ArticleMolecular neurobiology2020
Loss of Estrogen Efficacy Against Hippocampus Damage in Long-Term OVX Mice Is Related to the Reduction of Hippocampus Local Estrogen Production and Estrogen Receptor Degradation.
Article in Molecular neurobiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 17 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
17 citing papers in PubMed, 32 citations in OpenAlex.
- Exercise and Brain Health in Postmenopausal Women: A Review of Cognitive Benefits, Mechanisms, and Neurodegeneration Prevention.NeuroSci · 2026Review
- Divergent impacts of estradiol/testosterone reduction on biological aging: optimal HRT window in females recommended.Biology of sex differences · 2026Article
- Estrogen Alleviates Sevoflurane-Induced Neurotoxicity by Inhibiting ERα-Tau Binding.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Trajectories and related factors of subjective cognitive function in patients living with breast cancer receiving postoperative chemotherapy: a latent class growth model study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2025Article
- The regulation mechanism of perceived stress on cognitive function of patients with breast cancer undergoing chemotherapy: a multiple mediation analysis.Breast cancer research and treatment · 2025Article
- Sexual Dimorphism in Levodopa-Induced Dyskinesia Following Parkinson's Disease: Uncharted Territory.The European journal of neuroscience · 2025Review
- Neuroestrogens, the hippocampus, and female cognitive aging.Hormones and behavior · 2025Review
- Lesion of the ventral or dorsal hippocampus in the rat delays puberty, follicular growth and secretion of sex steroid hormones.Frontiers in endocrinology · 2025Article
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- Deciphering the Influence of Estradiol and Estrogen Receptors on Cognitive Function: A Bibliometric Analysis and Emerging Research Trends.Medical science monitor : international medical journal of experimental and clinical research · 2023Article
- 17β-Estradiol Suppresses Gastric Inflammatory and Apoptotic Stress Responses and Restores nNOS-Mediated Gastric Emptying in Streptozotocin (STZ)-Induced Diabetic Female Mice.Antioxidants (Basel, Switzerland) · 2023Article
- Involvement of baroreflex deficiency in the age-related loss of estrogen efficacy against cerebral ischemia.Frontiers in aging neuroscience · 2023Article
- The Pathological Effects of Circulating Hydrophobic Bile Acids in Alzheimer's Disease.Journal of Alzheimer's disease reports · 2023Review
- History of Previous Midlife Estradiol Treatment Permanently Alters Interactions of Brain Insulin-like Growth Factor-1 Signaling and Hippocampal Estrogen Synthesis to Enhance Cognitive Aging in a Rat Model of Menopause.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022Article
- Ovarian status modulates endocrine and neuroinflammatory responses to a murine mammary tumor.American journal of physiology. Regulatory, integrative and comparative physiology · 2022Article
- Baicalin regulates stem cells as a creative point in the treatment of climacteric syndrome.Frontiers in pharmacology · 2022Review
Corrections and comments
- Erratum issued
Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
Postmenopausal women experience a higher risk for neurodegenerative diseases, including cognitive impairment and ischemic stroke. Many preclinical studies have indicated that estrogen replacement therapy (ERT) may provide protective effects against these neurological diseases. However, the results of Women's Health Initiative (WHI) studies have led to the proposal of "critical period hypothesis," which states that there is a precise window of opportunity for administering beneficial hormone therapy following menopause. However, the underlying molecular mechanisms require further characterization. Here, we explored the effects of ERT on cognition decline and global cerebral ischemia (GCI)-induced hippocampal neuronal damage in mice that had experienced both short-term (ovariectomized (OVX) 1 week) and long-term (OVX 10 weeks) estrogen deprivation. We also further explored the concentration of 17β-estradiol (E2) in the circulation and hippocampus and the expression of aromatase and estrogen receptors (ERα, ERα-Ser118, and ERβ). We found that the neuroprotective effectiveness of ERT against hippocampus damage exhibited in OVX1w mice was totally absent in OVX10w mice. Interestingly, the concentration of hippocampal E2 was irreversibly reduced in OVX10w mice, which was related to the decrease of aromatase expression in the hippocampus. In addition, long-term estrogen deprivation (LTED) led to a decrease in estrogen receptor proteins in the hippocampus. Thus, we concluded that the loss of ERT neuroprotection against hippocampus injury in LTED mice was related to the reduction in hippocampus E2 production and estrogen receptor degradation. These results provide several intervention targets to restore the effectiveness of ERT neuroprotection in elderly post-menopausal women.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.