Influence of polyethylene terephthalate (PET) microplastic on selected active substances in the intramural neurons of the porcine duodenum

Table 2 Statistical analysis of histological study

Parametr (µm)	C	LD	HD
Length of villi	356.38 ± 46.57	315.81*** ± 45.14	272.14*** ± 45.22
Deep of crypts	594.25 ± 85.62	585.87 ± 68.27	561.37 ± 98.34
Thickness of mucosa	915.97 ± 115.79	920.00 ± 113.66	779.90*** ± 114.14
Thickness of submucosa	232.58 ± 44.99	219.94 ± 44.77	221.64 ± 49.79
Thickness of muscularis externa	423.05 ± 54.44	411.20 ± 63.64	430.5*** ± 56.14

The length of villi, the deep of crypts, the thickness of mucosa, the thickness of submucosa, and the thickness of the muscularis externa in the duodenum of pigs from the C, LD and HD group (mean ± SD). ***p < 0.001 indicate statistically significant differences in the expression of the tested substances in relation to the control group.

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