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Original Research

Evaluation of Human Esophageal Epithelium Permeability in Presence of Different Formulations Containing Hyaluronic Acid and Chondroitin Sulphate

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Pages 57-66 | Published online: 04 Mar 2020

Figures & data

Figure 1 Scheme of the in vitro experimental design.

Figure 1 Scheme of the in vitro experimental design.

Figure 2 Morphological structure of human 3D reconstructed oesophageal epithelium (A) and its similarity with the biopsy of human full-thickness oesophageal mucosa (B).

Figure 2 Morphological structure of human 3D reconstructed oesophageal epithelium (A) and its similarity with the biopsy of human full-thickness oesophageal mucosa (B).

Table 1 Test Item Characterization

Figure 3 Caffeine penetration protocol.

Figure 3 Caffeine penetration protocol.

Table 2 Micrograms of Caffeine Quantified in the Receptor Fluid at 15 mins, 1 hr and 2 hrs Under Neutral Conditions

Table 3 Rate of Caffeine Quantified in the Receptor Fluid at 15 mins, 1 hr and 2 hrs Under Neutral Conditions

Table 4 Rate of Caffeine Considering the Caffeine Quantified After 2 hrs When the Negative Control Was Applied Under Neutral Conditions as 100%

Figure 4 Rate of caffeine considering the caffeine quantified after 2 hrs when the negative control (NC) was applied under neutral condition as 100%.

Figure 4 Rate of caffeine considering the caffeine quantified after 2 hrs when the negative control (NC) was applied under neutral condition as 100%.

Table 5 Micrograms of Caffeine Quantified in the Receptor Fluid at 15 mins, 1 hr and 2 hrs Under Acidic Conditions

Table 6 Rate of Caffeine Quantified in the Receptor Fluid at 15 mins, 1 hr and 2 hrs Under Acidic Conditions

Table 7 Rate of Caffeine Considering the Caffeine Quantified After 2 hrs When the Negative Control Was Applied Under Acid Conditions as 100%

Table 8 pH Measurements

Figure 5 Rate of caffeine considering the caffeine quantified after 2 hrs in the negative control as 100% under acidic conditions.

Figure 5 Rate of caffeine considering the caffeine quantified after 2 hrs in the negative control as 100% under acidic conditions.

Figure 6 Lucifer yellow flux after 2 hrs of treatment followed by product washing under neutral conditions.

Figure 6 Lucifer yellow flux after 2 hrs of treatment followed by product washing under neutral conditions.

Figure 7 Luciferase yellow flux after 2 hrs of treatment followed by product washing under acidic conditions.

Figure 7 Luciferase yellow flux after 2 hrs of treatment followed by product washing under acidic conditions.