ISSN 1662-4009 (online)

ey0016.6-7 | Laboratory Medicine in DSD | ESPEYB16

6.7. Sex differences in reproductive hormones during mini-puberty in infants with normal and disordered sex development

TH Johannsen , KM Main , ML Ljubicic , TK Jensen , HR Andersen , MS Andersen , JH Petersen , AM Andersson , A Juul

J Clin Endocrinol Metab. 2018 Aug 1;103(8):3028–3037.doi: 10.1210/jc.2018-00482. PubMed ID: 29917083Minipuberty is a poorly understood developmental event at 1–6 months of age, during which the hypothalamic-pituitary-gonadal axis is transiently activated.This study assessed serum reproductive hormone concentrations in 1840 healthy boys ...

ey0020.2-5 | Important for Clinical Practice | ESPEYB20

2.5. Tracking and cumulative lifetime exposure to IGF-I in 6459 healthy individuals and in SGA children treated with GH

ASL Kjaer , RB Jensen , JH Petersen , A Linneberg , LL Karhus , LS Henriksen , TH Johannsen , KM Main , AR Hoffman , A Juul

Brief summary: The objective of this study was to examine whether IGF-I and IGF-binding protein-3 (IGFBP-3) levels track through childhood into adulthood and to estimate the cumulative lifetime exposure to IGF-I in healthy individuals and in individuals with a defined period of increased IGF-I levels because of GH therapy.Measurement of serum IGF-I is a cornerstone in rhGH treatment monitoring. Keeping serum IGF-I concentrations within the normal referen...

ey0021.7-2 | Clinical Guidance and Studies | ESPEYB21

7.2. Differentiation of idiopathic central precocious puberty from premature thelarche using principal component analysis

A Cleemann Wang , CP Hagen , TH Johannsen , AG Madsen , LH Cleemann , P Christiansen , KM Main , A Juul , RB Jensen

Brief Summary: this retrospective study describes clinical and biochemical parameters which, using the principal component analysis, help in the differential diagnosis between idiopathic central precocious puberty (ICPP) and premature thelarche (PT).Breast development in girls before 8 years of age may be related to progressive CPP but can sometimes simply be the consequence of premature thelarche without activation of the hypothalamic-pituitary-gonadal ...

ey0017.7-2 | Clinical Guidance | ESPEYB17

7.2. Sex-specific estrogen levels and reference intervals from infancy to late adulthood determined by LC-MS/MS

H Frederiksen , TH Johannsen , SE Andersen , J Albrethsen , SK Landersoe , JH Petersen , AN Andersen , ET Vestergaard , ME Schorring , A Linneberg , KM Main , AM Andersson , A Juul

To read the full abstract: Journal of clinical endocrinology and metabolism vol. 105,3 (2020):754–768. doi: https://academic.oup.com/jcem/article/105/3/754/5624050The authors used state-of-the-art liquid chromatography tandem mass spectrometry to establish sex-specific reference ranges for estrone (E1) and estradiol (E2) throughout life and evaluate sex-differences.</...

ey0018.6-12 | Reviews with Clinical Impact for DSD Care | ESPEYB18

6.12. Peptide hormone analysis in diagnosis and treatment of Differences of Sex Development: joint position paper of EU COST Action 'DSDnet' and European Reference Network on Rare Endocrine Conditions

TH Johannsen , AM Andersson , SF Ahmed , YB de Rijke , RF Greaves , MF Hartmann , O Hiort , PM Holterhus , NP Krone , A Kulle , ML Ljubicic , G Mastorakos , J McNeilly , AM Pereira , A Saba , SA Wudy , KM Main , A Juul

Eur J Endocrinol. 2020 Jun;182(6):P1–P15. doi: 10.1530/EJE-19-0831. PMID: 32268295.This paper describes the concerted efforts of the EU COST Action DSDNet and the European network for rare endocrine diseases Endo-ERN. A total of 33 laboratories were involved and they describe state of the art assessments of the peptide hormones: follicle-stimulating hormone (FSH), luteinizing hormone (LH)...

ey0017.6-3 | Differences/Disorders of Sex Development: A DSDnet Pape | ESPEYB17

6.3. Peptide hormone analysis in diagnosis and treatment of differences of sex development: Joint position paper of EU COST action ‘DSDnet’ and european reference network on rare endocrine conditions

TH Johannsen , AM Andersson , SF Ahmed , YB de Rijke , RF Greaves , MF Hartmann , O Hiort , PM Holterhus , NP Krone , A Kulle , ML Ljubicic , G Mastorakos , J McNeilly , AM Pereira , A Saba , SA Wudy , KM Main , A Juul

To read the full abstract: Eur J Endocrinol. 2020, Jun; 182: P1–p15; doi: https://eje.bioscientifica.com/downloadpdf/journals/eje/182/6/EJE-19-0831.pdfDiagnosis and monitoring of therapies for DSD patients require clinical, biochemical and genetic assessments. Biochemical analyses comprise the measurements of peptide and steroid hormones. This positi...