Given an abstract of a paper, generate a title for this paper such that conveys the key focus of the paper.

Ex Input:
Abstract: Human and experimental colitis are associated with release of both vasoconstrictor and vasodilator eicosanoids. To determine the pattern of colonic blood flow in vivo and the role of prostaglandins and thromboxanes, immune complex-mediated colitis and delayed hypersensitivity-mediated colitis were induced in rabbits. Organ blood flow was determined in conscious animals by radiolabeled microspheres before and after cyclooxygenase or thromboxane synthetase inhibition. Colonic blood flow was twofold higher in colitis than in control animals. Thromboxane synthetase inhibition with dazoxiben caused a slight further increase of colon perfusion in animals with colitis, but thromboxane receptor blockade had no effect. Prostaglandin inhibition with indomethacin and ibuprofen did not affect blood flow in controls, but in animals with colitis these drugs markedly reduced colonic blood flow to the level of control animals. The data demonstrate that vasodilatory prostaglandins enhance colonic blood flow in acute colon inflammation.

Ex Output:
Prostaglandin regulation of colonic blood flow in rabbit colitis.

Ex Input:
Abstract: A previously healthy 3-year-old boy was referred because of persistent fever and anterior neck swelling and pain. The diagnosis of a mixed bacterial abscess of the thyroid gland was made. Incision and drainage were performed, and fever abated immediately. Antibiotic therapy was given in the hospital and for ten days after discharge. Acute suppurative thyroiditis is a rarely encountered infection. The majority of cases reported in the recent literature are from Japan. The case presented here, from the United States, demonstrates the difficulty that can be encountered in diagnosing this type of thyroiditis.

Ex Output:
Acute suppurative thyroiditis in a 3-year-old boy.

Ex Input:
Abstract: Colloidal gold solutions conjugated with staphylococcal protein A (SpA) are widely used in high-resolution immunocytochemical studies to visualize antibodies bound at antigenic sites. Here we report that colloidal gold solutions conjugated with SpA, bovine serum albumin (BSA), or gelatin bind selectively to structures in glutaraldehyde-fixed, plastic-embedded epidermis of rabbit, mouse, and human. Two types of keratohyaline granules are present in epidermis, a phosphorus-rich (PR) and a sulphur-rich (SR) type. The PR keratohyaline granules were strongly labeled with gold particles, whereas SR keratohyaline granules or other structures in the living cells of epidermis were unlabeled. The PR keratohyaline granules are assumed to be precursors of the matrix protein of cornified cells, and intense gold labeling occurred over the lower layer of cornified cells (i.e., stratum lucidum). More superficial cornified cells were weakly labeled or unlabeled. The gold labeling pattern was identical whether SpA, BSA, or gelatin was used to stabilize the colloidal gold solution. The mechanism of binding of protein-conjugated gold to PR keratohyaline granules and matrix protein of cornified cells is not clear. It is speculated that the charged gold particles are not completely coated by the stabilizing protein, allowing for an electrostatic interaction with charged proteins in sections of cells.

Ex Output:
Selective binding of colloidal gold-protein conjugates to epidermal phosphorus-rich keratohyaline granules and cornified cells.