Chemotherapy-induced gastrointestinal dysfunction: Mechanisms and integrative Western-Chinese medicine strategies.

Chemotherapy often causes severe digestive problems including nausea, vomiting, diarrhea, and abdominal pain that can force patients to reduce or stop treatment. This comprehensive review examined why chemotherapy damages the digestive system and explored how combining Western medicine with acupuncture and Chinese herbal medicine might help. Researchers found that chemotherapy doesn't just directly damage the gut lining—it triggers a cascade of interconnected problems. These include oxidative stress (harmful molecules that damage cells), disruption of the protective gut barrier, imbalance in healthy gut bacteria, immune system overreaction, and changes to the nerves controlling digestion. The review explains that current treatments mostly focus on managing symptoms rather than addressing these underlying causes. The authors propose a new framework called "niche medicine" that targets the root biological mechanisms driving digestive dysfunction. This approach would combine standard supportive care with evidence-based acupuncture and Chinese herbal formulas as testable treatment modules. The framework also emphasizes personalizing treatment based on each patient's genetics, drug metabolism, and gut bacteria profile. Rather than just relieving symptoms temporarily, this integrated strategy aims to help the digestive system actually heal and recover during chemotherapy. The authors suggest that acupuncture and herbal medicine may work by interrupting harmful cycles of inflammation, supporting the gut barrier, and rebalancing the microbiome and nervous system. While more clinical trials are needed, this review provides a scientific rationale for using integrative approaches alongside conventional care. Patients interested in acupuncture for chemotherapy side effects should seek a licensed acupuncturist with experience in oncology supportive care.

This mechanistic review synthesizes current evidence on chemotherapy-induced gastrointestinal dysfunction (CIGD), identifying five interconnected pathological modules: oxidative stress, mucosal barrier disruption, gut microbiota dysbiosis, immune dysregulation, and enteric nervous system remodeling. No original clinical trial data or sample sizes are reported; this is a conceptual framework paper. The authors propose a "niche medicine" translational model positioning acupuncture and Chinese herbal formulae as parameterizable adjunctive interventions that may modulate microbiota-immune interactions and neuroimmune pathways. The framework advocates mechanism-informed stratification based on pharmacogenetics, metabolic profiling, and microbiome features rather than symptom-only management. Clinical takeaway: CIGD should be understood as ecosystem-level dysregulation requiring multimodal intervention. Acupuncture and herbal medicine warrant systematic investigation as mechanistically rational adjuncts targeting oxidative injury, barrier function, microbial metabolite toxicity, and ENS-immune crosstalk within integrated oncology supportive care protocols.