Human and chimp brains look anatomically similar because both evolved from the same ancestor millions of years ago. But where does the chimp brain end and the human brain begin? (more…)
Bats can be found all around the world. There are nearly 40 species in United States alone. There are many horror stories about different bats. Most people believe and fantasize about bats as the blood sucking monsters described in fiction and films. (more…)
Discovery may hold key to restoring speech after paralysis
Diagnosed with Lou Gehrig’s disease at 21, British physicist Stephen Hawking, now 70, relies on a computerized device to speak. Engineers are investigating the use of brainwaves to create a new form of communication for Hawking and other people suffering from paralysis.
—Daily Mail (U.K.)
Scientists at UCLA and the Technion, Israel’s Institute of Technology, have unraveled how our brain cells encode the pronunciation of individual vowels in speech.
Published in the Aug. 21 edition of the journal Nature Communications, the discovery could lead to new technology that verbalizes the unspoken words of people paralyzed by injury or disease. (more…)
COLUMBIA, Mo. – Despite differences in rituals and beliefs among the world’s major religions, spirituality often enhances health regardless of a person’s faith, according to University of Missouri researchers. The MU researchers believe that health care providers could take advantage of this correlation between health – particularly mental health – and spirituality by tailoring treatments and rehabilitation programs to accommodate an individual’s spiritual inclinations.
“In many ways, the results of our study support the idea that spirituality functions as a personality trait,” said Dan Cohen, assistant teaching professor of religious studies at MU and one of the co-authors of the study. “With increased spirituality people reduce their sense of self and feel a greater sense of oneness and connectedness with the rest of the universe. What was interesting was that frequency of participation in religious activities or the perceived degree of congregational support was not found to be significant in the relationships between personality, spirituality, religion and health.” (more…)
AUSTIN, Texas — An inexpensive antifungal drug, thiabendazole, slows tumor growth and shows promise as a chemotherapy for cancer. Scientists in the College of Natural Sciences at The University of Texas at Austin made this discovery by exploiting the evolutionary relatedness of yeast, frogs, mice and humans. (more…)
Major depression or chronic stress can cause the loss of brain volume, a condition that contributes to both emotional and cognitive impairment. Now a team of researchers led by Yale scientists has discovered one reason why this occurs — a single genetic switch that triggers loss of brain connections in humans and depression in animal models.
The findings, reported in the Aug. 12 issue of the journal Nature Medicine, show that the genetic switch known as a transcription factor represses the expression of several genes that are necessary for the formation of synaptic connections between brain cells, which in turn could contribute to loss of brain mass in the prefrontal cortex. (more…)
UCLA has performed its first transcatheter aortic valve replacement (TAVR), using a new device approved by the U.S. Food and Drug Administration to replace an aortic valve in a patient who was not a candidate for open-heart surgery. The procedure took place on Aug. 9.
Ronald Reagan UCLA Medical Center is part of a growing trend of hospitals nationwide offering this new minimally invasive procedure. (more…)
EAST LANSING, Mich. — A parasite thought to be harmless and found in many people may actually be causing subtle changes in the brain, leading to suicide attempts.
New research appearing in the August issue of The Journal of Clinical Psychiatry adds to the growing work linking an infection caused by the Toxoplasma gondii parasite to suicide attempts. Michigan State University’s Lena Brundin was one of the lead researchers on the team.
About 10-20 percent of people in the United States have Toxoplasma gondii, or T. gondii, in their bodies, but in most it was thought to lie dormant, said Brundin, an associate professor of experimental psychiatry in MSU’s College of Human Medicine. In fact, it appears the parasite can cause inflammation over time, which produces harmful metabolites that can damage brain cells. (more…)
