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Latest News - #biology

Scientists believe that some stars can be up to seven habitable planets

The results of the simulation, which was conducted by American scientists, showed that some stars can be up to seven potentially habitable planets. The paper was published in the journal Astronomical Journal.

The search for life in outer space, scientists tend to restrict the so-called habitable zone — the region around a star where orbiting it planets may be liquid water needed to sustain life in the form we know it.

Singapore scientists have created a cure for yellow fever

Singapore scientists have announced the successful completion of the first phase of clinical trials they have developed an experimental drug against yellow fever. The study is published in the New England journal of Medicine.

Yellow fever — a hemorrhagic disease widespread in South America and Africa South of the Sahara, which annually affects about 200 thousand people, from them about 30 thousand die. So far there are no approved treatments for this disease. Although there is a vaccine against yellow fever, it is impossible to give some people because of the risk of side effects.

The next stage of compiling a complete encyclopedia of DNA elements.

The international ENCODE consortium, consisting of 500 scientists and biologists from many countries of the world announced the completion of the third phase of the global project on compilation of an encyclopedia of functional DNA elements. In 14 articles published in Nature, Nature Methods and Nature Communications, the authors summarize 17 years of experience.

The human genome contains about 20 thousand genes encoding proteins, which account for only about 1.5 percent of the DNA of the human genome.

Scientists have figured out when the coronavirus separated from bats

Evolutionary analysis of the genome of the novel coronavirus SARS-CoV-2 showed that it was separated from the most closely related viruses of bats of about 40-70 years ago. The study is published in the journal Nature Microbiology.

Biologists from the United States, Belgium, great Britain and China under the leadership of Professor David Robertson (David Robertson) from the Center for virus research University of Glasgow analyzed the evolutionary history of SARS-CoV-2. They used genomic data saribekovich — the representatives of the subgenus of coronaviruses that cause severe acute respiratory syndrome, which include including SARS-CoV and SARS-CoV-2.

Scientists have discovered the molecule responsible for hair restoration

American scientists have identified microRNA that promotes regeneration of hair and may in the future become the basis for the development of drugs against baldness. The study is published in the journal Science Advances.

Modern methods of treatment of hair loss, ranging from invasive surgery and ending with chemical treatments are expensive and not always effective.

Scientists have figured out which brain cells are responsible for sex and aggression

American scientists have discovered in mouse brain neural connection between the rear division of the amygdala and the hypothalamus, which is responsible in males for sexual desire and aggression. The study is published in the journal Nature Neuroscience.

Neurophysiologists have long known that the posterior amygdala, or the amygdala has a huge impact on social behavior, but its connection with sexual desire, until recently, was not known.

Scientists have found that algae benefit from the better coronavirus drugs

American and Korean scientists have found that heparin, part of the seaweed blocks the new coronavirus is better than ramdevpir is the main drug from COVID-19 used in the United States. The study is published in the journal Cell Discovery.

In order to penetrate into the human cell, the virus SARS-CoV-2 needs to engage his spiculum protein for ACE2 receptor on its surface. But you can send to the virus molecule-the bait similar form, and he will contact her, and then caught in a trap, without possibility of replication, eventually the natural way be destroyed.

Scientists have proposed an unusual method of extraction of rare earth metals

Russian scientists from the Siberian Federal University have developed a new type of sorbent for collecting rare metals from ash and volcanic deposits. It is made on the basis of vikramasila from rice husks. The study is published in the journals Analytical Methods and Separation Science and Technology.

Rare earth elements (REE) or rare earth widely used in the manufacture of modern electronics, lasers, SuperMagnets, electric vehicles, superconductors, metallurgy and medicine. In nature the rare earths are found in scattered form in the form of oxides, and this severely complicates their extraction on an industrial scale.

Scientists have found that Neanderthals were more strongly feel the pain

Geneticists have found that one of the genes that modern humans inherited from Neanderthals, which encodes an ion channel that is responsible for the sensation of pain. Hence, scientists have concluded that Neanderthals had a lower pain threshold than other types of people. The study is published in the journal Current Biology.

Neanderthals and modern man mixed-and swapped genes multiple times over thousands of years.

You have created a test that detects blood cancer four years before its manifestation

Scientists from the U.S. and China have developed a method, allowing the blood test to detect five forms of cancer four years before you see the first signs that capture modern methods of diagnosis. Described in the journal Nature Communications.

The test, called PanSeer that effectively identifies at the earliest stages of stomach cancer, esophagus, lung and liver and colorectal cancer.

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