434 results match your criteria estrogen brain-derived


Coupling of GPR30 mediated neurogenesis and protection with astroglial Aromatase-STAT3 signaling in rat hippocampus after global cerebral ischemia.

Mol Cell Endocrinol 2021 Jul 15;535:111394. Epub 2021 Jul 15.

School of Public Health of North China University of Science and Technology, Tangshan, Hebei, 063210, China; Dementia and Dyscognitive Key Lab, Tangshan, Hebei, 063000, China; International Science & Technology Cooperation Base of Geriatric Medicine, Tangshan, Hebei, 063000, China; School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei, 063210, China. Electronic address:

Our previous study revealed that G-protein-coupled estrogen receptor-30 (GPR30) agonist G1 serves as a viable alternative neuroprotectant of 17β-estradiol (E2) to attenuate neuroinflammation and improve cognitive function after global cerebral ischemia (GCI). Aromatase, the key enzyme of E2 biosynthesis, is widely expressed in animal and human brain, and its expression and activity are mediated by selective estrogen receptor modulators. In the present study, we explored the long-term protective and reparative effects of G1 in ovariectomized rats after GCI. Read More

View Article and Full-Text PDF

Marijuana and β-estradiol interactions on spatial learning and memory in young female rats: Lack of role of the G protein-coupled estrogen receptor (GPR30).

Life Sci 2021 Sep 16;280:119723. Epub 2021 Jun 16.

Department of Physiology, Bam University of Medical Sciences, Bam, Iran.

It has been shown that 17β-estradiol (E2) hormone is an essential biological factor for increasing the sensitivity of women to drug abuse. Recent studies have shown a potential overlap between the molecular pathways of cannabinoids and ovarian hormones. The current study evaluated the interference between the marijuana and E2 effect on spatial learning and memory and the role of the G protein-coupled estrogen receptor (GPR30) in young female rats. Read More

View Article and Full-Text PDF
September 2021

Erxian Decoction, a famous Chinese medicine formula, ameliorate depression-like behavior in perimenopausal mice.

Endocr Metab Immune Disord Drug Targets 2021 Jun 17. Epub 2021 Jun 17.

Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, China.

Aims: The present study was performed in order to find out the anti-depression effect of Erxian Decoction in perimenopausal mice.

Background: Erxian Decoction (EXD) has been used in folk medicine for the treatment of perimenopausal syndrome, but it has not been researched on perimenopausal depression.

Objective: The present study aimed to evaluate the effect of extraction of Erxian Decoction on perimenopausal depressive mice. Read More

View Article and Full-Text PDF

Exercise and estrogen: common pathways in Alzheimer's disease pathology.

Am J Physiol Endocrinol Metab 2021 Jul 31;321(1):E164-E168. Epub 2021 May 31.

Department of Health Sciences, grid.411793.9Brock University, St. Catharines, Ontario, Canada.

Alzheimer's disease (AD) is a neurodegenerative disease that is characterized by progressive declines in cognitive function. Current epidemiological data indicate significant sex-linked disparities, where females have a higher risk of developing AD compared with male counterparts. This disparity necessitates further investigations to uncover the pathological and molecular factors influencing these sex differences. Read More

View Article and Full-Text PDF

Estrogen administration attenuates post-stroke depression by enhancing CREB/BDNF/TrkB signaling in the rat hippocampus.

Exp Ther Med 2021 May 26;21(5):433. Epub 2021 Feb 26.

Department of Neurology, First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China.

A previous study demonstrated that 17β-estradiol (E2), which is an antidepressant, can ameliorate post-stroke depression (PSD); however, the underlying mechanisms governing this remain largely unknown. Therefore, the present study developed a PSD model in rats, which was induced by left middle cerebral artery occlusion followed by exposure to chronic mild stress for 2 weeks. The results revealed that the activity of the cAMP response element-binding protein (CREB), a cellular transcription factor, and the associated brain-derived neurotrophic factor (BDNF)/tyrosine kinase B (TrkB) signaling were all attenuated in the hippocampus in PSD rats. Read More

View Article and Full-Text PDF

Selective ER-β agonists alleviate neuronal deficits in insulin-resistant estrogen-deficient rats.

Authors:
S Bansal K Chopra

Climacteric 2021 Aug 10;24(4):415-420. Epub 2021 Mar 10.

University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India.

Objective: The present study aimed to determine the effect of estrogen receptor (ER) agonists on depression and memory impairment in insulin-resistant ovariectomized (OVX) rats.

Methods: Rats underwent bilateral ovariectomy, and low-dose streptozotocin (STZ) and a high-fat diet (58% fat, 25% protein, and 17% carbohydrates as a percentage of kilocalories) were administered to induce an estrogen-deficient insulin-resistant state. After 1 week of STZ administration, rats were treated with 17β-estradiol (17βE2) and selective ER-α (propylpyrazoletriol) and ER-β (diarylpropionitrile) agonists (10 μg/kg subcutaneously). Read More

View Article and Full-Text PDF

Estrogen and serotonin enhance stress-induced visceral hypersensitivity in female rats by up-regulating brain-derived neurotrophic factor in spinal cord.

Neurogastroenterol Motil 2021 Mar 11:e14117. Epub 2021 Mar 11.

Division of Gastroenterology and Hepatology, Internal Medicine, University of Texas Medical Branch, Galveston, TX, USA.

Background: We previously reported that female offspring of dams subjected to chronic prenatal stress (CPS) develop enhanced visceral hypersensitivity (VHS) following exposure to chronic stress in adult life that is mediated by up-regulation of spinal cord BDNF. The aims of this study were to examine the roles of estrogen receptor alpha (ERα) and an increase in spinal serotonin signaling in promoting this enhanced VHS in female rats and up-regulation of spinal cord BDNF transcription.

Methods: Pregnant dams were exposed to chronic stress from E11 until delivery. Read More

View Article and Full-Text PDF

Long non-coding RNAs: From disease code to drug role.

Acta Pharm Sin B 2021 Feb 10;11(2):340-354. Epub 2020 Oct 10.

State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.

Enormous studies have corroborated that long non-coding RNAs (lncRNAs) extensively participate in crucial physiological processes such as metabolism and immunity, and are closely related to the occurrence and development of tumors, cardiovascular diseases, nervous system disorders, nephropathy, and other diseases. The application of lncRNAs as biomarkers or intervention targets can provide new insights into the diagnosis and treatment of diseases. This paper has focused on the emerging research into lncRNAs as pharmacological targets and has reviewed the transition of lncRNAs from the role of disease coding to acting as drug candidates, including the current status and progress in preclinical research. Read More

View Article and Full-Text PDF
February 2021

Influence of progestational stress on BDNF and NMDARs in the hippocampus of male offspring and amelioration by Chaihu Shugan San.

Biomed Pharmacother 2021 Mar 4;135:111204. Epub 2021 Feb 4.

School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China; Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou, 510632, Guangdong, China. Electronic address:

Background: Progestational stress has been proven to be a risk for the neural development of offspring, especially in the hippocampus. However, whether Chaihu Shugan San (CSS) can ameliorate hippocampal neural development via the regulation of brain-derived neurotrophic factor (BDNF), and N-methyl-D-aspartate receptors (NMDAR) 2A (NR2A) and 2B (NR2B), and the mechanism of such action remains unclear.

Methods: Thirty-six female rats were randomly allocated into control, chronic immobilization stress (CIS) and CSS groups according to the random number table, respectively. Read More

View Article and Full-Text PDF

Estrogen receptor α: a critical role in successful female cognitive aging.

Climacteric 2021 Aug 1;24(4):333-339. Epub 2021 Feb 1.

Neuroscience Program, Tulane University, New Orleans, LA, USA.

Due to potential health risks, current recommendations are that individuals who wish to use hormone therapy to treat menopausal symptoms do so for the shortest period of time possible. In our investigation into how short-term use of estrogens in midlife following loss of ovarian function exerts long-term effects on female cognitive aging in rodents, we discovered a link between the ability of previous exposure to estradiol to enhance memory in the long term and its ability to increase estrogen receptor α (ERα) levels in the hippocampus, a brain area important for memory. Follow-up studies in model systems implicate a role for ERα in enhanced cognitive function independent of ovarian or exogenously administered estrogens. Read More

View Article and Full-Text PDF

Beneficial effects of atorvastatin on sex-specific cognitive impairment induced by a cerebral microhaemorrhage in mice.

Br J Pharmacol 2021 04;178(7):1705-1721

Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S1172, Pharmacology Department, Degenerative and Vascular Cognitive Disorders, Lille, F-59000, France.

Background And Purposes: Cerebral microhaemorrhages (CMHs) are associated with cognitive decline in humans. In rodents, CMHs induces cognitive impairment in male mice along with sex-specific cortical and hippocampal changes affecting neural, glial and vascular functions. Statins, have been proposed to prevent cognitive decline. Read More

View Article and Full-Text PDF

ERRγ ligand HPB2 upregulates BDNF-TrkB and enhances dopaminergic neuronal phenotype.

Pharmacol Res 2021 03 9;165:105423. Epub 2021 Jan 9.

College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Pocheon, Gyeonggi-do 11160, Republic of Korea. Electronic address:

Brain derived neurotrophic factor (BDNF) promotes maturation of dopaminergic (DAergic) neurons in the midbrain and positively regulates their maintenance and outgrowth. Therefore, understanding the mechanisms regulating the BDNF signaling pathway in DAergic neurons may help discover potential therapeutic strategies for neuropsychological disorders associated with dysregulation of DAergic neurotransmission. Because estrogen-related receptor gamma (ERRγ) is highly expressed in both the fetal nervous system and adult brains during DAergic neuronal differentiation, and it is involved in regulating the DAergic neuronal phenotype, we asked in this study whether ERRγ ligand regulates BDNF signaling and subsequent DAergic neuronal phenotype. Read More

View Article and Full-Text PDF

17β-estradiol activation of dorsal hippocampal TrkB is independent of increased mature BDNF expression and is required for enhanced memory consolidation in female mice.

Psychoneuroendocrinology 2021 03 15;125:105110. Epub 2020 Dec 15.

Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI 53211 USA. Electronic address:

The potent estrogen 17β-estradiol (E) is known to enhance hippocampal memory and plasticity, however the molecular mechanisms underlying these effects remain unclear. Brain derived neurotrophic factor (BDNF) and its receptor tropomyosin receptor kinase B (TrkB) are regulated by E, but the potential mechanistic roles of neurotrophic signaling in E-induced enhancement of memory are not well understood. Here, we examined the effects of hippocampal TrkB signaling on E-induced enhancement of memory consolidation in the object placement and recognition tasks. Read More

View Article and Full-Text PDF

Crosstalk between the muscular estrogen receptor α and BDNF/TrkB signaling alleviates metabolic syndrome via 7,8-dihydroxyflavone in female mice.

Mol Metab 2021 03 19;45:101149. Epub 2020 Dec 19.

Department of Food Science and Nutrition, School of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, China. Electronic address:

Objective: 7,8-Dihydroxyflavone (7,8-DHF), a small molecular mimetic of brain-derived neurotrophic factor (BDNF), alleviates high-fat diet-induced obesity in female mice in a sex-specific manner by activating muscular tropomyosin-related kinase B (TrkB). However, the underlying molecular mechanism for this sex difference is unknown. Moreover, muscular estrogen receptor α (ERα) plays a critical role in metabolic diseases. Read More

View Article and Full-Text PDF

Brain-Derived Neurotrophic Factor Regulates Ishikawa Cell Proliferation through the TrkB-ERK1/2 Signaling Pathway.

Biomolecules 2020 12 8;10(12). Epub 2020 Dec 8.

College of Animal Sciences, Jilin University, Changchun 130062, China.

(1) Background: Endometrial regulation is a necessary condition for maintaining normal uterine physiology, which is driven by many growth factors. Growth factors produced in the endometrium are thought to be related to the proliferation of endometrial cells induced by estradiol-17β (E). In this study, we found that E can induce the secretion of brain-derived neurotrophic factor (BDNF) in Ishikawa cells (the cells of an endometrial cell line). Read More

View Article and Full-Text PDF
December 2020

Quercetin exerts antidepressant and cardioprotective effects in estrogen receptor α-deficient female mice via BDNF-AKT/ERK1/2 signaling.

J Steroid Biochem Mol Biol 2021 02 24;206:105795. Epub 2020 Nov 24.

College of Pharmacy, Jinan University, Guangzhou 510632, China. Electronic address:

Brain-derived neurotrophic factor (BDNF) is the potential link between depression and cardiovascular disease and estrogen receptor α (ERα), an estrogen-mediated major regulator, plays an important role in protecting against depression and cardiovascular disease. However, the relationship between BDNF and ERα remains obscure. Herein, quercetin (QUE), a kind of plant flavonoids and existed in many vegetables and fruits, was found to simultaneously reverse ERα-induced depression-like and cardiac dysfunction by reducing immobility time in the tail suspension test (TST) and forced swimming test (FST), and decreasing systolic blood pressure and activating the apoptosis-related proteins, BDNF, tropomyosin-related kinase B (TrkB), protein kinase B (AKT), and extracellular regulatory protein kinase (ERK1/2) in the hippocampal and cardiac tissues of female mice. Read More

View Article and Full-Text PDF
February 2021

Long-term supplementation of dehydroepiandrosterone improved depressive-like behaviors by increasing BDNF expression in the hippocampus in ovariectomized rats.

Heliyon 2020 Oct 8;6(10):e05180. Epub 2020 Oct 8.

Department of Gynaecology and Obstetrics, Ningbo Medical Treatment Center, Affiliated Lihuili Hospital of Ningbo University, Ningbo, 315040, PR China.

Objective: Dehydroepiandrosterone (DHEA), a precursor of estrogen, partially exhibits its biological effect after conversion to estrogen. Its biological significance in perimenopausal depressive disorder or postpartum depression remains unknown. Here, we observed the effects of long-term supplementation of DHEA on depression-like behaviors in ovariectomized rats. Read More

View Article and Full-Text PDF
October 2020

Neuroprotective and Preventative Effects of Molecular Hydrogen.

Curr Pharm Des 2021 ;27(5):585-591

Center for Mitochondrial Biology and Medicine and Center for Translational Medicine, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.

One of the beneficial effects of molecular hydrogen (H, hydrogen gas) is neuroprotection and prevention of neurological disorders. It is important and useful if taking H every day can prevent or ameliorate the progression of neurodegenerative disorders, such as Parkinson's disease or Alzheimer's disease, both lacking specific therapeutic drugs. There are several mechanisms of how H protects neuronal damage. Read More

View Article and Full-Text PDF

Catechol-O-Methyltransferase Gene Polymorphisms and the Risk of Chemotherapy-Induced Prospective Memory Impairment in Breast Cancer Patients with Varying Tumor Hormonal Receptor Expression.

Med Sci Monit 2020 Sep 28;26:e923567. Epub 2020 Sep 28.

Department of Radiation Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland).

BACKGROUND Existing research evidence indicates that breast cancer patients have different degrees of cognitive dysfunction after chemotherapy, and polymorphisms in 3 genes (catechol-O-methyltransferase, COMT; apolipoprotein E, APOE; and brain-derived neurotrophic factor, BDNF) have been associated with cognitive impairment. However, the role of these 3 gene polymorphisms in modulating cognitive impairment in breast cancer survivors with varying hormonal receptor expression is not clear at present. To explore the effects of genetic polymorphisms in BDNF, APOE, and COMT on the regulation of prospective memory impairments induced by chemotherapy in breast cancer patients with various expression levels of estrogen receptor (ER) and progesterone receptor (PR). Read More

View Article and Full-Text PDF
September 2020

Supplementation of fenugreek with choline-docosahexaenoic acid attenuates menopause induced memory loss, BDNF and dendritic arborization in ovariectomized rats.

Anat Sci Int 2021 Mar 17;96(2):197-211. Epub 2020 Sep 17.

Department of Biochemistry, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, 576104, India.

Cognitive impairment due to natural or surgical menopause is always associated with estrogen deficiency leading to reduced brain-derived neurotrophic factor (BDNF). Reduced BDNF levels in menopause affect neuronal maturation, survival, axonal and dendritic arborization and the maintenance of dendritic spine density. Conventional long-term estrogen replacement therapy reported causing the risk of venous thromboembolism and breast cancer. Read More

View Article and Full-Text PDF

Good or not good: Role of miR-18a in cancer biology.

Rep Pract Oncol Radiother 2020 Sep-Oct;25(5):808-819. Epub 2020 Aug 12.

Laboratory of Cancer Genetics, Greater Poland Cancer Centre, Poznan, Poland.

miR-18a is a member of primary transcript called miR-17-92a (C13orf25 or MIR17HG) which also contains five other miRNAs: miR-17, miR-19a, miR-20a, miR-19b and miR-92a. This cluster as a whole shows specific characteristics, where miR-18a seems to be unique. In contrast to the other members, the expression of miR-18a is additionally controlled and probably functions as its own internal controller of the cluster. Read More

View Article and Full-Text PDF

Beneficial Effect of Genistein on Diabetes-Induced Brain Damage in the ob/ob Mouse Model.

Drug Des Devel Ther 2020 17;14:3325-3336. Epub 2020 Aug 17.

Department of Nutrition, Dietetics and Hospitality Management, Auburn University, Auburn, AL 36849, USA.

Purpose: Diabetes mellitus (DM)-induced brain damage is characterized by cellular, molecular and functional changes. The mechanisms include oxidative stress, neuroinflammation, reduction of neurotrophic factors, insulin resistance, excessive amyloid beta (Aβ) deposition and Tau phosphorylation. Both antidiabetic and neuroprotective effects of the phytoestrogen genistein have been reported. Read More

View Article and Full-Text PDF

Bisphenol A and its analogues: A comprehensive review to identify and prioritize effect biomarkers for human biomonitoring.

Environ Int 2020 11 28;144:105811. Epub 2020 Aug 28.

Univ Rennes, EHESP, Inserm, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France. Electronic address:

Human biomonitoring (HBM) studies have demonstrated widespread and daily exposure to bisphenol A (BPA). Moreover, BPA structural analogues (e.g. Read More

View Article and Full-Text PDF
November 2020

Effects of treadmill exercise and sex hormones on learning, memory and hippocampal brain-derived neurotrophic factor levels in transient congenital hypothyroid rats.

Behav Pharmacol 2020 10;31(7):641-651

Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran.

Transient thyroid function abnormalities at birth exhibit intellectual developmental and cognitive disorders in adulthood. Given the well-known effects of physical activity and sex hormones on cognitive functions and brain-derived neurotrophic factor (BDNF), the present study examined the effects of treadmill exercise, sex hormones, and the combined treatment on learning and memory and hippocampal BDNF levels in transient congenital hypothyroid rats. To induce hypothyroidism, 6-propyl-2-thiouracil was added to the drinking water from the 6th day of gestation to the 21st postnatal day (PND). Read More

View Article and Full-Text PDF
October 2020

Neuron-Derived Estrogen Is Critical for Astrocyte Activation and Neuroprotection of the Ischemic Brain.

J Neurosci 2020 09 19;40(38):7355-7374. Epub 2020 Aug 19.

Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia 30912

17β-Estradiol (E2) is produced from androgens via the action of the enzyme aromatase. E2 is known to be made in neurons in the brain, but the functions of neuron-derived E2 in the ischemic brain are unclear. Here, we used a forebrain neuron-specific aromatase KO (FBN-ARO-KO) mouse model to deplete neuron-derived E2 in the forebrain and determine its roles after global cerebral ischemia. Read More

View Article and Full-Text PDF
September 2020

Effects of calyces on spatial memory and hippocampal expression of BDNF in ovariectomized rats.

Nutr Neurosci 2020 Aug 13:1-11. Epub 2020 Aug 13.

Laboratorio de Morfología, Universidad de Guadalajara, Zapopan, México.

Ovarian hypofunction is characterized by decay in brain-derived neurotrophic factor (BDNF), a neurotrophin associated with cognitive and memory function. Hormone replacement therapy is the most common treatment to counteract the negative effects of ovarian insufficiency; however, this therapy may increase the odds of endometrial cancer, blood clots, stroke, and breast cancer. Therefore, a safer alternative to synthetic estrogens is needed. Read More

View Article and Full-Text PDF

Dysregulation of prostaglandine E2 and BDNF signaling mediated by estrogenic dysfunction induces primary hippocampal neuronal cell death after single and repeated paraquat treatment.

Food Chem Toxicol 2020 Oct 30;144:111611. Epub 2020 Jul 30.

Department of Pharmacology and Toxicology, Veterinary School, Complutense University of Madrid, 28040, Madrid, Spain. Electronic address:

Paraquat (PQ) produces hippocampal neuronal cell death and cognitive dysfunctions after unique and continued exposure, but the mechanisms are not understood. Primary hippocampal wildtype or βAPP-Tau silenced cells were co-treated with PQ with or without E2, N-acetylcysteine (NAC), NS-398 (cyclooxygenase-2 inhibitor), MF63 (PGES-1 inhibitor) and/or recombinant brain-derived neurotrophic factor (BDNF) during one- and fourteen-days to studied PQ effect on prostaglandin E2 (PGE2) and BDNF signaling and their involvement in hyperphosphorylated Tau (pTau) and amyloid-beta (Aβ) protein formation, and oxidative stress generation, that lead to neuronal cell loss through estrogenic disruption, as a possible mechanism of cognitive dysfunctions produced by PQ. Our results indicate that PQ overexpressed cyclooxygenase-2 that leads to an increase of PGE2 and alters the expression of EP1-3 receptor subtypes. Read More

View Article and Full-Text PDF
October 2020

Essential and sex-specific effects of mGluR5 in ventromedial hypothalamus regulating estrogen signaling and glucose balance.

Proc Natl Acad Sci U S A 2020 08 27;117(32):19566-19577. Epub 2020 Jul 27.

Graduate Program in Neuroscience, Graduate School of Biomedical Sciences, Tufts University School of Medicine, Boston, MA 02111;

The ventromedial hypothalamus (VMH) plays chief roles regulating energy and glucose homeostasis and is sexually dimorphic. We discovered that expression of metabotropic glutamate receptor subtype 5 (mGluR5) in the VMH is regulated by caloric status in normal mice and reduced in brain-derived neurotrophic factor (BDNF) mutants, which are severely obese and have diminished glucose balance control. These findings led us to investigate whether mGluR5 might act downstream of BDNF to critically regulate VMH neuronal activity and metabolic function. Read More

View Article and Full-Text PDF

Quercetin alleviates cognitive decline in ovariectomized mice by potentially modulating histone acetylation homeostasis.

J Nutr Biochem 2020 10 1;84:108439. Epub 2020 Jun 1.

National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, SAS, Nagar, Punjab, India. Electronic address:

The synergism between estrogen and histone tail acetylation-mediated memory formation is not clearly understood. Here, we attempt to study the altered histone acetylation homeostasis mediated changes in cognition following ovariectomy and evaluate the protective effect of quercetin. A significant reduction in estradiol levels with subsequent depletion in spatial memory and learning functions assessed by Morris water maze, novel object recognition test and elevated plus maze was observed in ovariectomized (OVX) mice. Read More

View Article and Full-Text PDF
October 2020