PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Stimulant marketed as 'natural' in sports supplement actually of synthetic origin

2012-07-13
(Press-News.org) A new study published in the journal Drug Testing and Analysis found that DMAA, a stimulant often found in many nutritional and sports supplements, does not originate from natural substances and is actually comprised of synthetic compounds.

The substance DMAA (1,3-dimethylamylamine) is a stimulant existing in various pre-workout supplements and often labeled as part of geranium plants. The safety and origin of DMAA in these supplements is often the subject of intense debate and has been recently linked to the death of two U.S. soldiers, causing the Army to pull the supplement from its commissaries.

Researchers led by Daniel W. Armstrong, Ph.D., of the University of Texas at Arlington, set out to determine the unique isomeric ratios of synthetic substances (DMAA) and natural substances which are distinctly different and therefore can be used to distinguish between the two. Eight different geranium extracts of different geographical origins were examined for the presence of DMAA. No DMAA was found in any of the geranium extracts.

Results showed that the DMAA actually consists of 4 different compounds called stereoisomers and that the unique isomeric ratios in synthetic DMAA were the same as those found for the DMAA in all supplements. Thus, the DMAA in supplements could not have originated from the geranium plant.

"The FDA should regulate and/or ban products in which significant amounts of synthetic pharmacological compounds are added," Armstrong opined. "Also, this information should be clearly labeled – including their effects and possible side effects – so that consumers can make an informed choice.

### END



ELSE PRESS RELEASES FROM THIS DATE:

Caterpillar gets more from its food when predator is on the prowl

2012-07-13
WEST LAFAYETTE, Ind. - Animals that choose to eat in the presence of a predator run the risk of being eaten themselves, so they often go into a defensive mode and pay a physical penalty for the lack of nutrients. But that's not so for the crop pest hornworm caterpillar, a study shows. While other animals increase metabolism and stop growing or developing during a defensive period, hornworm caterpillars slow or stop eating but actually keep up their weight and develop a little faster in the short term. Ian Kaplan, a Purdue University assistant professor of entomology; ...

Disentangling information from photons

2012-07-13
Theoretical physicist Filippo Miatto and colleagues from the University of Strathclyde, Glasgow, UK, have found a new method of reliably assessing the information contained in photon pairs used for applications in cryptography and quantum computing. The findings, published in EPJ D¹, are so robust that they enable access to the information even when the measurements on photon pairs are imperfect. The authors focused on photon pairs described as being in a state of quantum entanglement: i.e., made up of many superimposed pairs of states. This means that these photon pairs ...

Study questions whether becoming a doctor pays off for women

2012-07-13
Women who go to medical school just for the financial rewards of being a doctor could be making a mistake, according to a study published in the Journal of Human Capital. The research found that after factoring in the high upfront costs of becoming a doctor, most women primary-care doctors would have made more money over their careers becoming physician assistants instead. For the median man on the other hand, becoming a doctor pays a substantial premium over becoming a PA. Two factors drive the results, say the study's authors, M. Keith Chen and Judith Chevalier ...

Finished heart switches stem cells off

2012-07-13
This press release is available in German. It is not unusual for babies to be born with congenital heart defects. This is because the development of the heart in the embryo is a process which is not only extremely complex, but also error-prone. Scientists from the Max Planck Institute for Heart and Lung Research in Bad Nauheim have now identified a key molecule that plays a central role in regulating the function of stem cells in the heart. As a result, not only could congenital heart defects be avoided in future, but new ways of stimulating the regeneration of damaged ...

Tamarisk biocontrol efforts get evolutionary boost

2012-07-13
(Santa Barbara, Calif.) –– UC Santa Barbara scientists trying to control the invasive tamarisk plant have been getting a boost from evolution, in the form of a rapidly evolving beetle that has been changing its life cycle to more efficiently consume the noxious weed. Their findings, in a paper titled "Evolution of critical day length for diapause induction enables range expansion of Diorhabda carinulata, a biological control agent against tamarisk," are published in the journal Evolutionary Applications. "This is one of the clearest cases of rapid evolution," said co-author ...

Plasmonic chains act like polymers

2012-07-13
HOUSTON – (July 12, 2012) – New research at Rice University that seeks to establish points of reference between plasmonic particles and polymers might lead to smaller computer chips, better antennae and improvements in optical computing. Materials scientists take advantage of strong interactions between chemicals to form polymers that self-assemble into patterns and are the basis of things people use every day. Anything made of plastic is a good example. Now, Rice scientists have detailed similar patterns in the way that surface plasmons – charged "quasiparticles" ...

Study: Wolverines need refrigerators

2012-07-13
Wolverines live in harsh conditions; they range over large areas of cold mountainous low-productivity habitat with persistent snow. The paper suggests wolverines take advantage of the crevices and boulders of the mountainous terrain, as well as the snow cover to cache and "refrigerate" food sources such as elk, caribou, moose and mountain goat carrion, ground squirrels and other food collected during more plentiful times of year. These cold, structured chambers provide protection of the food supply from scavengers, insects and bacteria. In addition, the refrigerated caches ...

Sports 1, housework, 0

2012-07-13
Pressure to be more involved in their children's lives has many middle class men turning to sports as a way to nurture their kids. This softening of gender roles might be seen on the field, but researchers found it doesn't change traditional behavior at home – where household chores and other parenting responsibilities are still seen as mom's job. "Women may be unhappy about this inequality, but at the same time they value the fact that their partners are involved with the kids -- even if it is mostly manifested on the soccer field," says Dr. Tamar Kremer-Sadlik, director ...

Satellite sees remnants of former Tropical Storm Daniel

2012-07-13
Daniel is no longer a tropical storm, and has weakened to a remnant low pressure system, but its circulation is still visible on satellite imagery today, July 12 as it moves south of Hawaii. A visible image from NOAA's GOES-15 satellite on July 12, 2012 shows the circulation of Daniel's remnants heading toward Hawaii, followed by Hurricane Emilia to the east, and further east is Tropical Storm Fabio. Daniel's remnants appear as a ghost-like swirl of clouds in comparison to the organized and bright white clouds in powerful Hurricane Emilia. The image was created by the ...

NASA sees hot towers as Tropical Storm Fabio's trigger

2012-07-13
NASA research has indicated whenever "Hot Towering" thunderstorms are spotted within a tropical cyclone, it is more likely to strengthen. NASA's TRMM satellite saw hot towers within newborn Tropical Depression 06E when it passed overhead early on July 12 and it later became Tropical Storm Fabio. Tropical Depression 06E (TD06E) was seen by the TRMM satellite on July 12, 2012 at 0632 UTC (2:32 a.m. EDT). TD06E had mostly light to moderate rainfall where rain was falling between 20 and 40 millimeters (.78 to 1.57 inches) per hour. However, some heavy rainfall (red) and hot ...

LAST 30 PRESS RELEASES:

UMass Amherst chemists develop unique tool for studying RNA

Disappointment alters brain chemistry and behavior

A built-in odometer: new study reveals how the brain measures distance

Stress-related brain signals drive risk of cardiovascular disease in people with depression and anxiety

New details on role of fat transport molecules in Alzheimer’s onset

Study illuminates how an antiviral defense mechanism may lead to Alzheimer’s disease

Spot the males: New gene-editing method could transform mosquito control

AI learns to build simple equations for complex systems

NAU team releases 13 years of detailed U.S. CO2 emissions data

Unveiling how sodium-ion batteries can charge faster than lithium-ion ones

How do childcare tax credits affect children’s long-term health?

Can an electronic nose detect indoor mold?

Do natural disasters have long-term impacts on mortality in older adults?

Modification improves sodium‐ion batteries as an alternative to lithium-ion batteries

Parasports provide a range of benefits for people with cerebral palsy

How does grandparental care affect children’s health?

Why are there so many Nordic mediators?

Young shark species more vulnerable to extinction

Mobile fetal heart monitoring linked to fewer newborn deaths in Tanzania

Bluey’s dad offered professorial chair in archaeology at Griffith University

Beyond small data limitations: Transfer learning-enabled framework for predicting mechanical properties of aluminum matrix composites

Unveiling non-thermal catalytic origin of direct current-promoted catalysis for energy-efficient transformation of greenhouse gases to valuable chemicals

Chronic breathlessness emerging as a hidden strain on hospitals

Paleontologists find first fossil bee nests made inside fossil bones

These fossils were the perfect home for ancient baby bees

Not everyone reads the room the same. A new study examines why.

New research identifies linked energy, immune and vascular changes in ME/CFS

Concurrent frailty + depression likely boost dementia risk in older people

Living in substandard housing linked to kids’ missed schooling and poor grades

Little awareness of medical + psychological complexities of steroid cream withdrawal

[Press-News.org] Stimulant marketed as 'natural' in sports supplement actually of synthetic origin