Amyloid deposition is frequently observed in skin lesions of hypertrophic lupus erythematosus.

Four cases of Hypertrophic Lupus Erythematosus (HLE) were reported. The lesions of HLE were observed on the forearms, face and hands in all four cases. Clinically, the lesions were erythematous, hyperkeratotic plaques.

An assessment of the malignant potential of actinic keratoses and Bowen's disease: p53 and PCNA expression pattern correlate with the number of desmosomes.

Actinic keratoses (AK) and Bowen's disease (BD), both intraepidermal skin tumors, have a potential progression to squamous cell carcinoma (SCC). To evaluate the malignant potential of AK and BD, the expression pattern of p53 protein and proliferating cell nuclear antigen (PCNA) were examined in five types of AK and BD by immunohistochemistry. The ultrastructural difference of epidermal cells between AK and BD lesions was investigated.

Inhibition of intracellular proliferation of Leishmania parasites in vitro and suppression of skin lesion development in BALB/c mice by a novel lipid A analog (ONO-4007).

A synthetic lipid A analog (ONO-4007) exhibits antileishmanial activity by activating Leishmania-infected macrophages in experimental leishmaniasis. In the present in vitro study, ONO-4007 at concentrations between 0.01 and 1.

Low-dose UVB contributes to host resistance against Leishmania amazonensis infection in mice through induction of gamma interferon and tumor necrosis factor alpha cytokines.

UV radiation suppresses the immune response, a fact which raises the question of whether the phenomenon may find practical applications in the outcome of infectious diseases. In this study, BALB/c mice were exposed to low-dose UVB (250 J/m(2)) from Dermaray M-DMR-100 for 4 consecutive days. Twelve hours after the last UV exposure, groups of mice were injected with 2 x 10(6) Leishmania amazonensis promastigotes.