نتایج جستجو برای: thiazoly blue tetrazolium

تعداد نتایج: 75825  

2017
René Schiffner Juliane Reiche Steffen Brodt Olaf Brinkmann Matthias Bungartz Georg Matziolis Martin Schmidt

Presently, no intra-operative method for a direct assessment of bone vitality exists. Therefore, we set out to test the applicability of tetrazolium-based staining on bone samples. The explanted femoral heads of 37 patients were used to obtain either cancellous bone fragments or bone slices. Samples were stained with 2,3,5-triphenyl-2H-tetrazolium chloride (TTC) or 3-(4,5-dimethylthiazol-2-yl)-...

2012
Xiao-Hong Zhang Nan Zhang Jian-Mei Lu Qing-Zhong Kong Yun-Feng Zhao

Tetrazolium violet is a tetrazolium salt and has been proposed as an antitumor agent. In this study, we reported for the first time that tetrazolium violet not only inhibited human lung cancer A549 cell proliferation but also induced apoptosis and blocked cell cycle progression in the G1 phase. The results showed that tetrazolium violet significantly decreased the viability of A549 cells at 5-1...

Journal: :Planta medica 1998
J N Eloff

Agar diffusion techniques are used widely to assay plant extracts for antimicrobial activity, but there are problems associated with this technique. A micro-dilution technique was developed using 96-well microplates and tetrazolium salts to indicate bacterial growth. p-Iodonitrotetrazolium violet [0.2 mg/ml] gave better results than tetrazolium red or thiazolyl blue. The method is quick, worked...

2017
Razmik Mirzayans Bonnie Andrais David Murray

Cell-based assays in multiwell plates are widely used for radiosensitivity and chemosensitivity assessment with different mammalian cell types. Despite their relative ease of performance, such assays lack specificity as they do not distinguish between the cytostatic (reversible/sustained growth arrest) and cytotoxic (loss of viability) effects of genotoxic agents. We recently reported studies w...

Journal: :Reproductive BioMedicine Online 2018

Journal: :iranian journal of immunology 0
mohammad vodjgani department of immunology, faculty of medicine, tehran university of medical sciences, tehran, iran hedieh matloubi department of immunology, faculty of medicine, tehran university of medical sciences, tehran, iran abbas ali nasehi department of immunology, faculty of medicine, tehran university of medical sciences, tehran, iran mohammad hossein niknam department of immunology, faculty of medicine, tehran university of medical sciences, tehran, iran anoushirvan kazemnejad department of immunology, faculty of medicine, tehran university of medical sciences, tehran, iran eisa salehi department of immunology, faculty of medicine, tehran university of medical sciences, tehran, iran tahereh aboufazeli

background: schizophrenia has been associated with altered immunity. different studies regarding natural killer cell activity (nka) in schizophrenic patients have shown inconsistent results. objectives: to evaluate nk cell activity in schizophrenic patients in comparison with healthy control individuals.   methods: 30 medication-free schizophrenic patients and 41 healthy sex, age and smoking st...

Journal: :The Biochemical journal 1965
J B CLARK A L GREENBAUM T F SLATER

1. The effects of five different tetrazolium salts on oxidative phosphorylation in rat-liver mitochondria have been investigated. 2. In all cases the mitochondria were uncoupled by very low concentrations of the tetrazolium salts. Further, the transition from a system just exhibiting respiratory control to one in which the mitochondria were totally uncoupled has been shown to occur over very sm...

Journal: :Annals of the New York Academy of Sciences 2001
M Y Wang C Su

Morinda citrifolia (Noni) has been extensively used in folk medicine by Polynesians for over 2,000 years. It has been reported to have broad therapeutic effects, including anticancer activity, in both clinical practice and laboratory animal models. The mechanism for these effects remains unknown. The hypothesis that Morinda citrifolia possesses a cancer preventive effect at the initiation stage...

2006
PALURI S. RAO MEERA SRINIVASAN Meera Srinivasan

The formation ofcis-l,2-dihydroxy-l,2,-dihydronaphthalene from naphthalene by naphthalene oxygenase, purified from Corynebacterium renale ATCC 15075, was demonstrated to involve oxidation of a mol NADH and consumption of one mol oxygen. The enzyme contains one g-atom Fe and one FAD. Catalase inhibited product formation and H2O2 could substitute for NADH in the reaction. Superoxide dismutase inh...

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