Use the labels in the right column to find what you want. Or you can go thru them one by one, there are only 33,020 posts. Searching is done in the search box in upper left corner. I blog on anything to do with stroke. DO NOT DO ANYTHING SUGGESTED HERE AS I AM NOT MEDICALLY TRAINED, YOUR DOCTOR IS, LISTEN TO THEM. BUT I BET THEY DON'T KNOW HOW TO GET YOU 100% RECOVERED. I DON'T EITHER BUT HAVE PLENTY OF QUESTIONS FOR YOUR DOCTOR TO ANSWER.
Changing stroke rehab and research worldwide now.Time is Brain!trillions and trillions of neuronsthatDIEeach day because there areNOeffective hyperacute therapies besides tPA(only 12% effective). I have 523 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:
My blog is not to help survivors recover, it is to have the 10 million yearly stroke survivors light fires underneath their doctors, stroke hospitals and stroke researchers to get stroke solved. 100% recovery. The stroke medical world is completely failing at that goal, they don't even have it as a goal. 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 lays out what needs to be done to get stroke survivors closer to 100% recovery. It's quite disgusting that this information is not available from every stroke association and doctors group.
Monday, May 11, 2026
Disentangling causality in brain aging: The complex interplay between glial senescence, neuroinflammation, and neurodegeneration
Do you prefer your doctor, hospital and board of director's incompetence NOT KNOWING? OR NOT DOING? Your choice; let them be incompetent or demand action!
Systematic causality framework applied using Bradford Hill criteria.
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Senescent glia causally initiate inflammation through SASP mechanisms.
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Bidirectional causal loops amplify pathology beyond linear models.
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Clinical trials provide interventional evidence for causal relationships.
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Timing determines causal intervention efficacy: early vs. late stage.
Abstract
The aging brain is characterized by accumulation of senescent glia, chronic neuroinflammation, and vulnerability to neurodegeneration. While their co-occurrence is established, causal relationships remain poorly understood—a critical gap for developing mechanism-based therapies rather than symptomatic treatments. This review examines evidence for causality among glial senescence, neuroinflammation, and neurodegeneration using Bradford Hill criteria, longitudinal studies, genetic approaches, and senolytic trials. Glial senescence in astrocytes and microglia initiates neuroinflammatory cascades through the senescence-associated secretory phenotype (SASP), creating self-perpetuating cycles driving neuronal dysfunction. However, neuroinflammation also emerges as a primary event triggered by peripheral signals, blood-brain barrier breakdown, or pathogens, subsequently inducing glial senescence. Neuronal damage generates inflammatory signals activating glia, indicating bidirectional causality. Disease-specific patterns are heterogeneous: in Alzheimer's disease, early microglial activation may precede amyloid pathology, while in Parkinson's disease, gut-brain inflammation may initiate central pathology. Common feed-forward loops amplify initial insults—senescence, inflammation, or protein aggregation—transcending linear causality. We propose a framework recognizing critical temporal windows and tipping points, distinguishing reversible from irreversible stages. Anti-inflammatory and senolytic interventions show promise preventively or early but limited efficacy in advanced disease, emphasizing intervention timing. Outstanding questions include identifying earliest causal events, determining points of no return, and understanding genetic-environmental modification of causal pathways. Addressing these requires longitudinal multi-omics studies and interventional trials. Establishing causation beyond correlation enables precision medicine targeting root causes, offering hope for preventing age-related cognitive decline and neurodegeneration.
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