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- Holmberg, Sara, et al.
(författare)
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Psychosocial factors and low back pain, consultations, and sick leave among farmers and rural referents : A population-based study
- 2004
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Ingår i: Journal of Occupational and Environmental Medicine. - : Ovid Technologies (Wolters Kluwer Health). - 1076-2752 .- 1536-5948. ; 46:9, s. 993-998
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Tidskriftsartikel (refereegranskat)abstract
- Farmers have more low back pain (LBP) than nonfarmers. In a previous report, we found that differences between farmers and nonfarmers in physical work exposure did not explain the LBP differences. In this report, we tested the hypothesis that psychosocial factors might explain the differences in LBP reporting, medical consultation, and sick leave. A cross-sectional population-based survey of 1,013 middle-aged farmers and 769 matched referents was performed. Data on LBP, consultations, and sick leave during lifetime was obtained along with information on psychosocial, social network, and lifestyle variables. Several of the psychosocial variables were associated with LBP but the difference in LBP prevalence between farmers and nonfarmers could be explained only marginally. Farmers and self-employed referents tended to have lower odds of sick leave because of LBP than employed referents after adjustment for psychosocial factors.
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- Nyström, Gunnar, 1939-, et al.
(författare)
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Ordbok över Sveriges dialekter. Band 1 : Häfte 3, ³Arsa-¹Back
- 2000
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Bok (övrigt vetenskapligt/konstnärligt)abstract
- Ordbok över Sveriges dialekter (OSD) har getts ut i ett band om tre häften:Häfte 1: A - AndtäpptHäfte 2: Andvarpning - ArsaHäfte 3: Arsa - BackAtt publicera fler häften av ordboken är i nuläget inte aktuellt.
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- Nyström-Rosander, Christina, et al.
(författare)
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Chlamydia pneumoniae in patients undergoing surgery for thoracic aortic disease
- 2002
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Ingår i: Scandinavian Cardiovascular Journal. - : Informa UK Limited. - 1401-7431 .- 1651-2006. ; 36:6, s. 329-335
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To investigate if Chlamydia pneumoniae is present in the wall of the thoracic aorta in patients operated on for aneurysm or aortic dissection. DESIGN: Consecutive patients undergoing surgery for thoracic aortic aneurysm (TAA, 32 patients) and for aortic dissection (6 patients) were included in this prospective study. Tissue samples from the aorta were analysed for the presence of C. pneumoniae by polymerase chain reaction (PCR), histopathology, immunohistochemistry and in one aortic tissue sample C. pneumoniae was verified by electron microscopy and immunogold labelling technique. Cultured Hep 2 cells infected with C. pneumoniae were used as a positive control for electron microscopy. Sera for microimmunofluorescence were obtained in 36/38 and throat swabs for C. pneumoniae PCR in 17/38 patients. RESULTS: Chlamydia pneumoniae was detected by PCR in 4 of 32 TAA tissue samples (12%) and in 0 of 6 patients operated on for aortic dissection. Chlamydia pneumoniae inclusion bodies in one of the PCR positive tissue samples were verified by electron microscopy. IgG antibodies to C. pneumoniae were present in 17/31 (55%) and IgA in 15/31 (48%) of the TAA patients and in none of five tested patients with dissection. None of the tested throat swabs was positive. CONCLUSION: In this study we report the presence of C. pneumoniae by PCR and electron microscopy in the wall of TAA. A high prevalence of serum IgA antibodies to C. pneumoniae was found in TAA patients. In contrast no signs of C. pneumoniae were detected in patients with thoracic aortic dissection.
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- Nyström-Rosander, Christina, et al.
(författare)
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Interactions between Chlamydia pneumoniae and trace elements : a possible link to aortic valve sclerosis
- 2003
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Ingår i: Biological Trace Element Research. - 0163-4984 .- 1559-0720. ; 91:2, s. 97-110
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Tidskriftsartikel (refereegranskat)abstract
- An association between Chlamydia pneumoniae and atherosclerotic cardiovascular diseases has been suggested. However, other factors may interact in the pathogenesis of valve sclerosis. Therefore, trace elements important for C. pneumoniae growth and host defense and markers of C. pneumoniae infection were studied in sclerotic valves and serum. Forty-six patients undergoing surgical valve replacement due to advanced aortic sclerosis were prospectively studied. Valves from 15 forensic cases with no heart valve disease and plasma from 46 healthy volunteers served as controls. C. pneumoniae was detected in 16/46 (34.8 %) sclerotic valves and in 0/15 forensic controls. IgG and IgA antibodies to C. pneumoniae were present in 54.3% and 26.1 % patients, respectively. In the patients' valves, iron, magnesium, and zinc each correlated to calcium, a marker of the histopathological severity of disease. Patients showed 10- to 70-fold increases of these trace elements in valves and an increased copper/zinc ratio in serum. In a majority of aortic sclerosis patients, one of several markers of C. pneumoniae infection were detected and all patients had a disturbed trace element balance in valves and serum suggestive of active immune process and infection. The pattern of trace element changes was essentially similar regardless of positive makers of C. pneumoniae, suggesting a similar etiopathogenesis in both subgroups. The 20-fold increase in iron, essential for C. pneumoniae growth, in sclerotic valves suggests a new possible link to this infection in aortic sclerosis.
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