The cotton bollworm, Helicoverpa armigera is a polyphagous pest in Asia, Africa, and the Mediterranean Europe. Salicylic acid (SA) and jasmonic acid (JA) are the cell signaling molecules produced in response to insect attack in plants. The effect of these signaling molecules was investigated on the oxidative phosphorylation and oxidative stress of H. armigera. SA significantly inhibited the sta...

AP-1-like transcription factors play crucial roles in oxidative stress responses in yeast and filamentous fungi. The deletion of an AP-1-like transcription factor gene, nap-1, in Neurospora crassa slightly increased its sensitivity to oxidative stressors, including menadione. Microarray and quantitative real-time reverse transcriptase-PCR analyses were employed to identify menadione-inducible g...

Low-density lipoprotein (LDL) oxidation mediated by a variety of catalysts in atherosclerotic lesions plays a crucial role in the genesis and evolution of atherosclerotic plaques. In this study we focused on oxidative properties of hemoglobin (Hb)-modified LDL because Hb is present in atherosclerotic lesions. Under low oxygen tensions Hb was previously found to modify apolipoprotein B100 with c...

The aim of this study was to describe the thermal properties selected cultivars flaxseed oil by use differential scanning calorimetry (DSC) technique. crystallization and melting profiles were analyzed depending on different rates (1, 2, 5 °C/min) as well oxidative induction time (OIT) isothermally at 120 °C 140 °C, oxidation onset temperatures (Ton) 2 °C/min measured. manifested a single peak,...

(project Ro2/012/06) of the University of Muenster and by a grant of the Deutsche Forschungsgemeinschaft (DFG SU 195/3-1). Abstract Monocytes and macrophages may either promote or down-regulate inflammatory reactions depending on their state of activation. The effects of glucocorticoids (GC), the most widely used immunosuppressive drugs, on monocytes are currently not well defined. Analyzing th...

the oxidative stability of margarine supplemented with different concentrations of fennel (foeniculum vulgare) seed extract (fse) was compared to the synthetic antioxidants; butylated hydroxyanisole (bha) and butylated hydroxytoluene (bht) at legal concentrations. the experiment was carried out under accelerated storage conditions for 4 weeks employing peroxide value (pv), p-anisidine value (av...

Gene expression is modulated by both physiological signals (hormones, cytokines, etc.) and environmental stimuli (physical parameters, xenobiotics, etc.). Oxidative stress appears to be a key pleiotropic modulator which may be involved in either pathway. Indeed, reactive oxygen species (ROS) have been described as second messengers for several growth factors and cytokines, but have also been sh...

Denervation leads to the activation of the catabolic pathways, such as the ubiquitin-proteasome and autophagy, resulting in skeletal muscle atrophy and weakness. Furthermore, denervation induces oxidative stress in skeletal muscle, which is thought to contribute to the induction of skeletal muscle atrophy. Several muscle diseases are characterized by denervation, but the molecular pathways cont...

Ageing and stabilization polymers is a major part of materials science. Aging of polymers defined as a set of chemical and physical transformations, leads to the loss of their set the desired properties. The main role in these transformations belong to chemical processes of degradation and crosslinking of macromolecules. Processes decomposition and structuring polymer conjugates include radical...