The meat and liver are eaten, though sharks from certain areas present a substantial risk of ciguatera poisoning (especially the liver, which contains a much higher concentration of the toxin than the meat).
It is noteworthy that the bead-based detection of BoNT/A produced much higher signals, at any given toxin concentration, than did the bead-free reaction mixture.
This suggests that venoms dominated by smaller proteins differ in the transcriptional effort expended on toxins relative to nontoxins in comparison to venoms characterized by high-molecular weight components, with small-component venoms expressing toxins at much higher levels relative to nontoxin production.
If they do, human exposure to these toxins may be much higher than the authors observed.
For example, genetically engineered plants, such as the genetically engineered maize 'Smartstax' (MON89034 × 1507 × MON88017 × 59122), express up to six Bt toxins, resulting in a much higher concentration of the potentially immunogenic proteins.
Toxin transcripts also possessed a much higher SNP density than nontoxins.
For such highly susceptible pests, the concentration of Bt toxin in Bt plants is much higher than the concentration needed to kill essentially all susceptible larvae (Fig. 1).
(7, or neutral, is normal).Yet Greenpeace says that toxin levels in the sludge are much higher than the government admits, with arsenic at 25 times the permitted amount, and significant levels of mercury and chrome.
This suggests that even a moderate resistance to the full Bti mixture measured in natural populations could hide much higher levels of resistance to some individual Bti Cry toxins.
The few feared systemic complications have been reported only when the toxin is used for large muscle disorders and in much higher doses than typically used for cosmetic indications.
