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Scientists have created a self-managed robot surgeon for heart surgery

Specialists from the Boston Children's Hospital (USA) have developed and successfully conducted tests of a flexible autonomous robotic catheter that can independently touch the inside of the heart and reach the heart valves. Verification of the invention for autonomous detection of heart valves was carried out on the living hearts of pigs. About the advanced development of scientists reports article published in the journal Science Robotics. At present, surgeons perform operations in the cardiac cavity in two different ways: minimally invasive, when the sternum is not cut, and all actions are performed through a small puncture between the ribs, and by the transsternal method, when access to the heart is opened through the cut sternum. The latter case requires a longer recovery period and can sometimes be accompanied by complications. Minimally invasive operations, in turn, are performed using guided flexible catheters with minimal surgical intervention. The most difficult thing in Continue Reading

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Scientists have created a transparent implant for the study of the living brain in real time

Scientists from the University of Minnesota have created a unique See-Shells implant for the skull, which will help unravel the causes of Alzheimer's and Parkinson's diseases and, equally important, find these treatments, as well as other dangerous diseases. The implant is a solid transparent shell created using 3D printing technology. According to the creators of the implant, such a device helps to look into the head and see how diseases or injuries affect the entire organ as a whole. A detailed article on the development and research of scientists was published magazine Nature Communications. “The new device allows us to visualize brain activity and interact with a large amount of surface areas, in this case, the whole cerebral cortex,” explains one of the authors of the design, Suhasa Kodandaramayah. Previously, experts could only observe certain areas of the brain in order to study them in detail. The new tool, See-Shell, Continue Reading

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A ceramic implant of Australian scientists will help to splice the bones

The implant invented by scientists can be printed out on a 3D printer, and over time the artificial part can even grow into a real bone. Unusual experiments conducted by scientists at the University of Sydney. Printed ceramic bone fragments provide accelerated healing and grow together with real bones. Bone fractures usually heal long and painfully. And the treatment of cracks is generally allowed to drift, waiting for them to grow independently in hard tires. Orthopedic technologies are developing slowly and reluctantly, and in serious cases, doctors use the devices of the past – metal plates or screws. However, there are 3D technologies that are developing, expanding the scope of their application. Ceramics is a non-standard material for additive technologies, and tests with it for several years were conducted by Professor Hala Tsreykat and her colleagues. It turned out that the printed ceramic implants, firstly, help with fractures, and secondly, Continue Reading

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We will live longer, but suffer more, scientists say

According to researchers from Newcastle University (Newcastle University), the number of older people suffering from several chronic diseases will increase significantly by 2035. Diseases such as diabetes, senile dementia, cancer and depression will affect almost every elderly person in the future. Scientists from the Institute for Aging (Institute for Aging) argue that every third elderly person who will be diagnosed with chronic medical illness will suffer from dementia, depression or other forms of cognitive impairment. Scientists predict that over the next 20 years there will be a significant increase in patients simultaneously with several chronic diseases. The studies, which are part of the MODEM project, were funded by the Economic and Social Research Council and the NHS research unit, the National Institute for Health Research (National Institute for Health Research). Life expectancy is also projected to increase by 2035: an additional 3.6 years for men and 2.9 for women. However, Continue Reading

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Scientists have identified the "neurological patterns" of consciousness

A new study using functional magnetic resonance imaging (fMRI) shows that the picture of the brain of a person who is in a vegetative state or the state of minimal consciousness differs from the picture of the activity of the brain of a person who is conscious, the article says published in Science Advances magazine by an international team of neuroscientists. The results of their work show that, in contrast to patients in a semi-conscious state, the brain of a healthy person demonstrates high dynamics and significantly more complex connectivity. “The results of the study demonstrate significant progress in determining the“ fingerprints ”of consciousness in the brain,” said neilbiologist Anil Seth of the University of Sussex, who did not participate in this research project. “This work opens new doors in defining conscious and unconscious states under various conditions.” A person may be in a state of temporary loss of consciousness Continue Reading

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Scientists from Russia have created composite prostheses for tendons

Biophysicists have created a complete replacement for tendons from polymers and composite materials that do not cause inflammation and irritation, and have tested it on rats. The results of these experiments were presented in the Journal of Biomedical Materials Research. “It is extremely important that implantable materials not only work as connective tissue, but also contribute to its regeneration. This implant provides conditions for the effective formation of strong and morphologically adequate regenerated binder tissue at the site of the defect,” says Vladimir Akatov, a professor at the Institute of Theoretical and Experimental Biophysics RAS in Pushchino. Tearing of ligaments and tendons is one of the most severe and intractable injuries for athletes, which often ends with the completion of their careers. The problem is that molecular biologists and doctors have not yet discovered the hormones or drugs that cause the ligaments to recover, or have found an adequate synthetic Continue Reading

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Scientists have created molecules that neutralize the flu virus.

By according to World Health Organization annually in the world there are from 3 to 5 million cases of diseases of various types of influenza virus, while up to 650 000 cases are fatal. Unfortunately, even in the modern world, science has not yet invented a universal medicine for the most common "seasonal disease." This is explained by the fact that the virus mutates easily, which forces experts to create more and more new types of vaccines. In this case, the principle of vaccination is based mainly on the prevention of the disease. But she does not guarantee that you will eventually not catch any new form of the virus. An international team of scientists from the USA, the Netherlands and Belgium recently published an article in which described in detail the principle of the experimental drug JNJ4796, created on the basis of special selected molecules that mimic the behavior Continue Reading

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Scientists have taken a step towards creating a cure for prostate cancer.

Prostate cancer is considered one of the main causes of death for men, after heart disease, lung cancer and melanoma. According to the World Health Organization, by the age of 65-70, every fourth man faces this terrible disease. The likelihood of a successful cure depends on how quickly the problem is found, so scientists are developing both early diagnosis technologies and ways to stop the growth of cancer cells. It turned out that the healing elements are even in coffee, and they very effectively cope with the disease. For the first time, scientists have noticed the healing properties of coffee when studying statistics about men: it was found that coffee lovers are faced with prostate cancer 11% less. Highlighting the six main components of coffee, they began to combine them with each other and see how they affect tumors. First, experiments were carried out in test tubes, and then – Continue Reading