TABLE 2.
Relative RNA indices of total fecal bacterial RNA as measured with 16S probesa
| % of condensed tannin | Relative RNA indices
|
|||
|---|---|---|---|---|
| C. leptum group | Enteric bacteria | B. fragilis group | Bacteroides-Prevotella- Porphyromonas group | |
| Week 6 (treatment period) | ||||
| 0.0 | 23.12 (21.44-24.85) Ab | 0.36 (0.10-0.79) B | 8.08 (4.77-12.15) B | 27.05 (17.04-38.41) B |
| 0.7 | 0.20 (0.08-0.39) B | 4.27 (3.31-5.33) A | 25.06 (20.15-30.32) A | 61.67 (51.27-71.56) A |
| 2.0 | 0.00 (0.01-0.06) B | 6.91 (5.70-8.23) A | 42.11 (36.37-47.96) A | 85.56 (77.45-92.11) A |
| Week 8 (posttreatment) | ||||
| 0.0 | 35.15 (31.16-39.25) | 0.34 (0.06-0.83) | 2.45 (0.88-4.77) | 16.83 (12.75-21.35) |
| 0.7 | 26.85 (22.75-31.16) | 0.09 (0.01-0.45) | 7.58 (4.28-11.72) | 17.20 (12.62-22.32) |
| 2.0 | 24.40 (20.85-28.13) | 1.04 (0.47-1.83) | 4.93 (2.57-8.01) | 12.74 (9.15-16.82) |
| Week 10 (posttreatment) | ||||
| 0.0 | 18.57 (16.36-20.89) | 0.09 (0.03-0.19) | 0.67 (0.31-1.16) B | 9.17 (6.87-11.78) |
| 0.7 | 17.32 (14.92-19.85) | 0.16 (0.07-0.30) | 6.20 (4.87-7.68) A | 15.04 (11.81-18.59) |
| 2.0 | 23.34 (20.92-25.85) | 0.03 (0.00-0.10) | 4.93 (3.87-6.12) A | 15.05 (12.14-18.22) |
a
Fecal bacterial RNA was extracted from samples obtained from rats (n = 4) fed control (no tannin), low-tannin (0.7% tannin), and high-tannin (2% tannin) diets. Standard deviations of transformed data are indicated in parentheses.
b
Means followed by the same letter within columns and weeks are not significantly different (P ≥ 0.05).