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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).

Cancer-associated inflammation boosts ADAR1 enzyme activity

An international team, headed by researchers at the University of California, San Diego School of Medicine, has identified a key enzyme in the reprogramming process that promotes malignant stem cell cloning and the growth of chronic myeloid leukemia (CML), a cancer of the blood and marrow that experts say is increasing in prevalence.

25 Dec 2012

Genetic innovations for pneumonia diagnosis in children

Polymerase chain reaction could help diagnose Mycoplasmia pneumonia infection in children, researchers say.

24 Dec 2012

Autism genome not shy about tinkering with important genes

An international team, led by researchers from the University of California, San Diego School of Medicine, has discovered that "random" mutations in the genome are not quite so random after all. Their study, to be published in the journal Cell on December 21, shows that the DNA sequence in some regions of the human genome is quite volatile and can mutate ten times more frequently than the rest of the genome. Genes that are linked to autism and a variety of other disorders have a particularly strong tendency to mutate.

21 Dec 2012

Roche, PSS partner to develop fully automated emulsion PCR instrument for sequencing

Roche and Precision System Science, Co., Ltd (PSS) today announced the signing of an exclusive agreement to develop and manufacture a fully automated emulsion PCR instrument for Roche's portfolio of next-generation sequencing platforms. It is intended to support Roche's GS Junior and GS FLX+ systems as well as the sequencing platforms that Roche is currently developing.

From Roche Sequencing and Life Science 21 Dec 2012

UAB research succeeds in testing a vaccine against leishmaniasis

A research coordinated by the UAB has succeeded in testing a vaccine against leishmaniasis. The vaccine was tested with the best animal model existing, the golden hamster, and can be produced at low costs by using insect larvae.

21 Dec 2012

New technique may prevent inheritance of mitochondrial diseases in children

A joint team of scientists from The New York Stem Cell Foundation (NYSCF) Laboratory and Columbia University Medical Center (CUMC) has developed a technique that may prevent the inheritance of mitochondrial diseases in children.

21 Dec 2012

Melanoma patients may benefit from microRNA-26a replacement therapy

A University of Colorado Cancer Center study in this month's edition of the Journal of Investigative Dermatology describes a new target and potential treatment for melanoma, the most dangerous form of skin cancer. MicroRNA can decide which genes in a cell's DNA are expressed and which stay silent. Melanoma tends to lack microRNA-26a, which makes the gene SODD go silent.

21 Dec 2012

Ebselen effectively inhibits thioredoxin reductase system in H. pylori, M. tuberculosis

A drug currently being used to treat ischemic strokes may prove to be a significant advance in the treatment of tuberculosis and ulcers. In a new research report appearing online in The FASEB Journal, a compound called ebselen effectively inhibits the thioredoxin reductase system in a wide variety of bacteria, including Helicobacter pylori which causes gastric ulcers and Mycobacterium tuberculosis which causes tuberculosis.

21 Dec 2012

Coffee habit improves survival chances with oral cancer

Drinking more than four cups of coffee per day lowers the risk for death from oral/pharyngeal cancer by almost half compared with drinking none, according to US study findings.

20 Dec 2012

V-chip could allow health care providers to do 50 different tests in one go

A new device about the size of a business card could allow health care providers to test for insulin and other blood proteins, cholesterol, and even signs of viral or bacterial infection all at the same time—with one drop of blood. Preliminary tests of the V-chip, created by scientists at The Methodist Hospital Research Institute and MD Anderson Cancer Center, were published last night by Nature Communications.

20 Dec 2012

Few alcohol-related story ideas from The Methodist Hospital

The holidays are a time to consume -- food, gifts, and spirits. Here are a few alcohol-related story ideas from The Methodist Hospital. Because alcohol's effects on human physiology are complex, advice about is often contradictory.

20 Dec 2012

Ion channel acts as powerful ‘brake’ after epileptic seizures

Given that epilepsy impacts more than 2 million Americans, there is a pressing need for new therapies to prevent this disabling neurological disorder. New findings from the neuroscience laboratory of Mark S. Shapiro, Ph.D., at The University of Texas Health Science Center at San Antonio, published Dec. 20 in the high-impact scientific journal, Neuron, may provide hope.

19 Dec 2012

New antibiotic principle for fighting bacterial infections

Scientists at Karolinska Institutet in Sweden have presented a new principle for fighting bacterial infections, in other words, a new type of antibiotic, in the FASEB Journal.

19 Dec 2012

Budding yeast an acceptable model system to study KP1019 anti-cancer drug

Researchers have found that the budding yeast (Saccharomyces cerevisiae) is an acceptable model system to study KP1019, an anti-cancer drug that uses ruthenium, a rare metal, a new study found. Researchers had previously been interested in studying KP1019 because it is believed to cause cancer cell death and is not known to have negative secondary side effects for healthy tissues.

19 Dec 2012

Study: Purines fend off damage during anesthesia

Anesthesia is quite safe these days. But sometimes putting a patient under to fix one problem, such as heart damage, can harm a different organ, such as a kidney.

19 Dec 2012

Klerokinesis may prevent some cancers from developing

Researchers at the University of Wisconsin Carbone Cancer Center have discovered a new form of cell division in human cells.

18 Dec 2012

Range of epigenetic immunoassays from VolitionRx now available for research use

VolitionRx Limited, a life sciences company focused on developing blood-based diagnostic tests, announces the launch of NuQ, its range of research use only epigenetic immunoassays, to be available for sale at www.nucleosomics.com.

17 Dec 2012

Study reveals how BRCA1 enzymatic activity may stop cancer cell growth

A new study by Georgetown University Medical Center researchers reveals how a well-known tumor suppressor gene may be functioning to stop cancer cell growth.

17 Dec 2012

Loading up on snack foods may increase cancer risk in individuals with Lynch syndrome

A new analysis has found that loading up on snack foods may increase cancer risk in individuals with an inborn susceptibility to colorectal and other cancers. Published early online in CANCER, a peer-reviewed journal of the American Cancer Society, the study suggests that an eating pattern low in snack foods could help these individuals-who have a condition called Lynch syndrome-lower their risk.

17 Dec 2012

Apophysomyces fungus kills 5 people following a massive Joplin tornado

A fast growing, flesh-eating fungus killed 5 people following a massive tornado that devastated Joplin, Mo., according to two new studies based on genomic sequencing by the Translational Genomics Research Institute (TGen) and the U.S. Centers for Disease Control and Prevention (CDC).

16 Dec 2012