Friday , June 18 2021

The ISS Microbial Astronaut is a must-see threat to health



ISSThree Expedition 57 crew dowels are inside the "International Window" section of the International Space Station, shirts wearing shirts, to show their homes in space.Credit: NASA file picture

Bacterial tensions EnterobacterThe International Space Station (ISS) has been identified, similar to those found recently found in infectious organisms in hospital hospitals. The tensions found in space were not pathogenic for humans, but researchers believe that possible implications for health potential in future missions, according to a study published in open access BMC Microbiology.

In the Jet Propulsion Laboratory, researchers at the California Institute of Technology have studied five voltages Enterobacter The common space and the ISS March 2015 exercise platforms were isolated, to make a greater effort to characterize bacterial communities that live on the surface of the space station. To identify species Enterobacter Determining the collection of ISS and the genetic components of individual voltages, the researchers were useful for public genomes of the ISS tensions. Enterobacter Earth tensions.

Dr. Kasthuri Venkateswaran, Jet Propulsion Laboratory Biotechnology and Planetary Protection Group's leading research scientists and research authors said: "We have used several methods to characterize the genomes in order to prove that bacterial species were in the ISS." Five ISS genomes revealed Enterobacter The voltages were genetically similar to three voltages found on Earth. These three strains had a specific bacterium that was named Enterobacter bugandensis for patients with illness and a risky patient in three hospitals (in eastern Africa, Washington, and Colorado).

If the five ISS voltage genomes were compared to the three-legged clinic genome, the authors could better understand that the ISS voltages showed antimicrobial resistance characteristics and thus had similar profiles found in bacteria-resistant bacteria. and identification of genes related to disease (potential pathogen).

Dr. Nitin Singh, the author of the first magazine, said: "Considering the results of multiple resistance against these ISS E. bugandensis The genomes and the greater potential pathogens we have identified, these species can potentially reflect future health missions. However, it is important to understand that the tensions found in the ISS are not virulent, which means that they are not active threats to human health, but something to be controlled. "

Authors have found ISS isolation models similar to antimicrobial resistance to the three clinical severities that were found on the Earth, including the 112 fatty acids involved in virulence, disease and defense. While in ISS E. bugandensis Tensions were not pathogenic for humans, authors predicted by computer analysis, because the probability of a 79% could cause the disease. However, studies of livestock organisms should be carried out.

Dr. Venkateswaran said: "Whether or not it is an opportunistic pathogen E. bugandensis It causes the disease and is a threat, it depends on many factors, including the environment. Other in vivo studies require that the ISS conditions, such as microgravity, other spaces and space-based nuclear factors, may have pathogenesis and virulence. "


Source link