Ginsenoside Rh4 Triggers Ferroptosis in Lung Cancer: Targeting &lt;i&gt;KEAP1&lt;/i&gt;/&lt;i&gt;NRF2&lt;/i&gt;/&lt;i&gt;HO-1&lt;/i&gt; and Remodeling Gut Microbiota for Butyrate-Mediated &lt;i&gt;ATF3&lt;/i&gt; Activation. The gene discussed is HMOX1; the disease is lung cancer.