ESPE Yearbook of Paediatric Endocrinology

Brief summary: Two unrelated patients with a disorder of sex development (DSD) phenotype of partial androgen insensitivity (PAIS) showed heterozygous variants in the DAAM2 gene. Their genital skin fibroblasts showed reduced dihydrotestosterone-stimulated androgen receptor (AR) activity. Extensive basic studies revealed the underlying mechanism of the DSD in which DAAM2-regulated actin polymerization at the ligand-inducible androgen receptor is required for androgen-st...

To read the full abstract: Nature Medicine. 2019;25(11):1733–8. PMID 31700171.These authors sequenced the gene for melanocortin-2 receptor accessory protein (MRAP2 ) in 9418 blood DNA samples from several population studies. They detected 23 rare heterozygous variants, which were significantly associated with an increased risk of obesity (OR 3.8 in children and 2.9 in adults)....

Front Genet. 2022 Mar 3;13:736988. PMID: 35309143, doi: 10.3389/fgene.2022.736988.Brief Summary: This molecular study highlights a novel mechanism of action of Mitogen-activated protein kinase kinase kinase 1 (MAP3K1) in the development of testicular dysgenesis.MAP3K1 is one of the most common genes that has been identified to cause 46, XY DSD and variants are attribu...

Nat Med. 2021 Nov;27(11):1928-1940. doi: 10.1038/s41591-021-01502-7. PMID: 34663987.Brief Summary: This clinical study characterised the spectrum of novel diabetes phenotypes due to mutations in the Transcription factor One Cut Homeobox 1 (ONECUT1)/hepatocyte nuclear factor 6 (HNF6). The study uncovers novel forms of diabetes mellitus due to mutations in ONECUT1.<p cl...

J Clin Endocrinol Metab. 2020;105:3203–3214. doi: 10.1210/clinem/dgaa443. PMID: 32652002The authors performed a large genome-wide association study (GWAS) to assess the role of common genetic variants in the response to GH therapy. A total of 614 children treated with GH were included: 276 with idiopathic GHD, 297 with ISS, and 41 born SGA. The findings implicate some novel mechanisms...

To read the full abstract: N Engl J Med. 2020;382(22):2117–2128. doi: https://pubmed.ncbi.nlm.nih.gov/32233338/Kelly et al. randomly assigned (1:1) n =251 obese adolescents (age 12 to <18 years) to receive either liraglutide (3.0 mg), a long-acting glucagon-like peptide-1 agonist, or placebo subcutaneously once daily in addition to lifestyle therapy. Liraglutide w...

To read the full abstract: Lancet Child Adolesc Health. 2020;4(3):210–19. PMID 31978372.In this non-randomized matched-control study, 81 obese adolescents undergoing Roux-en-Y gastric bypass surgery (RYGB) who participated in the Adolescent Morbid Obesity Surgery (AMOS) study (11) were compared with 80 obese controls from the Swedish Childhood Obesity Treatment Register (BORIS) who rec...

Brief summary: Using human induced pluripotent stem cells as well as transgenic mouse models, this paper shows that MKRN3 could initiate pubertal onset by regulating hypothalamic development and plasticity.The reactivation of GnRH secretion at puberty is thought to result from a loss in inhibitory input together with an increase in transactivation onto GnRH neurons. The main component of this inhibitory tone was incompletely understood until the discover...

Brief summary: This study summarises the involvement of specific miRNAs in diabetes mellitus, thyroid diseases, osteoporosis, pituitary tumours, Cushing’s disease, adrenal insufficiency and multiple endocrine neoplasia’s. Furthermore, the potential of miRNA as candidates for developing novel diagnostic and therapeutic tools is also discussed.Endocrine disorders are common worldwide and represent a considerable public health problem due to long ...

Brief summary: In this experimental study, a transdermal polymeric microneedle (MN) patch for glucose-responsive closed-loop insulin and glucagon delivery was developed. In chemically-induced type 1 diabetes (T1D) mouse and minipig models, this glucose-responsive dual-hormone MN patch demonstrated tight regulation in blood glucose.The interplay between insulin and glucagon is essential for blood glucose regulation in individuals with or without diabetes....