<p>The intestinal sections from control mice presented intact structures with complete intestinal mucosae and villi (3A, 3D and 3G). TBI caused abnormal intestinal wall morphology and damaged the intestinal villi and structural integrity (3B, 3E and 3H). <i>Lactobacillus acidophilus</i> recovered intestinal mucosae and restructured villi (3C, 3F and 3I).</p