This taxonomy can be used to improve the specification of interventions in published reports, thus improving replication, implementation and evidence syntheses. This will strengthen the scientific study of behaviour change and intervention development.
Gulf War Illness (GWI) is a chronic multisymptom condition with a central nervous system (CNS) component, for which there is no treatment available. It is now believed that the combined exposure to Gulf War (GW) agents, including pyridostigmine bromide (PB) and pesticides, such as permethrin (PER), was a key contributor to the etiology of GWI. In this study, a proteomic approach was used to characterize the biomolecular disturbances that accompany neurobehavioral and neuropathological changes associated with combined exposure to PB and PER. Mice acutely exposed to PB and PER over 10 days showed an increase in anxiety-like behavior, psychomotor problems and delayed cognitive impairment compared to control mice that received vehicle only. Proteomic analysis showed changes in proteins associated with lipid metabolism and molecular transport in the brains of GW agent-exposed mice compared to controls. Proteins associated with the endocrine and immune systems were also altered, and dysfunction of these systems is a prominent feature of GWI. The presence of astrogliosis in the GW agent-exposed mice compared to control mice further suggests an immune system imbalance, as is observed in GWI. These studies provide a broad perspective of the molecular disturbances driving the late pathology of this complex illness. Evaluation of the potential role of these biological functions in GWI will be useful in identifying molecular pathways that can be targeted for the development of novel therapeutics against GWI.
The purpose of this study was to determine how health impairment, socioeconomic status, and social support relate to life satisfaction in later life. Using data from a sample of 320 older adults from The Georgia Centenarian Study, we constructed a structural model of life satisfaction. LISREL analysis was performed to test a two-factor model that included Happiness and Congruence and to determine the relationship of health impairment, socioeconomic status (SES), and social support to Happiness and Congruence, two measures of the Life Satisfaction Index-A (LSI-A). Data were found to provide a satisfactory fit of the model (GFI = 0.94; AFGI = 0.91). Social support and SES were found to have direct effects on health impairment. Health impairment was a key predictor and mediating variable of Happiness and Congruence. Findings also support a relationship between social resources and subjective well-being in later life. In particular, the association between social resources and life satisfaction was mediated through health impairment. These findings offer understanding relative to how health and social resources influence past and present assessments of subjective well-being among the elderly.
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