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PubMed1983

An investigation of aldehyde fuchsin staining of unoxidized insulin.

Aldehyde fuchsin is a standard stain for the secretion granules of pancreatic B cells. The participation of either insulin or proinsulin in aldehyde fuchsin staining is in dispute. There is some evidence that permanganate oxidized insulin is stained by aldehyde fuchsin. Aldehyde fuchsin staining of unoxidized insulin has not been investigated adequately despite excellent staining results with tissue sections. Unoxidized insulin and proinsulin suspended by electrophoresis in polyacrylamide gels were fixed with Bouin's fluid and placed in aldehyde fuchsin for one hour. Because the unoxidized proteins were not stained by aldehyde fuchsin, it was concluded that neither insulin or proinsulin are responsible for the intense aldehyde fuchsin staining of unoxidized pancreatic B cell granules in tissue sections. A series of controlled experiments was undertaken to test the effects of fixatives, oxidation and destaining procedures on aldehyde fuchsin staining of insulin, proinsulin and other proteins immobilized in polyacrylamide gels. It was demonstrated that only oxidized proteins were stained by aldehyde fuchsin and that cystine content of the proteins had no apparent relation to aldehyde fuchsin staining. It was concluded that neither insulin nor proinsulin is likely to be responsible for the intense aldehyde fuchsin staining of unoxidized pancreatic B cell granules in tissue sections.

Animals↗
PubMed1979

Uropharmacology: X. Central nervous system stimulants and depressants.

Several drugs that are utilized primarily for their effects on the central nervous system also affect lower urinary tract function. Most of these effects are produced by the action of these drugs on adrenergic and cholinergic receptors or by direct action of lower urinary tract musculature. Central nervous system stimulants and depressants which are known to affect the storage or evacuation role of the lower urinary tract are discussed.

Amphetamines↗
PubMed1980

Status epilepticus.

Status epilepticus may end fatally or may leave serious sequelae. Thus the physician must act quickly and appropriately to stop convulsions using the methods described. Supportive measures--maintenance of airway, protection from harm, maintenance of vital functions--must be accomplished before drug therapy is started. Metabolic abnormalities must be corrected. Striving for levels of antiepileptic drugs in the upper therapeutic range is best, and the physician must be prepared to deal with the side-effects and complications of these medications.

Anesthesia, General↗