Heya guys
And yes I'm kind of back.. I mean I'm usually knocking around here and there on hair loss sites!
I think that anything that:
1) Lowers serum serotonin or serotonin synthesis (be especially careful with this though as it could cause depression or constipation!)
2) Lowers serum histamine or histamine synthesis
3) Binds to the correct serotonin receptor (I think this is 5-HT2C in the Hypothalamus) or binds to serotonin receptors non-selectively
4) Binds to the correct histamine receptor (I'm unsure which one it is... none seem to be in the Hypothalamus or Pituitary, and yet apparently Histamine stimulates the HPA axis. Perhaps it's just correlation and it's serotonin doing it? Not sure)
5) Reduces CRH (also called CRF
) in the brain, optionally by reducing its synthesis
6) Binds to the correct CRH receptor on the pituitary gland (probably the same one that Astressin-B does... which is possibly CRF-2a, but the scientists seemed to struggle binding to the specific one. Perhaps we haven't discovered the one we need to target yet?)
stands a good chance of very positively impacting hair. Histamine is more debatable though.. I think it's best to focus on CRH, followed by serotonin.
Of course, after this chain it continues and something increases the enzymes that increase DHT in the scalp. I'm not sure what hormone does this though. The enzymes however are apparently 17a-HSD, 3a-HSD and 17b-HSD.
I'm still learning though.. it's all new to me but I'm pretty confident this is the correct route.
Some useful links and stuff:
http://www.plosone.org/article/info:doi/10.1371/journal.pone.0016377
Hello all - I haven't posted here for a while, but I have stumbled across something that I think deserves mention. I would like to know if anyone here is familiar with a new medication called Agomelatine. It is a drug that is chemically very similar to melatonin and has been in clinical trials for the past few years as a treatment for depression.
Recently, it was approved in Europe where it is available under the trade names Valdoxan and Melitor. You can read about it on Wikipedia. I first became aware of this drug in late 2007 when I got access to it through a clinical trial for sleep problems. The drug worked great for me with no side effect s(it has very few) The surprising thing was that I was almost certain that, after some 2 months, it was improving my hair. Unfortunately, in the 3rd month I moved to the East Coast and had to leave the trial and couldn't get the drug since it was not yet available.
A little over 2 months ago, I discovered that Agomelatine had been approved in Europe and was available (it should be available in the US next year) Having had a lot of sleep issues and some depression, I immediately ordered some and went back on it. I've now been on for 10 weeks. I take 25mg before bed daily. Just before starting on it, I went through a terrible shed for reasons unknown. Like many of you guys, I know just exactly how much hair I normally shed from years of monitoring different treatments, and my hair was suddenly falling out 4-6 hairs at a time and I was freaked. Well now in my 3rd month of Agomelatine my shed rate is back to normal and, more interestingly, my previous observation seems to be consistent - my hair is improving again - faster than with any other treatment I've ever used. The growth cycle seems to be longer and I have terminal hair growing in my crown where nothing has grown longer than about 1/2 inch for years. I have stylable hair there now and all my hair is growing longer and better. I have started taking pictures, but I can tell something is going on. I also know this is the case because I haven't colored any gray out of my hair and yet my hair is far darker because it is growing better.
Has anyone else had any experience with Agomelatine?
I did some research and discovered that A.G Henkel company has filed a patent for a hair treatment which uses it.
http://www.wipo.int/pctdb/en/wo.jsp?WO=2009024361 I should mention that I take dutasteride daily and shampoo with 2% Nizoral daily for over 5 years, so this may be a synergistic effect.
Having used most of the treatments we discuss here, I have never noticed this much of a result nor this fast with anything else. (other than transplantation).
If anyone else has any information I'm very interested in hearing it.
Best to all,
Dean
(Agomelatine - as well as being a melatonin agonist (via both MT1 and MT2) - is also a 5-HT2C antagonist. I was actually literally doing a search for "agomelatine hair" on Google based on my suspicions about 5-HT2C when I discovered the thread with that post in it)
http://en.wikipedia.org/wiki/Agomelatine
This video by Danny Roddy also highlights the suspected significance of serotonin:
[video=youtube;lB7cQRDhqTg]http://www.youtube.com/watch?v=lB7cQRDhqTg[/video]
This all suggests to me that
anything that stimulates the HPA axis can cause androgenetic alopecia. That is to say the trigger hormone (that increases the DHT-boosting enzymes) is probably not serotonin, probably not histamine and probably not CRH. It is probably either ACTH or one of the subsequent hormones ACTH increases mostly or entirely via the adrenal glands.
Serotonin and histamine are often increased in conditions like irritable bowel syndrome, due to serotonin being necessary for the movement of food through the gut. When the gut is struggling, more serotonin is released to move food, and more of the SERTs (Serotonin Transporters) are damaged and so do not respond. Histamine is involved with gut inflammation, and so when food that hurts the gut is consumed, histamine may increase causing itching, sneezing and so on, and apparently stimulating the HPA axis as well.
http://en.wikipedia.org/wiki/Serotonin
http://en.wikipedia.org/wiki/Histamine
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This is interesting...
http://upload.wikimedia.org/wikipedia/commons/1/13/Steroidogenesis.svg