Abstract
Traumatic brain injury is one of the major causes of morbidity and mortality worldwide. With the development of bile acids as a potential treatment, to identify the influence of traumatic brain injury on bile acid metabolism shows growing importance. This present study did a preliminary exploration of the bile acid profile alteration among traumatic brain injury patients. In total, 14 patients and 7 healthy volunteers were enrolled. The bile acid profile of the blood samples were detected by an Ultra-performance Liquid Chromatography Mass Spectrometer/Mass Spectrometer system. It was found that 6 bile acids were statistically decreased in traumatic brain injury patients comparing with healthy volunteers: glycocholic acid (median level 44.4 ng/ml vs 98.7 ng/ml, p = 0.003), taurocholic acid (median level 10.9 ng/ml vs 19.5 ng/ml, p = 0.006), glycoursodeoxycholic acid (median level 17.4 ng/ml vs 71.4 ng/ml, p = 0.001), ursodeoxycholic acid (median level <1 ng/ml vs 32.4 ng/ml, p = 0.002), taurochenodeoxycholic acid (median level <1 ng/ml vs 53.6 ng/ml, p = 0.003) and glycochenodeoxycholic acid (GCDCA, median level 160 ng/ml vs 364 ng/ml, p<0.001). In conclusion, traumatic brain injury events are able to induce bile acid metabolism alteration in plasma and might cause reduction in glycocholic, taurocholic, glycoursodeoxycholic, ursodeoxycholic, taurochenodeoxycholic and glycochenodeoxycholic acid levels.
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