PubMed · 13903821
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T J HALEY, A M FLESHER, L MAVIS. 1962-09-08. Complex amine oxides with radioprotectant properties.. https://doi.org/10.1038/1951012a0
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Use of excess quantity of additives such as 1-hydroxybenzotriazole, 1-hydroxy-7-azabenzotriazole, or 3,4-dihydro-3-hydroxy-4-oxo-1,2,3-benzotriazine could retard carbodiimide-mediated peptide coupling or aminolysis of the active esters in organic solvents generally employed in peptide chemistry. Solubility test and infrared spectroscopic data suggested that the amine components interacted with the additives to form some aggregates, which were less reactive toward acylation. The use of 0.1 equimolar additives against carboxyl components or carbodiimides was advantageous for rapid and efficient coupling reaction, especially when the carboxyl components were amino acids carrying urethane type N-protecting groups.
We report on a female patient with brachioradial pruritus, in whom the cause could be verified by purposeful diagnostics (e. g., MRI). The clinical symptoms with localized itching result from circumscribed nerve root compression and hyperexcitation of the nerve fibers. Under treatment with gabapentin, an anticonvulsant with a very good analgesic and good antipruritic effect, the itch ceased and the skin changes healed. This case shows that this special form of neuropathic itch requires targeted therapy, which apart from symptomatic treatment should primarily focus on remedying the cause, if feasible.
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