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result sql = Leishmania amazonensis growth inhibitors: biological and theoretical features of sulfonamide 4-methoxychalcone derivatives.
Leishmania amazonensis growth inhibitors: biological and theoretical features of sulfonamide 4-methoxychalcone derivatives.
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char = s;code = 115
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = s;code = 115
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char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
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char = e;code = 101
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char = n;code = 110
char = g;code = 103
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char = ;code = 32
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char = p;code = 112
char = e;code = 101
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char = i;code = 105
char = m;code = 109
char = e;code = 101
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char = s;code = 115
char = i;code = 105
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char = i;code = 105
char = v;code = 118
char = i;code = 105
char = t;code = 116
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char = ;code = 32
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char = .;code = 46
char = e;code = 101
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char = ,;code = 44
char = ;code = 32
char = 3;code = 51
char = i;code = 105
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result sql = Current drugs for treating leishmaniasis are still associated with significant toxicity and failure rates. Thus, new effective and less toxic antileishmanial agents are still in need. Herein, we tested a series of sulfonamide 4-methoxychalcone derivatives against L. amazonensis promastigote and amastigote forms to identify its antileishmanial profile against this species compared to L. braziliensis. In addition, we used molecular modeling tools to determine stereoelectronic features that may lead to the antileishmanial profile. Interestingly, all tested compounds were able to affect L. amazonensis promastigote form in a concentration-dependent manner and with low cytotoxicity, except for derivative 3g. However, our results showed that compound 3f (para-Cl) presents the best profile against both L. amazonensis forms (promastigote and amastigote), differently from that observed for L. braziliensis, when compound 3i was the most active. Structure-activity relationship (SAR) analysis of these derivatives pointed molecular volume, HOMO density, and conformational aspects as important characteristics for parasitic profile. Overall, sulfonamide 4-methoxychalcone derivatives may be pointed out not only as lead compounds for treating leishmaniasis (i.e., 3f) but also as experimental tools presenting parasite-selectivity (i.e., 3i).

Publication: Curr. Microbiol. 2009 Oct ;59(4)::374-9. :doi: 10.1007/s00284-009-9447-2.
Publication Date: 2009 Oct
Study Author(s): Souza, Alessandra M T;Castro, Helena C;Brito, Monique A;Andrighetti-Fröhner, Carla R;Magalhães, Uiaran;Oliveira, Kely N;Gaspar-Silva, Daniela;Pacheco, Letícia K;Joussef, Antônio C;Steindel, Mário;Simões, Cláudia M O;Santos, Dilvani O;Albuquerque, Magaly G;Rodrigues, Carlos R;Nunes, Ricardo J;
Institution: ModMolQSAR, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil.
Shortcut link to this study:
Current drugs for treating leishmaniasis are still associated with significant toxicity and failure rates. Thus, new effective and less toxic antileishmanial agents are still in need. Herein, we tested a series of sulfonamide 4-methoxychalcone derivatives against L. amazonensis promastigote and amastigote forms to identify its antileishmanial profile against this species compared to L. braziliensis. In addition, we used molecular modeling tools to determine stereoelectronic features that may lead to the antileishmanial profile. Interestingly, all tested compounds were able to affect L. amazonensis promastigote form in a concentration-dependent manner and with low cytotoxicity, except for derivative 3g. However, our results showed that compound 3f (para-Cl) presents the best profile against both L. amazonensis forms (promastigote and amastigote), differently from that observed for L. braziliensis, when compound 3i was the most active. Structure-activity relationship (SAR) analysis of these derivatives pointed molecular volume, HOMO density, and conformational aspects as important characteristics for parasitic profile. Overall, sulfonamide 4-methoxychalcone derivatives may be pointed out not only as lead compounds for treating leishmaniasis (i.e., 3f) but also as experimental tools presenting parasite-selectivity (i.e., 3i).
PMID: 19629593

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