Niels Groenewegen

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New test can predict cancer up to 13 years before disease develops

People who develop cancer have shorter telomeres, the caps at the end of chromosomes which protect the DNA<p>Genetic changes can predict cancer up to 13 years in the future, according to new research.<p>Harvard and Northwestern University discovered that tiny but significant changes are already happening …

Cancer

Crispr: is it a good idea to ‘upgrade’ our DNA?

Last year Tony Perry made mice that would have been brown-furred grow up white instead. That Perry, a molecular embryologist at the University of Bath, tweaked their coat colour isn’t new – scientists have been making so-called knock-out mice, in which certain genes are disabled, since the …

Genetics

Artificial Enzymes from Artificial DNA Challenge Life As We Know It

In the decade or so since the Human Genome Project was completed, synthetic biology has grown rapidly. Impressive advances include the first bacteria …

World-First Artificial Enzymes Suggest Life Doesn't Need DNA or RNA

For the first time, scientists have built artificial enzymes using lab-grown genetic material called XNA. The experiment bolsters the idea that life …

World's first artificial enzymes created using synthetic biology

(Phys.org)—Medical Research Council (MRC) scientists have created the world's first enzymes made from artificial genetic material. Their synthetic …

Gene discovery prevents weight gain with a high-sugar diet

Imagine being able to take a pill that lets you eat all of the ice cream, cookies, and cakes that you wanted – without gaining any weight.<p>New …

Researchers develop green tea-based 'missiles' to kill cancer cells more effectively

Green tea has long been known for its anti-oxidant, anti-cancer, anti-aging and anti-microbial properties. A group of researchers from the Institute …

RCas9: A programmable RNA editing tool

A powerful scientific tool for editing the DNA instructions in a genome can now also be applied to RNA, the molecule that translates DNA's genetic …

Bacterial 'chatter' tells cancer cells to die - Futurity

A bacterial communication system can tell cancer cells how to act—or even to die—on command.

Editing The Genes Of Superbugs To Turn Off Antibiotic Resistance

Fighting bacteria’s ability to fight<p>Over the past decade, deadly bacteria such as MRSA, <i>C. difficile</i>, and even tuberculosis have developed numerous mechanisms to keep themselves alive at all cost – mostly against antibiotics. Some bacteria have the ability to pump invading antibiotics out of their …

Microbiology

'Bacterial nanowires' may lead to breakthroughs in semiconductors, fuel cells and more

For about a decade, scientists have known about bacteria that "breathe" using rocks and minerals in place of oxygen. Now a new study reveals the surprising way they do it.<p>The bacteria survive by "breathing" through a system of "bacterial nanowires" that connect to iron-based material nearby. …

Superbugs meet their match in rapid genome sequencing

It was the first sign of trouble. Three babies on the special care ward at Rosie Hospital in Cambridge tested positive for the MRSA superbug. Fearing an outbreak of the dangerous organism, managers ordered a deep clean. Staff duly disinfected the ward and went back to work as normal. Four days …

Powerful Genetic Engineering Technique Could Modify Entire Wild Populations

When it comes to genetic engineering, we’re amateurs. Sure, we’ve known about DNA’s structure for more than 60 years, we first sequenced every A, T, …

Genetics

The secret to acing exams

In tests that offer a choice of answers, you can exploit hidden patterns to get full marks if you know how, says William Poundstone.<p>Our fates in school and beyond are decided by pop quizzes, final exams, drivers’ exams, and professional exams. Many are true-or-false, or multiple-choice. If you get …

Mathematics

How DNA Scissors Can Perform Surgery Directly On Your Genes

These gene-slicers may help tackle HIV, Alzheimer's, and brain cancer.<p>Jay Johnson’s DNA was cut into pieces. Tiny molecular scissors chopped it into slices the cell couldn’t readily repair. The cell did its best at a speedy patch-up job, but the gene was left effectively useless. As the battered …

Genetics

Scientist develop 'mutant worm' which could help you stay sober

The 'James Bond' style drug could allow one spy to drink another under the table whilst maintaining a clear head<p>A 'James Bond'-style drug which would allow a spy to drink somebody under the table and not get drunk himself could be developed in the future - after scientists developed a "mutant worm" …

Chemists Expand Nature's Genetic Alphabet

For the first time, scientists have expanded life's genetic alphabet, by inserting two unnatural, man-made "letters" into a bacterium's DNA, and by showing that the cell's machinery can copy them.<p>The advance means that scientists have a new tool for exploring how life encodes information, which …

Your Body Can Kill Cancer. It Just Needs Better Instructions.

Researchers have been programming peoples' immune systems to recognize and destory cancer.<p>Part of what makes cancers so insidious is that they’re not invaders: They’re our own cells turned against us. That means the body usually doesn’t see them as a threat. But over the last few years, teams at …

Cancer

Last-Resort Antibiotics In Jeopardy As Use Rises Globally

The total doses of antibiotics sold in clinics and pharmacies around the world rose 36 percent from 2000 to 2010, scientists reported Wednesday.<p>The finding, published in <i>The Lancet Infectious</i> <i>Disease,</i> comes from the first study to look at global antibiotic consumption in the 21st century. And it …

The ultimate comeback: Bringing the dead back to life

A radical procedure that involves replacing a patient's blood with cold salt water could retrieve people from the brink of death, says David Robson.<p>“When you are at 10C, with no brain activity, no heartbeat, no blood – everyone would agree that you’re dead,” says Peter Rhee at the University of …

Medicine

Scientists discover how to date fingerprints

Dutch forensic experts say they have discovered how to accurately date fingerprints, a breakthrough that could one day let police date crime scene prints from years ago.<p>"It's not quite the Holy Grail of fingerprinting, but it's a very important discovery," Marcel de Puit, fingerprint researcher at …