Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Increased intake of fish can boost good cholesterol levels

04.03.2014

Increasing the intake of fatty fish increases the number of large HDL particles, according to a recent study completed at the University of Eastern Finland.

People who increased their intake of fish to a minimum of 3–4 weekly meals had more large HDL particles in their blood than people who are less frequent eaters of fish. Large HDL particles are believed to protect against cardiovascular diseases. The results were published in PLOS ONE.

The consumption of fish has long been know to be beneficial for health; however, the mechanisms by which fats and other useful nutrients found in fish work in the human body are not fully known. This new study carried out at the UEF provides new information on how the consumption of fish affects the size and lipid concentrations of lipoproteins which transport lipids in the blood. The study participants increased their intake of fatty fish in particular.

It was observed that a higher intake of fish increased the number of large HDL particles and lipids contained in them. Population-based studies have shown that HDL cholesterol – also known as good cholesterol – and large HDL particles are efficient in sweeping extra cholesterol off artery walls. Large HDL particles have been associated with reduced risk of cardiovascular diseases, whereas small HDL particles may even have opposite effects.

... more about:
»HDL »LDL »cholesterol »diseases »low-fat

Positive changes in lipid metabolism were observed in persons who increased their intake of fish most, i.e. in persons who ate at least 3–4 fish meals per week. The study participants ate fatty fish such as salmon, rainbow trout, herring and vendace. No added butter or cream was used in the preparation of fish. The study doesn't give answers to whether a similar effect would have been observed had the study participants mainly eaten low-fat fish such as zander and perch. Low-fat fish may have other health benefits such as lowering of blood pressure, which was observed in an earlier study carried out at the UEF.

State-of-the-art metabolomics was used in the study, enabling for instance a very detailed analysis of lipoprotein particles. The analyses were carried out by the university's NMR Metabolomics Laboratory. Traditionally, cholesterol is divided into "bad" LDL cholesterol and "good" HDL cholesterol, but this method allows the investigation of a total of 14 different particle classes. "People shouldn't fool themselves into thinking that if their standard lipid levels are OK, there's no need to think about the diet, as things are a lot more complicated than that. Soft vegetable fats and fish are something to prefer in any case," Postdoctoral Researcher Maria Lankinen says.

However, the researchers emphasise that a dietary approach to the treatment of increased overall and LDL cholesterol levels is important.

The findings are well in line with the Finnish nutrition recommendations encouraging people to reduce the consumption of red meat and to increase the consumption of fish and other sea foods. Further information on the health effects of fish will become available in the near future as results from the Alfakala project carried out at the UEF Institute of Public Health and Clinical Nutrition become available. The study takes a more detailed approach into the health effects of fish- and plant-derived omega-3 fatty acids, and it studies the health effects of fatty and low-fat fish.

###

For further information, please contact:

Postdoctoral Researcher Maria Lankinen, email: maria.lankinen@uef.fi; tel: +358294454464

Lankinen M, Kolehmainen M, Jääskeläinen, Paananen J, Joukamo L, Kangas AJ, Soininen P, Poutanen K, Mykkänen H, Gylling H, Orešič M, Jauhiainen M, Ala-Korpela M, Uusitupa M, Schwab U. Effects of Whole Grain, Fish and Bilberries on Serum Metabolic Profile and Lipid Transfer Protein Activities – a Randomized Trial (Sysdimet). PLOS ONE 2014

Maria Lankinen | EurekAlert!

Further reports about: HDL LDL cholesterol diseases low-fat

More articles from Health and Medicine:

nachricht NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures
17.11.2017 | National Institute of Standards and Technology (NIST)

nachricht High speed video recording precisely measures blood cell velocity
15.11.2017 | ITMO University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

Im Focus: Wrinkles give heat a jolt in pillared graphene

Rice University researchers test 3-D carbon nanostructures' thermal transport abilities

Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

NASA detects solar flare pulses at Sun and Earth

17.11.2017 | Physics and Astronomy

NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures

17.11.2017 | Health and Medicine

The importance of biodiversity in forests could increase due to climate change

17.11.2017 | Studies and Analyses

VideoLinks
B2B-VideoLinks
More VideoLinks >>>