Structurally, it increased synaptic density (synaptophysin) in females and reduced astrogliosis (GFAP) in both sexes
Beyond POTS, autonomic dysfunction in long COVID can present as: Dysregulated sweating Impaired gastrointestinal muscle contractions, causing constipation, pain, nausea, or weight loss Temperature dysregulation An exaggerated fight-or-flight response The vagus nerve within this systemthe primary parasympathetic nerve connecting the brain to the gut, heart, and lungsappears to be particularly vulnerable to COVID-19-related damage, with implications for heart rate variability, gut function, and the inflammatory regulatory role the vagus nerve normally performs
Bone marrow stromal cell implantation for peripheral nerve repair
Issues such as small sample sizes, lack of control groups, and short follow-up periods further weaken the validity of these studies
You may notice some unusual sensations in your body, but nothing too drastic or overwhelming
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