For animal species that cannot be distinguished using their external characteristics, genetic techniques such as DNA barcoding can help to identify cryptic species. Now, an international team of researchers has demonstrated how a bacterial infection can mimic cryptic speciation in butterflies.
There was an audible gasp at the New York Stem Cell Foundation (NYSCF) conference recently when neurosurgeon Ivar Mendez showed a video of a Parkinson’s patient before and after a transplant of a fetal stem-cell like graft. The patient was affectless, and could barely move before the graft. Eight years later, he was animated and moving briskly.
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.
The U.S. Food and Drug Administration (FDA) announced its preliminary determination that partially hydrogenated oils (PHOs), the primary dietary source of artificial trans fat in processed foods, are not “generally recognized as safe” for use in food.
This fall, Harvard University regenerative biologist Amy Wagers hooked up the circulatory systems of mice with multiple sclerosis (MS) to those of young healthy mice. She and a global team found that factors in the young blood prompted anti-inflammatory immune cell formation. This, in turn, actually regenerated the dying myelin sheaths wrapped around neuronal axons that are the very signature of MS.
Onions now come in a tearless version that scientists are now reporting could pack extra health benefits like their close relative, garlic, which is renowned for protecting against heart disease.
New research has found that people experiencing depressive episodes display increased brain activity when they think about themselves.
Researchers have linked a species of intestinal bacteria known as Prevotella copri to the onset of rheumatoid arthritis, the first demonstration in humans that the chronic inflammatory joint disease may be mediated in part by specific intestinal bacteria.
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.
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 stem cell therapy previously shown to reduce inflammation in the critical time window after traumatic brain injury also promotes lasting cognitive improvement, according to preclinical research led by Charles Cox, MD, at The University of Texas Health Science Center at Houston (UTHealth) Medical School.
Nguyen Thi Yen rolls up the sleeves of her lab coat and slips her arms into a box covered by a sheath of mesh netting. Immediately, the feeding frenzy begins. Hundreds of mosquitoes light on her thin forearms and swarm her manicured fingers. All her mosquitoes have been intentionally infected with bacteria called Wolbachia, which essentially blocks them from getting dengue. And if they can't get it, they can't spread it to people.
Women vaccinated with one dose of a human papillomavirus (HPV) vaccine had antibodies against the viruses that remained stable in their blood for four years, suggesting that a single dose of vaccine may be sufficient to generate long-term immune responses and protection against new HPV infections, and ultimately cervical cancer.
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.
Tumors become highly malignant when they acquire the ability to colonize other tissues and form metastases. Ludwig-Maximilians-Universität München researchers have identified a factor that promotes metastasis of colon tumors – and presents a possible target for therapy.
A deep hacking cough, a runny nose and fever—just like humans, horses can suffer badly when struck down by the flu. Although equine influenza is rarely fatal, it is highly contagious and can seriously disrupt training and competition schedules and result in huge revenue losses for the equine industry.
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 found that a gene already implicated in human speech disorders and epilepsy is also needed for vocalizations and synapse formation in mice.