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DNA 6 articles

E-Cigarette Vapor Can Alter DNA in Mouth Cells, Research Says

Researchers have found a high likelihood that the vapor from e-cigarettes changes the DNA in mouth cells. Irfan Rahman, a biochemist at University of Rochester in New York, is well-versed in conducting studies regarding the potential harm caused by pollutants, including e-cigarettes. Rahman told Science News in a statement last year that many teens and young adults admitted to dry and scratchy throats when vaping. For some, vaping caused coughing and mouth bleeds. “We’ve got to start looking into these things,” said Rahman, “and see what’s going on.” E-cigarettes are devices made up of a battery, an internal heating coil, and a liquid ... Read More

Fraudulent mislabeling of seafood products rampant, DNA testing finds

Genetic testing of hundreds of seafood samples found that one-third of the products were mislabeled as being something other than what the packaging said, according to the ocean conservation group Oceana. The group’s study, conducted to determine whether seafood packaging is “honestly labeled,” examined 1,215 seafood samples collected from nearly 674 retail stores in 21 states. DNA testing on the samples found that 33 percent of the products were mislabeled according to U.S. Food and Drug Administration (FDA) guidelines. According to Oceana, “Of the most commonly collected fish types, samples sold as snapper and tuna had the highest mislabeling rates … ... Read More

Lifelong flu shot in development

Researchers are hoping that new technology may allow them to produce an influenza vaccination that can last a lifetime, eliminating the need for annual flu shots. For the first time in infectious disease research, a vaccine against the flu has been made out of messenger RNA (mRNA), the genetic material that controls the production of proteins. Unlike previous flu shots, the new vaccine may be able to stand up over time as well as be made fast enough to stop a pandemic in its tracks. One of the challenges with flu shots is that the viruses constantly evolve, so a ... Read More

FDA to consider approval of personalized DNA testing kit to determine disease risk

Genetic test maker 23andMe has applied for Food and Drug Administration (FDA) approval of a saliva-based DNA test that would enable consumers to look at their genetic code for information about their ancestry and what diseases they may develop in the years to come. Such personalized kits have caught flack for claiming to help users detect if they are likely to develop diseases such as breast cancer, heart disease and Alzheimer’s disease. Geneticists say that how DNA variations lead to certain diseases is still poorly understood and that tests that claim to predict these risks is not reliable. But the ... Read More

Corroding metal hip implants may cause DNA damage, medical problems

Corroding debris from failing metal-on-metal artificial hips release Cobalt 2+ ions in surrounding tissue, which cause inflammation and may also do damage to DNA which could result in medical complications including cancer, according to researchers from Imperial College London and Ohio State University. Metal-on-metal hip replacement systems were introduced in the early 2000s as a more durable alternative to traditional ceramic or plastic hip implants. But the devices began failing at higher than expected rates after just five years or less. What surgeons found is that the failures were triggered by inflammation in the tissue surrounding the implant. This inflammation was ... Read More

LSU study finds BP oil spill damaged fish at the genetic level

A slew of upbeat public relations and advertising campaigns, together with a healthy dose of political spin, have helped rehabilitate the public’s perception of the Gulf Coast, left battered by the BP oil spill. But while tourists return to the Gulf in record numbers, the results of a new study by a group of scientists from Louisiana State University offer strong evidence that, despite appearances, all is not right in the Gulf. The study, published this week in the National Academy of Sciences Journal, has found that BP’s oil spill is taking a toll on an abundant species of fish ... Read More