Summary.
Drug abuse disorder is induced by a variety of substances and results from their interaction with the brain reward system. It is characterized by a high frequency of relapse, usually associated with to craving. In this study we investigated the effects of 1-methyl-1,2,3,4-tetrahydroisoquinoline, an endogenous compound with antidopaminergic and neuroprotective activity, on cocaine-induced reinstatement in cocaine-dependent, self-administering rats. 1-methyl-1,2,3,4-tetrahydroisoquinoline (50 mg/kg i.p.) completely inhibited the expression of reinstatement of cocaine self-administration and accompanying neurochemical changes induced by a single priming cocaine dose (10 mg/kg i.p.). The priming cocaine dose inhibited dopamine metabolism in the structures containing nerve endings (frontal cortex, nucleus accumbens, and striatum) but not in the substantia nigra and ventral tegmental area. A behaviorally active dose of 1-methyl-1,2,3,4-tetrahydroisoquinoline administered 30 min before a priming dose of cocaine significantly increased the dopamine concentration in the limbic structures, and strongly inhibited dopamine metabolism in the substantia nigra and ventral tegmental area. Cocaine also inhibited noradrenaline and serotonin metabolism, and 1-methyl-1,2,3,4-tetrahydroisoquinoline abolished the inhibition in noradrenaline metabolism, while it intensified the inhibition of serotonin metabolism. Our results strongly support the view that 1-methyl-1,2,3,4-tetrahydroisoquinoline, an endogenous compound, has considerable potential as a drug for combating substance abuse disease through the attenuation of craving.
Similar content being viewed by others
Abbreviations
- AMPA:
-
alpha-amino-3-hydroxy-5-methylisoxazole-4-propionate
- COMT:
-
catechol-O-methyltransferase
- DA:
-
dopamine
- DOPAC:
-
3,4-dihydroxyphenylacetic acid
- 5-HT:
-
serotonin
- 5-HIAA:
-
5-hydroxyindoleacetic acid
- HVA:
-
homovanillic acid
- MAO:
-
monoamine oxidase
- 1MeTIQ:
-
1-methyl-1,2,3,4-tetrahydroisoquinoline
- MHPG:
-
3-methoxy-4-hydroxyphenylglycol
- 3-MT:
-
3-methoxytyramine
- NA:
-
noradrenaline
References
K Abe T Saitoh Y Horiguchi I Utsunomiya K Taguchi (2005) ArticleTitleSynthesis and neurotoxicity of tetrahydroisoquinoline derivatives for studying Parkinson’s disease Biol Pharm Bull 28 1355–1362 Occurrence Handle16079473 Occurrence Handle10.1248/bpb.28.1355 Occurrence Handle1:CAS:528:DC%2BD2MXhtVWrsrzN
L Antkiewicz-Michaluk J Michaluk I Romańska I Papla J Vetulani (2000) ArticleTitleAntidopaminergic effects of 1,2,3,4-tetrahydroisoquinoline and salsolinol J Neural Transm 107 1009–1019 Occurrence Handle11041279 Occurrence Handle10.1007/s007020070049 Occurrence Handle1:CAS:528:DC%2BD3cXntlygt74%3D
L Antkiewicz-Michaluk J Michaluk M Mokrosz I Romańska E Lorenc-Koci S Ohta J Vetulani (2001) ArticleTitleDifferent action on dopamine catabolic pathways of two endogenous 1,2,3,4-tetrahydroisoquinolines with similar antidopaminergic properties J Neurochem 78 100–108 Occurrence Handle11432977 Occurrence Handle10.1046/j.1471-4159.2001.00391.x Occurrence Handle1:CAS:528:DC%2BD3MXltVymu7o%3D
L Antkiewicz-Michaluk B Karolewicz I Romańska J Michaluk A Bojarski J Vetulani (2003) ArticleTitle1-Methyl-1,2,3,4-tetrahydroisoquinoline protects against rotenone-induced mortality and biochemical changes in rat brain Eur J Pharmacol 466 263–269 Occurrence Handle12694809 Occurrence Handle10.1016/S0014-2999(03)01565-6 Occurrence Handle1:CAS:528:DC%2BD3sXisleltrw%3D
L Antkiewicz-Michaluk J Wardas J Michaluk I Romańska A Bojarski J Vetulani (2004) ArticleTitleProtective effect of 1-methyl-1,2,3,4-tetrahydroisoquinoline against dopaminergic neurodegeneration in the extrapyramidal structures produced by intracerebral injection of rotenone Int J Neuropsychopharmacol 7 155–163 Occurrence Handle14741061 Occurrence Handle10.1017/S1461145703004036 Occurrence Handle1:CAS:528:DC%2BD2cXjs12mtbs%3D
L Antkiewicz-Michaluk M Filip J Michaluk I Romańska A Patsenka I Papla E Przegaliński J Vetulani (2005) ArticleTitleConditioned rewarding stimulus associated with cocaine self-administration reverses the depression of catecholamine brain systems following cocaine withdrawal in rats Int J Neuropsychopharmacol 9 37–50 Occurrence Handle15941493 Occurrence Handle10.1017/S146114570500550X Occurrence Handle1:CAS:528:DC%2BD28Xht1eitA%3D%3D
L Antkiewicz-Michaluk M Filip W Kostowski A Patsenka P Popik E Przegaliński M Wróbel (2005a) ArticleTitle1-Methyl-1,2,3,4-tetrahydroisoquinoline attenuates ethanol, cocaine and morphine addiction in behavioral models: neurochemical correlates Acta Neurobiol Exp 65 P3.01 pp 321
A Ayala J Parrado J Cano A Machado (1994) ArticleTitleReduction of 1-methyl 1,2,3,4-tetrahydroisoquinoline level in substantia nigra of the aged rat Brain Res 638 334–336 Occurrence Handle8199872 Occurrence Handle10.1016/0006-8993(94)90667-X Occurrence Handle1:CAS:528:DyaK2cXhvVOqtLw%3D
DA Baker LTL Tran-Nguyen RA Fuchs JL Neisewander (2001) ArticleTitleInfluence of individual differences and chronic fluoxetine treatment on cocaine-seeking behavior in rats Psychopharmacology 155 18–26 Occurrence Handle11374332 Occurrence Handle10.1007/s002130000676 Occurrence Handle1:CAS:528:DC%2BD3MXjslCrt7k%3D
SP Berger S Hall JD Mickalian MS Reid CA Crawford K Delucchi K Carr S Hall (1996) ArticleTitleHaloperidol antagonism of cue-elicited cocaine craving Lancet 347 504–508 Occurrence Handle8596268 Occurrence Handle10.1016/S0140-6736(96)91139-3 Occurrence Handle1:CAS:528:DyaK28XhvFClurg%3D
MA Bozarth (1989) ArticleTitleNew perspectives on cocaine addiction: recent findings from animal research Can J Physiol Pharmacol 67 1158–1167 Occurrence Handle2688864 Occurrence Handle1:CAS:528:DyaK3cXhsFyhtw%3D%3D
G Campiani S Butini F Trotta C Fattorusso B Catalanotti F Aiello S Gemma V Nacci E Novellino JA Stark A Cagnotto E Fumagalli F Carnovali L Cervo T Mennini (2003) ArticleTitleSynthesis and pharmacological evaluation of potent and highly selective D3 receptor ligands: inhibition of cocaine-seeking behavior and the role of dopamine D3/D2 receptors J Med Chem 46 3822–3839 Occurrence Handle12930145 Occurrence Handle10.1021/jm0211220 Occurrence Handle1:CAS:528:DC%2BD3sXlslKitb8%3D
KM Carroll BJ Rounsaville C Nich LT Gordon PW Wirtz F Gawin (1994) ArticleTitleOne-year follow-up of psychotherapy and pharmacotherapy for cocaine dependence. Delayed emergence of psychotherapy effects Arch Gen Psychiatry 51 989–997 Occurrence Handle7979888 Occurrence Handle1:STN:280:DyaK2M%2FntVKktQ%3D%3D
C Contoreggi RI Herning B Koeppl PM Simpson PJ Negro SuffixJr C Fortner-Burton J Hess (2003) ArticleTitleTreatment-seeking inpatient cocaine abusers show hypothalamic dysregulation of both basal prolactin and cortisol secretion Neuroendocrinology 78 154–162 Occurrence Handle14512708 Occurrence Handle10.1159/000072797 Occurrence Handle1:CAS:528:DC%2BD3sXnsFeksL8%3D
JL Cornish PW Kalivas (2000) ArticleTitleGlutamate transmission in the nucleus accumbens mediates relapse in cocaine addiction J Neurosci 20 RC89 Occurrence Handle10899176 Occurrence Handle1:STN:280:DC%2BD387osVGjsQ%3D%3D
CA Dackis MS Gold DR Sweeney JP Byron SuffixJr R Climko (1987) ArticleTitleSingle-dose bromicriptine reverses cocaine craving Psychiatry Res 20 261–264 Occurrence Handle3602212 Occurrence Handle10.1016/0165-1781(87)90086-2 Occurrence Handle1:CAS:528:DyaL2sXktleisbg%3D
M Filip (2005) ArticleTitleRole of serotonin (5-HT)2 receptors in cocaine self-administration and seeking behavior in rats Pharmacol Rep 57 35–48 Occurrence Handle15849375 Occurrence Handle1:CAS:528:DC%2BD2MXnsl2qsbk%3D
RA Fuchs LTL Tran-Nguyen SE Specio RS Groff JL Neisewander (1998) ArticleTitlePredictive validity of the extinction/reinstatement model of drug craving Psychopharmacology 135 151–160 Occurrence Handle9497020 Occurrence Handle10.1007/s002130050496 Occurrence Handle1:CAS:528:DyaK1cXptl2ksw%3D%3D
FH Gawin (1991) ArticleTitleCocaine addiction: psychology and neurophysiology Science 251 1580–1586 Occurrence Handle2011738 Occurrence Handle10.1126/science.2011738 Occurrence Handle1:STN:280:DyaK3M7ovVamtQ%3D%3D
FJ Garcia-Ladona BF Cox (2003) ArticleTitleBP 897, a selective dopamine D3 receptor ligand with therapeutic potential for the treatment of cocaine-addiction CNS Drug Rev 9 141–158 Occurrence Handle12847556 Occurrence Handle1:CAS:528:DC%2BD3sXmsl2qt70%3D Occurrence Handle10.1111/j.1527-3458.2003.tb00246.x
MB Ghasemzadeh LK Permenter R Lake PF Worley PW Kalivas (2003) ArticleTitleHomer1 proteins and AMPA receptors modulate cocaine-induced behavioural plasticity Eur J Neurosci 18 1645–1651 Occurrence Handle14511343 Occurrence Handle10.1046/j.1460-9568.2003.02880.x
NE Goeders (2002) ArticleTitleStress and cocaine addiction J Pharmacol Exp Ther 301 785–789 Occurrence Handle12023504 Occurrence Handle10.1124/jpet.301.3.785 Occurrence Handle1:CAS:528:DC%2BD38XktlGjsr4%3D
RZ Goldstein ND Volkow (2002) ArticleTitleDrug addiction and its underlying neurobiological basis: neuroimaging evidence for the involvement of the frontal cortex Am J Psychiatry 159 1642–1652 Occurrence Handle12359667 Occurrence Handle10.1176/appi.ajp.159.10.1642
JW Grimm L Lu T Hayashi BT Hope TP Su Y Shaham (2003) ArticleTitleTime-dependent increases in brain-derived neurotrophic factor protein levels within the mesolimbic dopamine system after withdrawal from cocaine: implications for incubation of cocaine craving J Neurosci 23 742–747 Occurrence Handle12574402 Occurrence Handle1:CAS:528:DC%2BD3sXhtlOrsb8%3D
L Hadelsman A Rosenblum M Palij S Magura J Foote M Lovejoy B Stimmel (1997) ArticleTitleBromocriptine for cocaine dependence. A controlled clinical Trial Am J Addict 6 54–64 Occurrence Handle10.3109/10550499708993163
M Kohno S Ohta M Hirobe (1986) ArticleTitleTetrahydroisoquinoline and 1-methyl-tetrahydroisoquinoline as novel endogenous amines in rat brain Biochem Biophys Res Commun 140 448–454 Occurrence Handle3778459 Occurrence Handle10.1016/0006-291X(86)91111-3 Occurrence Handle1:CAS:528:DyaL28XmtVKlur0%3D
B Le Foll JC Schwartz P Sokoloff (2000) ArticleTitleDopamine D3 receptor agents as potential new medications for drug addiction Eur Psychiatry 15 140–146 Occurrence Handle10881212 Occurrence Handle10.1016/S0924-9338(00)00219-4 Occurrence Handle1:STN:280:DC%2BD3czptl2qtA%3D%3D
B Le Foll SR Goldberg P Sokoloff (2005) ArticleTitleThe dopamine D3 receptor and drug dependence: effects on reward or beyond? Neuropharmacology 49 525–541 Occurrence Handle15963538 Occurrence Handle10.1016/j.neuropharm.2005.04.022 Occurrence Handle1:CAS:528:DC%2BD2MXosVCrt7c%3D
KY Little UN Patel TB Clark JD Butts (1996) ArticleTitleAlteration of brain dopamine and serotonin levels in cocaine users: a preliminary report Am J Psychiatry 153 1216–1218 Occurrence Handle8780430 Occurrence Handle1:STN:280:DyaK28znsVWguw%3D%3D
J Littleton (2000) ArticleTitleCan craving be modeled in animals? The relapse prevention perspective Addiction 95 IssueIDSuppl 2 S83–S90 Occurrence Handle11002905 Occurrence Handle10.1080/09652140050111672
E Lorenc-Koci M Smialowska L Antkiewicz-Michaluk K Golembiowska M Bajkowska S Wolfarth (2000) ArticleTitleEffect of acute and chronic administration of 1,2,3,4-tetrahydroisoquinoline on muscle tone, metabolism of dopamine in the striatum and tyrosine hydroxylase immunocytochemistry in the substantia nigra, in rats Neuroscience 95 1049–1059 Occurrence Handle10682712 Occurrence Handle10.1016/S0306-4522(99)00511-4 Occurrence Handle1:CAS:528:DC%2BD3cXhtFehtbY%3D
E Lorenc-Koci J Wojcikowski M Kot A Haduch J Boksa WA Daniel (2004) ArticleTitleDisposition of 1,2,3,4,-tetrahydroisoquinoline in the brain of male Wistar and Dark Agouti rats Brain Res 996 168–179 Occurrence Handle14697494 Occurrence Handle10.1016/j.brainres.2003.10.023 Occurrence Handle1:CAS:528:DC%2BD3sXpvF2lsr0%3D
UR Mach AE Hackling S Perachon S Ferry CG Wermuth JC Schwartz P Sokoloff H Stark (2004) ArticleTitleDevelopment of novel 1,2,3,4-tetrahydroisoquinoline derivatives and closely related compounds as potent and selective dopamine D3 receptor ligands Chembiochem 5 508–518 Occurrence Handle15185375 Occurrence Handle10.1002/cbic.200300784 Occurrence Handle1:CAS:528:DC%2BD2cXjt1OmtLg%3D
A Markou F Weiss LH Gold SB Caine G Schulteis GF Koob (1993) ArticleTitleAnimal models of drug craving Psychopharmacology 112 163–182 Occurrence Handle7871016 Occurrence Handle10.1007/BF02244907 Occurrence Handle1:CAS:528:DyaK3sXms1Wrurk%3D
J Michaluk A Krygowska-Wajs B Karolewicz L Antkiewicz-Michaluk (2002) ArticleTitleRole of noradrenergic system in the mechanism of action of endogenous neurotoxin 1,2,3,4-tetrahydroisoquinoline: biochemical and functional studies Pol J Pharmacol 54 19–25 Occurrence Handle12020040 Occurrence Handle1:CAS:528:DC%2BD38XkvV2rsLY%3D
RJ Moore SL Vinsant MA Nader LJ Porrino DP Friedman (1998a) ArticleTitleEffect of cocaine self-administration on striatal dopamine D1 receptors in rhesus monkeys Synapse 28 1–9 Occurrence Handle10.1002/(SICI)1098-2396(199801)28:1<1::AID-SYN1>3.0.CO;2-G Occurrence Handle1:CAS:528:DyaK2sXns1Kmsrw%3D
RJ Moore SL Vinsant MA Nader LJ Porrino DP Friedman (1998b) ArticleTitleEffect of cocaine self-administration on striatal dopamine D2 receptors in rhesus monkeys Synapse 30 88–96 Occurrence Handle10.1002/(SICI)1098-2396(199809)30:1<88::AID-SYN11>3.0.CO;2-L Occurrence Handle1:CAS:528:DyaK1cXltVKqs7w%3D
WA Morton (1999) ArticleTitleCocaine and Psychiatric Symptoms Prim Care Companion J Clin Psychiatry 1 109–113 Occurrence Handle15014683
EV Nunes FR Levin (2004) ArticleTitleTreatment of depression in patients with alcohol or other drug dependence: a meta-analysis JAMA 291 1887–1896 Occurrence Handle15100209 Occurrence Handle10.1001/jama.291.15.1887 Occurrence Handle1:CAS:528:DC%2BD2cXjsVajtrk%3D
T Origitano J Hannigan MA Collins (1981) ArticleTitleRat brain salsolinol and blood-brain barrier Brain Res 224 446–451 Occurrence Handle7284853 Occurrence Handle10.1016/0006-8993(81)90876-3 Occurrence Handle1:CAS:528:DyaL38XhsF2itw%3D%3D
A Patsenka L Antkiewicz-Michaluk (2004) ArticleTitleInhibition of rodent brain monoamine oxidase and tyrosine hydroxylase by endogenous compounds – 1,2,3,4-tetrahydroisoquinoline alkaloids Pol J Pharmacol 56 727–734 Occurrence Handle15662085 Occurrence Handle1:CAS:528:DC%2BD2MXktFakur4%3D
A Patsenka K Golembiowska E Ziemińska E Salińska J Lazarewicz A Wąsik J Michaluk L Antkiewicz-Michaluk (2004) ArticleTitleNeuroprotective effects of 1-methyl-1,2,3,4-tetrahydroisoquinoline: in vitro and in vivo studies in rats Pol J Pharmacol 56 IssueIDSuppl 179
M Pilla S Perachon F Sautel F Garrido A Mann CG Wermuth JC Schwartz BJ Everitt P Sokoloff (1999) ArticleTitleSelective inhibition of cocaine-seeking behaviour by a partial dopamine D3 receptor agonist Nature 400 371–375 Occurrence Handle10432116 Occurrence Handle10.1038/22560 Occurrence Handle1:CAS:528:DyaK1MXkvFOntr0%3D
KL Preston JT Sullivan EC Strain GE Bigelow (1992) ArticleTitleEffects of cocaine alone and in combination with bromocriptine in human cocaine abusers J Pharmacol Exp Ther 262 279–291 Occurrence Handle1625204 Occurrence Handle1:CAS:528:DyaK38XkvVegurY%3D
A Preti (2000) ArticleTitleBP-897 Bioproject Curr Opin Investig Drugs 1 110–115 Occurrence Handle11249586 Occurrence Handle1:CAS:528:DC%2BD3cXnsFCqtLw%3D
R Ranaldi DC Roberts (1996) ArticleTitleInitiation, maintenance and extinction of cocaine self-administration with and without conditioned reward Psychopharmacology 128 89–96 Occurrence Handle8944411 Occurrence Handle10.1007/s002130050114 Occurrence Handle1:CAS:528:DyaK28XnsVenu7w%3D
R Reeves M Thiruchelvam DA Cory-Slechta (2004) ArticleTitleExpression of behavioral sensitization to the cocaine-like fungicide triadimefon is blocked by pretreatment with AMPA, NMDA and DA D1 receptor antagonists Brain Res 1008 155–167 Occurrence Handle15145752 Occurrence Handle10.1016/j.brainres.2004.01.079 Occurrence Handle1:CAS:528:DC%2BD2cXktVClt7Y%3D
ZL Rossetti Y Hmaidan GL Gessa (1992) ArticleTitleMarked inhibition of mesolimbic dopamine release: a common feature of ethanol, morphine, cocaine and amphetamine abstinence in rats Eur J Pharmacol 221 227–234 Occurrence Handle1426002 Occurrence Handle10.1016/0014-2999(92)90706-A Occurrence Handle1:CAS:528:DyaK3sXhs1Wlsw%3D%3D
DA Smelson J Williams D Ziedonis BD Sussner MF Losonczy C Engelhart M Kaune (2004) ArticleTitleA double-blind placebo-controlled pilot study of risperidone for decreasing cue-elicited craving in recently withdrawn cocaine dependent patients J Subst Abuse Treat 27 45–49 Occurrence Handle15223093 Occurrence Handle10.1016/j.jsat.2004.03.009
I Stolerman (1992) ArticleTitleDrugs of abuse: behavioural principles, methods and terms Trends Pharmacol Sci 13 170–176 Occurrence Handle1604709 Occurrence Handle10.1016/0165-6147(92)90059-F Occurrence Handle1:STN:280:DyaK383psFCgsQ%3D%3D
DW Teller P Devenyi (1988) ArticleTitleBromocriptine in cocaine withdrawal – does it work? Int J Addict 23 1197–1205 Occurrence Handle3069753 Occurrence Handle1:STN:280:DyaL1M7ntlCltg%3D%3D
J Vetulani (2001) ArticleTitleDrug addiction. Part II. Neurobiology of addiction (Review) Pol J Pharmacol 53 303–317 Occurrence Handle11990077 Occurrence Handle1:CAS:528:DC%2BD38XjvVCksw%3D%3D
J Vetulani L Antkiewicz-Michaluk I Nalepa M Sansone (2003) ArticleTitleA possible physiological role for cerebral tetrahydroisoquinolines Neurotox Res 5 147–155 Occurrence Handle12832229 Occurrence Handle10.1007/BF03033379
T Watanabe T Nakagawa R Yamamoto A Maeda M Minami M Satoh (2002) ArticleTitleInvolvement of glutamate receptors within the central nucleus of the amygdala in naloxone-precipitated morphine withdrawal-induced conditioned place aversion in rats Jpn J Pharmacol 88 399–406 Occurrence Handle12046982 Occurrence Handle10.1254/jjp.88.399 Occurrence Handle1:CAS:528:DC%2BD38Xjt1Ggu7g%3D
A Wąsik A Patsenka L Antkiewicz-Michaluk (2005) ArticleTitleAn endogenous compound 1-methyl-1,2,3,4-tetrahydroisoquinoline prevents the morphine addiction in rat: the view on neurochemical mechanism of action Eur Neuropsychopharmacol 15 IssueIDSuppl 22–23 Occurrence Handle10.1016/S0924-977X(05)80132-4
F Weiss R Ciccocioppo LH Parsons S Katner X Liu EP Zorrilla GR Valdez O Ben-Shahar S Angeletti RR Richter (2001) ArticleTitleCompulsive drug-seeking behavior and relapse. Neuroadaptation, stress, and conditioning factors Ann NY Acad Sci 937 1–26 Occurrence Handle11458532 Occurrence Handle1:CAS:528:DC%2BD3MXlsV2ku7g%3D Occurrence Handle10.1111/j.1749-6632.2001.tb03556.x
WL Woolverton KM Johnson (1992) ArticleTitleNeurobiology of cocaine abuse Trends Pharmacol Sci 13 193–200 Occurrence Handle1604712 Occurrence Handle10.1016/0165-6147(92)90063-C Occurrence Handle1:CAS:528:DyaK38XisVOkur8%3D
T Yamakawa Y Kotake M Fujitani H Shintani Y Makino S Ohta (1999) ArticleTitleRegional distribution of parkinsonism-preventing endogenous tetrahydroisoquinoline derivatives and an endogenous parkinsonism-preventing substance-synthesizing enzyme in monkey brain Neurosci Lett 276 68–70 Occurrence Handle10586977 Occurrence Handle10.1016/S0304-3940(99)00786-7 Occurrence Handle1:CAS:528:DyaK1MXntlemur4%3D
H Zhu GA Barr (2004) ArticleTitleThe role of AMPA and metabotropic glutamate receptors on morphine withdrawal in infant rats Int J Dev Neurosci 22 379–395 Occurrence Handle15380837 Occurrence Handle10.1016/j.ijdevneu.2004.06.005 Occurrence Handle1:CAS:528:DC%2BD2cXnslKgu7c%3D
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Antkiewicz-Michaluk, L., Filip, M., Michaluk, J. et al. An endogenous neuroprotectant substance, 1-methyl-1,2,3,4-tetrahydroisoquinoline (1MeTIQ), prevents the behavioral and neurochemical effects of cocaine reinstatement in drug-dependent rats. J Neural Transm 114, 307–317 (2007). https://doi.org/10.1007/s00702-006-0546-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00702-006-0546-y