There are more evidences that insulin performs a number of important functions in the brain. In the course of research, an insulin resistance, its decreased level in the cerebrospinal fluid and disturbed transmission of insulin signals in the brain were revealed in people suffering from Alzheimer's disease. Specialists from the University of Rush have suggested that apparently, an insulin spray will positively affect the cognitive functions in these people.
The scientists still do not know the cause of 10 to 15% of cases of infertility and 50% of cases of usual (multiple) miscarriage. Researchers from Baylor College of Medicine have revealed a new mutation that reduces women's reproductive success and fertility, Zee News says.
Modern technologies, including three-dimensional printing, do not allow creating a branched network of blood vessels right up to the capillaries. This is necessary for the oxygen and nutrients delivery providing a tissue growth. A team of researchers from the US is close to solving this problem, Eurek Alert reports.
According to RIA News, it is known that the University of Newcastle became the first institution in the country that received a license for artificial insemination procedures using DNA of three people. The license was issued by the Ministry of Health. The law that permits an artificial insemination using the material of three people came into force in December 2016.
Chinese scientists have developed a new test that shows the blood group in a few seconds. The accuracy of the test is almost 100%, The Daily Mail reports. This is a real breakthrough, because all modern tests require a lot of time and complex equipment. The new method allows to determine the blood group to any person practically.
According to The Hindu, scientists have developed a high-resolution retinal prosthesis, using nanowires and wireless electronic systems. The prosthesis helps nerve cells in the human retina to respond to light. This technology can help millions of people with neurodegenerative diseases affecting vision.
Obsessive-compulsive disorder (OCD) is characterized by the occurrence of involuntary obsessive thoughts (obsessions) and attempts to get rid of them by means of obsessive actions (compulsions). The scientists of the University of Würzburg have revealed a protein that plays an important role in the development of OCD, UPI.com reports.
According to Zee News, an international team of experts has found that CDH2 gene mutation causes arrhythmogenic right ventricular cardiomyopathy. This rare hereditary heart disease is the main cause of sudden death in seemingly healthy young people
The Medical University of Guangzhou has conducted an unusual experiment. The scientists corrected genetic mutations in the cells of viable human embryos using CRISPR genome correction method. Previously, no one research group carried out such experiment. The main difference of this experiment was the use of normal embryos. Previously, CRISPR was tested only on genetically defective embryos that cannot develop into a fetus. It turned out that the method works much better with normal embryos.
For the first time the biologists have managed to induce a powerful immune response to animal version of HIV (monkey immunodeficiency virus) in the body of macaques. Two recently discovered antibodies were helped the scientists in this experiment. These two antibodies affect most strains of HIV. The principle is the same as with immunotherapy for cancer - the body begins to control the disease by itself, RIA News reports.