Deans' stroke musings

Changing stroke rehab and research worldwide now.Time is Brain!Just think of all the trillions and trillions of neurons that DIE each day because there are NO effective hyperacute therapies besides tPA(only 12% effective). I have 493 posts on hyperacute therapy, enough for researchers to spend decades proving them out. These are my personal ideas and blog on stroke rehabilitation and stroke research. Do not attempt any of these without checking with your medical provider. Unless you join me in agitating, when you need these therapies they won't be there.

What this blog is for:

Shortly after getting out of the hospital and getting NO information on the process or protocols of stroke rehabilitation and recovery I started searching on the internet and found that no other survivor received useful information. This is an attempt to cover all stroke rehabilitation information that should be readily available to survivors so they can talk with informed knowledge to their medical staff. It's quite disgusting that this information is not available from every stroke association and doctors group.
My back ground story is here:http://oc1dean.blogspot.com/2010/11/my-background-story_8.html

Tuesday, August 9, 2016

Paradoxical Motor Recovery From a First Stroke After Induction of a Second Stroke Reopening a Postischemic Sensitive Period

I would never voluntarily do a second stroke and I doubt this would ever get enough test subjects to prove if this works in humans. I would really question the conclusion that came out of this. Have you proven that the same exact area was infarcted?
Earlier reported here: But it seems to be the same research, just now in print.

'Window of recovery' can reopen after stroke


http://nnr.sagepub.com/content/30/8/794?etoc
  1. Steven R. Zeiler, MD, PhD1
  2. Robert Hubbard1
  3. Ellen M. Gibson1
  4. Tony Zheng1
  5. Kwan Ng, MD, PhD2
  6. Richard O’Brien, MD, PhD3
  7. John W. Krakauer, MD1
  1. 1Johns Hopkins University, Baltimore, MD, USA
  2. 2UCLA, Los Angeles CA, USA
  3. 3Duke University, Durham, NC, USA
  1. Steven R. Zeiler, MD, PhD, The Johns Hopkins Hospital, Department of Neurology, Phipps 443, 600 N. Wolfe Street, Baltimore, MD 21287, USA Email: sz@jhmi.edu

Abstract

Background and objective. Prior studies have suggested that after stroke there is a time-limited period of increased responsiveness to training as a result of heightened plasticity—a sensitive period thought to be induced by ischemia itself. Using a mouse model, we have previously shown that most training-associated recovery after a caudal forelimb area (CFA) stroke occurs in the first week and is attributable to reorganization in a medial premotor area (AGm). The existence of a stroke-induced sensitive period leads to the counterintuitive prediction that a second stroke should reopen this window and promote full recovery from the first stroke. To test this prediction, we induced a second stroke in the AGm of mice with incomplete recovery after a first stroke in CFA.  
Methods. Mice were trained to perform a skilled prehension (reach-to-grasp) task to an asymptotic level of performance, after which they underwent photocoagulation-induced stroke in CFA. After a 7-day poststroke delay, the mice were then retrained to asymptote. We then induced a second stroke in the AGm, and after only a 1-day delay, retrained the mice.  
Results. Recovery of prehension was incomplete when training was started after a 7-day poststroke delay and continued for 19 days. However, a second focal stroke in the AGm led to a dramatic response to 9 days of training, with full recovery to normal levels of performance.  
Conclusions. New ischemia can reopen a sensitive period of heightened responsiveness to training and mediate full recovery from a previous stroke.

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