Author Archives: Karely Vega, MD

The Developing and Aging Brain

Scientists from Singapore have demonstrated the critical role played by a special transporter protein in regulating the brain cells that ensure nerves are protected by coverings called myelin sheaths.  The findings, reported by researchers at Duke-NUS Medical School and the National University of Singapore in the Journal of Clinical Investigation, could help to reduce the […]

Deep Sleep May Mitigate Alzheimer’s Memory Loss

A deep slumber might help buffer against memory loss for older adults facing a heightened burden of Alzheimer’s disease, new research from the University of California, Berkeley, suggests. Deep sleep, also known as non-REM slow-wave sleep, can act as a “cognitive reserve factor” that may increase resilience against a protein in the brain called beta-amyloid […]

Chemotherapy Drug Reaches Brain in Humans

A major impediment to treating the deadly brain cancer glioblastoma has been that the most potent chemotherapy can’t permeate the blood-brain barrier to reach the aggressive brain tumor. But now Northwestern Medicine scientists report results of the first in-human clinical trial in which they used a novel, skull-implantable ultrasound device to open the blood-brain barrier […]

Dual Gene-Editing to Eliminate HIV Infection

Gene-editing therapy aimed at two targets — HIV-1, the virus that causes AIDS, and CCR5, the co-receptor that helps the virus get into cells — can effectively eliminate HIV infection, new research from the Lewis Katz School of Medicine at Temple University and the University of Nebraska Medical Center (UNMC) shows. The study, published online […]

A Novel Stem Cell Adhesive Using Mussels

Cartilage is a tissue that protects bones by providing shock absorption and facilitates smooth joint movement. Unfortunately, due to its limited intrinsic healing capacity, stem cell transplantation is a promising therapeutic approach to address cartilage inflammation and damage, as well as to promote cartilage regeneration.  However, a major limitation of this technique is the rapid […]

Stress Increases Alzheimer’s Risk in Female Mice

Women are about twice as likely as men to be diagnosed with Alzheimer’s disease. Some of that is age; in the U.S., women outlive men by five to six years, and advanced age is the strongest risk factor for Alzheimer’s. But there’s more to it than that, so Alzheimer’s researchers continue to look for other […]

Air Pollution May Increase Risk of Dementia

Three years ago, an international study commissioned by the journal Lancet listed 12 modifiable factors that increased the risk of dementia, including three new ones: excessive alcohol, head injury and air pollution. Writing in the May 2, 2023 issue of the Journal of Alzheimer’s Disease, a team of researchers, led by scientists at University of […]

Peptide 3D-Printing Inks Could Advance Regenerative Medicine

How do you build complex structures for housing cells using a material as soft as jelly? Rice University scientists have the answer, and it represents a potential leap forward for regenerative medicine and medical research in general. Researchers in the lab of Rice’s Jeffrey Hartgerink have figured out how to 3D-print the well-defined structures using […]

Smart Thrombosis Inhibitors Without Bleeding Side Effects

Anticoagulants, or blood thinners, break down and prevent blood clots, semi-solid clumps of blood cells, and other substances that can block blood flow. However, anticoagulants can do their job too well, preventing clotting altogether and resulting in excessive external or internal bleeding. A new study from researchers at the University of British Columbia (UBC) and […]

Immune System Mediates Volume and Function of Rat Brains

Researchers have established that biological sex plays a role in determining an individual’s risk of brain disorders.  For example, boys are more likely to be diagnosed with behavioral conditions like autism or attention deficit disorder, whereas women are more likely to suffer from anxiety disorders, depression, or migraines.  However, experts do not fully understand how […]