2001
DOI: 10.1006/exnr.2000.7583
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Botulinum A Toxin: Dysport Improvement of Biological Availability

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Cited by 55 publications
(26 citation statements)
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“…O Dysport ® possui concentração recomendada pelo fabricante de 50 U/ml. Porém, acrescentando-se albumina abaixa-se sua concentração em cerca de 30%, com o mesmo efeito e com redução do custo e menor chance de desenvolver anticorpos (38) . A avaliação da qualidade de vida por questionário com o uso da toxina botulínica revelou melhora, mas acompanhada do medo de que a medicação perca efeito e depressão (39) .…”
Section: Discussionunclassified
“…O Dysport ® possui concentração recomendada pelo fabricante de 50 U/ml. Porém, acrescentando-se albumina abaixa-se sua concentração em cerca de 30%, com o mesmo efeito e com redução do custo e menor chance de desenvolver anticorpos (38) . A avaliação da qualidade de vida por questionário com o uso da toxina botulínica revelou melhora, mas acompanhada do medo de que a medicação perca efeito e depressão (39) .…”
Section: Discussionunclassified
“…According to the European pharmacopeia rules, assessment of BoNT biological activity using the mLD 50 bioassay (European manufacturers) needs nonspecific BoNT binding is prevented by diluting the toxin in a medium containing an additional quantity of gelatin or HSA. Note that none of the commercial products seems to contain enough HSA to fully prevent nonspecific absorption of toxins/neurotoxins by the vial and syringe walls before injection [260]. Therefore, the way the mLD 50 assay is performed by the manufacturers [e.g., adding gelatin for measuring the biological activity of Dysport (AbobotulinumtoxinA); adding HSA for assessing IncobotulinumtoxinA [280]; or without adding anything else in the traditional manner to assess OnabotulinumtoxinA] greatly affects the number of mLD 50 determined for a similar amount of BoNT (by mass) [259].…”
Section: Units Of Biological Activitymentioning
confidence: 99%
“…Recent observations further support the notion that low-dose botulinum therapy may show relevant therapeutic efficacy. Bigalke et al [42]in a single-blinded crossover study in 2-patient groups with dystonia reported clinical efficacy of low-dose BTX (50 MU/ml Dysport, physiological saline solution, mean administered doses 235 and 262 MU) in cervical dystonia when EMG guidance was used. Given their results and those of our pilot study, further controlled studies addressing optimal dosages and dilution of BTX-A in therapeutic preparations would seem to be rewarding.…”
Section: Discussionmentioning
confidence: 99%