Discover the Science of Health
Most of the genetic risk for autism comes from versions of genes that are common in the population rather than from rare variants or spontaneous glitches, researchers funded by the National Institutes of Health have found. Heritability also outweighed other risk factors in this largest study of its kind to date.
Researchers from Saarland University and Siemens Healthcare report that a new blood test can accurately discriminate between healthy people and patients with Alzheimer’s disease. It’s hoped the non-invasive and relatively cheap test could one day help with diagnosis. The research is published in the open access journal Genome Biology [2].
According to an international study led by researchers from the Virginia Commonwealth University (VCU) School of Pharmacy, multiple genes contribute to risk for schizophrenia and appear to function in pathways related to transmission of signals in the brain and immunity [1]. The discovery provides scientists with a better understanding the molecular and biological mechanisms involved with schizophrenia that may improve disease management and identify new drug targets. The study is published in the April issue of JAMA Psychiatry.
At the convergence of biotechnology and nanotechnology, a new project to map the active human brain may eventually lead to an understanding of human perception and consciousness, as well as therapies for neurological disorders such as Alzheimer’s disease, schizophrenia and autism.
Hearing voices that are not there was once thought to be a core symptom of schizophrenia and signify severe mental illness. It has been increasingly acknowledged that people with no other symptoms of schizophrenia or psychosis do hear voices [1]. There are several theories about what causes these auditory hallucinations. For example, there is good evidence that hearing voices can be linked to trauma [2]. Attempting to understand the phenomenon is not only scientifically interesting but also relates to how society views people with these experiences and if and how they may be treated. A search for how these experiences are associated with brain function is ongoing. New research published in the journal Human Brain Mapping suggests that the predisposition to hearing voices may relate to abnormal functioning of the brain whilst at rest [3].
