Research Article

Early Oral Ovalbumin Exposure during Maternal Milk Feeding Prevents Spontaneous Allergic Sensitization in Allergy-Prone Rat Pups

Figure 4

Mucosal immunolocalization of TGF-β1 and Smad4 in DR and FF pups at day 14 with or without daily/intermittent treatment with OVA. Representative images are shown for all groups. Positive staining is indicated as a brown color. TGF-β1 (a–f: DR (a), (b), (c), FF (d), (e), and negative control (f)) and Smad4 (G-L: DR (g), (h), (i), FF (j), (k), and negative control (l)).
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