Figure Legend: Figure 1 Kidney, Papilla Necrosis in a male F344/N rat from a chronic study. Early necrosis of the papilla shows loss of cellular detail and staining affinity. Figure 2 Kidney, Papilla Necrosis in a male F344/N rat from a subchronic study. A portion of the necrotic renal papilla is sloughed off into the renal pelvis. Figure 3 Kidney, Papilla Necrosis in a female B6C3F1 mouse from...

Angiodysplasia is characterized by degenerative vascu-lar dilation of the capillary net in the absence of dysplas-tic tissue. On endoscopy, flat or slightly elevated, reddish, roundish or starry lesions are observed, measuring normally between 2 and 10 mm. Angiodysplasia is a frequent cause of unexplained upper gastrointestinal bleeding with significant morbidity. 1 It often occurs in the gastr...

PURPOSE The purposes of this study are to determine if there is a difference in the papilla fill between implant and teeth comparing immediate provisionalized and delayed single tooth implant restorations, and to determine the relationships between the vertical and horizontal bone levels to papilla filling the inter-dental region with single implant restorations. PATIENTS AND METHODS Two grou...

The aim of this research was to study the proliferative response of junctional epithelium (JE) and gingival connective tissue (GCT) to mechanical stimulation in vivo with regard to the potential occurrence of apical migration of JE and loss of GCT attachment during orthodontic tooth movement. Elastic bands were inserted between the maxillary first and second molars of male rats aged 8 weeks, wh...