Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Social connections: Could heartwarming be heart-saving?

02.05.2005


Being social has its rewards.



Men who are socially isolated have elevated levels of a blood marker for inflammation that’s linked to cardiovascular disease, according to data from the Framingham Heart Study presented today at the American Heart Association’s 45th Annual Conference on Cardiovascular Disease Epidemiology and Prevention.

"Our analyses suggest that it may be good for the heart to be connected," said Eric B. Loucks, Ph.D., an instructor in the department of society, human development and health at Harvard School of Public Health in Boston. "In general, it seems to be good for health to have close friends and family, to be connected to community groups or religious organizations, and to have a close partner."


Loucks’ team studied 3,267 Framingham Heart Study participants, with an average age of 62 years, who underwent physical exams between 1998 and 2001. The researchers measured blood concentrations of four inflammatory markers including interleukin-6 (IL-6).

The researchers asked the participants five questions about their social network:

  • marital status;
  • number of relatives in whom they can confide private matters;
  • number of close friends in whom they can confide private matters;
    involvement in religious meetings or services; and
  • participation in groups such as senior centers.

They then assigned a social network index of 1 to 4, based on participants’ response, with the lowest number corresponding to social isolation and the highest to high social connection.

After considering major known risk factors for heart disease, men with the lowest level of social involvement had the highest levels of IL-6, the study showed. Specifically, the average concentration of IL-6 in the blood of men with a social network index of 1 was 3.85 picograms per milliliter, compared with 3.52 picograms per milliliter in men with a social network index of 4. "This was a statistically significant difference," Loucks said.

No such link was found in women, however. Researchers noted that the study counted the number of relationships, but did not assess the quality of relationships. For example, were these relationships supportive for the study participants, or did they often cause stress and conflict? Future studies on the quality of relationships will provide knowledge on the effect of social relationships on inflammatory markers in women.

Also, researchers found no association between social involvement and three other markers of inflammation in the blood: C-reactive protein, soluble intercellular adhesion molecule-1 and monocyte chemoattractant protein-1. "These observations need further study," Loucks said.

Studies indicate that inflammation plays a role in causing atherosclerosis. "It seems to allow white blood cells to tether to and become engulfed in the side of the blood vessel wall," Loucks said. "This allows lipids to be deposited in the blood vessel wall more easily, causing atherosclerosis."

Researchers say IL-6 -- and by extension, inflammation -- may be elevated for two reasons in men who are socially isolated. First, social isolation may influence health behaviors such as smoking and physical activity, which in turn affect IL-6 levels. Second, socially isolated people are often depressed and under more stress than their more outgoing counterparts (studies show that even acute stress can increase levels of IL-6).

Carole Bullock | EurekAlert!
Further information:
http://www.heart.org

More articles from Social Sciences:

nachricht Fixating on faces
26.01.2017 | California Institute of Technology

nachricht Internet use in class tied to lower test scores
16.12.2016 | Michigan State University

All articles from Social Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: A Challenging European Research Project to Develop New Tiny Microscopes

The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.

To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Transport of molecular motors into cilia

28.03.2017 | Life Sciences

A novel hybrid UAV that may change the way people operate drones

28.03.2017 | Information Technology

NASA spacecraft investigate clues in radiation belts

28.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>