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Old 02-24-2021, 01:21 PM   #1
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Selective androgen receptor modulator, YK11, regulates myogenic differentiation

Biol Pharm Bull

. 2013;36(9):1460-5.
doi: 10.1248/bpb.b13-00231.
Selective androgen receptor modulator, YK11, regulates myogenic differentiation of C2C12 myoblasts by follistatin expression
Yuichiro Kanno 1 , Rumi Ota, Kousuke Someya, Taichi Kusakabe, Keisuke Kato, Yoshio Inouye
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PMID: 23995658 DOI: 10.1248/bpb.b13-00231

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Abstract

The myogenic differentiation of C2C12 myoblast cells is induced by the novel androgen receptor (AR) partial agonist, (17α,20E)-17,20-[(1-methoxyethylidene)bis-(oxy)]-3-oxo-19-norpregna-4,20-diene-21-carboxylic acid methyl ester (YK11), as well as by dihydrotestosterone (DHT). YK11 is a selective androgen receptor modulator (SARM), which activates AR without the N/C interaction. In this study, we further investigated the mechanism by which YK11 induces myogenic differentiation of C2C12 cells. The induction of key myogenic regulatory factors (MRFs), such as myogenic differentiation factor (MyoD), myogenic factor 5 (Myf5) and myogenin, was more significant in the presence of YK11 than in the presence of DHT. YK11 treatment of C2C12 cells, but not DHT, induced the expression of follistatin (Fst), and the YK11-mediated myogenic differentiation was reversed by anti-Fst antibody. These results suggest that the induction of Fst is important for the anabolic effect of YK11.
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Old 03-08-2021, 11:50 AM   #2
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I tried this product not long ago and I must say It was not too bad. I did notice a little tren like aggressiveness from it but that was about the only negative side
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Old 03-08-2021, 12:39 PM   #3
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I tried this product not long ago and I must say It was not too bad. I did notice a little tren like aggressiveness from it but that was about the only negative side
Thanks for the feedback, I just started it a few days ago at 10mgs/ed.
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Old 05-08-2021, 06:52 PM   #4
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Thanks for the feedback, I just started it a few days ago at 10mgs/ed.
any update on this yet? how'd it go?
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Old 05-09-2021, 10:57 AM   #5
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any update on this yet? how'd it go?
I feel a little more fuller and seem to get a better workout pump.
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Old 05-10-2021, 03:26 PM   #6
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I feel a little more fuller and seem to get a better workout pump.
that's it? not the new deca or anything, i take it?
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Old 05-10-2021, 04:00 PM   #7
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I suspect it’s takes awhile for the increase in folastatin to decrease myostatin enough to noticeably see muscle mass gains. Remember I’m 64 so I may not experience the gains that a young guy might.
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Old 05-11-2021, 12:57 PM   #8
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you're 64!? did not know that...
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Old 05-11-2021, 06:00 PM   #9
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shit I hope im still able to walk to the shop to work out after 60
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Old 05-12-2021, 12:13 PM   #10
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First question. What is N/C? Says it activates AR without the N/C interaction? What does that mean.
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Old 05-12-2021, 12:34 PM   #11
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First question. What is N/C? Says it activates AR without the N/C interaction? What does that mean.
It explains it here.

http://www.peak-muscle.com/forum/showthread.php?t=42301
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