PubMed · 3380491
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L L Curtin. 1988. Coping with stress.. https://pubmed.ncbi.nlm.nih.gov/3380491/
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Several studies suggest that classification of piglets early in life based on the degree of resistance they display in a so-called Backtest may be indicative of their coping style at a later age. In the present study behavioural flexibility was investigated in pigs diverging for Backtest response and housing environment during rearing. Pigs were housed either without a rooting substrate (barren housing, B) or in identical pens enriched with deep straw bedding (enriched housing, E) from birth. During the suckling period piglets were subjected to the Backtest. Each piglet was restrained on its back for 1 min and the resistance (i.e. number of escape attempts) was scored. Pigs classified as 'high-resisting' (HR) or as 'low-resisting' (LR) were subjected to a simple (left/right) spatial discrimination (T-maze) task at 8 weeks of age. The effect of a single, subtle intramaze change was determined after acquisition of the task. In addition, pigs were subjected to reversal learning to assess their ability to modulate established behaviour patterns. Housing and its interaction with Backtest classification influenced the behavioural response to the intramaze change: E pigs were considerably more distracted than B pigs. Housing condition affected LR pigs more than HR pigs, as indicated by the interaction effects on various recorded behaviours. These interactions indicate that behavioural responding of pigs with diverging coping characteristics cannot simply be generalised across rearing conditions. Furthermore, HR pigs were less successful in reversal learning than LR pigs, suggesting that they have a higher propensity to develop inflexible behavioural routines.
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OBJECTIVE: To evaluate health-related quality of life (HRQOL) in patients with systemic sclerosis (SSc) using the Short Form 36 (SF-36) and to correlate SF-36 scores with clinical and biologic markers. METHODS: The SF-36 was administered to 24 controls and 24 SSc patients. SSc patients also were evaluated for subset (limited SSc [lSSc] and diffuse SSc [dSSc]), age, disease duration, angiotensin-converting enzyme (ACE) levels, autoantibodies, and skin and internal organ involvement. RESULTS: The physical summary score (PSS) was lower in SSc patients than in controls (P < 0.05), whereas the mental summary score (MSS) was higher in dSSc than in lSSc patients (P < 0.05). Five of 8 single SF-36 domain scores were lower in SSc patients than in controls (P < 0.05). Vitality was higher in dSSc than in controls (P < 0.001). In SSc, elder age correlated with lower PSS; low ACE levels and high skin score correlated with higher general mental health and role limitations due to physical problems, respectively (P < 0.05). Patients with heart involvement had higher scores in general health perceptions (P < 0.05). CONCLUSION: The SF-36 shows that HRQOL is impaired in patients with SSc. Higher scores in MSS and vitality in patients with dSSc and correlations of high SF-36 scores with specific organ involvement suggest that SSc patients with severe disease are more able to cope with HRQOL modification.