TABLE 5.
Resorptions and implants in litters derived at E11.5 from Mthfd1gt/+ and Mthfd1+/+ dams fed a control diet or the FCDD1
Diet and maternal Mthfd1 genotype | No. of litters | No. of total implants | No. of implants per litter | No. of total resorptions | No. of resorptions per litter |
Control | |||||
+/+ | 10 | 34 | 3.4 ± 0.62 | 1 | 0.1 ± 0.1 |
gt/+ | 15 | 56 | 3.7 ± 0.6 | 7 | 0.8 ± 0.32 |
FCDD | |||||
+/+ | 16 | 74 | 4.4 ± 0.5 | 10 | 0.87 ± 0.23 |
gt/+ | 13 | 82 | 6.3 ± 0.7 | 10 | 1.3 ± 0.45 |
FCDD + 500 μmol hypoxanthine/L | |||||
gt/+ | 15 | 59 | 3.8 ± 0.5 | 17 | 1.06 ± 0.36 |
P-diet effect | — | — | 0.004 | — | 0.0454 |
P-genotype effect | — | — | 0.099 | — | 0.0760 |
P-diet × genotype effect | — | — | NS | — | NS |
The main effects of Mthfd1 genotype and diet and interactions of genotype and diet on implantation rates and log-transformed resorption rates were analyzed with the use of ANOVA. Post hoc comparisons were analyzed with the use of Student's t test with Bonferroni correction for multiple testing. Analysis of implants and resorptions for the FCDD + 500 μmol hypoxanthine/L group was completed separately by comparing Mthfd1gt/+ dams fed a control diet, an FCDD, or an FCDD + 500 μmol hypoxanthine/L with the use of ANOVA. The number of implants in the FCDD + 500 μmol hypoxanthine/L group was significantly different from that of the FCDD-alone groups (P < 0.01) but not from that of the control group (P > 0.05). E, embryonic day; FCDD, AIN93G diet deficient in folate and choline; gt, gene-trapped.
Mean ± SE (all such values).