The study, which focuses on the process by which these cells renew and increase in number, could help research to find new treatments. Researchers have found that a protein, which switches on genes to allow embryonic stem cells to self-renew, works better when the natural occurring level of the...
A mechanism that permits essential substances to enter our cells while at the same time removing from them harmful components also has a "down side." This negative aspect prevents vital drugs, such as anti-cancer drugs, from achieving their designed functions, while also enabling bacterial cells...
A new use for compounds related in composition to the active ingredient in marijuana may be on the horizon: a new research report published in the Journal of Leukocyte Biology shows that compounds that stimulate the cannabinoid type 2 (CB2) receptor in white blood cells, specifically...
Mammalian females ovulate periodically over their reproductive lifetimes, placing significant demands on their ovaries for egg production. Whether mammals generate new eggs in adulthood using stem cells has been a source of scientific controversy. If true, these "germ-line stem cells" might...
Clues about how cells become cancerous are revealed in a new catalogue of their physical and chemical features. The catalogue shows, among other things, how malignant cells that break out of tumors and invade other organs are nimbler and more aggressive than non-malignant ones: they are able...
Pioneering biophotonics technology developed in the US can detect nanoscale changes in cells from the cervix and uterus that may indicate early stage ovarian cancer, according to a study published this month in the International Journal of Cancer. The researchers describe how using partial...
Deep inside your brain, a legion of stem cells lies ready to turn into new brain and nerve cells whenever and wherever you need them most. While they wait, they keep themselves in a state of perpetual readiness - poised to become any type of nerve cell you might need as your cells age or get...
Research led by a biology professor in the School of Science at IUPUI has uncovered a method to produce retinal cells from regenerative human stem cells without the use of animal products, proteins or other foreign substances, which historically have limited the application of stem cells to...
New research from Boston University School of Medicine (BUSM) reveals that B cells regulate obesity-associated inflammation and type 2 diabetes through two specific mechanisms. The study, published in the Proceedings of the National Academy of Sciences, indicates the importance of continuing to...
Researchers at Albert Einstein College of Medicine of Yeshiva University have discovered how the most common genetic mutations in familial Parkinson's disease damage brain cells. The study, which published online in the journal Nature Neuroscience, could also open up treatment possibilities for...
Cancer vaccines that attempt to stimulate an immune system assault fail because the killer T cells aimed at tumors instead find the vaccination site a more inviting target, scientists at The University of Texas MD Anderson Cancer Center report in Nature Medicine. A common substance used in many...
New research from the University of Michigan Comprehensive Cancer Center finds that the protein HER2 plays a role even in breast cancers that would traditionally be categorized as HER2-negative - and that the drug Herceptin, which targets HER2, may have an even greater role for treating breast...
Researchers in the US have identified a natural antiviral protein that stops HIV and certain other deadly viruses like Ebola, Rift Valley Fever, and Nipah, from entering host cells. They hope the discovery will help efforts to develop broad-spectrum antivirals against many of the deadly viruses...
New bone tissue grown from patients' own stem cells that attach themselves to an implanted, rigid lightweight plastic "scaffolding" which gradually degrades and is replaced as new bone grows, could soon be healing shattered limbs, according to a new research report. The degradable polymer...
New research has shown the presence of a disease affecting small blood vessels, known as microangiopathy, in the bone marrow of diabetic patients. While it is well known that microangiopathy is the cause of renal damage, blindness and heart attacks in patients with diabetes, this is the first...
Cancer cells need food to survive and grow. They're very good at getting it, too, even when nutrients are scarce. Many scientists have tried killing cancer cells by taking away their favorite food, a sugar called glucose. Unfortunately, this treatment approach not only fails to work, it...
The rate of chemical processes in cells is dictated by the speed of movement (diffusion) of molecules needed for a given reaction. Using a versatile method developed at the Institute of Physical Chemistry of the Polish Academy of Sciences in Warsaw, researchers were able to predict for the first...
In this week's issue of the prestigious journal Nature Chemical Biology, scientists Carole Linster (University of Luxembourg), Emile Van Schaftingen (Louvain University), and Andrew D. Hanson (University of Florida, Gainesville) review an important, but so far neglected, part of metabolism...
While the wooly musk ox may like it cold, fruit flies definitely do not. They like it hot, or at least warm. In fact, their preferred optimum temperature is very similar to that of humans - 76 degrees F. Scientists have known that a type of brain cell circuit helps regulate a variety of innate...