نتایج جستجو برای: dermis
تعداد نتایج: 5966 فیلتر نتایج به سال:
Proamnionic epithelium of the chick embryo cultivated directly on Wolff and Haffen's medium in the absence of mesenchymes fails to differentiate. Cultivation of the dorsal dermis of 6-5-day chick embryos in the absence of epithelium also results in lack of differentiation of dermal cells. When proamnionic epithelium taken from embryos before the 10-somite stage is cultivated combined with dorsa...
Experiments are described which provide a direct measure of the adhesion between dermis and epidermis during the development of feather primordia in chick dorsal skin in culture. The epidermis was peeled from the dermis and the surfaces so exposed were examined under the scanning electron microscope: regions of strong adhesion between the tissues were revealed as areas where their separation wa...
The purpose of this study was to evaluate artificial dermis with the simultaneous addition of autologous epithelial cells for oral lesion defect reconstruction. Surgical wounds reconstructed with artificial dermis plus scraped epithelial cells were evaluated in 5 patients with oral benign lesions or squamous cell carcinoma. Clinical follow-up indices included scar formation and tissue surface t...
The stiffness of holothurian dermis can be altered experimentally in vitro by changing the concentration of extracellular Ca(2+). Previous experiments with Cucumaria frondosa have established that these Ca(2+) effects are due to Ca(2+)-dependent cellular processes rather than to direct effects of Ca(2+) on the extracellular matrix. The present report describes two protein factors that are relea...
nodules that reside within the dermis and frequently demonstrate epidermal attachment. Multifocal lobules of varying size and shape exhibit peripheral palisading and central haphazard array of cells.The entire tumor demonstrates an expansile growth pattern. Cystic degeneration or central necrosis may be prominent. Although similar to the nodular variant, micronodular basal cell carcinoma is com...
OBJECTIVES/HYPOTHESIS To evaluate the effectiveness of free fat grafting in preventing Frey's syndrome (FS) and facial depression after parotidectomy compared with acellular dermis. METHODS A prospective randomized trial was performed. Patients who underwent parotidectomy were randomly assigned to abdominal free fat or acellular dermis grafting groups. The occurrence of FS, the aesthetic outc...
We studied proline-rich divergent homeobox gene Hex/Prh expression in the dorsal skin of chick embryo during feather bud development. Hex mRNA expression was first observed in the dorsolateral ectoderm and mesenchyme at 5 days, then in the epithelium and the dermis of the dorsal skin before placode (primordium of feather bud) formation and then was restricted to the placode and the dermis under...
Hair follicles are surrounded by the dermis, but cells part of epidermis and separated from dermis basal lamina layer. The main aim study is to design evaluation versatile Herbal Oil prevent control hair-related problems. objectives Provides hair conditioning, Prevention & fall, Reduce scalp irritation, Prevents premature greying hair, Treats Dandruff, Relieves all types headaches especiall...
Lasers have been used in a variety of industries, but we will concentrate on their use medicine, specifically dermatology. I concentrated three types lasers this article (ablation, non-ablative lasers, and fractional lasers). The laser causes skin contraction as result wound stimulation collagen during the healing phase dermis, upper thermal ablation. Laser ablation is more dangerous because it...
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