Doctor insights on:
What Is The Function Of An Axon Terminal
Death: "Complete loss" would be incompatible with life. ...Read more
It's complex: 1. Polarization of the neuron's membrane; 2. Resting potential gives the neuron a rest; 3. Action potential: sodium ions move inside the membrane; 4. Repolarization: potassium ions move outside, and sodium ions stay inside the membrane; 5. Hyperpolarization: more potassium ions are on the outside than there are sodium ions on the inside; 6. Refractory period puts everything back to normal. ...Read more
VARIES: Several peripheral neuropathies are considered "axonal" problems, and these include alcohol nutritional, diabetes, solvent poisoning, porphyria, amyloidosis, but small fibre axonal problems may be seen in sarcoid, sjogren's, lupus, paraproteinemias, celiac disease. Symptoms include pain, numbness, weakness, inability to discern hot/cold. Perhaps problems with balance. ...Read more
Arms and legs: The neuron is the cell of the brain that is involved in learning and development. They need to be connected to other neurons to communicate. The axon is the arms or legs of the neuron that connect one neuron from another one. Without them, no communication and no learning and development. ...Read more
As above: Not every problem can be answered without. Evaluation; see your PCP for evaluation and advise. ...Read more
If the immune system attacked killed the neurons cell body axons dendrites nerves throughout the body is it possible and what diagnosis would this be?
Complicated: This description is quite improbable and sounds as it the person may be deceased. If you are having neurological deficiencies stronglysuggest that you see a neurologist and be evaluated. Good luck. ...Read more
Could lidocaine block the na channels at the ap or at the dendrites (before or after the axon hillock). Is it possible an ap fires?
Nonspecific: Na channell blockade is a characteristic of lidocaine, that what allows its use not only as a local anesthetic, but as antiarrhythmic agent as well. Although I must admit that I did not completely understand your question, the answer is yes, to my opinion. Hopefully you will be helped more by my colleagues, good luck. ...Read more
Nucleus not needed: Viral replication can occur wit no host protein requirement. However, viral particle assembly does require the host's golgi apparatus. Please see the following for an in depth review of the pathogenesis of rabies: http://www.Ncbi. Nlm. Nih. Gov/pmc/articles/pmc2600441/. ...Read more
Emg rpt. Chronic inactive assymet myopathic process, left leg. Changes supported of chron inactive axon loss.and Rt l5 radiculopathy. Pls explain. Ty?
With peripheral neuropathy, what conditions could cause damage to both axons and myelin as shown in nerve conduction tests? And can it be reversed?
Brief explanation: Most neuropathies affect myelin coverings (Schwann cell), but an advancing axonal neuropathy can secondarily affect the myelin. This is not simple, and you would be far better served by a Concierge consult, and/or find an experienced Medical School neurologist. Reversibility depends on causes and appropriate therapy. ...Read more
Foot Drop: Most often is the myelin sheath or insulation that is impacted. If the axons are effected it takes longer to recover if the causative reason is addressed. At about the 3-week mark after the occurrence it is easy to document the actual injury and extent with electrodiagnostic testing(ncs/emg). This would tell if demyelinating, axonal or combination of the two. This can help define prognosis. ...Read more
Can stem cells be used for regeneration of oligodendrocytes to remyelinate axons that have been degenerated due to alcoholism?
There is no evidence: For this to be the case presently. Unfortunately there is limited data in regard to the use of stems cell for most applications. Beyond stem cell transplants for bone marrow related disorders there are some accepted stem cells therapies for bone, skin and corneal diseases. There really isn't much presently for neurologic disorders . Maybe in the future though. ...Read more
Son is now 15 years old. Amblyopia/missing ganglion axons in center one eye. Noticed seizure and was told he had Lisch Nodules. Told nothing to do.
Followup needed: A Lisch nodule is a pigmented hamartomatous nodular aggregate of dendritic melanocytes affecting the iris. The fact that he has had a seizure is suggestive of associated condition called neurofibromatosis one. He needs to be seen by a neuroophthalmologist as well as evaluated for other lesions which can also affect different areas of the brain and skin. ...Read more
What happens if there are, are they terminal too or does it depend on how they function because they all operate differently then aids?
Please reformulate: It may be a typo, but your question is missing the subject. Please try to rephrase. ...Read more
Yes: Terminal cancer might be diagnosed early and depending on type of cancer, functional status, palliative interventions (to maximize quality of life) some people might be able to function 'normally' longer than others. Both the cancer and the treatments however will impact ability to function as time goes on. Ask for palliative care help early. ...Read more
By inflating cuffs: A patient lies on the eecp table, with inflatable cuffs or stockings on his legs all the way up to include his buttocks. In between heart beats (pulses), while the heart is at rest, the cuffs or stockings inflate from the calves to the thighs to the buttocks, thus forcing more blood to the heart and coronary arteries supplying the heart muscle. Cuffs or stockings deflate when the heart contracts. ...Read more
Rarely: Behçets disease is likely a vasculitis problem that results in ulcers, typically in or around mucous membranes (like the mouth). Prognosis has greatly improved in the last decade or two with more severe disease in those with eye symptoms and most severe in those with central nervous system symptoms. ...Read more
Unlikely.: Unclear what the actual diagnosis that was provided. However, most diseases with the name 'chronic' are likely not terminal as in a prognosis of months. If talking about chronic thromboembolism that leads to pulmonary hypertension then need to discuss with your lung doctor. As with most diseases, it depends on the cause and is the cause reversible or controllable or not. ...Read more
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