Talk:Thyroxine

message: I'm thinking of merging thyroxine and triiodothyr.. T3 into one page, possibly thyroid hormone. (In the same way fibrin and fibrinogen go to the same place. Also saccule and utricle.)
Normally i'm not the greatest fan of over-merging, but T4 and T3 are normally used interchangably (or at least at the same time), and the differences are probably best discussed on the one page.
If anyone's strongly opposed speak now. Or just reverse it later :-) tb 00:12, 21 Mar 2004 (UTC)
replies: text: They are different chemically, and I would not merge thyroxine and tri-iodothyronine.  It is an over simplification to consider thyroxine as only a pro-hormone.  The pituitary thyroxine receptor appears to be more specific for thyroxine than T3.  Thyroxine itself does have a few actions distinct from being a source of T3, and is also probably the major hormone controlling development in amphibians.  I would use this page as a chemical description of thyroxine, and have discussionss on physiology, gopiter, animals and comparative endocrinology on there separate pages.  You can always click on "What links here".Pustelnik 00:42, 13 July 2007 (UTC)
thread_title: Untitled

message: Charles Robert Harington discovered the structure of thyroxine. JFW | T@lk 23:25, 27 March 2007 (UTC)
replies: text: I agree. I have in the meantime changed the caption to "Transformations". Eric Kvaalen (talk) 17:51, 14 April 2008 (UTC)
thread_title:  Structure 

message: I think levothyroxine should be merged into this article. The two articles discuss exactly the same substance, one as a hormone, the other as a drug. I don't think there is a sufficiently good reason to separate them, and a lot of information which is in the articles (or should be) should be in both, which would cause even more overlap. Eric Kvaalen (talk) 17:51, 14 April 2008 (UTC)
replies: text: Same here ,i agree they should be merged.Megistias (talk) 22:04, 17 April 2008 (UTC)
replies: text: Lets merge it.Megistias (talk) 21:27, 18 April 2008 (UTC)

text: It's been four months since the merger proposal and nothing's changed. I'm removing the proposal. If someone has a reasonable argument for reconsidering the merger, it can be rediscussed here. svadhisthana (talk) 17:28, 13 August 2008 (UTC)

text: Please support your statements. You have simply denied everything I wrote, without justifying anything. Why do you say that natural thyroxine and levothyroxine are different substances? What is the difference? Eric Kvaalen (talk) 13:36, 19 February 2012 (UTC)
replies: text: Please reverse this merger. The simplest and most important reason is that aside from it's function as a thyroid hormone thyroxine is simply a chemical compound that should have its own article. For instance, go look at the triiodothyronine page and you'll see the standard chemical description page there with molecular weight, chemical formula, IUPAC name, etc. - a wealth of information uninteresting to and therefore absent from the thyroid hormone page this link now redirects to. The original thyroxine page should be restored with all of this chemical information. Regarding some of the above discussion - it is true that thyroxine produced in the thyroid can be either enantiomer and that the isolated levo-thyroxine enantiomer is what is in the drug. This is specifically interesting because levothyroxine can only be converted to "normal" T3, not "reverse" T3 - which is the other enantiomer. This has physiological consequences for those on the drug. So I think this is good information that we should add to the Thyroxine page once it is restored - but I don't think a separate page is needed for that. We just need the separate Thyroxine page back to have a place for that information to go - along with all of the now absent chemical information since merger with the Thyroid Hormones article. How do we/who can reverse this? Thanks...206.112.75.195 (talk) 18:49, 10 August 2015 (UTC)
thread_title:  Merger proposal 

message: I saw an episode of Brainiac today, and in this episode, they "demonstrated" (i take their demonstrations with a grain of salt) how low temperatures highten our perception of pain.
They've explained this by saying that when the body detects low temperatures, the thyroid reacts by secreting larger doses of thyroxine, which makes the nerves more sensitive to pain.
I'm a layman, and so i don't know if this is factual. My point in telling this, is that information on the physiological effects of T4 seems to be missing from the article, although the article vaguely states that "T4 is involved in controlling the rate of metabolic processes in the body and influencing physical development", it is not clear what these metabolic processes are, and what kind of an influence it has on physical development.
--62.195.149.168 (talk) 17:41, 14 September 2010 (UTC)
replies: text: I suggest you add what you know/find to the article, with references of course. Generally speaking this article is unacceptably brief especially since its already been around for more than 3 years. Jahibadkaret (talk) 12:05, 19 November 2010 (UTC)
thread_title:  T4 and cold? 

message: Nei1 (talk) 21:57, 14 January 2011 (UTC)
thread_title:  What does it do?