We have located links that may give you full text access.
Evaluation Studies
Journal Article
Technetium-99 m labeling and evaluation of olsalazine: a novel agent for ulcerative colitis imaging.
Journal of Labelled Compounds & Radiopharmaceuticals 2015 June 31
Ulcerative colitis is a chronic disease having a regressive nature. Commonly used diagnostic methods have the disadvantage to be invasive, time-consuming, and expensive. Therefore, a new sensitive method for the detection and monitoring of disease activity is urgently needed in clinical practice. In the current investigation, radio complexation of olsalazine with technetium-99m, its characterization, and optimization of the labeling conditions were explored. Optimum radiochemical yield of (99m) Tc-olsalazine (97.6% ± 1.8%) was obtained via direct complexation with technetium-99m (~200 MBq) in the presence of stannous chloride dihydrate (100 µg) as reducing agent at pH 6. It was observed that the complex showed significant in vitro stability in serum at 37°C for more than 11 h. The computer-generated optimized geometries of the (99m) Tc-olsalazine were reported, and biodistribution studies were carried out using chemically and microbiologically mice-induced ulcerative colitis models. The tracer showed a good localization in both models and was excreted mainly via liver and to some extent via kidney. Imaging can be performed at 1-2 h post-injection; at that time, the background activity has cleared, and the activity is concentrated in the target site. All the gathered biological data supported the usefulness of (99m) Tc-olsalazine as a potential imaging agent for ulcerative colitis.
Full text links
Related Resources
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app