ISSN 1662-4009 (online)

ey0018.8-13 | New Concerns | ESPEYB18

8.13. Perturbed beta-cell function and lipid profile after early prenatal dexamethasone exposure in individuals without CAH

L Wallensteen , L Karlsson , V Messina , A Nordenstrom , S Lajic

J Clin Endocrinol Metab. 2020;105(7): e2439-48.https://pubmed.ncbi.nlm.nih.gov/32433752/Here, the authors investigated the effects of dexamethasone (DEX) on metabolism in individuals without CAH but treated with DEX during the first trimester of fetal life. Prenatal DEX exposure was associated with decreased beta-cell function and higher cholesterol concentrations.Pre...

ey0017.8-6 | Important for Clinical Practice | ESPEYB17

8.6. Cognitive function of children and adolescents with congenital adrenal hyperplasia: Importance of early diagnosis

V Messina , L Karlsson , T Hirvikoski , A Nordenstrom , S Lajic

To read the full abstract: J Clin Endocrinol Metab. 2020; 105(3): dgaa016. PMID: 31927590.Classical congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency requires life-long glucocorticoid (GC) replacement therapy. Previous studies on general cognitive ability in patients with CAH have been conflicting, and the majority focused on intelligence in adult patients. Some studies h...

ey0017.7-11 | Basic Science | ESPEYB17

7.11. Neuron-derived neurotrophic factor is mutated in congenital hypogonadotropic hypogonadism

A Messina , K Pulli , S Santini , J Acierno , J Kansakoski , D Cassatella , C Xu , F Casoni , SA Malone , G Ternier , D Conte , Y Sidis , J Tommiska , K Vaaralahti , A Dwyer , Y Gothilf , GR Merlo , F Santoni , NJ Niederlander , P Giacobini , T Raivio , N Pitteloud

To read the full abstract: American journal of human genetics vol. 106,1 (2020): 58–70. doi: https://www.sciencedirect.com/science/article/pii/S0002929719304677?via%3DihubBy performing next-generation sequencing in 240 unrelated probands with congenital hypogonadotropic hypogonadism and follow-up in multiple animal models, this study identifies ...

ey0015.7-11 | New genes in hypogonadotropic hypogonadism | ESPEYB15

7.11 KLB, encoding β-Klotho, is mutated in patients with congenital hypogonadotropic hypogonadism

C Xu , A Messina , E Somm , H Miraoui , T Kinnunen , J Acierno , NJ Niederländer , J Bouilly , AA Dwyer , Y Sidis , D Cassatella , GP Sykiotis , R Quinton , C De Geyter , M Dirlewanger , V Schwitzgebel , TR Cole , AA Toogood , JM Kirk , L Plummer , U Albrecht , WF Crowley , M Mohammadi , M Tena-Sempere , V Prevot , N Pitteloud

To read the full abstract: EMBO Mol Med. 2017 Oct;9(10):1379-1397[Comments on 7.10 and 7.11] During embryonic development, GnRH neurons originate in the olfactory placode and migrate through the nasal mesenchyme using the olfactory/vomeronasal axons as a scaffold to reach their final destination in the basal forebrain1,2. Th...

ey0020.5-8 | Clinical Guidance and Studies | ESPEYB20

5.8. GnRH replacement rescues cognition in Down syndrome

M Manfredi-Lozano , V Leysen , M Adamo , I Paiva , R Rovera , JM Pignat , FE Timzoura , M Candlish , S Eddarkaoui , SA Malone , MSB Silva , S Trova , M Imbernon , L Decoster , L Cotellessa , M Tena-Sempere , M Claret , A Paoloni-Giacobino , D Plassard , E Paccou , N Vionnet , J Acierno , AM Maceski , A Lutti , F Pfrieger , S Rasika , F Santoni , U Boehm , P Ciofi , L Buee , N Haddjeri , AL Boutillier , J Kuhle , A Messina , B Draganski , P Giacobini , N Pitteloud , V Prevot

Brief summary: This study identified a new role for GnRH in higher brain function using a rodent model of Down Syndrome. It reports for the first time an improvement of cognitive functions in patients with Down Syndrome treated with pulsatile GnRH.GnRH neurons are classically described as a population of neurons located in the hypothalamus and responsible for the activation and regulation of the hypothalamic-pituitary-gonadal axis. However, the recent de...

ey0020.5-13 | Basic Research | ESPEYB20

5.13. NOS1 mutations cause hypogonadotropic hypogonadism with sensory and cognitive deficits that can be reversed in infantile mice

K Chachlaki , A Messina , V Delli , V Leysen , C Maurnyi , C Huber , G Ternier , K Skrapits , G Papadakis , S Shruti , M Kapanidou , X Cheng , J Acierno , J Rademaker , S Rasika , R Quinton , M Niedziela , D L'Allemand , D Pignatelli , M Dirlewander , M Lang-Muritano , P Kempf , S Catteau-Jonard , NJ Niederlander , P Ciofi , M Tena-Sempere , J Garthwaite , L Storme , P Avan , E Hrabovszky , A Carleton , F Santoni , P Giacobini , N Pitteloud , V Prevot

Brief summary: This study identified nitric oxide synthase 1 (NOS1) heterozygous missense variants in 6 patients with hypogonadotropic hypogonadism. Altered minipuberty and puberty as well as cognitive impairment were observed in NOS1 deficient mice.Nitric oxide (NO) is produced under the control of NO synthase in hypothalamic neurons. NO plays a crucial role in regulating gonadotropin-releasing hormone (GnRH) secretion, acting as a strong inhibitory sig...