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Arthritis drugs help with other inflammatory diseases

July 18, 2008

The Imperial College London researchers who developed effective rheumatoid arthritis drugs through targeting cytokines (immune system signaling proteins) have found that similar anti-cytokine therapies may help with atherosclerosis and other medical conditions.

The researchers previously discovered that in autoimmune diseases (such as arthritis), the body makes excess cytokines, causing the immune system to fight itself. This results in inflammation and tissue destruction. Blocking just one cytokine–Tumor Necrosis Factor (TNF)… read more

Refining Semiconductors, One Atom at a Time

April 8, 2004

A physicist has succeeded in controlling semiconductor doping precisely at the atomic level, allowing for eventually extending Moore’s Law and creating custom-designed molecular circuit elements.

In the experiment, reported in the journal Science, Michael F. Crommie, a professor of physics at the University of California at Berkeley, and his group used a scanning tunneling microscope to add seven potassium dopant atoms to a buckyball molecule, one by one.

The ten most powerful tweets of 2010

December 15, 2010

haiti

From Twitter, Inc.’s 2010: Year in Review. The 10 MOST POWERFUL TWEETS OF 2010.

Twitter Announces @Anywhere Platform

March 16, 2010

Twitter’s Evan Williams has announced @platform, which will allow publishers to integrate Twitter deeper into their sites.

Users will be able to follow a site’s or columnist’s feed without every having to leave the site, and publishers will be able to find more followers.

Hot Advance for Thermoelectrics

February 22, 2007

By trapping organic molecules between a gold surface and the ultrafine gold tip of a scanning tunneling microscope, researchers have shown that the molecules could be used to generate electricity.

“Thermoelectric devices” based on the molecules could prove to be an important source of power.

Patients and researchers collaborate to find medical cures

July 23, 2008

Patients suffering with the daily pain of medical conditions now have a place to go share information and resources with other patients and researchers.

CureTogether, a San Mateo, CA startup, plans to announce Thursday a free health research service to bring together patients and researchers to make discoveries in a new, collaborative way.

The first conditions being studied are migraine, endometriosis, and vulvodynia; each affect more… read more

Author: Mission to moon and beyond will inspire humanity

April 16, 2004

Human exploration of the moon, Mars and beyond will move humanity past terror and war, much like earlier voyages found a new world for Europeans mired in conflict 500 years ago, science fiction author Ray Bradbury told a presidential commission Thursday.

In Map of Brain Junction, Avenues to Answers

December 22, 2010

Researchers at the U.K.-based Sanger Institute have created the first exact inventory of all 1,461 protein components of the neuron synaptic information-processing machinery, called the “post-synaptic density.”

The work should help in understanding how the synapse lays down memories, as well as identify the basis of the many diseases that are caused by defects in the synapse’s delicate machinery. They have also tied their catalog into the… read more

Probing the secrets of sharp memory in old age

March 24, 2010

Changiz Geula, Ph.D. and colleagues have discovered elderly people with super-sharp memory — “super-aged” individuals — who somehow escaped formation of brain “tangles,” which consist of an abnormal form of a protein called “tau” that damages and eventually kills nerve cells.

Environment, lifestyle, and genetics may be key factors. Some super-aged individuals might have a genetic predisposition to being super-aged, while others may help preserve high brain function by… read more

Virtual-Reality Video Game Helps Link Depression To Specific Brain Area

March 2, 2007

Scientists are using a virtual-reality, three-dimensional video game that challenges spatial memory as a new tool for assessing the link between depression and the hippocampus, the brain’s memory hub.

Alzheimer’s drug ‘halts’ decline

July 30, 2008

Aberdeen University researchers have developed a drug that may halt the progression of Alzheimer’s disease by targeting build-up of Tau tangles (clumps of protein inside nerve cells in the brain).

Trials of the drug Rember in 321 patients showed significant decreases in the rate of mental decline in patients taking the drug. Imaging data also suggested the drug may have had its biggest effect in the parts of the… read more

Enzyme ‘Ink’ Shows Potential for Nanomanufacturing

April 23, 2004

Enzymes can be used to create nanoscale patterns on a gold surface, Duke University engineers have demonstrated, representing an important advance in nanomanufacturing.

They used an enzyme called DNase I as an “ink” in a process called dip-pen nanolithography (for nanoscale etching or writing). The dip-pen allowed them to inscribe precise 100-nanometers-wide stripes of DNase I ink on a gold plate, which they had previously coated with a thick… read more

The Year in Biomedicine

December 29, 2010

Two steps forward and one step back for stem cells, genome sequencing to diagnose disease, and the creation of artificial life.

Researchers Take Promising Approach to Chemical Computing

April 2, 2010

European researchers have begun work on the Neuneu project, a biologically inspired, “wet” computer designed to mimic living brain functions through chemical assembly processes and pharmaceutical manufacturing techniques.

It would be a massively parallel computer made of lipid bubbles, which are seen as a rough physical emulation of neurons, using “BZ computation,” a form of chemical computing used in molecular-computation research.

The project aims to show how a… read more

Worldwide warning issued on mercury-contaminated fish

March 12, 2007

The health risks posed by mercury contaminated fish is sufficient to warrant issuing a worldwide general warning to the public–especially children and women of childbearing age–to be careful about how much and which fish they eat.

The declaration, developed at the Eighth International Conference on Mercury as a Global Pollutant, is a synopsis of the latest scientific knowledge about the danger posed by mercury pollution.

It… read more

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