{"title":"Reproduction under Siege: How Chronic Stress Hijacks the HPG Axis?","authors":"Duo Xu, Xu Zhao, Wanxin Chen, Yi Liu, Chaohu Wang","doi":"10.1159/000553429","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Chronic stress profoundly disrupts homeostasis, with the hypothalamic-pituitary-gonadal (HPG) axis emerging as an active integrator rather than a passive target in stress pathophysiology.</p><p><strong>Summary: </strong>This review synthesizes evidence that chronic stress acts on the HPG axis at multiple levels: hypothalamic-pituitary-adrenal (HPA)-derived corticotropin-releasing hormone and glucocorticoids suppress the gonadotropin-releasing hormone (GnRH) pulse generator through kisspeptin/KNDy and gonadotropin-inhibitory hormone pathways; sympathetic overdrive impairs gonadal steroidogenesis while parasympathetic tone declines; and metabolic-inflammatory crosstalk amplifies suppression. The resulting decline in sex steroids - estradiol, progesterone, and testosterone - creates sex-specific vicious cycles that further dysregulate stress and immune circuits, contributing to affective, reproductive, and neurodegenerative disorders.</p><p><strong>Key messages: </strong>The HPG axis serves as a critical hub integrating stress signals, and its suppression is an active, regulated process with distinct sex differences. Hormone-based interventions, including estrogen, neurosteroid analogs, and testosterone, show therapeutic promise for stress-related conditions, and future research should focus on the neural circuits and molecular switches that govern HPA-HPG crosstalk to enable personalized, neuroendocrine-informed therapies.</p>","PeriodicalId":19117,"journal":{"name":"Neuroendocrinology","volume":" ","pages":"1-21"},"PeriodicalIF":2.4000,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13506153/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Neuroendocrinology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1159/000553429","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENDOCRINOLOGY & METABOLISM","Score":null,"Total":0}
引用次数: 0
Abstract
Background: Chronic stress profoundly disrupts homeostasis, with the hypothalamic-pituitary-gonadal (HPG) axis emerging as an active integrator rather than a passive target in stress pathophysiology.
Summary: This review synthesizes evidence that chronic stress acts on the HPG axis at multiple levels: hypothalamic-pituitary-adrenal (HPA)-derived corticotropin-releasing hormone and glucocorticoids suppress the gonadotropin-releasing hormone (GnRH) pulse generator through kisspeptin/KNDy and gonadotropin-inhibitory hormone pathways; sympathetic overdrive impairs gonadal steroidogenesis while parasympathetic tone declines; and metabolic-inflammatory crosstalk amplifies suppression. The resulting decline in sex steroids - estradiol, progesterone, and testosterone - creates sex-specific vicious cycles that further dysregulate stress and immune circuits, contributing to affective, reproductive, and neurodegenerative disorders.
Key messages: The HPG axis serves as a critical hub integrating stress signals, and its suppression is an active, regulated process with distinct sex differences. Hormone-based interventions, including estrogen, neurosteroid analogs, and testosterone, show therapeutic promise for stress-related conditions, and future research should focus on the neural circuits and molecular switches that govern HPA-HPG crosstalk to enable personalized, neuroendocrine-informed therapies.
期刊介绍:
''Neuroendocrinology'' publishes papers reporting original research in basic and clinical neuroendocrinology. The journal explores the complex interactions between neuronal networks and endocrine glands (in some instances also immunecells) in both central and peripheral nervous systems. Original contributions cover all aspects of the field, from molecular and cellular neuroendocrinology, physiology, pharmacology, and the neuroanatomy of neuroendocrine systems to neuroendocrine correlates of behaviour, clinical neuroendocrinology and neuroendocrine cancers. Readers also benefit from reviews by noted experts, which highlight especially active areas of current research, and special focus editions of topical interest.