BACKGROUND/OBJECTIVES Gastrodia elata Blume (GEB), a traditional herbal medicine, has been used to treat a wide range of neurological disorders (e.g., paralysis and stroke) and skin problems (e.g., atopic dermatitis and eczema) in oriental medicine. This study was designed to investigate whether GEB extract inhibits melanogenesis activity in murine B16F10 melanoma. MATERIALS/METHOD Murine B16...

statement of problem: physiologic pigmentation of oral mucosa is considered as a prevalent entity among black people and those having relatively dark skin. gingival physiologic pigmentation may cause problems for some patients specially ladies as far as esthetics is concerned. to overcome the issue, the surgery might be suggested which can cause some problems due to its side effects. cryotherap...

Vitiligo is one of the most well-known conditions of skin depigmentation. It is estimated to occur in up to 2% of the world’s population. A number of people, these patches can prove all over the body. It is an autoimmune disease in which the pigmentinducing cells are injured. There is no therapy for vitiligo, however there are few therapies, including ultraviolet light, cosmetic cover-ups or co...

BACKGROUND Magnolia grandiflora L. flower is wildly used in Asian as a traditional herbal medication. The purpose of the study was to investigate the antimelanogenic and antioxidant properties of Magnolia grandiflora L. flower extract. In the study, the inhibitory effects of M. grandiflora L. flower extract on mushroom tyrosinase, B16F10 intracellular tyrosinase activity and melanin content wer...

Background: Sulfur mustard gas is a chemical agent that has been used in many wars, especially in Iran-Iraq war. This chemical agent affects many organs including lungs, eyes and skin, causing numerous acute and chronic lesions including erythema and hyperpigmentation, respectively. This study was conducted to evaluate erythema and melanin in subjects with a history of exposure to sulfur ...

to characterize the distribution of melanin producing medicago-nodulating rhizobia in western and north-western of iran, 982 sinorhizobium isolates were trapped from a combination of three alfalfa populations (hamedani, nikshahri, kodi) and soil samples from eight sites across kurdestan, kermanshah, eastern azarbayjan and lorestan provinces. all rhizobial isolates were examined for their abilit...

A review is presented of the seven commonest types colour aberrations in birds together with suggestions for a standardised universal nomenclature to identify and distinguish these aberrations. These are: Leucism (congenital absence melanin-producing cells), Progressive Greying (progressive loss Albino (total melanin due lack key enzyme), Brown (incompletely coloured melanin), Ino (even less co...

background bacillus thuringiensis is the most successful biological control agent used in agriculture, forestry and mosquito control. however, the insecticidal activity of the b. thuringiensis formulation is not very stable and rapidly loses its biological activity under field conditions, due to the ultraviolet radiation in sunlight. melanin is known to absorb radiation therefore photo protecti...