DNA Changes That Affect Vitamin D Metabolism in Patients With Colorectal Cancer Receiving Vitamin D Supplements

Conditions

• Colorectal Cancer

Interventions

• DIETARY_SUPPLEMENT: cholecalciferol
• GENETIC: polymerase chain reaction
• GENETIC: polymorphism analysis
• GENETIC: protein expression analysis
• GENETIC: reverse transcriptase-polymerase chain reaction
• GENETIC: western blotting
• OTHER: high performance liquid chromatography
• OTHER: laboratory biomarker analysis
• OTHER: pharmacological study
• PROCEDURE: adjuvant therapy
• PROCEDURE: immunoscintigraphy

Sponsor

Roswell Park Cancer Institute