List of neurosteroids

Source: Wikipedia, the free encyclopedia.

Allopregnanolone, a major endogenous inhibitory neurosteroid.
Steroid ring system.

This is a list of neurosteroids, or

vomeropherines. In contrast to steroid hormones, neurosteroids have rapid, non-genomic effects through interactions with membrane steroid receptors and can quickly influence central nervous system
function.

Inhibitory

Natural

Cholestanes

Androstanes

The following are proneurosteroids:

  • Dihydrotestosterone (DHT; androstanolone, stanolone): 5α-androst-17β-ol-3-one – of the above-listed inhibitory androstane neurosteroids
  • Testosterone: androst-4-en-17β-ol-3-one – of the above-listed inhibitory androstane neurosteroids

Pregnanes

  • 3α-Dihydroprogesterone (3α-DHP): pregn-4-en-3α-ol-20-one – GABAA receptor positive allosteric modulator
  • 5α-Dihydroprogesterone (5α-DHP; allopregnanedione): 5α-pregnane-3,20-dione – GABAA receptor positive allosteric modulator
  • 5β-Dihydroprogesterone (5β-DHP; pregnanedione): 5β-pregnane-3,20-dione – GABAA receptor positive allosteric modulator
  • Allopregnanediol: 5α-pregnane-3α,20α-diol – GABAA receptor positive allosteric modulator[4]
  • brexanolone
    ; SAGE-547): 5α-pregnan-3α-ol-20-one – GABAA receptor positive allosteric modulator
  • Dihydrodeoxycorticosterone (DHDOC): 21-hydroxy-5α-pregnan-20-one – GABAA receptor positive allosteric modulator
  • Pregnanediol: 5β-pregnan-3α,20α-diol – GABAA receptor positive allosteric modulator[4]
  • Pregnanolone (eltanolone): 5β-pregnan-3α-ol-20-one – GABAA receptor positive allosteric modulator
  • Tetrahydrodeoxycorticosterone (THDOC): 3α,21-dihydroxy-5α-pregnan-20-one – GABAA receptor positive allosteric modulator

The following are proneurosteroids:

Synthetic

Cholestanes

  • Acebrochol (cholesteryl acetate dibromide): 5α,6β-dibromocholestan-3β-ol 3β-acetate – GABAA receptor positive allosteric modulator

Pregnanes

  • Alfadolone: 3α,21-dihydroxy-5α-pregnane-11,20-dione – GABAA receptor positive allosteric modulator
  • Alfadolone acetate
    : 3α,21-dihydroxy-5α-pregnane-11,20-dione 21-acetate – GABAA receptor positive allosteric modulator
  • Alfaxalone: 3α-hydroxy-5α-pregnane-11,20-dione – GABAA receptor positive allosteric modulator
  • EIDD-036 (P4-20-O): 20-(hydroxyimino)pregn-4-en-3-one – progesterone-like inhibitory neurosteroid[5]
  • Ganaxolone: 3β-methyl-5α-pregnan-3α-ol-20-one – GABAA receptor positive allosteric modulator
  • Hydroxydione: 21-hydroxy-5β-pregnane-3,20-dione – GABAA receptor positive allosteric modulator
  • Minaxolone: 11α-(dimethylamino)-2β-ethoxy-5α-pregnan-3α-ol-20-one – GABAA receptor positive allosteric modulator
  • ORG-20599: 21-chloro-2β-morpholin-4-yl-5β-pregnan-3α-ol-20-one – GABAA receptor positive allosteric modulator
  • ORG-21465: 2β-(2,2-dimethyl-4-morpholinyl)-3α-hydroxy-11,20-dioxo-5α-pregnan-21-yl methanesulfonate – GABAA receptor positive allosteric modulator
  • Posovolone (Co 134444): 3β-Hydroxy-21-(1H-imidazol-1-yl)-3α-(methoxymethyl)-5α-pregnan-20-one – GABAA receptor positive allosteric modulator
  • Renanolone: 5β-pregnan-3α-ol-11,20-dione – GABAA receptor positive allosteric modulator
  • SGE-516 – GABAA receptor positive allosteric modulator[6]
  • SGE-872 – GABAA receptor positive allosteric modulator[6]
  • Zuranolone (SAGE-217): 3α-hydroxy-3β-methyl-21-(4-cyano-1H-pyrazol-1'-yl)-19-nor-5β-pregnan-20-one – GABAA receptor positive allosteric modulator[7][6]

The following are proneurosteroids:

Excitatory

Natural

Cholestanes

  • Cerebrosterol (24(S)-Hydroxycholesterol): cholest-5-en-3β,24S-diol – NMDA receptor positive allosteric modulator[12]

Pregnanes

  • 3β-Dihydroprogesterone (3β-DHP): pregn-4-en-3β-ol-20-one – GABAA receptor negative allosteric modulator
  • Epipregnanolone: 5β-pregnan-3β-ol-20-one – GABAA receptor negative allosteric modulator
  • Isopregnanolone (sepranolone): 5α-pregnan-3β-ol-20-one – GABAA receptor negative allosteric modulator
  • Pregnenolone sulfate (PS): pregn-5-en-3β-ol-20-one 3β-sulfate – GABAA receptor negative allosteric modulator, NMDA receptor positive allosteric modulator, sigma-1 receptor agonist, TRPM3 agonist, other actions

The following are proneurosteroids:

  • Pregnenolone (P5): pregn-5-en-3β-ol-20-one – of pregnenolone sulfate

Androstanes

  • Dehydroepiandrosterone (DHEA; prasterone): androst-5-en-3β-ol-17-one – GABAA receptor positive allosteric modulator, NMDA receptor positive allosteric modulator, sigma-1 receptor agonist, other actions
  • Dehydroepiandrosterone sulfate (DHEA-S; prasterone sulfate): androst-5-en-3β-ol-17-one 3β-sulfate – GABAA receptor negative allosteric modulator, NMDA receptor positive allosteric modulator, other actions

Synthetic

Androstanes

  • 17-Phenylandrostenol (17-PA): 17-phenyl-5α-androst-16-en-3α-ol – GABAA receptor negative allosteric modulator
  • Golexanolone (GR-3027): 3α-ethynyl-3β-hydroxyandrostan-17E-one oxime – GABAA receptor negative allosteric modulator

Others

  • SAGE-201 - oxysterol/cholesterol analogue – NMDA receptor positive allosteric modulator[6]
  • SAGE-301 - oxysterol/cholesterol analogue – NMDA receptor positive allosteric modulator[6]
  • SAGE-718: oxysterol/cholesterol analogue; exact chemical structure undisclosed – NMDA receptor positive allosteric modulator[6]

Mixed

Natural

Cholestanes

  • Cholesterol: cholest-5-en-3β-ol – NMDA receptor positive allosteric modulator, possible GABAA receptor positive allosteric modulator, many other actions[13][14][15]

Pregnanes

  • Epipregnanolone sulfate: 5β-pregnan-3β-ol-20-one 3β-sulfate – GABAA and NMDA receptor negative allosteric modulator, TRPM3 agonist

Neurotrophic

Natural

Androstanes

Ergostanes

  • fungi-derived; undefined mechanism of action; shows neurotrophic activity in vitro; was formerly under development for the treatment of cognitive disorders[16]

Synthetic

Androstanes

  • BNN-20: 17β-spiro-(androst-5-en-17,2'-oxiran)-3β-ol – TrkA, TrkB, and p75NTR agonist

Pregnanes

  • BNN-27: 17α,20R-epoxypregn-5-ene-3β,21-diol – TrkA and p75NTR agonist

Antineurotrophic

Natural

Androstanes

  • Testosterone: androst-4-en-17β-ol-3-one – TrkA and p75NTR antagonist

Synthetic

Pregnanes

  • Dexamethasone: 9α-fluoro-11β,17α,21-trihydroxy-16α-methylpregna-1,4-diene-3,20-dione – TrkA and p75NTR antagonist

Pheromones and pherines

Natural

Androstanes

Estranes

Synthetic

Androstanes

  • Fasedienol (Aloradine; PH94B; 4-androstadienol): androsta-4,16-dien-3β-ol

Estranes

Pregnanes

  • Pregnadienedione
    (PDD): pregna-4,20-dien-3,6-dione

Others

Others

Natural

Pregnanes

Spirostanes

Estranes

Synthetic

Pregnanes

Androstanes

See also

References