Minion Pro in-line italics and use of punctuation punctuation

Hello,

I'm setting a one-page print document, in Minion Pro defining an organization's mission and vision. The last section lists the organization's core values. The subhead, "Our values" is in small caps, and below it, each value (one word) is italicized, followed by a brief description in roman. Is there any agreed-upon convention included or excluding punctuation (ie. period or colon), after the italicized word? I typically like  consulting the Bringhurst book, but didn't see anything there.

Example:

Excellence. We strive for relevance, innovation and diversity in programming, while recognizing people as basic forces of change and improvement.

or 

Excellence We strive for relevance, innovation and diversity in programming, while recognizing people as basic forces of change and improvement.

Thank you much.

Andrew