cranesbill (geranium species) are used traditionally as tonic, antidiabetic, antidiarrheal, antihemorrhoidal, diuretic and for the treatment of cough, fever, tonsillitis, urticaria, kidney pain and gastrointestinal ailments. the leaves of some geranium species are consumed in traditional turkish cousin as salad or added to pastry. in the present study, different extracts from g. psilostemon and...

a series of 2-amino-4-aryl-3-cyano-7-(dimethylamino)-4 h -chromenes was synthesized by condensation of 3-(dimethylamino)phenol, an aromatic aldehyde and malonitrile in ethanol containing piperidine. the assignments of the structure of all synthesized compounds were based on spectral data (ir, mass and 1 h nmr). the cytotoxic activities of the synthesized compounds against six human tumor cell l...

leukemia is a blood disease which is caused by the inhibition of differentiation and an increased proliferation rate. nature has been known as a rich source of medically useful substances. high diversity of bioactive molecules extracted from marine invertebrates, makes them ideal candidates for cancer researches. the study has been done to investigate cytotoxic effects of dichloromethane brittl...

background: considering their specific adaption to marine milieus, marine actinomycetes constitute an excellent source for producing unique bioactive substances. they are also important sources of antibiotics and extracellular enzymes, geosmin, and enzymes with potent antibacterial and anticarcinogenic properties and low toxicity. the objective of this study is to isolate actinomycetes producin...

background and objective: free radicals cause many diseases in human and their neutralizing by antioxidants reduces risk of cancers. salvia officinalis from lamiaceae family is one of the valuable plants in traditional medicine. the present study aimed to evaluate the antioxidative and cytotoxic properties of ethanolic extract of the aerial parts of this plant on human prostate and cervical can...

the present study investigates the antioxidant, anticancer, anticholinesterase, anti-genotoxic activities and phenolic contents of flower, fruit and seed methanol extracts of hypericum retusum aucher. the amounts of protocatechuic acid, catechin, caffeic acid and syringic acid in methanol extracts were determined by hplc. total phenolic content of h. retusum seed extract was found more than fru...

caffeic acid phenethyl ester(cape) suppresses the growth of transformed cells such as human breast cancer cells, hepatocarcinoma , myeloid leukemia, colorectal cancer cells, fibrosarcoma, glioma and melanoma. a group of heterocyclic esters of caffeic acid was synthesized using mitsunobu reaction and the esters were subjected to further structural modification by electrooxidation of the catechol...

cancer is a major cause of death worldwide and causes serious problems in human life. it is developed by uncontrolled growth of a cell or a group of cells. there are many difficulties in treatment of cancer and many researchers are involved in investigating for effective drugs to treat the disease. caryophyllaceae is a large family of about 86 genera and 2200 herbaceous or subshrub species. the...

the present study was intended to standardize the protocol for the synthesis of silver nanoparticles (agnps) using aqueous extract of dictyota bartayresiana j.v. lamouroux and evaluate cytotoxic potentials using brine shrimp bio-assay activity and trypan blue dye exclusion method. the reduction of pure ag+ ions was monitored by measuring the uv-vis spectrum of the solution at 200-900 nm and the...