ANN ARBOR—A banana a day may not keep the doctor away, but a substance originally found in bananas and carefully edited by scientists could someday fight off a wide range of viruses, new research suggests. (more…)
Tag Archives: viruses
Imagine that an invisible, microscopic invader has found its way into your body and hijacked the cellular machinery that keeps you healthy. Inhabiting the gray area between living and nonliving, the invader can only reproduce once it makes its new home inside of your cells, eventually causing you to fall ill. How do physicians and scientists combat this uninvited guest? (more…)
Researchers at UD use ancient gene to study virus biology
Researchers at the University of Delaware have discovered that an ancient gene — ribonucleotide reductase (RNR), which occurs in all cellular life — provides important biological insights into the characteristics of unknown viruses in the sea. (more…)
Using bacteria as bait, UA scientists caught wild ocean viruses and found that the genetic lines between virus types in nature are less blurred than previously thought.
A fishing expedition of microscopic proportions led by University of Arizona ecologists revealed that the lines between virus types in nature are less blurred than previously thought. (more…)
UA researchers have discovered that two separate defects combine to contribute to reduced T cell responses with aging.
Researchers at the University of Arizona College of Medicine – Tucson have found a key to understanding the aging immune system’s decreased response to infectious diseases, which remain among the leading causes of death in older adults.
Aging profoundly affects the immune system’s T cells – the types of white blood cells that defend against intracellular pathogens, such as viruses, intracellular bacteria or parasites, such as malaria. Newly encountered pathogens are attacked by what are known as naïve T cells, some of which then learn and remember, becoming memory T cells that prevent reinfection when they encounter the same pathogen again. But naïve T cells become depleted with age, leading to less effective immune responses against new infections. (more…)
A team of researchers at the IRCM, led by Dr. Javier M. Di Noia in the Immunity and Viral Infections research division, discovered a novel research model for the study of auto-immune diseases. The Montréal scientists are the first to find a way to separate two important mechanisms that improve the quality of antibodies. This study was featured in a recent issue of The Journal of Immunology.
Dr. Di Noia’s team studies B cells, a group of white blood cells known as lymphocytes whose main function is to produce antibodies to fight against antigens. Antibodies are proteins used by the immune system to identify and neutralize foreign objects (antigens), such as bacteria and viruses, by precisely binding to them, thus making them an essential part of the immune system. Antibodies can come in different varieties (or classes), which perform different roles and adapt the immune response to eliminate each different toxin or pathogen they encounter. The body’s great diversity of antibodies therefore allows the immune system to specifically neutralize an equally wide variety of antigens. (more…)
Knowing the temperatures that viruses, bacteria, worms and all other parasites need to grow and survive could help determine the future range of infectious diseases under climate change, according to new research.
Princeton University researchers developed a model that can identify the prospects for nearly any disease-causing parasite as the Earth grows warmer, even if little is known about the organism. Their method calculates how the projected temperature change for an area would alter the creature’s metabolism and life cycle, the researchers report in the journal Ecology Letters. (more…)
Any disintegration of skin or rupture of the skin’s surface is literally known as skin infection. Normally, different types of microorganisms are responsible for various skin conditions or skin infections. Usual infection-causing pathogens are bacteria, viruses, fungi and parasites.
A pathogen from a particular category of microbes causes a particular type of skin disease. Ringworm, impetigo, folliculitis and cellulitis are most common skin conditions. Impetigo is sort of a very dangerous skin ailment that leads to very complicated stages further. Let’s find out what is Impetigo and symptoms to identify Impetigo. (more…)