نتایج جستجو برای: tyrosinase

تعداد نتایج: 3872  

Journal: :jundishapur journal of natural pharmaceutical products 0
foroogh namjoyan department of pharmacognosy, ahvaz jundishapur university of medical sciences, ahvaz, ir iran alireza jahangiri department of medicinal chemistry, ahvaz jundishapur university of medical sciences, ahvaz, ir iran mohammad ebrahim azemi department of pharmacognosy, ahvaz jundishapur university of medical sciences, ahvaz, ir iran elaheh arkian medicinal plant research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; medicinal plant research center, ahvaz jundishapur university of medical sciences, ahvaz, iran. tel: +98-9132803410 hamideh mousavi medicinal plant research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

conclusions all plants could inhibit mushroom tyrosinase, but more investigations on human tyrosinase and clinical studies are needed. results the hydroalcoholic extract of p. alkekengi showed the most tyrosinase inhibitory effect with ic50 of 0.09 mg/ml vs. 0.38, 0.38 and 2.82 mg/ml of b. persicum, a. rosea and m. vulgare, respectively. m. vulgare exhibited uncompetitive inhibition and other p...

Journal: :research in pharmaceutical sciences 0

tyrosinase is a multifunctional oxidase that is widely distributed in nature. it is a key enzyme in melanin biosynthesis and is involved in determining the color of mammalian skin and hair. in addition it is responsible for the undesirable enzymatic browning that occurs in plant-derived foods, limiting the shelf -life of fresh-cut products with the resultant economic loss.  in recent years ther...

Tyrosinase is a key enzyme in melanin production. Therefore, tyrosinase inhibitors are used in cosmetic and medicinal industries to prevent or treat overproduction of melanin such as melasma, solar lentigo and post inflammatory melanoderma. Due to safety of natural whitening agents, in the present study, in-vitro anti-tyrosinase and in-vivo anti-melanogenesis activities of some selected red mac...

Journal: :iranian journal of basic medical sciences 0
azizeh asadzadeh department of biology, science and research branch, islamic azad university, tehran, iran hajar sirous department of medicinal chemistry, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran morteza pourfarzam department of medicinal chemistry, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran parichehreh yaghmaei department of biology, science and research branch, islamic azad university, tehran, iran afshin fassihi department of biochemistry, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran

objective(s): tyrosinase is a key enzyme in pigment synthesis. overproduction of melanin in parts of the skin results in hyperpigmentation diseases. this enzyme is also responsible for the enzymatic browning in fruits and vegetables. thus, its inhibitors are of great importance in the medical, cosmetic and agricultural fields. materials and methods: a series of twelve kojic acid derivatives wer...

Tyrosinase is a key enzyme in melanin production. Therefore, tyrosinase inhibitors are used in cosmetic and medicinal industries to prevent or treat overproduction of melanin such as melasma, solar lentigo and post inflammatory melanoderma. Due to safety of natural whitening agents, in the present study, in-vitro anti-tyrosinase and in-vivo anti-melanogenesis activities of some selected red mac...

Journal: :acta medica iranica 0
zehtab t rafieii tehranie s yazdanparast r

tyrosinase has been recognized as a major autoantign in human vitiligo. here we have shown that experimental autoimmune vitiligo can be induced by intradermal injection of mushroom tyrosinase emulsified in complete freund’s adjuvant in c57bl/6 mice. the onse of vitiligo was characterized by hair hypopigmentation and total melanocyte depletion in the basal layer of the epidermis. our results con...

2015
Foroogh Namjoyan Alireza Jahangiri Mohammad Ebrahim Azemi Elaheh Arkian Hamideh Mousavi

BACKGROUND The key enzyme in the process of melanin biosynthesis is tyrosinase. Skin hyperpigmentation and browning of foods are undesirable phenomena which tyrosinase represents. Therefore, tyrosinase inhibitors have been used increasingly for medicinal and cosmetic products. OBJECTIVES In this study, inhibitory effects of four plants including: physalis alkekengi L., Alcea rosea L., Bunium ...

M. Saeedi R. Hariri* T. Akbarzadeh

Background and objectives: Tyrosinase is a copper containing oxidase which is crucial for controlling the production of melanin in creatures such as bacteria, fungi, plants and mammals. It is involved in the first two steps of melanin biosynthesis and leads to pigmentation and different types of cancer such as melanoma. Also, it is responsible for browning of fruits and vegetab...

Objective(s): Tyrosinase is a key enzyme in pigment synthesis. Overproduction of melanin in parts of the skin results in hyperpigmentation diseases. This enzyme is also responsible for the enzymatic browning in fruits and vegetables. Thus, its inhibitors are of great importance in the medical, cosmetic and agricultural fields. Materials and Methods: A series of twelve kojic acid derivatives wer...

Saeed Emami, Seyedeh Mahdieh Hashemi,

Tyrosinase is a key enzyme for melanin biosynthesis, catalyzing the oxidation of L-tyrosine to L-dopaquinone. The tyrosinase inhibition is an effective approach to control hyperpigmentation in human skin and enzymatic browning in fruits and vegetables. Kojic acid is a naturally-occurring tyrosinase inhibitor which has been clinically used to treat the hyperpigmentation of skin. However, kojic a...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید