September 18, 2011

What One Protein Does

1 Found: Cause of Missing Fingerprints

People affected by adermatoglyphia, known as Immigration Delay Disease, have no fingerprints and their hands don't sweat, but researchers now say that they've identified where the responsible genetic alteration is located. Published in American Journal of Human Genetics, the research provides insight into the consequences of lacking a single protein. Although very rare, adermatoglyphia is annoying to individuals who experience problems passing through security during immigration into countries like the U.S. To find out why some people don't have fingerprints, researchers studied a Swiss family with nine members who have the condition. A genetic analysis revealed that those with adermatoglyphia have decreased levels of the short skin-specific version of the SMARCAD1 gene.

More at Eurekalert | Posted 6 years ago by Peggy Rowland

Previously: IPhone That Can Detect Your Mood in a Heartbeat

Tags: Adermatoglyphia, Dermatoglyphs, Immigration Delay Disease, Sackler Faculty of Medicine, Tel Aviv Sourasky Medical Center, Missing Fingerprints, People with No Fingerprints, Effect of Missing Protein, American Journal of Human Genetics, gene SMARCAD1

Comment on This | Was this Interesting? Yes! (43%) / No! (57%)

Alters Communication in Brain

2 Serotonin Levels and Aggression Linked

A new study conducted by Cambridge University found that individuals with aggressive behavior have lower than normal serotonin levels in the brain. To lower serotonin participants’ diets were changed by giving them an amino acid mixture minus tryptophan which is needed to synthesize the neurotransmitter. A complete mixture was given to them on placebo day. While they looked at mad, sad and neutral facial expressions and underwent an fMRI, it was noted that the amygdala and prefrontal cortex did not communicate as strongly when serotonin levels were reduced. The depletion diet further lowered serotonin in those who were determined to have aggressive tendencies. The goal of this research is to be able to screen people for a variety of psychiatric disorders and develop better therapies.

More at Yahoo! Reuters | Posted 6 years ago by Kristie Hayes

Previously: Study Shows That Reality TV is More Aggressive

Tags: Aggression, FMRI, Psychiatric Problems, Serotonin, Cambridge University, Aggressive Behavior, Brain Serotonin, Amygdala, Prefrontal Cortex

Comment on This | Was this Interesting? Yes! (48%) / No! (52%)

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