BULLETIN 4 (2010)

April 21, 2010

Your Health Bulletin is information from scientific literature to make sense of the right choices for your health.  It is a reminder to consider periodic check-ups of your spine, joint mechanics and appropriate exercise.  Maintenance is better than repair!

 

SATURATED FAT – OMEGA-3 – TENSOR FASCIA LATA. BULLETIN 2010-4
YOUR HEALTH YOUR CHOICE

Saturated Fat is NOT the Cause of Heart Disease
Am J Clin Nutr. 2010 Mar; 91(3):535-46. Epub
2010 Jan 13: Meta-analysis of prospective cohort studies evaluating the association of saturated fat with cardiovascular disease.

 

The saturated fat found mainly in meat & dairy products has been regularly vilified by physicians and the media, but a new analysis of published studies finds no clear link between people’s intake of saturated fat and their risk of developing heart disease: According to this study… a reduction in dietary saturated fat has generally been thought to improve cardiovascular health; however… a meta-analysis of prospective epidemiologic studies showed that there is no significant evidence for concluding that dietary saturated fat is associated with an increased risk of CHD or CVD.

 

Benefits of omega-3 fatty acids tally up : Science news Feb 13 2010
In a study in Critical Care posted online January 19, a team of British & Portuguese scientists tested the value of fish oil supplements in 23 people admitted to Padre Américo Hospital in Penafiel, Portugal. The patients were critically ill with sepsis, a life-threatening over-reaction to a microbial infection spread in the blood.

 

The researchers randomly assigned 13 to receive soybean oil and fish oil as their daily fat intake, whereas the other 10 received only soybean oil as their dietary fat component, with total oil amounts about equal between the 2 groups. The patients who received the fish oil recovered & were discharged from the hospital in a median of 28 days, compared with 82 days for those getting soybean oil only. Tests showed that patients receiving fish oil showed signs of reduced inflammation and, possibly because of this, processed oxygen better.

 

In other new research, scientists investigated the effect of omega-3s on telomere length. Telomeres are the strings of repeating DNA sequences at the ends of chromosomes. If telomeres shorten too much, they stop functioning as DNA safeguards & the cell dies. Some clinical studies have linked telomere shortening to earlier death. “In cells, telomere length is a big determinant of aging,” says cardiologist Ramin Farzaneh-Far of the University of California, San Francisco. Farzaneh-Far and his colleagues recorded telomere length in white blood cells of 608 people with heart disease and an average age in their mid-60s. After 5 years, partici-pants who started out with higher levels of omega-3s had experienced substantially less
telomere shortening than the others, the researchers report in the Jan. 20 Journal of the American Medical Association.

 

Comment

 

Remember the effect of fish oil [EPA-DHA] on eicosanoids – it inhibits the cyclo-oxygenase enzyme [COX] which produces inflammation, clots blood,
narrows blood vessels and suppresses the immune system, and stimulates the COX enzyme which reduces inflammation, prevents clots, relaxes blood vessels and stimulates the immune system. If you attended the Wednesday night tutorials you would remember that there are subtypes of the COX enzyme. COX 2 is inhibited by fish oil whereas COX 1 is stimulated and thereby the benefits of fish oil and the reason for benefit in sepsis and in protecting telomeres.

 

Lipid composition and contaminants in farmed and wild salmon.
Environ Sci Technol. 2005 Nov 15;39(22):8622-9.
Levels of omega-3 (n-3) and omega-6 (n-6) fatty acids and lipid-adjusted
concentrations of polychlorinated biphenyls (PCBs), dioxins, toxaphene, & dieldrin were determined in 459 farmed Atlantic salmon, 135 wild Pacific salmon, and 144 supermarket farmed Atlantic salmon fillets purchased in 16 cities in North America and Europe. Farmed salmon had greater levels of total lipid (average 16.6%) than wild salmon (average 6.4%). The n-3 to n-6 ratio was about 10 in wild salmon and 3-4 in farmed salmon. Salmon, especially farmed salmon, are a good source of healthy n-3 fatty acids, but they also contain high concentrations of organochlorine compounds such as PCBs, dioxins, and chlorinated pesticides. The presence of these contaminants may reduce the net health benefits derived from the consumption of farmed salmon, despite the presence of the high level of n-3 fatty acids in these fish.

 

Are Farmed Salmon Fit Fare?
Environmental Health Perspectives

Volume 112, Number 5, April 2004
In an analysis of salmon toxicants published 9
January 2004 in Science, a team led by environmental affairs professor Ronald Hites of Indiana University showed that farmed salmon contain significantly higher concentrations of 14 organochlorine contaminants such as polychlorinated biphenyls (PCBs) and dioxins than their counterparts caught in the wild.

 

Risk-Based Consumption Advice for Farmed Atlantic and Wild Pacific Salmon Contaminated with Dioxins and Dioxin-like
Compounds
VOLUME 113 | NUMBER 5 | May 2005 • Environmental Health Perspectives
We present information on cancer and non-cancer health risks of exposure to dioxins in farmed and wild salmon. Consumption of farmed salmon at relatively low frequencies results in elevated exposure to dioxins and dioxin-like compounds with commensurate elevation in estimates of health risk.

 

COMMENT: The reason for the last 3 references is that there are problems of contaminants in fish whether wild or farmed. It appears that there is less trouble with wild than farmed. In order to get the benefit of fish oil without contaminants, the fish oil must be further processed to remove the PCB’s, Dioxins/Dioxin like compounds and heavy metals—mercury, lead, cadmium etc. If the fish oil product cannot certify such contaminant removal it should not be used. For those of you using the EPA/DHA [fish oil] from this office
such contaminants have been removed and certification is available.

 

Tensor Fascia Lata – TFL – is one of the major muscles of the lower limb helping to stabilize the pelvis & knee. When the pelvic joints [sacro-iliac joints] are too tight this muscle often with other pelvic muscles will develop adhesions [strain] creating pain locally, often interpreted as hip pain, as well as referral to the outside of the leg as in the diagram. Chronic strain to this muscle and sacro-iliac joints will impair proper hip mobility which over time as in any other muscle-joint complex will lead to degenerative changes in the hip [osteoarthritis]. To get rid of the strain and stop this process both the SI joints and the TFL must be physically manipulated to release the adhesions to be followed by appropriate exercise to the SI joints, i.e. knee to chest & modified lunge as well as side stretch for the TFL. An exercise bike is useful, as you should know, to stimulate motion sensors to get the brain to relax the muscles & increase the circulation, aiding the manipula-tion to the muscle-joint complex. As you are aware, this musclejoint area is checked each time I see you, since it is the mechanical centre of gravity of our body mechanics and thereby directly affects all other movement. If you do not know how to stretch this muscle, or forget any of the exercises for this area, be certain
to ask to be shown next time you are in the office. As well, there are 3 exercise bikes in the office now and it is useful for you to use them prior to treatment during active care or monthly check-ups.

 

 

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