Experiment 387944
Worktypes
Details
| Property | Value |
|---|---|
| Pharmacology | |
| Administration route | ORAL |
| Organism | Camellia sinensis (THEACEAE) |
| Citation | NAKACHI,K: SUEMASU,K: SUGA,K: TAKEO,T: IMAI,K: HIGASHI,Y:. (1998). INFLUENCE OF DRINKING GREEN TEA ON BREAST CANCER MALIGNANCY AMONG JAPANESE PATIENTS.. 89(3) |
| Amount utilized | |
| Compound isolated | |
| Disease | THIS STUDY EXAMINED THE ASSOCIATION BETWEEN CONSUMPTION OF GREEN TEA PRIOR TO CLINICAL CANCER ONSET AND VARIOUS CLINICAL PARAMETERS ASSESED AT SURGERY AMONG 472 PATIENTS WITH STAGE I, II, AND III BREAST CANCER.THE RESULTS FOUND THAT INCREASED CONSUMPTION OF GREEN TEA WAS CLOSELY ASSOCIATED WITH DECREASED NUMBERS OF AXILLARY LYMPH NODE METASTASES AMONG PREMENOPAUSAL PATIENTS WITH STAGE I AND II BREAST CANCER AND WITH INCREASED EXPRESSION OF PROGESTERONE RECEPTOR (PGR) AND ESTROGEN RECEPTOR (ER) AMONG POSTMENOPAUSAL ONES. IN A FOLLOW-UP STUDY OF THESE PATIENTS, IT WAS FOUND THAT INCREASED CONSUMPTION OF GREEN TEA WAS CORRELATED WITH DECREASED RECURRENCE OF STAGE I AND II BREAST CANCER (P<0.05 FOR CRUDE DISEASE-FREE SURVIVAL): THE RECURRENCE RATE WAS 16.7 OR 24.3% AMONG THOSE CONSUMING >5 CUPS PER DAY, RESPECTIVELY, IN A SEVEN-YEAR FOLLOW-UP OF STAGE I AND II BREAST CANCER, AND THE RELATIVE RISK OF RECURRENCE WAS 0.564(95% CONFIDENCE INTERVAL, 0.350-0.911) AFTER ADJUSTMENT FOR OTHER LIFESTYLE FACTORS. HOWEVER, NO IMPROVEMENT IN PROGNOSIS WAS OBSERVED IN STAGE III BREAST CANCER. THE RESULTS INDICATE THAT INCREASED CONSUMPTION OF GREEN TEA PRIOR TO CLINICAL CANCER ONSET IS SIGNIFICANTLY ASSOCIATED WITH IMPROVED PROGNOSIS OF STAGE I AND II BREAST CANCER, AND THIS ASSICIATION MAY BE RELATED TO A MODIFYING EFFECT OF GREEN TEA ON THE CLINICAL CHARACTERISTICS OF THE CANCER. |
| Dose amount | 1.92 L |
| Number | 1 |
| Qualitative result | ACTIVE |
| Animal | HUMAN ADULT |
| Per unit | DAY |
| Dose expression | DOSE |
| Extract | INFUSION |
| Gender | FEMALE |