Vitamin C plays a key role in leukemia cells, can the weight of boxing gloves really affect the performance and safety of fights and what are the chances you have ADHD?

Vitamin C Depletion Accelerates Leukemia in Mice

(The Scientist, 8/21/2017, Aggie Mika)

In 1970, chemist and two-time Nobel Prize winner Linus Pauling claimed that megadoses of vitamin C cured the common cold. Since then, people have been filling up on orange juice to avoid getting sick but what about being vitamin C deficient? According to a recent study of cell cultures and mice, ascorbate, also known as vitamin C, plays a key role in determining whether blood-forming stem cells will become cancerous. Both human and mouse hematopoietic stem cells are flush with high levels of ascorbate that progressively decrease as the cells develop, the scientists found. Using mice genetically deficient in L-gulonolactone oxidase—the enzyme the animals need to synthesize vitamin C—the team demonstrated that ascorbate suppresses leukemia progression while ascorbate deficiencies can accelerate the cancer’s development.

What is ADHD?

(LabRoots, 8/23/2017, Xuan Pham)

It’s that time of year again! Long live the days of summer vacation. Millions of children are back in school or will be very soon. That brings the topic of attention-deficit hyperactivity disorder (ADHD) back into the spotlight. ADHD is a neurological disorder characterized by inattention, hyperactivity, and/or impulsivity that interferes with normal activities. Untreated, ADHD can slow the progress of learning and development, which can put patients at significant disadvantages later in life. Nevertheless, the precise cause of ADHD is still under investigation, and scientists think a multitude of factors are likely to be involved.

Mayweather and McGregor’s 8-ounce boxing gloves have started a science fight

(Popular Science, 8/24/2017, Stan Horaczek)

Trash talk has been a fundamental part of the run-up to this weekend’s anticipated matchup between undefeated boxer Floyd Mayweather and Mixed Martial Arts champion Conor McGregor. Mayweather turned his attention to the weight of their fight gloves on social media. He proposed the pair battle while wearing gloves that weigh eight ounces each, instead of the usual 10-ouncers required for their weight class. Those two ounces have caused a big stir, especially in a time when the scientific data about brain injuries in sports grows more troubling. The amount of research into the effect glove weight has on fighter performance and safety is surprisingly small, even as the topic of brain injuries in sports has gained momentum in the past decade. It’s still unclear if the lower-weight gloves will benefit either fighter from a competitive standpoint. Guess we will find out on Saturday night!

 

 

 

—Compiled by Social Media Specialist Jillian Scola