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Ioannis Melissanidis
Ioannis Melissanidis (Ιωάννης Μελισσανίδης), Greek artistic gymnast born 1977 in Germany; won floor exercise gold at Atlanta 1996 with 9.850, first Greek Olympic gymnastics gold since 1896, plus 1994 Worlds silver and European titles.
Ioannis Metaxas (Ιωάννης Μεταξάς)
Ioannis Metaxas (Ιωάννης Μεταξάς), 1871-1941, Greek army officer, prime minister, and dictator who established the 4th of August Regime (1936-1941) and rejected Mussolini's ultimatum on 28 October 1940.
Ioannis Mitropoulos
Ioannis Mitropoulos (Ιωάννης Μητρόπουλος), Greek gymnast born 1874 in Athens, Ethnikos GS; won rings gold at the 1896 Athens Olympics by split decision confirmed by Prince George, plus team parallel bars bronze.
Ioannis Plakiotakis
Ioannis Plakiotakis is a Greek New Democracy politician, deputy for Lasithi and First Vice President of the Hellenic Parliament, formerly Minister of Maritime Affairs and Island Policy.
Iobenguane
Iobenguane, also called metaiodobenzylguanidine or MIBG, is a norepinephrine analog radiolabeled with iodine: the iodine-123 form images tumors, and iodine-131 iobenguane, Azedra, treats pheochromocytoma and paraganglioma.
Iobitridol
Iobitridol (Xenetix) is a non-ionic, low-osmolar, tri-iodinated iodinated contrast medium by Guerbet, sold in Europe at 250-350 mg I/ml for CT, angiography, and urography; not marketed in the United States.
IOC Ethics Commission
The IOC Ethics Commission is the International Olympic Committee's standing ethics body, created in 1999 after the Salt Lake City bid bribery scandal to investigate complaints.
IOC Executive Board
The IOC Executive Board is the executive organ of the International Olympic Committee, responsible for administering the IOC between Sessions; it was founded in 1921 and has 15 members.
IOC Session
The IOC Session, the general meeting of International Olympic Committee members, is the IOC's supreme organ whose decisions are final; it convenes at least once a year.
IOC-recognised international federations
IOC-recognized international federations are international sports federations recognized by the International Olympic Committee whose sports are not on the Olympic program, including netball, korfball, sumo, and orienteering.
Iocetamic acid
Iocetamic acid (Cholebrine, Cholebrin, MP-620) is a tri-iodinated oral cholecystographic X-ray contrast medium, ATC V08AC07, approved by FDA in 1973 for Mallinckrodt's 750 mg tablet and now discontinued.
Iochpe-Maxion
Iochpe-Maxion is a Brazilian automotive parts holding company and one of the world's largest vehicle wheel manufacturers, producing steel and aluminum wheels and commercial vehicle chassis across 17 countries.
Iodamide
Iodamide (Uromiro, Odiston) is an ionic monomeric triiodinated benzoic acid contrast medium, ATC V08AA03, once used intravenously for urography and CT in Europe; largely replaced by nonionic low-osmolality agents.
Iodide
Iodide is the anion I⁻, the reduced ionic form of iodine that living organisms handle: the thyroid concentrates it from food and iodized salt to make thyroid hormones.
Iodine
Iodine (Jodium) is the chemical element with symbol I and atomic number 53, a halogen best known for its role in thyroid hormones, medical imaging, and disinfection.
Iodine (131I) metuximab
Iodine (131I) metuximab (Licartin, 利卡汀) is a Chinese 131I-labeled anti-CD147 (HAb18G) F(ab')2 radioimmunotherapy for hepatocellular carcinoma, approved 2007, dosed 27.75 MBq/kg via hepatic artery; production currently halted.
Iodine clock reaction
The iodine clock reaction, also known as the Landolt reaction, is a chemical kinetics demonstration where two colorless solutions mix and suddenly turn blue-black after a predictable delay.
Iodine deficiency
Iodine deficiency: insufficient dietary iodine for thyroid hormone synthesis, causing goiter, hypothyroidism, cretinism, and impaired cognition. Controlled mainly by universal salt iodization; measured by median urinary iodine concentration.
Iodine i 124 girentuximab
Iodine-124 girentuximab (Redectane, 124I-cG250) is a PET radiotracer of CAIX for detecting clear cell renal cell carcinoma; validated in REDECT (sensitivity 86.2%, specificity 85.9%), later superseded by 89Zr-girentuximab.
Iodine i 131 apamistamab
Iodine I 131 apamistamab (Iomab-B, 131I-BC8) is a murine anti-CD45 radioimmunoconjugate for myeloablative conditioning before transplant in relapsed/refractory AML; SIERRA met dCR endpoint but FDA requires an OS trial.
Iodine monochloride
Iodine monochloride (ICl) is an interhalogen compound of iodine and chlorine that exists as black crystals or a reddish brown oily liquid and is the active component of Wijs solution.
Iodine staining
Iodine staining is a bench histochemical test in which an iodine–iodide solution such as Lugol's colors starch blue-black and glycogen reddish-brown, giving a fast visual readout of these polysaccharides in plant and animal tissues.
Iodine value
The iodine value, or iodine number, is the mass of iodine absorbed by 100 grams of a fat or oil, measuring the unsaturation of its fatty acids.
Iodine-123
Iodine-123 is a radioactive isotope of iodine, decaying with a 13.2-hour half-life and a 159 keV gamma ray suited to SPECT imaging; it is used for thyroid studies and has largely replaced iodine-131 for diagnostics.
Iodine-125
Iodine-125 (¹²⁵I) is a radioactive isotope of iodine with a half-life of 59.4 days that decays by electron capture, used mainly in permanent-seed brachytherapy for localized prostate cancer.
Iodine-125 seed implantation
Iodine-125 seed implantation is a permanent low-dose-rate brachytherapy technique in which small radioactive seeds are placed inside or around a tumor, best established for localized prostate cancer.
Iodine-129
Iodine-129 is a long-lived radioactive isotope of iodine with a half-life of 15.7 million years, produced by cosmic rays and nuclear reactors, and used as an environmental tracer.
Iodine-131
Iodine-131 is a radioactive isotope of iodine with a half-life of about 8 days, used medically to treat hyperthyroidism and thyroid cancer and produced as a fission product.
Iodine-131 chimeric tumor necrosis therapy antibody (131I-chTNT)
131I-chTNT (Vivatuxin, 唯美生; brain tumor name Cotara) is an iodine-131-labeled human-mouse chimeric antibody targeting necrotic tumor cell nuclei, approved in China in 2003 for advanced lung cancer radioimmunotherapy.
Iodine-based optical clock
An iodine-based optical clock is an optical atomic clock whose laser is stabilized to a narrow absorption line of molecular iodine, making it simpler and more portable than ion or lattice clocks.