Author : Andreja Gregoric

mosaic

Scientist Confirm That The Human Body Is A Mosaic Of Different Genomes

A new study has confirmed that the human body is, in fact, a complex mosaic made up of clusters of cells with different genomes. The largest such study to date compiles data from thousands of samples collected from about 500 people and 29 different types of tissue. Scientists say that “normal” human tissues are permeated with mutations and many cells in the body bear mutations that could contribute to cancer. These findings could help scientists better understand how cancer starts.

stress

Scientists Developed a Simple Test That Can Measure Your Stress Levels

Stress, “the silent killer” of the modern age, could finally become simple to detect and quantify. Researchers from the University of Cincinnati (UC) have developed a new test that can easily measure common stress hormones using sweat, blood, urine or saliva. The aim is to eventually have an accessible device that patients can use at home to monitor their health.

laboratory

Researchers Speed Up Drug Discovery With New Zombie-Like Cells

Scientists from the University of Alabama (UA) have invented a new and bizarre technique to discover novel natural compounds in cells. It involves human, “zombie-like” cells that are technically no longer alive but their membranes continue to bind different and potentially useful compounds in samples. This technique may allow scientists to screen natural products for drugs at a faster pace.

coca-cola

Coca-Cola Backed Nutrition Research Holds Back Anti-Sugar Results

The Coca-Cola Company, one of the world’s largest producers of sugary beverages, has funded scientific research on fitness and public health at universities around the world. The newly-uncovered documents reveal that the money comes with strings attached. Five different funding agreements from universities show the company can prevent the results from going public, and has done so in the past. Similar concerns about conflicts of interest in commercially-funded research led to increasing funding disclosure requirements in science. However, researchers believe that this is probably not enough to assess the full extent of bias.

virus

Huge Study Finds “Zero Risk” Of HIV Transmission During Drug Treatment

Scientists hope an end to the Aids epidemic could be in sight after eight years long study found men whose HIV infection was fully suppressed by antiretroviral drugs had no chance of infecting their partner. Not a single one of the HIV-negative men contracted the virus from their partner. The success of the medicine is notable and raises hope. If everyone with HIV were fully treated, there would be no further infections.

pests

CRISPR Gene-Editing Has Opened Doors for Exotic Model Organisms

Scientists are trying to move beyond conventional model organisms, like fruit flies, zebrafish, yeast, and mice. They started using CRISPR gene-editing technology to craft new model organisms or to study the animals that they are more interested in. The genetic alterations generally take hold but the practical challenges of breeding and maintaining unconventional lab animals persist.

HIV

Scientists Gene-Edited HIV to Cure “Bubble Boy” Disease

A new gene therapy approach developed at St. Jude Children’s Research Hospital has cured infants born with X-linked severe combined immunodeficiency (SCID-X1), known as “Bubble Boy” disease. The patients recovered with fully functioning immune systems and started producing immune cells, including T cells, B cells, and natural killer (NK) cells. The researchers achieved that by hijacking the HIV virus to replace the mutated gene, called IL2RG, with a corrected copy.

astronaut

Twin Study Shows That Genetic Changes Caused by Space Travel Are Temporary

American twin astronauts provided NASA scientists with rare data on how long-term spaceflight affects the human body. While one brother spent a record-setting 340 days in outer space, the other was stranded on Earth. They spent years under a medical microscope. A comparative study on their genetic profiles showed differences in length of telomeres and gene expression, which seemed to diminish slowly over time.

web

Scientists Are Gene-Hacking Bacteria To Mass-Produce Spider Silk

Scientists from Washington University in St. Louis have found a new method to genetically alter bacteria and acquire super-strong spider silk. Farming spiders is incredibly inefficient and finding a way to mass-produce the material would bring us a step away from a ready supply of incredibly resilient fabrics. The method could clear the way for the production of other scarce proteins that could even be used for future space missions.

drinks

Scientists Develop “Fake Alcohol” That Gets You Buzzed But Never Drunk

Inventing a product that allows drinkers to enjoy all the benefits of alcohol and none of its drawbacks was a goal of scientist David Nutt for over a decade. He developed a synthetic alcohol substitute he calls Alcarelle, which could eliminate the downsides of alcohol consumption, from hangovers to alcohol-related cancers and even physical addiction.