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Carnegie Mellon scientists create PNA molecule with potential to build nanodevices
For the first time, a team of investigators at Carnegie Mellon University has shown that the binding of metal ions can mediate the formation of peptide nucleic acid (PNA) duplexes from single strands of PNA that are only partly complementary.   view more (2005-10-04)

Accelerated evolution converts RNA enzyme to DNA enzyme in vitro
This 'evolutionary conversion' provides a modern-day snapshot of how life as we understand it may have first evolved out of the earliest primordial mix of RNA-like molecules-sometimes referred to as the "pre-RNA world"-into a more complex form of RNA-based life (or the "RNA... view more (2006-03-28)

Yale study explains complex infection fighting mechanism
Yale School of Medicine researchers report in Nature Immunology how infection fighting mechanisms in the body can distinguish between a virus and the healthy body, shedding new light on auto immune disorders.   view more (2006-01-11)

Immune system response to viral DNA is unique
The human body has a unique immune system response to foreign DNA, suggesting that DNA viruses and RNA viruses are detected by different mechanisms.   view more (2006-01-25)

New data supports a non-invasive approach to routine prenatal genetic testing
Research studies demonstrating the viability of an approach to routinely detect the presence of fetal DNA in a mother's blood to accurately diagnose or rule out genetic defects — as early as the first trimester — was presented today at the 27th Annual Meeting of the Society for... view more (2007-02-12)

Controversial findings help explain evolution of life
Chemists at Oregon State University have pioneered a controversial theory about how supposedly-stable DNA bases can be pushed into a "dark state" in which they are highly vulnerable to damage from ultraviolet radiation - an idea that has challenged some of the most basic concepts of... view more (2006-04-07)

Simple membranes could have allowed nutrients to pass into primitive cells
When the first cells developed, how could they bring molecules from the environment into their living interior without the specialized structures found on the modern cell membrane?   view more (2008-06-05)

STN International Launches New Biosequence Database
Nucleotide and amino acid sequence database jointly produced by FIZ Karlsruhe and WIPO released Karlsruhe, Germany - FIZ Karlsruhe, one of Europe's leading providers of information services, and European partner of premier science and technology online service STN International, has announced the... view more (2003-03-07)

No Increased Risk of Miscarriage From Folic Acid Supplements (p 796)
Women who consume folic acid supplements around the time of conception are not at an increased risk of miscarriage, conclude authors of a population-based study published in this weke’s issue of THE LANCET. Although it is well known that folic acid supplements can reduce the risk of infant... view more (2001-09-05)

Folic acid deficit increased risk of miscarriage in early pregnancy
Low levels of folic acid in plasma have been associated with an increased risk of miscarriage in a study published in Journal of the American Medical Association lately. On the other hand, no connection was found between high levels of folic acid and increased risk of miscarriage. In the US folic... view more (2002-10-22)

Evidence for warts treatments is weak
Apart from topical treatments containing salicylic acid, there is currently no clear evidence that any other treatments for warts are more effective, say researchers in this week’s BMJ.   view more (2002-08-28)

Stability of mRNA/DNA and DNA/DNA duplexes modulates mRNA transcription
The distribution of the four nucleotides along the DNA sequence encodes the genetic information in living systems. However, do nucleic acids possess other attributes that contribute to their biological functions?   view more (2007-03-14)

Genome of PURAC's lactic acid-producing micro-organism completed by Greenomics™
PURAC and Greenomics™ (Plant Research International B.V.) announced the completion of the whole-genome sequencing of a production strain of PURAC that produces high amounts of lactic acid. Greenomics™ conducted the shotgun cloning and high quality sequencing of the genome up to a... view more (2002-05-14)

Food Fortification With Vitamin B12 In Addition To Folic Acid Could Reduce Risk Of Cardiovascular Disease (p 227)
Authors of a research letter in this week's issue of THE LANCET conclude that vitamin B12 in addition to folic acid should be used to fortify food to lower concentrations of the blood protein homocysteine, thereby potentially reducing the risk of cardiovascular disease. Mandatory fortification of... view more (2002-01-17)

Powerful mold-inhibiting bacteria patented
Bacteria that produce lactic acid have been used for thousands of years to preserve food. Some lactic acid bacteria also produce several other mold-inhibiting substances and are therefore of special interest to agriculture and the foodstuffs industry. This is demonstrated in a dissertation by... view more (2005-04-08)

Kiss goodbye to biopsies
JUST a drop of blood or urine might be enough to reveal if a patient has cancer, what type it is and whether it`s treatable.         "One day, there could be one biochip for analysing all cancers," says Christian Piepenbrock, head of bioinformatics at... view more (2002-03-06)

Folic Acid Supplements Not Linked To Multiple Births (p 380)
Results of a Chinese population-based study in this week's issue of THE LANCET provide strong evidence that women who take folic acid supplements during pregnancy do not have an increased likelihood of having a multiple birth. Folic acid supplements are recommended for women of childbearing age to... view more (2003-01-29)

Fatty meals worsen the sensations of heartburn
A fatty meal worsens heartburn, but without increasing the amount of acid reflux from the stomach to justify the sensations, shows research in Gut. Eleven patients suffering from acid reflux, producing painful heartburn, took part in the study. After being given drugs to suppress their normal... view more (2001-10-12)

Only one-third of women take vitamin to help prevent serious birth defects, survey finds
Only one-third of childbearing age women are taking a multivitamin containing the B vitamin folic acid daily to prevent serious birth defects of the brain and spine in their future babies, according to a decade of March of Dimes surveys.   view more (2005-09-30)

Thale cress goes on the defensive
Thale cress has a complicated defence technique against insects and microorganisms that use the plant as a source of food.   view more (2007-05-15)

Acid reflux is not just caused by lager and curry, but also our genes
Almost half the chance of developing acid reflux, which doctors refer to as GORD, may be down to our genes, and not just what we eat and drink, a twin study in Gut suggests. Acid reflux (gastro-oesophageal reflux disease) is one of the most common digestive disorders in the developed world. It is... view more (2003-07-11)

Folic acid cuts risk of cleft lip
Taking folic acid supplements in early pregnancy seems to substantially reduce the risk of cleft lip.   view more (2007-01-29)

Multivitamins with 0.4 - 0.8 mg of folic acid are best in birth defect prevention
Periconceptional use of folic acid supplements is effective for the primary prevention of neural-tube defects and is recommended by reproductive health researchers. Recent research in this area, however, centres on two main debated questions. The first one is whether the use of folic acid alone or... view more (2004-05-27)

UAB creates the first Internet server to search for genetic diversity
Researchers from the Universitat Autònoma de Barcelona have developed the first international server that allows the user to analyze genetic diversity on a large scale. The web service, published in the special edition of Nucleic Acids Research on bioinformatics, will facilitate research... view more (2004-07-19)

Folic acid could prevent heart disease
Folic acid could dramatically reduce the risk of heart disease, deep vein thrombosis, and stroke if levels of homocysteine (an amino acid) were reduced, according to researchers in this week’s BMJ.   view more (2002-11-20)
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