biotransformation of benzo[a]pyrene (bap) in the presence of microsomal fractions derived from liver and epiderm of adult and weanling rats was examined. the aim of this study was to evaluate the effect of age on the capacity of two organs in transformation of bap. subcellular fractions were prepared from skin and liver by ultracentrifugation and were used as the source of bap metabolizing enzy...

results migration of cells started on the fifth day. as a result of this migration, most cells were located on the surface of the scaffold and formed epiderm-like structure and some penetrated into the scaffold. by day 25, cells which had penetrated into the scaffold had various destinies such as becoming elongated spindle-shaped cells and creating blood vessel-like structures. conclusions adm ...

KFGS (Keratinocyte fibrin glue suspension) and FKFGS (Fibroblast keratinocyte fibrin glue suspension) methods were performed in this study. Materials and Methods: Four healthy adult horses were used in this study (350 ± 117). Fibroblast cells have been separated by explant culture method from neck, keratinocyte cells have been separated by enzyme digestion from lib skin samples and Fibrinogen h...

background: keratocystic odontogenic tumor (kcot) is a developmental odontogenic cyst on which various investigations have been focused due to its biological activities, high tendency to recur and different growth mechanisms in comparison with other cystic lesions. previous studies have shown different biological and proliferative activities for the lining epithelium of kcot. the aim of this st...

As occupational medicine has become more established, the awareness of health problems, either caused or exacerbated by exposures in the workplace, has increased. As a group of disorders, occupational skin disease is certainly very common. The OPRA reporting scheme from 1996 to 1999 showed that work-related dermatological problems accounted for 20% of reports, just overtaken by mental ill-healt...

The aim of the present study was to establish an immunofluorescence method of antibody detection to identify melanocytes in the serum of vitiligo patients. Furthermore, we aimed to establish a method for the culture and proliferation of autologous pure melanocytes and to observe the effect of their transplantation for the treatment of vitiligo. Suspension of epidermal cells with melanocytes was...

The ECVAM-funded skin irritation validation study (SIVS) was initiated in 2003, with the aim to evaluate whether the EpiDerm, EPISKIN and the SIFT alternative methods were able to reliably identify skin irritant and non-irritant chemicals, and could therefore be candidates for replacing the rabbit Draize test for skin irritation. The primary goal of the study was to evaluate the predictive capa...

Retinaldehyde (retinal) has been identified as having superior topical activity, unrivaled topical bioavailability, and is less irritating than most other vitamin A derivatives. However, it has not received its deserved market attention possibly due to formulation-related issues. A novel compound, Retinaldehyde γ-Cyclodextrin Complex (RCC), has been developed to address the principal issues pre...

In this work, we describe the isolation of a new cDNA encoding an NADP-dependent isocitrate dehydrogenase (ICDH). The nucleotide sequence in its 5* region gives a deduced amino acid sequence indicative of a targeting peptide. However, even if this cDNA clearly encodes a noncytosolic ICDH, it is not possible to say from the targeting peptide sequence to which subcellular compartment the protein ...