Résumé
A retrospective analysis of a case of death from sudden convulsions caused by oral high-dose diquat was conducted, and the mechanism and treatment of central damage caused by diquat were investigated to lay the foundation for increasing the success rate of treatment of high-dose diquat poisoning. At the same time, at the same time, our clinical treatment experience has also been accumulated.
Sujets)
Humains , Diquat , Intoxication , Études rétrospectives , Crises épileptiquesRésumé
The present study investigated the influence of the methyl jasmonate and salicylic acid elicitors on the formation of phenylethanoid glycosides (PeG) in the suspension cultures of Cistanche deserticola. The results showed that methyl jasmonate and salicylic acid enhanced greatly the accumulation of PeG and echinacoside (Echin), but their optimum elicitation dosage and addition time were different. The yields of PeG and Echin were significantly increased in the presence of 5 micromol/L methyl jasmonate on day 14 (up to 2.59-fold and 3.82-fold, respectively), whereas treated with 50 micromol/L salicylic acid on day 28, the maximum content of them were, respectively, 2.71 and 3.16-fold higher than the untreated cell cultures.
Sujets)
Acétates , Pharmacologie , Techniques de culture cellulaire , Cistanche , Métabolisme , Milieux de culture , Cyclopentanes , Pharmacologie , Hétérosides , Oxylipines , Pharmacologie , Alcool phénéthylique , Métabolisme , Acide salicylique , PharmacologieRésumé
The expression of the vgb gene in vivo could improve the fermentation density and then contribute the extracellular secretion of the product of bxn gene. Constructed the recombination plasmid pPIC9K-vgbbxn and transformed into Pichia pastoris GS115. The results of PCR and SDS-PAGE indicate that the vgb gene and bxn gene had integrated into the genome of Pichia pastoris GS115 and expressed in efficient level. Also, the protein activity of their products had been verified respectively. Shake flask fermentation experiments showed that the presence of VHb in yeast Pichia pastoris efficiently enhanced cell growth and secretive expression of bxn gene under hypoxic habitats.