Can finasteride and dutasteride increase androgen receptor sensitivity?

Ventures

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I am aware it has been discussed a lot about this issue on this as well as other hair loss forums, but I think we all want to learn more about this aspect. As new finasteride user I am actually worried, do we with this drugs induce more sensitivity of hair to our androgen hormons ?


Do you think, 5ard inhibitors can increase an androgen receptor sensitivity (upreglation of AR) , etc. hair follicles become more sensitive and get used to lower levels of DHT circulated in blood flow. That would explain why some people experienced accelerated hair loss immediately after discontinuation of finasteride or dutasteride even before ceasing their hair loss was halted or was stabilized. Apparently, reason is as DHT level quickly goes up two or three days after last pill, follicles which have been years in low DHT state, are then attacked literally by increased level of DHT. Another possible clue which was reported by some long term finasteride users, is there was lack of efficacy of these drugs after 5,10 or more years. Of course, it’s possible their hair loss become more aggressive due to naturally increase in 5-alfa-reductase in their body. On the other hand, no matter in what age you start and how initially your male pattern baldness aggressive is, doses such as: 1 mg, 1.25 mg, in most cases significantly slow or even halt hair loss. And as time goes up many users, especially those with aggressive AA must upper the dose after particular time (some after just a year, or even less, some after 4,5 years or more) to remain results . That would mean there is correlation between efficacy of the dose and duration of usage of that dose. What I mean is, I do not believe our body rapidly start to produce more 5ard enzymes after relatively short time periods such as a year, two, three or even five . Or maybe I am wrong. I realize that if someone is using finasteride for let's say 10 years, then his body produce more 5ard in his 35 then in age when he was 25 years old when started with finasteride. In that sense 10 years time frame means a lot in endocrinology aspect, but I believe periods of time less than 5-10 years, typically can not result in such great differences of produced levels of 5ard.

So, when finasteride or dutasteride lose their efficacy during the time, is it because:


  • There is more 5-alfa-reductase producing in body (as result of aging process or some kind of feedback mechanism - body realize there is decrease in DHT level, and start to produce more 5ard)
  • AR become more sensitive
  • Combination between above two statements
  • Possible other unknown factors as change in auto-immune response, fibrosis etc. which are also included in AA and are not yet fully understood.

What do you think which factor contributes most to eventual decrease in effectiveness of dutasteride and finasteride after some period of time, and is it possible DHT inhibitors(finasteride, dutasteride) can cause UPREGULATION of AR?
 

abcdefg

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I think hair gets used to lower androgen levels through some unknown mechanisms and hair loss resumes like it did before you ever took it although maybe at slower pace. The auto immune and other things certainly are at play in male pattern baldness but we know androgens can stop male pattern baldness its the only real proof we have that it can be prevented through castration.
I think its certainly possible there can be upregulation of AR. I just feel like if hair is normally reacting with androgens for many years and then you suddenly take a lot of it away the body adapts somehow to help keep that process going but just a complete guess no idea if there is real research on it. I think taking propecia could change how androgens affect your hair had you never taken it but without real studies or research on why or how its all guessing
 

Ventures

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But on the other hand, according to study posted by Brian, regarding that the rest of the T is produced in adrenal glands, castration supresses T level by 90-95 % and DHT level only by 70 %. (*) So we can say supression in DHT is similar what we get using finasteride. As we know for sure castratation stops /halts male pattern baldness. So these data impose new questions:


(*) http://www.hairlosstalk.com/interac...8-DHT-levels?p=1089431&viewfull=1#post1089431


1. Why AR in castrated men because of significant reduction of all andrgens don't become so sensitive during time, so the rest of DHT circulating around (which is as mentioned before 30-10 % according to study), start to kill hair follicles ?


2. If DHT after castration is reduced by 70 % or more, which is quite the same suppresion level of DHT in finasteride (70 %) and dutasteride (90 %) users, how is it possible finasteride and dutasteride are not so effective in halting male pattern baldness as castration ?




Obviously that's probably due to a more complete suppression of androgens than just what you get with finasteride. Castration causes about the same DHT suppression as finasteride, but causes a very striking reduction of testosterone, compared to what you get with finasteride (which actually tends to go UP a little). T and other androgen hormones play huge role in Male patern baldnes regarding their infuence in auto-immune-response, fibrosis etc.
 

rerun

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How common is it for men to get castrated as a means of halting male pattern baldness?
 

Valiant

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I have never seen a statistic but I would say never. I would not think a physician would ever perform such a surgery without a very critical medical need, such as testicular cancer.
 

Nostro100

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Im from the future...2018

Damn if, this guys talking in 2013 would probably think that hairloss in 2018 would have been cured.
And they asked VERY IMPORTANT QUESTIONS that got unanswered
in short: if castration guarantees 100% hair, then why doesn't dutasteride guarantee that too since both methods stop DHT ?
a lot of pieces of the male pattern baldness puzzle are hidden in plain site and we dont see them.
 

abcdefg

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As usual we dont know. I think testosterone could play a role in keeping male pattern baldness rolling its still unexplored because everyone is so hyper focused on DHT. Also castration prevent male pattern baldness it doesnt reverse it. Most men castrated it happens early on before male pattern baldness gets going while most men on AAs start after they see the bald spots which is well into the process many years or even decades later. Timing is certainly very important.
Does hair develop a sensitivity to androgens over time if they are present? So just removing them early on prevents your hair from getting more sensitive at all.
Its funny because it was 5 years ago, and I dont think we know anything more than back then
 

Nostro100

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well... talking about reversing it, this thread shows how a transgender got it well reversed.
https://www.hairlosstalk.com/intera...the-power-of-super-aggressive-regimens.90671/
https://imgur.com/a/XL74b
I don't know if he got castrated (if so I would refer to as a she). Made a CTRL+F and wrote "Castration" and nothing showed up so Idk if all those gains were all due to the regiment (not that it matters to a man...no man wanting to remain male will do that).

In that sense, I think we may have a wrong idea about the effectiveness of some treatments. If the hair doesnt grow back is because the hair follicule dead or because we are doing it wrong?
 

AnxiousAndy

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As usual we dont know. I think testosterone could play a role in keeping male pattern baldness rolling its still unexplored because everyone is so hyper focused on DHT. Also castration prevent male pattern baldness it doesnt reverse it. Most men castrated it happens early on before male pattern baldness gets going while most men on AAs start after they see the bald spots which is well into the process many years or even decades later. Timing is certainly very important.
Does hair develop a sensitivity to androgens over time if they are present? So just removing them early on prevents your hair from getting more sensitive at all.
Its funny because it was 5 years ago, and I dont think we know anything more than back then
So far in my case castration has not halted my male pattern baldness unfortunately. Still receding and thinning.
well... talking about reversing it, this thread shows how a transgender got it well reversed.
https://www.hairlosstalk.com/intera...the-power-of-super-aggressive-regimens.90671/
https://imgur.com/a/XL74b
I don't know if he got castrated (if so I would refer to as a she). Made a CTRL+F and wrote "Castration" and nothing showed up so Idk if all those gains were all due to the regiment (not that it matters to a man...no man wanting to remain male will do that).

In that sense, I think we may have a wrong idea about the effectiveness of some treatments. If the hair doesnt grow back is because the hair follicule dead or because we are doing it wrong?
I don't think follicles become permenantly dead as some people have managed to recover hairs lost decades ago. I think male pattern baldness is a little different for everyone. For some DHT is the problem, others testosterone and something else for the few who don't respond to anti androgens and DHT inhibitors. I think I fall into the third category and I have no clue what else I can try.
 

abcdefg

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So far in my case castration has not halted my male pattern baldness unfortunately. Still receding and thinning.

I don't think follicles become permenantly dead as some people have managed to recover hairs lost decades ago. I think male pattern baldness is a little different for everyone. For some DHT is the problem, others testosterone and something else for the few who don't respond to anti androgens and DHT inhibitors. I think I fall into the third category and I have no clue what else I can try.

How was your hair before you got on treatments? Timing on when you start AAs is more important than taking them. As you get older the sensitivity increases if your unfortunate enough to have it.
 

AnxiousAndy

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How was your hair before you got on treatments? Timing on when you start AAs is more important than taking them. As you get older the sensitivity increases if your unfortunate enough to have it.
Was about a NW1.5 with only thinning at my temples, hairline was good. Now my hairline has receded about an inch or more and my temples are almost completely bald. Crown has started to thin out now too :( I started with finasteride at 19 and it didn't work, tried oral spironolactone for about 7 months and it just caused a terrible shed. Been on oral minoxidil for 10 months with a few months of regrowth but that all shed and more so my hair looks like crap now. Can't style it the way I used to without using seasalt spray and a thickening shampoo, even then it still doesn't look the way it used to. Now I've added in androdur and some low dose oral and topical esteogen about 2 months ago, still losing my hair. Been treating my hairloss for almost 2 years and I've lost more hair in that time than I had before treatments.
 

Retinoid

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For Finasteride at least, since the body does not increase testosterone production (via LH) it is highly unlikely it creates more ARs in the scalp since creating more receptors is it's response to crisis and it does not seem to react like it is in crisis mode. DHT is a tissue specific hormone and those tissues may not need as much DHT as is being made after puberty therefore the 30-40% that is left with Finasteride may be enough for the tissues. When you cut it down to having 1% like high dosages of Duasteride, your body will most likely then respond as if in crisis (increasing testosterone production, increasing receptors, etc).
 

rclark

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How common is it for men to get castrated as a means of halting male pattern baldness?

Oh, very common :D. 99% of men go that route.

It's a little painful at first, but then it feels OK.

Also, you can start to wear tight genes you never could
wear before!

Dumbest 2018 POST AWARDS. :cool:;);)
 

infinitepain

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From what i've heard, AR inhibitors like CB and RU can inrease it but enzyme receptors (finasteride and dutasteride) don't, but haven't seen any long term studies. People like @IdealForehead are on heavy amounts of AR receptors with regrowth after no response on finasteride and dutasteride.. i hope he keeps us updated
 

infinitepain

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How was your hair before you got on treatments? Timing on when you start AAs is more important than taking them. As you get older the sensitivity increases if your unfortunate enough to have it.
I don't understand why as you get older it would be more sensitive... as you get older things should become all slower and less efficient, after 25 at least
 

abcdefg

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I don't understand why as you get older it would be more sensitive... as you get older things should become all slower and less efficient, after 25 at least

hamilton proved the older you are the same amount of androgens cause male pattern baldness to start and progress faster compared to injection into someone younger.
It has nothing to do with hormone levels as you age which might decline, but your hair responds differently to those androgens with age. Either you develop more receptors over time in response to drop in androgens, or cellular aging cause hair cells to be effected by androgens differently than before. We dont know why.
It makes sense though. If androgen levels drop with age why does the incidence of male pattern baldness actually go up and increase? Increasing sensitivity to androgens makes good sense. Maybe 95 percent of all men are sensitive to androgens it just takes enough time!
 

Retinoid

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hamilton proved the older you are the same amount of androgens cause male pattern baldness to start and progress faster compared to injection into someone younger.
It has nothing to do with hormone levels as you age which might decline, but your hair responds differently to those androgens with age. Either you develop more receptors over time in response to drop in androgens, or cellular aging cause hair cells to be effected by androgens differently than before. We dont know why.
It makes sense though. If androgen levels drop with age why does the incidence of male pattern baldness actually go up and increase? Increasing sensitivity to androgens makes good sense. Maybe 95 percent of all men are sensitive to androgens it just takes enough time!

There is also the scalp tension theory or inflammation of the scalp theory where the body uses DHT and ARs as an antiinflammatory but in a hypoxic/low oxygen and blood flow environment (due to the scalp changes) they become pro inflammatory.
 

Retinoid

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I lowered my dutasteride dose to "only" 0.5mg a day ... and sometimes I miss a day. And itchy scalp is insane lol. Worse than on Finasteride.

I do believe in androgen receptors upregulation theory, I can't prove it.

And I don't want to take 1 or 2mg again, no sex drive for 10 years was enough.

When you experience more itchy and hair loss on finasteride after some time be careful. Increase the dose or take something stronger might not be the best idea. Hormonal route can mess up your body ... I hope something less risky will come out soon.

I have never had this itchy scalp unless I was using something that irritated it. I have started on .25mg/day Propecia for four days and haven't noticed any side effects yet. So will be on the look out for this elusive itchy scalp.
 

Retinoid

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@Retinoid : You're lucky then if you have no itchy, except if you use something topically that irritate your scalp. You're lucky, because its really annoying and makes you think all the time about hair loss.
Good luck with your treatment !

When I said you* I was not referring to you and only you. Sorry for my english I really need to improve :/

Thank you. Things were going well with just Rogaine but I am 30 and have a lot of baldness in my family so figured I should at least be taking Propecia too.
 

Nostro100

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@Retinoid : You're lucky then if you have no itchy, except if you use something topically that irritate your scalp. You're lucky, because its really annoying and makes you think all the time about hair loss.
Good luck with your treatment !

When I said you* I was not referring to you and only you. Sorry for my english I really need to improve :/

have you ever experienced gyno (in finasteride or in duta?)
 
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