This study provides the first direct evidence of cardiomyocyte mitosis in the adult human heart following myocardial infarction, challenging the long-standing paradigm that cardiac muscle cells are incapable of regeneration. Utilizing live human heart tissue models, researchers from the University of Sydney demonstrated that while fibrotic scarring occurs post-ischemia, the heart simultaneously initiates a natural regenerative program characterized by active cell division. The investigation further identified specific regulatory proteins that drive this mitotic process, offering a molecular blueprint for endogenous tissue repair. These findings suggest that the human heart possesses a latent regenerative capacity that could be therapeutically harnessed to prevent heart failure and reverse post-infarct tissue damage, representing a significant shift in regenerative cardiovascular medicine.
A world‑first University of Sydney study reveals that the human heart can regrow muscle cells after a heart attack, paving the way for breakthrough regenerative therapies to reverse heart failure.
Researchers have developed a novel noninvasive coronary artery bypass approach that may offer an alternative to traditional open-heart surgery for select patients with coronary disease. Early experience suggests this technique could reduce surgical trauma and change how some coronary conditions are treated, although broader clinical validation will be needed to define its role in future practice.
Researchers have created a new noninvasive technique for performing a type of artery bypass that may change the future of some coronary surgeries.
Deng et al. constructed a comprehensive bacterial and archaeal genome catalog from groundwater and uncovered extensive previously unknown microbial diversity. This study reveals genome size as an axis underlying allocation of microbial defense and redox regulation and identifies groundwater as a hotspot of selenium metabolism and functional innovation.
Scientists have long understood that plants take in air through tiny openings on their leaves known as stomata. These microscopic pores act like adjustable valves, letting carbon dioxide enter the leaf for photosynthesis while allowing water vapor to escape into the air. Until now, closely tracking this balancing act as it happens has been extremely difficult.
Researchers at the University of Illinois Urbana-Champaign have now created a powerful new system that makes this possible. Their study, published in the journal Plant Physiology, introduces a tool called “Stomata In-Sight.” It overcomes a major obstacle in plant science by allowing scientists to observe the minute movements of stomata while also measuring, at the same time, how much gas the leaf is exchanging with the atmosphere under carefully controlled conditions.
A team of New York University scientists has created a gear mechanism that relies on fluids to generate rotation. The invention holds potential for a new generation of mechanical devices that offer greater flexibility and durability than do existing gears—whose origins date back to ancient China.
The breakthrough is reported in the journal Physical Review Letters.
“We invented new types of gears that engage by spinning up fluid rather than interlocking teeth—and we discovered new capabilities for controlling the rotation speed and even direction,” says Jun Zhang, a professor of mathematics and physics at NYU and NYU Shanghai and the senior author of the paper.
AUSTIN (KXAN) — The group building what could become the world’s most powerful optical telescope, the Giant Magellan, has a new leader. The GMTO Corporation announced Tuesday that The University of Texas at Austin’s Daniel T. Jaffe will serve as its new president.
Jaffe joins fellow UT professor Taft Armandroff, who was elected in November to chair the GMTO board of directors.
“I’m very excited about the chance to lead this project. I’m very enthusiastic about its prospects. I think it’s going to be a major breakthrough for astronomical science in the coming decades,” Jaffe said.
In 2024, scientists stumbled upon a potential new treatment for hereditary-patterned baldness, the most common cause of hair loss in both men and women worldwide.
It began with research on a naturally occurring sugar that helps form DNA: the ‘deoxyribose’ part of deoxyribonucleic acid.
While studying how these sugars aid wound healing in mice when applied topically, scientists at the University of Sheffield and COMSATS University in Pakistan noticed that the fur around treated lesions grew back faster than in untreated mice.
