Objective: Tyrosinase as the key enzyme in melanin biosynthesis, involves in determining the color of mammalian skin and hair. A variety of dermatological disorders, come up from an unnecessary level of epidermal pigmentation. Plants are low-cost and rich sources of active compounds.  Methods: More than seventy native plants collected from the central region of Kurdistan province collected. Inh...

BACKGROUND The androgen comprises a group of hormones that play roles in male reproductive activity as well as personal characteristics. OBJECTIVE We investigated the androgenic activity of various herbal medicines in human prostate cancer 22Rv1 cells. MATERIALS AND METHODS Herbal extracts of Trichosanthes kirilowii (TK), Asarum sieboldii (AS), Sanguisorba officinalis (SO), and Xanthium str...

Sanguisorba officinalis L., the dried roots of which are referred to as cucumber herb is a perennial belonging family Rosaceae. This study was showed correlation between antioxidant activity and its anti-wrinkle effects ethanol extraction concentration S. L. The yield extracts all 10% or more, judged be economical. 80% highest in total polyphenol flavonoid contents best activity. 0.830 0.872, r...

objective diabetes mellitus is manifested by hyperglycaemia. different treatments such as diets and drugs are recommended for diabetes control. for various reasons in recent years traditional plant (herbal) therapies as prescribed by indigenous systems of medicine with different mechanisms have commonly been used. the digestive enzymes such as alpha glucosidase are among these herbal remedies. ...

recognition of rangeland species with the maximum efficiency and the minimum water usage is very important, since major parts of rangelands in iran are located in arid and semiarid climate. in addition, the rangeland improvement and management on the basis of transpiration rate of rangeland species in different climatic conditions has great importance. the goal of this research is comparison an...