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肝清除率 - 版本历史
2026-04-21T16:57:39Z
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2026年1月25日 (日) 00:34 77921020
2026-01-25T00:34:50Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上一版本</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">2026年1月25日 (日) 00:34的版本</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3" >第3行：</td>
<td colspan="2" class="diff-lineno">第3行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <div style="margin-bottom: 30px; border-bottom: 1.2px solid #e2e8f0; padding-bottom: 25px;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <div style="margin-bottom: 30px; border-bottom: 1.2px solid #e2e8f0; padding-bottom: 25px;"></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="font-size: 1.1em; margin: 10px 0; color: #334155; text-align: justify;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="font-size: 1.1em; margin: 10px 0; color: #334155; text-align: justify;"></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <strong>肝清除率</strong>（Hepatic Clearance，符号 <strong><del class="diffchange diffchange-inline">$CL_H$</del></strong><del class="diffchange diffchange-inline">）是指单位时间内肝脏能将多少体积血液中的药物完全清除干净的能力。它是总清除率（$CL_{</del>total<del class="diffchange diffchange-inline">}$）的主要组成部分（通常 $CL_{total} = CL_H + CL_R$）。肝清除率的大小取决于两个关键因素：流经肝脏的血液量（</del><strong>肝血流量</strong>，Q）和肝脏去除药物的效率（<strong>肝提取率</strong>，E）。对于 <strong>[[MET抑制剂]]</strong>（如卡马替尼、特泊替尼）等主要经肝脏 <strong>[[CYP450]]</strong> 酶代谢的药物，肝清除率直接决定了药物的半衰期和稳态浓度。当肝功能受损（如肝硬化）或合用酶抑制剂时，肝清除率下降，导致药物蓄积中毒。</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <strong>肝清除率</strong>（Hepatic Clearance，符号 <strong><ins class="diffchange diffchange-inline">CL<sub>H</sub></ins></strong><ins class="diffchange diffchange-inline">）是指单位时间内肝脏能将多少体积血液中的药物完全清除干净的能力。它是总清除率（CL<sub></ins>total<ins class="diffchange diffchange-inline"></sub>）的主要组成部分。肝清除率的大小取决于两个关键因素：流经肝脏的血液量（</ins><strong>肝血流量</strong>，Q）和肝脏去除药物的效率（<strong>肝提取率</strong>，E）。对于 <strong>[[MET抑制剂]]</strong>（如卡马替尼、特泊替尼）等主要经肝脏 <strong>[[CYP450]]</strong> 酶代谢的药物，肝清除率直接决定了药物的半衰期和稳态浓度。当肝功能受损（如肝硬化）或合用酶抑制剂时，肝清除率下降，导致药物蓄积中毒。</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l25" >第25行：</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0; width: 40%;">核心公式</th></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0; width: 40%;">核心公式</th></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;"><del class="diffchange diffchange-inline">$CL_H </del>= Q <del class="diffchange diffchange-inline">\times </del>E<del class="diffchange diffchange-inline">$</del></td></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;"><ins class="diffchange diffchange-inline">CL<sub>H</sub> </ins>= Q <ins class="diffchange diffchange-inline">× </ins>E</td></div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l37" >第37行：</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">关键参数</th></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">关键参数</th></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">提取率 (<del class="diffchange diffchange-inline">$E_H$</del>)<br>固有清除率 (<del class="diffchange diffchange-inline">$CL_{</del>int<del class="diffchange diffchange-inline">}$</del>)</td></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">提取率 (<ins class="diffchange diffchange-inline">E</ins>)<br>固有清除率 (<ins class="diffchange diffchange-inline">CL<sub></ins>int<ins class="diffchange diffchange-inline"></sub></ins>)</td></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l62" >第62行：</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <div style="background-color: #f1f5f9; padding: 15px; border-radius: 8px; border: 1px dashed #94a3b8; text-align: center; font-family: Arial, sans-serif; font-size: 1.1em; color: #1e40af; margin: 20px 0;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <div style="background-color: #f1f5f9; padding: 15px; border-radius: 8px; border: 1px dashed #94a3b8; text-align: center; font-family: Arial, sans-serif; font-size: 1.1em; color: #1e40af; margin: 20px 0;"></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <strong><del class="diffchange diffchange-inline">$CL_H </del>= Q <del class="diffchange diffchange-inline">\times </del>E<del class="diffchange diffchange-inline">$</del></strong></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <strong><ins class="diffchange diffchange-inline">CL<sub>H</sub> </ins>= Q <ins class="diffchange diffchange-inline">× </ins>E</strong></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l68" >第68行：</td>
<td colspan="2" class="diff-lineno">第68行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <li style="margin-bottom: 12px;"><strong>肝提取率 (Extraction Ratio, E)：</strong></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <li style="margin-bottom: 12px;"><strong>肝提取率 (Extraction Ratio, E)：</strong></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <br>指血液流经肝脏一次，有多少比例的药物被清除。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <br>指血液流经肝脏一次，有多少比例的药物被清除。</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <br>• <del class="diffchange diffchange-inline">公式：$</del>E <del class="diffchange diffchange-inline">= \frac{C_{in} - C_{out}}{C_{in}}$</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <br>• <ins class="diffchange diffchange-inline"><strong></ins>E<<ins class="diffchange diffchange-inline">/strong</ins>> 的大小取决于<strong>固有清除率</strong><ins class="diffchange diffchange-inline">（CL<sub></ins>int<ins class="diffchange diffchange-inline"></sub></ins>，即肝酶的活性）和<strong>蛋白结合率</strong>（只有游离药物能被代谢）。</li></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline"> </del><<del class="diffchange diffchange-inline">br</del>><del class="diffchange diffchange-inline">• $E$ </del>的大小取决于<strong>固有清除率</strong><del class="diffchange diffchange-inline">（$CL_{</del>int<del class="diffchange diffchange-inline">}$</del>，即肝酶的活性）和<strong>蛋白结合率</strong>（只有游离药物能被代谢）。</li></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </ul></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </ul></div></td></tr>
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<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l84" >第84行：</td>
<td colspan="2" class="diff-lineno">第83行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr style="background-color: #f8fafc; border-bottom: 2px solid #0f172a;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr style="background-color: #f8fafc; border-bottom: 2px solid #0f172a;"></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="padding: 12px; border: 1px solid #cbd5e1; color: #0f172a; width: 20%;">分类</th></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="padding: 12px; border: 1px solid #cbd5e1; color: #0f172a; width: 20%;">分类</th></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <th style="padding: 12px; border: 1px solid #cbd5e1; color: #1e40af; width: 35%;">高提取率药物 (<del class="diffchange diffchange-inline">$</del>E > 0.7<del class="diffchange diffchange-inline">$</del>)</th></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <th style="padding: 12px; border: 1px solid #cbd5e1; color: #1e40af; width: 35%;">高提取率药物 (E > 0.7)</th></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <th style="padding: 12px; border: 1px solid #cbd5e1; color: #b91c1c; width: 45%;">低提取率药物 (<del class="diffchange diffchange-inline">$</del>E < 0.3<del class="diffchange diffchange-inline">$</del>)</th></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <th style="padding: 12px; border: 1px solid #cbd5e1; color: #b91c1c; width: 45%;">低提取率药物 (E < 0.3)</th></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td></tr>
</table>
77921020
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77921020：建立内容为“<div style="padding: 0 4%; line-height: 1.8; color: #1e293b; font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', Arial, sans-serif; background-color: #ffffff…”的新页面
2026-01-25T00:32:18Z
<p>建立内容为“<div style="padding: 0 4%; line-height: 1.8; color: #1e293b; font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', Arial, sans-serif; background-color: #ffffff…”的新页面</p>
<p><b>新页面</b></p><div><div style="padding: 0 4%; line-height: 1.8; color: #1e293b; font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', Arial, sans-serif; background-color: #ffffff; max-width: 1200px; margin: auto;"><br />
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<p style="font-size: 1.1em; margin: 10px 0; color: #334155; text-align: justify;"><br />
<strong>肝清除率</strong>（Hepatic Clearance，符号 <strong>$CL_H$</strong>）是指单位时间内肝脏能将多少体积血液中的药物完全清除干净的能力。它是总清除率（$CL_{total}$）的主要组成部分（通常 $CL_{total} = CL_H + CL_R$）。肝清除率的大小取决于两个关键因素：流经肝脏的血液量（<strong>肝血流量</strong>，Q）和肝脏去除药物的效率（<strong>肝提取率</strong>，E）。对于 <strong>[[MET抑制剂]]</strong>（如卡马替尼、特泊替尼）等主要经肝脏 <strong>[[CYP450]]</strong> 酶代谢的药物，肝清除率直接决定了药物的半衰期和稳态浓度。当肝功能受损（如肝硬化）或合用酶抑制剂时，肝清除率下降，导致药物蓄积中毒。<br />
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<div class="medical-infobox mw-collapsible mw-collapsed" style="width: 100%; max-width: 320px; margin: 0 auto 35px auto; border: 1.2px solid #bae6fd; border-radius: 12px; background-color: #ffffff; box-shadow: 0 8px 20px rgba(0,0,0,0.05); overflow: hidden;"><br />
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<div style="padding: 15px; color: #1e40af; background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%); text-align: center; cursor: pointer;"><br />
<div style="font-size: 1.2em; font-weight: bold; letter-spacing: 1.2px;">Hepatic Clearance</div><br />
<div style="font-size: 0.7em; opacity: 0.85; margin-top: 4px; white-space: nowrap;">Metabolism & Excretion (点击展开)</div><br />
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<div style="padding: 25px; text-align: center; background-color: #f8fafc;"><br />
<div style="display: inline-block; background: #ffffff; border: 1px solid #e2e8f0; border-radius: 12px; padding: 20px; box-shadow: 0 4px 10px rgba(0,0,0,0.04);"><br />
[[Image:Liver_metabolism_clearance_diagram.png|100px|肝脏药物代谢示意图]]<br />
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<div style="font-size: 0.8em; color: #64748b; margin-top: 12px; font-weight: 600;">药物代谢的“化工厂”</div><br />
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<table style="width: 100%; border-spacing: 0; border-collapse: collapse; font-size: 0.85em;"><br />
<tr><br />
<th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0; width: 40%;">核心公式</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">$CL_H = Q \times E$</td><br />
</tr><br />
<tr><br />
<th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">主要机制</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #1e40af;">酶代谢 (Phase I/II)<br>胆汁排泄</td><br />
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<tr><br />
<th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">关键酶系</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #b91c1c;"><strong>[[CYP450]]</strong> (3A4, 2C8等)</td><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">关键参数</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">提取率 ($E_H$)<br>固有清除率 ($CL_{int}$)</td><br />
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<tr><br />
<th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">评估指标</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #166534;"><strong>[[Child-Pugh分级]]</strong></td><br />
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<tr><br />
<th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">影响药物</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">卡马替尼, 特泊替尼</td><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569;">特殊效应</th><br />
<td style="padding: 6px 12px; color: #0f172a;">[[首过效应]] (First-pass)</td><br />
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<h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">决定因素：血流与酶的博弈</h2><br />
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<p style="margin: 15px 0; text-align: justify;"><br />
肝清除率并非一个单一的数值，它由<strong>“运送药物的速度”</strong>（肝血流量，Q）和<strong>“处理药物的能力”</strong>（肝提取率，E）共同决定。<br />
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<div style="background-color: #f1f5f9; padding: 15px; border-radius: 8px; border: 1px dashed #94a3b8; text-align: center; font-family: Arial, sans-serif; font-size: 1.1em; color: #1e40af; margin: 20px 0;"><br />
<strong>$CL_H = Q \times E$</strong><br />
</div><br />
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<ul style="padding-left: 25px; color: #334155;"><br />
<li style="margin-bottom: 12px;"><strong>肝提取率 (Extraction Ratio, E)：</strong><br />
<br>指血液流经肝脏一次，有多少比例的药物被清除。<br />
<br>• 公式：$E = \frac{C_{in} - C_{out}}{C_{in}}$<br />
<br>• $E$ 的大小取决于<strong>固有清除率</strong>（$CL_{int}$，即肝酶的活性）和<strong>蛋白结合率</strong>（只有游离药物能被代谢）。</li><br />
</ul><br />
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<h2 style="background: #fff1f2; color: #9f1239; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #9f1239; font-weight: bold;">药物分类：高提取 vs 低提取</h2><br />
<div style="background-color: #fff5f5; border-left: 5px solid #e11d48; padding: 15px 20px; margin: 20px 0; border-radius: 4px;"><br />
<h3 style="margin-top: 0; color: #be123c; font-size: 1.1em;">为什么靶向药怕“酶抑制剂”？</h3><br />
<p style="margin-bottom: 0; text-align: justify; font-size: 0.95em; color: #334155;"><br />
大多数小分子靶向药（包括 MET 抑制剂）属于<strong>“低提取率药物”</strong>。这意味着它们的清除受限于肝酶的干活速度，而不是血流速度。<br />
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<th style="padding: 12px; border: 1px solid #cbd5e1; color: #0f172a; width: 20%;">分类</th><br />
<th style="padding: 12px; border: 1px solid #cbd5e1; color: #1e40af; width: 35%;">高提取率药物 ($E > 0.7$)</th><br />
<th style="padding: 12px; border: 1px solid #cbd5e1; color: #b91c1c; width: 45%;">低提取率药物 ($E < 0.3$)</th><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">限制因素</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>肝血流量</strong> (Flow-limited)<br>肝酶能力过剩，血流多少就清多少。</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>酶活性</strong> (Capacity-limited)<br>血流再快也没用，酶忙不过来。</td><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">易受影响因素</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">心衰、休克 (血流减少)</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>药物相互作用</strong> (酶诱导/抑制)<br>肝细胞坏死</td><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">代表药物</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">普萘洛尔, 利多卡因</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>[[卡马替尼]]</strong>, <strong>[[特泊替尼]]</strong>, 华法林</td><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">首过效应</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">极强 (口服生物利用度低)</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">较弱 (口服生物利用度高)</td><br />
</tr><br />
</table><br />
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<h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">临床意义：MET 抑制剂管理</h2><br />
<p style="margin: 15px 0; text-align: justify;"><br />
由于 MET 抑制剂主要经肝清除，临床使用需特别注意：<br />
</p><br />
<ul style="padding-left: 25px; color: #334155;"><br />
<li style="margin-bottom: 12px;"><strong>药物相互作用 (DDI)：</strong><br />
<br>• <strong>CYP3A4 抑制剂</strong>（如伊曲康唑、葡萄柚汁）：会降低肝清除率，导致 MET 抑制剂浓度升高，毒性增加。<br />
<br>• <strong>CYP3A4 诱导剂</strong>（如利福平）：会加速肝清除，导致药物浓度不足，疗效失效。</li><br />
<li style="margin-bottom: 12px;"><strong>肝功能不全：</strong><br />
<br>使用 <strong>[[Child-Pugh分级]]</strong> 评估。<br />
<br>• <strong>A 级 (轻度)：</strong> 通常无需调整剂量。<br />
<br>• <strong>B 级 (中度) / C 级 (重度)：</strong> 肝清除率显著下降，需减量或密切监测。</li><br />
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<div style="font-size: 0.92em; line-height: 1.6; color: #1e293b; margin-top: 50px; border-top: 2px solid #0f172a; padding: 15px 25px; background-color: #f8fafc; border-radius: 0 0 10px 10px;"><br />
<span style="color: #0f172a; font-weight: bold; font-size: 1.05em; display: inline-block; margin-bottom: 15px;">学术参考文献与权威点评</span><br />
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<p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"><br />
[1] <strong>Wilkinson GR, Shand DG. (1975).</strong> <em>A physiological approach to hepatic drug clearance.</em> <strong>[[Clinical Pharmacology & Therapeutics]]</strong>.<br><br />
<span style="color: #475569;">[经典理论]：该文献奠定了肝清除率的“静脉平衡模型”和“并联管模型”理论基础，详细阐述了血流受限与酶受限的区别。</span><br />
</p><br />
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<p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"><br />
[2] <strong>FDA Label.</strong> <em>TABRECTA (capmatinib) Prescribing Information.</em> <strong>[[FDA]]</strong>. 2020.<br><br />
<span style="color: #475569;">[临床数据]：卡马替尼说明书指出，其主要通过 CYP3A4 和醛氧化酶代谢，清除率受强效 CYP3A4 抑制剂显著影响，建议避免联用。</span><br />
</p><br />
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<p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"><br />
[3] <strong>Falcoz C, et al. (2016).</strong> <em>Pharmacokinetics of Tepotinib in Patients with Solid Tumors.</em> <strong>[[Clinical Pharmacokinetics]]</strong>.<br><br />
<span style="color: #475569;">[药物特性]：特泊替尼通过双通道（CYP3A4 和 CYP2C8）及胆汁排泄清除，相比单一通道药物，其受单一酶抑制剂的影响可能略小。</span><br />
</p><br />
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<div style="margin: 40px 0; border: 1px solid #e2e8f0; border-radius: 8px; overflow: hidden; font-family: 'Helvetica Neue', Arial, sans-serif; font-size: 0.9em;"><br />
<div style="background-color: #eff6ff; color: #1e40af; padding: 8px 15px; font-weight: bold; text-align: center; border-bottom: 1px solid #dbeafe;"><br />
肝清除率 · 知识图谱<br />
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<table style="width: 100%; border-collapse: collapse; background-color: #ffffff;"><br />
<tr style="border-bottom: 1px solid #f1f5f9;"><br />
<td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle; white-space: nowrap;">构成要素</td><br />
<td style="padding: 10px 15px; color: #334155;"><strong>[[肝血流量]]</strong> (Q) • <strong>[[肝提取率]]</strong> (E)</td><br />
</tr><br />
<tr style="border-bottom: 1px solid #f1f5f9;"><br />
<td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle; white-space: nowrap;">代谢主力</td><br />
<td style="padding: 10px 15px; color: #334155;"><strong>[[CYP450]]</strong> 酶系 (Phase I) • 结合酶 (Phase II)</td><br />
</tr><br />
<tr style="border-bottom: 1px solid #f1f5f9;"><br />
<td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle; white-space: nowrap;">临床影响</td><br />
<td style="padding: 10px 15px; color: #334155;">药物相互作用 (DDI) • 肝功能调整剂量</td><br />
</tr><br />
<tr><br />
<td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle; white-space: nowrap;">MET相关</td><br />
<td style="padding: 10px 15px; color: #334155;">[[卡马替尼]]/[[特泊替尼]] 均为低提取率药物 (酶依赖)</td><br />
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</table><br />
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