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Microbiology News
Fri, 13 Jul 2018 09:35:36 EDT
Target for novel malaria vaccine identified
Researchers have created a vaccine that protects against malaria infection in mouse models, paving the way for the development of a human vaccine that works by targeting the specific protein that parasites use to evade the immune system.
Thu, 12 Jul 2018 17:21:58 EDT
Whole genome sequencing reveals cluster of resistant bacteria in returning travelers
Thirteen patients with OXA-48-producing Klebsiella pneumoniae ST392 have been reported by Sweden and Norway between January and April 2018 -- all returning travelers with prior hospital admission in Gran Canaria. Whole genome sequencing showed tight clustering between the bacterial isolates from the cases.
Thu, 12 Jul 2018 14:17:07 EDT
Gammaherpesviruses linked to tumors in macaques with simian immunodeficiency virus
Viruses known as gammaherpesviruses may raise the risk of cancer in macaques infected with Simian Immunodeficiency Virus or Simian Human Immunodeficiency Virus (SIV/SHIV), according to new research.
Thu, 12 Jul 2018 14:16:53 EDT
Parental chromosomes kept apart during embryo's first division
It was long thought that during an embryo's first cell division, one spindle is responsible for segregating the embryo's chromosomes into two cells. Scientists now show that there are actually two spindles, one for each set of parental chromosomes, meaning that the genetic information from each parent is kept apart throughout the first division.
Thu, 12 Jul 2018 14:16:28 EDT
Scientists ID protein exploited by virus ravaging West Africa
New research has uncovered a protein enabling the replication of arenaviruses, pathogens now widespread in West Africa that are carried by rodents and can infect humans with lethal fevers. The research identified DDX3 as a key factor promoting arenavirus multiplication through its unexpected ability to promote viral RNA synthesis and dismantle normal human immune system defenses. The study may pave the way to new therapeutic treatments for arenaviruses and hemorrhagic fever.
Thu, 12 Jul 2018 11:45:57 EDT
Finding the proteins that unpack DNA
A new method allows researchers to systematically identify specialized proteins called 'nuclesome displacing factors' that unpack DNA inside the nucleus of a cell, making the usually dense DNA more accessible for gene expression and other functions.
Thu, 12 Jul 2018 10:05:15 EDT
Herpes linked to Alzheimer's: Antivirals may help
A new commentary on a study by epidemiologists supports the viability of a potential way to reduce the risk of Alzheimer's disease. When the authors looked at subjects who suffered severe herpes infection and who were treated aggressively with antiviral drugs, the relative risk of dementia was reduced by a factor of 10.
Thu, 12 Jul 2018 10:04:50 EDT
Light receptors determine the behavior of flashlight fish
Biologists have characterized new, unknown photoreceptors from the bioluminescent flashlight fish Anomalops katoptron. The photoreceptors known as opsins allow the fish to detect light with a specific wavelength. Scientists found new opsin variants, which are specialized to detect low intensity blue light in the wavelength range of bioluminescent light emitted by the fish. The blue light can be used to influence the fish behavior.
Wed, 11 Jul 2018 14:44:18 EDT
3-D structure of 1918 influenza virus-like particles created
Virus-like particles (VLPs) are protein-based structures that mimic viruses and bind to antibodies. Because VLPs aren't infectious, they show promise as vaccine platforms for many viral diseases, including influenza. Since details about influenza VLPs are scant, a team of researchers developed a 3-D model based on the 1918 H1 pandemic influenza virus.
Wed, 11 Jul 2018 13:11:48 EDT
Healthier hearts equal healthier guts
Heart health and gut health may be linked. A new study finds that people with better cardiovascular fitness have more of a certain type of bacteria in their gut.
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