这个词是什么意思？
Steroid acids and salts. The primary bile acids are derived from cholesterol in the liver and usually conjugated with glycine or taurine. The secondary bile acids are further modified by bacteria in the intestine. They play an important role in the digestion and absorption of fat. They have also been used pharmacologically, especially in the treatment of gallstones.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D001647 · MeSH 2026。
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