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MPTP

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347: 198: 51: 508: 670: 42: 513: 559: 986:. The symptoms and brain structures of MPTP-induced Parkinson's disease are fairly indistinguishable to the point that MPTP may be used to simulate the disease in order to study Parkinson's disease physiology and possible treatments within the laboratory. Mouse studies have shown that susceptibility to MPTP increases with age. 876:
are much less susceptible. Rats are almost immune to the adverse effects of MPTP. Mice were thought to only suffer from cell death in the substantia nigra (to a differing degree according to the strain of mice used) but do not show Parkinsonian symptoms; however, most of the recent studies indicate
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scavenges for excessive dopamine at the synaptic spaces and transports them back into the cell. Even though this property is exhibited by both VTA and SNc neurons, VTA neurons are protective against MPP insult due to the expression of calbindin. Calbindin regulates the availability of Ca within the
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It has been postulated that Parkinson's disease may be caused by minute amounts of MPP-like compounds from ingestion or exogenously through repeated exposure and that these substances are too minute to be detected significantly by epidemiological studies.
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Knowledge of MPTP and its use in reliably recreating Parkinson's disease symptoms in experimental models has inspired scientists to investigate the possibilities of surgically replacing neuron loss through fetal tissue implants,
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Narmashiri, Abdolvahed; Abbaszadeh, Mojtaba; Ghazizadeh, Ali (2022). "The effects of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) on the cognitive and motor functions in rodents: A systematic review and meta-analysis".
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that MPTP can result in Parkinsonism-like syndromes in mice (especially chronic syndromes). It is believed that the lower levels of MAO-B in the rodent brain's capillaries may be responsible for this.
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Fahn, S. (1996). "Book Review -- The Case of the Frozen Addicts: How the Solution of an Extraordinary Medical Mystery Spawned a Revolution in the Understanding and Treatment of Parkinson's Disease".
1051:. It was tested as a treatment for various conditions, but the tests were halted when Parkinson-like symptoms were noticed in monkeys. In one test of the substance, two of six human subjects died. 919:, US, were diagnosed with Parkinsonism after having used MPPP contaminated with MPTP, and as many as 120 were reported to have been diagnosed with Parkinson's symptoms. The neurologist 512: 865:, which then relay signals to the rest of the brain. This pathway is controlled via dopamine-using neurons, which MPTP selectively destroys, resulting, over time, in parkinsonism. 923:
in collaboration with NIH tracked down MPTP as the cause, and its effects on primates were researched. After performing neural grafts of fetal tissue on three of the patients at
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Langston, J. William; Ballard, Philip; Tetrud, James W.; Irwin, Ian (25 February 1983). "Chronic Parkinsonism in Humans Due to a Product of Meperidine-Analog Synthesis".
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in his lab. They tested the substances on rats, but due to rodents' tolerance for this type of neurotoxin, nothing was observed. Kidston's Parkinsonism was treated with
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Davis GC, Williams AC, Markey SP, Ebert MH, Caine ED, Reichert CM, Kopin IJ (1979). "Chronic parkinsonism secondary to intravenous injection of meperidine analogs".
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the protagonist administers MPTP to the anti-heroine’s former nurse, who had stolen her painkillers in life, doing so as a means of neurodegenerative torture.
889:, US, synthesized MPPP with MPTP as a major impurity and self-injected the result. Within three days he began exhibiting symptoms of Parkinson's disease. The 396: 1733: 1871: 1436: 2435: 536: 2427: 1798: 1632: 17: 656:(meperidine). The Parkinson-inducing effects of MPTP were first discovered following accidental injection as a result of contaminated MPPP. 1111: 271: 2431: 1937: 890: 2471: 1751:
Lee, J.; Ziering, A.; Heineman, S. D.; Berger, L. (1947). "Piperidine Derivatives. Part II. 2-Phenyl- and 2-Phenylalkyl-Piperidines".
1647:"The Case of the Frozen Addicts" first broadcast 7 April 1986 and "Awakening the Frozen Addicts" first broadcast 4 January 1993. See 2330: 2178: 2135: 753: 361: 838:. MAOIs prevent the metabolism of MPTP to MPP by inhibiting the action of MAO-B, minimizing toxicity, and preventing neural death. 2340: 2320: 1998: 1535: 2231: 2037: 1974: 1705: 1155:
Buchi, I. J. (1952). "Synthese und analgetische Wirkung einiger 1-Methyl-4-phenyl-piperidin-(4)-alkylsulfone. 1. Mitteilung".
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causes Parkinsonism in rats by killing dopaminergic neurons in the substantia nigra. Like MPP, rotenone also interferes with
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Because MPTP itself is not directly harmful, toxic effects of acute MPTP poisoning can be mitigated by the administration of
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The neurotoxicity of MPTP was hinted at in 1976 after Barry Kidston, a 23-year-old chemistry graduate student in
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cell, which is not the case in SNc neurons due to their high-calcium-dependent autonomous pacemaker activity.
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control of complex movements. The direction of complex movement is based from the substantia nigra to the
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Jackson-Lewis, V.; Przedborski, S. (2007). "Protocol for the MPTP Mouse Model of Parkinson's Disease".
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Frim, D. M.; Uhler, T. A.; Galpern, W. R.; Beal, M. F.; Breakefield, X. O.; Isacson, O. (1994).
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Dopaminergic neurons are selectively vulnerable to MPP because DA neurons exhibit dopamine
313: 91: 2345: 2335: 2305: 2087: 2072: 1736:. National Institute of Neurological Disorders and Stroke. 9 February 2005. Archived from 1394:"Chapter 30 The Impact of MPTP on Parkinson's Disease Research: Past, Present, and Future" 971: 924: 862: 854: 175: 1916: 1831: 1306: 346: 197: 135: 1624: 1222: 1197: 1096: 1086: 1008:
In 2000, another animal model for Parkinson's disease was found. It was shown that the
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and destruction of dopaminergic neurons in the substantia nigra were discovered.
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effects, the compound may be accidentally produced during the manufacture of
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resulted in Parkinsonism, symptoms of which were subsequently reduced by
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research, all of which have demonstrated initial provisional successes.
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InChI=1S/C12H15N/c1-13-9-7-12(8-10-13)11-5-3-2-4-6-11/h2-7H,8-10H2,1H3
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https://openvault.wgbh.org/catalog/V_474CF2C8A20B4173988486AC4C605A3C
1066:. While cyperquat is not used anymore, the closely related substance 928: 873: 782: 622: 380:
InChI=1/C12H15N/c1-13-9-7-12(8-10-13)11-5-3-2-4-6-11/h2-7H,8-10H2,1H3
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which is mediated by DAT, which also has high-affinity for MPP. The
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Except where otherwise noted, data are given for materials in their
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This article is about the chemical. For the mitochondrial pore, see
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128 to 132 °C (262 to 270 °F; 401 to 405 K) 12 Torr
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metabolism, which leads to cell death and causes the buildup of
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The gross depletion of dopaminergic neurons severely affects
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Luo Qin; Peng Guoguang; Wang Jiacai; Wang Shaojun (2010).
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MPTP is used in industry as a chemical intermediate; the
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Contribution of MPTP to research into Parkinson's disease
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Parkinson's Disease. Diagnosis and Clinical Management
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is still being used as a herbicide in some countries.
1901:- Contains information regarding MPTP as a neurotoxin 1094:
MPTP-induced Parkinson's disease is featured in the
2374: 2207: 2144: 1960: 233: 1616: 1888:"How a Junkie's Brain Helps Parkinson's Patients" 292: 1295:Proceedings of the National Academy of Sciences 796:, specifically astrocytes. MPP kills primarily 510: 90: 1183:"1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine" 934:Langston documented the case in his 1995 book 1938: 8: 596:1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine 272:1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine 68:1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine 1945: 1931: 1923: 1536:"Bogus Heroin Brings Illness on the Coast" 1396:. In Factor, S. A.; Weiner, W. J. (eds.). 1035:MPTP was first synthesized as a potential 345: 196: 174: 33: 1793:. Elsevier Health Sciences. p. 369. 1784: 1782: 1387: 1385: 1365: 1324: 1314: 1221: 754:Learn how and when to remove this message 312: 1909:episode, "The Case of the Frozen Addict" 1248:Neuroscience & Biobehavioral Reviews 970:(1984) found that injections of MPTP in 766:Injection of MPTP causes rapid onset of 1917:"The MPTP Story" by J. William Langston 1711:. Institute of Environment and Health, 1441:Journal of Chongqing Medical University 1147: 401: 366: 341: 270: 773:MPTP itself is not toxic, but it is a 187: 777:compound and can therefore cross the 617:, which causes permanent symptoms of 462:40 °C (104 °F; 313 K) 373:Key: PLRACCBDVIHHLZ-UHFFFAOYSA-N 154: 134: 18:Mitochondrial permeability transition 7: 1789:Vinken, P. J.; Bruyn, G. W. (1994). 1112:The Metamorphosis of Prime Intellect 692:adding citations to reliable sources 1791:Intoxications of the Nervous System 1467:The New England Journal of Medicine 1196:Duty, Susan; Jenner, Peter (2011). 904:but he died 18 months later from a 891:National Institute of Mental Health 881:Discovery in users of illicit drugs 383:Key: PLRACCBDVIHHLZ-UHFFFAOYAV 283: 253: 938:, which was later featured in two 803:in a part of the brain called the 14: 648:with effects similar to those of 1872:"Surprising Clue to Parkinson's" 1214:10.1111/j.1476-5381.2011.01426.x 668: 557: 437: 431: 49: 40: 2436:Monoamine metabolism modulators 1417:. Neuro Detective International 1260:10.1016/j.neubiorev.2022.104792 1202:British Journal of Pharmacology 893:found traces of MPTP and other 679:needs additional citations for 553:(at 25 °C , 100 kPa). 1878:. 24 June 2001. Archived from 1715:. October 2005. Archived from 1619:The Case of the Frozen Addicts 936:The Case of the Frozen Addicts 917:Santa Clara County, California 425: 1: 2428:Monoamine reuptake inhibitors 2408:Receptor/signaling modulators 1058:of the toxic metabolite MPP, 1753:Journal of Organic Chemistry 1506:10.1016/0165-1781(79)90006-4 1412:"Parkinson's Disease Models" 948:, re-aired in the UK on the 868:MPTP causes Parkinsonism in 832:monoamine oxidase inhibitors 1479:10.1056/NEJM199612263352618 1400:. Demos Medical Publishing. 786:1-methyl-4-phenylpyridinium 621:by destroying dopaminergic 2488: 2432:Monoamine releasing agents 1348:Richardson, Jason (2005). 22: 15: 2472:Monoaminergic neurotoxins 2400: 1954:Monoaminergic neurotoxins 1109:In Roger Williams' novel 636:While MPTP itself has no 606:. It is of interest as a 547: 488: 412: 392: 357: 74: 62: 57: 48: 39: 1649:List of Horizon episodes 1392:Langston, J. W. (2002). 1169:10.1002/hlca.19520350514 1025:electron transport chain 925:Lund University Hospital 915:In 1983, four people in 908:overdose. Upon autopsy, 817:electron transport chain 612:monoaminergic neurotoxin 602:. It is classified as a 23:Not to be confused with 1840:10.1126/science.6823561 1316:10.1073/pnas.91.11.5104 1049:1-methyl-4-piperidinone 1045:phenylmagnesium bromide 961: 1676:10.1038/nprot.2006.342 1354:Toxicological Sciences 1157:Helvetica Chimica Acta 995:electrical stimulation 811:. MPP interferes with 517: 404:c2ccccc2/C1=C/CN(C)CC1 2331:MDMA (midomafetamine) 1722:on February 27, 2008. 1367:10.1093/toxsci/kfi304 1062:, has been used as a 644:, a synthetic opioid 516: 2194:Oxidopamine (6-OHDA) 2116:Oxidopamine (6-OHDA) 2106:-Methylnorsalsolinol 1894:. 21 September 2007. 1740:on October 16, 2007. 1713:Cranfield University 872:, including humans. 847:dopamine transporter 788:(MPP) by the enzyme 688:improve this article 499:(fire diamond) 64:Preferred IUPAC name 2462:Tetrahydropyridines 2316:MDA (tenamfetamine) 2247:4-CAB (α-ethyl-PCA) 2189:MDA (tenamfetamine) 1832:1983Sci...219..979L 1765:10.1021/jo01170a021 1570:. 26 November 1992. 1494:Psychiatry Research 1307:1994PNAS...91.5104F 1039:in 1947 by Ziering 921:J. William Langston 790:monoamine oxidase B 779:blood–brain barrier 619:Parkinson's disease 479:Solubility in water 452: g·mol 36: 1984:-Cysteinyldopamine 1882:on March 30, 2005. 1567:The New York Times 1540:The New York Times 1074:In popular culture 1031:Synthesis and uses 798:dopamine-producing 604:tetrahydropyridine 580:Infobox references 518: 34: 2444: 2443: 2439: 2276:-Dimethyldopamine 2267:α-Me-DA (3,4-DHA) 1899:Erowid MPTP Vault 1826:(4587): 979–980. 1800:978-0-444-81284-1 1634:978-0-679-42465-9 1542:. 9 December 1983 1473:(26): 2002–2003. 1301:(11): 5104–5108. 1131:6-Hydroxydopamine 819:, a component of 764: 763: 756: 738: 588:Chemical compound 586: 585: 484:Slightly soluble 326:CompTox Dashboard 116:Interactive image 2479: 2467:Phenyl compounds 2402: 2053:Dopamine quinone 1947: 1940: 1933: 1924: 1895: 1883: 1867: 1805: 1804: 1786: 1777: 1776: 1748: 1742: 1741: 1730: 1724: 1723: 1721: 1710: 1702: 1696: 1695: 1663:Nature Protocols 1657: 1651: 1645: 1639: 1638: 1622: 1605: 1599: 1598: 1596: 1594: 1578: 1572: 1571: 1558: 1552: 1551: 1549: 1547: 1532: 1526: 1525: 1489: 1483: 1482: 1462: 1456: 1455: 1453: 1452: 1432: 1426: 1425: 1423: 1422: 1416: 1408: 1402: 1401: 1389: 1380: 1379: 1369: 1345: 1339: 1338: 1328: 1318: 1286: 1280: 1279: 1242: 1236: 1235: 1225: 1208:(4): 1357–1391. 1193: 1187: 1186: 1179: 1173: 1172: 1163:(5): 1527–1536. 1152: 972:squirrel monkeys 834:(MAOIs) such as 809:substantia nigra 759: 752: 748: 745: 739: 737: 696: 672: 664: 627:substantia nigra 600:organic compound 570: 564: 561: 560: 538: 531: 524: 509: 451: 439: 433: 427: 420:Chemical formula 350: 349: 334: 332: 316: 296: 285: 274: 257: 237: 208: 200: 189: 178: 158: 138: 118: 94: 53: 44: 37: 2487: 2486: 2482: 2481: 2480: 2478: 2477: 2476: 2447: 2446: 2445: 2440: 2396: 2370: 2346:Norfenfluramine 2336:Methamphetamine 2203: 2140: 2093:MPP (cyperquat) 2088:Methamphetamine 1999:ALDH inhibitors 1956: 1951: 1886: 1870: 1817: 1814: 1809: 1808: 1801: 1788: 1787: 1780: 1750: 1749: 1745: 1732: 1731: 1727: 1719: 1708: 1704: 1703: 1699: 1659: 1658: 1654: 1646: 1642: 1635: 1609:Langston, J. 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ChemIDplus. 1184: 1178: 1175: 1170: 1166: 1162: 1158: 1151: 1148: 1141: 1137: 1136:Norsalsolinol 1134: 1132: 1129: 1127: 1124: 1123: 1119: 1114: 1113: 1108: 1107: 1103: 1099: 1098: 1093: 1092: 1088: 1084: 1083: 1079:In the novel 1078: 1077: 1073: 1071: 1069: 1065: 1061: 1057: 1052: 1050: 1046: 1042: 1038: 1030: 1028: 1026: 1022: 1018: 1015: 1011: 1006: 1002: 1000: 996: 993: 987: 985: 981: 977: 973: 969: 959: 957: 956: 951: 947: 943: 942: 937: 932: 930: 926: 922: 918: 913: 911: 907: 903: 899: 896: 892: 888: 880: 878: 875: 871: 866: 864: 860: 856: 851: 848: 844: 839: 837: 833: 828: 826: 825:free radicals 822: 821:mitochondrial 818: 814: 810: 806: 805:pars compacta 802: 799: 795: 791: 787: 784: 780: 776: 771: 769: 758: 755: 747: 744:December 2022 736: 733: 729: 726: 722: 719: 715: 712: 708: 705: –  704: 700: 699:Find sources: 693: 689: 683: 682: 677:This section 675: 671: 666: 665: 659: 657: 655: 651: 647: 643: 639: 634: 632: 628: 624: 620: 616: 613: 609: 605: 601: 597: 593: 581: 574: 569: 552: 546: 539: 532: 525: 501: 498: 497: 493: 492: 487: 483: 480: 476: 475: 471: 469: 468:Boiling point 466: 465: 461: 459: 458:Melting point 456: 455: 448: 446: 443: 442: 424: 421: 417: 416: 411: 402: 398: 391: 377: 367: 363: 356: 348: 344: 343:DTXSID8040933 340: 339: 337: 327: 323: 322: 315: 311: 310: 308: 306: 303: 302: 295: 291: 290: 288: 282: 278: 277: 273: 269: 267: 264: 263: 256: 252: 251: 249: 247: 244: 243: 236: 232: 231: 229: 226: 222: 221: 214: 213: 211: 209: 204: 203: 199: 195: 192: 190: 188:ECHA InfoCard 185: 184: 177: 173: 172: 170: 168: 165: 164: 157: 153: 152: 150: 148: 145: 144: 137: 133: 132: 130: 128: 125: 124: 117: 113: 112: 110: 106: 101: 100: 93: 89: 88: 86: 83: 79: 78: 73: 65: 61: 56: 52: 47: 43: 38: 30: 26: 19: 2404: 2403: 2291:Fenfluramine 2273: 2209:Serotonergic 2103: 2097: 2033:DOPA quinone 1981: 1962:Dopaminergic 1906: 1891: 1880:the original 1875: 1823: 1819: 1790: 1756: 1752: 1746: 1738:the original 1728: 1717:the original 1700: 1667: 1661: 1655: 1643: 1618: 1615:(May 1995). 1603: 1591:. 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Index

Mitochondrial permeability transition
MPPP
MPP
Skeletal formula
Ball-and-stick model of MPTP
Preferred IUPAC name
CAS Number
28289-54-5
JSmol
Interactive image
ChEBI
CHEBI:17963
ChEMBL
ChEMBL24172
ChemSpider
1346
ECHA InfoCard
100.044.475
Edit this at Wikidata
EC Number
IUPHAR/BPS
280
KEGG
C04599
MeSH
1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine
PubChem
1388
UNII
9P21XSP91P

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