Showing posts with label treatment. Show all posts
Showing posts with label treatment. Show all posts

Monday, September 09, 2013

Encouraging new treatment for dementia is emerging

Some of my friends email me or post to me on Facebook when they see a science article talking about Alzheimer's or dementia, as everyone knows this is the cause nearest to my heart.  I do read them all.  Some I just shrug and say "yeah maybe" or "you wish" but this one...well, this one seems promising.
I'll let the first paragraph of the article speak for itself:

The first experimental drug to boost brain synapses lost in Alzheimer’s disease has been developed by researchers at Sanford-Burnham. The drug, called NitroMemantine, combines two FDA-approved medicines to stop the destructive cascade of changes in the brain that destroys the connections between neurons, leading to memory loss and cognitive decline.

To me, that means that they shouldn't have to get FDA approval, right?  This could be an off-label usage?  I'm trying to understand how the drugs are being combined.  I'm thinking of PhenFen, that diet drug that was two other drugs combined. (And it ended up killing people, didn't it? Maybe that's a bad example...)

The decade-long study...shows that NitroMemantine can restore synapses, representing the connections between nerve cells (neurons) that have been lost during the progression of Alzheimer’s in the brain.

That's A LOT to promise.   And they aren't done promising yet.  They are abandoing the old method of looking at the "amyloid beta plaques and neurofibrillary tangles" (what the drug my dad tested was looking at) in favor of something different.

To try to dumb down the science in the article a bit, the researchers found that the plaques didn't harm the neurons directly, but they did cause an overabundance of a chemical (glutamate) to be released, and that overabundance is what harmed the neurons.  If I understand it correctly, it seems to burn out the "locks" (receptors) on the neurons that glutamate is the "key" to.  A drug called Metamine can target those receptors, but it turns out that an overdose of glutamate also causes the receptors to repel the Metamine, meaning it's not as effective as it should be.  The researchers also discovered that part of the nitroglycerine molecule (the heart drug) can also attach to that receptor.  Working together, the piece of nitro can allow the metamine to bond to the receptor and keep it from burning out.

That would be good enough, to say that it would stop dementia in its tracks.  Have your loved one with a bit of impairment, maybe you have to drive him around or make a picture menu for the remote controls of the house, but better than the slow slide into oblivion that dementia offers now, right?

But wait, there's more.

By shutting down hyperactive eNMDA receptors on diseased neurons, NitroMemantine restores synapses between those neurons. “We show in this paper that memantine’s ability to protect synapses is limited,” (Stuart A) Lipton (MD, PhD) said, “but NitroMemantine brings the number of synapses all the way back to normal within a few months of treatment in mouse models of Alzheimer’s disease. In fact, the new drug really starts to work within hours.” 

Yes, it RESTORE NEURONS TO NORMAL.  In mice for now.  


Screenprint of original article

Monday, August 29, 2011

non pharma treatments for Alzheimer's/Dementia

There is a lovely letter here, to President Obama, about non-pharmaceutical treatments for Alzheimer's and dementia.
It reads, in part, "Drugs can't give people with dementia a life worth living. Non-pharmacological interventions can!" and includes a link to a petition to sign.
Hey, I think everything and everything possible should be thrown at Alzheimer's, including voodoo and the kitchen sink.  Sacrifice a chicken, then fry it up and eat it--it was gonna die anyway, right?  

Thursday, June 18, 2009

Trepanation as an Alzheimer's treatment?!

I found this rather baffling New Scientist article about how trepanation (drilling a hole in the skull to relieve pressure) may be a valid treatment for Alzheimer's and other forms of dementia.
Maybe it's because I'm not a scientist (new or otherwise) but I know my dad's brain was atrophied.  Tiny.  Did not fill his skull anymore.  And in fact, that is why he did not die sooner from his two bad falls-with-brain-injury because there was plenty of room for his injured brain to swell.  So I'm confused as to why venting someone's skull when their brain is already tiny is going to help.
(Yuri Moskalenko) is exploring the idea that people with Alzheimer's disease could be treated by drilling a hole in their skull. In fact, he is so convinced of the benefits of trepanation that he claims it may help anyone from their mid-40s onwards to slow or even reverse the process of age-related cognitive decline.
....
As we age, cerebral blood flow decreases, and the earlier this happens the more likely someone is to develop early onset dementia. It remains unclear, however, whether declining cerebral blood flow is the cause, or an incidental effect of a more fundamental change.
....
As we age, the proteins in the brain harden, preventing this system from working as it should. As a result, the flow of both blood and cerebrospinal fluid is reduced, impairing the delivery of oxygen and nutrients as well as the removal of waste. Moskalenko's research suggests that this normally begins between the ages of 40 and 50. Moreover, in a study of 42 elderly people with dementia, he found that the severity of their cognitive disorder was strongly correlated with cranial compliance: those with the severest dementia had the lowest compliance.
Ack.  I'm going to be 41 in a couple of weeks.  Do I need my skull ventilated?!
I guess I am too fixated on the brain atrophy part of Alzheimer's (not mentioned at all in the article) to understand how opening the skull would help fluid circulate.
trepanation treats Alzheimer's
image source=article source
screenprint of article