Stephen A Estes

Learn More
Sarcoptes scabiei var. canis was successfully transferred from the dog to New Zealand White Rabbits, Oryctologus cuniculus. Natural and experimental transfers were accomplished between rabbits. The dog strain transferred to rabbits showed no morphologic changes and was readily transferred back to dogs. Experimental transfer of var. canis to guinea pigs and(More)
Scabies epidemics in nursing homes, acute and chronic care hospitals, residential facilities, and communities have become commonplace. Patients with keratotic (crusted, Norwegian) scabies are highly contagious and often initiate outbreaks in institutions. This is a review of problems associated with the management of scabies epidemics in health care(More)
Sarcoptes scabiei var. canis served as a suitable model for the study of S. scabiei var. hominis survival. S. scabiei var. canis and var. hominis mites were found to survive off the host for 24 to 36 hours at room conditions (21 degrees C and 40% to 80% relative humidity [RH]), and the canine variety survived 19 days at 10 degrees C and 97% RH. Female mites(More)
The scabies mite Sarcoptes scabiei and the Dermatophagoides house dust mites (HDM) are related phylogenetically and are the sources of several cross-reactive antigens. The purpose of this study was to investigate the immune response to S. scabiei and HDM in scabietic patients. Skin test sensitivity and serum IgE to both S. scabiei and HDM were determined(More)
We report here a case study in which behavior therapy techniques were used to treat the persistent and severe scratching of a patient with long-standing exfoliative dermatitis. A multiple-baseline clinical design across different body areas was used to evaluate the behavioral treatment program. This program consisted of (1) training the patient to monitor(More)
Porokeratosis plantaris, palmaris, et disseminata is a unique clinical entity characterized by the familial occurrence of multiple porokeratoses predominantly on the palms and soles but also on both sun-exposed and non-sun-exposed areas of the body. Since its original description in 1971 by Guss and colleagues, there has been only one other report of this(More)
Nitric oxide (NO) is an unconventional membrane-permeable messenger molecule that has been shown to play various roles in the nervous system. How NO modulates ion channels to affect neuronal functions is not well understood. In gastropods, NO has been implicated in regulating the feeding motor program. The buccal motoneuron, B19, of the freshwater pond(More)
Serum from seven patients with ordinary scabies and six with crusted scabies were screened by immunoblotting for IgE- and IgG-specific proteins in an extract of the mite, Sarcoptes scabiei variety canis. Sera from atopic individuals without sensitivity to house dust mites were used as controls. Serum from all of the patients with crusted scabies showed(More)