NO933703L - Melaninbaserte midler for avbildingsforbedring - Google Patents

Melaninbaserte midler for avbildingsforbedring

Info

Publication number
NO933703L
NO933703L NO933703A NO933703A NO933703L NO 933703 L NO933703 L NO 933703L NO 933703 A NO933703 A NO 933703A NO 933703 A NO933703 A NO 933703A NO 933703 L NO933703 L NO 933703L
Authority
NO
Norway
Prior art keywords
melanin
metal
metals
paramagnetic
preferred
Prior art date
Application number
NO933703A
Other languages
English (en)
Other versions
NO933703D0 (no
Inventor
Robert F Williams
Original Assignee
Univ Texas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Texas filed Critical Univ Texas
Publication of NO933703D0 publication Critical patent/NO933703D0/no
Publication of NO933703L publication Critical patent/NO933703L/no

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00—Preparations for testing in vivo
    • A61K49/06—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
    • A61K49/08—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by the carrier
    • A61K49/10—Organic compounds
    • A61K49/12—Macromolecular compounds
    • A61K49/126—Linear polymers, e.g. dextran, inulin, PEG
    • A61K49/128—Linear polymers, e.g. dextran, inulin, PEG comprising multiple complex or complex-forming groups, being either part of the linear polymeric backbone or being pending groups covalently linked to the linear polymeric backbone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00—Preparations for testing in vivo
    • A61K49/06—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
    • A61K49/08—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by the carrier
    • A61K49/085—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by the carrier conjugated systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K51/00—Preparations containing radioactive substances for use in therapy or testing in vivo
    • A61K51/02—Preparations containing radioactive substances for use in therapy or testing in vivo characterised by the carrier, i.e. characterised by the agent or material covalently linked or complexing the radioactive nucleus
    • A61K51/04—Organic compounds
    • A61K51/06—Macromolecular compounds, carriers being organic macromolecular compounds, i.e. organic oligomeric, polymeric, dendrimeric molecules
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2123/00—Preparations for testing in vivo

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

Foreliggende oppfinnelse angår et bildeforsterkende middel som omfatter paramagnetisk melanin i kombinasjon med et hovedsakelig ikke- spaltbart signalbevirkende metall. Det signal- bevirkende metall har en assosiasjonskonstant for sin melanin-kombinasjon på minst ca. 1020. Ved suspendering eller oppløsing i vann forblir metallet uspaltet. Et foretrukket signalbevir- kende metall er paramagnetisk eller superparamag- netisk, selvsagt for magnetisk resonans-avbil- ding. Foretrukkede paramagnetiske eller super- paramagnetiske metaller er gadolinium, jern, nikkel, kobber, erbium, europium, praseodym, dysprosium, holmium, krom eller mangan. Gadoli- nium er det mest effektive metall. Metallet inn- arbeides i melaninet i ionisk eller partikkel- form. Det kan anvendes metaller som er spesielt egnet for modifisering av ultralyd-bilder ved forsterking av bildet som fåes ved utsendelse og påvisning av høyfrekvens-lydbølger. Metaller som utsender gammapartikler, kan også anvendes for forsterkning av bilder som fås ved gammapar- tikkel-utsendelses-scanning. 51Krom, 68gallium, 99mtechnetium og ll:Lindium er foretrukkede metal- ler for gammapartikkel-scanning. Dessuten er naturlig eller syntetisert melanin, i seg selv og av seg selv, et effektivt MRI-bildeforsterkings- middel på grunn av sin evne til regulering av innholdet av frie radikaler i melanin-polymerene.
NO933703A 1991-04-15 1993-10-14 Melaninbaserte midler for avbildingsforbedring NO933703L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/685,937 US5310539A (en) 1991-04-15 1991-04-15 Melanin-based agents for image enhancement
PCT/US1992/003177 WO1992018166A1 (en) 1991-04-15 1992-04-15 Melanin-based agents for image enhancement

Publications (2)

Publication Number Publication Date
NO933703D0 NO933703D0 (no) 1993-10-14
NO933703L true NO933703L (no) 1993-12-14

Family

ID=24754272

Family Applications (1)

Application Number Title Priority Date Filing Date
NO933703A NO933703L (no) 1991-04-15 1993-10-14 Melaninbaserte midler for avbildingsforbedring

Country Status (11)

Country Link
US (1) US5310539A (no)
EP (1) EP0580734A1 (no)
JP (1) JPH06506468A (no)
AU (1) AU652829B2 (no)
CA (1) CA2108362A1 (no)
CZ (1) CZ218193A3 (no)
FI (1) FI934542A (no)
HU (1) HUT74435A (no)
NO (1) NO933703L (no)
SK (1) SK112693A3 (no)
WO (1) WO1992018166A1 (no)

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Also Published As

Publication number Publication date
CZ218193A3 (en) 1994-03-16
AU652829B2 (en) 1994-09-08
JPH06506468A (ja) 1994-07-21
US5310539A (en) 1994-05-10
WO1992018166A1 (en) 1992-10-29
CA2108362A1 (en) 1992-10-16
FI934542A0 (fi) 1993-10-14
FI934542A (fi) 1993-12-13
HUT74435A (en) 1996-12-30
NO933703D0 (no) 1993-10-14
AU1754992A (en) 1992-11-17
HU9302889D0 (en) 1993-12-28
SK112693A3 (en) 1994-10-05
EP0580734A1 (en) 1994-02-02

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