Category Archives: DNA Research

New Doctors’ DNA Ages 6 Times Faster Than Normal in First Year

A new study finds that the long work hours of an intern’s first year of medical residency are associated with accelerated cellular aging. It’s the first longitudinal study of people exposed to such prolonged stress.

Researchers break down DNA of world’s largest mammals —

Scientists know that age and weight are risk factors in the development of cancer. That should mean that whales, which include some of the largest and longest-lived animals on Earth, have an outsized risk of developing cancer.

DNA To The Rescue: How Researchers Are Finding Illegal Shark Fins

Another shipment has come, and you watch as the boats are boarded and searched. You notice specks of blood in the corners of the vessel and wonder just what is waiting inside the freezers and fridges. As you walk into a fridge, you are stunned to see it lined from the floor to the ceiling with fins. Now comes the hard part… identifying them all.

Researchers seek 25,000 DNA samples for Las Vegas population study

LAS VEGAS (FOX5) – Genetic testing is one of the hottest health trends. The Healthy Nevada Project said it is looking for 25,000 people from Clark County to hand over their DNA.

The terrifying DNA discoveries that are making science-fiction fact

Imagine a world where parents can give birth to superbabies with bones so strong they’re impervious to a surgical drill and a heart less prone to failure. A world where a child has DNA from three parents, not two. A world where it’s possible for a woman to have her favorite movie star’s child simply by collecting a few of his skin cells. Genetic technology is making it all a reality, horrifying some and heartening others.
Reproductive advances are arriving so rapidly, we’ve already entered the realm of science-fiction and are on the verge of making truly astounding leaps.

IUPUI Researcher Gets $1.1M Award for Forensic DNA Phenotyping Tools

Blue and white helixNEW YORK (GenomeWeb) – The US Department of Justice’s National Institute of Justice has awarded a forensic geneticist at Indiana University-Purdue University Indianapolis $1.1 million to develop forensic DNA phenotyping tools.

Feds aim to fund forensic science center

Blue Helix2A federal agency within the Commerce Department is looking to give $20 million to fund a new forensic science research center.
The National Institute of Standards and Technology (NIST) on Tuesday announced a competition for money to build the center, which will work on establishing “a firm scientific foundation” for key methods in the sciences.

NIST Mobile Forensics Workshop and Webcast

NIST BannerOn June 18, NIST will host the NIST Mobile Forensics Workshop and Webcast, a free one-day workshop and live webcast exploring the latest technology advancements and applications in mobile device forensics.
Goal:
To educate attendees on the latest developments in the forensic analysis of mobile devices and how technologies are used in casework. The information provided will increase the situational awareness of investigators and criminal justice stakeholders across the United States about the latest trends, analysis protocols, and issues encountered when applying analysis tools to mobile devices.
Register Here.

Paper Details New Pre-PCR Method for STR Analysis of Forensic Samples

helix2An Australian duo has developed a pre-PCR technique to improve results in forensic DNA analysis. The method, published this month in BioTechniques, is designed to eliminate stochastic sampling effects resulting from the miniscule amounts of starting material and possible contamination common in crime scene analysis. This is accomplished by initially increasing low-abundance template copy number in a linear, rather than exponential, manner.

Linear amplification of target prior to PCR for improved low template DNA results

low copy numberForensic analysis of genetic material is often limited by the quantity and quality of DNA available for examination. Stochastic effects associated with low amounts of starting template can lead to a reduction in the quality of the result, making interpretation difficult. This paper presents an amplification method to copy target DNA in a linear fashion prior to short tandem repeat (STR) analysis to increase the available starting template without introducing the amplification bias seen in other methods used to increase the sensitivity of PCR. Results show that implementing the pre- PCR procedure allows for greater allele recovery in multiplex STR analysis compared with samples that were not subjected to prior processing.

Sam Houston State University Receives Grant to Research Quicker Identification of Mass Disaster Victims

Taiwan EarthquakeSam Houston State University‘s Southeast Texas Applied Forensic Science Facility has received a National Institute of Justice grant to further research in genotyping in conditions related to natural and manmade disasters. Whether a mass disaster is a result of humans, such as in war, or is a result of a natural force of nature, such as a hurricane or other natural cause, the chaos and disorder in the wake of human disasters often leads to a slow identification of victims. In many cases, a disaster area can be hot, humid, without water or electricity, and can delay the ability to obtain readable DNA, which is necessary for identifying victims.

DNA Research Reveals Uros People of Peru and Bolivia to Have Distinctive Genetic Ancestries

Uros IslandsNew genetic research led by the Genographic Project team shows a distinctive ancestry for the Uros populations of Peru and Bolivia that predates the arrival of the Spanish conquistadores and may date back to the earliest settlement of the Altiplano of the central Andes some 3,700 years ago.

Idaho State Police DNA lab closing backlog in processing

Idaho labMERIDIAN, Idaho (KBOI) — The Idaho State Police DNA lab is expected to finish off its backlog of samples by July.
The timing is important because on July First, Idaho law will require all convicted felons to submit a DNA sample for the national database.

Unearthed after seven centuries the ‘Black Death’ pit skeletons that could unravel the mystery of what caused the plague

blackdeathThirteen skeletons, lying in two neat rows 2.4m beneath a road in Farringdon have been unearthed by excavations for London’s Crossrail project.

DNA Analysis Finds Human Y Chromosome Much Older Than Previously Thought

Y chromosomeA newly discovered Y chromosome places the most recent common ancestor for the Y chromosome lineage more 100,000 years before the oldest known anatomically modern human fossils.