the production of reactive oxygen species (ros) in plants under low temperature stress cause damage to plants. in order to evaluate of antioxidant responses of page mandarin young trees (two years old) on different rootstocks under low temperatures, an experiment was conducted in a factorial plan based on completely randomized design. treatment of temperatures were at seven levels include 9, 6,...

A collaborative study was designed to asses two freeze-dried human plasma preparations containing anti-Treponema pallidum antibodies, 05/132 and 05/122, for their suitability as international reference reagents for syphilis serology. Both preparations are intended as replacements of the first international standard (IS) for syphilitic serum antibodies (HS). Samples were tested by eight laborato...

A multi-residue method for 122 pesticides in agricultural products was validated in accordance with Japanese guidelines for residual agricultural chemicals in food. The sample was extracted with acetonitrile. Co-extractives were removed by GPC-graphitized carbon column SPE, followed by silica gel/PSA cartridge column SPE. The pesticides in the test solution were determined by LC-MS/MS using sch...

Background: Basal level of reactive oxygen species (ROS) is essential for sperm acrosomal reaction, hyperactivation, motility, capacitation and fertilization. Ram spermatozoa contain large quantities of polyunsaturated fatty acids in their plasma membranes so are extremely susceptible to ROS induced damage. Materials and Methods: Eight rams (36 ± 5 month of age and with a weight of 64 ± 7 kg) w...

PURPOSE Orange pigment is an important sign of malignancy in melanocytic tumors. There is a question as to whether the pigment accumulation is inside of macrophages or retinal pigment epithelial (RPE) cells. We investigated which cells are involved with this color alteration. METHODS We examined enucleated specimens from two patients with choroidal melanoma and dense orange pigment on fundus ...

Higher levels of morbidity and mortality are due to malignant tumors and Hepatocellular carcinoma (HCC) is considered of a great percentage. The liver-specific microRNA-122 (mir-122) is frequently down-regulated in HCC and is a promising biomarker for the early HCC diagnosis. Restoration of mir-122 renders HCC cells to be sensitive to doxorubicin. The present study aims to investigate the effec...

Background: Among different pollutants released into the environment, dyes are considered as one of the most dangerous contaminants. In recent years, magnetic nanomaterials have attracted much attention for their dye removal capacity. The aim of this study was to explore the adsorption kinetics of an anionic dye (Reactive Orange 13 (RO)) by NiFe2O4 nanoparticles (NiFe2O4 NPs) under various cond...

In contrast to results with bacterial suspensions, phagocytosis of unopsonized bacteria readily occurs when bacteria are adhered to glass or plastic surfaces. However, in contrast to neutrophils, alveolar macrophages produced much less DNA denaturation as measured by acridine orange metachromasia of phagocytized Staphylococcus aureus. We have studied the phagocytosis of unopsonized surface-adhe...

Halting the spread of organic contaminants in subsurface aquifers is a critical environmental problem. We describe a novel "permeable reactive barrier" that results when organophile-solubilizing properties are conferred on siliceous materials by treating them with a cationic polymer and oppositely charged mixed surfactant micelles. Controlled pore glass, quartz sand, and sea sand were treated w...

Industrial use of azo dyes has been linked to severe environmental damage in the textile and apparel sectors. The breakdown products many are poisonous mutagenic, posing a threat human health environment. Hence, dye wastewater bioremediation is gaining interest. objective this study was focused on biodegradation an dye, Reactive Orange 16 (RO16), anaerobic continuous tank reactor operated with ...