ISSN 1662-4009 (online)

ey0016.6-11 | DSD Reviews | ESPEYB16

6.11. Testis development

JA Makela , JJ Koskenniemi , HE Virtanen , J Toppari

Endocrine Reviews, Volume 40, Issue 4, August 2019, Pages 857–905doi: 10.1210/er.2018-00140. PMID: 30590466This encyclopedic article reviews the molecular and organizational events that take place during testicular development from the very early start, i.e. the development of the primordial germ cells before gastrulation and of the gonadal ridges at 3–4 week...

ey0019.15-8 | Assorted Conditions | ESPEYB19

15.8. Serum testosterone levels in 3-month-old boys predict their semen quality as young adults

Henriksen L Scheutz , Petersen J Holm , NE Skakkebaek , N Jorgensen , HE Virtanen , L Priskorn , A Juul , J Toppari , KM Main

J Clin Endocrinol Metab. 2022;107(7):1965-75. doi: 10.1210/clinem/dgac173.PubMed ID: 35323957Brief summary: This population-based birth cohort study related infancy serum testosterone concentrations at age 3 months to parameters of reproductive function at age 18 to 20 years in 259 males. Serum testosterone in infancy predicted adult total sperm counts, and other reproductive hormones and geni...

ey0018.10-7 | (1) | ESPEYB18

10.7. Circulating metabolites in progression to islet autoimmunity and type 1 diabetes

S Lamichhane , E Kemppainen , K Trošt , H Siljander , H Hyoty , J Ilonen , J Toppari , R Veijola , T Hyotylainen , M Knip , M Orešič

Diabetologia. 2019;62(12):2287–2297. doi: 10.1007/s00125-019-04980-0This study identified different circulatory metabolite profiles in children who subsequently progress to T1D compared to children who progress to islet autoimmunity but not T1D, and antibody-negative control children.In addition to altered T cell immunity and autoantibody appearance, metaboli...

ey0019.10-6 | New paradigms | ESPEYB19

10.6. Progression of type 1 diabetes from latency to symptomatic disease is predicted by distinct autoimmune trajectories

BC Kwon , V Anand , P Achenbach , JL Dunne , W Hagopian , J Hu , E Koski , AE Lernmark , M Lundgren , K Ng , J Toppari , R Veijola , BI Frohnert

T1DI Study Group. Nat Commun. 2022 Mar 21;13(1):1514. https://pubmed.ncbi.nlm.nih.gov/35314671/Brief Summary: This study of 5 birth cohorts of individuals at high risk for type 1 diabetes (T1D) used machine learning methods to explore trajectories from autoantibodies appearance to T1D progression. They identified 11 distinct latent health states and individuals progressed according to one o...

ey0017.7-1 | Clinical Guidance | ESPEYB17

7.1. Anti-Mullerian hormone and letrozole levels in boys with constitutional delay of growth and puberty treated with letrozole or testosterone

E Kohva , T Varimo , H Huopio , S Tenhola , R Voutilainen , J Toppari , PJ Miettinen , K Vaaralahti , J Viinamaki , JT Backman , M Hero , T Raivio

To read the full abstract: Human Reproduction (Oxford, England) vol. 35, 2 (2020): 257–264. doi: https://academic.oup.com/humrep/article/35/2/257/5709207. https://pubmed.ncbi.nlm.nih.gov/31958337/This randomized controlled trial compares treatment with peroral letrozole or intramuscular low-dose testosterone in ...

ey0017.10-5 | (1) | ESPEYB17

10.5. Association of cereal, gluten, and dietary fiber intake with islet autoimmunity and type 1 diabetes

L Hakola , ME Miettinen , E Syrjala , M Akerlund , M-H Takkinen , TE Korhonen , S Ahonen , J Ilonen , J Toppari , R Veijola , J Nevelainen , M Knip , SM Virtanen

To read the full abstract: JAMA Pediatr 2019; 173:953–960.Dietary proteins, such as gluten, have been suggested to serve as triggers of the autoimmune process that leads to type 1 diabetes (T1DM). These authors studied the potential associations of cereal, gluten, and dietary fiber intake with the development of islet autoimmunity (IA) and T1DM.The prospective birth cohort Finnish Type 1 Diabetes Prediction and Preven...

ey0016.8-13 | New Hope | ESPEYB16

8.13. GnRH antagonist treatment of malignant adrenocortical tumors

M Doroszko , M Chrusciel , J Stelmaszewska , T Slezak , S Anisimowicz , U Plockinger , M Quinkler , M Bonomi , S Wolczynski , I Huhtaniemi , J Toppari , NA Rahman

To read the full abstract: Endocr Relat Cancer. 2019; 26(1): 103–117.Incidence of adrenocortical carcinomas shows a bimodal distribution, being more common in children <10 years and in adults aged 40–50 years. Their prognosis is poor, with only 10–25% 5-year survival. Ectopic expression of LHCGR and GNRHR has been reported in ACTH-independent adrenal hyperplasia ...

ey0020.2-15 | New Perspectives | ESPEYB20

2.15. Childhood height growth rate association with the risk of islet autoimmunity and development of type 1 diabetes

Z Li , R Veijola , E Koski , V Anand , F Martin , K Waugh , H Hyoty , C Winkler , MB Killian , M Lundgren , K Ng , M Maziarz , J Toppari

Brief summary: In this study, 10 145 children of 1–8 years of age, selected from a prospective systematic cohort study and stratified according to HLA-risk categories for type-1-diabetes (T1D), underwent a combined evaluation of pancreatic autoimmunity, glucose metabolism and anthropometry at different timeframes. Diagnosis of T1D occurred in 131/10,145 children (1.3%). Faster height growth, both before and after age 3 years, was significantly associated with the appearan...

ey0020.5-4 | Clinical Guidance and Studies | ESPEYB20

5.4. Reproductive markers of testicular function and size during puberty in boys with and without a history of cryptorchidism

W Rodprasert , JJ Koskenniemi , HE Virtanen , S Sadov , A Perheentupa , H Ollila , J Albrethsen , A-M Andersson , A Juul , NE Skakkebaek , KM Main , J Toppari

Brief summary: This prospective longitudinal study compared serum reproductive hormone levels and testicular volume around the onset of puberty between cryptorchid and healthy boys.Congenital cryptorchidism is the most common congenital anomaly among newborn boys, and still little is known about pubertal testicular function and serum reproductive hormone levels during puberty in this population.Pubertal follow-up with clinical exam...

ey0020.8-4 | Important for Clinical Practice | ESPEYB20

8.4. Two-age islet-autoantibody screening for childhood type 1 diabetes: a prospective cohort study

M Ghalwash , JL Dunne , M Lundgren , M Rewers , AG Ziegler , V Anand , J Toppari , R Veijola , W Hagopian , Type 1 Diabetes Intelligence Study Group

Brief summary: Using data from the Type 1 Diabetes Intelligence (T1DI) cohort (n=24 662), this prospective study aimed to identify optimal ages for initial islet autoantibody (IAb) screening to predict the development of clinical type 1 diabetes (T1D). The identified optimal screening ages were 2 years and 6 years, with sensitivity of 82% and positive predictive value of 79% for T1D by age 15 years.Screening for T1D is a growing research topic a...