Fat Cells Send Mitochondrial Distress Signals to the Heart
Fat Cells Send Mitochondrial Distress Signals to the Heart
Vesicles containing fragments of the organelles released from stressed adipocytes protect the heart against oxygen deprivation, a study in mice shows.
Fat Cells Send Mitochondrial Distress Signals to the Heart
Fat Cells Send Mitochondrial Distress Signals to the Heart

Vesicles containing fragments of the organelles released from stressed adipocytes protect the heart against oxygen deprivation, a study in mice shows.

Vesicles containing fragments of the organelles released from stressed adipocytes protect the heart against oxygen deprivation, a study in mice shows.

heart attack
Infographic: Pathways from Noise to Cardiovascular Damage
Infographic: Pathways from Noise to Cardiovascular Damage
Thomas Münzel, Omar Hahad | Jun 1, 2021
Research in mice and humans points to oxidative stress and inflammation as likely drivers of noise-induced health effects such as hypertension and heart disease.
How Environmental Noise Harms the Cardiovascular System
How Environmental Noise Harms the Cardiovascular System
Thomas Münzel, Omar Hahad | Jun 1, 2021
Sound from cars, aircraft, trains, and other man-made machines is more than just annoying. It increases the risk of cardiovascular disease.
Heart Attack Elevates Risk of Breast Cancer Recurrence: Study
Heart Attack Elevates Risk of Breast Cancer Recurrence: Study
Amanda Heidt | Jul 13, 2020
Mice that experienced heart attacks underwent a large-scale shift in their immune systems that allowed cancer to flourish, perhaps explaining the observation in patients.
Image of the Day: Repairing Hearts
Image of the Day: Repairing Hearts
Emily Makowski | Jan 7, 2020
A growth factor treatment helps improve cardiac functioning after heart attack in pigs.
Gene Editing Makes Cells Evade Immune Attack In Vitro
Gene Editing Makes Cells Evade Immune Attack In Vitro
Emma Yasinski | Dec 12, 2019
To advance the possibility of off-the-shelf cardiac cell therapies, scientists devise an engineered cardiac stem cell that avoids stimulating a detrimental immune attack.
Activation of the Immune System Underlies Cardiac Cell Therapies
Activation of the Immune System Underlies Cardiac Cell Therapies
Ruth Williams | Nov 27, 2019
A study in mice reveals that stem cell transplants, currently in clinical trials, may not actually require the cells.
Novartis’s $9.7 Billion Purchase Includes Novel PCSK9 Inhibitor
Novartis’s $9.7 Billion Purchase Includes Novel PCSK9 Inhibitor
Emily Makowski | Nov 25, 2019
The pharmaceutical firm is buying The Medicines Company, which recently devoted its efforts into developing the cholesterol-lowering medication.
Gene Mutation Could Explain Humans’ High Risk of Heart Attack
Gene Mutation Could Explain Humans’ High Risk of Heart Attack
Shawna Williams | Jul 23, 2019
Mutating a gene called CMAH in mice so it’s nonfunctional, as in humans, upped the animals’ chances of developing heart disease, a study finds.
Image of the Day: Scarred Hearts
Image of the Day: Scarred Hearts
Ashley Yeager | Dec 4, 2018
Maps of diving cells before and after heart attacks in mice offer additional evidence against the existence of cardiac stem cells.
Mitochondrial Infusions Given to Babies with Heart Damage
Mitochondrial Infusions Given to Babies with Heart Damage
Kerry Grens | Jul 10, 2018
Among 11 infants treated to date, most survived and their heart function improved.
Cardiac Cell Transplants Help Monkeys’ Hearts
Cardiac Cell Transplants Help Monkeys’ Hearts
Ashley Yeager | Jul 2, 2018
The organ’s blood-pumping capacity improved with the infusion of cells, a study shows.
Image of the Day: Cold Hearted 
Image of the Day: Cold Hearted 
The Scientist Staff, The Scientist Staff | Jan 22, 2018
Cardiologists have found a way to cool the human heart in a localized way to help reduce muscle damage from heart attacks. 
Why Afternoon Open Heart Surgery Is Better for Patient Outcomes
Why Afternoon Open Heart Surgery Is Better for Patient Outcomes
Catherine Offord | Oct 27, 2017
Research in human patients and mice reveals the role of the circadian clock in the risk of heart damage at different times of day.
Image of the Day: Un-break My Heart
Image of the Day: Un-break My Heart
The Scientist Staff | Aug 8, 2017
A failing heart is easily distinguished from a healthy one by numerous tell-tale signs, including its slender, stretched-out walls, increased size, and pooled blood clots.
Bright Lights and Bacteria Treat Rats’ Heart Attacks
Bright Lights and Bacteria Treat Rats’ Heart Attacks
Ruth Williams | Jun 14, 2017
Injecting photosynthetic microbes into oxygen-starved heart tissue can improve cardiac function in rodents. 
PCSK9 Drug Reduces Heart Disease Risk
PCSK9 Drug Reduces Heart Disease Risk
Diana Kwon | Mar 21, 2017
A cholesterol-lowering drug significantly cut the risk of heart attack and stroke in a recent study. But is it worth the steep cost?
Donor Stem Cells Improve Cardiac Function
Donor Stem Cells Improve Cardiac Function
Kerry Grens | Oct 12, 2016
After a heart attack, monkeys given induced pluripotent stem cell–derived cardiomyocytes show more regeneration in the organ, but with risks.
If It Ain't Broke . . .
If It Ain't Broke . . .
Kerry Grens | Jan 1, 2016
Is there room to improve upon the tried-and-true, decades-old technology of artificial hearts?