Emerging Roles of Epigenetics in the Control of Reproductive Function: Focus on Central Neuroendocrine Mechanisms DOI Creative Commons
María J. Vázquez, Silvia Daza‐Dueñas, Manuel Tena‐Sempere

et al.

Journal of the Endocrine Society, Journal Year: 2021, Volume and Issue: 5(11)

Published: Sept. 27, 2021

Abstract Reproduction is an essential function for perpetuation of the species. As such, it controlled by sophisticated regulatory mechanisms that allow a perfect match between environmental conditions and internal cues to ensure adequate pubertal maturation achievement reproductive capacity. Besides classical genetic events, mounting evidence has documented different epigenetic operate at levels axis finely tune development this complex neuroendocrine system along lifespan. In mini-review, we summarize recent on role epigenetics in control reproduction, with special focus modulation central components axis. Particular attention will be paid puberty Kiss1 neurons because major developments have taken place domain recently. addition, putative mediating influence nutritional discussed.

Language: Английский

The Complex Interplay between Endocannabinoid System and the Estrogen System in Central Nervous System and Periphery DOI Open Access
Antonietta Santoro, Elena Mele, Marianna Marino

et al.

International Journal of Molecular Sciences, Journal Year: 2021, Volume and Issue: 22(2), P. 972 - 972

Published: Jan. 19, 2021

The endocannabinoid system (ECS) is a lipid cell signaling involved in the physiology and homeostasis of brain peripheral tissues. Synaptic plasticity, neuroendocrine functions, reproduction, immune response among others all require activity functional ECS, with onset disease case ECS impairment. Estrogens, classically considered as female steroid hormones, regulate growth, differentiation, many other functions broad range target tissues both sexes through activation nuclear membrane estrogen receptors (ERs), which leads to genomic non-genomic responses. Since function overlaps or integrates systems, this review aims at updating knowledge about possible crosstalk between (ES) central level, focuses on nervous system, cancer.

Language: Английский

Citations

39

An Approach to the Patient With Delayed Puberty DOI Open Access
Jennifer Harrington, Mark R. Palmert

The Journal of Clinical Endocrinology & Metabolism, Journal Year: 2022, Volume and Issue: 107(6), P. 1739 - 1750

Published: Feb. 1, 2022

Abstract Pediatric endocrinologists often evaluate and treat youth with delayed puberty. Stereotypically, these patients are 14-year-old young men who present due to lack of pubertal development. Concerns about stature present, arising from gradual shifts lower height percentiles on the population-based, cross-sectional curves. Fathers and/or mothers may have also experienced later than average onset. In this review, we will discuss a practical clinical approach evaluation management puberty, including differential diagnosis key aspects informed by recent review existing literature. We scenarios that pose additional challenges, including: (1) woman whose case poses questions regarding how presentation differs for females vs males; (2) female or 16-year-old man highlight need reconsider most likely diagnoses, whether idiopathic puberty can still be considered constitutional delay growth at such late ages; finally (3) 12- 13-year-old raises age cutoffs treatment should adjusted downward coincide earlier onset in general population.

Language: Английский

Citations

27

The link between obesity and puberty: what is new? DOI
Alyssa Huang, Christian L. Roth

Current Opinion in Pediatrics, Journal Year: 2021, Volume and Issue: 33(4), P. 449 - 457

Published: June 23, 2021

Purpose of review The objective this is to assess the most recent literature on pubertal trends in boys and girls as well evaluate genetic, epigenetic, environmental factors implicated timing progression. Recent findings studies confirm previously described link between increased adiposity earlier onset puberty girls, more shed light onto unclear situation a preponderance longitudinal suggests that linked with also boys. Discoveries novel pathways highlights complexity development suggest mechanistic links nutrition, obesity, leptin, insulin resistance, puberty. Furthermore, genetic epigenetic variants can be early Other factors, such prenatal postnatal environment, gut microbiota, endocrine-disrupting chemicals have been both obesity Summary Understanding how interactions these contribute relationship crucial has long-term consequences, short stature, type 2 diabetes, cardiovascular disease, poor psychological behavioral outcomes.

Language: Английский

Citations

31

Causal Effect of Age at Menarche on the Risk for Depression: Results From a Two-Sample Multivariable Mendelian Randomization Study DOI Creative Commons
Raphael Hirtz,

Christine Hars,

Roaa Naaresh

et al.

Frontiers in Genetics, Journal Year: 2022, Volume and Issue: 13

Published: July 12, 2022

A fair number of epidemiological studies suggest that age at menarche (AAM) is associated with depression, but the reported effect sizes are small, and there evidence residual confounding. Moreover, previous Mendelian randomization (MR) to avoid inferential problems inherent have provided mixed findings. To clarify causal relationship between broadly defined depression risk, we used 360 genome-wide significantly AAM-related single-nucleotide polymorphisms (SNPs) as instrumental variable data from latest GWAS for risk on 807,553 individuals (246,363 cases 561,190 controls). Multiple methods account heterogeneity (penalized weighted median, MR Lasso, contamination mixture method), systematic idiosyncratic pleiotropy (MR RAPS), horizontal PRESSO multivariable using three methods) were used. Body mass index, education attainment, total white blood count considered pleiotropic phenotypes in analysis. In univariable [inverse-variance (IVW): OR = 0.96, 95% confidence interval 0.94–0.98, p 0.0003] analysis (IVW: 0.94–0.99, 0.007), was a significant AAM risk. Thus, present study supports conclusions implicating without pitfalls confounding reverse causation. Considering adverse consequences an earlier mental health, this finding should foster efforts address factors promote AAM.

Language: Английский

Citations

21

The effects of the covid-19 pandemic on puberty: a cross-sectional, multicenter study from Turkey DOI Creative Commons
Gül Yeşiltepe Mutlu, Elif Eviz, Belma Haliloğlu

et al.

˜The œItalian Journal of Pediatrics/Italian journal of pediatrics, Journal Year: 2022, Volume and Issue: 48(1)

Published: Aug. 13, 2022

Abstract Backgrounds During the Coronavirus-19 disease (Covid-19) pandemic it was observed that number of girls presenting with early puberty had increased. The aim this study to carry out a retrospective evaluation characteristics who been referred for precocious in five different pediatric endocrinology units, before and during pandemic. Methods participants comprised 359 were assigned into 2 groups pre-pandemic group ( n :214) :145). Those :99) medical records follow-up period classified 3 subgroups according time presentation visits (group-1: first admission visit pandemic, group-2: group-3: pandemic). Results age at pubertal onset both significantly lower than those group(8.1 vs 8.6, p : < 0.001,7.7 7.9, :0.013, respectively). There no significant difference between body mass index standard deviation scores (BMI-SDS) values (0.57 0.51, :0.430). initiation rate suppression therapy higher compared (7.7%vs 27.5%), groups-2 & group-1, (20%&44%vs 8%). Conclusion Our research showed occurred earlier previous year, need increased

Language: Английский

Citations

21

The Course of Minipuberty in Daughters of Women with Low Gestational Vitamin D Status DOI Open Access
Karolina Kowalcze, Robert Krysiak, Giuseppe Gullo

et al.

Nutrients, Journal Year: 2024, Volume and Issue: 16(14), P. 2362 - 2362

Published: July 21, 2024

Minipuberty is a term describing temporary, sex-specific activation of the hypothalamic–pituitary–gonadal axis, which implicated in development male and female genital organs. Sons women with low vitamin D during gestation were found to be characterized by increased activity reproductive axis faster postnatal growth The current study assesses for first time course minipuberty descendants deficit. population included three matched groups infant girls: children born deficiency (25OHD concentration below 50 nmol/L), offspring insufficiency between 75 daughters healthy females 150 nmol/L). Salivary concentrations estradiol, progesterone, 17-hydroxyprogesterone androgens, as well urine FSH LH, assayed 18 months life (once month 6 months, bimonthly 12, then every months). At each visit, beyond hormone measurements, investigators assessed size organs: ovaries, uterus breasts. In mothers deficiency, FSH, LH estradiol higher detectable longer period time, while ovarian volume, uterine length breast diameter greater than remaining groups. Children levels females, though detection was same, both differed diameter. These findings suggest that status leads more pronounced longer-lasting associated dimensions sexual organs, magnitude depends on degree

Language: Английский

Citations

4

Shared Pathophysiological Mechanisms and Genetic Factors in Early Menarche and Polycystic Ovary Syndrome DOI
Flávia Rezende Tinano,

Iza Franklin Roza Machado,

Ana Claudia Latronico

et al.

Journal of Neuroscience, Journal Year: 2025, Volume and Issue: 45(11), P. e1681242024 - e1681242024

Published: March 12, 2025

Early age at menarche (early AAM) and polycystic ovary syndrome (PCOS) are reproductive metabolic disorders with overlapping pathophysiological genetic features. Epidemiological studies suggest a link between these two conditions, both of which characterized by dysregulation the neuroendocrine pathways that control pulsatile gonadotropin-releasing hormone secretion, thus affecting gonadotropin release, particularly luteinizing secretion. A common pathophysiology involving positive energy balance abnormal status is evident in disorders. Genetic epigenetic factors influence onset puberty outcomes. Genome-wide association have identified variants associated AAM PCOS, genes related to axis (e.g., FSHB) obesity FTO). In addition, high-throughput sequencing has revealed rare loss-of-function DLK1 gene women central precocious (CPP), early menarche, who experienced adverse outcomes adulthood. This review explores shared mechanisms CPP/early examines potential may offers insights into future research treatment strategies. Understanding connections provide new targets for therapeutic interventions improve individuals

Language: Английский

Citations

0

The Versatility of Sirtuin-1 in Endocrinology and Immunology DOI Creative Commons
Fahmida Rasha,

Brianyell McDaniel Mims,

Isabel Castro‐Piedras

et al.

Frontiers in Cell and Developmental Biology, Journal Year: 2020, Volume and Issue: 8

Published: Nov. 19, 2020

Sirtuins belong to the class III family of NAD-dependent histone deacetylases (HDAC) and are involved in diverse physiological processes that range from regulation metabolism endocrine function coordination immunity cellular responses stress. Sirtuin-1 (SIRT1) is most well-studied member has been shown be critically epigenetics, immunology, endocrinology. The versatile roles SIRT1 include energy sensing metabolic homeostasis, deacetylation non-histone proteins numerous tissues, neuro-endocrine via stimulation hypothalamus-pituitary axes, synthesis maintenance reproductive hormones steroidogenesis, innate adaptive immune system T- B-cell maturation, chronic inflammation autoimmune diseases. Moreover, an appealing target various disease contexts due promise pharmacological and/or natural modulators activity within context immune-related models. In this review we aim provide a broad overview on role particularly endocrinology immunology.

Language: Английский

Citations

28

Dietary availability acutely influences puberty onset via a hypothalamic neural circuit DOI
Teppei Goto, Mitsue Hagihara,

Satsuki Irie

et al.

Neuron, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

0

AMP-activated protein kinase (AMPK) signaling in GnRH neurons links energy status and reproduction DOI
Delphine Franssen, Alexia Barroso, Francisco Ruíz-Pino

et al.

Metabolism, Journal Year: 2020, Volume and Issue: 115, P. 154460 - 154460

Published: Dec. 4, 2020

Language: Английский

Citations

27