Thursday, September 23

bacterias

bacterias, celulares, dispositivos, enfermedades, microorganismos, Noticias, Reino Unido, rusia, smartphones, Telefonía celular, teléfonos

They warn about the bacteria that live in smartphones | Digital Trends Spanish

In today's world, people have become very dependent on cell phones and spend several hours a day glued to these devices. The problem is that these devices could affect our health. An investigation carried out in the United Kingdom by Russian scientists warns about the large number of bacteria found in smartphones, which may even be capable of making us sick. Russian doctor Natalia Ochinskaya explains that swabs taken from phones during the investigation have shown that the devices are a true "breeding ground for pathogenic bacteria." “The study looked at 30 ordinary people's phones. It turned out that, in some cases, the body of a smartphone can contain 18 times more bacteria than the rim of the toilet bowl and the handle of the cistern in the men's room, "the infectious disease expert...
antibacteriales, Antibióticos, bacterias, Noticias, Salud, Tendencias

Bacteria “scream” when they die to warn of dangers | Digital Trends Spanish

The bacterial swarms issue an alert that warns their neighbors about a deadly threat, such as antibiotics, saving most of the bacterial colony. This was revealed by a study that detected a mechanism called necrosignalization, a kind of "chemical scream" that gives surviving bacteria enough time to flee and acquire mutations to gain resistance against dangers. Many bacteria move about with the help of thin, tail-like structures called flagella, sometimes congregating in billions to move together, like a swarm. As swarms of bacteria are metabolically active and grow almost as a single organism, the researchers suspected that they may have their mechanisms to develop resistance to antibiotics. Researchers had previously found that when a swarm was encountered with antibiot...
bacterias, huella digital viral, intestino, Noticias, Salud, Tendencias, universidad de ohio, virus

A viral fingerprint: what the human intestine hides | Digital Trends Spanish

The viral composition of each person's gut is as unique as a fingerprint, according to the first study to assemble a comprehensive database of viral populations in the human digestive system. An analysis of viruses in the guts of healthy people also showed that the highs and lows in the diversity of virus types between infancy and old age reflect bacterial changes throughout life. The Gut Virome database, developed by scientists from the Ohio State University, identifies 33,242 unique viral populations that are present in the human intestine. However, this is not cause for alarm: most viruses do not cause disease. In fact, the more scientists learn about viruses, the more they see them as part of the human ecosystem, suggesting that they have the potential to represent a new class...
bacterias, células, ciencia, Noticias, Tendencias

They confirm how bacteria become more aggressive | Digital Trends Spanish

Bacteria that invade animal cells to multiply are widespread in nature. Some of these are human and animal pathogens, whereas in the environment they are often found in single-celled organisms. But how have they managed to survive and adapt over time? A research team, led by Matthias Horn at the Center for Microbiology and Environmental Systems Science of the University of Vienna, analyzed in the laboratory, these bacteria adapt to their host cell over time and even, under certain conditions, become increasingly infectious. According to the study published in the journal Proceedings of the National Academy of Sciences (PNAS), this is due to changes in the genome and in gene expression, particularly in the genes that control the interaction of bacteria with their hosts...