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The fall in enzyme activity may reflect oxidative modification of the enzymes themselves, which the authors state was still under investigation.","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"nutrient_topic","value_text":"Hyperbaric oxygen research collection; topical membership is not evidence of a direct clinical effect, and a therapeutic exposure is not a dietary intake.","comparator":null,"unit":null,"notes":"","entity":{"slug":"hyperbaric-oxygen","display_name":"Hyperbaric oxygen therapy","entity_type_key":"drug"}},{"dimension":"organism","value_text":"Human","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"plain_language","value_text":"Repeated treatment leaves measurable marks of oxidation in the blood.","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"primary_references","value_text":"[hbot-p15003734] Oxidative stress and antioxidant status in patients undergoing prolonged exposure to hyperbaric oxygen. 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The fall in enzyme activity may reflect oxidative modification of the enzymes themselves, which the authors state was still under investigation.\nexposure: Fifteen hyperbaric oxygen treatments without antioxidant supplementation\nevidence_span: {\"source_cache\": \"artifacts/hbot-research/15003734.abstract.txt\", \"locator\": \"Indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"5e4b6cef5c64b735c97ae362e7a90c76433e3f8fef2978d3b3b2a584016e506f\", \"start_char\": 0, \"end_char\": 1432, \"text_sha256\": \"5e4b6cef5c64b735c97ae362e7a90c76433e3f8fef2978d3b3b2a584016e506f\"}\n[hbot-p15003734] Oxidative stress and antioxidant status in patients undergoing prolonged exposure to hyperbaric oxygen. 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