Polyamidoamines As Protein Carriers, Antiviral And Antimalarial Agents | 17076
Journal of Biotechnology & Biomaterials
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Poly(amidoamine)s (PAAs) are biodegradable polymers that can be purposely designed to exhibit minimal toxicity,
display pH-dependent membrane activity and deliver genes and toxins. In addition, a guanidine-substituted PAA proved
active against Herpes Simplex Viruses HSV-1 and HSV-2 and several other viruses. Structural modifications of the same
polymerimparted activity also against plant viruses. Moreover, some PAAs selectively targeted plasmodium-infected red blood
cells, neglecting healthy cells,and gave conjugates with classical antimalarial drugs such as chloroquine. The chloroquine
conjugates exhibited a remarkably superior activity
compared with the free drugs. In a 4-day suppressive test,
infected mice were almost freed of parasites at day 4 after intraperitoneal administration of 4?0.8 mg/kg doses of chloroquine
conjugated to PAAs, whereas the same dose of free cloroquine only reduced parasitemia by 16%. At a higher dose(1.9 mg kg
) parasite removal at day 4 was complete with the conjugate, but only 50% with the free drug. All conjugate treated mice
survived and monitored until day 30appeared in good conditions,whereas all the free-drug-treated mice died.
Paolo Ferruti took his degrees at the historical College ?Collegio Borromeo? of the University of Pavia, and then worked with Giulio Natta at the Polytechnic of Milan
and with Melvin Calvin at the Lawrence Radiation Laboratory of the University of California in Berkeley. In 1976, he became Full Professor at the University of
Naples and then commuted to Bologna, Brescia and Milan. He authored more than 400 papers and patents on synthesis and
applications offunctional polymers.
His main scientific achievement was the discovery of polyamidoamines
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