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Distribution of COX-2-IR blood vessels in LPS-injected rats. Each symbol represents one blood vessel associated with one to several COX-2-IR cells. Results from three rats, which were killed 4 hr after LPS injection, were plotted on the same plane. The three different symbolsrepresent the result from each rat. COX-2-positive blood vessel was mainly observed the near lateral ventricles, third ventricle, and the cisterna chismatis. The outline of the section represents the pia mater.
