Inhibitory effects of Morus nigra L. (Moraceae) against local paw edema and mechanical hypernociception induced by Bothrops jararacussu snake venom in mice

被引：20

作者：

Alencar Santos Ribeiro, Anita Eugenia ^{[1
]}

Dias Soares, Juliana Mikaely ^{[1
]}

Lima Silva, Helder Anderson ^{[2
]}

de Souza Wanderley, Carlos Wagner ^{[3
]}

Moura, Celuane Alves ^{[1
]}

de Oliveira-Junior, Raimundo Gonsalves ^{[1
]}

de Oliveira, Ana Paula ^{[1
]}

Rolim, Larissa Araujo ^{[1
]}

Costa, Emmanoel Vilaca ^{[4
]}

Guedes da Silva Almeida, Jackson Roberto ^{[1
]}

de Oliveira, Helinando Pequeno ^{[1
,5
]}

Palheta-Junior, Raimundo Campos ^{[1
,2
]}

机构：

[1] Univ Fed Vale Sao Francisco, Posgrad Recursos Nat Semiarido, BR-56300990 Petrolina, PE, Brazil

[2] Univ Fed Vale Sao Francisco, Posgrad Ciencias Vet Semiarido, BR-56300990 Petrolina, PE, Brazil

[3] Univ Sao Paulo, Fac Med Ribeirao Preto, Dept Farmacol, BR-14049900 Ribeirao Preto, SP, Brazil

[4] Univ Fed Amazonas, Dept Quim, BR-69067005 Manaus, Amazonas, Brazil

[5] Univ Fed Vale Sao Francisco, Posgrad Ciencia Mat, BR-48902300 Juazeiro, BA, Brazil

来源：

BIOMEDICINE & PHARMACOTHERAPY | 2019年 / 111卷

关键词：

Inflammation; Morus nigra; Bothrops jararacussu; Edema; Electrospun fibers; Pain; DRUG-DELIVERY SYSTEMS; ANTIINFLAMMATORY PROPERTIES; ANTINOCICEPTIVE PROPERTIES; INFLAMMATORY RESPONSE; LOADED CHITOSAN; EXTRACT; RUTIN; RAT; ANTIVENOM; LEAVES;

D O I：

10.1016/j.biopha.2019.01.011

中图分类号：

R-3 [医学研究方法]; R3 [基础医学];

学科分类号：

1001 ;

摘要：

Background: Bothropic venoms cause intense local damage, pain, edema, and myonecrosis. Monts nigra L. (Moraceae) has several uses in folk medicine and can be a promising candidate for the treatment of several inflammatory disorders. Hypothesis/Purpose: The present study aims to evaluate the anti-inflammatory and antinociceptive effects of the ethanolic extract of Monts nigra L. (Mn-EtOH) on paw lesions induced by Bothrops jararacussu snake venom (BjcuV) in mice. Methods: UV-vis absorption of BjcuV was evaluated. A phytochemical study was performed, which led to the isolation and characterization of three compounds. These compounds were identified using spectrometric methods, namely LC-MS and NMR (1D and 2D), followed by the validation of their spectra with the data available in the literature. Further, the flavonoids i.e. rutin and quercetin (chemical markers of M. nigra), Mn-EtOH or Mn-EtOH-encapsulated electrospun fibers of Eudragit L100 (FB/Mn-EtOH), and Mn-EtOH-encapsulated microparticles of Eudragit L100 (MP/Mn-EtOH) were evaluated, in paw edema test induced by BjcuV. Results: UV-vis spectra showed the presence of phospholipases A(2) as component of BjcuV. The chemical examination resulted in the isolation of beta-sitosterol, quercetin 3-O-glucopyranoside, and kaempferol 3-O-gluco-pyranoside. Mn-EtOH, FB/Mn-EtOH, MP/Mn-EtOH, rutin, and quercetin reduced the local edema induced by BjcuV. The Mn-EtOH also prevented edema provoked by serotonin and bradykinin. Moreover, it reduced paw edema and peritoneal leukocyte infiltration induced by carrageenan, and decreased the mechanical hypernociception of BjcuV. Mn-EtOH exerted anti-inflammatory and antinociceptive effects, possibly by the inhibition of leukocyte migration and the modulation of serotonin and bradykinin actions. This anti-inflammatory activity was maintained even upon incorporation of the M. nigra extract into the drug delivery systems (i.e., Mn-EtOH- encapsulated FBs and MPs of Eudragit L100). Conclusion: These results reinforce the therapeutic potential of M. nigra in the treatment of inflammatory conditions, in addition to, its role as a complementary treatment of snakebites.

引用

页码：1046 / 1056

页数：11

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