Navigation Links
Mislabeled Supplement Spurred Prostate Cancer: Report
Date:1/18/2008

Ingredients might have led to aggressive disease in 2 men taking the product

FRIDAY, Jan. 18 (HealthDay News) -- A mislabeled over-the-counter product described as a dietary supplement appears to have contributed to the development of aggressive prostate cancer in two men, researchers report.

"There were things on the label that were not in the product, and components in the product that were not on the label," said study author Dr. Shahrokh Shariat, chief resident in urology at the University of Texas Southwestern Medical Center.

The men developed rapidly advancing prostate cancer within months of using the dietary supplement, which was advertised as something that would increase stamina and muscle mass, and strengthen the heart, Shariat said. One of the men has died and the other "is in the final stages of the disease and probably will die within months," he said.

The findings were published in the current issue of Clinical Cancer Research.

The report did not name the product or its manufacturer, at the request of the journal editors who were fearful of "possible legal implications," Shariat said. The U.S. Food and Drug Administration, notified of the findings, issued a warning letter to the manufacturer, which led to removal of the product from the market, he said.

An analysis of the product found that it contained both testosterone and estradiol, a sex hormone, he said, and laboratory tests on human prostate cancer cells found it to be a more potent stimulator of cancer cell growth than testosterone alone.

"There are a lot of such products on the market in an unregulated fashion, because androgen supplements are the fastest-growing part of the supplement business," Shariat said. "There are dangerous ones out there, and people should be aware of it."

But Andrew Shao, vice president for scientific and regulatory affairs at the Council for Responsible Nutrition, which represents the supplement industry, said the study "hasn't established any causal link here. The findings are interesting, but don't draw us any closer to any conclusion because of work done in the test tube."

Acknowledging that "any time you put something in your body you want to be cautious about it," Shao maintained that "the overwhelming majority of dietary supplements are well-made and safe, the scientific evidence supports that."

At the same time, people should be aware that "dietary supplements are not drugs and they shouldn't look forever for weight loss or performance benefit or some magic bullet when they take them," he said.

Michael McGuffin, president of the American Herbal Products Association, criticized the decision not to identify the product. "The failure to identify the exact product means that consumers who still have it in their homes are at risk," he said.

It's also a mistake to call the product a dietary supplement, McGuffin said. "I'll tell you what the FDA calls these," he said. "They call them illegal drugs. The fact that someone found one of these should not implicate every herbal product and every vitamin product as somehow being adulterated with drugs or not containing what it should. That's just not true."

Andrew Vickers, a research methodologist in the epidemiology department at Memorial Sloan-Kettering Cancer Center in New York City, called the report "very well-written and very compelling."

Both men in the report originally had low levels of prostate-specific antigen, a signal for prostate cancer "and then suddenly presented with widespread cancer within six months, which is unusual," Vickers said. "Clearly, these are very unusual cases, and there is appropriate concern with this agent."

The substance taken by the men apparently was one of a number of products being advertised as improving male sexual health, Vickers said. "They are presumably very widely used, but we really don't know what they do," he said.

When you do self-diagnosis and self-treatment, you should be cautious in general and should be in contact with your health professional, Shao said.

More information

To learn more about prostate cancer, visit the U.S. National Cancer Institute.



SOURCES: Shahrokh Shariat, M.D., chief resident, urology, University of Texas Southwestern Medical Center, Dallas; Andrew Shao, Ph.D., vice president, scientific and regulatory affairs, Council for Responsible Nutrition, Washington, D.C.; Michael McGuffin, president, American Herbal Products Association, Silver Spring, Md.; Andrew Vickers, Ph.D, research methodologist, Memorial Sloan-Kettering Cancer Center, New York City; Jan. 15, 2008, Clinical Cancer Research


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Antioxidant Supplements May Raise Womens Skin Cancer Risk
2. HHS Announces $75 Million in Supplemental Funding to States for Pandemic Flu Preparedness
3. LifeQuest World Corporation Proud Contributor to Dietary Supplement Education Alliance (DSEA)
4. Vitamin D Supplements May Lengthen Life
5. American Heart Association Surgical Supplement Journal Report: Appropriate Hospital Discharge System Can Prevent Future Cardiac Events
6. U of M study: Health food supplement may curb addiction of pathological gamblers
7. Joint Juice Launches New Ready-to-Drink Glucosamine & Vitamin-Enhanced Dietary Supplement Water Nationwide
8. Wellcorps International Unveils New Nutritional Supplements
9. Almost a Third of U.S. Kids Use Supplements
10. Whites take supplemental breast cancer therapy more often than blacks
11. New All-Natural Dietary Supplement Made from Muscadine Grape Skins Helps Inhibit Growth of Certain Cancers
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Mislabeled Supplement Spurred Prostate Cancer: Report
(Date:5/27/2016)... New York, NY (PRWEB) , ... May 27, ... ... health care world, this installment is bolstered by inspiring human interest stories, courtesy ... to the developing trends and tech within the industry, from leading advocates and ...
(Date:5/27/2016)... , ... May 27, 2016 , ... ... name in the pharmaceutical, medical and food industries. Aside from its GMP accreditation, ... (SIC), providing proof of successfully certified products, services and staff. , Validation Center ...
(Date:5/26/2016)... ... May 26, 2016 , ... W.S. Badger Co. Inc ., the maker ... 2016 When Work Works Award for its use of effective workplace strategies to increase ... Works project administered by the Families and Work Institute (FWI) and the Society for ...
(Date:5/26/2016)... ... May 26, 2016 , ... Georgia State University ... specialty academic programs. , Answering to the increasing demand for curricular specializations, the ... law, and environmental and land use law. ,  , “The demand for lawyers ...
(Date:5/26/2016)... ... May 26, 2016 , ... The Woodlands at John Knox Village , ... of care for living and healing, celebrated its grand opening, today. The Woodlands at ... Home provided by Empowered Staff. , “This is an incredibly fulfilling time for John ...
Breaking Medicine News(10 mins):
(Date:5/24/2016)... Cirujanos holandeses han puesto en marcha una ... compartir sus mejores prácticas por el mundo y tratar ... Europa, África, Asia y Estados ... combina la transmisión en vivo con mensajería instantánea y ... "Imagine un médico de Medicines sans Frontieres ...
(Date:5/24/2016)... HENDERSON, Nev. , May 24, 2016  Diana ... painfully "eats" her organs from the inside out.  This ... her completely dependent on her children and grandchildren to ... of her wheelchair, Diana,s family cannot haul the wheelchair.  ... rides in the car, and Diana is left to ...
(Date:5/24/2016)... May 24, 2016 Celsion Corporation (NASDAQ: ... company, today provided an update on its ongoing ... trial combining GEN-1, the Company,s DNA-based immunotherapy, with ... newly-diagnosed patients with advanced ovarian cancer who will ... GEN-1 is an IL-12 DNA plasmid vector formulated ...
Breaking Medicine Technology: