Category Health/Medical

Inhibition of Lateral Prefrontal Cortex Produces Emotionally Biased First Impressions: A Transcranial Magnetic Stimulation and Electroencephalography Study, Psychological Science (2017). DOI: 10.1177/0956797617699837

Life is full of emotional highs and lows, ranging from enjoying an activity with a loved one and savoring a delicious meal to feeling hurt by a negative interaction with a co-worker or that recent scuffle with a family member. But when we let emotions from one event carry on to the next, such spillover can color our impressions and behavior in those new situations – sometimes for the worse...

SAF-A Regulates Interphase Chromosome Structure through Oligomerization with Chromatin-Associated RNAs

Researchers have identified properties in DNA’s protective structure that could transform the way scientists think about the human genome. Molecules involved in DNA’s supportive scaffolding – once thought to be fixed – go through dynamic and responsive changes to shield against mutations, the research shows. Experts say this finding is crucial to understanding DNA damage and genome organisation and could impact current thinking on DNA-linked diseases, including cancers.
In human cells, DNA is wrapped around proteins to form chromatin. Chromatin shields DNA from damage and regulates what genetic information can be read, ie transcription.

Researchers—led by the University of Edinburgh—showe...

Broccoli sprouts. Credit: © dariaren / Fotolia

Concentrated broccoli sprout extract may help type 2 diabetes patients manage their blood sugar, according to a new study. The findings could offer a much needed alternative to address the condition, which has become a worldwide epidemic. Type 2 diabetes afflicts more than 300 million people globally, and as many as 15% of those patients cannot take the first-line therapy metformin because of kidney damage risks. Seeking a more viable path forward, Annika Axelsson and colleagues used a computational approach to identify compounds that might counter the disease-associated gene expression changes associated with type 2 diabetes.

The researchers constructed a signature for type 2 diabetes based on 50 genes, then used publicly available expressio...

An image of tissue from a human colon uses fluorescent staining to show the presence of the protein alpha-synuclein (red) inside gut endocrine cells (green).
Credit: 2017, JCI Insight

Protein linked to Parkinson’s could spread from gut to nervous system. Recent research on Parkinson’s disease has focused on the gut-brain connection, examining patients’ gut bacteria, and even how severing the vagus nerve connecting the stomach and brain might protect some people from the debilitating disease. Duke University researchers have identified a potential new mechanism in both mice and human endocrine cells that populate the small intestines...