A new study defines previously unknown properties of transmitted HIV-1, the virus that causes AIDS.
Researchers have found an unexpected link between a protein that triggers the formation of blood clots and other proteins that are essential for the body’s immune system.
Researchers have shown how the innate immune system distinguishes between dangerous pathogens and friendly microbes.
Most cancer treatments are blunt. In an attempt to eradicate tumors, oncologists often turn to radiation or chemotherapy, which can damage healthy tissue along with the cancerous growths. New research may bring scientists closer to designing cancer therapeutics that can target tumors with pinpoint accuracy.
An intuitive approach, which co-opts the body’s own molecular machinery, has led to massive expansions of umbilical cord blood cells. It and other new approaches “will revolutionize all transplantation,” says University of Minnesota Blood and Marrow Transplantation Director John Wagner.
Bacteria appear to speed up their evolution by positioning specific genes along the route of expected traffic jams in DNA encoding. Certain genes are in prime collision paths for the moving molecular machineries that read the DNA code, scientists explain.
Scientists said they have evidence from animal studies that a type of central nervous system cell other than motor neurons plays a fundamental role in the development of amyotrophic lateral sclerosis (ALS), a fatal degenerative disease.
Health officials say they still don't understand how a lesser-known bird flu virus was able to kill two men and seriously sicken a woman in China, but that it's unlikely that it can spread easily among humans. Two men in Shanghai became the first known human fatalities from the H7N9 bird flu after contracting it in February.
Health officials say at least 24 people have become sick from an outbreak of E. coli infections linked to frozen snack foods marketed to children. No one has died, but eight people, mostly kids or teens, were hospitalized.
Scientists have developed a new technique that could be used in blood tests to detect a range of age-related conditions such as diabetes, dementia and Alzheimer’s.
Like tiny, crawling compass needles, whole living cells and cell fragments orient and move in response to electric fields— but in opposite directions, scientists have found.
A team of researchers has generated new insight on how a stem cell’s environment influences what type of cell a stem cell will become. They have shown that whether human mesenchymal stem cells turn into fat or bone cells depends partially on how well they can “grip” the material they are growing in.
A team of scientists has unveiled a new technique for vaccine design that could be particularly useful against HIV and other fast-changing viruses.
Researchers have been able to reprogram cells experimentally, but few have shown that cells can change their identities under normal physiological conditions in the body, particularly in mammals.
Important new research demonstrates how exosomes shuttle proteins from neurons to muscle cells where they take part in critical signaling mechanisms, an exciting discovery that means these tiny vehicles could one day be loaded with therapeutic agents, such as RNA interference (RNAi), and directly target disease-carrying cells.
An international team of scientists says a key protein in Schwann cells performs a critical, perhaps overarching, role in regulating the recovery of peripheral nerves after injury.
Researchers have found that missteps in a basic cellular process, RNA splicing, is the culprit behind a class of rare neurological disorders manifested by intellectual disability and stunted development.
Neuroscientists face a multitude of challenges in their efforts to better understand the human brain. If not for model organisms such as the rat, they might never know what really goes on inside our heads.
A new study provides novel insight into how an emerging strain of the diarrhea-causing bacteria E. coli interacts with its host.
A huge international effort involving more than 100 institutions and genetic tests on 200,000 people has uncovered dozens of signposts in DNA that can help reveal further a person's risk for breast, ovarian or prostate cancer, scientists reported Wednesday.
A team of researchers report that in the laboratory setting, engineered ovaries showed sustained release of the sex hormones estrogen and progesterone.
Engineers have developed a portable device to count white blood cells that needs less than a pinprick's worth of blood and takes just minutes to run.
Researchers have investigated the effect that all seven botulinum toxins have on neuron survival, and they have discovered that not all botulinum toxins are equally safe for neurons.
Individuals who had taken a type of drug commonly used to treat Type 2 diabetes showed abnormalities in the pancreas, including cell proliferation, that may be associated with an increased risk of neuroendocrine tumors, according to a new study.
Two new studies shed light on the molecular biology of three blood disorders, leading to novel strategies to treat these diseases.