I have transplanted this from another forum, it belongs here too.
[quote]Blacksnake wrote:
(Meanwhile, in the UK’s credible scientific section)…
‘Fountain of youth’ steroids may protect against heart disease
Steroids sold as health supplements can switch on a natural defence mechanism against heart disease, according to University of Leeds researchers.
The University of Leeds biologists have identified a previously-unknown ion channel in human blood vessels that can limit the production of inflammatory cytokines; proteins that drive the early stages of heart disease.
After analyses, boffins found that this protective effect can be triggered by pregnenolone sulphate - a molecule that is part of a family of “fountain-of-youth” steroids. These steroids are so-called because of their apparent ability to improve energy, vision and memory
Collaborative studies with surgeons at Leeds General infirmary have shown that this defence mechanism can be switched on in diseased blood vessels as well as in healthy vessels.
So-called “fountain of youth” steroids are made naturally in the body, but levels decline rapidly with age.
This has led to a market in synthetically made steroids that are promoted for their health benefits, such as pregnenolone and DHEA. Pregnenolone sulphate is in the same family of steroids but it is not sold as a health supplement.
“The effect that we have seen is really quite exciting and also unexpected,” said Professor David Beech, who led the study. "However, we are absolutely not endorsing any claims made by manufacturers of any health supplements. Evidence from human trials is needed first."
A chemical profiling study indicated that the protective effect was not as strong when cholesterol was present too. This suggests that the expected benefits of “fountain of youth” steroids will be much greater if they are used in combination with cholesterol-lowering drugs and/or other healthy lifestyle strategies such as diet and exercise.
“These “fountain of youth” steroids are relatively cheap to make and some of them are already available as commercial products. So if we can show that this effect works in people as well as in lab-based studies, then it could be a cost-effective approach to addressing cardiovascular health problems that are becoming epidemic in our society and world-wide,” Professor Beech added.
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That is a nice bit of fluff. Hard to see where the above text came from when reading:
http://circres.ahajournals.org/cgi/content/full/106/9/1507
That is about as obvious as a Dan Brown treasure map.
I often cite the need for hCG in TRT/HRT to maintain pregnenolone levels. TRT induced testicular shutdown takes the largest single source in males] of pregnenolone off-line. This can have direct consequences for the brain. Low pregnenolone levels also will drag down DHEA and the other adrenal steroids. For most TRT without hCG constitutes failure of the testes. This is therapy induced organ failure.
With the implications of the above research, the effects of testicular shutdown have much wider implications. Many HRT docs do check pregnenolone levels and seek to have levels restored to youthful levels. They have good reasons for doing this. The research explains the mechanics of one possible beneficial result of maintaining youthful hormone profiles.
It is well known from clinical studies that men with the lowest DHEA-S levels, who have heart attacks, have the lowest 1 year survivability rates. It seems obvious that men with the highest natural DHEA-S levels would also have the highest pregnenolone levels. So the drive to supplement with DHEA-S to place one self in the survivors group could be of limited effect, as higher natural DHEA-S levels may be the effect of higher pregnenolone and higher DHEA-S serum levels may not be the primary cause of increased survivability.
Also, men with the lowest natural pregnenolone and DHEA levels will as a group have the lowest testosterone levels. Low testosterone is known to have a wide spectrum of negative effects. Thus low pregnenolone can have other secondary effects in natural aging males.
The study explores the possible implications of increasing pregnenolone. But what are the implications and mechanics of very low pregnenolone levels? I do not know if the paper really presents any evidence in that direction.
I disagree with the suggestion that cholesterol lowering drugs would be of unqualified benefit, as statin drugs can easily reduce CoQ10 levels, lowering mitochondrial activity which can simply replace heart attack events with death by congestive heart failure. CoQ10 supplements are needed with statin drugs. I need to tell a story: An older friend had a ongoing nagging cough. I asked if he was taking Lipitor. He responded, surprised that I asked, that he was on 40mg, [a large dose]. I gave him a bottle of 100mg ubiquinol CoQ10. His cough is gone and he has lost 17 pounds, a long term sore elbow is also “healed”. As he burns off his own fat, he eats less. 17 pound of fat is a lot of calories. He continues to loose fat. I notice that his blue jeans all look new too. [Constant coughing is a major symptom of congestive heart failure. A weakness in the heart causes back pressure in the lungs forcing fluids to accumulate in the lungs.]