Summary
Summary Pineal gland hormones
- Module
- Medicine (BIOCHEM)
- Institution
- Askham Bryan College
If you want to understand pineal gland hormones read this
[Show more]
Seller
Follow
Content preview
PINEAL GLAND HORMONES:Melatonin (Synthezized from amino acid Trp)
- Age dependent (highest in children)
- Secretion is highest at night.
Synthesis:
1. Hydroxylation of trp in position 5
2. Decarboxylation from tryp to serotonin
3. Acetylation from serotonin to acetyl-serotonin
4. Methylation of acetyl-serotonin into melatonin (SAM dependent)
Biorythm:
DAY: Adrenergic neurons are inhibited by light during the day
NIGHT:
1. Norepinephrine released during night activates beta receptors, which are coupled with G proteins.
2. These increase the activity of adenylate cyclase & cAMP (secondary messengers), which activates seratonin N-
acetyl transferase (pineal gland), catalyzing the secretion of melatonin.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller qusaielfires. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £3.91. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79751 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now