L-theanine improves intestinal barrier functions by increasing tight junction, Xiaoling Chen, Jan 2023

[Violeta]

L-theanine decreases the contents of serum D-lactic acid and diamine oxidase in weaned piglets.

L-theanine increases the expression of tight junction protein in jejunum and ileum of weaned piglets.

L-theanine reduces the release of pro-inflammatory cytokines in jejunal mucosa and ileal mucosa of weaned piglets.

L-theanine improves intestinal barrier function by inhibiting TLR4/p38 MAPK/NF-κB signaling pathway.

https://www.sciencedirect.com/science/article/pii/S1756464622004704

 

[Tsukareta]

so does L-glutamine apparently but I am a little scared to take it because I heard of this thing excitotoxicity, I read an article by LifeExtension that suggests its not likely to be an issue but I don't know enough to say whether thats true.

 

[BrightCandle]

Neither does much of anything for me.

 

[Violeta]

so does L-glutamine apparently but I am a little scared to take it because I heard of this thing excitotoxicity, I read an article by LifeExtension that suggests its not likely to be an issue but I don't know enough to say whether thats true.

This abstract indicates that it reduces excitation due to stress. L-theanine has a very calming effect. There are other studies listed underneath this one.

https://pubmed.ncbi.nlm.nih.gov/16930802/#:~:text=Abstract,glutamate receptors in the brain.

L-Theanine reduces psychological and physiological stress responses
Kenta Kimura 1, Makoto Ozeki, Lekh Raj Juneja, Hideki Ohira
Affiliations expand

• PMID: 16930802
• DOI: 10.1016/j.biopsycho.2006.06.006

Abstract
L-Theanine is an amino acid contained in green tea leaves which is known to block the binding of L-glutamic acid to glutamate receptors in the brain.

 

[kangaSue]

Not for this long weaned old sow. L-Theanine, and green tea for that matter stir up my gut (gastroparesis) symptoms to make me crook as a dog