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Effects of early midlife ovarian removal on sleep: Polysomnography-measured cortical arousal, homeostatic drive, and spindle characteristics

Author(s): Brown A; Gervais NJ; Gravelsins L; O' Byrne J; Calvo N; Ramana S; Shao Z; Bernardini M; Jacobson M; Rajah MN; Einstein G;

Bilateral salpingo-oophorectomy (BSO; removal of ovaries and fallopian tubes) prior to age 48 is associated with elevated risk for both Alzheimer's disease (AD) and sleep disorders such as insomnia and sleep apnea. In early midlife, individuals with BSO show reduced hippocampal volume, functi ...

Article GUID: 39178647


17β-Estradiol reduces inhibitory synaptic currents in entorhinal cortex neurons through G protein-coupled estrogen receptor-1 activation of extracellular signal-regulated kinase

Author(s): Batallán Burrowes AA; Moisan É; Garrone A; Buynack LM; Chapman CA;

Estrogens are believed to modulate cognitive functions in part through the modulation of synaptic transmission in the cortex and hippocampus. Administration of 17ß-estradiol (E2) can rapidly enhance excitatory synaptic transmission in the hippocampus and facilitate excitatory synaptic transmission in rat lateral entorhinal cortex via activation of the G p ...

Article GUID: 39150316


17β-Estradiol-Loaded Exosomes for Targeted Drug Delivery in Osteoporosis: A Comparative Study of Two Loading Methods

Author(s): Gholami Farashah MS; Javadi M; Soleimani Rad J; Shakouri SK; Asnaashari S; Dastmalchi S; Nikzad S; Roshangar L;

Purpose: Exosomes are natural nanoparticles that participate in intercellular communication through molecular transport. Recently, due to their membrane vesicular structure and surface proteins, exosomes have been used extensively in the research field of drug delivery. Osteoporosis is an inflamm ...

Article GUID: 38022800


Combined effects of the contraceptive hormones, ethinyl estradiol and levonorgestrel, on the use of place and response memory in gonadally-intact female rats

Author(s): Lacasse JM; Boulos V; Fisher C; Hamilton S; Heron M; Mac Cionnaith CE; Peronace V; Tito N; Brake WG;

During maze navigation rats can rely on hippocampus-mediated place memory or striatum-mediated response memory. Ovarian hormones bias whether females use place or response memory to reach a reward. Here, we investigated the impact of the contraceptive hormones, ethinyl estradiol (EE) and levonorg ...

Article GUID: 36403510


Modeling hormonal contraception in female rats: a framework for studies in behavioral neurobiology

Author(s): Lacasse JM; Gomez-Perales E; Brake WG;

Research on hormonal contraceptives (HC) in animal models is lacking, and as a result, so is our understanding of the impact of HC on the brain and behavior. Here, we provide a review of the pharmacology of HC, as well as the methodology and best practices for designing a model of HC in female rats. We outline specific methodological considerations regard ...

Article GUID: 35952797


Progesterone rapidly alters the use of place and response memory during spatial navigation in female rats

Author(s): Lacasse JM; Patel S; Bailey A; Peronace V; Brake WG;

17ß-Estradiol (E2) and progesterone (P) influence place and response memory in female rats in spatial navigation tasks. Use of these memory systems is associated with the hippocampus and the dorsal striatum, respectively. Injections of E2 result in a well-established bias to use place memory, while much less is understood about the role of P. A total of 1 ...

Article GUID: 35158200


Depression, Estrogens, and Neuroinflammation: A Preclinical Review of Ketamine Treatment for Mood Disorders in Women

Author(s): Gagne C; Piot A; Brake WG;

Ketamine has been shown to acutely and rapidly ameliorate depression symptoms and suicidality. Given that women suffer from major depression at twice the rate of men, it is important to understand how ketamine works in the female brain. This review explores three themes. First, it examines our current understanding of the etiology of depression in women. ...

Article GUID: 35115970


The non-aromatizable androgen dihydrotestosterone (DHT) facilitates sexual behavior in ovariectomized female rats primed with estradiol.

Author(s): Maseroli E, Santangelo A, Lara-Fontes B, Quintana GR, Mac Cionnaith CE, Casarrubea M, Ricca V, Maggi M, Vignozzi L, Pfaus JG

Psychoneuroendocrinology. 2020 Feb 07;115:104606 Authors: Maseroli E, Santangelo A, Lara-Fontes B, Quintana GR, Mac Cionnaith CE, Casarrubea M, Ricca V, Maggi M, Vignozzi L, Pfaus JG

Article GUID: 32087523


Aromatization Is Not Required for the Facilitation of Appetitive Sexual Behaviors in Ovariectomized Rats Treated With Estradiol and Testosterone.

Author(s): Jones SL, Rosenbaum S, Gardner Gregory J, Pfaus JG

Front Neurosci. 2019;13:798 Authors: Jones SL, Rosenbaum S, Gardner Gregory J, Pfaus JG

Article GUID: 31447629


High estrogen and chronic haloperidol lead to greater amphetamine-induced BOLD activation in awake, amphetamine-sensitized female rats.

Author(s): Madularu D, Kulkarni P, Yee JR, Kenkel WM, Shams WM, Ferris CF, Brake WG

Horm Behav. 2016 06;82:56-63 Authors: Madularu D, Kulkarni P, Yee JR, Kenkel WM, Shams WM, Ferris CF, Brake WG

Article GUID: 27154458


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