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<journal-meta>
<journal-id journal-id-type="publisher-id">Front. Pharmacol.</journal-id>
<journal-title>Frontiers in Pharmacology</journal-title>
<abbrev-journal-title abbrev-type="pubmed">Front. Pharmacol.</abbrev-journal-title>
<issn pub-type="epub">1663-9812</issn>
<publisher>
<publisher-name>Frontiers Media S.A.</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="publisher-id">739503</article-id>
<article-id pub-id-type="doi">10.3389/fphar.2021.739503</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Pharmacology</subject>
<subj-group>
<subject>Correction</subject>
</subj-group>
</subj-group>
</article-categories>
<title-group>
<article-title>Corrigendum: Exploring the Mechanism of Total Flavonoids of Drynariae Rhizoma to Improve Large&#x20;Bone Defects by Network Pharmacology and Experimental Assessment</article-title>
<alt-title alt-title-type="left-running-head">Sun et&#x20;al.</alt-title>
<alt-title alt-title-type="right-running-head">Corrigendum: Large Bone Defects Network Pharmacology</alt-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname>Sun</surname>
<given-names>Weipeng</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="fn" rid="fn1">
<sup>&#x2020;</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Li</surname>
<given-names>Minying</given-names>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
<xref ref-type="fn" rid="fn1">
<sup>&#x2020;</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Xie</surname>
<given-names>Lei</given-names>
</name>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
<xref ref-type="fn" rid="fn1">
<sup>&#x2020;</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Mai</surname>
<given-names>Zhexing</given-names>
</name>
<xref ref-type="aff" rid="aff6">
<sup>6</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Zhang</surname>
<given-names>Yan</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Luo</surname>
<given-names>Lieliang</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Yan</surname>
<given-names>Zijian</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Li</surname>
<given-names>Zige</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Dong</surname>
<given-names>Hang</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Huang</surname>
<given-names>Feng</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Shen</surname>
<given-names>Zhen</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
<xref ref-type="corresp" rid="c001">&#x2a;</xref>
<uri xlink:href="https://loop.frontiersin.org/people/1158534/overview"/>
</contrib>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Jiang</surname>
<given-names>Ziwei</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
<xref ref-type="corresp" rid="c001">&#x2a;</xref>
<uri xlink:href="https://loop.frontiersin.org/people/1081091/overview"/>
</contrib>
</contrib-group>
<aff id="aff1">
<label>
<sup>1</sup>
</label>The First School of Clinical Medicine, Guangzhou University of Chinese Medicine, <addr-line>Guangzhou</addr-line>, <addr-line>Guangdong Province</addr-line>, <country>China</country>
</aff>
<aff id="aff2">
<label>
<sup>2</sup>
</label>Department of Orthopaedics, Kunming Municipal Hospital of Traditional Chinese Medicine, <addr-line>Kunming</addr-line>, <addr-line>Yunnan Province</addr-line>, <country>China</country>
</aff>
<aff id="aff3">
<label>
<sup>3</sup>
</label>Department of Orthopaedics, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, <addr-line>Guangzhou</addr-line>, <addr-line>Guangdong Province</addr-line>, <country>China</country>
</aff>
<aff id="aff4">
<label>
<sup>4</sup>
</label>Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, <addr-line>Guangzhou</addr-line>, <addr-line>Guangdong Province</addr-line>, <country>China</country>
</aff>
<aff id="aff5">
<label>
<sup>5</sup>
</label>Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, <addr-line>Guangzhou</addr-line>, <addr-line>Guangdong Province</addr-line>, <country>China</country>
</aff>
<aff id="aff6">
<label>
<sup>6</sup>
</label>The Second School of Clinical Medicine, Guangzhou University of Chinese Medicine, <addr-line>Guangzhou</addr-line>, <addr-line>Guangdong Province</addr-line>, <country>China</country>
</aff>
<author-notes>
<fn fn-type="edited-by">
<p>
<bold>Approved by:</bold> Frontiers Editorial Office, Frontiers Media SA, Switzerland</p>
</fn>
<corresp id="c001">&#x2a;Correspondence: Zhen Shen, <email>863491423@qq.com</email>; Ziwei Jiang, <email>jiangziwei1686@gzucm.edu.cn</email>
</corresp>
<fn fn-type="equal" id="fn1">
<label>
<sup>&#x2020;</sup>
</label>
<p>These authors have contributed equally to this&#x20;work</p>
</fn>
<fn fn-type="other">
<p>This article was submitted to Ethnopharmacology, a section of the journal Frontiers in Pharmacology</p>
</fn>
</author-notes>
<pub-date pub-type="epub">
<day>23</day>
<month>07</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="collection">
<year>2021</year>
</pub-date>
<volume>12</volume>
<elocation-id>739503</elocation-id>
<history>
<date date-type="received">
<day>11</day>
<month>07</month>
<year>2021</year>
</date>
<date date-type="accepted">
<day>13</day>
<month>07</month>
<year>2021</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright &#xa9; 2021 Sun, Li, Xie, Mai, Zhang, Luo, Yan, Li, Dong, Huang, Shen and Jiang.</copyright-statement>
<copyright-year>2021</copyright-year>
<copyright-holder>Sun, Li, Xie, Mai, Zhang, Luo, Yan, Li, Dong, Huang, Shen and Jiang</copyright-holder>
<license xlink:href="http://creativecommons.org/licenses/by/4.0/">
<p>This is an open-access article distributed under the terms of the Creative&#x20;Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these&#x20;terms.</p>
</license>
</permissions>
<related-article id="RA1" related-article-type="corrected-article" journal-id="Front Endocrinol (Lausanne)" journal-id-type="nlm-ta" xlink:href="10.3389/fphar.2021.603734" ext-link-type="doi">A Corrigendum on <article-title>Exploring the Mechanism of Total Flavonoids of Drynariae Rhizoma to Improve Large Bone Defects by Network Pharmacology and Experimental Assessment</article-title> by Sun, W., Li, M., Xie, L., Mai, Z., Zhang, Y., Luo, L., Yan, Z., Li, Z., Dong, H., Huang, F., Shen, Z., and Jiang, Z. (2021). Front. Pharmacol. 12:603734. doi: <object-id>10.3389/fphar.2021.603734</object-id>
</related-article>
<kwd-group>
<kwd>drynariae rhizoma</kwd>
<kwd>experimental assessment</kwd>
<kwd>gusuibu</kwd>
<kwd>large bone defects</kwd>
<kwd>network pharmacology</kwd>
</kwd-group>
</article-meta>
</front>
<body>
<p>In the original article, there was a mistake in the legend for <bold>Figure&#x20;8</bold> and <xref ref-type="fig" rid="F9">Figure&#x20;9</xref> as published. In <bold>Figure&#x20;8</bold>, the numbering of figure legends was incorrect. In <xref ref-type="fig" rid="F9">Figure&#x20;9</xref>, the description of previous <xref ref-type="fig" rid="F9">Figure&#x20;9</xref> was not detailed enough. The correct legends appear&#x20;below.</p>
<p>&#x201c;<bold>FIGURE 8</bold> &#x7c; Representative images of BMSCs with the alizarin red staining to determine the mineralized nodules. <bold>(A)</bold> Control group; <bold>(B)</bold> TFDR low dosage group; <bold>(C)</bold> TFDR medium dosage group; <bold>(D)</bold> TFDR high dosage group; <bold>(E)</bold> The mineralized nodules at each time point of the control group, TFDR low dosage group, TFDR medium dosage group, and TFDR high dosage group were evaluated. The data are expressed as the mean&#x20;&#xb1; SEM of three independent experiments. <sup>&#x23;</sup>
<italic>p</italic>&#x20;&#x3c; 0.05 vs. control group, <sup>&#x394;</sup>
<italic>p</italic>&#x20;&#x3c; 0.05 vs. TFDR low dosage group, <sup>&#x25b2;</sup>
<italic>p</italic>&#x20;&#x3c; 0.05 vs. TFDR high dosage group.&#x201d;</p>
<p>&#x201c;<xref ref-type="fig" rid="F9">FIGURE 9</xref> &#x7c; The expressions of p38 MAPK, BMP-2, VEGF, HIF-1&#x3b1;, and RUNX-2 mRNA on BMSCs by quantitative real-time PCR. The data are expressed as the mean&#x20;&#xb1; SEM of three independent experiments. &#x2a;<italic>p</italic>&#x20;&#x3c; 0.05 vs. control group, <sup>&#x23;</sup>
<italic>p</italic>&#x20;&#x3c; 0.05 vs. the TFDR low dosage group, TFDR high dosage group. <bold>(B)</bold> (a) p38 MAPK, p-p38 MAPK, BMP-2, RUNX-2, VEGF, and HIF-1&#x3b1;protein expression on BMSCs detected by western blot analysis. (b)&#x2013;(g) were statistical analysis of (a). The data are expressed as the mean&#x20;&#xb1; SEM of three independent experiments. &#x2a;<italic>p</italic>&#x20;&#x3c; 0.01 vs. the Control group; <sup>&#x23;</sup>
<italic>p</italic>&#x20;&#x3c; 0.01 vs. the TFDR low dosage group.&#x201d;</p>
<p>In addition, there was a mistake in <xref ref-type="fig" rid="F3">Figure&#x20;3</xref>, <xref ref-type="fig" rid="F7">Figure&#x20;7</xref> and <xref ref-type="fig" rid="F9">Figure&#x20;9</xref> as published. The authors uploaded the wrong version of <xref ref-type="fig" rid="F3">Figure&#x20;3</xref> and <xref ref-type="fig" rid="F7">Figure&#x20;7</xref>, and uploaded the previous version of Figure&#x20;9 by mistake. The corrected <xref ref-type="fig" rid="F3">Figure&#x20;3</xref>, <xref ref-type="fig" rid="F7">Figure&#x20;7</xref> and <xref ref-type="fig" rid="F9">Figure&#x20;9</xref> appear&#x20;below.</p>
<p>The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.</p>
<fig id="F3" position="float">
<label>FIGURE 3</label>
<caption>
<p>Evaluation of radiological, micro-CT images, angiogenesis of tibial bone repair of five groups <bold>(A)</bold>. Radiological evaluation of bone repair <bold>(A)</bold> (a). Representative radiographs of bone repair of the five groups at 12&#xa0;weeks after surgery (<italic>n</italic>&#x20;&#x3d; 3 per group); <bold>(A)</bold> (b). Quantitative analysis of radiographic scores <bold>(B)</bold>. Representative micro-CT images of bone repair <bold>(B)</bold> (a). Three-dimensional reconstructed images of bone defects at 12&#xa0;weeks after surgical dotted boxes indicate region of interest (ROI), representing bone distracted gaps (<italic>n</italic>&#x20;&#x3d; 3 per group); <bold>(B)</bold> (b). Quantification of bone tissue volume/total tissue volume and (BV/TV) insides bone distracted regions <bold>(C)</bold>. Evaluation of angiogenesis within the distracted gaps at 4&#xa0;weeks after surgery <bold>(C)</bold> (a). Representative angiographs of the distracted gaps in the five groups (<italic>n</italic>&#x20;&#x3d; 3 per group) <bold>(C)</bold> (b). Quantification of vessel volume within the distracted regions (yellow dotted boxes indicate region of interest (ROI), representing bone distracted gaps). The data are expressed as the mean&#x20;&#xb1; SEM of three independent experiments. &#x2a;<italic>p</italic>&#x20;&#x3c; 0.05, compared with the control group; <sup>&#x23;</sup>
<italic>p</italic>&#x20;&#x3c; 0.05, compared with the model group; <sup>&#x394;</sup>
<italic>p</italic>&#x20;&#x3c; 0.05, compared the difference of the medium dose with the low and high doses in the TFDR&#x20;group.</p>
</caption>
<graphic xlink:href="fphar-12-739503-g003.tif"/>
</fig>
<fig id="F7" position="float">
<label>FIGURE 7</label>
<caption>
<p>The ALP staining assay is performed to evaluate ALP activity after incubated for 10&#xa0;days <bold>(A)</bold>. TFDR low dosage group; <bold>(B)</bold>. TFDR medium dosage group; <bold>(C)</bold>. TFDR high dosage group; control group; <bold>(D)</bold>. control group <bold>(E)</bold>. The ALP activity at each time point of the control group, TFDR low dosage group, TFDR medium dosage group, and TFDR high dosage group. The data are expressed as the mean&#x20;&#xb1; SEM of three independent experiments. <sup>&#x23;</sup>
<italic>p</italic>&#x20;&#x3c; 0.05 vs. control group, <sup>&#x394;</sup>
<italic>p</italic>&#x20;&#x3c; 0.05 vs. TFDR low dosage group, <sup>&#x25b2;</sup>
<italic>p</italic>&#x20;&#x3c; 0.05 vs. TFDR high dosage&#x20;group.</p>
</caption>
<graphic xlink:href="fphar-12-739503-g007.tif"/>
</fig>
<fig id="F9" position="float">
<label>FIGURE 9</label>
<caption>
<p>The expressions of p38 MAPK, BMP-2, VEGF, HIF-1&#x3b1;, and RUNX-2 mRNA on BMSCs by quantitative real-time PCR. The data are expressed as the mean&#x20;&#xb1; SEM of three independent experiments. &#x2a;<italic>p</italic>&#x20;&#x3c; 0.05 vs. control group, <sup>&#x23;</sup>
<italic>p</italic>&#x20;&#x3c; 0.05 vs. the TFDR low dosage group, TFDR high dosage group. <bold>(B)</bold> (a) p38 MAPK, p-p38 MAPK, BMP-2, RUNX-2, VEGF, and HIF-1&#x3b1;protein expression on BMSCs detected by western blot analysis. (b)&#x2013;(g) were statistical analysis of (a). The data are expressed as the mean&#x20;&#xb1; SEM of three independent experiments. &#x2a;<italic>p</italic>&#x20;&#x3c; 0.01 vs. the Control group; <sup>&#x23;</sup>
<italic>p</italic>&#x20;&#x3c; 0.01 vs. the TFDR low dosage&#x20;group.</p>
</caption>
<graphic xlink:href="fphar-12-739503-g009.tif"/>
</fig>
</body>
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