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Jan 21, 2023

Female and male hearts respond differently to stress hormone in mouse study

Posted by in category: futurism

A new study published in Science Advances shows female and male hearts respond differently to the stress hormone noradrenaline. The study in mice may have implications for human heart disorders like arrhythmias and heart failure and how different sexes respond to medications.

The team built a new type of fluorescence imaging system that allows them to use light to see how a mouse responds to hormones and neurotransmitters in real time. The were exposed to noradrenaline, also known as norepinephrine. Noradrenaline is both a neurotransmitter and hormone associated with the body’s “fight or flight” response.

The results reveal that male and female mouse hearts respond uniformly at first after exposure to noradrenaline. However, some areas of the female heart return to normal more quickly than the male heart, which produces differences in the heart’s .

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