in this study, methanol and ether extracts of five endemic asperula species (rubiaceae) from turkey (a. antalyensis, a. brevifolia, a. pseudochlorantha, a. purpurea subsp. apiculata and a. serotina), used in the traditional system of medicine, were tested for antimicrobial activity by the agar well diffusion method and the broth dilution method. the most active species were asperula brevifolia ...

background: dermatophytes are the main cause of human superficial mycosis that is still a public health problem especially in tropical countries such as iran. objective: the aim of this study was determining the antifungal effect of hypercom perforatum essential oil. methods: the minimum inhibitory concentration (mic) and minimum fungicidal concentration (mfc) for the essential oil of the plant...

background tyrosinase is a copper-containing enzyme, which is widely distributed in microorganisms, animals and plants. it is also a key enzyme in melanin biosynthesis, which plays a crucial role in determining the color of mammalian skin and hair. in addition, unfavorable enzymatic browning of plant-derived foods by tyrosinase causes a decrease in nutritional quality and economic loss of food ...

the quantitative structure–activity relationship of a series of novel thiazoline derivatives with anticancer activity has been studied by using the density functional theory by b3lyp/ 6-31g. descriptors of quantum mechanics of 21 thiazoline derivatives with known activity were obtained. multiple linear regressions were employed to model the relationships between molecular descriptors and biolog...

a simple, inexpensive and one-step synthesis route of ag-tio2 nanoparticles by arc discharge method isreported. the resulting nanoparticles were characterized using x-ray diffraction and scanning electronmicroscopy. x-ray diffraction patterns demonstrate dominance of rutile to anatase phase in tio2 andformation of silver metal on tio2 after arc discharge process. scanning electron microscopy im...

methanolic and aqueous extracts of dendrophthoe falcata linn. leaves which belongs to the loranthaceae family, were evaluated through dpph (1, 1-diphenyl -2-picryl-hydrazyl), antilipid peroxidation and nitric oxide scavenging methods to assess the antioxidant activity. methanolic and aqueous extracts of dendrophthoe falcata leaves were also evaluated for their anti-inflammatory activity by carr...

paris polyphylla smith var. yunnanensis, has been used in traditional chinese medicine for its antibiotic and anti-inflammatory properties; in addition it has been used to cure liver cancer in particular. in this current study, β-ecdysterone (1) and three pennogenin steroidal saponins (2-4) were isolated from the etoh extract of paris polyphylla var. yunnanensis, and then tested for their antit...

leptadenia reticulata was reported to be used for several medicinal purposes. the present study was undertaken to evaluate anti-inflammatory, analgesic and lipid peroxidation inhibition activities of l. reticulata. the anti-inflammatory assay was performed by λ-carrageenan and formalin induced paw edema test. pro inflammatory mediators (il2, il6, tnf-α) in serum of treated and control organism ...

ba ckground: although it is widely accepted that the pre-school age is a critical period  in  the  development of  obesity,  there  are  few  published data  on  factors contributing to variation of total energy expenditure in this age group.to investigate the contribution of body composition, gender and activity on total energy expenditure (tee) in pre-school children. m ethods: the total ener...