chemical reaction News and Research

RSS

Three genes play a role in breast cancer's spread to the brain

New research led by investigators at Memorial Sloan-Kettering Cancer Center (MSKCC) identifies three genes that specifically mediate the metastasis, or spread, of breast cancer to the brain and illuminates the mechanisms by which this spread occurs. The study was published online today in Nature.

6 May 2009

New device allows for self-monitoring of blood lactate level

Performance athletes need to know their blood lactate level. It indicates how much lactic acid has collected in their blood as a result of physical exertion and enables conclusions to be drawn about their fitness. Professional athletes therefore regularly have to attend performance diagnosis sessions. As they pedal a cycle ergometer at various levels of exertion, a doctor takes blood samples from an earlobe. A special device then measures the concentration of lactate in the blood.

6 May 2009

Discovery of new chemical reaction for DNA production in bacteria and viruses

A team of researchers has discovered a new chemical reaction for producing one of the four nucleotides, or building blocks, needed to build DNA.

16 Apr 2009

Chemists synthesize natural alkaloid that could have anti-cancer properties

The club moss Lycopodium serratum is a creeping, flowerless plant used in homeopathic medicine to treat a wide variety of ailments.

15 Apr 2009

Researchers study signaling networks that set up genetic code

In a new study, researchers at the University of Illinois have identified and visualized the signaling pathways in protein-RNA complexes that help set the genetic code in all organisms.

14 Apr 2009

Niacin findings could open up new avenues for drug discovery

Deft molecular detective work at Duke University Medical Center suggests that scientists may soon be able to resurrect niacin as one of the best and cheapest ways to manage cholesterol.

6 Apr 2009

Researchers at the UJI increase the efficiency of photocatalysts used in cancer treatments

Researchers at the Universitat Jaume I (UJI) in Castellon have found porous polymeric materials that increase the efficiency of traditional photocatalysts in the treatment of cancer.

6 Apr 2009

Alzheimer's disease linked to mitochondrial damage

Investigators at the Burnham Institute for Medical Research (Burnham) have demonstrated that attacks on the mitochondrial protein Drp1 by the free radical nitric oxide-which causes a chemical reaction called S-nitrosylation-mediates neurodegeneration associated with Alzheimer's disease.

5 Apr 2009

Radiolabeled nanoparticles boost PET-CT combination imaging

In an attempt to decrease the amount of cancer-targeting nanoparticle needed to image tumors, a team of investigators at the Massachusetts General Hospital and Harvard Medical School has developed a simple method for creating iron oxide nanoparticles labeled with 18F, a radioisotope that is easily detected using positron emission tomography (PET). The result is a nanoparticle that can be imaged using PET, computerized tomography (CT), and fluorescence imaging.

23 Feb 2009

Scientists map steps to block enzyme phosphodiesterase 5's action in heart failure

Taking a cue from the way drugs like Viagra put the biological brakes on a key enzyme involved in heart failure, scientists at Johns Hopkins have mapped out a key chemical step involved in blocking the enzyme.

12 Nov 2008

Herpes drug Acyclovir could help control HIV

Acyclovir -- a low-cost, generic drug used to treat herpes -- also might help control HIV in people living with both viruses, according to a study published Wednesday in the journal ell Host and Microbe, Reuters reports.

15 Sep 2008

Molecular clock could predict risk for developing breast cancer

A chemical reaction in genes that control breast cancer provides a molecular clock that could one day help researchers more accurately determine a woman's risk for developing breast cancer and provide a new approach for treatment, UT Southwestern Medical Center researchers have found.

15 May 2008

New horizons in the creation of synthetic enzymes

Mankind triumphed in a recent "competition" against nature when scientists succeeded in creating a new type of enzyme for a reaction for which no naturally occurring enzyme has evolved.

26 Mar 2008

Birth of an enzyme

Mankind triumphed in a recent 'competition' against nature when scientists succeeded in creating a new type of enzyme for a reaction for which no naturally occurring enzyme has evolved.

25 Mar 2008

Designer enzymes

Chemists from UCLA and the University of Washington have succeeded in creating "designer enzymes," a major milestone in computational chemistry and protein engineering.

20 Mar 2008

Portable DNA sensors

A researcher at the National University at San Diego has taken a mathematical approach to a biological problem - how to design a portable DNA detector.

11 Mar 2008

Discovery of gene expression pathway that influences process of oxidative stress

The same chemical reaction that causes iron to rust plays a similarly corrosive role in our bodies.

21 Feb 2008

Insights into the physics of brain activity

The same rules of physics that govern molecules as they condense from gas to liquid, or freeze from liquid to solid, also apply to the activity patterns of neurons in the human brain.

17 Feb 2008

New understanding of cancer initiation

Researchers at the University of Nebraska Medical Center (UNMC) in Omaha have assisted in a significant discovery - the understanding of a common mechanism of cancer initiation - that could result in better cancer assessment, prevention and detection.

7 Feb 2008

Scientists find missing evolutionary link using tiny fungus crystal

The crystal structure of a molecule from a primitive fungus has served as a time machine to show researchers more about the evolution of life from the simple to the complex.

3 Jan 2008