Subramanian , D Tonduti , S Turan , CA den Uil , J Vanderniet , A van der Walt , JL Wemeau , J Wierzba , MY de Wit , NI Wolf , M Wurm , F Zibordi , A Zung , N Zwaveling-Soonawala , WE Visser

Lancet Diabetes Endocrinol. 2020;8:594–605. doi: 10.1016/S2213-8587(20)30153-4.Groenenweg et al. present the so far largest retrospective multicentre cohort study on 151 patients with 73 different MCT8 (SLC16A2) mutations to compare and describe in detail the phenotypic spectrum and the disease course of MCT8 deficiency. The careful description of presenting cl...