Table 1 The organ and adipose weight (% of body weight) in rats fed different doses of MP-PS and probiotics after 56 days.

% of body weight	Con	PS-MP1	PS-MP5	PS-MP10	PS-MP10 + Pro	Pro
Liver	3.35 ± 0.08^a	3.69 ± 0.09^b	3.52 ± 0.06^ab	3.49 ± 0.07^ab	3.35 ± 0.04^a	3.38 ± 0.09^a
Spleen	0.16 ± 0.00	0.16 ± 0.01	0.16 ± 0.01	0.16 ± 0.01	0.16 ± 0.01	0.15 ± 0.00
Kidney	0.87 ± 0.04	0.87 ± 0.02	0.87 ± 0.02	0.87 ± 0.02	0.86 ± 0.02	0.85 ± 0.02
Abdominal adipose	1.40 ± 0.20	1.49 ± 0.19	1.40 ± 0.17	1.49 ± 0.14	1.31 ± 0.09	1.56 ± 0.09
Testis	0.76 ± 0.04^b	0.72 ± 0.02^ab	0.69 ± 0.01^ab	0.67 ± 0.02^a	0.74 ± 0.02^b	0.74 ± 0.01^b
Epididymis	0.31 ± 0.01	0.27 ± 0.01	0.31 ± 0.01	0.28 ± 0.01	0.31 ± 0.01	0.29 ± 0.02
Epididymis adipose	1.39 ± 0.08	1.36 ± 0.08	1.39 ± 0.06	1.49 ± 0.09	1.42 ± 0.07	1.48 ± 0.08

Data are shown as the mean ± S.E.M. (n = 7 rats/group). Con: control; PS-MP1: fed 1 mg/kg Polystyrene microplastic (MP-PS) per day; PS-MP5: fed 5 mg/kg MP-PS per day; PS-MP10: fed 10 mg/kg PS-MP per day; PS-MP10 + Pro: fed 10 mg/kg PS-MP + 10⁸ CFU probiotics per day; Pro: fed 10⁸ CFU probiotics per day.
The values with different letters (a–b) represent significantly different (p < 0.05) as analyzed by Duncan’s multiple range test.

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