Bone marrow produces new blood cells and helps the lymphatic system work properly. But it may also turn out to be a progressively hostile microenvironment that induces vascular dysfunction and ossification, or hardening, of blood vessels.
In biomedical research, access to human tissues is of central importance in studying a disease or condition, and ultimately in developing drugs and looking for cures. For this reason, scientists are rolling out an innovative project to develop an extensive Research Registry and Specimen Bank, a unique biobank.
Researchers have launched an early-stage clinical trial of an investigational vaccine designed to prevent genital herpes disease.
The pain caused by a surgical incision may contribute to the risk of postoperative cognitive dysfunction, a sometimes transient impairment in learning and memory that affects a small but significant number of patients in the days following a surgical procedure.
With almost no experience, newly graduated medical students enter teaching hospitals around the country every July, beginning their careers as interns, while last year’s interns and junior residents take a step up and assume new responsibilities. Some experienced physicians share a joke about this changing of the guard: Don’t get sick in July.
People who speak more than one language and who develop dementia tend to do so up to five years later than those who are monolingual, according to a study.
A growing body of evidence suggests that the brain plays a key role in glucose regulation and the development of type 2 diabetes, according to a new study.
Eye contact during early infancy may be a key to early identification of autism, according to a new study, which revealed the earliest sign of developing autism ever observed- a steady decline in attention to others’ eyes within the first two to six months of life.
Researchers have solved a big piece of the puzzle of how and why multicellular organisms evolved the trait of using single cells to reproduce by applying experimental evolution to transform a single-celled algae into a multicellular one that reproduces by dispersing single cells.
According to a recent National Science Foundation study, state government agency expenditures for R&D totaled $1.4 billion in fiscal year 2011, an 11 percent increase over the $1.3 billion reported in FY 2010.
New research has found that people experiencing depressive episodes display increased brain activity when they think about themselves.
New research shows that chronic stress changes gene activity in immune cells before they reach the bloodstream. With these changes, the cells are primed to fight an infection or trauma that doesn’t actually exist, leading to an overabundance of the inflammation that is linked to many health problems.
Testosterone treatments may increase risks for heart attacks, strokes and death in older men with low hormone levels and other health problems, a big Veterans Affairs study suggests.
Two knee surgeons have discovered a previously undescribed ligament in the human knee. The ligament appears to play an important role in patients with anterior cruciate ligament (ACL) tears.
The generic anticonvulsant medication gabapentin shows promise as an effective treatment for alcohol dependence, based on the results of a 150-patient clinical trial of the medication. The study found that alcohol dependent patients using gabapentin were more likely to stop drinking or refrain from heavy drinking than those taking placebo.
Using brain-wide and consistent tracer data, the researchers proposed a novel understanding of brain architecture using a network representation of connections within the primate cortex.
A team of Virginia Tech researchers is investigating the challenges presented by four often deadly pathogens that have been documented in household or hospital tap water. They propose fighting these opportunistic pathogens with harmless microbes—a probiotic approach for cleaning up plumbing.
New research shows obesity is the largest predictor of earlier onset puberty in girls, a phenomenon that is affecting white girls much sooner than previously reported. The multi-institutional study strengthens a growing body of research documenting the earlier onset of puberty in girls of all races.
Nitric oxide (NO) is one of the most important signaling molecules in living cells, carrying messages within the brain and coordinating immune system functions. In many cancerous cells, levels are perturbed, but very little is known about how NO behaves in both healthy and cancerous cells.
An experimental vaccine to protect against respiratory syncytial virus (RSV), a leading cause of illness and hospitalization among very young children, elicited high levels of RSV-specific antibodies when tested in animals, according to a new report.
Cisplatin is a chemotherapy drug given to more than half of all cancer patients. The drug kills cells very effectively, but tumors can become resistant to the drug and grow back. A new study offers a possible way to overcome that resistance.
Scientists have demonstrated that that cancer cells need a protein called Bod1 to grow and divide. When this protein is removed, cancer cells lose control of cell division and die.
In 2011, 1,925 malaria cases were reported in the United States, according to data published in a supplement of the Morbidity and Mortality Weekly Report (MMWR) released by the CDC. This number is the highest since 1971 and represents a 14 percent increase since 2010.
Researchers have developed a computerized system that can track patients’ brain activity during a coma and automatically adjust drug dosages to maintain the correct state.
Five decades of isolation, military rule and woeful health care have left Myanmar with a particularly high rate of blindness. Now, the veil of darkness is starting to lift, thanks in part to a surgical procedure that allows cataracts to be removed safely, without stitches, through two small incisions.