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Heart Attacks and Inflammation: Before and After

| Posted by in Heart Health | Immune Homeostasis (Immune Balance) | Inflammation | Stroke - (0 Comments)

Our heart is “simply” a large muscle that continuously pumps oxygen-rich blood throughout the body supplying cells, tissues and organs with life-giving oxygen and nutrients. The cells of the body release carbon dioxide and other gases as a by-product of producing energy. These gases are removed from the blood as it circulates through the lungs.

A heart attack results when blood is blocked from getting into the arteries that feed the heart. If not treated rapidly, parts of the heart muscle may die from lack of oxygen. After a heart attack, danger signals released by dying cells trigger inflammation which in turn attracts immune cells into the area to clear dead cells and tissue debris.

The high numbers of inflammatory immune cells stick to the plaque, increasing the risk for another heart attack. The body tries to heal itself by transforming the damaged heart muscle cells into scar tissue. Because scar tissue is hard and not flexible, a badly scarred heart cannot pump blood efficiently.

For any sort of healing, the body has to produce the right amount of inflammation. There has to be sufficient inflammation for the healing process, but not so much that excessive scarring occurs. Depending on how much scar tissue forms, congestive  heart failure may result due to the inability of the heart to pump normally.

Our cells produce cholesterol which is essential for a wide range of biological functions. The body has to manufacture the right amount of cholesterol and which has to go to specific parts of the body.   If too much cholesterol is produced over many years, cholesterol plaque builds up in the arteries resulting in atherosclerosis. Atherosclerosis is triggered by lifestyle issues that cause uncontrolled inflammation such as high blood pressure, smoking, poor dietary choices and excessive weight.

Plaque deposits narrow the passageways of arteries and block the flow of blood in vessels that feed the heart itself. The plaque may eventually harden, burst and release blood platelets that form clots in an attempt to stop the bleeding. The blood clots may cause even more blockages in the arteries, obstructing blood and oxygen flow and causing more heart damage. An artery to the heart which is blocked may result in a heart attack; a blocked artery in or leading to the brain results in a stroke.

 What is a Heart Attack?

 

In Summary:

1) Acting fast at the first sign of heart attack symptoms can save lives and limit damage to the heart. Heart attack treatment works best when it’s given right after symptoms occur. If you think you, or someone else is having a heart attack, even if you’re not sure, call emergency services immediately.

2) Current therapies for atherosclerosis and cardiovascular disease do not target inflammatory cells. Maintaining the body in immune homeostasis, immune balance, may help the body support healthy heart and cardiovascular function.

www.nhlbi.nih.gov/health/health-topics/topics/heartattack
www.heart.org/HEARTORG/Conditions/Inflammation-and-Heart-Disease_UCM_432150_Article.jsp#.V7un7mf6vcs
www.pnas.org/content/113/29/8212
www.ncbi.nlm.nih.gov/pubmed/27619160
www.ncbi.nlm.nih.gov/pmc/articles/PMC3375712
www.ncbi.nlm.nih.gov/pubmed/27515051
stm.sciencemag.org/content/8/342/342ra80www.ncbi.nlm.nih.gov/pubmed/27542099

 

 

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Inflammation, Infections, and Statins

| Posted by in Cancer | Chronic Disease | Exercise | Immune Homeostasis (Immune Balance) | Infections | Infections and Inflammatory Responses | Inflammation | Nutrition - (0 Comments)

Healthcare-associated infections (HAI), nosocomial infections, are caused by a wide variety of bacteria, fungi, and viruses.  One bacterium that commonly causes illness is Clostridium difficile, or C. difficile.  Hospitalized children and elderly people are at special risk of acquiring these bacteria, infections that result in severe diarrhea.  Individuals infected with C. difficile are more likely to be admitted to short and long-term care facilities, have longer hospital stays, are more likely to require colon surgery, and are at higher risk of death.

Nosocomial infections are on the increase, probably due to the heightened use of antibiotics used in hospitalized patients.  The antibiotics kill off beneficial bacteria that might offer protection against getting infections such as C. difficile.

Intriguingly, in a recent study, patients admitted to the hospital who were on statins, medications used to lower low-density lipoprotein (LDL) cholesterol levels, had a 45% lower risk of getting Clostridium difficile infections compared to individuals that were not on these sorts of medications.

Other studies suggest that statins affect immune responses by down-regulating, inhibiting inflammation.  For example, statins prevent and reverse chronic and relapsing disease in an animal model similar to multiple sclerosis, reduce lung inflammation in animals that exposed to airborne particles, and have been shown to lower the risk of death of individuals suffering from 13 different types of cancers.

In atherosclerosis, primarily caused by an inflammatory response directed against the wall inside blood vessels, statin therapy reduces blood vessel inflammation and significantly reduces markers of inflammation such as hsCRP, high sensitivity C – reactive protein.

Health warnings have been issued by the FDA for statins.  These risks include:  memory loss and confusion, liver damage, heightened diabetes, and for certain statins, muscle weakness.  I am certainly NOT advocating that people use statins to limit inflammation.  Instead, I want the reader to focus on the fact that the effects of statins appear to be due, in the long run, to their ability to modulate acute (short-term) and chronic (long-term) inflammation.

 As I try to emphasize in all my posts, the key to good health is to achieve immune homeostasis, the appropriate balance of inflammatory and anti-inflammatory responses

 Immune homeostasis is most easily achieved through a) consistent physical activity, b) controlling fat deposits around the abdominal area, c) increasing consumption of vegetables and fruits, d) moderate exposure to sunlight (or vitamin D3 supplementation when the sun is not sufficient), e) ingestion of omega-3 fatty acids from a fish source, and f) and daily consumption of hyperimmune egg.

Feel free to contact Dr. Hellen at DrHellen@DrHellenGreenblatt.info with questions or to consult with her. A message may also be left at: 1.302-265.3870 or click on: http://drhellengreenblatt.info/contact-dr-hellen/.

 

http://www.cdc.gov/hai/organisms/cdiff/cdiff_infect.html
http://www.medpagetoday.com/MeetingCoverage/ACG/35590?utm_content=&utm_medium=email&utm_campaign=DailyHeadlines&utm_source=
http://www.mdjunction.com/forums/lyme-disease-support-forums/medicine-treatments/1722560-pubmed-report-c-diff-death-from-lyme-disease/limitstart/40
http://content.onlinejacc.org/article.aspx?articleid=1389315
http://www.medpagetoday.com/HematologyOncology/BreastCancer/35856?utm_content=&utm_medium=email&utm_campaign=DailyHeadlines&utm_source=WC&xid=NL_DHE_2012-11-10&eun=g409635d0r&userid=409635&email=spider1222%40hotmail.com&mu_id=5510283
http://www.nejm.org/doi/full/10.1056/NEJMoa1201735
http://content.onlinejacc.org/article.aspx?articleid=1389317
http://www.ncbi.nlm.nih.gov/pubmed/20421792
http://circ.ahajournals.org/content/106/16/2041.full
http://www.ncbi.nlm.nih.gov/pubmed/22910717
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1986656/
http://www.nejm.org/doi/full/10.1056/NEJMoa1201735

 

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