DHEA and Pregnenolone

Our review of the scientific literature decades ago indicated that when used appropriately, these bioidentical hormones may slow the onset of multiple degenerative diseases and sustain optimal cognitive function in maturing individuals.

Since then, an armada of published studies has validated our position. Just last year, there were 380 newly published papers about DHEA.1

This wealth of incontrovertible medical evidence has not stopped the government from erecting regulatory barriers that would deny you the ability to replenish DHEA and pregnenolone to youthful levels.

The latest governmental assault comes out of California. The sale of DHEA and pregnenolone is now illegal unless accompanied by a fear-mongering, scientifically baseless warning label.

We think the State of California should have consulted enlightened, reputable scientists before imposing such onerous statutory burdens. In this instance, this legislative mandate only serves to misinform and frighten the public about the health-promoting properties of hormones made by our own bodies.

Once again, it is time to set the record straight regarding the medically established benefits of DHEA and pregnenolone.

The infinite wisdom of elected lawmakers in California has spawned a questionable dictate. While few if any of these legislators have any direct experience with DHEA or pregnenolone, they nonetheless have issued a decree that all labels must carry a warning. The warning is so strong that novices who read these labels will fear DHEA and pregnenolone and not use them. That’s too bad since hard science substantiates both the safety and efficacy of these natural hormones.

Life Extension’s medical experts reviewed California’s label information, and our assessment of the peer-reviewed literature differs in certain important respects from the conclusions reached by State legislators.

The law, Section 110423(b) of the California Health and Safety Code, states, “The sale or distribution of dietary supplements containing steroid hormone precursors is prohibited unless the product label for the dietary supplements clearly, and conspicuously contains the following warning:

WARNING: NOT FOR USE BY INDIVIDUALS UNDER THE AGE OF 18 YEARS. DO NOT USE IF PREGNANT OR NURSING. Consult a physician or licensed qualified healthcare professional before using this product if you have, or have a family history of, breast cancer, prostate cancer, prostate enlargement, heart disease, low “good” cholesterol (HDL), or if you are using any other dietary supplement, prescription drug, or over-the-counter drug. Do not exceed recommended serving. Exceeding recommended serving may cause serious adverse health effects. Possible side effects include acne, hair loss, hair growth on the face (in women), aggressiveness, irritability, and increased levels of estrogen. Discontinue use and call a physician or licensed qualified healthcare professional immediately if you experience rapid heartbeat, dizziness, blurred vision, or other similar symptoms. KEEP OUT OF REACH OF CHILDREN.

Separate cautions for pregnenolone must now include the statements that: “Pregnenolone may affect levels of other hormones, such as progesterone, estrogen, testosterone, and/or DHEA. Do not take this product if you have a history of seizures. Do not take this product if you have breast cancer, prostate cancer, or other hormone-sensitive diseases.” And the caution for DHEA now must read, “Do not use DHEA if you are at risk for or have been diagnosed as having any type of hormonal cancer, such as prostate or breast cancer.”

The published literature on DHEA and pregnenolone as supplements paints a rather different picture.

Supplementation with DHEA and/or Pregnenolone—The Scientific Truth

Cancer Risk

The truth, as always, is more nuanced. Important work by Harvard urologist Abraham Morgentaler and others has revealed that low testosterone levels increase prostate cancer risk.2,3 Morgentaler himself has become a strong proponent of supplementation with testosterone in older men.3 He was also the lead researcher on a study demonstrating that DHEA supplementation in rats enhanced total testosterone levels without producing any deleterious changes in prostate tissue.4Both pregnenolone and DHEA are “parent” hormones of the sex hormones estrogen, progesterone, and testosterone. Taking pregnenolone or DHEA supplements, therefore, may indeed raise levels of those sex hormones; in fact, that is considered one of the desired effects. Mainstream physicians, however, continue to express concern about boosting sex hormone levels late in life, citing the theoretical risk of hormone-dependent malignancies such as breast and prostate cancers.

Similar theoretical risks apply for breast cancer. But no increased risk of breast cancer has been demonstrated in large studies of combinations of natural estradiol and progesterone (the natural products of DHEA and/or pregnenolone).5 Furthermore, natural progesterone alone may reduce cancer risk, again suggesting that boosting sex hormone levels with precursors such as DHEA and pregnenolone is safe.6 One recent animal study demonstrates a direct anti-cancer effect of DHEA in obese rats.7

To date, no study has convincingly shown an increase in human hormone-dependent cancer risk as a result of DHEA or pregnenolone supplementation.8 Naturally, any individual who is known to have cancer of any kind should consult with his/her physician when using any new supplement or medication.

Heart Disease or Low HDL

One of the most perplexing features of the California label requirement is the caution about a family history of heart disease or low high-density lipoprotein (HDL) cholesterol.

DHEA is in fact known to decrease cardiovascular risk factors by improving vascular remodeling in the face of high blood pressure, improving insulin sensitivity and reducing obesity, and increasing HDL levels. 9-12 No studies have been published demonstrating that pregnenolone raises any cardiovascular risk factors.

WHAT YOU NEED TO KNOW: ERRONEOUS REGULATION OF DHEA AND PREGNENOLONE
  • A California law requires strict labeling for two commonly used supplements, DHEA and pregnenolone.
  • Both have a longstanding track record of delaying or reversing multiple diseases of aging and cognitive impairment.
  • Both also have impeccable safety profiles, as attested by the experience of millions of users over more than a decade.
  • The label requirements reflect a concern about the theoretical risk of hormone-dependent cancers, despite a complete lack of peer-reviewed scientific evidence supporting this claim.
  • Other risks mentioned in the label do not even have a sensible theoretical basis, such as those for cardiovascular disease, visual disturbances, or vertigo.
  • As with all supplements and medications, prudence suggests careful monitoring of one’s state of health, discussion of any new symptoms with a healthcare provider, and discontinuation of any treatment that produces unwelcome effects.

Rapid Heartbeat, Dizziness, or Blurred Vision

There are no published, peer-reviewed articles suggesting that either DHEA or pregnenolone supplements are associated with rapid heartbeat, tachycardia, or atrial or ventricular fibrillation. In fact, men with atrial fibrillation were shown in one study to have abnormally low DHEA levels.13The California label requirement explicitly warns against continuing supplementation in the face of rapid heartbeat, dizziness, blurred vision, or other “similar symptoms.” This, like the general cardiovascular precaution, is mystifying in the face of the published literature.

Similarly, there is no published report of either DHEA or pregnenolone in association with any visual disturbance or glaucoma. Just two reports exist on age-related macular degeneration and DHEA levels. The older one suggests that higher DHEA levels might be associated with increased risk, but the more recent article demonstrates a protective effect of higher DHEA levels.14,15 And a single French study demonstrated that higher DHEA levels are associated with reduced risk of cataracts.16

Just one study, from 1998, shows in an animal study that pregnenolone produces an excitatory effect on nerve cells in the inner ear, where balance is maintained.17 This could produce a theoretical risk of dizziness or vertigo, but no report of such an effect in humans has been published.

WHAT IS DHEA?
Dehydroepiandrosterone (DHEA) is the most common adrenal steroid hormone in the body.25 It is naturally produced from cholesterol (as are all steroid hormones) in a variety of tissues, most notably the adrenal glands. DHEA is the “parent” hormone of both the androgens and the estrogens (male and female hormones, respectively).26Like the sex hormones themselves, natural levels of DHEA decline with advancing age. That decline creates an increased vulnerability to chronic illnesses such as the metabolic syndrome, osteoporosis, and cardiovascular disease.25 Low DHEA levels are also strongly associated with susceptibility to falls and fractures, and even with earlier death in men.27,28

DHEA has long been used as a natural supplement to restore blood levels to those found in younger adults. Levels of sex hormones rise beneficially during supplementation, while levels of stress-related cortisol drop.29,30 As a result, we typically see improvements in muscle strength and bone mineral density, with a reduction in body fat mass.31,32 Indeed, there is now substantial support for DHEA supplementation in adrenal insufficiency, hypopituitarism, osteoporosis, systemic lupus, depression and schizophrenia.33Importantly, DHEA supplementation in women aged 70-79 also improved sexual desire, arousal, activity, and satisfaction, while also improving menopausal symptoms in younger women.34,35

Perhaps the most impressive benefits of DHEA supplementation are in the realm of cognitive function. Both DHEA and pregnenolone are so-called “neurosteroids,” which protect brain cells from damage by both acute injury and chronic stimuli.36-38 Daily supplements of 25 mg DHEA can increase cognitive scores and prevent deterioration of scores for activities of daily living.39 And many studies have verified the importance of DHEA supplements for improving clarity of thinking and a general sense of well-being.25,26,37

Virilization

Because both DHEA and pregnenolone boost natural levels of testosterone as well as estrogen, there is some concern that women who take the supplements might express more masculine traits such as male pattern baldness, hair growth on the face, and aggressive behaviors. In practice, however, these effects appear infrequently and are mild and reversible when they do occur.18,19

A sensible recommendation for anyone taking DHEA or pregnenolone is to monitor oneself for any of these mild side effects, and to discontinue use or reduce dose if those effects outweigh the benefits of continued supplementation.

Seizure History

WHAT IS PREGNENOLONE?
Like DHEA, pregnenolone is a naturally produced steroid hormone that acts as a “parent” to a variety of other hormones, including the sex steroids and hormones vital for controlling blood mineral content and metabolism. Pregnenolone is also a potent neurosteroid, protecting brain cells from age-related damage and preserving their function.36 In fact, pregnenolone is being explored for use in acute management of brain injury and stroke.40,41

Normal brain tissue contains large amounts of pregnenolone, and animal studies reveal that the steroid enhances development of new brain cells.42,43 In humans, pregnenolone supplementation produces significant improvements in both depression and schizophrenia.44-47 And pregnenolone shows promise in mitigating memory loss and even some of the abnormal structural findings in Alzheimer’s disease.48-50

Pregnenolone also has calming, anti-stress effects in humans, attributed to its ability to modulate brain receptors for certain neurotransmitters. Remarkably, when used in conjunction with the common anti-anxiety drug diazepam (Valium®), pregnenolone reduced the sedative side effects without affecting the anti-anxiety effects.51

Summary

California’s warning label requirement significantly overstates any risks associated with DHEA and pregnenolone as supplements. Despite the dire wording on the required label, there remains no convincing evidence that either supplement, taken at recommended doses, increases cancer risks in humans.

The other risks mentioned in the required warning label either occur rarely or are reversible (hair growth), occur in well-defined populations who should avoid using the supplements (seizure patients), or have no credible basis in the peer-reviewed literature (cardiovascular risk, lipid disturbances, vision disturbances, dizziness).

On the other hand, millions of people worldwide have been using both supplements for more than two decades, during which time no serious adverse events have ever been reported in the world literature or in the FDA’s intense adverse event monitoring system.11

Readers should understand that the cautions on labels of DHEA and pregnenolone supplements reflect an “abundance of caution” on the part of the California rule-makers…or perhaps the wishes of pharmaceutical lobbyists who fear too many people are protecting themselves against age-related disease by maintaining youthful hormone balances.

The overwhelming evidence in the global, peer-reviewed literature suggests exactly the opposite, namely that these supplements are safe and effective when used as directed by health-conscious adults.

If you have any questions on the scientific content of this article, please call a Life Extension® Health Advisor at 1-866-864-3027.

WHAT GERMANY KNOWS THAT CALIFORNIA DOESN’T

Here is an example of a published abstract of a study on DHEA from a German scientific journal. Apparently, the authors at the Department Trauma Surgery, University Hospital of Essen in Germany know something that the California authorities don’t know. First of all, the study states that “DHEA…is free of major side effects….” Secondly, they point out that DHEA may be a significant therapy for trauma and that “several data demonstrate the beneficial effect of DHEA in situations of critical illness including trauma hemorrhage and sepsis. Accordingly DHEA improved the survival rate and clinical situation in several animal models of trauma hemorrhage and systemic inflammation.”

Dehydroepiandrosterone (DHEA): a steroid with multiple effects. Is there any possible option in the treatment of critical illness?52

Curr Med Chem. 2010;17(11):1039-47.

Oberbeck R, Kobbe P.

Department Trauma Surgery, University Hospital of Essen, Hufeland Str. 55, 45141 Essen, Germany. reineroberbeck@hotmail.com

Abstract

DHEA is the major circulating steroid in human blood and it is a central intermediate in the metabolic pathway of sex steroid hormone formation. Although the specific effect of DHEA is still unclear it was demonstrated that DHEA modulates several physiologic processes including metabolism and cardiovascular function. Furthermore, a profound immunomodulatory effect of DHEA was reported. Several data demonstrate the beneficial effect of DHEA in situations of critical illness including trauma hemorrhage and sepsis. Accordingly DHEA improved the survival rate and clinical situation in several animal models of trauma hemorrhage and systemic inflammation. This effect was paralleled by profound changes of immunologic parameters, organ function, and heat shock protein production. Therefore, it was claimed that DHEA may be a new alternative/additive in the treatment of trauma and sepsis. In line, DHEA is a frequently used drug in the field of anti-aging medicine, it is an over-the-counter drug in several countries, and it was reported that DHEA medication is free of major side effects. Therefore, DHEA could easily be used in a clinical trial investigating its effects in critical ill patients. This article reviews the reported effects of DHEA on the base of the literature with the specific focus on trauma and sepsis/critical illness including its clinical perspectives.

The above abstract is copyrighted and reprinted with permission from Bentham Science Publishers, Ltd.

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16. Defay R, Pinchinat S, Lumbroso S, Sultan C, Papoz L, Delcourt C. Relationships between hormonal status and cataract in french postmenopausal women: the POLA study. Ann Epidemiol. 2003 Oct;13(9):638-44.

17. Yamamoto T, Yamanaka T, Miyahara H, Matsunaga T. The neurosteroid pregnenolone sulfate excites medial vestibular nucleus neurons. Acta Otolaryngol Suppl. 1998;533:22-5.

18. Rommler A. Adrenopause and dehydroepiandrosterone: pharmacological therapy versus replacement therapy. Gynakol Geburtshilfliche Rundsch. 2003 Apr;43(2):79-90.

19. van Vollenhoven RF. Dehydroepiandrosterone for the treatment of systemic lupus erythematosus. Expert Opin Pharmacother. 2002 Jan;3(1):23-31.

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21. Reddy DS, Kulkarni SK. Proconvulsant effects of neurosteroids pregnenolone sulfate and dehydroepiandrosterone sulfate in mice. Eur J Pharmacol. 1998 Mar 12;345(1):55-9.

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29. Genazzani AR, Pluchino N, Begliuomini S, et al. Long-term low-dose oral administration of dehydroepiandrosterone modulates adrenal response to adrenocorticotropic hormone in early and late postmenopausal women. Gynecol Endocrinol. 2006 Nov;22(11):627-35.

30. Forsblad-d’Elia H, Carlsten H, Labrie F, Konttinen YT, Ohlsson C. Low serum levels of sex steroids are associated with disease characteristics in primary Sjogren’s syndrome; supplementation with dehydroepiandrosterone restores the concentrations. J Clin Endocrinol Metab. 2009 Jun;94(6):2044-51.

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40. Shirakawa H, Katsuki H, Kume T, Kaneko S, Akaike A. Pregnenolone sulphate attenuates AMPA cytotoxicity on rat cortical neurons. Eur J Neurosci. 2005 May;21(9):2329-35.

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44. Marx CE, Keefe RS, Buchanan RW, et al. Proof-of-concept trial with the neurosteroid pregnenolone targeting cognitive and negative symptoms in schizophrenia. Neuropsychopharmacology. 2009 Jul;34(8):1885-903.

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47. Ritsner MS, Gibel A, Shleifer T, et al. Pregnenolone and dehydroepiandrosterone as an adjunctive treatment in schizophrenia and schizoaffective disorder: an 8-week, double-blind, randomized, controlled, 2-center, parallel-group trial. J Clin Psychiatry. 2010 Oct;71(10):1351-62.

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50. Akan P, Kizildag S, Ormen M, Genc S, Oktem MA, Fadiloglu M. Pregnenolone protects the PC-12 cell line against amyloid beta peptide toxicity but its sulfate ester does not. Chem Biol Interact. 2009 Jan 15;177(1):65-70.

51. Meieran SE, Reus VI, Webster R, Shafton R, Wolkowitz OM. Chronic pregnenolone effects in normal humans: attenuation of benzodiazepine-induced sedation. Psychoneuroendocrinology. 2004 May;29(4):486-500.

52. Oberbeck R, Kobbe P. Dehydroepiandrosterone (DHEA): a steroid with multiple effects. Is there any possible option in the treatment of critical illness? Curr Med Chem. 2010;17(11):1039-47.

Written: By Julie Trevano

Article Source: http://www.lifeextension.com/Magazine/2011/7/State-of-California-Decrees-Strong-Warning-Labels-on-DHEA-and-Pregnenolone/Page-01

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