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The passage of ions across biological membranes is regulated by passive and active mechanisms. Passive ion diffusion into organs depends on the ion-pairing properties of salts present in the serum. Potassium ions could affect brain activity by crossing the blood-brain barrier (BBB) and its
Gitelman's syndrome is a rare autosomal recessive tubulopathy caused by a defect of the thiazide-sensitive sodium chloride co-transporter at the distal tubule, leading to hypokalemia, metabolic alkalosis, hypomagnesemia, hypocalciuria and low-to-normal blood pressure. Clinical features include
Intracortical injection of iron ions has been used to model post-traumatic epilepsy. The results obtained using these models suggest that oxidation of neural membranes by active oxygen free radicals may be involved in the etiology of post-traumatic epilepsy. This is a study of the effects of
The mechanisms of fluid and solute abnormalities that should be considered in any patient with severe hyperglycemia include changes in the total amount of extracellular solute, osmotic diuresis, intake of water driven by thirst, and influences from associated conditions. The absence of osmotic