Abstract:
Methods for identifying defects in blood vessels and treating such defects are provided. The methods comprise administering to a patient a composition comprising a labeled delivery ligand capable of accumulating at sites where blood vessels are compromised. In some embodiments, the delivery vessel may carry one or more active agents to the defect.
Abstract:
The present invention generally relates to the use of tracers, for example, to track a substance that has been administered to a subject. A tracer may be separate from the substance to be administered, or in some cases, the tracer and the substance are chemically bonded to each other. When administered to a subject (e.g., ingested), the tracer and the substance to be administered may be absorbed and/or metabolized by the subject, and the pharmacokinetic activity of the tracer within the subject may be related to the pharmacokinetic activity of the substance. Thus, by following the pharmacokinetic activity of the tracer, the pharmacokinetic activity of the substance may be determined. The tracer itself may be determined within a subject using any suitable method, depending on the tracer. As an example, the tracer may be determined by administering an indicator able to interact with the tracer. For instance, the indicator may be applied to the skin of the subject, and the indicator may give a different visual appearance based on the concentration of the tracer, or otherwise exhibit a determinable change in a property of the indicator. Other aspects of the invention are generally directed to methods of making or using tracers, methods of promoting the making or use of such tracers, kits involving such tracers, and the like.
Abstract:
Provided is a novel probe for a biological specimen for labelling by itself and clearly visualizing one of a specific cell and a specific cell organ in a living body, the probe having excellent spectral characteristics and exhibiting excellent storage stability. The probe for a biological specimen contains, as an active agent, at least one kind of compound represented by a general formula (I).
Abstract:
The present invention provides a method of optical electrophysiological probing, including: providing a fluorescing chemical probe; contacting a thick portion of tissue with the fluorescing chemical probe to create a thick portion of treated tissue; applying a first range of wavelengths of electromagnetic radiation to the treated portion of tissue; and detecting a plurality of depth-specific emission wavelengths emitted from the thick portion of treated tissue.
Abstract:
The present invention relates to the field of diagnostic imaging and provides compositions of ultrasound contrast agents, particularly gas-filled microvesicles suspensions, in combination with vital dyes. The compositions of the invention are advantageously used in the visualization of the lymphatic system, particularly for the detection of the sentinel lymph node or nodes of a tumor.
Abstract:
This invention pertains generally to the field of chemical synthesis and purification, and more specifically to methods of synthesizing and purifying certain 3,7 diamino-phenothiazin-5-ium compounds (referred to herein as "diaminophenothiazinium compounds") including Methythioninium Chloride (MTC) (also known as Methylene Blue). In one embodiment, the method comprises the steps of, in order: nitrosylation (NOS); nitrosyl reduction (NR); thiosulfonic acid formation (TSAF); oxidative coupling (OC); Cr(VI) reduction (CR); isolation and purification of zwitterionic intermediate (IAPOZI); ring closure (RC); chloride salt formation (CSF); one of: sulphide treatment (ST); dimethyldithiocarbamate treatment (DT); carbonate treatment (CT); ethylenediaminetetraacetic acid treatment (EDTAT); organic extraction (OE); and recrystallisation (RX). The present invention also pertains to the resulting (high purity) compounds, compositions comprising them (e.g., tablets, capsules), and their use in methods of inactivating pathogens, and methods of medical treatment and diagnosis, etc., for example, for tauopathies, Alzheimer's disease (AD), skin cancer, melanoma, viral diseases, bacterial diseases, or protozoal diseases.
Abstract:
The present invention is directed to a novel multi-spectral contrast agent-enhanced polarized light technique that enables rapid imaging of large tissue fields. The imaging device includes a tunable monochromatic light source and a CCD camera. Linear polarizers are placed into both the incident and collected light pathways in order to limit the measurement volume to the superficial tissue layers. To enhance the tumor contrast in the image, aqueous solutions of toluidine blue or methylene blue are topically applied.