Isopregnanolone

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Isopregnanolone.svg

Isopregnanolone (also known as 3β-hydroxy-5α-pregnan-20-one) is a naturally occurring neurosteroid that is derived from the metabolism of progesterone. It is part of the pregnane family of steroids and plays a role in the modulation of the nervous system.

Biochemistry[edit | edit source]

Isopregnanolone is synthesized in the body from progesterone through the action of the enzyme 5α-reductase, which converts progesterone to dihydroprogesterone. Subsequently, dihydroprogesterone is converted to isopregnanolone by the enzyme 3β-hydroxysteroid dehydrogenase.

Function[edit | edit source]

Isopregnanolone acts as a positive allosteric modulator of the GABA_A receptor, which is the primary inhibitory neurotransmitter receptor in the central nervous system. By enhancing the effects of GABA, isopregnanolone contributes to the regulation of neuronal excitability and has anxiolytic, sedative, and anticonvulsant properties.

Clinical Significance[edit | edit source]

Research into isopregnanolone and other neurosteroids has shown potential therapeutic applications in the treatment of various neurological disorders, including epilepsy, anxiety disorders, and depression. However, more studies are needed to fully understand its clinical benefits and mechanisms of action.

Related Compounds[edit | edit source]

Isopregnanolone is structurally related to other neurosteroids such as allopregnanolone, pregnenolone, and dehydroepiandrosterone (DHEA). These compounds also modulate the GABA_A receptor and have similar effects on the nervous system.

See Also[edit | edit source]

References[edit | edit source]



External Links[edit | edit source]


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