dermatophilosis is a bacterial skin infection and wet conditions like, raining and dipping predispose sheep to it. a great economic loss can be caused by this disease because of its effect on the quality of wool. in iran (near saveh), there was an outbreak of the disease in a herd and the clinical manifestation was different from that of typical dermatophilosis. diffuse wide alopecic area accom...

Background: Langerhans cells are important in the pathogenesis of leprosy.  A recent study reported that these cells were almost absent in the epidermis overlying lepromatous lesions. Objective: To investigate a possible relationship between the number of Langerhans cells and the histopathologic spectrum of lesions in patients with leprosy. Methods: An immunohistochemical staining for S100 prot...

In order to elucidate a part of calmodulin actions in the hyperproliferative state in human epidermis, calmodulin activities in the psoriatic and in the normal human epidermis were determined using calmodulin-deficient phosphodiesterase from bovine heart and purified pig skin epidermal calmodulin as a standard. Skin samples were obtained from 11 normal healthy controls and from both the uninvol...

CONTEXT Recent progress in the field of epithelial culture techniques has allowed the development of culture systems in which the reconstructed epidermis presents characteristics of morphological differentiation similar to those seen in vivo. Human epidermis reconstructed in vitro may be used as the best alternative for the in vitro testing of the toxicology and efficiency of products for topic...

The dermal side of the chick embryonic skin was observed by scanning electron microscopy (SEM) after the removal of dermal components. Epidermis free of dermis was prepared as follows: Tissues were fixed, hydrolyzed with hydrochloric acid (HC1), digested with collagenase or trypsin, and processed for SEM observation. The epidermis from the anterior tarsometatarsus and the foot pad was examined....

The lipide composition of epidermis and dermis under the influence of the hair growth cycle and following the topical application of methylcholanthrene was inves tigated. The percentage of cholesterol and phospholipide was lowest in anagen and telogen epidermis, was nearly doubled in early and late hyperplastic epidermis, and rose to even higher values in squamous-cell carcinomas. The cholester...