Contribution of a Photoreactivable Component to the Oxygen Effect Observed in Certain Rad Mutants of Saccharomyces Cerevisiae after Exposure to High Energy Electrons

Summary

It is shown that a fraction of damage induced by high energy electrons (25 MeV) in certain rad mutants of the yeast Saccharomyces cerevisiae can be photoreactivated. The photoreactivable damage contributes to the lethal effect of this type of irradiation and modifies the oxygen effect. Using photoreactivating light or nigrosin, the amount of photoreactivable damage is reduced and the oxygen enhancement ratio (OER) for yeast mutants increases approximately to the OER found in wild-type cells.     

Timothy Grass Pollen Induces Spatial Reorganisation of F-Actin and Loss of Junctional Integrity in Respiratory Cells

Inflammation - Grass pollens have been identified as mediators of respiratory distress, capable of exacerbating respiratory diseases including epidemic thunderstorm asthma (ETSA). It is...     

Role of genetic and environmental factors in determination of arterial blood pressure level

Three groups of families with different initial levels of arterial pressure in proband children were examined. The relationship was established between the levels of arterial pressure in children and those in their relatives of the first degree of kinship. Based on intrafamilial correlations, the phenotypic dispersion of systolic and diastolic arterial pressure was analyzed. It has been shown that as compared to the genetic factors, the environmental factors play a greater role in arterial pressure variability.     

The Relationship between Posttraumatic Stress Disorder,Interpersonal Sensitivity and Specific Distress Symptoms: the Role of Cognitive Emotion Regulation

Psychiatric Quarterly - This study examined 1) the relationship between posttraumatic stress disorder (PTSD) from past trauma, interpersonal sensitivity and psychiatric co-morbidity, and 2) whether...