Plants are excellent source of natural antioxidants which have beneficial effect on health. The present study was designed to assess the antioxidant and reactive oxygen species (ROS) scavenging activities of 70% methanolic extract of Clerodendrum viscosum. The extracts were examined for the scavenging activity of hydroxyl radical, nitric oxide, singlet oxygen, hypochlorous acid, superoxide, per...

Cassia singueana (Delile) Lock from the family Fabaceae is a well-known medicinal plant that grows abundantly in Nigeria and other African countries, and has long been used in the treatment of various ailments including malaria and other infectious diseases. The present study aimed at  assessing the composition, and bioactivity of the essential oil of the flowers of C. singueana collected from ...

thalassemia is the most prevalent genetic disorder in iran and around the world and these patients need regular careful care. the present study reports results of routine examination of patients visited thalassemia clinic of tehran. data about clinical and laboratory examinations of 413 thalassemic were extracted and analyzed. the prevalence of heart complications, diabetes, growth retardation,...

Insertion of Mg2+ into protoporphyrin IX catalysed by the three-subunit enzyme magnesium-protoporphyrin IX chelatase (Mg chelatase) is thought to be a two-step reaction, consisting of activation followed by Mg2+ chelation. The activation step requires ATP and two of the subunits, ChlI and ChlD (I and D respectively), and it has been speculated that this step results in the formation of an I-D-A...

Objective: Terminalia arjuna is commonly known as Arjuna and widely used as cardioprotective agent in Indian traditional medicine. The present study was undertaken to evaluate the protective effect of ethanolic extract of T. arjuna bark (TAA) and its fractions, including dichloromethane (TAD), ethyl acetate (TAE), butanol (TAB) and water (TAW) against free radicals, protein oxidation and DNA da...

Sodium pyrithione and zinc pyrithione (NaPT and ZnPT, respectively) are widely used as cosmetic preservatives and metal chelating agents. They are commonly assayed using thin layer chromatography (TLC) and high performance liquid chromatography (HPLC). However, a simple quantitative colorimetric assay has not been previously reported for these compounds. This paper describes the development of ...

Achillea tenuifolia Lam. (Asteraceae) afforded a dichloromethane fraction from which three known compounds β-sitosterol (compound1), 5-hydroxy, 4',6,7– trimethoxy flavone (salvigenin compound 2), and methyl-gallate (compound 3) were isolated for the first time. The structure of isolated compounds was elucidated by different spectroscopic methods. Applying the molar-ratio method, the complexat...

background: cadmium (cd) is an extremely toxic metal and environmental exposure to cd has been particularly problematic in the world. oral exposure to cd may result in adverse effects on a number of tissues, the immune system, and the cardiovascular system. compounds containing cd are also carcinogenic. the presence of cd in drinking water resources in the southeastern region of rafsanjan plain...