Epigenetic inheritance, can epigenetic states be passed from one generation to the next?

As we have seen from the roundworm example, epigenetic effects (in this case extended lifespan) can sometimes be passed from one generation to the next, although the effects only seem to last for a few generations. Are there examples where epigenetic effects carry over to subsequent generations in humans or other mammals? There is some evidence that the effects of the Dutch Hunger Winter affected grandchildren of women who were pregnant during the famine. Similarly, in a study of a 19th century northern Swedish population who underwent cycles of famine and plenty, the amount of food available appears to have affected the health and longevity of the next generation.