Iomazenil

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Iomazenil
Clinical data
Other namesRo 16-0154
Identifiers
  • ethyl 7-iodanyl-5-methyl-6-oxo-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carboxylate
CAS Number
PubChem CID
ChemSpider
UNII
ChEMBL
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC15H14123IN3O3
Molar mass407.290 g/mol
3D model (JSmol)
  • CCOC(=O)c1c2n(cn1)-c3cccc(c3C(=O)N(C2)C)I
  • InChI=1S/C15H14IN3O3/c1-3-22-15(21)13-11-7-18(2)14(20)12-9(16)5-4-6-10(12)19(11)8-17-13/h4-6,8H,3,7H2,1-2H3/i16-4
  • Key:FRIZVHMAECRUBR-KIWWSDKQSA-N

Iomazenil (also known as Ro16-0154, INN, USAN; benzodine) is an antagonist and partial inverse agonist of benzodiazepine and a potential treatment for alcohol abuse. The compound was introduced in 1989 by pharmaceutical company Hoffmann-La Roche as an Iodine-123-labelled SPECT tracer for imaging benzodiazepine receptors (GABAA receptors) in the brain. Iomazenil is an analogue of flumazenil (Ro15-1788).[1]

Use in brain research

123I-labelled iomazenil can be used to image epileptic seizure foci as an alternative to 18F-fludeoxyglucose PET imaging.[2][3]

The effect of iomazenil of reducing levels of GABA in the brain was used by researchers to exacerbate symptoms in patients with schizophrenia in a laboratory study, supporting the theory that a GABA deficiency underlies that disease.[4]

Alcohol treatment

Researcher Deepak D'Souza and colleagues at Yale University and Veterans Affairs Connecticut Healthcare System are testing iomazenil as a potential treatment for drunkenness due to its ability to bind alcohol receptors in the brain.[5]

References

  1. ^ Höll, K; Deisenhammer E; Dauth J; Carmann H; Schubiger PA (1989). "Imaging benzodiazepine receptors in the human brain by single photon emission computed tomography (SPECT)". Int J Rad Appl Instrum B. 16 (8): 759–63.
  2. ^ Kung, Hank F.; Mei-Ping Kung; Seok Rye Choi (January 2003). "Radiopharmaceuticals for single-photon emission computed tomography brain imaging". Seminars in Nuclear Medicine. 33 (1): 2–13. doi:10.1053/snuc.2003.127296. PMID 12605353.
  3. ^ Goethals, I; Van de Wiele C; Boon P; Dierckx R (February 2003). "Is central benzodiazepine receptor imaging useful for the identification of epileptogenic foci in localization-related epilepsies?". Eur J Nucl Med Mol Imaging. 30 (2): 325–8.
  4. ^ Ahn, Kyungheup; Gil R; Seibyl J; Sewell RA; D'Souza DC (February 2011). "Probing GABA receptor function in schizophrenia with iomazenil". Neuropsychopharmacology. 36 (3). Nature Publishing Group: 677–83. doi:10.1038/npp.2010.198. PMC 3055690. PMID 21068719.
  5. ^ Dobson, Roger; Jonathan Owen (13 May 2012). "Tests begin on new drink-busting drug". Independent on Sunday. Retrieved 20 May 2012.

External links

Retrieved from "https://en.wikipedia.org/w/index.php?title=Iomazenil&oldid=747457799"