<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1028-4796</journal-id>
<journal-title><![CDATA[Revista Cubana de Plantas Medicinales]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Plant Med]]></abbrev-journal-title>
<issn>1028-4796</issn>
<publisher>
<publisher-name><![CDATA[ECIMED]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1028-47962014000200004</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Avaliação da atividade antimicrobiana e moduladora do extrato hexânico de Costus cf. Arabicus L.]]></article-title>
<article-title xml:lang="es"><![CDATA[Evaluación de la actividad antimicrobiana y modulación del extracto de hexano de Costus cf. Arabicus L.]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of the antimicrobial and modulating activity of hexane extract from Costus cf. Arabicus L.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sobral de Souza]]></surname>
<given-names><![CDATA[Celestina Elba]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Figueiredo Leite]]></surname>
<given-names><![CDATA[Nadghia]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vieira de Brito]]></surname>
<given-names><![CDATA[Dara Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Batista Alencar]]></surname>
<given-names><![CDATA[Liscássia Beatriz]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lima Santos de Lavor]]></surname>
<given-names><![CDATA[Anne Karyzia]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ferreira Matias]]></surname>
<given-names><![CDATA[Edinardo Fagner]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sabino Albuquerque]]></surname>
<given-names><![CDATA[Rosimeire]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[de Alencar Ferreira]]></surname>
<given-names><![CDATA[João Victor]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bezerra da Cunha]]></surname>
<given-names><![CDATA[Francisco Assis]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Relison Tintino]]></surname>
<given-names><![CDATA[Saulo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martins Costa]]></surname>
<given-names><![CDATA[José Galberto]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Melo Coutinho]]></surname>
<given-names><![CDATA[Henrique Douglas]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Laboratório de Microbiologia e Biologia Molecular , Universidade Regional do Cariri ]]></institution>
<addr-line><![CDATA[ Crato(CE)]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Laboratório de Pesquisas em Produtos Naturais Universidade Regional do Cariri ]]></institution>
<addr-line><![CDATA[ Crato(CE)]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Faculdade Leão Sampaio  ]]></institution>
<addr-line><![CDATA[ Juazeiro do Norte (CE)]]></addr-line>
<country>Brasil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2014</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2014</year>
</pub-date>
<volume>19</volume>
<numero>2</numero>
<fpage>151</fpage>
<lpage>159</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1028-47962014000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1028-47962014000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1028-47962014000200004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Introdução: a Pseudomonas aeruginosaé conhecida por causar infecção aguda pela produção de toxinas. Alguns espécimes deStaphylococcus são frequentemente reconhecidos como agentes etiológicos de infecções oportunistas em muitos animais e homens. Escherichia colié uma das principais causas de doenças infecciosas humanas. O gênero Candida produz diversos fatores de virulência, as infecções são provavelmente iniciadas por modificações de defesas do hospedeiro. Objetivo: avaliar o efeito antimicrobiano do extrato hexânico de Costus cf. e modulação da atividade antibiótica de Costus cf. Arabicus L. Métodos: o material botânico de Costus cf. Arabicus L., foi coletado no município de Crato, Ceará, Brasil. Para a preparação dos extratos foram coletados folhas e caules frescos, submersos em hexano separadamente por 72 h, sendo apósesse período, filtrado e concentrado em condensador rotativo a vácuo. Foram realizados testes de atividade antimicrobiana (CIM) e modulação da atividade antimicrobiana com cepas padrões e multirresistentes de bactérias e fungos. Resultados: o extrato demonstrou atividade antibacteriana e antifúngica quando combinados com alguns antimicrobianos contra algumas linhagens testadas. Conclusões: portanto, é sugerido que o extrato de Costus cf. pode ser utilizado como uma fonte de productos naturais na terapêutica antimicrobiana e no combate a multirresistência bacteriana e fúngica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Introducción: Pseudomonas aeruginosa se &#8203;&#8203;sabe que causa la infección aguda por la producción de toxinas. Algunos ejemplares de Staphylococcus suelen ser reconocidos como agentes etiológicos de las infecciones oportunistas en muchos animales y seres humanos. Escherichia coli es una de las principales causas de las enfermedades infecciosas humanas. El género Candida produce varios factores de virulencia, las infecciones son probablemente iniciadas por los cambios en las defensas del huésped. Objetivo: evaluar el efecto antimicrobiano del extracto de hexano de Costus cf. y la modulación de la actividad antibiótica de Costus cf. Arabicus L. Métodos: el material botánico de Costus cf. arabicus L. se recogió en Crato, Ceará, Brasil. Para la preparación de extractos se recogieron las hojas y los tallos frescos por separado y se sumergieron en hexano durante 72 horas, después de eso, se filtró y se concentró en un condensador de vacío rotatorio. Se realizaron ensayos de actividad antimicrobiana (MIC), modulación con cepas multirresistentes y patrones de bacterias y hongos. Resultados: el extracto mostró actividad antibacteriana y antifúngica cuando se combinan con algunos antibióticos contra algunas cepas ensayadas. Conclusiones: por lo tanto, el extracto de Costus cf. se puede utilizar como una fuente de productos naturales en la terapia antimicrobiana y en la lucha contra la resistencia a múltiples fármacos de bacterias y hongos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Introduction: Pseudomonas aeruginosa is known to cause acute infection due to the production of toxins. Some specimens of Staphylococcus are often recognized as the etiologic agents of opportunistic infections in many animals and humans. Escherichia coli is a leading cause of human infectious diseases. The genus Candida produces several virulence factors. Infections are probably initiated by changes in host defenses. Objective: evaluate the antimicrobial effect of hexane extract of Costus cf. and themodulation of Costus cf. Arabicus. L. antibiotic activity. Methods: botanical material from Costus cf. arabicus L. was collected at Crato, Ceará, Brazil. For the preparation of extracts fresh leaves and stems were collected, separately immersed in hexane for 72 hours, and thereafter filtered and concentrated in a rotary vacuum condenser. Tests of antimicrobial activity (MIC) and antimicrobial activity modulation were conducted with multiresistant strain patterns of bacteria and fungi. Results: the extract showed antibacterial and antifungal activity against some of the strains tested when combined with some antibiotics. Conclusions: therefore, it is suggested that the extract of Costus cf. be used as a source of natural products for antimicrobial therapy and to combat bacterial and fungal multidrug resistance.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Costus cf. arabicus L]]></kwd>
<kwd lng="pt"><![CDATA[atividade antimicrobiana]]></kwd>
<kwd lng="pt"><![CDATA[modificação de resistência]]></kwd>
<kwd lng="es"><![CDATA[Costus cf. Arabicus L]]></kwd>
<kwd lng="es"><![CDATA[actividad antimicrobiana]]></kwd>
<kwd lng="es"><![CDATA[la modificación de la resistencia]]></kwd>
<kwd lng="en"><![CDATA[Costus cf. Arabicus L]]></kwd>
<kwd lng="en"><![CDATA[antimicrobial activity]]></kwd>
<kwd lng="en"><![CDATA[modification of resistance]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"> <font size="2" face="Verdana"><b>ART&Iacute;CULO ORIGINAL</b></font></p>     <p>&nbsp; </p>     <p><font size="2" face="Verdana"><b><font size="4">Avalia&#231;&#227;o da atividade    antimicrobiana e moduladora do extrato hex&#226;nico de <i>Costus cf. Arabicus    </i>L. </font></b></font></p>     <p>&nbsp;</p>     <p> <font size="2" face="Verdana"><font size="3"><b>Evaluaci&#243;n de la actividad    antimicrobiana y modulaci&#243;n del extracto de hexano de<i> Costus</i> cf.    <i>Arabicus</i> L.</b></font> </font></p>     <p>&nbsp;</p>     <p> <b><font size="3" face="Verdana">Evaluation of the antimicrobial and modulating    activity of hexane extract from <i>Costus</i> cf. <i>Arabicus </i>L. </font></b></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p> <font size="2" face="Verdana"><b> PhD. Celestina Elba Sobral de Souza,<sup>I    </sup>MSc. Nadghia Figueiredo Leite,<sup>I </sup>MSc. Dara Isabel Vieira de    Brito,<sup>I </sup>MSc. Lisc&#225;ssia Beatriz Batista Alencar,<sup>I</sup>    BSc. Anne Karyzia Lima Santos de Lavor,<sup>I </sup>MSc. Edinardo Fagner Ferreira    Matias,<sup>I,III</sup> </b> <b> PhD. Rosimeire Sabino Albuquerque,<sup>I </sup>BSc.    Jo&#227;o Victor de Alencar Ferreira,<sup>I </sup></b> <b> BSc. Francisco Assis    Bezerra da Cunha,<sup>I </sup>PhD. Saulo Relison Tintino,<sup>I BSc. </sup>Jos&#233;    Galberto Martins Costa,<sup>II,III </sup>PhD. Henrique Douglas Melo Coutinho,<sup>I</sup>    </b> </font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana"><sup>I </sup> Laborat&#243;rio de Microbiologia    e Biologia Molecular, Universidade Regional do Cariri, Crato (CE), Brasil.    <br>   </font><font size="2" face="Verdana"><sup>II </sup> Laborat&#243;rio de Pesquisas    em Produtos Naturais, Universidade Regional do Cariri, Crato(CE), Brasil.    <br>   </font><font size="2" face="Verdana"><sup>III </sup> Faculdade Le&#227;o Sampaio,    Juazeiro do Norte (CE), Brasil. </font></p>     <p>&nbsp;</p>     <p>&nbsp;</p> <hr size="1" noshade>     <p><font size="2" face="Verdana"><b>RESUMO</b> </font></p>     <p> <font size="2" face="Verdana"><b>Introdu&#231;&#227;o: </b> a <i>Pseudomonas    aeruginosa</i>&#233; conhecida por causar infec&#231;&#227;o aguda pela produ&#231;&#227;o    de toxinas. Alguns esp&#233;cimes de<i>Staphylococcus </i>s&#227;o frequentemente    reconhecidos como agentes etiol&#243;gicos de infec&#231;&#245;es oportunistas    em muitos animais e homens. <i>Escherichia coli</i>&#233; uma das principais    causas de doen&#231;as infecciosas humanas. O g&#234;nero<i> Candida </i>produz    diversos fatores de virul&#234;ncia, as infec&#231;&#245;es s&#227;o provavelmente    iniciadas por modifica&#231;&#245;es de defesas do hospedeiro.    <br>   </font><font size="2" face="Verdana"><b>Objetivo: </b> avaliar o efeito antimicrobiano    do extrato hex&#226;nico de <i>Costus cf.</i> e modula&#231;&#227;o da atividade    antibi&#243;tica de <i>Costus cf. Arabicus</i> L.    <br>   </font><font size="2" face="Verdana"><b>M&#233;todos: </b> o material bot&#226;nico    de <i>Costus cf. Arabicus</i> L., foi coletado no munic&#237;pio de Crato, Cear&#225;,    Brasil. Para a prepara&#231;&#227;o dos extratos foram coletados folhas e caules    frescos, submersos em hexano separadamente por 72 h, sendo ap&#243;sesse per&#237;odo,    filtrado e concentrado em condensador rotativo a v&#225;cuo. Foram realizados    testes de atividade antimicrobiana (CIM) e modula&#231;&#227;o da atividade    antimicrobiana com cepas padr&#245;es e multirresistentes de bact&#233;rias    e fungos.    <br>   </font><font size="2" face="Verdana"><b>Resultados:</b> o extrato demonstrou    atividade antibacteriana e antif&#250;ngica quando combinados com alguns antimicrobianos    contra algumas linhagens testadas.    ]]></body>
<body><![CDATA[<br>   </font><font size="2" face="Verdana"><b>Conclus&#245;es: </b> portanto, &#233;    sugerido que o extrato de <i>Costus cf. </i>pode ser utilizado como uma fonte    de productos naturais na terap&#234;utica antimicrobiana e no combate a multirresist&#234;ncia    bacteriana e f&#250;ngica. </font></p>     <p> <font size="2" face="Verdana"><b>Palavras-chaves: </b> <i>Costus cf. arabicus</i>    L., atividade antimicrobiana, modifica&#231;&#227;o de resist&#234;ncia<i>.</i>    </font></p> <hr size="1" noshade>     <p><font size="2" face="Verdana"><b>RESUMEN</b> </font></p>     <p> <font size="2" face="Verdana"><b>Introducci&#243;n: </b> <i>Pseudomonas aeruginosa</i>    se &#8203;&#8203;sabe que causa la infecci&#243;n aguda por la producci&#243;n    de toxinas. Algunos ejemplares de <i>Staphylococcus</i> suelen ser reconocidos    como agentes etiol&#243;gicos de las infecciones oportunistas en muchos animales    y seres humanos. <i>Escherichia coli</i> es una de las principales causas de    las enfermedades infecciosas humanas. El g&#233;nero <i>Candida</i> produce    varios factores de virulencia, las infecciones son probablemente iniciadas por    los cambios en las defensas del hu&#233;sped.    <br>   </font><font size="2" face="Verdana"><b>Objetivo:</b> evaluar el efecto antimicrobiano    del extracto de hexano de <i>Costus cf.</i> y la modulaci&#243;n de la actividad    antibi&#243;tica de <i>Costus cf. Arabicus</i> L.    <br>   </font><font size="2" face="Verdana"><b>M&#233;todos:</b> el material bot&#225;nico    de <i>Costus cf. arabicus</i> L. se recogi&#243; en Crato, Cear&#225;, Brasil.    Para la preparaci&#243;n de extractos se recogieron las hojas y los tallos frescos    por separado y se sumergieron en hexano durante 72 horas, despu&#233;s de eso,    se filtr&#243; y se concentr&#243; en un condensador de vac&#237;o rotatorio.    Se realizaron ensayos de actividad antimicrobiana (MIC), modulaci&#243;n con    cepas multirresistentes y patrones de bacterias y hongos.    <br>   </font><font size="2" face="Verdana"><b>Resultados:</b> el extracto mostr&#243;    actividad antibacteriana y antif&#250;ngica cuando se combinan con algunos antibi&#243;ticos    contra algunas cepas ensayadas.    <br>   </font><font size="2" face="Verdana"><b>Conclusiones:</b> por lo tanto, el extracto    de <i>Costus cf</i>. se puede utilizar como una fuente de productos naturales    en la terapia antimicrobiana y en la lucha contra la resistencia a m&#250;ltiples    f&#225;rmacos de bacterias y hongos. </font></p>     <p> <font size="2" face="Verdana"><b>Palabras clave</b> : <i>Costus cf. Arabicus</i>    L., actividad antimicrobiana, la modificaci&#243;n de la resistencia. </font></p> <hr size="1" noshade>     <p><font size="2" face="Verdana"><b>ABSTRACT</b> </font></p>     ]]></body>
<body><![CDATA[<p> <font size="2" face="Verdana"><b>Introduction:</b> <i>Pseudomonas aeruginosa</i>    is known to cause acute infection due to the production of toxins. Some specimens    of <i>Staphylococcus</i> are often recognized as the etiologic agents of opportunistic    infections in many animals and humans. <i>Escherichia coli </i>is a leading    cause of human infectious diseases. The genus <i>Candida</i> produces several    virulence factors. Infections are probably initiated by changes in host defenses.    <br>   <b>Objective:</b> evaluate the antimicrobial    effect of hexane extract of <i>Costus cf</i>. and themodulation of <i>Costus    cf. Arabicus</i>. L. antibiotic activity.    <br>   <b>Methods:</b> botanical material from    <i>Costus cf. arabicus</i> L. was collected at Crato, Cear&#225;, Brazil. For    the preparation of extracts fresh leaves and stems were collected, separately    immersed in hexane for 72 hours, and thereafter filtered and concentrated in    a rotary vacuum condenser. Tests of antimicrobial activity (MIC) and antimicrobial    activity modulation were conducted with multiresistant strain patterns of bacteria    and fungi.    <br>   <b>Results:</b> the extract showed antibacterial    and antifungal activity against some of the strains tested when combined with    some antibiotics.    <br>   </font><font size="2" face="Verdana"><b>Conclusions:</b> therefore, it is suggested    that the extract of <i>Costus cf</i>. be used as a source of natural products    for antimicrobial therapy and to combat bacterial and fungal multidrug resistance.    </font></p>     <p> <font size="2" face="Verdana"><b>Key words: </b> <i>Costus cf. Arabicus</i>    L., antimicrobial activity, modification of resistance. </font></p> <hr size="1" noshade>     <p>&nbsp;</p>    <p>&nbsp;</p>     <p> <font size="2" face="Verdana"><b><font size="3">INTRODU&#199;&#195;O </font></b>    </font></p>     <p><font size="2" face="Verdana"> O espectro de doen&#231;as causadas por <i>Pseudomonas    </i>compreende desde infec&#231;&#245;es superficiais da pele at&#233; septicemia    fulminante. <sup>1</sup> A <i>P. aeruginosa</i> pode causar infec&#231;&#227;o    aguda pela produ&#231;&#227;o de toxinas, e infec&#231;&#227;o cr&#244;nica    pela a&#231;&#227;o da camada espessa que consiste no seubiofilme, ou ainda    em uma patologia que &#233; resultado do somat&#243;rio destes fatores de virul&#234;ncia.<sup>2    </sup> </font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana"> Bact&#233;rias do g&#234;nero<i> Staphylococcus</i>    s&#227;o distribu&#237;das na natureza, assim como namicrobiota normal da pele    e da mucosa dos animais e p&#225;ssaros. Alguns esp&#233;cimes de <i>Staphylococcus    </i>s&#227;o frequentemente reconhecidos como agentes etiol&#243;gicos de infec&#231;&#245;es    oportunistas em muito sanimais e homens.<sup>3,4</sup> </font></p>     <p> <font size="2" face="Verdana"><i>S.aureus, S.epidermidis, S.saprophyticus    e S.haemolyticus</i> s&#227;o as esp&#233;cies mais importantes causadoras de    infec&#231;&#245;es humanas e hospitalares. Al&#233;m de causar diferentes intoxica&#231;&#245;es,    <i>S. aureus</i> representa o agente etiol&#243;gico mais comum de infec&#231;&#245;es    purulentas (como, fur&#250;nculo, carb&#250;nculo, abcesso, miocardite, endocardite,    pneumonia, meningite, artrite bacteriana).<sup>5 </sup> </font></p>     <p> <font size="2" face="Verdana"><i>Escherichia coli</i> &#233; uma das principais    causas de doen&#231;as infecciosas humanas. S&#227;o conhecidos por producir    enterotoxinas cujas propriedades e seu papel na doen&#231;a diarr&#233;ica tem    sido amplamente investigado. A atividade das citotoxinas e seu papel nainfec&#231;&#227;o    humana j&#225;foi identificado, <sup>6-8</sup> principalmente em infec&#231;&#245;es    do trato urin&#225;rio.<sup>9</sup> </font></p>     <p><font size="2" face="Verdana"> O g&#234;nero <i>Candida </i>produz diversos    fatores de virul&#234;ncia, as infec&#231;&#245;es s&#227;o provavelmente iniciadas    por modifica&#231;&#245;es de defesas do hospedeiro. As infec&#231;&#245;es    de pele e mucosas s&#227;o principalmente devidas a mudan&#231;as na hidrata&#231;&#227;o,    no pH, altera&#231;&#245;es da microbiota da pele e mucosas. O espectro das    candid&#237;ases &#233; bastante extenso, indo desde manifesta&#231;&#245;es    banais, como a coloniza&#231;&#227;o de mucosas, at&#233; quadros sist&#234;micos,    com a invas&#227;o de varios &#243;rg&#227;os. As mucosas mais envolvidas, em    quadros de candid&#237;ase, s&#227;o as da boca, vagina e es&#244;fago. As esp&#233;cies    mais comumente implicadas em quadros cl&#237;nicos s&#227;o as seguintes: <i>C.    albicans, C. tropicalis, C. parapsilosis, C. glabrata</i>e<i> C. krusei.</i><sup>10</sup>    </font></p>     <p><font size="2" face="Verdana"> Com rela&#231;&#227;o &#224; bacterias patog&#234;nicas,    um problema crescente e preocupante &#233; o aumento da resist&#234;ncia bacteriana    a os antibi&#243;ticos.<sup>11</sup> Para pacientes, a resist&#234;ncia antimicrobiana    aumenta a morbidade e mortalidade, enquanto que para as institui&#231;&#245;es    de sa&#250;de significa aumento de custos.<sup>12, 13</sup> </font></p>     <p><font size="2" face="Verdana"> O uso de extratos como agentes antimicrobianos,    a presenta um baixo risco de aumento da resist&#234;ncia microbiana a sua a&#231;&#227;o,    porque s&#227;o misturas complexas, fazendo com que haja maiores dificuldades    para adaptabilidade microbiana.<sup>14</sup> </font></p>     <p><font size="2" face="Verdana"> A familia Costaceae, antiga Zingiberacea, &#233;    constitu&#237;da por quatro g&#234;neros: <i>Costus</i>, <i>Dimerocostus</i>,    <i>Monocostus</i> e <i>Tapeinocheilas</i>, os quais s&#227;o encontrados em    &#225;reas tropicais e subtropicais atrav&#233;s do Novo e do Velho Mundo, em    florestas pluviais e outros ambientes higr&#243;filos.<sup>15</sup> </font></p>     <p> <font size="2" face="Verdana"><i>Costus</i> &#233; o g&#234;nero commaior    n&#250;mero de esp&#233;cies, possuindo cerca de 175 esp&#233;cies. Com distribui&#231;&#227;o    pantropical, sendo que a maioria de suas esp&#233;cie socorren a Regi&#227;o    Neotropical.<sup>15-17 </sup>Registram o uso das ra&#237;zes e rizomas como    diur&#233;tico, t&#244;nico, emenagogo e diafor&#233;tico, enquanto o suco da    haste fresco dilu&#237;do em agua tem uso contra gonorr&#233;ia, s&#237;filis,    nefrite, picadas de insetos, problemas da bexiga e diabetes.<sup>18-23</sup>    Externamente, sua decoc&#231;&#227;o &#233; empregada para aliviar irrita&#231;&#245;es    vaginais, leucorr&#233;ia e no tratamento de &#250;lceras,<sup>24 </sup>enquanto    que na forma de cataplasma &#233; empregada para amadurecer tumores. <sup>23</sup><i>Costus    cf. arabicus</i> L, &#233; tamb&#233;m conhecida como cana-do-brejo. </font></p>     <p><font size="2" face="Verdana"> Este estudo foi realizado como objetivo de avaliar    o efeito antimicrobiano do extrato hex&#226;nico e modula&#231;&#227;o da atividade    antibi&#243;tica de <i>Costus cf. Arabicus</i> L. </font></p>     <p>&nbsp; </p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana"><b><font size="3">M&#201;TODOS</font></b> </font></p>     <p> <font size="2" face="Verdana"><b>    <br>   Material f&#250;ngico e bacteriano</b> </font></p>     <p><font size="2" face="Verdana"> As cepas de fungos utilizados foram <i>Candida    albicans</i>(ATCC 40006), <i>Candida tropicalis</i>(ATCC 40042) e <i>Candida    krusei</i>(ATCC 2538), as cepas bacterianas padr&#245;es usadas foram <i>S.aureus</i>(ATCC    25923), <i>E.coli</i>(ATCC 10536), <i>P.aeruginosa</i> (ATCC 15442) e <i>K.    pneumonea</i>(ATCC 4362) e muliressistentes de <i>S.aureus</i>(SA 358), <i>E.coli</i>(EC    27), <i>P.aeruginosa</i> (P 03). Todas as cepas foram mantida sem <i>slants    </i>com <i> Heart Infusion Agar </i>(HIA, Difco Laboratories Ltda.). Antes do    ensaio, as c&#233;lulas foram cultivadas por 18h a 37&#176;C em caldo infus&#227;o    de c&#233;rebro e cora&#231;&#227;o (BHI, Difco Laboratories Ltda.) </font></p>     <p> <font size="2" face="Verdana"><b>    <br>   Material vegetal</b> </font></p>     <p><font size="2" face="Verdana"> O material bot&#226;nico de <i>Costus cf. Arabicus    </i>L., foi coletado no munic&#237;pio de Crato, Cear&#225;, Brasil. O material    vegetal identificado &#233; da familia Costaceae e foi depositada uma exsicata    com n&#186; 1267 no herb&#225;rio D&#225;rdano Andrade Lima- URCA da Universidade    Regional do Cariri- URCA. </font></p>     <p> <font size="2" face="Verdana"><b>    <br>   Prepara&#231;&#227;o de extratos hex&#226;nicos das folhas e ra&#237;zes de    <i>Costus</i> cf. <i>Arabicus L</i></b> </font></p>     <p><font size="2" face="Verdana"> Para prepara&#231;&#227;o dos extratos foram    coletados folhas e caules frescos que permaneceram submersos em hexano separadamente    por 72 h, sendo ap&#243;sesse per&#237;odo, filtrado e concentrado em condensador    rotativo a v&#225;cuo (model Q-344B- Quimis, Brazil) e ultrathermal banho (model    Q214M2- QuimisBrazil), obtendo-se rendimentos dos extratos brutos apresentado    na <a href="img/revistas/pla/v19n2/t0104214.gif">tabela 1</a>. A solu&#231;&#227;o utilizada nos testes    foi preparada sobuma concentra&#231;&#227;o de 10 mg/mL, dissolvido sem DMSO(dimetilsulf&#243;xido),    em seguida dilu&#237;da com &#225;gua destilada para uma concentra&#231;&#227;o    de 1024 &#181;g/mL. </font></p>     ]]></body>
<body><![CDATA[<p>    <br>   <font size="2" face="Verdana"><b>Drogas </b> </font></p>     <p><font size="2" face="Verdana"> Os antimicrobianos utilizados foram Gentamicina,    Amicacina, Neomicina, Nistatina, Anfotericina b, Mebendazol, Benzoilmetronidazol    e 8 MOP, todos obtidos pela Sigma Chemical Co.(St. Louis, EUA). </font></p>     <p> <font size="2" face="Verdana"><b>Teste de atividade antimicrobiana (CIM) e    modula&#231;&#227;o da atividade antimicrobiana</b> </font></p>     <p><font size="2" face="Verdana"> A CIM (concentra&#231;&#227;o inibit&#243;ria    m&#237;nima) foi determinada em um ensaio de microdilui&#231;&#227;o<sup> 25</sup>utilizando-se    um in&#243;culo de 100&#181;L de cada linhagem, suspensas em caldo Brain Hear    Infusion - BHI at&#233; uma concentra&#231;&#227;o final de 10<sup>5 </sup>UFC/mLem    placas de microtitula&#231;&#227;o com 96 po&#231;os. Em cada po&#231;ofoi adicionado    100&#181;L de solu&#231;&#227;o de cada extrato. As concentra&#231;&#245;es    finais dos extratos variaram de 512 a 8 &#956;g/mL (dilui&#231;&#245;es seriais    1:2). As CIMsforam registradas como as menores concentra&#231;&#245;es para    a inibi&#231;&#227;o do crescimento. A concentra&#231;&#227;o inibit&#243;ria    m&#237;nima dos antimicrobianos foi determinada em BHI pelostestes de microdilui&#231;&#227;o,    utilizando suspens&#227;o de 10<sup>5</sup>UFC/mLeuma faixa de concentra&#231;&#227;o    da drogade2500 para2 &#181;g/mL(dupla dilui&#231;&#227;o seriada) para os antibacterianos    e uma varia&#231;&#227;o dos antif&#250;ngicos entre 1024-0,5 &#956;g/mL.<sup>25</sup>A    CIM foi definida comoa menor concentra&#231;&#227;o que n&#227;o houve crescimento.    Paraa avalia&#231;&#227;o dos extratos como moduladores da resist&#234;ncia    aos antimicrobianos, o MIC dos antimicrobianos foi determinada na presen&#231;aou    aus&#234;nciade EHCC e EHFC em concentra&#231;&#245;es sub-inibit&#243;rias    (8mg / mL)e as placas foram incubadas por 24 h a 37 &#176;C. </font></p>     <p>&nbsp; </p>     <p> <font size="2" face="Verdana"><b><font size="3">RESULTADOS </font></b> </font></p>     <p><font size="2" face="Verdana"> As <a href="img/revistas/pla/v19n2/t0204214.gif">tabelas 2</a> e <a href="img/revistas/pla/v19n2/t0304214.gif">3</a>    mostram a CIM dos extratos e o efeito potencializador em combina&#231;&#227;o    com antimicrobianos. Os extratos hex&#226;nicos do caule e da folha obtiveram    o mesmo resultado de &#8805;1024&#181;g/mL para as atividades antibacterianas    e antif&#250;ngicas. Na atividade moduladora com as bact&#233;rias, observaram-se    resultados significativos com todos os antibi&#243;ticos. Com a <i>Staphylococcus    aureus </i>foi verificado uma modula&#231;&#227;o sin&#233;rgica para os dois    tipos de extratos usados. Na modula&#231;&#227;o com a <i>Escherichia coli </i>obteve-se    um bom resultado apenas para a amicacina com o extrato hex&#226;nico do caule.    J&#225; para a <i>Pseudomonas aeruginosa </i>n&#227;o foi obtido nenhum resultado    relevante. Na atividade moduladora com os antif&#250;ngicos, foi observado sinergismo    na <i>Candida albicans </i>com a nistatina, para o extrato hex&#226;nico do    caule de <i>Costus cf</i>. Foi observada uma potencializa&#231;&#227;o dos extratos    hex&#226;nicos do caule e da folha com o antif&#250;ngico nistatina para <i>Candida    krusei. </i>Para a <i>Candida tropicalis </i>n&#227;o foi obtido nenhuma atividade    moduladora. </font></p>     <p align="left">&nbsp; </p>     <p> <font size="2" face="Verdana"><b><font size="3">DISCUSS&#195;O</font></b>    </font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana"> Nos &#250;ltimos anos tem habido um grande interesse    cient&#237;fico em investiga&#231;&#245;es qu&#237;micas e farmacol&#243;gicas    sobre as propriedades biol&#243;gicas de plantas medicinais.<sup>26-31</sup>    O uso de extratos como agentes antimicrobianos, apresenta um baixo risco de    aumento da resist&#234;ncia microbiana a sua a&#231;&#227;o, porque s&#227;o    misturas complexas, fazendo com que haja maiores dificuldades para adaptabilidade    microbiana e consequentemente, menor probabilidade de gera&#231;&#227;o de linhagens    resistentes.<sup>14</sup> Al&#233;m da atividade antibacteriana direta, os productos    naturais t&#234;m sido estudados tamb&#233;m como agentes moduladores da atividade    antibi&#243;tica, aumentando a atividade de antibi&#243;ticos contra bact&#233;rias    resistentes a estas drogas.<sup>31</sup> </font></p>     <p><font size="2" face="Verdana"> V&#225;rios componentes de extratos podem aumentar    a permeabilidade da membrana c&#233;lula, aumentando a penetra&#231;&#227;o    de antibi&#243;ticos, principalmente compostos apolares como taninos, flavon&#243;ides    e terpenos, todos com diversos relatos de atividade biol&#243;gica.<sup>32</sup>    </font></p>     <p><font size="2" face="Verdana"> Al&#233;m de aumentar a permeabilidade celular    aos antibi&#243;ticos, os productos naturais podemainda interferir nos sistemas    enzim&#225;ticos das bact&#233;rias que est&#227;o integrados a membrana celular,    sejam eles os mecanismos de produ&#231;&#227;o de energia (fosforila&#231;&#227;o    oxidativa) ou sistemas de efluxo.<sup>32,33 </sup>Estes efeitos podem ser obtidos    pela combina&#231;&#227;o de antibi&#243;ticos com extrato &#224; concentra&#231;&#227;o    sub-inibit&#243;ria aplicada diretamentea omeio de cultura.<sup>34</sup> </font></p>     <p><font size="2" face="Verdana"> Portanto, &#233; sugerido que o extrato de <i>Costus    cf. </i>pode ser utilizado como uma fonte de productos naturais na terap&#234;utica    antimicrobiana no combate a multirresist&#234;ncia bacteriana e f&#250;ngica.    </font></p>     <p>&nbsp;</p>     <p> <font size="2" face="Verdana"><b><font size="3">REFER&#202;NCIAS </font></b>    </font></p>     <!-- ref --><p><font size="2" face="Verdana"> 1. Murray PR. Laboratory Procedures for Epidemiologic    Analysis. In: Manual of Clinical Microbiology. 6. ed., Washington: ASM Press;    1995.     </font></p>     <!-- ref --><p><font size="2" face="Verdana"> 2. Palleroni NJ. Pseudomonas, classification:    a new case history in the taxonomy of gram-negative bacteria. Antonie van Leeuwenhoek,    1993; 64(3-4):231-51.     </font></p>     ]]></body>
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<body><![CDATA[<!-- ref --><p><font size="2" face="Verdana"> 34. Coutinho HDM, Costa JGM, Siqueira Jr JP,    Lima EO. In vitro anti-staphylococcal activity of Hyptis martiusii Benth against    methicillin-resistant <i>Staphylococcus aureus</i>-MRSA strains. Revista Brasileira    de Farmacognosia. 2008;18(suppl.):670-5.     </font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana"> Recibido: 20 de abril de 2013.    <br>   Aprobado: 2 de diciembre de 2013.</font></p>     <p>&nbsp;</p>     <p>&nbsp; </p>     <p><font size="2" face="Verdana"><i>PhD. Henrique D.M. Coutinho.</i> </font><font size="2" face="Verdana">Departamento    de Qu&#237;mica Biol&#243;gica,Universidade Regional do Cariri- URCA, Crato(CE),    Brasil. Rua Cel. Antonio Luis 1161, Pimenta, 63105000.Fone:+55(88)31021212;    Fax:+55(88)31021291. </font><font size="2" face="Verdana">Correo electr&#243;nico:    <a href="mailto:hdmcoutinho@gmail.com">hdmcoutinho@gmail.com</a> </font></p>      ]]></body><back>
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