Role of environmental factors

The role of an immune response to intestinal bacteria in the development of UC may not be as strong a contributing factor as it is in CD. The potential role of environmental factors in the development of UC implies that the immune response is directed against an unknown antigen. The findings that development and severity of UC are reduced in patients who smoke, or in those with appendectomies, may support the theory that these factors may somehow modify either the genetic component or phenotypic response to immunologic stimuli.11,13... 

Cirulli F. Role of environmental factors on brain development and nerve growth factor expression. Physiol Behav 2001 73 321-330. 

Herbert, R. A., and NedweU, D. B. (1990). Role of environmental factors in regulating nitrate respiration in intertidal sediments. In Denitrification in Soil and Sediment (Revsbech, N. P., and Sorenson, J., eds.). Plenum Press, New York. pp. 77—90. 

Abstract This article provides a personal account of the discovery of the induced synthesis of drug-metabolizing enzymes and of subsequent research that led to the discovery of multiple cytochromes P450 with different catalytic activities. The manuscript also emphasizes the role of environmental factors (in addition to genetic polymorphisms) in explaining person-to-person and day-to-day differences in rates and pathways of drug metabolism that occur in the human population. 

Several studies have focused on environmental issues, including the concept of environmental justice, environmental and occupational education and training in medicine and nursing, and the role of environmental factors in illness (e.g., asthma). 

Cannabinoid Research Methods and Protocols is to provide experimental protocols for scientists interested in marijuana-carmabinoid research from genes to behavior. Although the effects of marijuana use and its medicinal applications may be influenced by multiple genetic factors, the role of environmental factors in the behavioral and psychological effects should not be overlooked, although these may be difficult to replicate in animal models. Nevertheless, animal models are widely used to study the physiological and behavioral correlates of human disorders. Of course, where applicable, humans have been used to study the biochemical, physiological, and behavioral effects of mari-juana-cannabinoids as documented here. 

Employees are less likely to stray from the facts when they are telling about the occurrence at the scene of the accident. When not at the scene, some employees are inclined to exaggerate the role of environmental factors as contributors to the accident. 

Pro 5 The following observations are all suggestive and provide hope that the potential roles of environmental factors and the effects of phenolic acids can eventually be differentiated for no-till wheat/crop systems ... 

Role of Environmental Factors Editors A.Pirson, M.H.Zimmermann... 

The role of environmental factors in allelopathic inhibition. Moisture and nutrient stress, high temperature, light intensity, plant density, and the presence of pathogens can all alter the response of target plants to allelochemicals and also the production or release rates of allelochemi-cals by source plants. Chemicals that are not toxic at certain concentrations in a laboratory assay may, in fact, be significantly inhibitory under stressful field conditions. 

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