Tag Archives: Nitric oxide

Create your own nitric oxide to protect your hearts

Simplified diagram of the human Circulatory sy...
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Exercise. Yeah I know. Do you really want to hear about another way exercise is good for you? Well, this appears to be a slightly new take. It’s about how nitric oxide (NO), a short-lived gas produced by the body during exercise, benefits the heart.

A recent study published in the journal, Circulation Research, says that voluntary exercise (as opposed, I guess, to sitting in some machine that moves your body for you) produces nitric oxide which then “turns on chemical pathways that relax blood vessels to increase blood flow and activate survival pathways [emphasis mine].” Exercise was found to boost “levels of an enzyme that produces nitric oxide (eNOS, endothelial nitric oxide synthase).”

So in short, you choose to exercise. Your body produces NO, then the NO is “stored in the bloodstream and heart in the form of nitrite and nitrosothiols,” which are then withdrawn from storage as needed. And even cooler, these reserves remain elevated for a week after exercise has stopped—“unlike other heart enzymes stimulated by exercise”—and don’t return to baseline until four whole weeks after exercise. So it seems we get a lot for a little effort.

I once had a book called Dr. Naglier’s Body Maintenance and Repair Book. He said, emphatically, that even five minutes of movement a day is so much better for your body than nothing, that you should never not do anything because you’re afraid you couldn’t possibly do all the exercise “they” recommend.

Score another big one for nitric oxide. It’s truly a health friend, and it doesn’t take much to put it to work for you.

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Nitric oxide: a magic bullet against infection?

HAMBURG, GERMANY - JUNE 02:  A lab technician ...
Image by Getty Images via @daylife - Positive for infection

Nitric oxide (NO) is already known to block the growth of certain bacteria and protect the body against certain infections as well as keep some good substances from producing too much of themselves. Wow, a regular health watchdog.

Color-enhanced scanning electron micrograph sh...
Image via Wikipedia - Salmonella under the scope

“Nitric oxide is naturally produced in the nose and the gut and other tissues in the body to ward off infection,” says the author of the report on a new study. The study used salmonella to show that “nitric oxide’s antimicrobial actions are due to its interference with the metabolism, or energy production, of pathogens.” Inhibiting the bad guy’s ability to reproduce itself produces a condition called nitrosative stress—which starves the bad guys and is tough on bacteria but benign for the host organism.

It’s not exactly magic, but it might as well be, since it opens a new pathway for scientists. By “learning how the body naturally controls the energy supplies and growth of varied disease-causing organisms” they may be able to create antimicrobial drugs that perform similar actions and thus strengthen nature’s own natural defenses against infection. Read the article.

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Drugs improve health by delivering extra nitric oxide

“The Baptist” was the site of one of the first...
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As we’ve discussed in previous posts, nitric oxide is a “crucial biological mediator” that helps the body in a dozen different ways—from sexual performance enhancement to easing arthritis to potentially preventing or reversing atherosclerosis. So scientists have been searching for ways to improve the delivery of nitric oxide to critical systems when needed. In their efforts they’ve discovered what they call nitric oxide donor drugs, logically enough, since their main purpose seems to be to help the body generate more nitric oxide and use it more effectively.

Just read about a new such drug, naproxcinod, they’ve tested in comparison with placebo and naproxen, which is a standard NSAID for arthritis. Looks promising for treating the hip pain of osteoarthritis. Having been a hip replacement patient—and having spent more than 10 months in twice-a-week therapy trying to recover semi-normal activity levels—I can vouch for what a great thing it would be to be able to relieve that pain and keep from having that terribly invasive surgery. But of course my real hope for future hip-and-knee-pain-sufferers is that researchers will find a way—they’re already saying it’s promising—to use stem cells to regenerate lost cartilage in our joints. The big issue with that is getting the stem cells to differentiate into the three needed types of cells for cartilage, including the “scaffolding” that has the powerful weight-bearing capabilities of our natural cartilage.

What an amazing thing is the human body. I hope I’m around long enough to see these studies result in actually saving someone from a brutal hip replacement operation.

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Summer=watermelon=nitric oxide=lower blood pressure

Watermelons
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Yep. Eating watermelon boosts your nitric oxide which in turn lowers your blood pressure, according to this report.  It’s not that watermelon introduces NO directly into your body. Rather, your body converts into nitric oxide a substance watermelon has lots of, L-citrulline.

The Emory University professor says this juicy fruit is also full of lycopene, the antioxidant carotene that tomatoes have been bragging about for years now. Good to hear, I guess. ‘Cuz I always thought the watermelon my parents served us out in the yard some hot summer nights was just a big messy excuse for spitting stuff out—an activity normally proscribed by good manners.

Reminds me of the time I discovered a new nutritional fact about one of my favorite vegetables, green beans. I’d wondered for years what the hell made these little guys so tasty since I couldn’t find any listing showing they had any  significant quantities of any known-to-be-valuable vitamins or minerals. And then scientists discovered flavonoids—and wow, turns out green beans promote the production of NO and are really good for us. I’m guessing the same thing may happen one day with other foods that people love but for which scientists haven’t yet figured out redeeming nutritional values.

Potato chips
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I’m wishing potato chips would fall into that category one day.

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Nitric oxide, dark chocolate, and faulty research

Found an email notice today about “dark chocolate’s good and good for you” in which they talk about the fact that dark chocolate may have antioxidant properties that increase the production of one of my favorite substances, nitric

3 Types Of Chocolate
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oxide. Naturally I had to check it out since I’m both a chocolate lover and curious about nitric oxide. They talk about possible effects of flavanols—a subclass of flavonoids—in dark chocolate on human visual and memory performance.

So, okay, I read the whole thing. It’s laid out nicely on the page. The site looks good, and it sounds like fascinating research—testing what effects dark-chocolate-eating had over white-chocolate-eating on the same group of volunteers.

But at the very end the report says that a lot more research has to be done because dark chocolate contains other ingredients not found in white chocolate—chief among which is caffeine. Huh?

Given the craze in our society for caffeine as a magical booster of human performance, it seems incredible to me that these researchers didn’t bother to control for such a powerful substance in these studies.  Made me feel like I’d just wasted my time reading the report.

Hope they keep up the good reporting work but pick better-planned experiments to report on. Check it out: Environmental Health News

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Nitric oxide: Signs of becoming a magic bullet?

Sickle cells characterize sickle cell anemia, ...
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They’ve found another surprising use for nitric oxide: pain relief for sickle cell anemia (SCA) patients. Pain is usually the main reason sickle cell anemia patients are admitted to the hospital—and by the time they get to that stage, doctors are way behind on addressing the problem.

Sickle cell anemis is an inherited disease in which blood cells take on an abnormal shape:

“Normal red blood cells are disc-shaped and look like doughnuts without holes in the center. They move easily through your blood vessels. Red blood cells contain hemoglobin (HEE-muh-glow-bin), an iron-rich protein that gives blood its red color. Hemoglobin carries oxygen from the lungs to the rest of the body.

Sickle cells contain abnormal hemoglobin that causes the cells to have a sickle, or crescent, shape. These cells don’t move easily through your blood vessels. They’re stiff and sticky and tend to form clumps and get stuck in the blood vessels. (Other cells also may play a role in this clumping process.)”

Pain is typically due to the fact that the sickle-shaped blood cells are not passing through the circulatory system at the normal pace. They tend to bunch up and cause pain at the site of the backups. as well as lead to “serious infections, and organ damage.”

Since nitric oxide tends to expand the blood vessels, you’d think it might help by letting the blockages flow more freely, but scientists are speculating that inhaling nitric oxide may also affect the hemoglobin directly, restoring normal shape and charge to affected cells. “The more normal negative charge helps cells repel each other, melts sticky polymers and may prevent new ones from forming,” according to Dr. C. Alvin Head, chairman of the Department of Anesthesiology at the Medical College of Georgia School of Medicine.  In fact, he thinks “one of nitric oxide’s usual duties in the body is to help prevent clot formation.”

This doc thinks that once more research is done to confirm exactly how this NO treatment works for SCA, we might get to the point of giving SCA patients nitric oxide inhalers to prevent their own pain from requiring hospitalizations.

So, okay, I’m going to go out on a completely untested limb here. Since the first line of early defense when someone’s having a stroke (a clot somewhere in the body blocks blood flow to the brain) is to inject a clot-busting drug known as TPA, wonder if it makes sense that some day, instead of systemic drugs like coumadin, we might be able to give people nitric oxide inhalers to keep the blood thin and help prevent stroke. Of course, then we’d have to give people a way to measure their INR (a number telling you how thin your blood is) at home. Right now the only ways are: 1) get a blood draw and have it sent to a lab, or 2) get a finger stick and test it right in the office with a special machine. Hey, we educate diabetics to test their blood and adjust their diet for themselves. Perhaps this nitric oxide idea will take hold one day for heart patients and others who need blood thinners.

And here’s a really wild thought. Red wine helps promote the production of nitric oxide in the bod—it’s a natural blood thinner. And if you drink it regularly, you don’t need as much coumadin. Is there ever a time when it isn’t better to take less of a drug (except of course unless alcohol of any kind is contraindicated for other reasons)?

So maybe one day getting your INR (blood thinness measurement) to the “therapeutic” stage (whatever your doctor says it needs to be) will be a case of testing at home and then toasting at home with your glass of red wine! Now that sounds like a magic bullet I could get into.

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Nitric oxide–the good, the bad and the incomprehensible

Three-dimensional model of NO.
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It’s amazing to me that this one substance, nitric oxide—perhaps it’s not unique in this—is cited as a godsend in one report and a disaster in another. And the record on both sides continues to grow. Check these two Google news items out:

Coffee is ‘good for the heart’, new research finds
It is thought chemicals in coffee improve heart health by preventing damage caused by oxygen molecules and blocking harmful nitric oxide.


Telegraph.co.uk

Cardiff Sports Nutrition Relaunches BSN No Xplode Bodybuilding Supplement
“But one thing our customers kept asking for was No Xplode, which is the most powerful and most effective nitric oxide supplements out there.

How can the same substance be both harmful and incredibly valuable? We find this strange dichotomy wherever we look with nitric oxide. I think I wrote an earlier post about moderation in all things applying to nitric oxide as well. But perhaps more to the point is, usefulness is in the eye of the beholder, or in this case, user.

In the case of the bodybuilder the benefit might be one you and I aren’t that excited about. But it’s real for them: “The first is that it allows them to achieve that elusive ‘pump’ in the gym on a consistent basis. Without nitric oxide supplements, even when bodybuilders managed to achieve that vein popping, engorged look, it would always fade within hours. With No Xplode, however, the body continues to produce nitric oxide throughout the day, which means the bodybuilder’s muscles continue to look rock hard all day long. It’s really incredible.”

Vein-popping? Engorged? Hey, to each his own.

And as for the other one—about moderate coffee consumption “blocking harmful nitric oxide”—your guess is as good as mine on whether this study is meaningful. They talk about the psychological effects of drinking coffee in a relaxed atmosphere, and how diet (the  study refers to Greek folks) is a strong influence, etc. One of these days I’ll figure out why nitric oxide—considered a vasodilator and all-around beneficent influence on blood vessels—is strangely considered a culprit in stiffening blood vessels among elderly people.

Ah, science. Don’t you love its mysteries and inconsistencies?

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