Coumarins/metabolism; Ellagic Acid/metabolism; Fruit; Glucuronides/metabolism; Juglans; Lythraceae; Prostate/metabolism; Prostatic Neoplasms/metabolism; Aged; Animals; Beverages/analysis; Biomarkers, Tumor/metabolism; Coumarins/administration & dosage; Coumarins/chemistry; Coumarins/urine; Cyclin-Dependent Kinase Inhibitor p21/genetics; Cyclin-Dependent Kinase Inhibitor p21/metabolism; Ellagic Acid/chemistry; Ellagic Acid/urine; Fruit/chemistry; Gene Expression Regulation, Neoplastic; Glucuronides/administration & dosage; Glucuronides/chemistry; Glucuronides/urine; Humans; Hydrolyzable Tannins/administration & dosage; Hydrolyzable Tannins/chemistry; Hydrolyzable Tannins/metabolism; Intestines/microbiology; Intracellular Signaling Peptides and Proteins/genetics; Intracellular Signaling Peptides and Proteins/metabolism; Juglans/chemistry; Lythraceae/chemistry; Male; Middle Aged; Nuclear Proteins/genetics; Nuclear Proteins/metabolism; Plant Extracts/administration & dosage; Plant Extracts/chemistry; Prostatic Hyperplasia/metabolism; Prostatic Hyperplasia/surgery; Prostatic Hyperplasia/urine; Prostatic Neoplasms/prevention & control; Prostatic Neoplasms/surgery; Prostatic Neoplasms/urine; Proto-Oncogene Proteins c-myc/genetics; Proto-Oncogene Proteins c-myc/metabolism; RNA, Messenger/metabolism; Rats; Rats, Sprague-Dawley