10. Chocolate contains tryptophan, a chemical in the brain that is used to produce the neurotransmitter, serotonin. High levels of serotonin stimulate the secretion of endorphins, and produce feelings of elation.  Serotonin is found in the antidepressant Prozac, and the designer drug “ecstasy” produces its effects by increasing serotonin levels in the brain.  So… antidepressants, illegal drugs, or a Hershey’s bar.  You pick. 

Challenging Nature is the title of my new column here on Scientific Blogging as well as the title of my new book. Since the idea of challenging nature may seem heretical to some, I will provide a brief explanation here of both the rationale for my argument and the opposition it faces. 

The Allen Brain Atlas, a genome-wide map of the mouse brain on the Internet, has been hailed as “Google of the brain.” The atlas now has a companion or the brain’s working molecules, a sort of pop-up book of the proteins, or proteome map, that those genes express.

The protein map is “the first to apply quantitative proteomics to imaging,” said Richard D. Smith, Battelle Fellow at the Department of Energy’s Pacific Northwest National Laboratory, who led the mapping effort with Desmond Smith of UCLA’s David Geffen School of Medicine.


Caption: Abundance profiles of four different proteins compiled from 1 millimeter cubes (voxels) in a mouse brain.

Before publishing the first issue of Gene Genie, a blog carnival on genes, I list here the most interesting announcements and findings on genes from the past day.

Submissions are still welcome. It’s going to be the first issue of this project, so I need many many articles to be submitted.

Based on Timothy Erickson’s thoughts, I decided to start a new blog carnival on genes and gene-related diseases. Our plan is to cover the whole genome before 2082 (it means 14-15 genes every two weeks).

Please take a look at the “official” page of the carnival. (Suggestions are most welcome!)

Stem cell technique helps women grow their own implants

Daily Mail - Women have grown their own breast implants through pioneering stem cell treatment, it emerged yesterday. Scientists harvested the stem cells from the women's own fat and encouraged them to form breast tissue...

Global-warming skeptics cite being 'treated like a pariah'

There's science in love, you know, and that means there's science in Valentine's Day. Science on Valentine's Day is like cold fusion instead of ethanol. Completely wonderful. And we have it all right here.

Not sure who to date? Garth Sundem answers it in The Valentine's Day Man-O-Meter. Be sure to take it as gospel because he never just makes stuff up.
There's science in love, you know, and that means there's science in Valentine's Day. Science on Valentine's Day is like cold fusion instead of ethanol. Completely wonderful. And we have it all right here.

VK Raina, leading glaciologist and former ADG of the Geological Society of India, told the Hindustan Times that out of 9,575 glaciers in India, till date, research has been conducted only on about 50. Nearly 200 years data has shown that nothing abnormal has occurred in any of these glaciers.

It is simple. The issue of glacial retreat is being sensationalised by a few individuals, the septuagenarian Raina claimed.

New research challenges traditional perceptions of contemporary climate as sole determiner of richness of species.

The climate is changing! But how does that affect nature? New research challenges traditional perceptions of contemporary climate as sole determiner of richness of species.

An international research team led by Professor Carsten Rahbek from Department of Biology, University of Copenhagen, questions traditional beliefs that contemporary climate alone determines richness of species, that is, how life is distributed on earth. The current issue of Science magazine highlights the research in Editor’s choice.

An artificial nose could be a real benefit at times: this kind of biosensor could sniff out poisons, explosives or drugs, for instance. Researchers at the Max Planck Institute for Polymer Research and the Max Planck Institute of Biochemistry recently revealed a technique for integrating membrane proteins into artificial structures.

Membrane proteins have several important functions in the cell, one of which is to act as receptors, passing on signals from molecules in the air, for example, to the cell interior. They are thus ideal biosensors, but until now were difficult to access in the lab.