The researchers discovered an important difference between male and female rats in the amount of dopamine released after a dose of fentanyl. Females produced the same amount of dopamine from ...

According to a new study by WashU Medicine researchers, male and female rats with a chronic pain ... treating male rats with the hormone estrogen led to them maintain a steady level of fentanyl ...

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Brain cells (magenta) in the reward center of a rat's brain release dopamine in response to opioids. According to a new study by WashU Medicine researchers, male and female rats with a chronic pain ...

The study showed that male rats in chronic pain gave themselves increasing doses of an opioid—specifically, fentanyl—over time, while female rats ... male rats with the hormone estradiol ...

Discover the best menstrual cycle foods for the “four seasons” of the female hormone cycle, according to a registered dietitian.

while female rats with the same pain condition kept their intake at a constant level, similar to what is seen in people. The behavioral difference was driven by sex hormones, the researchers found: ...

uws.ac.uk Objectives To explore athletes’ past and current experiences and perceptions of the menstrual cycle in relation to its impact on sporting performance. Methods 15 international female rugby ...

The lack of female role models in leadership positions can perpetuate the cycle of underrepresentation. Women may not see pathways to political careers without visible examples of successful ...

After losing volume between morning and evening, the brain resets overnight, starting the cycle again. The study revealed that, throughout the day, the subject's overall brain volume decreased, as did ...

This particular estrogen is made in the brains of both males and females, and it doesn't follow the same cycle as estrogen made by the female reproductive system.

In this detailed study, Cohen and Ben-Shaul characterized Accessory Olfactory Bulb (AOB) cell responses to various conspecific urine samples in female mice across the estrous cycle. The authors found ...