ISSN 1662-4009 (online)

ey0017.7-3 | Clinical Guidance | ESPEYB17

7.3. Pubertal timing and adult fracture risk in men: A population-based cohort study

L Vandenput , JM Kindblom , M Bygdell , M Nethander , C Ohlsson

To read the full abstract: PLoS Medicine vol. 16,12 e1002986. 2 Dec. 2019. doi: https://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1002986This large scale population-based cohort study identifies a slightly higher risk for adult fracture in men who had later puberty. The pubertal period plays a key role...

ey0017.14-11 | (1) | ESPEYB17

14.11. Increased weight loading reduces body weight and body fat in obese subjects - A proof of concept randomized clinical trial

C Ohlsson , E Gidestrand , J Bellman , C Larsson , V Palsdottir , D Hagg , PA Jansson , JO Jansson

To read the full abstract: EClinicalMedicine. 2020 Apr 30;22:100338. doi: 10.1016/j.eclinm.2020.100338.The gravitostat hypothesis was only recently proposed based on studies in rodents showing that the addition of external weights to the body limits the rate of weight gain, independent of leptin signalling. In rodents, this was achieved by inserting weighted balloons into the abdomina...

ey0016.15-18 | (1) | ESPEYB16

15.18. The gravitostat regulates fat mass in obese male mice while leptin regulates fat mass in lean male mice

C Ohlsson , DA Hagg , F Hammarhjelm , A Dalmau Gasull , J Bellman , SH Windahl , V Palsdottir , JO Jansson

To read the full abstract: Endocrinology. 2018 Jul 1;159(7):2676–2682.The authors compared the effects of leptin versus weight loading using intraperitoneal weighted capsules (‘gravitostat stimulation’) on changes in fat mass in mice. Leptin infusion suppressed body weight and fat mass in lean but not in overweight or obese mice. Weight loading decreased body weight in ove...

ey0020.7-9 | Bone Health in Inflammatory Bowel Disease | ESPEYB20

7.9. Young adult male patients with childhood-onset IBD have increased risks of compromised cortical and trabecular bone microstructures

GV Sigurdsson , S Schmidt , D Mellstrom , C Ohlsson , R Saalman , M Lorentzon

Brief summary: This prospective longitudinal study of childhood-onset inflammatory bowel disease (IBD) analysed areal bone mineral density (aBMD) and alterations of bone microstructure in 49 young adult male patients with childhood-onset IBD, compared to 249 controls from the same region and matched for age, sex and height.Dual x-ray-absorptiometry (DXA) is routinely used in clinical practice to evaluate aBMD and the related risk of fracture, but it is u...

ey0016.5-2 | New Therapies and Novel Therapeutic Strategies | ESPEYB16

5.2. Humanin is a novel regulator of Hedgehog signaling and prevents glucocorticoid-induced bone growth impairment

F Zaman , Y Zhao , B Celvin , HH Mehta , J Wan , D Chrysis , C Ohlsson , B Fadeel , P Cohen , L Savendahl

Abstract: FASEB J. 2019;33:4962–4974.In brief: Glucocorticoid-induced growth impairment is reverted by the mitochondrial peptide humanin in dexamethasone-treated mice without attenuation of anti-inflammatory effects.Comment: Humanin (HN) is a 24 aminoacid peptide that was originally discovered as a neuroprotective factor and later shown ...

ey0019.3-2 | Thyroid hormone action | ESPEYB19

3.2. Congenital hypothyroidism and hyperthyroidism alters adrenal gene expression, development, and function

K Patyra , C Lof , H Jaeschke , H Undeutsch , HS Zheng , S Tyystjarvi , K Puławska , M Doroszko , M Chruściel , BM Loo , R Kurkijarvi , FP Zhang , CJ Huang , C Ohlsson , A Kero , M Poutanen , J Toppari , R Paschke , N Rahman , I Huhtaniemi , J Jaaskelainen , J Kero

Thyroid. 2022 Apr;32(4):459-471. doi: 10.1089/thy.2021.0535. PMID: 35044245Brief Summary: This study combines animal model and patient cohort data on the effect of hyperthyroidism and hypothyroidism at birth on adrenal gland development and function. The data revealed reciprocal effects of neonatal hyper- and hypothyroidism on adrenal development, activity of the adrenal steroidogenic pathway a...

ey0020.5-11 | Basic Research | ESPEYB20

5.11. Dicer ablation in Kiss1 neurons impairs puberty and fertility preferentially in female mice

J Roa , M Ruiz-Cruz , F Ruiz-Pino , R Onieva , MJ Vazquez , MJ Sanchez-Tapia , JM Ruiz-Rodriguez , V Sobrino , A Barroso , V Heras , I Velasco , C Perdices-Lopez , C Ohlsson , MS Avendano , V Prevot , M Poutanen , L Pinilla , F Gaytan , M Tena-Sempere

Brief summary: A newly developed mouse model of congenital ablation of Dicer in kisspeptin neurons was used to identify a role for miRNAs in kisspeptin neuron activity and control of reproduction.The last few years have seen a shift in paradigm with the discovery of epigenetic mechanisms regulating GnRH neuron activity and thus puberty and reproduction. In particular, miRNAs appear to play a crucial role in the maturation and function of the hypothalamic...