MedicineWorld.Org
Your gateway to the world of medicine
Home
News
Cancer News
About Us
Cancer
Health Professionals
Patients and public
Contact Us
Disclaimer

Medicineworld.org: Mate tea lower cholesterol

Back to heart watch blog Blogs list Cancer blog  


Subscribe To Heart Watch Blog RSS Feed  RSS content feed What is RSS feed?

Mate tea lower cholesterol




When a study in her lab showed that mate tea drinkers had experienced a significant increase in the activity of an enzyme that promotes HDL (good) cholesterol while lowering LDL (bad) cholesterol, University of Illinois scientist Elvira de Mejia headed for Argentina where mate tea has been grown and taken medicinally for centuries.

She returned with a five-year agreement signed by administrators of La Universidad Nacional de Misiones (UNaM) to cooperate in the study of 84 genotypes of mate tea, both cultivated and wild, never-before-studied, varieties. The arrangement calls for the writing of joint grants and an exchange of students and professors between UNaM and the U of I.

The scientist is also negotiating a grant from the National Institute of Yerba Mate to fund further research, she said.



Mate tea lower cholesterol
Mate

Our studies show that some of the most important antioxidant enzymes in the body are induced by this herbal tea, said de Mejia of her study in Septembers Planta Medica.

Because Argentina has the different mate varieties, well be able to do more comparisons and characterizations between the different genotypes and the benefits of different growing conditionswhether in sun (on a plantation) or in shade (under the rainforest canopy), she added.

Not only does de Mejia hope to identify the most nutritionally beneficial genotypes of the herbal tea, she hopes that Argentine experience with drying and processing mate will lead to improved extraction of the teas bioactive compounds. Food companies are very interested in adding tea extracts to juices, soda, and even beer to increase the nutritional value of their products, she said.

In the cholesterol study, blood levels of the cardio-protective enzyme paraoxonase-1 were measured before and after healthy volunteers consumed either 0.5 liters of mate tea, milk, or coffee. Activity of the enzyme increased an average of 10 percent for mate tea drinkers in comparison to the other drinks.

The tea used in the study was prepared at the same concentration used in South America, eventhough they commonly drink 2 to 3 liters per day, said de Mejia.

In South America, mate is commonly drunk from a dried gourd and consumed through a metal straw. About 50 grams of dry leaves are packed into the gourd and hot water is poured over them; this is repeated a number of times, with as much as to 1 liter of water. This method of consumption allows tea drinkers to slowly extract the antioxidants and polyphenols before they can be oxidized.

To duplicate these results with mate teabags, you would need to use four or five teabags instead of one. Its a strong taste, but a number of people say that coffee has a strong, bitter taste. This is more of a grassy herbal taste. It may be an acquired taste, but I seem to have acquired it, said graduate student Caleb Heck who accompanied de Mejia to Argentina.

Heck characterized the tea consumed in the cholesterol study in de Mejias U of I labs and is now working with the tea brought back from Argentina. He said that mate is high in xanthines (mainly caffeine), and he has found 12 polyphenolic compounds at different concentrations, depending on where the tea was grown. Polyphenols are thought to have a protective effect against cancer and cardiovascular disease.

He is quickly becoming something of an authority on the subject, and he and de Mejia have written a comprehensive review of mate tea, including its chemistry, health implications, and the technological considerations involved in its processing, that has been published in Novembers Journal of Food Science, which can be viewed at http://www.blackwell-synergy.com/toc/jfds/0/0. The study was funded by the University of Illinois Research Board.


Posted by: Daniel    Source




Did you know?
When a study in her lab showed that mate tea drinkers had experienced a significant increase in the activity of an enzyme that promotes HDL (good) cholesterol while lowering LDL (bad) cholesterol, University of Illinois scientist Elvira de Mejia headed for Argentina where mate tea has been grown and taken medicinally for centuries.

Medicineworld.org: Mate tea lower cholesterol

Main Page| Cancer blog| Cancer blogs list| Lung cancer blog| Colon cancer blog| Prostate cancer blog| Breast cancer blog| Diabetes watch blog| Heart watch blog| Allergy blog| Bladder cancer blog| Cervical cancer blog| Colon cancer news blog| Diabetes news blog| Esophageal cancer blog| Gastric cancer blog| Health news blog| Heart news blog| Infectious disease blog| Kidney watch blog| Lung disease blog| Lung cancer news blog| Mesothelioma blog| Neurology blog| Breast cancer news blog| OBGYN blog| Ophthalmology blog| Ovarian cancer blog| Cancer news blog| Pancreas cancer blog| Pediatrics blog| Prostate cancer news blog| Psychology blog| Research blog| Rheumatology blog| Society news blog| Uterine cancer blog| Weight watch blog|

Copyright statement
The contents of this web page are protected. Legal action may follow for reproduction of materials without permission.