Abstract Title:

Activity-dependent neural tissue oxidation emits intrinsic ultraweak photons.

Abstract Source:

Biochem Biophys Res Commun. 2001 Jul 27;285(4):1007-11. PMID: 11467852

Abstract Author(s):

Y Kataoka, Y Cui, A Yamagata, M Niigaki, T Hirohata, N Oishi, Y Watanabe

Article Affiliation:

Department of Anatomy and Cell Science, Kansai Medical University, 10-15 Fumizonocho, Moriguchi, Osaka, 570-8506, Japan.


Living organisms have been known to spontaneously emit ultraweak photons in vivo and in vitro. Origin of the photon emission remains unclear, especially in the nervous system. The spontaneous ultraweak photon emission was detected here from cultured rat cerebellar granule neurons using a photomultiplier tube which was highly sensitive to visible light. The photon emission was facilitated by the membrane depolarization of neurons by a high concentration of K+ and was attenuated by application of tetrodotoxin or removal of extracellular Ca2+, indicating the photon emission depending on the neuronal activity and likely on the cellular metabolism. Furthermore, almost all the photon emission was arrested by 2,4-dinitrophenylhydrazine, indicating that the photon emission would be derived from oxidized molecules. Detection of the spontaneous ultraweak photon emission will realize noninvasive and real-time monitoring of the redox state of neural tissue corresponding to the neuronal activity and metabolism.

Study Type : In Vitro Study
Additional Links
Additional Keywords : Biophotons : CK(95) : AC(28)

Print Options

Key Research Topics

Sayer Ji
Founder of GreenMedInfo.com

Subscribe to our informative Newsletter & receive The Dark Side of Wheat Ebook

Our newsletter serves 500,000 with essential news, research & healthy tips, daily.

Download Now

The Dark Side of Wheat

This website is for information purposes only. By providing the information contained herein we are not diagnosing, treating, curing, mitigating, or preventing any type of disease or medical condition. Before beginning any type of natural, integrative or conventional treatment regimen, it is advisable to seek the advice of a licensed healthcare professional.

© Copyright 2008-2023 GreenMedInfo.com, Journal Articles copyright of original owners, MeSH copyright NLM.