Correlation analysis of the severity of alcoholic fatty liver disease, fat area in the abdominal cavity and serum inflammatory factors
2019
Objective
To investigate the correlation between the severity of alcoholic fatty liver disease and the amount of fat in the abdominal cavity and the serum inflammatory factor IL-18 and IL-8.
Methods
From October 2016 to October 2017, one hundred and twenty patients with AFLD in the First Hospital of Hebei Medical University were divided into light, medium, heavy groups according to the severity of fatty lesions by color Doppler Ultrasound.There were 40 mild patients, 50 moderate patients and 30 severe patients.Forty healthy subjects were selected as controls.All the participants underwent CT scanning.The intra-abdominal fat area (VAT), abdominal subcutaneous fat area (SAT) and total abdominal fat area (TA) were measured.The liver function was measured by biochemical analyzer and enzyme-linked immunoassay (ELISA). (ELSIA) IL-18 was detected and IL-8 was detected by radioimmunoassay.
Results
The VAT of the healthy control group and the mild, medium and severe AFLD group were (70.28±10.19), (114.38 ± 9.97), (146.73±10.19), (163.38±12.69) cm2.The TA of the healthy control group and the mild, medium and severe AFLD group were (256.72±34.56), (332.19 ±33.28), (387.49±32.28), (478.19 ±31.02) cm2.The SAT of the healthy control group and the light, medium and severe AFLD group were (156.23±28.19), (203.43±27.12), (246.19±26.89), (271.19 ±27.94) cm2, respectively.Aspartate aminotransferase (AST) of the healthy control group and the mild, medium and severe AFLD group were (18.50±1.12), (23.50±1.21), (25.50±1.24), (29.50± 1.43) U/L.Alanine aminotransferase (ALT) of the healthy control group and the light, medium and severe AFLD group were (18.50±2.14), (26.50±2.22), (35.50±2.34), (38.50±2.11) U/L.γ-glutamyltransferaseof the healthy control group and the light, medium and severe AFLD group were (16.50±2.11), (32.50±2.23), (47.50±2.31), (48.00±2.43) U/L, respectively.Compared with the healthy control group, VAT, TA, SAT, AST, ALT andγ-GT in the light, medium and heavy AFLD group showed statistically significant differences (P<0.05). Compared with the mild AFLD group, VAT, TA, SAT, AST, ALT and γ-GT in the medium and heavy AFLD group showed statistically significant differences (P<0.05). Compared with the moderate AFLD group, the VAT, TA, SAT, AST, ALT, and γ-GT of the severe AFLD group showed statistically significant differences (P<0.05). The data of the three AFLD groups showed that the concentration of all indicators were increasing as the severity of fat deepened.IL-18 of the healthy control group and the light, medium and severe AFLD group were (45.67±4.51), (52.18±5.09), (59.87±4.98), (64.18±5.12) ng/L; IL-8 of the healthy control group and the light, medium and severe AFLD group were (78.92±5.07), (115.62±4.89), (223.76± 6.78), (286.42±7.02) g/L.Compared with every group, IL-18 and IL-8 of light, medium and severe AFLD group showed statistically significant differences (F=1035.67, 2.93×105, P<0.001); compared with mild AFLD group, IL-18 and IL-8 of medium and heavy group showed statistically significant differences; compared with moderate AFLD group, IL-18 and IL-8 of severe group AFLD showed statistically significant differences (P<0.001). The levels of inflammatory factors IL-18 and IL-8 increased with the severity of steatosis.The severity of AFLD was significantly positively correlated with VAT, TA, SAT, IL-18 and IL-8 ( r 0.415(P<0.001), 0.435(P<0.001), 0.512(P<0.001), 0.274(P<0.001), 0.689(P<0.001).
Conclusion
Fat control is an important measure to prevent AFLD.IL-18 and IL-8 can reflect the severity of liver injury in AFLD and have important significance in judging prognosis.
Key words:
Alcoholic fatty liver disease; Abdominal fat area; Interleukin-18; Interleukin-8
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