I wouldn't let this study scare you away from dairy. Reassurance lies within the abstract:
This was associated with a pro-inflammatory T helper type 1 (T(H)1) immune response and increased incidence of colitis in genetically susceptible Il10(−/−), but not wild-type mice.The effect was only seen in the IL-10 deficient mice, so if you're IL-10 deficient I would probably caution against dairy fat. I'm not up on the other research, but don't worry about this study....might increase the prevalence of complex immune-mediated diseases like inflammatory bowel disease in genetically susceptible hosts.
And for information on what an Il-10(-/-) mouse actually is: JAX Mice Database - 002251 B6.129P2-Il10<tm1Cgn>/J