Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Define about Iodine Metabolism?
Now, we will very briefly study how iodine is absorbed, distributed in the body and ' excreted out. Like other nutrients, dietary iodide is either found free or bound to amino acids. It is primarily found as iodide or iodate. The latter form is reduced to iodide by glutathione in the gut. Iodide is rapidly 'and completely absorbed throughout the gastrointestinal tract and very little iodine appears in faeces. Iodine bound to amino acids is also absorbed but less efficiently. The thyroid hormones: thyroxine (T4) and triiodothyronine (T3) are also absorbed unaltered. Therefore, T4 medication can be administered orally.
After absorption, free iodide appears in the blood and circulates to all tissues. Thyroid gland traps most of the ingested iodide (80%). This is achieved against an iodide gradient (often 40 to 50 times plasma concentration) by sodium-dependent active transport system. This mechanism is regulated by thyroid stimulating hormone (TSN) secreted by pituitary. Thyroid takes up almost 120 mcg of iodide per day. Other tissues such as salivary glands, gastric mucosa, choroid plexus and mammary glands also concentrate the element by a similar active mechanism. Several sulphur-containing compounds such as thiocyanate, isothiocyanate and goitrill inhibit active transport mechanism by competing for uptake with iodide. Thus, iodide uptake by thyroid gland may be reduced. These are called goitrogens and their goitrogenic activity can be overcome by iodine supplementation.
Elaborate the term - Gill slits. Lateral opening in the wall of pharynx which allows water to enter into mouth and exit through the pharynx. This is one of the ancestral charac
phylum platyhelminthes
What is the meaning of Trocophore? This free-swimming ciliated larval stage is found in numerous animal phyla including Mollusca and Annelida. Larvae has a unique circle of pre
what are the organs of respiration in the lower form of animals?
Q. What is Regional wall motion abnormality? Ans. A critical occlusion of a coronary artery leads to myocardial ischemia which is manifested as regional wall motion abnorm
Sticky sweet method Richwil crown and bridge remover -It is a resin block of water-soluble , like a stick sweet -It is first softened in hot water -Placed on the restorat
Products of Cleavage (Morula and blastula) In several cases, the blastomeres in early cleaving stages tend to presume spherical shape like that of the egg earlier than cleava
Acute GAS pharyngitis should be treated promptly by penicillin or other antibiotics. Indian Council of Medical Research (ICMR) recommends that all cases of pharyngitis must receive
Drugs for Sexually Transmitted Infections Many infections can be transmitted during sexual contact. The text and tables that follow are limited to management of sexually transm
what is cromosome jumping
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd