Talk:Luteinizing hormone

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Wiki Education Foundation-supported course assignment

This article was the subject of a Wiki Education Foundation-supported course assignment, between 3 September 2020 and 14 December 2020. Further details are available on the course page. Student editor(s): Wagnermr.

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Untitled

Please remove translation sequence information for LH and FSH. Completely unnecessary. There are links for that, this is an encyclopedia page. Shall we start providing the PDB info for all proteins on Wiki?

I don't like the discussion under normal levels. I had a student who used this page or another source with the same information. The ranges for normal levels do not inclede fluctuates during the menstral cycle. Also the importance to male physiology is over emphasized (relative to female). —Preceding unsigned comment added by 198.40.15.4 (talk • contribs)

I agree that every discussion of low, normal, and high levels needs to be broken out into Male and Female. In fact, the whole article reads rather vaguely as to which sex is being discussed at which point, or whether it applies to both. — Preceding unsigned comment added by 172.88.87.108 (talk) 21:07, 6 July 2015 (UTC)[reply]

Can you possibly correct the text as I'm not knowledgeable enough on the subject? - Alison ^✍ 19:45, 14 September 2006 (UTC)[reply]

Question

Is there a way to increase luteinizing hormone by consuming plant products? —The preceding unsigned comment was added by 71.211.133.60 (talk) 23:50, 26 April 2007 (UTC).[reply]

I do not have an answer to your question, but I will look into it. Furthermore, this page needs info, as does the FSH page, about the receptor and its function in terms of molecular biology. This page has great reproductive phsyio, but does not go much further unfortunately. Like I said on FSH, Ill be back. -anon —Preceding unsigned comment added by 158.93.190.42 (talk) 23:23, 9 March 2008 (UTC)[reply]

Gonadotropes

Someone should explain how both it and FSH are produced by the same cells. —Preceding unsigned comment added by 130.39.202.140 (talk) 03:33, 10 December 2008 (UTC)[reply]

LH Surge

I don't believe that your explanation of the LH Surge is proven or correct for that matter. Sources? Estradiol increases dramatically before LH surge, it is not momentarily inhibited by a spike in 17-hydroxyprogesterone.

Specifically, what is your source for the following statement?

"Eventually, when the follicle has fully matured, a spike in 17-hydroxyprogesterone production by the follicle inhibits the production of estrogen, leading to a decrease in estrogen-mediated negative feedback of GnRH in the hypothalamus, which then stimulates the release of LH from the anterior pituitary."

Estrogen goes from having negative feedback on GnRH and LH to a positive feedback, causing the LH surge. The mechanism you proposed above, I have never heard of and am quite sure is incorrect. Pncboyer85 (talk) 00:56, 16 January 2014 (UTC)[reply]

I have added a reference for the LH surge. In brief, progesterone upregulates the 17beta-hydroxysteroid dehydrogenase in the pituitary which in turn degrades estradiol to the more inactive estrone inside the cell and thus removing the inhibitory effect of estradiol. Administration of a progesterone antagonist before the preovulatory rise in progesterone postpone the LH surge both in humans (Pubmed id: 16854683) and rats (Pubmed id:9858129 and 9408709). — Preceding unsigned comment added by 80.71.132.71 (talk) 13:06, 29 March 2014 (UTC)[reply]

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Testosterone level induces GnRH secretion is incorrect.

In the section "Effects in males", second paragraph, it is stated that "When T levels are low, GnRH is released by the hypothalamus, stimulating the pituitary gland to release LH.^[11] As the levels of T increase, it will act on the hypothalamus and pituitary through a negative feedback loop and inhibit the release of GnRH and LH consequently.^{[citation needed]}".

Nowhere in the citation ^[11] stated that testosterone level directly regulates GnRH release from hypothalamus. Instead, GnRH in males is released as constant pulses every 2 hours,^[1] suggesting that testosterone level only regulate LH secretion from pituitary gland, although the mechanism is not well-known.

This paragraph is confusing. I have removed the "hypothalamus" part and I suggest taking deeper research and clarify the statement here. Hhthoj (talk) 07:51, 28 July 2019 (UTC)[reply]

References

^ Derman, Seth G.; McClamrock, Howard D.; Adashi, Eli Y. (2009). "Regulation of the Pituitary Response to Gonadotropin-Releasing Hormone". The Global Library of Women's Medicine. doi:10.3843/GLOWM.10285. ISSN 1756-2228.

LH article evaluation

Hello, The article does a good baseline job of explaining most things about LH. However, the article does look a little barren. To improve on this, I think it would be a great idea to include more pictures and to go further in depth on some of the topics. The section on the effects on females goes way more in depth than the section on the effects on males. I think it would be helpful to include more information about the role of LH in spermatogenesis. I am no expert on LH: What are some other sections that could be included when talking about LH that could help inform people like me? What are some other relevant topics regarding LH? Thank you. Wagnermr (talk) 17:19, 3 October 2020 (UTC)[reply]

Biology

Luteinizing hormone 41.223.119.42 (talk) 21:27, 16 June 2022 (UTC)[reply]

[1] Derman, Seth G.; McClamrock, Howard D.; Adashi, Eli Y. (2009). "Regulation of the Pituitary Response to Gonadotropin-Releasing Hormone". The Global Library of Women's Medicine. doi:10.3843/GLOWM.10285. ISSN 1756-2228.

[1]