Valerian: Difference between revisions

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'''Valerian''' is a plant widely used in traditional, [[complementary and alternative medicine]], with pharmacologically active components that affect the [[central nervous system]].  '''Valeriana officialis''' is present in some official Northern European formularies, although it is most often used in [[phytotherapy|herbal medicine]]. Valerian is used for its sleep-inducing and anti-anxiety effects.
'''Valerian''' is a plant widely used in traditional, [[complementary and alternative medicine]], with pharmacologically active components that affect the [[central nervous system]].  '''Valeriana officialis''' is present in some official Northern European formularies, although it is most often used in [[phytotherapy|herbal medicine]].<ref>{{citation
 
It has several types of components that affect receptors in the [[central nervous system]], although some are unstable, and there is per-plant variability: <ref>{{citation
  | journal = J Pharm Pharmacol
  | journal = J Pharm Pharmacol
  | date = May 1999
  | date = May 1999
Line 9: Line 7:
  | title = (Abstract) The scientific basis for the reputed activity of Valerian.
  | title = (Abstract) The scientific basis for the reputed activity of Valerian.
  | author = Houghton PJ
  | author = Houghton PJ
  | url = http://www.ncbi.nlm.nih.gov/pubmed/10411208}}</ref>
  | url = http://www.ncbi.nlm.nih.gov/pubmed/10411208}}</ref>  Valerian is used for its sleep-inducing and anti-anxiety effects.
 
It has several types of components that affect receptors in the [[central nervous system]], although some are unstable, and there is per-plant variability:<ref>{{citation
| url = http://www.drugs.com/npp/valerian.html
| title = Valerian
| publisher = Drugs Information Online
}}</ref>


*Volatile oil: "Some of these have been shown to have a direct action on the amygdaloid body of the brain and valerenic acid has been shown to inhibit enzyme-induced breakdown of [[GABA]] in the brain resulting in sedation. The non-volatile monoterpenes known as valepotriates were first isolated in 1966 and contribute to the overall activity by possessing sedative activity based on the CNS although the mode of action is not clearly known. The valepotriates themselves act as prodrugs which are transformed into homobaldrinal which has been shown to reduce the spontaneous motility of mice"
*Volatile oil containing:
**Bornyl acetate, a monoterpene
**Bornyl acetate, a monoterpene
**Valerenic acid, a sesquiterpene
**Valerenic acid, a sesquiterpene, which has been used as the basis of standardization in European preparations. It has been found to be quite unstable and thus difficult to use for a reference
**Other variable terpenes
**Other variable terpenes
*Aqueous extract of root
*Aqueous extract of root
**[[GABA]]
**[[Alkaloid]]s
**Hydroxypinoresinol,, a lignan that binds to [[benzodiazepine]] receptors
**[[GABA]], although it is not clear if it passes the blood-brain barrier
**Hydroxypinoresinol,, a [[lignan]] that binds to [[benzodiazepine]] receptors


==References==
==References==
{{reflist}}
{{reflist}}

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Valerian is a plant widely used in traditional, complementary and alternative medicine, with pharmacologically active components that affect the central nervous system. Valeriana officialis is present in some official Northern European formularies, although it is most often used in herbal medicine.[1] Valerian is used for its sleep-inducing and anti-anxiety effects.

It has several types of components that affect receptors in the central nervous system, although some are unstable, and there is per-plant variability:[2]

  • Volatile oil containing:
    • Bornyl acetate, a monoterpene
    • Valerenic acid, a sesquiterpene, which has been used as the basis of standardization in European preparations. It has been found to be quite unstable and thus difficult to use for a reference
    • Other variable terpenes
  • Aqueous extract of root

References

  1. Houghton PJ (May 1999), "(Abstract) The scientific basis for the reputed activity of Valerian.", J Pharm Pharmacol 51 (5): 505-512
  2. Valerian, Drugs Information Online