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Latest Yeast Stories

2009-04-03 08:02:07

Whitehead Institute researchers have quintupled the number of identifiable prion proteins in yeast and have further clarified the role prions play in the inheritance of both beneficial and detrimental traits."The big debate in the field is are the prions functional "“ are they evolved to be prions, or are they always a disease, as in "mad cow'" disease in mammals," says Randal Halfmann, a graduate student in Whitehead Member Susan Lindquist's lab, and co-author of the paper featured in...

2009-04-02 13:48:16

Special proteins known as prions, which are perhaps best known as the agents of mad cow and other neurodegenerative diseases, can also serve as an important source of beneficial variation in nature, confirms a new study in the April 3rd issue of the journal Cell, a Cell Press publication. After an extensive search through the genome of yeast for proteins with prion-like character, the researchers found two dozen prion-forming proteins, most of which had never been seen before."We had...

2009-03-06 11:55:10

Animal studies show a reduction of calories is linked to longer life but Canadian researchers say sugar may be the link to age-related diseases. Canadian researchers found sugar -- in particular how cells' react to its presence -- linked to aging. The study, published in the journal PLoS Genetics, found that yeast cells in which the gene for a glucose sensor was removed had the same lengthened lifespans as had the yeast on a glucose-restricted diet. At a basic level, the researchers say,...

2009-02-25 12:08:27

Waste sugar xylose fermented to ethanol through introduction of a single stepEckhard Boles, co-founder of the Swiss biofuel company Butalco GmbH and a professor at Goethe-University in Frankfurt, Germany, has discovered a new enzyme which teaches yeast cells to ferment xylose into ethanol. Xylose is an unused waste sugar in the cellulosic ethanol production process. The researchers have recently filed a patent application for their process.In industrial fermentation processes, the yeast...

2009-02-02 14:58:30

U.S. researcher suggests there is a genetic link between Parkinson's disease and manganese poisoning. The study, published in Nature Genetics, ties Parkinson's disease to a protein in the brain -- alpha synuclien -- misfolding and forming clumps on the basis of how the protein behaves in the type of yeast used in baking and brewing. The similarity was discovered by Aaron Gitler -- studying yeast while at England's Whitehead Institute in Cambridge -- after reading about a type of Parkinson's...

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2009-01-23 09:57:31

In recent years, genetic studies have uncovered hundreds of DNA variations linked to common diseases, such as cancer or diabetes, raising the prospect that scientists can gauge disease risk based on information in an individual's genome. But the variations identified to date only account for a small percentage "“ typically one to three percent "“ of the overall genetic risk of any common disease. This disappointment has led geneticist Barak Cohen, Ph.D., of Washington University...

2009-01-08 17:46:36

As a chemical for industrial processes, butanol is used in everything from brake fluid, to paint thinners, to plastics. According to a University of Illinois researcher, butanol made from plant material could displace butanol made from petroleum, just not at the fuel pump."Yes you can drive your car around with 100 percent butanol, but butanol is much more valuable "“ about three times more valuable -- as a chemical than as a liquid fuel," said Hans Blaschek, microbiologist in the...

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2008-10-17 14:05:00

College students often spend their free time thinking about beer, but a group of Rice University students are taking it to the next level. They're using genetic engineering to create beer that contains resveratrol, a chemical in wine that's been shown to reduce cancer and heart disease in lab animals. Rice's "BioBeer" will be entered in the International Genetically Engineered Machine (iGEM) competition Nov. 8-9 in Cambridge, Mass. It's the world's largest synthetic biology competition, a...

2008-10-09 00:00:39

Probiotics ease symptoms and help normalize bowel movement frequency in patients with Irritable Bowel Syndrome, or IBS, U.S. researchers say. Probiotics found in yogurt or dietary supplements contain potentially beneficial bacteria or yeasts. A systematic review of the efficacy of probiotics in IBS included 19 randomized controlled trials that involved 1,628 IBS patients found that probiotics are effective in IBS. However, they found there was not enough information to be sure whether...

2008-10-06 18:00:11

By Eric Billingsley Journal Staff Writer There are trillions of microbes living in your gastrointestinal tract that aid digestion and your body's normal and healthy functions. And any disruption to their peaceful co-existence can lead to a host of medical problems. "It's hard to be healthy if you don't have a healthy colon," says Dr. Ben Markham, a board-certified clinical nutritionist in Albuquerque. "One of the best things we can do to stay healthy and strengthen our immune system is to...


Word of the Day
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.