Intimacy hormone repairs cells after coronary heart assault, discover Michigan researchers

Love actually can mend a damaged coronary heart: ‘Cuddle hormone’ repairs cells broken after a coronary heart assault, examine finds

  • Oxytocin can restore injured coronary heart cells in zebrafish, researchers discovered
  • It may very well be used for human coronary heart injury, with ‘monumental’ advantages to sufferers
  • Longer-lasting medication containing the hormone may overcome its quick lifespan

Falling in love actually can heal a damaged coronary heart, a examine suggests.

Oxytocin is produced by our our bodies once we cuddle, have intercourse, and fall in love. 

Now scientists in Michigan have found it additionally seems to have the flexibility to restore cells in an injured coronary heart.

When somebody suffers a coronary heart assault their cardiomyocetes – which permit it to contract – die off in huge portions.

They’re extremely specialised cells and can’t replenish themselves 

However researchers discovered oxytocin stimulates stem cells within the coronary heart’s outer layer, which migrate to its center layer and switch into cardiomyocytes.

The findings have to date solely been in zebrafish and human cells in a lab. However it’s hoped that someday the love hormone may very well be used to develop a remedy.

Oxytocin is produced by our bodies when we cuddle, have sex, and fall in love. Now scientists believe it can heal damaged heart cells (file image)

Oxytocin is produced by our our bodies once we cuddle, have intercourse, and fall in love. Now scientists consider it may possibly heal broken coronary heart cells (file picture)

Thanks to oxytocin, zebrafish can regrow parts of their heart, and researchers found the cuddle hormone has a similar effect on human tissue.

Due to oxytocin, zebrafish can regrow components of their coronary heart, and researchers discovered the cuddle hormone has an identical impact on human tissue.

Lead writer of the examine Dr Aitor Aguirre, an assistant professor in biology at Michigan State College, stated: ‘Right here we present that oxytocin is able to activating coronary heart restore mechanisms in injured hearts in zebrafish and human cell cultures, opening the door to potential new therapies for coronary heart regeneration in people.’

Cardiomyocetes usually die off in nice numbers after a coronary heart assault and can’t be replenished. 


Oxytocin, often known as the ‘love hormone’, engenders belief and generosity.

The chemical is launched naturally from the mind into the blood of people and different mammals throughout social and sexual behaviours.

It’s produced by girls throughout labour to assist them bond with their child, and stimulates the manufacturing of breast milk.

The chemical can be launched throughout lovemaking, incomes it the nickname ‘the cuddle hormone’.

Different loving touches, from hugging a teddy bear to stroking your pet canine, additionally set off the hormone’s launch.


However earlier analysis has proven that some cells within the coronary heart’s outer layer can endure reprogramming to turn into makeshift cardiomyocetes.

People can’t do that by themselves, nevertheless.

This led the researchers to discover whether or not zebra fish – which have a novel skill to regrow physique components such because the mind, bones and pores and skin – may maintain the important thing.

Whereas they do not undergo coronary heart assaults themselves, their predators are pleased to take a chew out of any organ – together with the guts.

Zebrafish can regenerate as much as 1 / 4 of the organ, resulting from an abundance of cardiomyocetes, and different cells which could be reprogramed. 

Researchers discovered that inside three days of a coronary heart damage, oxytocin ranges rose by as much as 20 occasions within the mind.

Additionally they confirmed the hormone is then straight concerned within the heart-mending course of.

Importantly, oxytocin had an identical impact on human tissue in a check tube.

Dr Aguirre added: ‘Oxytocin is extensively used within the clinic for different causes, so repurposing for sufferers after coronary heart injury is just not a protracted stretch of the creativeness.

‘Even when coronary heart regeneration is barely partial, the advantages for sufferers may very well be monumental.’

The researchers’ subsequent steps can be to have a look at the impact of oxytocin in people after damage to the guts.

The naturally-produced hormone is short-lived within the physique, which means longer-lasting oxytocin medication is likely to be wanted.

The findings have been revealed within the journal Frontiers in Cell and Developmental Biology.

Oxytocin can be used to stimulate or enhance contractions throughout labour, in addition to lessening bleeding after childbirth.


Leave a Comment