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abew4me

10/02/20 10:28 PM

#273481 RE: falconer66a #273476

Wow...well done, falconer!

I really enjoyed the way you broke down that article in layman's terms. Made it very easy to read and understand.

Thank you.

McMagyar

10/02/20 11:51 PM

#273490 RE: falconer66a #273476

Nice

RedShoulder

10/03/20 1:14 AM

#273494 RE: falconer66a #273476

Well said falconer, one of the best informative science relating post to Anavex's A2-73 Blarcamesine I've seen here recently.

Especially informative to new eyes just showing up.

XenaLives

10/03/20 2:52 AM

#273495 RE: falconer66a #273476

Also interesting, notice how recent this information is:

The glymphatic and lymphatic systems
A fundamental tenet of brain homeostasis is that protein clearance must approximate protein synthesis. Is removal of protein waste also controlled by the sleep-wake cycle? Until 2012 it was believed that the brain, singular among organs, was recycling all of its own protein waste (21). Only a small number of proteins were known to be transported across the blood-brain barrier, and these did not include most of the primary proteins made or shed by brain cells (22). In the absence of lymphatic vessels or any overt pathways for fluid export, it was unclear how protein waste might exit the mature brain parenchyma. The default conclusion was that the classical cellular protein degradation pathways—autophagy and ubiquitination—must be responsible for all central nervous system (CNS) protein recycling (23).

This supposition, that the brain must recycle its own waste, was questioned after the discovery of the glymphatic system (24). The glymphatic system is a highly organized cerebrospinal fluid (CSF) transport system that shares several key functions, including the export of excess interstitial fluid and proteins, with the lymphatic vessels of peripheral tissues (Fig. 1A). Indeed, both the brain’s CSF and peripheral lymph are drained together into the venous system, from which protein waste is removed and recycled by the liver (25). Yet brain tissue itself lacks histologically distinct lymphatic vessels. Rather, fluid clearance from the brain proceeds via the glymphatic pathway, a structurally distinct system of fluid transport that uses the perivascular spaces created by the vascular endfeet of astrocytes (26). The endfeet surround arteries, capillaries, and veins, serving as a second wall that covers the entire cerebral vascular bed. The perivascular spaces are open, fluid-filled tunnels that offer little resistance to flow. This is in sharp contrast to the disorientingly crowded and compact architecture of adult brain tissue, the neuropil, through which interstitial fluid flow is necessarily slow and restricted—akin to a marsh, flowing to the glymphatic system’s creeks and then rivers (27). The glymphatic system’s perivascular tunnels are directly connected to the subarachnoid spaces surrounding the brain, from which CSF is rapidly driven into deep regions of the brain by the cardiac rhythm–linked pulsations of the arterial wall (28). The vascular endfeet of astrocytes, a primary subtype of glial cells, surround the perivascular spaces and can be regarded as open gates for fluid influx into the neuropil. The astrocytic endfeet are connected by gap junctions, and almost 50% of their plasma membrane facing the vessel wall is occupied by square arrays composed of the water channel protein aquaporin-4 (AQP4) (29). Deletion of AQP4 channels in mice reduces both the influx of CSF tracers and the efflux of solutes from the neuropil (24, 30, 31). Given this pathway’s functional similarities to the peripheral lymphatic system, we termed this astrocyte-regulated mechanism of brain fluid transport the “glymphatic (glial-lymphatic) system.”



https://science.sciencemag.org/content/370/6512/50.full

frrol

10/03/20 3:39 AM

#273499 RE: falconer66a #273476

It would be terrific if our trials show our particular S1 agonist to be medically effective. We'll be knowing more on this soon.

JWC3

10/03/20 9:33 AM

#273515 RE: falconer66a #273476

The RWE given by Dr. Stephen MacFarlane concerning better better sleep in both the P2a AD and the P2b/3 AD clinical trials gives considerable witness to the patient sleep improvement provided by A 2-73! Thanks for that post.

georgejjl

10/03/20 12:09 PM

#273536 RE: falconer66a #273476

Autophagy happens while we're sleeping



It's just as important for our cells to clean themselves out and clear away debris. It's a process most of us don't think about—and haven't even heard of—called autophagy (which means self-eating).



https://www.cedars-sinai.org/blog/autophagy.html

New preclinical data establishes ANAVEX®2-73 as a modulator of autophagy through Sigma-1 receptor activation, possibly needed for the prevention and treatment of neurodegenerative conditions including Alzheimer’s disease, Parkinson’s disease and ALS



The current findings show for the first time that activation of Sig-1R with ANAVEX®2-73 leads to the prominent induction of the autophagy “cellular recycling” process and enhanced protein clearance in cells. The study, led by Christian Behl et. al. of the University Medical Center at Johannes Gutenberg University, in Mainz, Germany, has been published in the peer-reviewed journal, Cells



https://www.anavex.com/anavex-life-sciences-reports-publication-of-new-data-that-show-anavex2-73-induces-cellular-recycling-process-linked-to-the-prevention-and-treatment-of-age-associated-diseases/

https://www.mdpi.com/2073-4409/8/3/211/htm

Good luck and GOD bless,

Boopka

10/03/20 3:27 PM

#273569 RE: falconer66a #273476

Falconer, as we continue to weave through Anavex's trials and tribulations towards their inevitable, hopefully, multiple approvals I want to sincerely thank you for your continued contributions. You have not only demonstrated thorough knowledge of the subject matter but the ability to elevate the knowledge of individuals like myself in these areas. No small feat!
Furthermore, I have noticed that you have a real ability to sense the mood of the classroom (our mb) and to then write well-written, highly educated pieces to calm the classroom by silencing ill-intentioned individuals.
Thanks again and you must have been one heck of a teacher! GL