Oleamide

Last updated
Oleamide
Oleamide.svg
Names
Preferred IUPAC name
(9Z)-Octadec-9-enamide
Other names
oleoyl-amide
Oleylamide
9-Octadecenamide
(Z)-9-Octadecenamide
9,10-Octadecenoamide
Oleic acid amide
Cis-9,10-octadecenoamide
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.005.550 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 206-103-9
PubChem CID
UNII
  • InChI=1S/C18H35NO/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h9-10H,2-8,11-17H2,1H3,(H2,19,20)/b10-9- Yes check.svgY
    Key: FATBGEAMYMYZAF-KTKRTIGZSA-N Yes check.svgY
  • InChI=1/C18H35NO/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h9-10H,2-8,11-17H2,1H3,(H2,19,20)/b10-9-
    Key: FATBGEAMYMYZAF-KTKRTIGZBR
  • O=C(N)CCCCCCC\C=C/CCCCCCCC
Properties
C18H35NO
Molar mass 281.484 g·mol−1
AppearanceCreamy solid [1]
Density 0.879 g/cm3
Melting point 70 °C (158 °F; 343 K)< [2]
Boiling point >200 °C (392 °F; 473 K) [1]
Insoluble [1]
Hazards
NFPA 704 (fire diamond)
NFPA 704.svgHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
0
0
Flash point >200 °C (392 °F; 473 K) [1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Oleamide is an organic compound with the formula CH3(CH2)7CH=CH(CH2)7CONH2. [3] It is the amide derived from the fatty acid oleic acid. It is a colorless waxy solid and occurs in nature. Sometimes labeled as a fatty acid primary amide (FAPA), it is biosynthesized from N-oleoylglycine. [4]

Contents

Biochemical and medical aspects

In terms of natural occurrence, oleamide was first detected in human plasma. It was later shown to accumulate in the cerebrospinal fluid during sleep deprivation and induces sleep in animals. [4] [5]

It has been considered as a treatment for mood and sleep disorders, as well as cannabinoid-regulated depression. [6] [7]

In terms of its sleep inducing effects, it is speculated that oleamide interacts with multiple neurotransmitter systems. [8] [9] Some in-vitro studies show that cis-oleamide is an agonist for the cannabinoid receptor CB-1 with an affinity around 8 micromolar. [10] However, given oleamide's relatively low affinity for CB-1 and uncertainty about the concentration and biological role of oleamide in-vivo, it has been argued that it is premature to classify oleamide as an endocannabinoid. [11] At larger doses oleamide can lower the body temperature of mice by about 2 degrees, with the effect lasting about two hours. [9] The mechanism for this remains unknown. [9]

Oleamide has been found to enhance PPARα-dependent increase in doublecortin, a marker of neurogenesis in the hippocampus [12]

Oleamide is rapidly metabolized by fatty acid amide hydrolase (FAAH), the same enzyme that metabolizes anandamide. [13] It has been postulated that some effects of oleamide are caused by increased concentrations of anandamide brought about through the inhibition of FAAH. [9]

It has been claimed that oleamide increases the activity of choline acetyltransferase, an enzyme that is critical in the production of acetylcholine. [14]

Other occurrences

Oleamide has been found in Ziziphus jujuba , also known as Jujube fruit. [14]

Synthetic oleamide has a variety of industrial uses, including as a lubricant. [15]

Oleamide was found to be leaching out of polypropylene plastics in laboratory experiments, affecting experimental results. [16] Since polypropylene is used in a wide number of food containers such as those for yogurt, the problem is being studied. [17]

Oleamide is "one of the most frequent non-cannabinoid ingredients associated with Spice products." [18] Analysis of 44 products synthetic cannabinoid revealed oleamide in 7 of the products tested. [19]

See also

Related Research Articles

<span class="mw-page-title-main">Anandamide</span> Chemical compound (fatty acid neurotransmitter)

Anandamide (ANA), also known as N-arachidonoylethanolamine (AEA), an N-acylethanolamine (NAE), is a fatty acid neurotransmitter. Anandamide was the first endocannabinoid to be discovered: it participates in the body's endocannabinoid system by binding to cannabinoid receptors, the same receptors that the psychoactive compound THC in cannabis acts on. Anandamide is found in nearly all tissues in a wide range of animals. Anandamide has also been found in plants, including small amounts in chocolate. The name 'anandamide' is taken from the Sanskrit word ananda, which means "joy, bliss, delight", plus amide.

Benjamin Franklin Cravatt III is a professor in the Department of Chemistry at The Scripps Research Institute in La Jolla, California. Considered a co-inventor of activity-based proteomics and a substantial contributor to research on the endocannabinoid system, he is a prominent figure in the nascent field of chemical biology. Cravatt was elected to the National Academy of Sciences in 2014, and the American Academy of Arts and Sciences in 2016. He is Gilula Chair of Chemical Biology, a Cope Scholar, and a Searle Scholar.

<span class="mw-page-title-main">URB597</span> Chemical compound

URB597 (KDS-4103) is a relatively selective and irreversible inhibitor of the enzyme fatty acid amide hydrolase (FAAH). FAAH is the primary degradatory enzyme for the endocannabinoid anandamide and, as such, inhibition of FAAH leads to an accumulation of anandamide in the CNS and periphery where it activates cannabinoid receptors. URB597 has been found to elevate anandamide levels and have activity against neuropathic pain in a mouse model.

<span class="mw-page-title-main">Endocannabinoid system</span> Biological system of neurotransmitters

The endocannabinoid system (ECS) is a biological system composed of endocannabinoids, which are endogenous lipid-based retrograde neurotransmitters that bind to cannabinoid receptors, and cannabinoid receptor proteins that are expressed throughout the vertebrate central nervous system and peripheral nervous system. The endocannabinoid system remains under preliminary research, but may be involved in regulating physiological and cognitive processes, including fertility, pregnancy, pre- and postnatal development, various activity of immune system, appetite, pain-sensation, mood, and memory, and in mediating the pharmacological effects of cannabis. The ECS plays an important role in multiple aspects of neural functions, including the control of movement and motor coordination, learning and memory, emotion and motivation, addictive-like behavior and pain modulation, among others.

<span class="mw-page-title-main">Fatty-acid amide hydrolase 1</span> Mammalian protein found in Homo sapiens

Fatty-acid amide hydrolase 1 (FAAH) is a member of the serine hydrolase family of enzymes. It was first shown to break down anandamide (AEA), an N-acylethanolamine (NAE) in 1993. In humans, it is encoded by the gene FAAH.

<span class="mw-page-title-main">2-Arachidonoylglycerol</span> Chemical compound

2-Arachidonoylglycerol (2-AG) is an endocannabinoid, an endogenous agonist of the CB1 receptor and the primary endogenous ligand for the CB2 receptor. It is an ester formed from the omega-6 fatty acid arachidonic acid and glycerol. It is present at relatively high levels in the central nervous system, with cannabinoid neuromodulatory effects. It has been found in maternal bovine and human milk. The chemical was first described in 1994–1995, although it had been discovered some time before that. The activities of phospholipase C (PLC) and diacylglycerol lipase (DAGL) mediate its formation. 2-AG is synthesized from arachidonic acid-containing diacylglycerol (DAG).

<span class="mw-page-title-main">AM404</span> Active metabolite of paracetamol

AM404, also known as N-arachidonoylphenolamine, is an active metabolite of paracetamol (acetaminophen), responsible for all or part of its analgesic action and anticonvulsant effects. Chemically, it is the amide formed from 4-aminophenol and arachidonic acid.

<span class="mw-page-title-main">Methoxy arachidonyl fluorophosphonate</span> Chemical compound

Methoxy arachidonyl fluorophosphonate, commonly referred as MAFP, is an irreversible active site-directed enzyme inhibitor that inhibits nearly all serine hydrolases and serine proteases. It inhibits phospholipase A2 and fatty acid amide hydrolase with special potency, displaying IC50 values in the low-nanomolar range. In addition, it binds to the CB1 receptor in rat brain membrane preparations (IC50 = 20 nM), but does not appear to agonize or antagonize the receptor, though some related derivatives do show cannabinoid-like properties.

<i>N</i>-Arachidonoyl dopamine Chemical compound

N-Arachidonoyl dopamine (NADA) is an endocannabinoid that acts as an agonist of the CB1 receptor and the transient receptor potential V1 (TRPV1) ion channel. NADA was first described as a putative endocannabinoid (agonist for the CB1 receptor) in 2000 and was subsequently identified as an endovanilloid (agonist for TRPV1) in 2002. NADA is an endogenous arachidonic acid based lipid found in the brain of rats, with especially high concentrations in the hippocampus, cerebellum, and striatum. It activates the TRPV1 channel with an EC50 of approximately of 50 nM which makes it the putative endogenous TRPV1 agonist.

<span class="mw-page-title-main">JZL184</span> Chemical compound

JZL184 is an irreversible inhibitor for monoacylglycerol lipase (MAGL), the primary enzyme responsible for degrading the endocannabinoid 2-arachidonoylglycerol (2-AG). It displays high selectivity for MAGL over other brain serine hydrolases, including the anandamide-degrading enzyme fatty acid amide hydrolase (FAAH), thereby making it a useful tool for studying the effects of endogenous 2-AG signaling, in vivo. Administration of JZL184 to mice was reported to cause dramatic elevation of brain 2-AG leading to several cannabinoid-related behavioral effects.

<i>N</i>-Acylethanolamine Class of chemical compounds

An N-acylethanolamine (NAE) is a type of fatty acid amide where one of several types of acyl groups is linked to the nitrogen atom of ethanolamine, and highly metabolic formed by intake of essential fatty acids through diet by 20:4, n-6 and 22:6, n-3 fatty acids, and when the body is physically and psychologically active,. The endocannabinoid signaling system (ECS) is the major pathway by which NAEs exerts its physiological effects in animal cells with similarities in plants, and the metabolism of NAEs is an integral part of the ECS, a very ancient signaling system, being clearly present from the divergence of the protostomian/deuterostomian, and even further back in time, to the very beginning of bacteria, the oldest organisms on Earth known to express phosphatidylethanolamine, the precursor to endocannabinoids, in their cytoplasmic membranes. Fatty acid metabolites with affinity for CB receptors are produced by cyanobacteria, which diverged from eukaryotes at least 2000 million years ago (MYA), by brown algae which diverged about 1500 MYA, by sponges, which diverged from eumetazoans about 930 MYA, and a lineages that predate the evolution of CB receptors, as CB1 – CB2 duplication event may have occurred prior to the lophotrochozoan-deuterostome divergence 590 MYA. Fatty acid amide hydrolase (FAAH) evolved relatively recently, either after the evolution of fish 400 MYA, or after the appearance of mammals 300 MYA, but after the appearance of vertebrates. Linking FAAH, vanilloid receptors (VR1) and anandamide implies a coupling among the remaining ‘‘older’’ parts of the endocannabinoid system, monoglyceride lipase (MGL), CB receptors, that evolved prior to the metazoan-bilaterian divergence, but were secondarily lost in the Ecdysozoa, and 2-Arachidonoylglycerol (2-AG).

Palmitoylethanolamide (PEA) is an endogenous fatty acid amide, and lipid modulator PEA has been studied in in vitro and in vivo systems using exogenously added or dosed compound; there is evidence that it binds to a nuclear receptor, through which it exerts a variety of biological effects, some related to chronic inflammation and pain.

<span class="mw-page-title-main">Fatty acid amide</span> Class of chemical compounds

Fatty acid amides (FAAs) are amides formed from a fatty acid and an amine. In nature, many FAAs have ethanolamine as the amine component. Also known as N-acylethanolamines, they contain the functionality RC(O)N(H)CH2CH2OH. A well known example is anandamide. Other fatty acid amides are fatty acid primary amides (FAPAs). They contain the functionality RC(O)NH2). Oleamide is an example of this class of FAPAs.

<span class="mw-page-title-main">JZL195</span> Chemical compound

JZL195 is a potent inhibitor of both fatty acid amide hydrolase (FAAH) and monoacylglycerol lipase (MAGL), the primary enzymes responsible for degrading the endocannabinoids anandamide (AEA) and 2-arachidonoylglycerol (2-AG), respectively.

<span class="mw-page-title-main">LY-2183240</span> Chemical compound

LY-2183240 is a drug which acts both as a potent inhibitor of the reuptake of the endocannabinoid anandamide and as an inhibitor of fatty acid amide hydrolase (FAAH), the primary enzyme responsible for degrading anandamide. This leads to markedly elevated anandamide levels in the brain, and LY-2183240 has been shown to produce both analgesic and anxiolytic effects in animal models. While LY-2183240 is a potent inhibitor of FAAH, it has relatively poor selectivity and also inhibits several other enzyme side targets. Consequently, it was never developed for clinical use, though it remains widely used in research, and has also been sold as a designer drug.

<i>N</i>-Arachidonylglycine Chemical compound

N-Arachidonylglycine (NAGly) is a carboxylic metabolite of the endocannabinoid anandamide (AEA). Since it was first synthesized in 1996, NAGly has been a primary focus of the relatively contemporary field of lipidomics due to its wide range of signaling targets in the brain, the immune system and throughout various other bodily systems. In combination with 2‐arachidonoyl glycerol (2‐AG), NAGly has enabled the identification of a family of lipids often referred to as endocannabinoids. Recently, NAGly has been found to bind to G-protein coupled receptor 18 (GPR18), the putative abnormal cannabidiol receptor. NaGly is an endogenous inhibitor of fatty acid amide hydrolase (FAAH) and thereby increases the ethanolamide endocannabinoids AEA, oleoylethanolamide (OEA) and palmitoylethanolamide (PEA) levels. NaGly is found throughout the body and research on its explicit functions is ongoing.

IDFP is an organophosphorus compound related to the nerve agent sarin.

The endocannabinoid transporters (eCBTs) are transport proteins for the endocannabinoids. Most neurotransmitters are water-soluble and require transmembrane proteins to transport them across the cell membrane. The endocannabinoids on the other hand, are non-charged lipids that readily cross lipid membranes. However, since the endocannabinoids are water immiscible, protein transporters have been described that act as carriers to solubilize and transport the endocannabinoids through the aqueous cytoplasm. These include the heat shock proteins (Hsp70s) and fatty acid-binding proteins for anandamide (FABPs). FABPs such as FABP1, FABP3, FABP5, and FABP7 have been shown to bind endocannabinoids. FABP inhibitors attenuate the breakdown of anandamide by the enzyme fatty acid amide hydrolase (FAAH) in cell culture. One of these inhibitors (SB-FI-26), isolated from a virtual library of a million compounds, belongs to a class of compounds that act as an anti-nociceptive agent with mild anti-inflammatory activity in mice. These truxillic acids and their derivatives have been known to have anti-inflammatory and anti-nociceptive effects in mice and are active components of a Chinese herbal medicine used to treat rheumatism and pain in human. The blockade of anandamide transport may, at least in part, be the mechanism through which these compounds exert their anti-nociceptive effects.

PF-3845 is a selective inhibitor of fatty acid amide hydrolase. It results in increased levels of anandamide and results in cannabinoid receptor-based effects. It has anti-inflammatory action in mice colitis models. Antidiarrheal and antinociceptive effects were also seen in mouse models of pain.

An endocannabinoid enhancer (eCBE) is a type of cannabinoidergic drug that enhances the activity of the endocannabinoid system by increasing extracellular concentrations of endocannabinoids. Examples of different types of eCBEs include fatty acid amide hydrolase (FAAH) inhibitors, monoacylglycerol lipase (MAGL) inhibitors, and endocannabinoid transporter (eCBT) inhibitors. An example of an actual eCBE is AM404, the active metabolite of the analgesic paracetamol and a dual FAAH inhibitor and eCBRI.

References

  1. 1 2 3 4 Oleamide at chemicalland21.com
  2. ↑ "(9Z)-9-Octadecenamide | C18H35NO | ChemSpider".
  3. ↑ "Oleamide".
  4. 1 2 McKinney, Michele K.; Cravatt, Benjamin F. (June 2005). "Structure and Function of Fatty Acid Amide Hydrolase". Annual Review of Biochemistry. 74 (1): 411–432. doi:10.1146/annurev.biochem.74.082803.133450. PMID   15952893. S2CID   23571858.
  5. ↑ Cravatt, B.; Prospero-Garcia, O; Siuzdak, G; Gilula, N.; Henriksen, S.; Boger, D.; Lerner, R. (9 June 1995). "Chemical characterization of a family of brain lipids that induce sleep". Science. 268 (5216): 1506–1509. Bibcode:1995Sci...268.1506C. doi:10.1126/science.7770779. PMID   7770779. S2CID   32070839.
  6. ↑ Methods of treating anxiety and mood disorders with oleamide – US Patent 6359010 Archived 2011-06-12 at the Wayback Machine
  7. ↑ Mechoulam, Raphael; Fride, Ester; Hanu, Lumir; Sheskin, Tzviel; Bisogno, Tiziana; Di Marzo, Vincenzo; Bayewitch, Michael; Vogel, Zvi (September 1997). "Anandamide may mediate sleep induction". Nature. 389 (6646): 25–26. Bibcode:1997Natur.389R..25M. doi:10.1038/37891. PMID   9288961. S2CID   26371103.
  8. ↑ Fedorova, I; Hashimoto, A; Fecik, RA; Hedrick, MP; Hanus, LO; Boger, DL; Rice, KC; Basile, AS (October 2001). "Behavioral evidence for the interaction of oleamide with multiple neurotransmitter systems". The Journal of Pharmacology and Experimental Therapeutics. 299 (1): 332–42. PMID   11561096.
  9. 1 2 3 4 Hiley, C. Robin; Hoi, Pui Man (13 April 2007). "Oleamide: A Fatty Acid Amide Signaling Molecule in the Cardiovascular System?: OLEAMIDE". Cardiovascular Drug Reviews. 25 (1): 46–60. doi:10.1111/j.1527-3466.2007.00004.x. PMID   17445087.
  10. ↑ Leggett, JD; Aspley, S; Beckett, SR; D'Antona, AM; Kendall, DA; Kendall, DA (January 2004). "Oleamide is a selective endogenous agonist of rat and human CB1 cannabinoid receptors". British Journal of Pharmacology. 141 (2): 253–62. doi:10.1038/sj.bjp.0705607. PMC   1574194 . PMID   14707029.
  11. ↑ Fowler, Christopher J (January 2004). "Oleamide: a member of the endocannabinoid family?: Commentary". British Journal of Pharmacology. 141 (2): 195–196. doi:10.1038/sj.bjp.0705608. PMC   1574195 . PMID   14691053.
  12. ↑ Roy, Avik; Kundu, Madhuchhanda; Chakrabarti, Sudipta; Patel, Dhruv R; Pahan, Kalipada (December 2021). "Oleamide, a Sleep-Inducing Supplement, Upregulates Doublecortin in Hippocampal Progenitor Cells via PPARα". J Alzheimers Dis. 84 (4): 1747–1762. doi:10.3233/JAD-215124. PMC   10075226 . PMID   34744082.
  13. ↑ Maurelli, Stefano; Bisogno, Tiziana; De Petrocellis, Luciano; Di Luccia, Aldo; Marino, Gennaro; Di Marzo, Vincenzo (11 December 1995). "Two novel classes of neuroactive fatty acid amides are substrates for mouse neuroblastoma 'anandamide amidohydrolase'". FEBS Letters. 377 (1): 82–86. doi: 10.1016/0014-5793(95)01311-3 . PMID   8543025. S2CID   7461775.
  14. 1 2 Heo, Ho-Jin; Park, Young-June; Suh, Young-Min; Choi, Soo-Jung; Kim, Mi-Jeong; Cho, Hong-Yon; Chang, Yun-Jeong; Hong, Bumshik; Kim, Hye-Kyung; Kim, Eunki; Kim, Chang-Ju; Kim, Byung-Gee; Shin, Dong-Hoon (January 2003). "Effects of Oleamide on Choline Acetyltransferase and Cognitive Activities". Bioscience, Biotechnology, and Biochemistry. 67 (6): 1284–1291. doi: 10.1271/bbb.67.1284 . PMID   12843655.
  15. ↑ Surfactants : Westco Oleamide a Slip Agent In Polyethylene Films Archived January 27, 2007, at the Wayback Machine
  16. ↑ McDonald, G. R.; Hudson, A. L.; Dunn, S. M. J.; You, H.; Baker, G. B.; Whittal, R. M.; Martin, J. W.; Jha, A.; Edmondson, D. E.; Holt, A. (7 November 2008). "Bioactive Contaminants Leach from Disposable Laboratory Plasticware". Science. 322 (5903): 917. Bibcode:2008Sci...322..917M. doi:10.1126/science.1162395. PMID   18988846. S2CID   35526901.
  17. ↑ Mittelstaedt, Martin (6 November 2008). "Researchers Raise Alarm After Chemical Leak Found In Common Plastic". Globe and Mail. Retrieved 10 June 2013.
  18. ↑ Fattore, Liana; Fratta, Walter (21 September 2011). "Beyond THC: The New Generation of Cannabinoid Designer Drugs". Frontiers in Behavioral Neuroscience. 5: 60. doi: 10.3389/fnbeh.2011.00060 . PMC   3187647 . PMID   22007163.
  19. ↑ Uchiyama, Nahoko; Kikura-Hanajiri, Ruri; Ogata, Jun; Goda, Yukihiro (May 2010). "Chemical analysis of synthetic cannabinoids as designer drugs in herbal products". Forensic Science International. 198 (1–3): 31–38. doi:10.1016/j.forsciint.2010.01.004. PMID   20117892.