HOME >> BIOLOGY >> NEWS
MIT team explains yin-yang of ginseng

CAMBRIDGE, Mass.--In work that emphasizes the need for stronger regulations of herbal drugs, an international team of MIT scientists and colleagues has unraveled the yin and the yang of ginseng, or why the popular alternative medicine can have two entirely different, opposing effects on the body.

Conflicting scientific articles report that ginseng can both promote the growth of blood vessels (key to wound healing) and stymie that process. The latter is important because preventing the formation of blood vessels can be enlisted against cancer. Tumors are fed by blood vessels; cutting off their supply can kill them.

In the Sept. 7, 2004 issue of Circulation: the Journal of the American Heart Association, the researchers from the United States, England, the Netherlands and Hong Kong explain these dual effects for the first time.

Chemical fingerprints of four different varieties of ginseng--American, Chinese, Korean and Sanqi--show that each has different proportions of two key ingredients. Additional studies showed that a preponderance of one ingredient has positive effects on the growth of blood vessels; more of the other component tips the scale the other way.

"We found that this composition really matters for the ultimate outcome," said Shiladitya Sengupta, a postdoctoral associate in MIT's Biological Engineering Division.

Further, the team found that the way ginseng extracts are processed can also alter the compositional ratio. "This is a very clear-cut example of why we need regulations standardizing herbal therapies through compositional analysis," said Professor Ram Sasisekharan of MIT's Biological Engineering Division. With the new results, "we can now rationally isolate the components to focus on a specific effect, such as promoting blood-vessel formation."

In the United States, herbal medicines are currently regulated under the 1994 Dietary Supplement and Health Education Act, which does not require standar
'"/>

Contact: Elizabeth Thomson
thomson@mit.edu
617-258-5402
Massachusetts Institute of Technology
30-Aug-2004


Page: 1 2

Related biology news :

1. Study explains spatial orientation differences between sexes
2. New model explains why costly insect outbreaks hard to predict
3. New book explains plants, medicine
4. Neural biology explains ejaculation
5. As harmful as osteoporosis but less well known - New research better explains sarcopenia
6. New study suggests missing link that explains how dinosaurs learned to fly
7. Newly-discovered role for Nf1 gene explains heart abnormalities associated with neurofibromatosis
8. New theory explains economic growth in terms of evolutionary biology
9. Laboratory study explains clinical promise of anti-angiogenesis cancer drug
10. SFVAMC study explains prostate cancer resistance to hormone therapy
11. Science study explains the sexy glow of parrot plumage

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/3/2020)... ... 2020 , ... Accumen Inc. is helping healthcare get better, ... Solutions, to provide COVID-19 saliva testing kits nationally. , “Accumen has been ... 10 years. Early in the COVID-19 crisis, we identified supply chain gaps and ...
(Date:7/18/2020)... ... ... Commercial launch readiness is a critical stage in a product life cycle. While ... global economic downturn will only increase price pressures overall for the industry. The era ... from every product launch is critical. However, history shows that only a third of ...
(Date:7/2/2020)... ... July 02, 2020 , ... ... announced a publication detailing the use of its revolutionary NEXTGENPCR endpoint thermocycler ... (RT-PCR) in 16 minutes. The article, titled "Ultra-fast one-step RT-PCR protocol for ...
Breaking Biology News(10 mins):
(Date:7/18/2020)... ... July 16, 2020 , ... After research model surgery and catheter implantation, the ... is only the beginning of a successful study, while protecting and accessing the catheter ... Global Head of Surgery from Envigo in a live webinar ...
(Date:7/10/2020)... ... July 09, 2020 , ... PathSensors Inc., ... has expanded the company’s exclusive license to include clinical applications for CANARY™ ... market, focusing initially on the SARS-CoV-2 biosensor. CANARY’s™ fast and highly ...
(Date:7/1/2020)... ... 29, 2020 , ... MedShift , a leading medical ... many obstacles created as a result of COVID-19. As a provider at the ... practices and medical manufacturers by expanding access to device offerings, technology services, and ...
(Date:6/28/2020)... HILL, Conn. (PRWEB) , ... June 25, 2020 ... ... company formed to advance photodynamic therapy for treating cancer, today announced the company ... New York (“Roswell Park”). The agreement provides Lumeda globally exclusive rights to ...
Breaking Biology Technology:
Cached News: