DNA News and Research

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DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Mitosis gets harder thanks to new gene discovery

A biological process taught to every pupil studying science at high school has just become a little more complicated thanks to a new discovery published today.

4 Apr 2008

Enzyme complex could be key to new cancer treatments

Penn State scientists are the first to observe in living cells a key step in the creation of adenine and guanine, two of the four building blocks that comprise DNA.

4 Apr 2008

Discovery of gene variant linked to nicotine addiction and lung cancer

Scientists have identified a genetic variant that not only makes smokers more susceptible to nicotine addiction but also increases their risk of developing two smoking-related diseases, lung cancer and peripheral arterial disease.

3 Apr 2008

Surviving without sex - Bdelloid rotifers do!

Birds and bees may do it, but the microscopic animals called bdelloid rotifers seem to get along just fine without sex, thank you.

3 Apr 2008

Genetic variations raise lung cancer risk for smokers and ex-smokers

Two common inherited genetic variations are associated with increased risk of lung cancer for smokers and former smokers, a research team led by scientists at The University of Texas M. D. Anderson Cancer Center reports April 2 in the online edition of Nature Genetics.

3 Apr 2008

HDAC inhibitors show potential as therapeutic agents in treating alcoholism

Reshaping of the DNA scaffolding that supports and controls the expression of genes in the brain may play a major role in the alcohol withdrawal symptoms, particularly anxiety, that make it so difficult for alcoholics to stop using alcohol.

3 Apr 2008

Link between variant in the sequence of the human genome and susceptibility to nicotine dependence

Cigarette smoking is a major public health problem that contributes to millions of deaths around the world each year.

3 Apr 2008

Body mass often down to our genes

Your friend can eat whatever she wants and still fit into her prom dress, but you gain five pounds if you just look at that chocolate cake.

2 Apr 2008

Y chromosome provides new insights into human ancestry

The Y chromosome retains a remarkable record of human ancestry, since it is passed directly from father to son.

2 Apr 2008

Lyme disease - a tough nut to crack!

The bacteria that cause Lyme disease, the most common tick-borne illness in the United States, can linger in mouse tissues long after a full round of antibiotic treatment is completed, report researchers from the University of California, Davis.

2 Apr 2008

Why synthetic estrogens wreak havoc on reproductive system

Researchers at Yale School of Medicine now have a clearer understanding of why synthetic estrogens such as those found in many widely-used plastics have a detrimental effect on a developing fetus, cause fertility problems, as well as vaginal and breast cancers.

1 Apr 2008

New tool to identify the molecular signatures of serious diseases

University of Florida chemists are the first to use a new tool to identify the molecular signatures of serious diseases - without any previous knowledge of what these microscopic signatures or "biomarkers" should look like.

1 Apr 2008

Researchers publish MRI images of genes in action in the living brain

Biologists have just confirmed what poets have known for centuries: eyes really are windows of the soul—or at least of the brain.

1 Apr 2008

Discovery of role of rare gene mutations in schizophrenia

Using an important new method that can be applied in the study of other psychiatric illnesses, scientists at Cold Spring Harbor Laboratory (CSHL) in collaboration with colleagues at the University of Washington (UW) and the National Institute of Mental Health (NIMH), have identified multiple, individually rare gene mutations in people with schizophrenia that may help explain how that devastating illness is caused.

31 Mar 2008

Teenage brains are different

Many parents are convinced that the brains of their teenage offspring are different than those of children and adults.

31 Mar 2008

Ebola virus vaccines for humans

One of the world's deadliest diseases, caused by the Ebola virus, may finally be preventable thanks to US and Canadian researchers, who have successfully tested several Ebola vaccines in primates and are now looking to adapt them for human use.

31 Mar 2008

Researchers examine human embryonic stem cell genome

Stem cell researchers from UCLA used a high resolution technique to examine the genome, or total DNA content, of a pair of human embryonic stem cell lines and found that while both lines could form neurons, the lines had differences in the numbers of certain genes that could control such things as individual traits and disease susceptibility.

31 Mar 2008