Cytotoxic / Neuroprotective Bile Acids (Ratio)
This ratio shows the balance between more cytotoxic bile acids (for example, lithocholic and deoxycholic acid) and protective bile acids like ursodeoxycholic acid (UDCA). A higher ratio could indicate increased oxidative or inflammatory stress in the liver or gut environment. A lower ratio, with greater levels of neuroprotective bile acids, suggests better bile acid balance and reduced cellular stress. Balanced values support optimal liver detoxification and metabolic resilience.
Description
This ratio reflects the balance between potentially harmful (cytotoxic) bile acids—such as lithocholic and deoxycholic acid—and protective bile acids like ursodeoxycholic acid (UDCA). It offers insight into oxidative, inflammatory, and metabolic stress impacting the liver–gut axis.
A higher ratio may suggest increased oxidative or inflammatory stress, impaired bile acid detoxification, or a decreased conversion of toxic bile acids into protective types. It can also indicate a microbial imbalance or excessive bile acid production.
A lower ratio typically indicates better protection of the hepatobiliary system, effective recycling of bile acids, and decreased cellular stress. This may be observed when UDCA levels are adequate to counterbalance cytotoxic bile acids.
Supporting liver detoxification, maintaining gut microbial balance, and ensuring adequate antioxidant intake can help regulate this ratio. Nutrients such as taurine, glycine, and phosphatidylcholine, along with a balanced diet and proper hydration, support bile acid homeostasis and metabolic resilience.
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