Showing posts with label Linus Pauling Institute. Show all posts
Showing posts with label Linus Pauling Institute. Show all posts

Monday, May 7, 2012

Scientic Method: Advanced Applied Nutritional Science In House


Scientific Method: Advanced Applied Nutritional Science
By David Baker
this is a "guest post' taken from What's Up Usana?  a series addressing the solid science behind the manufacture of nutritional supplementation at USANA Health Sciences.
Science carries a certain amount of mystique. The lab coat seems the cloak of a secret society operating just out of reach of the layman’s understanding—not quite magic, but certainly not mundane.

Pull back the curtain and you’ll find science is much less clandestine than you might imagine. In fact, USANA’s in-house team of scientists is just working hard trying to produce the best science-based products available.

That’s not to say there aren’t th
ings USANA’s research and development (R&D) team wants to keep under wraps. Some of the information—tucked away in the unremarkable piles of paper around Brian Dixon’s office—might be the next big thing in nutritional science. As USANA’s director of product innovation, it’s Dixon’s job to turn those piles of scientific literature and USANA’s 27 studies into the next game-changing product or upgrade.

Transforming information into effective products isn’t easy, so you’ll have to forgive Dixon and his colleagues for keeping some secrets. Especially when those secrets turn into patented technologies and products.

From Page to Test Tube

What starts in stapled stacks on the desks of USANA’s third floor transforms into something that rattles inside bottles that end up on so many kitchen counters through a process more work than wonder and more moxie than magic.  

It starts in the pages of the scientific literature that make up a roadmap of sorts. They don’t predict the future, but the literature does indicate t
he direction science is heading, knowledge that’s essential to staying on the cutting edge.

With scientists from so many different backgrounds constantly studying diverse areas of the literature, USANA covers a lot of ground. The R&D staff contains a doctor of naturopathy, an expert in sports science, molecular and cellular biologists, nutritional biochemists, pharmacists, nurses, biologists, and chemists. Since all of the members of the R&D team focus on different areas and approach problems from different points of view, they create a huge, robust way of looking at things, which is important.

When the team finds something of interest in the journals, they are able to run with it. Depending on the type of finding, they will either design an in-house study, or consult the experts at research partners like the Linus Pauling Institute (LPI) or The Orthopedic Specialty Hospital (TOSH). Research partners are currently working on 22 of USANA’s studies.

“We yield to the experts whenever we need to, which I think is smart,” Dixon said. “It’s working smarter, not harder.”

A good example of the role USANA’s scientists play in external research is a recent study about bioflavonoids. The R&D team found a paper that suggested bioflavonoids could blunt a spike in blood glucose. They asked a postdoctoral researcher at LPI if the findings had any validity. She looked into it and said the bioflavonoids in USANA’s line theoretically should have the same effects found in the paper.

Knowing LPI had more expertise in the area, USANA had them take the lead on the study. The project found itself in a time crunch, so Dixon and another USANA scientist went to LPI to work side by side at the lab bench with the postdoctoral researcher. Their findings were recently submitted for publication.
 
Although USANA will defer to the experts they partner with, the company’s R&D team contributes its own expertise to external research. “USANA brings speed, efficiency, and passion to any project we’re involved in,” Dixon said. The in-house team also has an experienced, hard-working, well-qualified human clinical research and analytics team, and top-notch facilities available on-site.

“We’re working with a group of physicists and chemists at the University of Utah,” Dixon said. “They don’t have much human clinical experience, so they can develo
p technologies, and we can test them in human beings. We’re combining efforts for the greater good.”

The Basics of Applied Science


Expertise isn’t the only consideration when deciding if a study should be handled in-house. USANA prefers to do applied research—applying basic research done by institutions to humans, and using it to develop or improve products.

“We’ll do basic research when we think it could pretty quickly do
vetail into applied,” Dixon said. “But we like working as closely with the human, with our customers, as possible.”

Basic research isn’t always so basic. It explores the mechanisms of a phenomenon, and establishes the scientific understanding needed to apply groundbreaking research to the human condition. So USANA’s research partners are out looking for next greatest thing in nutritional science, and in-house experts leverage that basic research and apply those cutting-edge techniques and technologies directly to human health.

Translational research is the term Dixon uses. And there’s plenty of it going on in-house at USANA. There are currently five human clinical studies in different stages that Dixon said should be finished this year—an impressive number, to be sure.

The first study is an effort to find a medical device that can quickly show USANA’s products are yielding real health benefits. From research they’ve done, the R&D team knows antioxidant status is increased after taking the USANA® Essentials™, but that increased status doesn’t feel or look like anything. The study, which is in the process of data analysis, looked at five different medical devices to assess their ability to measure biomarkers that can show the health benefit of taking USANA products.

Another study examines whether the phytosome technology used to raise the bioavailability of the turmeric extract in USANA’s upgraded Procosa® can be used with other core ingredients. Phytosome technology uses healthy fats to encase nutrients to protect them through digestion and deliver them more effectively to the cells. They are currently investigating if this can help different nutrients and antioxidants get into the blood and the cell, increasing their effectiveness.*

USANA was one of the first supplement companies to put advanced doses of vitamin D in its core products. “We didn’t stop there,” Dixon said. “USANA being USANA, we wanted to actually prove that our customers were experiencing a real benefit. So what we did is conduct a study.”

Actually, two studies. Both are about vitamin D status in USANA product users, and are currently being written up. The R&D team, with the help of Associates, found almost 1,000 people, half who used USANA products, and half who didn’t. One study measured the vitamin D status of participants at the end of winter, when levels should be at their lowest. The other measured levels at the end of summer, when participants should have the most vitamin D.

The winter study found that those taking USANA products, on average, had a 47-percent higher vitamin D level than those who were
not taking USANA products. The summer study yielded almost the exact same results, which is odd because a person’s body can typically make tens of thousands of International Units (IU) of vitamin D in about 20 minutes of moderate sun exposure. But contribution from the sun only equated to study participants taking a supplement with 300 IUs, which results in a negligible amount of vitamin D in the blood.

Dixon and the team attributed the results to a modern lifestyle that doesn’t allow for enough sun exposure during peak times between 10 a.m. and 3 p.m. This is especially true for people who live above 37 degrees north latitude or below 37 degrees south latitude—where the tilt of the earth causes much of the essential UVB radiation from the sun to be filtered out by the planet’s atmosphere.

The data suggests people shouldn’t just be worried about vitamin D status in the winter, Dixon said. To achieve optimal levels, they should be supplementing with vitamin D all year.

The final in-house study is shrouded in some mystery. It involves a possible discovery that could impact USANA’s products and their effectiveness. All Dixon would say was that it’s a technology that could keep antioxidant levels in the blood
higher for a longer period of time, providing more protection against oxidative stress. After further study, USANA is hoping to file patents.

Publications and Products

The conclusion of a study doesn’t mean the end of the work. Researchers write papers for presentation at scientific conferences or to submit for publication in scientific journals—just like their peers at major research institutions. The peer-review process the research goes through means studies are evaluated by experts, who check the papers’ scientific validity.

“We’re still held to the same standards of scientific excellence that any university or research institution is,” Dixon said.

Including papers that come out of research collaborations, Dixon said USANA scientists have about 10 papers published a year. Publications are a good metric for evaluating researchers, and almost one a month is an output even larger labs would love to have.

Getting journal articles published raise the credibility of USANA’s research, but the ultimate goal for any study is to make better, more effective products. It’s long, less-than-magical work taking science and turning it into something to keep the USANA family—and the world—as healthy as possible. But it’s totally worth it.

“Simply put, Associates get the best science-based health products in the world,” Dixon said.

Go back and read all the Scientific Method articles, and learn about all the research going on at USANA and its partner institutions.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.




“We’re still held to the same standards of scientific excellence that any university or research institution is.” — Brian Dixon, Ph.D., USANA director of product innovation

Friday, April 27, 2012

The Scientific Method: Legacy and Discovery at Linus Pauling Institute

Scientific Method: Legacy and Discovery are Alive at LPI
By David Baker

(This is part 2 of a series on the scientific research behind Usana Health Sciences and their partnership with LPI)

Inside the lab of a nearly new building. Inside a petri dish and the clear, seemingly non-descript liquid dripped from so many pipettes. Inside the cells composing various in vitro experiments and the DNA that builds life itself. Zoom in close enough on the Linus Pauling Institute, and you can see the mechanics of scientific discovery.

It’s for the discoveries that the new building, the new lab, the petri dishes, the pipettes, and the unquantifiable collection of scientific passion, knowledge, and energy exist. At the Linus Pauling Institute (LPI), it’s all dedicated to discovery—the game-changing kind that helps people live longer, healthier lives.

Observation

The researchers working on the campus of Oregon State University (OSU) in Corvallis are following in the footsteps of the scientific pioneer that lends his name to the institute. Linus Pauling, Ph.D., is the only person to win two unshared Nobel Prizes—Chemistry in 1954 and Peace in 1962. From a 13-year-old chemist in his mother’s basement, Pauling grew into one of the most important scientific figures of the 20th century, breaking ground in the nature of the chemical bond, and micronutrient research—especially the importance of vitamin C.

In 1973, Pauling co-founded what eventually became LPI. Basing their research on the idea that a balanced and nutritious diet is the key to optimal health, LPI scientists focus on how vitamins, minerals, and phytochemicals (chemicals from plants) play a role in human health. Nearly 30 years later, Pauling’s belief that micronutrients are important is still central, uniting the work of the researchers who carry on his legacy.

“I always have to laugh when MDs say, ‘We don’t need this vitamin!’” said Balz Frei, Ph.D., director and endowed chair of LPI and OSU distinguished professor of biochemistry and biophysics. “Wait a minute. Vitamin? ‘Vita’ is Latin for life. These things are essential nutrients. We need them. Without them, you die or suffer from serious disease.”

Driven by the mission to promote optimal health through micronutrient research, the institute has grown in acclaim, becoming one of the first two Centers of Excellence for Research on Complementary and Alternative Medicine designated by the National Center for Complementary and Alternative Medicine of the National Institutes of Health (NIH).

Hypothesis

It’s this mix of mission and excellence that brought USANA and LPI together in 2007, when a 10-year partnership was announced to facilitate the exploration of key nutrients to help people live healthy and productive lives.

“We have very similar interests and very similar mission statements,” Frei said. “Our focus is on health span, not so much life span. Of course, if you eat right and you exercise and you take the right dietary supplements you hopefully live longer, but you also live better…USANA is focusing on health span, too—trying to help people stay healthy up to an old age and help them be productive, and not just free of disease, but also vital and energetic. This makes perfect sense, then, for the LPI to partner with USANA.”

The partnership comes to life in the financial support USANA provides for projects at the institute—scientific- and outreach-related—and intellectual collaboration on mutually beneficial research. It’s a win-win, with LPI getting support for projects that are tough to fund through traditional channels, and USANA staying connected to pioneering research and the advancement of nutritional science.

Experiment

The work most closely associated with Pauling’s is coming out of the Frei lab. Building on a seminal paper he wrote called “Vitamin C is an Outstanding Antioxidant in Human Blood Plasma,” which has been cited over 1,200 times, Frei has continued his vitamin C work, but also explores other compounds and their role in slowing the progression of atherosclerosis—the hardening of arteries caused by plaque build up.

Frei’s research examines the interaction between vitamin C and lipoic acid. Along with fellow LPI researcher, Tory Hagen, Ph.D., Frei is looking at the anti-inflammatory properties of these compounds. Two ongoing clinical trials at Oregon Health and Science University (OHSU) are looking at the effects of lipoic acid supplementation in overweight subjects and heart disease patients.

The interaction of flavonoids with digestive enzymes is also of interest to the Frei lab. In vitro studies have shown certain flavonoids and extracts, like grape-seed and green tea extract, can inhibit digestive enzymes, slowing starch breakdown into glucose, which lowers the body’s response to this high-glycemic food. They are working to take this from the lab to humans—the goal of all the research at LPI.

Of course, Frei isn’t the only scientist at LPI immersed in interesting research. Visit the office of Emily Ho, Ph. D., and it’s easy to guess one of her lab’s interests. It’s green, stuffed, and sitting in a chair next to her desk.








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Broccoli—specifically the sulforaphane found in broccoli sprouts—is one of the two areas Ho’s lab is researching. The LPI principal investigator and associate professor of public health and human sciences also works on zinc projects. Prostate cancer prevention is the thread tying her research together, but she also looks at inflammatory response and immune function, as well.

“You can’t always get a prostate from people, so we study other things, as well,” Ho said with a laugh.

Ho and her collaborators recently ran a controlled feeding study looking at zinc and DNA damage. They found DNA damage increased through the depletion period of the study, and after four weeks receiving adequate zinc—through diet and supplements—subjects’ DNA damage levels returned to normal. There isn’t a good biomarker for zinc status, so one of Ho’s missions is to find a measure that indicates deficiency in this important antioxidant.

Ho has also worked with an LPI colleague to identify a new mechanism for sulforaphane. Now they are running two clinical trials at OHSU in breast cancer patients and men with high risk of prostate cancer. Ho is using epigenetic biomarkers—reversible changes to the genome that occur outside the DNA and alter the way cells behave—to test the impact of sulforaphane.

Each LPI researcher is different. Adrian “Fritz” Gombart, Ph.D., doesn’t have any stuffed effigies in his office, and the LPI principal investigator and associate professor of biochemistry and biophysics prefers to focus on the role vitamin D plays in the innate immune response—the system that signals the presence of a pathogen and prevents it from gaining a foothold in the body.

The research Gombart is doing provides a better understanding of vitamin D’s role in immune function, and could shed light on its ability to regulate an antimicrobial peptide gene called cathelicidin in different immune cells, as well as the response to different infectious diseases. Soon, he is hoping to do human clinical studies examining whether higher vitamin D status leads to higher cathelicidin levels in a large population of healthy people.

Results

Around LPI, Fred Stevens, Ph.D., comes up a lot. The LPI principal investigator and associate professor of medicinal chemistry is working with cutting-edge techniques that could speed up the normally slow process of scientific advancement.

These techniques present a different way of approaching problems and allow for scientific connections to be made more quickly. In a recent study, Stevens and his collaborators used the techniques to make an interesting discovery about vitamin C deficiency. The results suggest vitamin C is critical for maintenance of cellular energy metabolism, and could explain why vitamin C insufficiency causes fatigue.

Another LPI principal investigator, Gerd Bobe, Ph.D., is using Stevens’ techniques to explore the health benefits of various foods. Bobe, an assistant professor in animal sciences, said these techniques give us a better idea of what a drug, supplement, or diet does to a specific person, allowing for more personalized treatments and preventions.

Conclusion







“We have very similar interests and very similar mission statements…This makes perfect sense, then, for the LPI to partner with USANA.” 
— Balz Frei, Ph.D., director and endowed chair of LPI and OSU distinguished professor of biochemistry and biophysics










Bobe is also lending his statistics skills to the Healthy Youth Program. This outreach effort is tackling the issues of nutrition and physical education in schools. Since its inception in 2009, the reach of the Healthy Youth Program has grown substantially. It started with a fitness and nutrition study in elementary school children and an assessment of their micronutrient intake. Now, the program runs cooking classes for children and partners with Corvallis High School to develop a garden maintained by students.

The number of Healthy Youth Program employees has grown from one to five, and the impact of the program continues to expand exponentially. USANA has given $250,000 to support the Healthy Youth Program in its efforts to provide education and activity programs for kids and their families.

Through collaboration on cutting-edge research and support for programs providing nutrition education and activities for kids, USANA has found a kindred spirit in LPI. In the future, this partnership will continue to help people find optimal health and live longer, more productive lives.

In the coming weeks, look for more Scientific Method stories with additional in-depth information on USANA’s research partnerships. Next week’s story focuses on the research and relationship between USANA and TOSH.

Visiting Linus Pauling Institute