A very interesting email arrived today, querying the effect of red LED lights on eyes.
It is all about the wavelength, not the type of light.
Red and near infrared wavelengths are not harmful to the eyes.
In fact, red wavelengths (especially 670nm, a deep red colour) are showing promise as a treatment for Age-related Macular Degeneration, a devastating progressive eye condition.
The lead researcher is Prof Glen Jeffery, professor of neuroscience at University College London.
Here’s a list of Prof Jeffrey’s publications.
And here’s a link to one of his articles.
If you are planning to make your own light hat device, make sure that you purchase red LEDs. There are LED strips available with lots of colours – avoid these as a rainbow isn’t helpful.
You just want red or near infrared wavelengths.
Recently, photobiomodulation, the application of red to
infrared light on body tissues has been reported to alter the course of aged decline*.
This quote comes from a very recently published article Does Photobiomodulation influence ageing? Continue reading “Red light and Ageing”
Prof John’s presentation at the recent Melbourne conference covered two areas:
- the development of the research into red &near infrared light and Parkinson’s disease; and
- the results of recent case-studies of four Tasmanians using Eliza light hats.
I’m not able to post the exact presentation he gave a few weeks ago, but I am able to give you detailed notes that I took on 6 December 2016, when Prof John spoke to the group of people involved in the Eliza activities in Tasmania. These notes cover point (1) above.
The information Prof John covered in point (2) has been accepted for publication in a peer-reviewed journal, and when that article appears, I’ll be able to post it on the blog. That might not be for a few months, so keep watch on the blog. Continue reading “Prof John Mitrofanis presentation”
I’ve been reading an interesting 2016 review article called Cytokine networks in neuroinflammation.*
Click here for the abstract.
Some of the differences between neuroinflammation and neurodegeneration are beautifully explained. Both diagrams come from this article.
Cells in our body and brain produce cytokines, small proteins that are powerful and wilful little beasties. They provide a very effective means of cell communication, and can “orchestrate complex multicellular behaviour”.
Over 300 different cytokines have been identified, but some of them have shown that in one situation they will behave in one way, but in another situation the same cytokine will do the complete opposite.
Cytokines are part of the body and brain’s response to something going wrong. But cytokines themselves can go haywire (called cytokine network dysfunction or dysregulation) and set up and maintain cascades of activity that can ultimately cause harm to the tissue.
Continue reading “Neuroinflammation vs Neurodegeneration”