<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.1 20151215//EN" "https://jats.nlm.nih.gov/publishing/1.1/JATS-journalpublishing1.dtd">
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" article-type="editorial" dtd-version="1.1" specific-use="sps-1.7" xml:lang="en">
  <front>
    <journal-meta>
      <journal-id journal-id-type="nlm-ta">Arq Bras Cardiol</journal-id>
      <journal-id journal-id-type="publisher-id">abc</journal-id>
      <journal-title-group>
        <journal-title>Arquivos Brasileiros de Cardiologia</journal-title>
        <abbrev-journal-title abbrev-type="publisher">Arq. Bras. Cardiol.</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="ppub">0066-782X</issn>
      <issn pub-type="epub">1678-4170</issn>
      <publisher>
        <publisher-name>Sociedade Brasileira de Cardiologia - SBC</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v3">dGYX78vMcjdxqV83cQskysr</article-id>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v2">S0066-782X2018000300217</article-id>
      <article-id pub-id-type="doi">10.5935/abc.20180050</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Short Editorial</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>The Interface between Osteoporosis and Atherosclerosis in Postmenopausal Women</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Lopes</surname>
            <given-names>Neuza H. M.</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
          <xref ref-type="corresp" rid="c1"/>
        </contrib>
        <aff id="aff1">
          <institution content-type="orgname">Universidade de S&#227;o Paulo</institution>
          <institution content-type="orgdiv1">Faculdade de Medicina</institution>
          <institution content-type="orgdiv2">Instituto do Cora&#231;&#227;o</institution>
          <addr-line>
            <city>S&#227;o Paulo</city>
            <state>SP</state>
          </addr-line>
          <country country="BR">Brazil</country>
          <institution content-type="original">Unidade de Coron&#225;ria Cr&#244;nica - Instituto do Cora&#231;&#227;o (InCor) - Faculdade de Medicina da Universidade de S&#227;o Paulo, S&#227;o Paulo, SP - Brazil</institution>
          <institution content-type="normalized">Universidade de S&#227;o Paulo</institution>
        </aff>
      </contrib-group>
      <author-notes>
        <corresp id="c1"><bold>Mailing Address: Neuza H. M. Lopes</bold>, Av. Dr. En&#233;as de Carvalho Aguiar, 44 - Unidade de Coron&#225;ria Cr&#244;nica. Postal Code 05403-000, S&#227;o Paulo, SP - Brazil. E-mail: <email>neuzalopes1@gmail.com</email>
				</corresp>
      </author-notes>
      <pub-date pub-type="epub-ppub">
        <month>03</month>
        <year>2018</year>
      </pub-date>
      <volume>110</volume>
      <issue>3</issue>
      <fpage>217</fpage>
      <lpage>218</lpage>
      <permissions>
        <license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/" xml:lang="en">
          <license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited</license-p>
        </license>
      </permissions>
      <kwd-group xml:lang="en">
        <title>Keywords:</title>
        <kwd>Atherosclerosis / physiopathology</kwd>
        <kwd>Osteoporosis / physiopathology</kwd>
        <kwd>Bone Diseases, Metabolic</kwd>
        <kwd>Women</kwd>
        <kwd>Postmenopause</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <p>In recent years, the association between osteoporosis and atherosclerotic disease has been described, regardless of patients' age, and highlighted epidemiologic and pathophysiologic similarities between arterial wall calcification and osteogenesis.<xref ref-type="bibr" rid="B1">1</xref><sup>,</sup><xref ref-type="bibr" rid="B2">2</xref> Cross-sectional, prospective studies have pointed out significant negative association between cardiovascular mortality and low bone mass, osteoporotic fractures, vascular calcification, extension of coronary artery disease and abdominal aortic injury.<xref ref-type="bibr" rid="B3">3</xref><sup>-</sup><xref ref-type="bibr" rid="B5">5</xref> Concomitant occurrence of both diseases seems to result from common pathophysiologic and molecular mechanisms between these conditions. However, it is still controversial whether a low bone mass is caused by arterial calcification or vice-versa, or whether these conditions only have the same pathophysiological mechanism.</p>
    <p>Risk factors for osteoporosis and atherosclerotic disease include estrogen, parathyroid hormone, homocysteine and vitamin K deficiency, lipid oxidation products, inflammatory process, vitamin D excess, molecular pathways involved in both bone and vascular mineralization, and similar mechanisms of calcification involving vascular and bone structures.<xref ref-type="bibr" rid="B6">6</xref> Arterial calcification is found in more than 90% of atherosclerotic lesions. The process starts with formation of vesicles in the endothelial matrix, followed by proliferation and mineralization of the arterial intima-media wall, similarly to the bone tissue. Many bone remodeling regulators have been described in calcified atherosclerotic lesions, including osteocalcin, hydroxyapatite crystals, osteopontin, bone morphogenetic protein 2 osteoprotegerin, sclerostin, dickkopf factor (DKK), leptin, oxidized lipids and calcium sensor-related factor.<xref ref-type="bibr" rid="B7">7</xref>
		</p>
    <p>Vascular atherosclerotic disease is more common in women with osteoporosis and osteopenia as compared with women without these conditions.<xref ref-type="bibr" rid="B5">5</xref><sup>,</sup><xref ref-type="bibr" rid="B6">6</xref> Increased mortality rates related to cardiovascular diseases have been reported at advanced ages in postmenopausal women with low bone mineral density (BMD). Despite a non-significant increase in myocardial infarction among women with low BMD, with a rate of 22%, a significant increase is observed among men with low BMD, with a rate of 39%.<xref ref-type="bibr" rid="B2">2</xref>
		</p>
    <p>In the present issue, the study by Cheng et al.<xref ref-type="bibr" rid="B8">8</xref> adds to existing literature demonstrating an inverse association between BMD and coronary artery disease in postmenopausal women. The authors studied 122 postmenopausal women with diagnosis of coronary artery diseases (acute coronary syndrome or stable angina). All patients had undergone routine bone densitometry within one year prior to the assessment of atherosclerotic load by the Gensini score and invasive angiography. BMD of the femoral neck was measured by dual-energy X-ray absorptiometry. The presence of osteopenia/osteoporosis in femoral neck was associated with increased risk of severe coronary lesions. The multiple regression model revealed the T-scores as independent predictors of higher Gensini scores. This study corroborates previous data indicating an association between BMD and the severity of coronary atherosclerotic disease, suggesting that this parameter may be an independent marker of disease severity. </p>
    <p>Prospective studies including a larger number of patients and serial test data of BMD are needed to establish the role of T-scores as risk predictors for the development of severe coronary artery disease in men and women. Evidence from clinical practice suggests that osteoporosis patients should also be assessed for the risk of severe coronary artery disease.</p>
  </body>
  <back>
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  </back>
  <sub-article article-type="translation" id="s1" xml:lang="pt">
    <front-stub>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Minieditorial</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>A Interface entre Osteoporose e Aterosclerose em Mulheres P&#243;s-Menopausa</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Lopes</surname>
            <given-names>Neuza H. M.</given-names>
          </name>
          <xref ref-type="aff" rid="aff2"/>
          <xref ref-type="corresp" rid="c2"/>
        </contrib>
        <aff id="aff2">
          <institution content-type="original">Unidade de Coron&#225;ria Cr&#244;nica - Instituto do Cora&#231;&#227;o (InCor) - Faculdade de Medicina da Universidade de S&#227;o Paulo, S&#227;o Paulo, SP &#8211; Brasil</institution>
        </aff>
      </contrib-group>
      <author-notes>
        <corresp id="c2"><bold>Correspond&#234;ncia: Neuza H. M. Lopes</bold>, Av. Dr. En&#233;as de Carvalho Aguiar, 44 - Unidade de Coron&#225;ria Cr&#244;nica. CEP 05403-000, S&#227;o Paulo, SP - Brasil. E-mail: <email>neuzalopes1@gmail.com</email>
				</corresp>
      </author-notes>
      <kwd-group xml:lang="pt">
        <title>Palavras-chave:</title>
        <kwd>Aterosclerose / fisiopatologia</kwd>
        <kwd>Osteoporose / fisiopatologia</kwd>
        <kwd>Doen&#231;as &#211;sseas Metab&#243;licas</kwd>
        <kwd>Mulheres, P&#243;s-Menopausa</kwd>
      </kwd-group>
    </front-stub>
    <body>
      <p>A associa&#231;&#227;o entre osteoporose e doen&#231;a cardiovascular ateroscler&#243;tica, independente da idade, tem sido descrita nos &#250;ltimos anos e enfatiza semelhan&#231;as epidemiol&#243;gicas e fisiopatog&#234;nicas entre a calcifica&#231;&#227;o da parede arterial e osteog&#234;nese.<xref ref-type="bibr" rid="B1">1</xref><sup>,</sup><xref ref-type="bibr" rid="B2">2</xref> Estudos transversais e prospectivos t&#234;m ressaltado associa&#231;&#227;o negativa e significativa entre baixos valores das medidas de massa &#243;ssea, fratura por osteoporose, calcifica&#231;&#227;o vascular, extens&#227;o de les&#227;o coronariana e de aorta abdominal e mortalidade cardiovascular.<xref ref-type="bibr" rid="B3">3</xref><sup>-</sup><xref ref-type="bibr" rid="B5">5</xref> Acredita-se que a ocorr&#234;ncia concomitante das duas doen&#231;as seja decorrente dos fatores de risco e mecanismos fisiopatol&#243;gicos e moleculares comuns. No entanto, ainda &#233; controverso se a baixa massa &#243;ssea resulta de maior calcifica&#231;&#227;o arterial ou vice-versa, ou ainda, se compartilham apenas o mesmo mecanismo fisiopatol&#243;gico.</p>
      <p>Os fatores de risco para osteoporose e doen&#231;a ateroscler&#243;tica incluem a falta de estrog&#234;nio, horm&#244;nio da paratireoide, homociste&#237;na e vitamina K, produtos de oxida&#231;&#227;o lip&#237;dica, processo inflamat&#243;rio, excesso de vitaminas D, vias moleculares similares envolvidos na mineraliza&#231;&#227;o &#243;ssea e vascular e mecanismos de calcifica&#231;&#227;o que parecem ser semelhantes na estrutura vascular e no osso.<xref ref-type="bibr" rid="B6">6</xref> A calcifica&#231;&#227;o arterial &#233; um achado presente em mais de 90% das les&#245;es por aterosclerose. O processo inicia-se com a forma&#231;&#227;o de ves&#237;culas na matriz endotelial, seguida por prolifera&#231;&#227;o da camada m&#233;dio-intimal da art&#233;ria e posterior mineraliza&#231;&#227;o, semelhante &#224; ocorrida no tecido &#243;sseo. V&#225;rios reguladores da remodela&#231;&#227;o &#243;ssea, como a osteocalcina, cristais de hidroxiapatita, osteopontina, prote&#237;na morfogen&#233;tica &#243;ssea 2 (BMP-2), osteoprotegerina, esclerostina, prote&#237;na dikkopf (DKK), leptina, lip&#237;dios oxidados e o fator relacionado ao sensor de c&#225;lcio, j&#225; foram descritos em les&#245;es ateroscler&#243;ticas calcificadas.<xref ref-type="bibr" rid="B7">7</xref>
			</p>
      <p>A doen&#231;a vascular ateroscler&#243;tica &#233; mais comum em mulheres com osteoporose e osteopenia quando comparadas com mulheres sem osteoporose e osteopenia.<xref ref-type="bibr" rid="B5">5</xref><sup>,</sup><xref ref-type="bibr" rid="B6">6</xref> Foi relatado aumento nas taxas de mortalidade relacionadas com doen&#231;a cardiovascular em idades avan&#231;adas para mulheres p&#243;s-menopausa com baixo conte&#250;do mineral &#243;sseo. Apesar de um aumento n&#227;o significativo do infarto do mioc&#225;rdio com uma taxa de 22% em mulheres com baixa densidade mineral &#243;ssea (DMO), h&#225; aumento significativo em homens com DMO baixa, com uma taxa de 39%.<xref ref-type="bibr" rid="B2">2</xref>
			</p>
      <p>O artigo de Cheng et al.,<xref ref-type="bibr" rid="B8">8</xref> nesta edi&#231;&#227;o traz mais uma contribui&#231;&#227;o a esse cen&#225;rio. Os autores demonstraram uma associa&#231;&#227;o inversa entre DMO e extens&#227;o de doen&#231;a arterial coronariana em mulheres na p&#243;s-menopausa. Eles estudaram 122 mulheres na p&#243;s-menopausa com diagn&#243;stico de doen&#231;a arterial coronariana (s&#237;ndrome coronariana aguda ou angina est&#225;vel) com densitometria &#243;ssea pr&#233;via de rotina com at&#233; 1 ano antes da avalia&#231;&#227;o da carga ateroscler&#243;tica definida pelo escore de Gensini pela angiografia invasiva. A densidade mineral do colo femoral foi medida por absor&#231;&#227;o de raios-X de dupla energia (DXA). A presen&#231;a de osteopenia/osteoporose no colo do f&#234;mur associou-se com um risco aumentado de apresentar les&#245;es coronarianas graves. O modelo de regress&#227;o m&#250;ltipla mostrou que os escores T foram preditores independentes de maior gravidade de escore de Gensini. Este estudo soma-se a outros trabalhos, indicando uma associa&#231;&#227;o entre a DMO e gravidade de doen&#231;a ateroscler&#243;tica coronariana, sugerindo que a DMO possa ser um marcador independente de gravidade da doen&#231;a.</p>
      <p>Estudos prospectivos com um maior n&#250;mero de pacientes e com exames seriados de DMO se faz necess&#225;rio para estabelecer o real papel preditor de risco dos escores T para desenvolvimento de CAD grave em mulheres e homens. Na pr&#225;tica cl&#237;nica, sugere-se que pacientes com osteoporose deveriam tamb&#233;m ser avaliados para o risco de doen&#231;a arterial coron&#225;ria mais grave.</p>
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