Osteoma cutis as a sequela to facial acne: a case report.

Secondary osteoma cutis of the face represents a late, rare, and often unrecognized complication of chronic inflammatory acne. We present the case of a 48-year-old woman with chronic inflammatory acne followed by osteoma cutis formation. The nodules were successfully removed by simple surgical excision.

Direct quantification of gene expression using capillary electrophoresis with laser-induced fluorescence.

Quantification of gene expression provides valuable information regarding the response of cells or tissue to stimuli and often is accomplished by monitoring the level of messenger RNA (mRNA) being transcribed for a particular protein. Although numerous methods are commonly used to monitor gene expression, including Northern blotting, real-time polymerase chain reaction, and RNase protection assay, each method has its own drawbacks and limitations. Capillary electrophoresis with laser-induced fluorescence (CE-LIF) can reduce protocol time, eliminate the need for radioactivity, and provide superior sensitivity and dynamic range for quantification of RNA.