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This is a narrative review synthesizing mechanistic evidence and pathophysiological theory about glucose metabolism in osteoporosis, proposing insulin signaling as a therapeutic target without reporting clinical trial data or direct evidence of efficacy.
Preclinical syngeneic mouse model study with mechanistic in vitro work showing metformin + radiotherapy prolongs survival and reduces tumor burden through immune reprogramming, but lacks human data and hard clinical endpoints.
A real result from a sound but limited retrospective study using machine learning on electronic health records; the model shows good discriminative performance (AUC 0.790) but lacks prospective validation and independent external testing.
Small single-centre uncontrolled study of novel biomarkers in breast cancer patients; exploratory design with negative primary findings for most novel markers, requiring larger validation studies.
Single-center observational study with cross-sectional design measuring serum biomarker associations in women; establishes correlation with metabolic risk factors but lacks prospective outcome data, control groups, or mechanistic validation to support clinical decision-making.