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

A blend of soy and dairy proteins promotes muscle protein synthesis when consumed after exercise

A blend of proteins supplies amino acids to muscles and extends growth and repair

2013-01-25
(Press-News.org) ST. LOUIS, Jan. 24, 2013 – A new study published in The Journal of Nutrition demonstrates the benefits of consuming a protein blend for muscle protein synthesis after exercise. This study is a first-of-its-kind, conducted by researchers at the University of Texas Medical Branch, and utilizes the proteins from soy, whey and casein consumed after an acute bout of resistance exercise. These proteins have complementary amino acid profiles and different digestion rates (amino acid release profiles). The results demonstrate prolonged delivery of amino acids to muscles and extended muscle protein synthesis when subjects consumed the blend, compared to a single source of protein alone.

"Sources of high-quality protein contain all the essential amino acids and have individual characteristics thought to offer a unique advantage for muscle growth," said Blake Rasmussen, Ph.D., interim chair, Department of Nutrition & Metabolism and principal investigator of the study. "This is the first study to test the effects of combining soy with the dairy proteins, whey and casein, for promotion of lean body mass gain."

The composition of the blend used in the current study was based on results from a recently published pre-clinical study that demonstrated enhanced postprandial skeletal muscle protein synthesis in rats compared to another blend of soy or whey protein sources alone. This human clinical study for the first time shows that a soy-dairy protein blend (25 percent SUPRO® isolated soy protein, 25 percent whey protein isolate and 50 percent caseinate) is capable of stimulating muscle growth to a similar extent as whey protein through an elevation in muscle protein synthesis and muscle cell growth signaling. In addition, the blend extended the anabolic window (i.e., prolonged increase in the rate of muscle protein synthesis from rest) for a longer amount of time than whey alone.

The beverages provided approximately 20 grams of protein from either the soy-dairy blend or whey protein and contained similar amounts of leucine, a key amino acid involved in muscle cell signaling pathways that regulate muscle protein synthesis rates. The beverages were consumed following high-intensity leg resistance exercise. Multiple leg muscle samples were collected from each subject to determine changes in muscle protein synthesis over time (at rest and 3 and 5 hours after exercise). Nineteen healthy, young adults participated in the randomized, double blind trial.

"Previous research examines only single sources of proteins and does not match the protein sources for leucine content, a branched chain amino acid with anabolic effects, thought to trigger muscle protein synthesis. Results from our study with matched leucine indicate the soy-dairy protein blend stimulated muscle synthesis during the early recovery period as well as into the later post-exercise period, compared to the single protein treatment, whey, which only increased muscle synthesis from rest into the early recovery period," said Paul Reidy, lead investigator on the study.

Proteins from milk (casein and whey), soy, beef and egg are effective in stimulating post-exercise muscle protein synthesis. This study demonstrates that consumption of a beverage made with a soy-dairy protein blend following exercise is capable of prolonging amino acid delivery to muscles, muscle cell signaling and protein synthesis in human skeletal muscle. This extension of the anabolic window may also be important for the aging muscle.

"No research on blends of proteins from different sources and their effects on muscle protein synthesis has been done, to-date. Muscle health is of great concern to not only young and active individuals like the ones in this study but also to the aging population. The role of protein for muscle health is a key area of interest for our company, " said Ratna Mukherjea, Ph.D., Nutrition Science team lead at Solae/DuPont Nutrition & Health. "This publication expands on results indicating the beneficial effects of consuming blends shared at numerous scientific meetings in 2012."

###

For more information on the study, the following is a link to the study on the Journal of Nutrition site. http://jn.nutrition.org/content/early/recent

Solae™ soy-based ingredient solutions help create nutritious, great-tasting products with a unique combination of functional, nutritional, economical and sustainable benefits. Solae, LLC, originally a DuPont joint venture, was fully acquired by DuPont on May 1, 2012, and is now part of DuPont Nutrition & Health, a world leader in specialty food ingredients. For more information, visit www.Solae.com, or follow us on Twitter at www.Twitter.com/SolaeLLC, Facebook at www.Facebook.com/SolaeLLC, and LinkedIn at www.linkedin.com/company/Solae-LLC.

DuPont Nutrition & Health addresses the world's challenges in food by offering a wide range of sustainable, bio-based ingredients and advanced microbial diagnostic solutions to provide safer, healthier and more nutritious food. Through close collaboration with customers, DuPont combines knowledge and experience with a passion for innovation to deliver unparalleled customer value to the marketplace.

DuPont (NYSE: DD) has been bringing world-class science and engineering to the global marketplace in the form of innovative products, materials, and services since 1802. The company believes that by collaborating with customers, governments, NGOs, and thought leaders we can help find solutions to such global challenges as providing enough healthy food for people everywhere, decreasing dependence on fossil fuels, and protecting life and the environment. For additional information about DuPont and its commitment to inclusive innovation, please visit www.dupont.com.

END



ELSE PRESS RELEASES FROM THIS DATE:

Genes provide clues to gender disparity in human hearts

2013-01-25
Healthy men and women show little difference in their hearts, except for small electrocardiographic disparities. But new genetic differences found by Washington University in St. Louis researchers in hearts with disease could ultimately lead to personalized treatment of various heart ailments. Generally, men are more susceptible to developing atrial fibrillation, an irregular, rapid heartbeat that may lead to stroke, while women are more likely to develop long-QT syndrome, a rhythm disorder that can cause rapid heartbeats and sudden cardiac death. While prior studies ...

Chance finding reveals new control on blood vessels in developing brain

2013-01-25
MADISON – Zhen Huang freely admits he was not interested in blood vessels four years ago when he was studying brain development in a fetal mouse. Instead, he wanted to see how changing a particular gene in brain cells called glia would affect the growth of neurons. The result was hemorrhage, caused by deteriorating veins and arteries, and it begged for explanation. "It was a surprising finding," says Huang, an assistant professor of neuroscience and neurology at the University of Wisconsin-Madison. "I was mainly interested in the neurological aspect, how the brain ...

Fast, low-cost device uses the cloud to speed up diagnostic testing for HIV and more

Fast, low-cost device uses the cloud to speed up diagnostic testing for HIV and more
2013-01-25
New York, NY—January 24, 2013—Samuel K. Sia, associate professor of biomedical engineering at Columbia Engineering, has taken his innovative lab-on-a-chip and developed a way to not only check a patient's HIV status anywhere in the world with just a finger prick, but also synchronize the results automatically and instantaneously with central health-care records—10 times faster, the researchers say, than the benchtop ELISA, a broadly used diagnostic technique. The device was field-tested in Rwanda by a collaborative team from the Sia lab and ICAP at Columbia's Mailman School ...

Ractopamine is safe for use in Brazilian pork

2013-01-25
Animal scientists in Brazil have found that a small dose of the feed additive ractopamine can boost pork production without changing how pork looks or tastes. In the latest issue of the Journal of Animal Science, researchers report that a 5 mg/kg dose of ractopamine increased muscle mass and feed efficiency, and had no noticeable effect on pork marbling, fat content, toughness or color. The researchers came to this conclusion by testing pork from 340 pigs raised under commercial conditions. "We found that if [pork producers] use 5 mg/kg of ractopamine in the finishing ...

Researchers say it's time to treat anemia seriously

2013-01-25
TORONTO, Jan. 24, 2013—Up to one-third of patients undergoing surgery in Ontario have a treatable form of anemia but are not optimally treated for it. A paper published online today in the Canadian Journal of Anesthesia says that hospitals that do treat patients with anemia have better outcomes, including fewer blood transfusions and infections and shorter hospital stays. A common option for management of anemia has been blood transfusion. But blood transfusions are expensive and are associated with higher death and complication rates. Dr. Gregory Hare, an anesthesiologist ...

Digital diagnostic tools lead to patient dissatisfaction, says MU expert

2013-01-25
COLUMBIA, Mo. – Health care practitioners now can access patients' data using electronic medical records, which often include information systems that assess individuals' medical histories and clinical research to facilitate doctors' diagnoses. A University of Missouri researcher says the increased use of computerized clinical decision support systems (CDSSs) leads to greater patient dissatisfaction and could increase noncompliance with preventative care and treatment recommendations. Victoria Shaffer, an assistant professor of health sciences and psychological sciences, ...

Liquid metal makes silicon crystals at record low temperatures

2013-01-25
ANN ARBOR—A new way of making crystalline silicon, developed by U-M researchers, could make this crucial ingredient of computers and solar cells much cheaper and greener. Silicon dioxide, or sand, makes up about 40 percent of the earth's crust, but the industrial method for converting sand into crystalline silicon is expensive and has a major environmental impact due to the extreme processing conditions. "The crystalline silicon in modern electronics is currently made through a series of energy-intensive chemical reactions with temperatures in excess of 2,000 degrees ...

Stigma stymies prostate cancer screening, treatment in Ghana

Stigma stymies prostate cancer screening, treatment in Ghana
2013-01-25
PHILADELPHIA—Infectious diseases in Ghana tend to capture the most attention, but a quiet crisis may soon take over as the country's most threatening epidemic: cancer. A new study published in January in the journal BMC Cancer, led by Kosj Yamoah, M.D., Ph.D., a resident in the Department of Radiation Oncology at Thomas Jefferson University and Hospital, takes aim at the issue by investigating prostate cancer diagnoses and treatment delivery in black men living in the West African region, in order to devise research strategies to help improve health outcomes. Overall, ...

Study: Store layout an important variable for retailers

Study: Store layout an important variable for retailers
2013-01-25
CHAMPAIGN, Ill. — A retailer's optimal store layout is the result of balancing the interests of two different types of markets – consumers and suppliers, says new research co-written by a University of Illinois business professor. According to Yunchuan "Frank" Liu, a retailer's strategic manipulation of store layout is driven by an incentive to balance the shopping process of "fit-uncertain consumers" and the pricing behavior of upstream suppliers. "Retailers face two different kinds of markets – the consumers who buy goods, and the manufacturers that supply goods," ...

NASA sees Tropical Cyclone Garry continue to intensify

NASA sees Tropical Cyclone Garry continue to intensify
2013-01-25
Tropical Cyclone Garry is in a good environment to intensify and satellite imagery from NOAA's GOES-15 satellite helped confirm that the storm has become more organized. NOAA's GOES-15 satellite captured an infrared image of Tropical Storm Garry when it was located about 330 nautical miles (379.8 miles/ 611.2 km) east of Pago Pago, American Samoa. The image, created by the NASA GOES Project at the NASA Goddard Space Flight Center in Greenbelt, Md., was taken Jan. 24 at 1500 UTC (10 a.m. EST). The image showed a bright white circle of clouds that indicate strong thunderstorms ...

LAST 30 PRESS RELEASES:

Twelve questions to ask your doctor for better brain health in the new year

Microelectronics Science Research Centers to lead charge on next-generation designs and prototypes

Study identifies genetic cause for yellow nail syndrome

New drug to prevent migraine may start working right away

Good news for people with MS: COVID-19 infection not tied to worsening symptoms

Department of Energy announces $179 million for Microelectronics Science Research Centers

Human-related activities continue to threaten global climate and productivity

Public shows greater acceptance of RSV vaccine as vaccine hesitancy appears to have plateaued

Unraveling the power and influence of language

Gene editing tool reduces Alzheimer’s plaque precursor in mice

TNF inhibitors prevent complications in kids with Crohn's disease, recommended as first-line therapies

Twisted Edison: Bright, elliptically polarized incandescent light

Structural cell protein also directly regulates gene transcription

Breaking boundaries: Researchers isolate quantum coherence in classical light systems

Brain map clarifies neuronal connectivity behind motor function

Researchers find compromised indoor air in homes following Marshall Fire

Months after Colorado's Marshall Fire, residents of surviving homes reported health symptoms, poor air quality

Identification of chemical constituents and blood-absorbed components of Shenqi Fuzheng extract based on UPLC-triple-TOF/MS technology

'Glass fences' hinder Japanese female faculty in international research, study finds

Vector winds forecast by numerical weather prediction models still in need of optimization

New research identifies key cellular mechanism driving Alzheimer’s disease

Trends in buprenorphine dispensing among adolescents and young adults in the US

Emergency department physicians vary widely in their likelihood of hospitalizing a patient, even within the same facility

Firearm and motor vehicle pediatric deaths— intersections of age, sex, race, and ethnicity

Association of state cannabis legalization with cannabis use disorder and cannabis poisoning

Gestational hypertension, preeclampsia, and eclampsia and future neurological disorders

Adoption of “hospital-at-home” programs remains concentrated among larger, urban, not-for-profit and academic hospitals

Unlocking the mysteries of the human gut

High-quality nanodiamonds for bioimaging and quantum sensing applications

New clinical practice guideline on the process for diagnosing Alzheimer’s disease or a related form of cognitive impairment or dementia

[Press-News.org] A blend of soy and dairy proteins promotes muscle protein synthesis when consumed after exercise
A blend of proteins supplies amino acids to muscles and extends growth and repair