Old heart rejuvenated with stem cells. Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

Old heart rejuvenated with stem cells

06.08.2012

Scientists at the University of San Diego's Heart Institute have succeeded in rejuvenating old heart cells using modified stem cells. During the experiment, for the first time in the history of medical science, it was possible to renew old heart cells damaged by heart failure. This opens up completely new possibilities in the fight against cardiovascular diseases, which lead the list of the most common causes of death in people.

Scientists have created modified stem cells with increased activity of the enzyme telomerase, which lengthens the length of telomeres. Telomeres are a kind of "protective caps" at the ends of chromosomes and contribute to cellular replication. The process of cell aging is inevitably accompanied by a reduction in the length of telomeres.

The researchers modified human stem cells with the PIM-1 kinase enzyme and placed them on heart cells taken from elderly people. As a result, it was found that the process of cell aging literally reversed: active repair of the myocardial muscle was observed. In mice, PIM-1 kinase-modified stem cells lengthened heart cell telomeres and caused the growth of new heart tissue in just four weeks.

A new technology to restore the heart has the potential to replace heart transplants in many cases and restore health to people who have had severe heart attacks. Currently, scientists are working on improving the method of telomere lengthening and testing its safety.

<< Back: Eyes control emotions 06.08.2012

>> Forward: AUO to release 4,3-inch AMOLED panels 05.08.2012

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

Pistol watch 13.09.2010

A pistol stolen from a policeman will not be able to serve as a weapon for a criminal if the system proposed by German gunsmiths comes into wide use. Their new pistol is only capable of firing if the shooter is wearing a special watch connected to the pistol via a radio channel.

When the pistol is removed from the watch by more than 45 centimeters, the weapon becomes useless. The watch has a fingerprint sensor and can be programmed for multiple owners. In addition, they introduce the duty schedule of these owners, and the pistol, even when paired with a watch, will not fire while in the hands of an employee who is not currently on duty.

True, such a set costs about 10 thousand dollars.

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews