Navigation Links
Scientists ID molecular 'switch' in liver that triggers harmful effects of saturated and trans fats

Dana-Farber Cancer Institute researchers have identified a molecular mechanism in the liver that explains, for the first time, how consuming foods rich in saturated fats and trans-fatty acids causes elevated blood levels of cholesterol and triglycerides and increases one's risk of heart disease and certain cancers.

In the Jan. 28 issue of Cell, scientists led by Bruce Spiegelman, PhD, report that the harmful effects of saturated and trans fats are set in motion by a biochemical switch, or co-activator, in liver cells called PGC-1beta.

Until now, scientists lacked a detailed explanation of how saturated and trans fats caused an increase in blood cholesterol and triglycerides, while diets high in unsaturated and polyunsaturated fats did not. Evidence pointed to the liver, which is responsible for the body's synthesis of triglycerides and cholesterol, but the molecular chain of events from eating fats to the buildup of cholesterol and triglycerides in the blood were unknown.

"What we have found is a missing link, a mechanism by which saturated fats and trans fats can do their dirty work," said Spiegelman, who carries out basic research on fat cells and metabolic pathways in diabetes and cancer at Dana-Farber. "It offers the opportunity to try to understand what makes these fatty acids so deleterious, and what we need to avoid."

Moreover, it is possible that in the future, drug therapy might be used to "turn down" the mechanism, decreasing cholesterol levels and heart disease risk, explained Spiegelman, who is also a professor of cell biology at Harvard Medical School.

Saturated fats are found in fatty cuts of meat, whole-milk dairy products, butter, and palm and coconut oils; they are associated with higher risk of coronary disease. The healthier polyunsaturated fats are those that remain liquid at room temperature, such as various types of vegetable oils.

Trans-unsaturated fatty acids, or trans fats, are artificially prod
'"/>

Source:Dana-Farber Cancer Institute


Page: 1 2 3

Related biology news :

1. Scientists Replicate Hepatitis C Virus in Laboratory
2. Scientists detect probable genetic cause of some Parkinsons disease cases
3. Scientists find missing enzyme for tuberculosis iron scavenging pathway
4. Scientists seek answers on what activates deadly anthrax spores
5. Yale Scientists Find MicroRNA Regulates Ras Cancer Gene
6. Scientists collaborate to assess health of global environment
7. Scientists decipher genome of fungus that can cause life-threatening infections
8. Scientists discover the cellular roots of graying hair
9. Scientists rid stem cell culture of key animal cells
10. Scientists develop new color-coded test for protein folding
11. Scientists identify genetic pathways essential to RNA interference
Post Your Comments:
(Date:4/2/2015)... BETHESDA, Md. , April 2, 2015 ... Salt Lake City , the American ... election of five new directors to its Board.  Members ... for the ACMG and for forming and advancing its ... the medical genetics profession. "It,s an eventful ...
(Date:3/31/2015)... NEW YORK , March 31, 2015  Elephant ... the "Company"), a global provider of Software Defined Network ... solutions, today announced total revenue of approximately $20.4 million ... to a restated $19.5 million for the year ended ... of calendar 2014, the Company had completed its multi-year ...
(Date:3/24/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/kvdtcw/face_and_voice ) has ... Global Strategic Business Report" report to their offering. ... in US$ Thousands by the following Segments: Face Biometrics, and Voice ... Canada , Japan , ... East & Africa , and ...
Breaking Biology News(10 mins):American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 2American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 3American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 4American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 5American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 6American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 7American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 8Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 2Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 3Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 4Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 5Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 6Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 2Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 3Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 4Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 5Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 6
... that have died in mass strandings in New Zealand ... a new study concludes, challenging a popular assumption that ... almost certain death because of familial ties. Using ... determined that both related and unrelated individuals were scattered ...
... , Francisella tularensis , the cause of tularemia ... considered a potential biological weapon because it is readily aerosolized ... humans. While a live attenuated vaccine strain has been ... understand the basis for its attenuated virulence. In an ...
... engineers are developing the right mix to reduce concrete,s ... biofuel byproducts. "The idea is to use bioethanol ... concrete as a partial replacement of cement," said Feraidon ... using these materials we can reduce the carbon footprint ...
Cached Biology News:Study questions the role of kinship in mass strandings of pilot whales 2Study questions the role of kinship in mass strandings of pilot whales 3News tips from the journal mBio®, volume 4, issue 1 2Researchers building stronger, greener concrete with biofuel byproducts 2Researchers building stronger, greener concrete with biofuel byproducts 3
(Date:4/23/2015)... , April 23, 2015  Neurocrine Biosciences, Inc. (Nasdaq: ... report its first quarter 2015 results before the Nasdaq ... then host a live conference call and webcast to discuss ... morning, April 30, 2015 at 8:00 a.m. Eastern Time ... the live conference call by dialing 866-952-1906 (US) or ...
(Date:4/23/2015)... FRANCISCO, Calif. , April 23, 2015  Veracyte, Inc. ... entered into a definitive agreement to sell approximately $40 ... Under the agreement, the investors will purchase an aggregate ... price of $8.15 per share, the closing stock price ... by new and existing investors, including Broadfin Capital, Camber ...
(Date:4/23/2015)... HOUSTON , April 23, 2015  Metanome, ... today announced the company has changed its name ... reflect Diversigen,s positioning as the single commercial source ... need to capitalize on the diverse opportunities of ... types that Diversigen accepts – including those that ...
(Date:4/23/2015)... Delpor, Inc. (Delpor), a biotechnology company ... States Patent and Trademark Office has issued 2 new ... US Pat. No. 8,986,727 was issued on March ... device for the sustained release of therapeutic agents. ... sustained (zero-order) release of large and small molecules for ...
Breaking Biology Technology:Neurocrine Biosciences Announces Conference Call and Webcast to Report First Quarter 2015 Results 2Veracyte, Inc. Announces $40 Million Private Placement 2Veracyte, Inc. Announces $40 Million Private Placement 3Veracyte, Inc. Announces $40 Million Private Placement 4Metanome Announces Corporate Name Change to Diversigen 2Delpor, Inc. Announces the Issuance of 2 New US Patents Based on its Nanopore Technology which Enables the Sustained Release of Drugs from a Small Implant Device 2Delpor, Inc. Announces the Issuance of 2 New US Patents Based on its Nanopore Technology which Enables the Sustained Release of Drugs from a Small Implant Device 3
... June 2 NeoGenomics, Inc. (OTC Bulletin ... Sixth Annual Noble Financial Equity Conference at 12:30 PM ... the Seminole Hard Rock Hotel in Hollywood, FL. ... give a presentation regarding NeoGenomics, market positioning, financial performance, and ...
... Genoptix, Inc. (Nasdaq: GXDX), a specialized laboratory services provider, today announced the Company,s participation at two ... , , EVP ... SMID Cap Conference at the InterContinental Hotel in Boston, Mass. beginning at ... , , ...
... to be effective in making silicon-based electronics may be viable ... molecule thick. Researchers at the Max Plank Institute for Metals ... online in the journal Physical Review B on June 1. ... the basis for a host of extremely small and efficient ...
Cached Biology Technology:NeoGenomics to Present at Noble Financial's 6th Annual Equity Conference on Monday, June 7th 2NeoGenomics to Present at Noble Financial's 6th Annual Equity Conference on Monday, June 7th 3Genoptix Announces Participation at June Investor Conferences 2
... Capping system features the Vaccinia ... the components needed to produce ... end of di- or triphosphate ... high efficiency capping (virtually 100%) ...
Extracti-Gel D Detergent Removing Gel...
... high speed and excellent temperature uniformity. Protocols ... Thermocycler can be run without any modifications. ... block for 48 or 96 wells. In ... in-situ applications are available. The High Precision ...
Designed for use with the Agencourt SprintPrep 384 kit and all MCPrep reagent kits. Used with flat bottom 96-well microplates such as deep well plates used to culture bacteria....
Biology Products: