Abstract:
A process for separating soluble silica species such as monomeric silicic acid (or monosilicic acid) and low molecular weight soluble polymeric silica from impure water soluble compounds by membrane nanofiltration is provided. A process for separating soluble silica species and colloidal silica from impure water soluble compounds by reverse phase liquid chromatography is also provided.
Abstract:
This disclosure relates to compounds of formula (I) shown below: [formula (I)], or a pharmaceutically acceptable salt thereof. These compounds can be used as imaging probes, e.g., for diagnosis of fibrosis or fibrogenesis.
Abstract:
[Problem] To provide a nuclear magnetic resonance diagnostic agent that has a lower toxicity to organisms and reduced side effects and yet has a site specificity toward a specific cell, tissue, organ, etc. [Solution] When ALA or an ALA derivative is administered in vivo, a metabolite thereof is accumulated in a specific cell, tissue, organ, etc. Focusing on this phenomenon, a nuclear magnetic resonance analysis was performed on a site wherein the metabolite of ALA that had been administered in vivo would be possibly accumulated. As a result, it was surprisingly found that ALA and an ALA derivative are useful as a diagnostic agent whereby the aforesaid problem can be solved.
Abstract:
The present invention relates to the use of compounds with at least one metal-sensitive chemical shift for determining metal concentrations and/or measuring metal concentration changes, wherein the compound is selected from the group of: pyro-EGTA, EGTA, EDTA, AATA, APTRA, BAPTA, HIDA, citrate, CarboxyGlutamate (CGlu), arylazo chromotopic acid, beta-diketone (crown-ether), mono-, di-, or tri-pyridyl aniline, mono-, di-, or tri-pyridyl amine, trimethylphenylammonium, or derivatives thereof. The present invention further relates to biosensors comprising at least one of the compounds. The present invention also relates to the use of the compounds for diagnosing and/or monitoring treatment of a disease causing changes in metal concentrations. The present invention is furthermore related to in vitro and in vivo methods for determining metal concentration and/or measuring metal concentration changes using the compounds or biosensors. The present invention also relates to methods of diagnosing and/or monitoring treatment of a disease causing changes in metal concentrations wherein the compounds or biosensors are applied. The present invention also relates to use of the compounds or biosensors in quality control of food or in the examination of plants and organisms or for monitoring of environmental resources. The present invention further relates to novel derivatives of pyro-EGTA, AATA, APTRA and BAPTA as well as their uses.
Abstract:
The present invention relates to the use of a combination of several contrast agents having different imaging properties with respect to imaging representation.
Abstract:
Disclosed are lipidomimetic compounds of formula I
wherein: G represents a group satisfying formula II:
HO-CH 2 -{CH(OH)-CH 2 -O} p -CH 2 -{C(=O)-O-CH 2 } q- formula II
each n independently is an integer from 1-30; p is an integer from 1-10; q is 0 or 1. These compounds can be added to the lipid bilayer of thermosensitive liposomes, for the purpose of aiding in the prevention of leakage of the liposomes' contents at 37°C, and retarding clearance from circulation.