Dimethylamylamine [DMAA]

Michael Scally MD

Doctor of Medicine
10+ Year Member
Army Studies Workout Supplements After Deaths
http://www.nytimes.com/2012/02/03/business/army-studies-workout-supplements-after-2-deaths.html

By PETER LATTMAN and NATASHA SINGER
Published: February 2, 2012

The United States Army is investigating whether certain dietary supplements for athletes, available until recently at stores on military bases in the United States, may have played a role in the deaths of two soldiers.

Both soldiers died last year after having heart attacks during fitness exercises, according to a spokesman for the Army’s assistant secretary of defense for health affairs.

With names like Jack3d and OxyElite Pro, these supplements are popular with athletes because they contain an ingredient, known as dimethylamylamine or DMAA, advertised to increase energy, concentration and metabolism. The products are best sellers among fitness buffs at stores like GNC and the Vitamin Shoppe, as well as on Web sites like bodybuilding.com.

As a precaution, the Defense Department has removed all products containing DMAA from stores on military bases, including more than 100 GNC shops, pending the completion of an Army safety review, said Peter J. Graves, an Army spokesman.

Consumers, however, can still buy Jack3d, a “preworkout booster,” and OxyElite Pro, a fat burner, at GNC stores and other retailers in the United States.

In a statement, USPlabs, the Dallas company that markets OxyElite Pro and Jack3d (pronounced “jacked”), said there was no medical evidence to suggest the products are dangerous when used as directed. The company said it stood by the safety of its products and was fully cooperating with the inquiry by the Defense Department.

The company and retailers say that DMAA is a dietary supplement. But some medical experts said it should be classified as a drug, which would require approval from the Food and Drug Administration before it could be marketed.

Greg Miller, a spokesman for GNC, said that a variety of retailers in the United States have sold DMAA and that “there is absolutely no reason to believe there are any safety issues.” The Army investigation comes as the F.D.A. has been increasing its scrutiny of the supplement industry. Tamara Ward, a spokeswoman for the F.D.A., declined to comment on whether the agency was investigating products containing DMAA .

Some sports organizations including the World Anti-Doping Authority, the international body that regulates drug use by Olympic athletes, and several professional sports leagues have listed DMAA as a banned stimulant. In Canada, where the government health agency has classified DMAA as a drug, companies cannot sell products containing it as a dietary supplement.

Mr. Graves, the Army spokesman, said that DMAA had been identified in the toxicology reports of the two soldiers’ deaths. He added that the Army had also received some reports of liver and kidney failure, seizures, loss of consciousness and rapid heartbeat in other military personnel who have used products containing DMAA. Mr. Graves said the Army was evaluating whether there were links between the use of the DMAA products and the reported health problems.

Kerri Toloczko, a USPlabs spokeswoman, said in a statement that “there have been over one billion doses of DMAA-containing products taken without a single corroborated serious” health problem among people who used the products as directed.

DMAA, she wrote in the statement, is a naturally occurring compound found in an Asian geranium and has been used as food for more than a century. It is a mild stimulant with effects similar to caffeine, she said, adding that studies of Jack3d and OxyElite “have proven definitively that products containing DMAA are safe when used as directed.”

But some medical and industry experts said DMAA is a powerful drug, and have raised concerns about its widespread availability.

DMAA is a stimulant similar to amphetamine, said Edward Wyszumiala, the general manager of dietary supplement programs at NSF International, a nonprofit organization that tests supplements for the National Football League and other professional sports groups to rule out performance-enhancing substances. He added that Eli Lilly, the pharmaceutical company, originally developed DMAA in the 1940s as a nasal decongestant formula called Forthane.

Although Eli Lilly later stopped marketing Forthane, medical literature in the 1950s warned doctors that DMAA was more potent in animals than ephedrine, an amphetamine-like stimulant, said Dr. Pieter Cohen, an assistant professor of medicine at Harvard Medical School who has studied tainted dietary supplements.

“Unfortunately, what we have now is pharmacological levels of an amphetamine derivative easily available,” said Dr. Cohen, also an internist at the Cambridge Health Alliance. Dr. Cohen added that he was concerned about the results of a recent study of OxyElite Pro that reported the kinds of responses in users — like cold sweats and increased blood pressure — that might foreshadow serious heart problems.

Ms. Toloczko, the spokeswoman for USPlabs, said DMAA met the legal definition of a dietary supplement, denying that it was a drug.

Even so, several prominent professional sports and supplement industry experts said that companies marketing DMAA as a dietary supplement are exploiting lax regulations and potentially putting consumers at risk.

Under United States law, dietary supplements are defined as products containing only supplemental dietary ingredients, like vitamins or minerals, and do not need F.D.A. approval before they are sold.

“How is this possibly being legally sold under the current rules for dietary supplements?” said Travis Tygart, the chief executive of the United States Anti-Doping Agency and an advocate for tighter regulation of supplements.

Last summer, a 22-year-old soldier collapsed at an Army base in the Southwest during a training run with his unit. Last fall, a 32-year-old soldier at the same base also collapsed after taking a physical fitness test. DMAA was identified in both soldiers’ toxicology reports, the Army spokesman said, but he declined to identify them.

Mr. Tygart said the issues raised by DMAA reminded him of the case of ephedra, another stimulant. The F.D.A. banned ephedra as a dietary supplement in 2004 after the deaths of several prominent athletes, including Steven S. Bechler, a pitcher for the Baltimore Orioles, who had used the substance.

USPlabs is run by Jacobo E. Geissler, who, according to the company’s Web site, studied nutrition at Texas A&M. In 2003 , before he started USPlabs, Mr. Geissler was criminally charged in Texas with buying illegal steroids, according to court records . He pleaded no contest and served a term of community service.

Many fitness enthusiasts remain devoted to Jack3d, which, according to a widely disseminated online product description, “gives you the mad aggressive desire and ability to lift more weight, pump out more reps and have crazy lasting energy.”

Some of its users raved about the product last week on Twitter. “Jack3d got me feeling beastly! Gym time!! #beastmode,” Luis Vasquez wrote.

Last summer, the United States Anti-Doping Agency issued a warning notice about DMAA to athletes, but Mr. Tygart said he worried about ordinary consumers.

“As long as it is not being removed from stores, we’ve got to ensure, as we have with our athletes, that consumers are aware of this issue and are making informed, reasoned decisions,” Mr. Tygart said.
 
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Re: Jack3d and OxyElite Pro

"“Unfortunately, what we have now is pharmacological levels of an amphetamine derivative easily available,”"

"DMAA is a stimulant similar to amphetamine, said Edward Wyszumiala,"

20110315_patrickarnoldblog.jpg


Patrick Arnold Methylhexanamine (Geranamine) Misinformation
 
Re: Jack3d and OxyElite Pro

"“Unfortunately, what we have now is pharmacological levels of an amphetamine derivative easily available,”"

"DMAA is a stimulant similar to amphetamine, said Edward Wyszumiala,"

20110315_patrickarnoldblog.jpg


Patrick Arnold ? Methylhexanamine (Geranamine) Misinformation

So is dmaa really a legal dshea supplement? Is it in naturally-occurring in geranium oil or not?

It made its entry into the supplement market in 2005 after the discovery of literature published in China that demonstrated it to be present in Geranium Oil (at least the variety of Geranium Oil produced in that region of China).

I've read that that obscure Chinese paper's finding has not been replicated.
 
Re: Jack3d and OxyElite Pro

[Also, see: https://thinksteroids.com/community/threads/134319972 ]


DMAA as a Dietary Supplement Ingredient

For DMAA to be legally sold as a dietary supplement, it must be a naturally occurring substance with a documented history of use prior to 1994. Remarkably, the evidence to support the sale of DMAA-containing supplements hinges on a single study. In this 1 study, published in the now defunct Journal of the Guizhou Institute of Technology, geranium oil (extracted from the fresh leaves and stems of Pelargonium graveolens) was found to contain less than 0.7% DMAA based on a gas chromatography and mass spectrometry analysis. The researchers do not describe their methodology but presumably based their conclusions on matching an unknown peak spectrum of geranium oil with the library mass spectrum of DMAA. The appropriate confirmatory test, using a standardized preparation of DMAA to confirm its presence, was not described.

Since the publication of this study, more than a half-dozen peer-reviewed reports have been unable to confirm this finding. Health Canada, for one, has concluded that "there is no credible scientific evidence that DMAA is captured as an isolate of a plant." This lack of evidence has not deterred multiple supplement companies from marketing DMAA as if it were isolated from geranium. For example, the popular Jack3d product (USPlabs) sold at GNC (General Nutrition Centers) is labeled as containing "1,3-dimethylamylamine (Geranium [Stem])" (label available from the author on request).

Given its wide availability, physicians should understand DMAA's potential health effects. Supplements containing DMAA have been implicated as potentially contributing agents in multiple serious adverse events, including panic attacks, seizures, stress-induced cardiomyopathy, and 2 deaths. In Europe and New Zealand, DMAA use as a party drug has been implicated in at least 1 hemorrhagic stroke. Causality has yet to be proven, but these adverse effects are consistent with DMAA's known pharmacologic actions. In The Dispensatory of the United States of America 1950 Edition, DMAA's systemic toxic effects in animals was described as "greater than that of ephedrine and less than that of amphetamine," and the authors counseled that if DMAA's use as a nasal inhaler "produces side effects such as headache, nervousness, mental stimulation, or tremors, the drug should be discontinued." Small trials have also demonstrated that DMAA-containing supplements increase blood pressure and heart rate.

Last summer, Health Canada banned DMAA from all supplements, and last December, the US military removed DMAA-containing supplements from all military exchanges worldwide. As of March 2012, the US Food and Drug Administration (FDA) had yet to act. Given that DMAA is a potentially dangerous ingredient and that manufacturers' claims that it is naturally derived are unsubstantiated, manufacturers and distributors should immediately recall all DMAA-containing supplements. Without delay, the FDA should clarify its position on DMAA and aggressively prosecute all violations of the law.

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Table. List of DMAA-Containing Supplements Withdrawn From All Military Exchanges as of December 7, 2011


Cohen PA. DMAA as a Dietary Supplement Ingredient. Arch Intern Med:archinternmed.2012.1677. Arch Intern Med -- DMAA as a Dietary Supplement Ingredient, May 7, 2012, Cohen 0 (2012): archinternmed.2012.1677v1
 

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Re: Jack3d and OxyElite Pro

"“Unfortunately, what we have now is pharmacological levels of an amphetamine derivative easily available,”"

"DMAA is a stimulant similar to amphetamine, said Edward Wyszumiala,"

20110315_patrickarnoldblog.jpg
So is dmaa really a legal dshea supplement? Is it in naturally-occurring in geranium oil or not?

I've read that that obscure Chinese paper's finding has not been replicated.
If it really is naturally occurring, I don't know of the evidence.

On the claims made by some "that's nothing like amphetamine, just look!" that is I think disingenuous. Yes, at a casual glance perhaps no relationship is obvious, but if the comment is a professional one:

First, we see that both amphetamine and ephedrine have a nitrogen that is separated from a ring structure by 2 carbons (shown as points in the zig-zag: a carbon atom is at each point where the line changes direction, or where a line ends.)

While DMAA doesn't have a ring structure, it does have 4 carbons corresponding to 4 of the 6 carbons of those rings. It is possible in some instances for chains like this to be fit into the same receptor sites that a ring can.

Ephedrine has an OH group that DMAA doesn't, but that's obviously unnecessary, as amphetamine doesn't have it.

Amphetamine has an additional carbon sticking off of the 2nd carbon from the ring (shown as a stick extending from the zig-zag.) So does DMAA.

Just complete the ring, and you'd have the same structure. So, they are very similar.

I spotted this way back instantly when first asked about it when the product first came out and called it an amphetamine analog (in private discussion)... what, that's wrong and it's a coincidence that it feels and works rather like ephedrine or like amphetamine?
 
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Re: Jack3d and OxyElite Pro

this by Patrick Arnold was interesting.
"the stuff ought not be out there." "its dangerous material"
from the above. "... pharmalogical levels of an amphetamine derivative" is inacurate. if its a derivative its already illegal.
"dmaa is a stimulant similar to amphetamine." not from what i understand.
these are disingenous. dmaa is not an analog of amphetamine. structurally similar i guess can be argued. and so can the effect. caffeine gives similar effects. analog laws have already been rewritten to try to avoid these problems.
get them out of the dietary supplement and go get some ephedrine.
enough with the dumb names and loose conections or just outright from actual drugs.
 
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Re: Jack3d and OxyElite Pro

[ame=http://en.wikipedia.org/wiki/Federal_Analog_Act]Federal Analog Act - Wikipedia, the free encyclopedia[/ame]

these become moot points as time goes on since some drugs that work in the same way are not covered here.
it seems be the same for steroids too but even better because this only covers schedule 1 and 2. steroids are 3.
 
Re: Jack3d and OxyElite Pro

By definition in medicinal chemistry:

A "derivative" is a substance with pharmacological effect, or intended pharmacological effect, which can be made by chemical reactions performed on the reference material. (Even if there are easier ways.)

For example, methyltestosterone is a derivative of testosterone.

An "analog" is a substance with pharmacological effect, or intended pharmacological effect, which has structural similarity to a reference material having that activity, but must be synthesized from a different starting point as the structural differences exceed simply having something added or removed by possible reactions.

Not to be pedantic, but that's why I referred to it as an analog. It wasn't as legalese with reference to the CSA.
 
Re: Jack3d and OxyElite Pro

By definition in medicinal chemistry:

A "derivative" is a substance with pharmacological effect, or intended pharmacological effect, which can be made by chemical reactions performed on the reference material. (Even if there are easier ways.)

For example, methyltestosterone is a derivative of testosterone.

An "analog" is a substance with pharmacological effect, or intended pharmacological effect, which has structural similarity to a reference material having that activity, but must be synthesized from a different starting point as the structural differences exceed simply having something added or removed by possible reactions.

Not to be pedantic, but that's why I referred to it as an analog. It wasn't as legalese with reference to the CSA.

i understand. its not a direct criticism of what youre saying. maybe a symptom of a bigger problem. that i think we can agree on.
the rest ill leave to the real chemists or experts in chemistry, like yourself, and the lawyers. both of which seem to be a language all their own.
and i still say get them out of the dietary supplements and sell them differently. especially new and unknown drugs.
 
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Re: Jack3d and OxyElite Pro

I have a bottle of Oxyelite and is sucks so bad. Nothing made me feel like shit like this product. Felt like I was having a heart attack and food wouldn't go down at all.
 
Re: Jack3d and OxyElite Pro

Stimulant Marketed as 'Natural' in Sports Supplement Actually of Synthetic Origin, Study Suggests
Stimulant marketed as 'natural' in sports supplement actually of synthetic origin, study suggests

ScienceDaily (July 12, 2012) — A new study published in the journal Drug Testing and Analysis found that DMAA, a stimulant often found in many nutritional and sports supplements, does not originate from natural substances and is actually composed of synthetic compounds.
 
Re: Jack3d and OxyElite Pro

Dimethylamylamine - DMAA

GNC and Vitamin Shoppe Shouldn't Rely on Flower Power
GNC and Vitamin Shoppe Shouldn't Rely on Flower Power - WSJ.com

July 15, 2012
By JUSTIN LAHART

GNC Holdings and Vitamin Shoppe aren't pharmaceutical firms, but a chunk of their future revenue could depend as much on the opinions of scientists as on the views of shoppers perusing their shelves.

Dimethylamylamine, or DMAA, is a key ingredient in supplements used by weightlifters looking to amp up before working out and dieters trying to curb their appetites. But it has raised health concerns. The Defense Department pulled supplements containing DMAA from military base shelves last year on concerns it played a role in two soldiers' deaths. The Food and Drug Administration in April warned supplement makers and suppliers using DMAA that they hadn't shown that it is safe.

Some retailers have stopped selling products that contain DMAA, but both GNC and Vitamins Shoppe continue to offer them. GNC points out that it doesn't manufacture private label products that include DMAA, and that the DMAA-containing products it sells "are widely available at other retailer outlets." Vitamin Shoppe didn't respond to requests for comment but has previously said that if the FDA requires it to recall a product it will "promptly comply."

DMAA use in supplements relies on a 1996 study in the now-defunct Journal of the Guizhou Institute of Technology, which said it found DMAA in a type of geranium. On that basis, supplement makers marketed the ingredient as naturally-occurring.

But others, including chemists at Australia's National Measurement Institute and at NSF International, a nonprofit organization in Ann Arbor, Mich. that certifies supplements' safety, have failed to find DMAA in geranium. In June, a study in the peer-reviewed Journal of Analytical Toxicology by a University of Mississippi led-team that included researchers at the U.S. Anti-Doping Agency found no DMAA in a variety of geranium samples. On Thursday, a study in the peer-reviewed journal Drug Testing and Analysis led by University of Texas at Arlington chemist Daniel Armstrong similarly described how tests detected no DMAA in eight geranium oil samples from different regions. The limit of detection was 10 parts per billion.

Absent evidence that DMAA exists in geranium, its time on store shelves could be short, says Marc Ullman, a specialist in FDA law with Ullman, Shapiro & Ullman. "If the substance is not found in nature at all, that's very significant because there's little statutory basis for saying this is a viable dietary ingredient," he says.

Some manufacturers stopped making supplements containing DMAA after the FDA's warning, but Dallas-based USPlabs still includes it in its popular Jack3d product. USPlabs says that an earlier version of the University of Texas study showed that there were, in fact, trace amounts of DMAA found in two geranium samples, and that the study's supporting materials back that up. It also says that forthcoming research will confirm DMAA's presence in the plant.

Mr. Armstrong says that those earlier, unpublished results were due to lab instrument contamination, and that Drug Testing and Analysis mistakenly put old supporting materials for the paper online.

The stakes are high. While neither GNC nor the Vitamin Shoppe disclose sales of supplements containing DMAA, both have noted in securities filings that they are top selling products. Whether or not the chemical is proved to be "natural" could yet cause reaction in the companies' share prices.
 
Re: Jack3d and OxyElite Pro

Its funny I see this one here today as I was despirately searching for an amphetamine replacement last night :eek:[:o)]:rolleyes:. I know those that have taken the DMAA and it will def light you up.../ I think its more similar in feel to ephedrine than amphetamines. And of course the ephedrine having the fat unlocking potential whereas amphetamines just work on the appetite. I think this should also be noted as a primany difference in feeling. Because I recall back many years ago when Ripped Fuel first hit the market and noting how the next morning I would wake up feeling like have been working out on a farm or something the day prior - LOL. Just physically beat too...!!!

ONE POINT. I noted that the diet supp you mentioned up there (which has DMAA) also has a very refined form of Yohimbe. And apparently not all yohimbe's are created equall. I once read years back that there is some kind of "death comb0" when you combine caffine, amphetamines or ephedrine, and yohimbe. Due to the confusion with the neuropaths. The link I am attaching kinda sums that up in that it states yohimbe is an alpha blocker, and yet it does nothing to Beta paths (I think), or perhaps its that it only affects alpha one or neglects beta 2 etc. I dont know and not technical enought. So the point being that with these type products - You are revving up one system and shutting the other down at the same time. The shut down from the Yohimbe is apparently limited in duration and perhaps further causing biological confusion in action.?!
So the point is that you are not just firing one system up with this supp, you are turning the other off and to the negative at the same time. That is not quite the same as just trying to mitigate or stimulate only one path..

Also in my recent review of supplements. I keep stumbling accross the one publication that appears to be a "Safety & Data Sheet" produced by I dont know who. Does anyone have any comments on the ligitimacy of these publications and the author?
http://datasheets.scbt.com/sc-200151.pdf

But essentially they are labeling these substances as "Hazzardous Materials" in these publications.
 
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Re: Jack3d and OxyElite Pro

Stimulant Marketed as 'Natural' in Sports Supplement Actually of Synthetic Origin, Study Suggests
Stimulant marketed as 'natural' in sports supplement actually of synthetic origin, study suggests


Zhang Y, Woods RM, Breitbach ZS, Armstrong DW. 1,3-Dimethylamylamine (DMAA) in supplements and geranium products: natural or synthetic? Drug Testing and Analysis. 1,3-Dimethylamylamine (DMAA) in supplements and geranium products: natural or synthetic? - Zhang - 2012 - Drug Testing and Analysis - Wiley Online Library

1,3-Dimethylamylamine (DMAA) is a stimulant existing in various pre-workout supplements and often labelled as part of geranium plants. The safety and origin of DMAA in these supplements is the subject of intense debate. In this study, the enantiomeric and diastereomeric ratios of two different known synthetic DMAA compounds, as well as the total concentrations of DMAA and its stereoisomeric ratios in 13 different supplements, were determined by gas chromatography. The stereoisomeric ratios of DMAA in the synthetic standards and in all the commercial supplements were indistinguishable. Eight different commercial geranium extracts of different geographical origins (China and the Middle East) were examined for the presence of DMAA by high performance liquid chromatography coupled with mass spectrometry (HPLC-MS). No DMAA was detected in any of the eight geranium products with a limit of detection of 10 parts per billion (w/w).
 
Re: Jack3d and OxyElite Pro

I forgot about this thread as I had recently been ranting in other threads about my recent experience with these products. AGAIN, and in case I have not made clear my thoughts here. DMAA IMHO does not resemble Ephedrine or Amphetamines in action. I really dont see it. And I am sure if it did, it would contain the same amount of DMAA equivalent to one of the old gas station size 25mg doses of ephedrine. Keep in mind I have just now tried the jacked for the first time, so the formula may already be changing. But IT IS my intent to order some straight up DMAA for testing. I will let you know... The military guys had to be taking some other stuff TOO. Plain and simple. I know I probably would have been if in that life..

Regarding the OXY Elite. that shit flat out scares the shit out of me. I recently posted on some MX-SR7(or whatever the fuck they call it). What a fucking nightmare..! They have everything but the kitchen sink in these. Still, I dont even start to comprehend the combination of Yohimbe with beta agonists. Makes no sense but a quick cardiac anomaly. Are these being manufacured by terrorists.. LOL.. But really. Whatever fat releasing potentialtion is achieved by Yohimbe is just not worth the pain. I once combined Yohimbe with amphetamines back around 2007, and all I can say it that my heart felt some great DISTRESS.. ALL DAY. Whats worse is there are about 4 or 5 other "herbs" or sythetic derivatives that they are combining in these products (mostly as beta agonists) that are pretty dangerous. One of which is this concoction they are deriving from Green Tea. I am not sure the technical name, but it is touted as having an 8 hour half-life.. I first ran into this one back in 2008 when loading up on an Arizona brand Green tea. I freaking felt like a mac truck parked on my chest. THIS ONE SHOULD NOT BE UNDERSTATED. While I have found the jacked product as little more than the greatest creatine delivery product in years. The diet aids never fail to leave me in about 8-10 hours of PURE PHYSICAL DURESS...!

Do supplements need FDA focus to some degree - Hell yes. I could not imagine being any older and any more out of shape and taking one of the ones like I took the other day.. While I have not tried Oxy-Elite, The ingredients appear similar. I dont understand the logic of just packing every freaking chemical that can be concocted into a capsule, and gaining public appeal. And the advertising of the ripped bastards on the labels is nothing more than misleading banther. Simply put, these models are taking Clen if anything hard to achieve the goals. And Clen I speculate is a far cry safer when taken in proper dosing. I have experience with abluteral inhalers for asthma, and the experience is clean and pain free - unlike these supps which are a NIGHTMARE WAKING... I have no doubt that ER visits after consuming these supps are off the charts today...

I hope the folks at Jacked dont bite the bullet for this backlash, as I have found their product pure, clean, and effective. Whatever happened to a bit of ephedrine, caffine, and asprin?!?!? This is going to yield a far better effect I speculate that any of this diet shit available. And without the risk of the random interaction with the components having the different active lives, the combinations, all that crap. What are palpitations as related to current diet supps?. With regard to these, they are most likely timing intervals of the poorly devised active lives of the ingredients involved... Aint no white cross ever caused the biological hazzard inherent to these either. The effect is pure, its clearly understandable in physical FEELING and ACTION, and one knows if they are hyped up or not. These a like just spinning a wheel and waiting to see what falls out... Ephedrine should have never been removed from the market as this crap may have never manifested... Just my HO...
 
Re: Jack3d and OxyElite Pro

USPlabs-funded study claims to ‘confirm presence of DMAA in Chinese geranium'
USPlabs-funded study claims to ‘confirm presence of DMAA in Chinese geranium'


Li JS, Chen M, Li ZC. Identification and Quantification of Dimethylamylamine in Geranium by Liquid Chromatography Tandem Mass Spectrometry. Analytical Chemistry Insights;7(3297-ACI-Identification-and-Quantification-of-Dimethylamylamine-in-Geranium-by-.pdf) 2012:47. Identification and Quantification of Dimethylamylamine in Geranium by

A sensitive and reliable method of liquid chromatography–electrospray ionization/tandem mass spectrometry (LC-ESI/MS/MS) was developed and validated for determining 1,3-dimethylamylamine (1,3-DMAA) and 1,4-dimethylamylamine (1,4-DMAA) in geranium plants (Pelargonium graveolens). The sample was extracted with 0.5 M HCl and purified by liquid-liquid partition with hexane. The parameters for reverse-phase (C18) LC and positive ESI/MS/MS were optimized. The matrix effect, specificity, linearity, precision, accuracy and reproducibility of the method were determined and evaluated. The method was linear over a range of 0.10-10.00 ng/mL examined, with R2 of 0.99 for both 1,3-DMAA and 1,4-DMAA. The recoveries from spiked concentrations between 5.00-40.00 ng/g were 85.1%-104.9% for 1,3-DMAA, with relative standard deviation (RSD) of 2.9%-11.0%, and 82.9%-101.8% for 1,4-DMAA, with RSD of 3.2%-11.7%. The instrument detection limit was 1-2 pg for both DMAAs. The quantification limit was estimated to be 1-2 ng/g for the plant sample. This method was successfully applied to the quantitative determination of 1,3- and 1,4-DMAA in both geranium plant and geranium oil.

Funding - This research was financially supported by USPlabs LLC.
 
Re: Jack3d and OxyElite Pro

Yes, it was funded by USP (and really involved only 2 sets of researchers) but the studies were objective and, IMO relatively unbiased. The journals the articles were published in looked to be well vetted.

The bottom line is that DMAA is safe if used as suggested. What the above articles don't tell you is that the negative consequences were from abuse. Users were taking more than 20 times the recommended dosage, mixing it with alcohol, and compounding heat related dehydration.

Lets look at some other medical studies on DMAA containing products:

The first five of the following studies involve products that contain DMAA. The 6th & 7th involve DMAA by itself and also in conjunction with caffeine (a common synergistic combination).

Study #1:

In a randomized, double-blind, trial with crossover, OxyElite Pro at a dose of two capsules (the recommended dosage) was shown to increase markers of lipolysis (fat breakdown) and energy expenditure (metabolic rate) over 120 minutes, in a group of six healthy men and six healthy women, all of whom were exercise-trained individuals.

Specifically, for the markers of lipolysis, glycerol’s area under the curve (AUC) values were obtained to look at the total change over the entire 120 minute period. This found that men’s average plasma glycerol levels were 31.47% higher when taking OxyElite Pro versus placebo, which was statistically significant. Women’s average plasma glycerol levels were 30.18% higher than those obtained when taking a placebo, which was statistically significant. Regarding free fatty acids (FFA), another marker of lipolysis, the average value for men taking OxyElite Pro was 169.23% greater than taking placebo which was statistically significant. For women, the average FFA value was 60.64% higher taking OxyElite Pro versus placebo which was statistically significant. For metabolic rate, the average value for men was 12.06% higher taking OxyElite Pro versus placebo which was statistically significant. For women, average metabolic rate was 35.64% higher taking OxyElite Pro versus placebo which was statistically significant. No serious adverse events were recorded. Some of these subjects who consumed two capsules, experienced noticeable stimulation.

These data show that by increasing lipolysis and metabolic rate, the DMAA-containing OxyElite Pro may allow for reduced fat mass and weight loss.

A Finished Dietary Supplement Stimulates Lipolysis and Metabolic Rate

PDF for download

Study #2:

In a randomized, double-blind, placebo-controlled trial, OxyElite Pro, used in accordance with the labeled directions for use and warnings, was studied to see if it could improve body composition in healthy men and women over an eight-week period of use. A group of 32 exercise-trained men and women participated in the study. When utilizing a paired t-test, comparing baseline values with those after eight weeks of use, subjects in the OxyElite Pro group were found to have decreased body weight, BMI, waist size, waist to hip ratio, total body fat percentage, fat mass ,and appetite, all of which was statistically significant. Those taking the placebo experienced no statistically significant change in any of these variables.

Safety of the DMAA-containing product was also assessed via hemodynamic and metabolic variables. While OxyElite did increase heart rate by an average of six beats per minute (comparable to the effect seen in some studies after the administration of caffeine dosages equivalent to 2 or 3 cups of coffee as reported in the scientific literature), no statistically significant changes in blood pressure were noted when comparing the values seen at baseline to those after eight weeks of use. Liver and kidney function were not affected as shown by various blood borne markers. The supplement was well-tolerated and no serious adverse events were noted. Some of these subjects who consumed two capsules, experienced noticeable stimulation.

In looking at the product’s efficacy, the subjects average weight loss over 8 weeks of OxyElite Pro use was approximately 4.18 lb, a statistically significant change from baseline. The placebo group, meanwhile lost 1.32 lb over 8 weeks and this was not statistically significant. Waist size in the OxyElite Pro group decreased by an average of 2.6 cm or about 1.02 inches, a statistically significant change from baseline. The placebo group, however, lost 0.7 cm or about .28 inches, a non-statistically significant change. Hip size did not change in either the OxyElite Pro or placebo group. However, because of this, it was noted that the waist:hip ratio declined by average of 2.47% in those taking OxyElite Pro, which was statistically significant compared to baseline. In those taking placebo, an average decline of 1.25% occurred, which was not statistically significant. Total body fat in the OxyElite Pro group decreased by an average of one full percentage point, a statistically significance change from baseline. The placebo group, however, experienced a decrease in total body fat percentage of 0.1, which was not statistically significant. Total fat mass decreased by an average of approximately 2.64 lb in the OxyElite Pro group, a statistically significant change from baseline. The placebo group, however, lost 0.44 lb, which was not statistically significant.

When subjects were asked to rate their appetite on a scale of 1-10 from baseline until week eight of the study, they reported an average decrease in appetite scores of approximately 24% after using OxyElite Pro, a statistically significant change. However, those taking placebo experienced a 5% reduction in appetite, which was not statistically significant.

Overall, this eight-week study corroborated what the previous acute study showed, which is that by increasing lipolysis and metabolic rate, OxyElite Pro is able to reduce fat mass in healthy men and women.

Biochemical and Anthropometric Effects of a Weight Loss Dietary Supple

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Study #3:

In an open-label, single-arm trial consisting of seven healthy men, each was instructed to consume the DMAA-containing Jack3d, in accordance with the labeled directions for use and warnings, each day for two weeks. At the beginning and end of the study, blood pressure, heart rate, and various indicators of renal and liver function were assessed. The study found that there were no statistically significant changes from baseline to the end of the study. Jack3d, which contains DMAA, was well tolerated and no serious adverse events were noted.

The hemodynamic response to acute ingestion was assessed as well for this DMAA product. Although small and transient changes in blood pressure were noted, these changes were not statistically significant and were consistent with changes reported in the scientific literature after consumption of the equivalent of 2-3 cups of coffee.

Hemodynamic and Hematologic Profile of Healthy Adults Ingesting Dietar

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Study #4:

In an open-label, single-arm trial consisting of four men and two women, subjects were instructed to consume OxyElite Pro, in accordance with the labeled directions for use and warnings, each day for two weeks. At the beginning and end of the study, blood pressure, heart rate and various indicators of renal and liver function were assessed. The study found that there were no statistically significant changes from baseline to the end of the study. No serious adverse events were noted.

The hemodynamic response to acute ingestion was assessed as well. OxyElite Pro did not result in a statistically significant change in heart rate or diastolic pressure, but did cause a statistically significant change in systolic blood pressure from baseline. This increase was mild and transient, and was similar to the changes reported in the scientific literature for subjects ingesting an amount of caffeine equivalent to 2-3 cups of coffee.

Hemodynamic and Hematologic Profile of Healthy Adults Ingesting Dietar

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Study #5:

In a randomized, double-blind, placebo-controlled trial consisting of 25 healthy, exercise-trained men, subjects consumed Jack3d™ in accordance with the labeled directions for use and warnings or a placebo for ten weeks. When comparing baseline values with those after 10 weeks of consumption, no statistically significant change in heart rate, blood pressure, liver or kidney function were noted compared to placebo. Jack3d™ was well tolerated with no serious adverse effects noted.

Pending Publication

Study # 6:

In this randomized, double-blind, crossover trial, conducted by an independent scientist without involvement of the company, 10 healthy, exercise-trained men and women were given varying amounts of DMAA, caffeine, and DMAA/caffeine in a single serving and then had their heart rate and blood pressure evaluated. Regarding DMAA alone, a 50 mg dose resulted in no significant change in heart rate, while a small change in systolic blood pressure was noted. This change was not statistically different than the changes reported in the scientific literature for an amount of caffeine equivalent to 2-3 cups of coffee. At the highest dose of DMAA tested, systolic blood pressure did increase to a statistically greater degree than that seen with caffeine (250 mg) alone. This dose is 25% greater than the maximum amount consumed under the label directions for use and warnings for Jack3d and OxyElite Pro. No serious adverse events were noted in this study.

https://physsportsmed.org/doi/10.3810/psm.2011.09.1927

Study #7:

In this randomized, double-blind, crossover trial, conducted by an independent scientist without involvement of the company, 12 healthy, exercise-trained men and women were given varying amounts of DMAA, DMAA/caffeine or caffeine prior to a 10 km run. No statistically significant difference was found when comparing DMAA to placebo when evaluating average heart rate, mood or perceived exertion. Hemodynamic variables were assessed after exercise and no statistically significant difference was found when comparing the values obtained with consumption of DMAA versus caffeine. No serious adverse events were noted in this study.

Effect of Caffeine and 1,3-Dimethylamylamine on Exercise Performance and Blood Markers of Lipolysis and Oxidative Stress in Trained Men and Women | Abstract


Reference section

1: McCarthy CG, Farney TM, Canale RE et al. A Finished Dietary Supplement Stimulates Lipolysis and Metabolic Rate in Young Men and Women. Nutrition and Metabolic Insights 2012:5 23-31
2: McCarthy CG, Canale RE, Alleman Jr. RJ et al. Biochemical and Anthropometric Effects of a Weight Loss Dietary Supplement in Healthy Men and Women. Nutrition and Metabolic Insights2012:5 13-22
3: Farney TM, McCarthy, CG, Canale RE et al. Hemodynamic and Hematologic Profile of Healthy Adults Ingesting Dietary Supplements Containing 1,3-Dimethylamylamine and Caffeine. Nutrition and Metabolic Insights2012:5 1-12
4: Farney TM, McCarthy, CG, Canale RE et al. Hemodynamic and Hematologic Profile of Healthy Adults Ingesting Dietary Supplements Containing 1,3-Dimethylamylamine and Caffeine. Nutrition and Metabolic Insights2012:5 1-12
5: Bloomer RJ, Schilling BK, Whitehead PN et al. Safety profile of a dietary supplement containing 1,3-dimethylamylamine: a 10-week intervention study. Nutrition and Metabolic Insights (In Press).
6: Bloomer RJ, Harvey IC, Farney TM et al. Effects of 1,3-dimethylamylamine and caffeine alone or in combination on heart rate and blood pressure in healthy men and women. Phys Sportsmed. 2011 Oct;39(3):111-120
7: Bloomer RJ, McCarthy CG, Farney TM et al. Effect of caffeine and 1,3-dimethylamylamine on exercise performance and blood markers of lipolysis and oxidative stress in trained men and women. J Caffeine Res (In Press).
 
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Re: Jack3d and OxyElite Pro

Lorenzo CD, Moro E, Santos AD, Uberti F, Restani P. Could 1,3 dimethylamylamine (DMAA) in food supplements have a natural origin? Drug Testing and Analysis. Could 1,3 dimethylamylamine (DMAA) in food supplements have a natural origin? - Lorenzo - 2012 - Drug Testing and Analysis - Wiley Online Library

1,3 dimethylamylamine or methylexaneamine (DMAA) is a synthetic pharmaceutical patented in the 1940s as a nasal decongestant which can be used as a recreational stimulant. Alleged to occur in nature, DMAA has become a widely used ingredient in sports food supplements, despite its status as a doping agent and concerns over its safety. There is now some doubt as to whether it can be sourced naturally or whether it actually occurs naturally at all. The presence of DMAA was investigated by high performance liquid chromatography (HPLC) in extracts of the leaves and stems of four geranium species and of three well-known cultivars. The amounts of DMAA in commercial geranium (Pelargonium graveolens) oil and the leading sports supplement which uses the ingredient were also measured. DMAA was not found in any of the leaves or stems or in the commercial geranium oil included in this study. Approximately 30 mg per daily dose was found in the food supplement. Therefore, the amount of DMAA found in the supplement is most unlikely to have been sourced in nature, and it must be concluded that synthetic DMAA, known to be capable of causing severe adverse physiological effects, has been added.
 
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