ISSN 1662-4009 (online)

ey0015.7-2 | Review: Epigenetic control of female puberty | ESPEYB15

7.2 Hypothalamic Epigenetics Driving Female Puberty

CA Toro , CF Aylwin , A Lomniczi

To read the full abstract: J Neuroendocrinol. 2018; 30(7): e12589Classically, the re-awakening of the GnRH system around puberty is considered to be under the control of a variety of genes that work in coordinated networks operating in the hypothalamus1. Very recent evidence suggests that a dual mechanism of epigenetic regulation affecting the transcriptional activity of neurons involved i...

ey0015.7-1 | New concept: Epigenetic control of puberty | ESPEYB15

7.1 Trithorax dependent changes in chromatin landscape at enhancer and promoter regions drive female puberty

CA Toro , H Wright , CF Aylwin , SR Ojeda , A Lomniczi

To read the full abstract: Nat Commun. 2018 Jan 4;9(1):57The hypothalamic-pituitary-gonadal axis controls the onset of puberty and the acquisition of the reproductive function. A subset of neurons in the anterior hypothalamus secretes gonadotropin-releasing hormone (GnRH) which, through its pattern of release controls all aspects of reproduction throughout life. The secretory activity of GnR...

ey0018.7-11 | Basic Science | ESPEYB18

7.11. MKRN3 inhibits the reproductive axis through actions in kisspeptin-expressing neurons

AP Abreu , CA Toro , YB Song , VM Navarro , MA Bosch , A Eren , JN Liang , RS Carroll , AC Latronico , OK Ronnekleiv , CF Aylwin , A Lomniczi , S Ojeda , UB Kaiser

J Clin Invest. 2020 Aug 3;130(8):4486–4500. 10.1172/JCI136564. PMID: 32407292 https://www.jci.org/articles/view/136564In brief: This study in rats and non-human primate models investigated the mechanisms by which MKRN3 regulates pubertal onset in rats and non-human primates.Comment: Pubertal timing is in...

ey0016.7-2 | Basic Science | ESPEYB16

7.2. SIRT1 mediates obesity- and nutrient-dependent perturbation of pubertal timing by epigenetically controlling Kiss1 expression

MJ Vazquez , CA Toro , JM Castellano , F Ruiz-Pino , J Roa , D Beiroa , V Heras , I Velasco , C Dieguez , L Pinilla , F Gaytan , R Nogueiras , MA Bosch , OK Ronnekleiv , A Lomniczi , SR Ojeda , M Tena-Sempere

To read the full abstract: Nat Commun. 2018 Oct 10;9(1):4194.This study identifies Sirtuin 1 (SIRT1), a fuel-sensing deacetylase, as a molecule that restrains female puberty via epigenetic repression of the puberty-activating gene, Kiss1 in rats.The last few years have brought evidence regarding the epigenetic control of the onset of puberty. It is now cle...

ey0016.7-6 | Genetics of Puberty | ESPEYB16

7.6. Elucidating the genetic architecture of reproductive ageing in the Japanese population

M Horikoshi , FR Day , M Akiyama , M Hirata , Y Kamatani , K Matsuda , K Ishigaki , M Kanai , H Wright , CA Toro , SR Ojeda , A Lomniczi , M Kubo , KK Ong , JRB Perry

To read the full abstract: Nat Commun. 2018 May. 17;9(1):1977.This population study reports 26 loci for ages at menarche and menopause in a Japanese population and demonstrates widespread differences in allele frequencies and effect estimates between Japanese and European variants.Over the past decade, genome-wide association study (GWAS) meta-analys...