Interventions have been effective in motivating adolescents to engage in safer sex, but most interventions fail to effect change at the behavioral level (Kirby, 2002; Vanwesenbeeck et al., 2003).
MMP inhibitors have been tested clinically but failed to have effect on tumour metastasis [ 4], probably due to the plasticity of tumour cells and their ability to invade in an amoeboid manner in the absence of protease activity [ 5].
Rimonabant completely reversed the antinociceptive effect of WIN 55,212-2 as expected, but failed to inhibit the effect of MECM (Fig. 5b).
Recently, Fuchs and colleagues reported Rep1's effect on SNCA protein levels in human blood, but failed to detect an effect in brain samples (N control subject = 24) [31].
These case control studies, conducted in 18 southern municipalities in Sweden, found a protective effect of magnesium against acute myocardial infarction mortality but failed to find this effect for the total incidence in men.
Gerdtham and Johansson (23) found, as expected, a clear effect of absolute income on all causes of mortality in Swedish municipalities but failed to find any effect of either mean community income (relative income) or income inequality.
Several rounds of chemotherapy shrank ten tiny tumors in her brain but failed to have any effect on several more tumors in her remaining lung.
Tactile stimulation significantly altered rat behaviour on the novel object recognition task and Whishaw tray reaching task, but failed to have an effect on behaviour in the elevated plus maze or activity box.
Rain last week dampened parts of California but failed to have an effect on the drought, according to the U.S. Drought Monitor.
In separate experiments, we looked for, but failed to find, an effect of texture by using smooth and rough wooden dowels to serve as twigs for caterpillars fed only on crab-apple.
