The aim of this study was to evaluate the survival responses of two strains of Vibrio splendidus, both in natural and in defined media. For this purpose, freshwater and defined media containing different salinities (3.3-0.9 %) and nutrient concentrations (17-0.005 mg x l(-1)) were assayed. The incubation temperatures were established at 4, 10 and 22 degrees C. The acridine orange staining techn...

Tetrazolium test (TZT) can quickly evaluate in detail the viability and vigor of seeds. This study aimed to determine optimal conditions for conducting TZT on seeds Handroanthus spongiosus. For this purpose, from three lots were pre-soaked water 16 h, followed by extraction tegument immersion tetrazolium salt solutions at different concentrations (0.01–0.1%), increasing periods (1–4 h) 30 °C da...

THE ROLE OF NOTCH 1 EXPRESSION IN MAMMARY EPITHELIAL CELLS ON THE SECRETION OF GROWTH FACTORS AND CYTOKINES Malignant tumors thrive in their microenvironment by secreting factors that affect the growth of cells around them and/or cytokine release from the immune cells sent to destroy them. In mammary gland tumorigenesis, the enhanced expression of Notch in tumor cells has been shown to play an ...

BACKGROUND The chemopreventive effect of green tea polyphenols, such as (-)-epigallocatechin-3-gallate (EGCG), has been well demonstrated in cell culture studies. However, a wide range of IC(50) concentrations has been observed in published studies of the anti-proliferative activity of EGCG from different laboratories. Although the susceptibility to EGCG treatment is largely dependent on cancer...

exposure to air pollutants is significantly associated with health risks ranging from bronchial reactivity to morbidity and mortality. however, the precise mechanisms are not always fully understood. the aim of this study was to investigate the effects of sulphur dioxide (so2) on cell viability and cytokine production of a549-human pulmonary epithelial cells. test atmospheres of so2 were genera...

The possibility of application of 4-nitrocatechol (4-NC) - tetrazolium salt - organic solventsystems for liquid-liquid extraction-spectrophotometric vanadium (IV and V) speciation wasstudied. Six commercially available tetrazolium salts (2,3,5-triphenyltetrazolium chloride (TTC),3-(2-naphtyl)-2,5-diphenyltetrazolium chloride (Tetrazolium Violet, TV); 3-(4,5-dimethyl-2-thiazol)-2,5-diphenyltetra...

background: multiple sclerosis (ms) is an autoimmune disease of central nerves system, in which neurological disabilities occur in young adults. despite increasing number of studies on ms, some aspects of this disorder are still unclear. in the previous studies, it has been proven that there is direct relation between ms incidence and vitamin d deficiency. thereby, strong evidence in ms pathoge...