A major role of the methyl-directed mismatch repair (MMR) system of Escherichia coli is to repair postreplicative errors. In this report, we provide evidence that MMR also acts on oxidized DNA, preventing mutagenesis. When cells deficient in MMR are grown anaerobically, spontaneous mutation frequencies are reduced compared with those of the same cells grown aerobically. In addition, we show tha...

1/M Acne conglobata 8 to 0 0.25 60.5 8.1 None None Elevated serum cholesterol, creatinine kinase at last visit, mild cheilitis 2/M Acne fulminans 8 to 2 0.18 55.5 10.0 Oral methylpred nisolone Adapalene gel Transient elevation of serum TG, mild cheilitis 3/F Acne fulminans 8 to 4 0.15 34.8 7.4 Oral prednisolone Clindamycin/ benzoyl-peroxide Transient elevation of serum cholesterol, γ-GT, TG, mi...

The objectives of this study were to investigate whether elicitors induce the production taxoids in Taxus globosa by testing hypothesis that cells a greater accumulation depending on type and concentration elicitor treatment tested. Cell cultures initiated from friable calli for producing using Gamborg medium supplemented with different initial combinations growth regulators as follows: naphtha...

The potential of ultrasound-assisted technology has been demonstrated by several laboratory scale studies. However, their successful industrial scaling-up is still a challenge due to the limited pilot and commercial sonochemical reactors. In this work, a pilot reactor for laccase-hydrogen peroxide cotton bleaching assisted by ultrasound was scaled-up. For this purpose, an existing dyeing machin...

C HRONIC GRANULOMATOUS DISEASE (CCD) is a genetic disorder characterized by chronic and recurrent pyogenic infections, with abscess and granuloma formation throughout the reticuloendothelial system. Patients’ leukocytes fail to demonstrate the increase in oxygen consumption, hexose monophosphate shunt activity, nitroblue tetrazolium reduction, and hydrogen peroxide formation which normally occu...

1. Homogenates of rat liver, spleen, heart and kidney form lipid peroxides when incubated in vitro and actively catalyse peroxide formation in emulsions of linoleic acid or linolenic acid. 2. In liver, catalytic activity is distributed throughout the nuclear, mitochondrial and microsomal fractions and is present in the 100000g supernatant. Activity is weak in the nuclear fraction. 3. Dilute (0....

Tuberculosis (TB) is leading cause of death worldwide from infectious diseases and its inadequate treatment has led to emergence of resistant strains. The emergence of these strains renders the search for new drugs for the treatment of TB. The aim of this study was the evaluation of the anti-TB activity of the extract from fungus Gliocladium sp. MR41, and bioassay-guided fractionation and ident...

Early stages of atherosclerosis are commonly noted in youth. The present study was designed to examine the effects of lifestyle modification in 19 overweight children (age 8-17) who were placed on a high-fiber, low-fat diet in a 2-week residential program where food was provided ad libitum and daily exercise (2-2.5h) was performed. In each subject, pre- and post-intervention fasting blood was d...

a range of some iranian monofloral honeys were assayed for antibacterial activity with and without hydrogen peroxide which is inactivated by the addition of catalase. i t was found that the high amount of antibacterial activity in honeys was due to a factor other than hydrogen peroxide. the test microorganism staphylococcus aureus, was not inhibited by the acidity or the osmolarity of the honey...

Activity of raw milk lactoperoxidase-thiocyanate-hydrogen peroxide (LP) system on four Listeria monocytogenes strains at refrigeration temperatures after addition of 0.25 mM sodium thiocyanate and 0.25 mM hydrogen peroxide was studied. The LP system exhibited a bactericidal activity against L. monocytogenes at 4 and 8 degrees C; the activity was dependent on temperature, length of incubation, a...