Wednesday, January 25, 2023
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A recent study found that the hearts of men and women respond differently to the stress hormone noradrenaline.
A research team from the California Davis College of Medicine, USA, used a new optical imaging system to measure the response of the hearts of experimental mice to hormones and neurotransmitters in a timely manner.
In the framework of the research, rats were injected with the hormone noradrenaline, which is naturally secreted by the body in cases of stress, anger and panic.
The study, published in the scientific journal “Science Advances”, showed that the hearts of male and female mice initially react consistently when exposed to the hormone noradrenaline, but the hearts of female mice return to normal faster than the hearts of men, which leads to a difference in the pattern of electrical activity in the hearts. Genders.
And the “Medical Express” website, which specializes in medical research, quoted Jessica Caldwell, head of the study team and researcher in the Department of Pharmacology at the University of California Davis, as saying, “The difference that we noticed in the electrical activity of the heart between men and women is called “repolarization” and refers to the method of restoring the heart. to its normal position between one pulse and the next, and this phenomenon is associated with some irregular heartbeat problems.
Caldwell added: “We know that there are differences between the sexes in terms of the consequences of the incidence of the problem of arrhythmia, and this study revealed a new factor that helps explain this difference.”
Heart disease is a leading cause of death in the United States, accounting for 25% of men and 20% of women in 2020. Although heart disease affects both sexes, most research on this serious health problem on a larger scale focuses on male patients.