Administration of DHEA increases REM sleep
- 05-27-2006, 08:06 PM
Administration of DHEA increases REM sleep
Seems DHEA is gaining support, the more studies I read through.
DHEA administration increases rapid eye movement sleep and EEG power in the sigma frequency range
E. Friess, L. Trachsel, J. Guldner, T. Schier, A. Steiger and F. Holsboer
Max Planck Institute of Psychiatry, Department of Psychiatry, Munich, Germany.
Dehydroepi-androsterone (DHEA) exhibits various behavioral effects in mammals, at least one of which is enhancement of memory that appears to be mediated by an interaction with the gamma-aminobutyric acidA (GABAA) receptor complex. We investigated the effects of a single oral dose of DHEA (500 mg) on sleep stages, sleep stage-specific electroencephalogram (EEG) power spectra, and concurrent hormone secretion in 10 healthy young men. DHEA administration induced a significant (P < 0.05) increase in rapid eye movement (REM) sleep, whereas all other sleep variables remained unchanged compared with the placebo condition. Spectral analysis of five selected EEG bands revealed significantly (P < 0.05) enhanced EEG activity in the sigma frequency range during REM sleep in the first 2-h sleep period after DHEA administration. In contrast, the EEG power spectra of non-REM sleep were not affected, nor were the nocturnal time course curves of plasma cortisol, growth hormone, or testosterone concentration. The results suggest that DHEA administration has a mixed GABAA-agonistic/antagonistic effect, exerted either directly or through DHEA-induced changes in steroid metabolism. Because REM sleep has been implicated in memory storage, its augmentation in the present study suggests the potential clinical usefulness of DHEA in age-related dementia.PharmD
- 05-27-2006, 09:47 PM
First off, thanks - this is interesting.
I'm guessing, perhaps incorrectly, that the 500 mg dose was sometime immediately prior to bedtime (although it doesn't say that). If that is true, it would seem at odds against something I had heard previously; namely that DHEA should be taken in the AM to avoid a negative impact on sleep.
05-27-2006, 10:12 PM
Originally Posted by Beau
First off I just spent 20 minutes sifting through studies trying to find more of them that support the fact that DHEA increases REM sleep, however, every study I found referenced the study I just showed you, so it seems to be the only published study.
Secondly, I searched for the exact half life of oral DHEA. It actually absorbs pretty quickly an dthe half life ranged from 18-25 hours in the blood in the experiments.
That would mean that you wouldn't need to take it before bed and technically would make no difference if taken in the morning or at night.
I attached a graph from the study. Large increases in test even at only 50mg oral dose .
05-27-2006, 10:13 PM
Am I incorrect in believing that DHEA preferentially converts into estrogen?...meaning most (but not all) gets converted into various estrogens?
If so, then it would seem wise to couple it with some sort of AI.
This study is interesting in that it seems to indicate that DHEA use during times of studying or intense learning might be a good idea.
05-27-2006, 10:20 PM
05-27-2006, 10:21 PM
Haha yes I have been quite the loser today. No prob man. If I come across something later I will hit ya up though.Originally Posted by Beau
05-28-2006, 01:10 PM
I think it would be fascinating to see how DHEA could be used to counter excessive fatigue both mental and physical in normal adults. Try it from both regular dosing and to see how it affects energy levels and then large dose experiments ie 500mgs say in someone doing large amounts of mileage, long periods high output etc. Its estro capabilties could also be great for increased GH and Glyco recovery in certain sports if bodybuilding wasn't the primary focus.
My The 1 LOG: http://anabolicminds.com/forum/steroids/254164-my-one-log.html
05-28-2006, 01:17 PM
05-28-2006, 03:54 PM
Can you please repost the graphes with more pixels so it can read clearly.Originally Posted by LakeMountD
05-28-2006, 07:14 PM
Actually I couldnt . I only have limited space for attachments and thats all the space i had left was if i made it that big. Download it to your desktop, though, then magnify it with Windows Viewer.Originally Posted by Werewolf
05-29-2006, 02:40 AM
I am concerned about estrogen effects...years ago when I took andro I got bad sides and lumps under my nipples from the estrogen conversion. Now since DHEA is already a step closer to estrogen, I think there is considerable chance there could be even more conversion to estrogen.
05-29-2006, 04:52 AM
Originally Posted by ArnoldIsMyIdol
Try out various dosages to see how you respond and keep an anti-estrogen on hand – just in case.
I have been using dhea for years… love it.
05-29-2006, 06:09 AM
05-29-2006, 10:01 AM
I am attaching a picture, if you look at it you will see that DHEA is not closer to test. than andro is,it is one step back.Originally Posted by ArnoldIsMyIdol
05-29-2006, 10:52 AM
Dr. D had posted that he really wasn't concerned with DHEA's ability to aromitize to estrogen becuase something about the main metabolite (a 5-alpha something) couldn't react as well.
I'll see if I can find what he said and post it here.
05-29-2006, 10:54 AM
Haha I was just looking for that a minute ago. I actually read it somewhere else too, but was posting that picture up to show where DHEA is and how it makes its way to testosterone.Originally Posted by jmh80
05-29-2006, 10:54 AM
The DHEA and rem sleep connection concerns me for this very reason (the lack of studies). It makes me wonder who financed the original study and if there is a possible conflict of interest and biased results. If every other study that suggests this is simply referencing the same damn study, it appears to me that someone needs to replicate the experiment to see if it is valid. Its nice to see that the supp. (or at least us intelligent members) users are now focusing on the actual science and the data in such studies, but people have to understand how often these studies are negatively influenced by the interests of either study sponsors, the clinician's themselves, or their institution's vested interests.Originally Posted by LakeMountD
I am not sure how prevalent conflicts of interest and "biased" science is in Germany of present, but it is often atrocious in the US these days.
05-29-2006, 11:16 AM
Originally Posted by Scottyo
That is true, HOWEVER, it also makes sense that any respectable university more than likely wouldn't reference a source that they felt wasn't respected. And the fact that so many people cited it makes me feel a little better.
I think one of the reasons there aren't a lot of studies on it is because there isn't much need for it. There are better things out there for them to spend their money when looking to improve sleep.
05-29-2006, 11:38 AM
Man - it took me forever to find this! (Searching Dr. D and DHEA just brings about alot of posts where we say "Dr. D recommends DHEA" or some other crap. Bah!)
Originally Posted by DR.D
05-29-2006, 01:35 PM
Originally Posted by LakeMountD
I definetly agree with your second point. As to the first one, that is a tricky question. The study may have been done by an expert in the field from a highly respected university (and therefore is cited often), but this does not mean that researcher bias is absent. In the past 10 years alone there have been a number of very visible examples of "problematic science"...often caused by financial or other conflicts of interests. And these are just the known cases. Unfortunately science is often much less "objective" than we think. Just means that one study is never enough IMO.
05-29-2006, 01:39 PM
05-29-2006, 03:49 PM
I have taken anywhere from 50 -2000g a day.Originally Posted by ArnoldIsMyIdol
My average is 200 – 500mg
Some of the effects I have noticed are –
Increased libido – hard on 24/7 (even on tren)
Increased sense of well being
The ability to eat and sleep like total **** and maintain a decent condition
Mass gains at higher dosages.
It should be noted that I never go off of dhea.
I don’t use steroids much (I plan to change that) but when I do I notice no loss of gains when I come off.
Dhea makes the transition very smooth for me.
OR…. its all in my head.
05-29-2006, 04:03 PM
Cool pic on the pathways.
So I guess DHEA is easily absorbed by the liver? I remember reading that testosterone in pure form is not unless it is 17 alpha akalated. So what is different about DHEA that makes it get absorbed orally?
05-30-2006, 01:06 AM
I'm skeptical still after seeing this study. The study worked for older people with low DHEA levels but in younger people it seems not to.
Effect of oral DHEA on serum testosterone and adaptations to resistance training in young men.
Brown GA, Vukovich MD, Sharp RL, Reifenrath TA, Parsons KA, King DS.
Exercise Biochemistry Laboratory, Department of Health and Human Performance, Iowa State University, Ames, Iowa 50011, USA.
This study examined the effects of acute dehydroepiandrosterone (DHEA) ingestion on serum steroid hormones and the effect of chronic DHEA intake on the adaptations to resistance training. In 10 young men (23 +/- 4 yr old), ingestion of 50 mg of DHEA increased serum androstenedione concentrations 150% within 60 min (P < 0.05) but did not affect serum testosterone and estrogen concentrations. An additional 19 men (23 +/- 1 yr old) participated in an 8-wk whole body resistance-training program and ingested DHEA (150 mg/day, n = 9) or placebo (n = 10) during weeks 1, 2, 4, 5, 7, and 8. Serum androstenedione concentrations were significantly (P < 0.05) increased in the DHEA-treated group after 2 and 5 wk. Serum concentrations of free and total testosterone, estrone, estradiol, estriol, lipids, and liver transaminases were unaffected by supplementation and training, while strength and lean body mass increased significantly and similarly (P < 0.05) in the men treated with placebo and DHEA. These results suggest that DHEA ingestion does not enhance serum testosterone concentrations or adaptations associated with resistance training in young men.
05-30-2006, 01:53 AM
Originally Posted by ArnoldIsMyIdol
Well for 1 I have about 15 studies that will say Serum test did increase, but that isn't the point, I respect all studies. The main thing here is the age of the participants. They are very young, so obviously much higher dosages need to be taken since DHEA production is GREATLY inhibited during older age, about 90% is inhibited in people like aged 50 or some crazy number I read.
Secondly, the main use for DHEA is PCT when levels mock those of people who are aged 50.
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