Navigation Links
The unsolved mystery of kava toxicity
Date:7/13/2011

A major new review of scientific knowledge on kava a plant used to make dietary supplements and a trendy drink with calming effects has left unsolved the mystery of why Pacific Island people can consume it safely, while people in the United States, Europe, and other Western cultures sometimes experience toxic effects. The article appears in ACS' journal Chemical Research in Toxicology.

Line Olsen and colleagues point out that for centuries, people of the Pacific Islands have safely consumed a beverage made from crushed kava roots. Kava'scalming effects made it popular in Western cultures in the 1990s, when people also began to use a herbal supplement for the treatment of anxiety, emotional stress and sleep problems. But in 2001, reports of liver damage among Westerners who took kava supplements gained widespread attention. Many Western countries, including the United States, the United Kingdom, and Canada, ban or regulate the sale of kava products. To determine why kava is toxic to some people but not to others, the researchers sifted through the scientific studies published on the topic.

Their review of 85 scientific studies on kava toxicity found no consensus on kava toxicity, despite several theories that have emerged over the years. Culprits include methods for preparing kava, the particular species of kava used, the possible toxicity of substances produced by the body when kava is digested and genetic differences among consumers. "To date, there remains no indisputable reason for the increased prevalence of kava-induced hepatotoxicity in Western countries," the researchers say.


'/>"/>

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert

Page: 1

Related biology news :

1. Scripps Research scientists solve mystery of nerve disease genes
2. River mystery solved
3. Team solves decades-old molecular mystery linked to blood clotting
4. New genetic study helps to solve Darwins mystery about the ancient evolution of flowering plants
5. Bacterial genome may hold answers to mercury mystery
6. 44-year-old mystery of how fleas jump resolved
7. Stretching the truth: JILA biophysicists help unravel DNA stretching mystery
8. Rice physicists help unravel mystery of repetitive DNA segments
9. Mystery dissolves with calcium pump discovery
10. VIMS scientists help solve mystery of alien pod
11. A mystery solved: How genes are selectively silenced
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/15/2014)... University Mainz (JGU) as a full member, ensuring ... a significant nationwide standing in the field of ... Gutenberg University Mainz as a full member of ... and international competition for the best minds and ... proud that Mainz University has been recognized as ...
(Date:10/15/2014)...   Neurotechnology , a provider of high-precision ... the VeriLook Surveillance 3.0 software development kit ... face identification using live video streams from single ... version not only identifies faces in a crowd, ... they are moving through the video frame. It ...
(Date:10/14/2014)... is how to produce enough food to feed the ... Agriculture Organization of the United Nations predicts that food ... to feed a growing global population, and plants are ... production. Plants—grains, cereals, fruits, vegetables, and more—feed humans ... must tap into our knowledge of how plants work ...
Breaking Biology News(10 mins):Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 3VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 2VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 3Building a bridge from basic botany to applied agriculture 2Building a bridge from basic botany to applied agriculture 3
... Ph.D., of Fred Hutchinson Cancer Research Center, has received ... study the potential role of "genetic conflicts" in the ... colleagues want to find out whether a lost evolutionary ... whether autoimmunity when the body,s immune system turns ...
... PhD candidate has been highly awarded for his innovative image ... Norton, from the Kielpinski group in the Centre for Quantum ... following extensive work on high resolution imaging. Run ... the Extreme Imaging competition aims to promote and celebrate local ...
... French . Vancouver, B.C. -- Marine protected areas ... wrong time. As a result of changing conditions, marine species have been ... per year over the past 50 years, and forecasts of shifts of ... on where to put MPAs weren,t always made with a changing climate ...
Cached Biology News:Did an evolutionary arms race cause lupus? Biologist Harmit Malik receives grant to try and find out 2Extreme imaging wins science praise 2Marine protected areas: changing climate could require change of plans 2
(Date:10/22/2014)... October 22, 2014 Involution Studios ... release of a new infographic, Understanding Ebola . ... a beautifully designed, easy to follow informative tool for ... of outbreak, symptoms and prevention. , "As the news ... the 2014 Ebola outbreak represents not only a healthcare ...
(Date:10/22/2014)... October 22, 2014 According to ... by Service Type (Consulting, Integration, Deployment & Support), ... Deployment Model (Public, Private, Others (Hybrid & Community)) ... defines and segments the Cloud Professional Services Market ... forecasting of revenues. It also identifies the drivers ...
(Date:10/22/2014)... KONG , Oct. 22, 2014  aTyr Pharma ... that rare disease expert John C. McKew , ... McKew brings more than two decades of expertise in ... Institutes of Health, Wyeth Research and Genetics Institute, Inc. ... aTyr,s efforts to expand and translate its novel Physiocrine ...
(Date:10/20/2014)... ON , Oct. 20, 2014 /PRNewswire/ - BIOREM Inc. (TSXV: ... $1.7 million which brings Q3 orders to $5.8 million and provides ... control projects in North America and one ... continue to bid new projects at record levels," said Peter ... were higher at the end of Q3 than they have been ...
Breaking Biology Technology:Involution Studios' Ebola Infographic Provides Key Disease Information and Statistics at a Glance 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 4Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 5aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 2aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 3
... George Bush and Bill Clinton urge Americans to come to aid ... from two former presidents, but because of how they ask people ... and Clinton point viewers to the Web site for the ... of dollars that have streamed in over the Internet since the ...
... Hamlet: Do you see that cloud, thats almost in shape ... a camel, indeed. ,Hamlet: Methinks it is like a weasel. ... a whale? ,Polonius: Very like a whale. , Hamlet ... Shakespeare) , ,Occasionally stumbling across truth but mostly skilled ...
... Controls unveiled its newest products this week at ... The additions to the line are part of the ... ease of use for customers and branching out into ... showed off its latest vehicular battery, designed for hybrid ...
Cached Biology Technology:Outpouring of tsunami relief displays power of the Internet 2Outpouring of tsunami relief displays power of the Internet 3Follow these three rules when choosing tech consultants 2Follow these three rules when choosing tech consultants 3Follow these three rules when choosing tech consultants 4
Antibody specific for trimethyl-Lys27 of histone H3. Mouse monoclonal. Antigen: Synthetic peptide derived from histone H3, trimethylated at lysine 27...
DL-Dithiothreitol (Clelands Reagent) ,PROTEASE FREE!! ,Molecular Biology Grade ,PRODUCT MUST SHIP NEXT DAY DURING HOT SUMMER MONTHS. ,C 4 H 10 O 2 S 2 ,Molecular Weight: 154.25 ,CAS RN: [27565-...
DTT 50 l...
...
Biology Products: