Genetics News

Mice Study Suggests Lack of Serotonin Not Behind Depression

August 28th, 2014
New evidence challenges the conventional wisdom that the brain chemical serotonin is responsible for maintaining mood balance, and that a deficit of serotonin leads to depression. In a study, scientists report that mice lacking the ability to make serotonin in their brains did not ...

More Genes Implicated in Bipolar Disorder

August 26th, 2014
A newly discovered gene linked with an enzyme that helps to conduct neural signals is the latest piece found of the genetic puzzle of bipolar disorder. The condition, also known as manic-depressive illness, appears to be influenced by at least five areas of ...

Preschool Figure Drawings Correlate With IQ a Decade Later

August 20th, 2014
A four-year-old child’s drawings of a person can possibly reveal their intelligence levels then and also a decade later, according to a new study at Kings’ College London. But parents shouldn’t worry if their child draws poorly, as it isn’t the only ...

Tinkering With Genes to Prevent Migraines

August 20th, 2014
Two new drugs in promising clinical trials use genetic engineering to prevent migraine headaches, the third most common and seventh most disabling medical disorder in the world. Both use genetically engineered "monoclonal antibodies" attacking a new target in migraine prevention, a small protein known as ...

Low Levels of Oxytocin Linked to Poor Social Skills

August 18th, 2014
A new study has found that higher levels of the “cuddle” hormone oxytocin are linked to stronger social skills in both healthy children and in children with autism. The research is published in the journal Proceedings of the National Academy of Sciences. It ...

Low Vitamin D Can Hike Risk of Dementia in Elderly

August 8th, 2014
New research suggests Vitamin D deficiency in older individuals can significantly increase their risk of developing dementia and Alzheimer’s. A team of international researchers found that study participants who were severely Vitamin D deficient were more than twice as likely to develop dementia ...

Stroke, Vascular Ills ID’d as Risk Factors in Developing Dementia

August 7th, 2014
A Dutch study has found that those diagnosed with mild cognitive impairment (MCI) have a fourfold increased risk of developing dementia or Alzheimer's disease (AD), and that stroke and other vascular damage are important risk factors. The results of the study are published ...

New Research Shows Why Some People Are More Vulnerable to Stress

August 3rd, 2014
A new study may explain why some people are more vulnerable to stress and stress-related psychiatric disorders. Researchers at Duke University have discovered that the addition of a chemical mark atop a gene known for its involvement in clinical depression and post-traumatic stress ...

Blood Test for Suicide Risk?

August 3rd, 2014
A newly discovered chemical alteration in a stress gene may lead to the development of a simple blood test to predict a person’s risk of attempting suicide, according to researchers at Johns Hopkins University. “Suicide is a major preventable public health problem, but ...

Mechanism by Which Child Abuse Influences Adult Health Identified

July 28th, 2014
A new study demonstrates that childhood abuse affects the way genes are activated, thereby influencing a child's long-term development. Previous studies focused on how a particular child's individual characteristics and genetics interacted with that child's experiences in an effort to understand how ...