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Sökning: WFRF:(Bergström Göran) > (2010-2011) > (2010)

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1.
  • Andren, Henrik, et al. (författare)
  • Viltpopulationernas storlek
  • 2010
  • Ingår i: Vilt, människa, samhälle. - 9789147094189 ; , s. 33-54
  • Bokkapitel (populärvet., debatt m.m.)
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2.
  • Behre, Carl Johan, 1968, et al. (författare)
  • Moderate physical activity is associated with lower apoB/apoA-I ratio, independently of other risk factors in healthy middle-aged men.
  • 2010
  • Ingår i: Angiology. - : SAGE Publications. - 0003-3197 .- 1940-1574. ; 61:8, s. 775-779
  • Tidskriftsartikel (refereegranskat)abstract
    • Low-density lipoprotein is recognized as a primary vascular risk factor. However, recent data favor apolipoprotein (apo)B and apoA-I as risk factors with higher predictive values than conventional lipids. We investigated how leisure-time physical activity relates to the serum apoB/apoA-I ratio in middle-aged men. The results showed that compared with a sedentary lifestyle, moderate physical activity was associated with a decreased apoB/apoA-I ratio (1.01 ± 0.28 vs 0.87 ± 0.24, P < .05) and increased apoA-I levels (1.30 ± 0.20 g/L vs 1.43 ± 0.22 g/L, P < .05), whereas vigorous activity was required to observe a reduction in apoB levels (1.27 ± 0.28 g/L vs 1.14 ± 0.24 g/L, P < .05). A covariate analysis showed that leisure time physical activity was also associated with reduced apoB/apoA-I ratios after adjustment for smoking, systolic blood pressure and waist circumference. Importantly, this association was seen at moderate levels of physical activity, supporting the notion that some activity is better than none.
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4.
  • Bodvik, Rasmus, et al. (författare)
  • Aggregation and network formation of aqueous methylcellulose and hydroxypropylmethylcellulose solutions.
  • 2010
  • Ingår i: Colloids and Surfaces A. - : Elsevier. - 0927-7757 .- 1873-4359. ; 354:1-3, s. 162-171
  • Tidskriftsartikel (refereegranskat)abstract
    • Solution properties of methylcellulose (MC) and hydroxypropylmethylcellulose (HPMC) have been investigated as a function of temperature and concentration using a broad range of experimental techniques. Novelties include the extensive comparison between MC and HPMC solutions as well as the combination of techniques, and the use of Cryo transmission electron microscopy (Cryo-TEM). The correlation between rheology and light scattering results clearly demonstrates the relation between viscosity change and aggregation. Cryo-TEM images show the network structures formed. Viscosity measurements show that for both MC and HPMC solutions sudden changes in viscosity occur as the temperature is increased. The onset temperature for these changes depends on polymer concentration and heating rate. For both MC and HPMC solutions the viscosity on cooling is very different compared to on heating, demonstrating the slow equilibration time. The viscosity changes in MC and HPMC solutions are dramatically different; for MC solutions the viscosity increases by several orders of magnitude when a critical temperature is reached, whereas for HPMC solutions the viscosity decreases abruptly at a given temperature, followed by an increase upon further heating. Light and (SAXS) small-angle X-ray scattering shows that the increase in viscosity, for MC as well as for HPMC solutions, is due to extensive aggregation of the polymers. Light scattering also provides information on aggregation kinetics. The SAXS measurements allow us to correlate aggregation hysteresis to the viscosity hysteresis, as well as to extract some structural information. Cryo-TEM images give novel information that a fibrillar network is formed in MC solutions, and the strong viscosity increase occurs when this network spans the whole solution volume. For HPMC solutions the behaviour is more complex. The decrease in viscosity can be related to the formation of compact objects, and the subsequent increase to formation of fibrillar structures, which are more linear and less entangled than for MC.
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5.
  • Elias, Erik, 1979, et al. (författare)
  • Erythrocyte sodium-lithium countertransport activity is inversely correlated to adiponectin, retinol binding protein 4 and body height.
  • 2010
  • Ingår i: Scandinavian journal of clinical and laboratory investigation. - : Informa UK Limited. - 1502-7686 .- 0036-5513. ; 70:7, s. 487-91
  • Tidskriftsartikel (refereegranskat)abstract
    • We have previously described that the sodium/lithium countertransport (SLC) in the erythrocyte cell membrane is closely linked to obesity and insulin resistance. Adiponectin and retinol-binding protein 4 (RBP-4) are believed to affect obesity and insulin resistance. In the present study, we aimed to further characterize the relationship between SLC, inflammatory markers, adiponectin and RBP-4.
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6.
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7.
  • Fagerberg, Björn, 1943, et al. (författare)
  • Differences in lesion severity and cellular composition between in vivo assessed upstream and downstream sides of human symptomatic carotid atherosclerotic plaques
  • 2010
  • Ingår i: Journal of Vascular Surgery. - 1423-0135. ; 47:3, s. 221-230
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The heterogeneous structure of carotid atherosclerotic plaques may be better understood if it is related to blood flow variations, influencing gene expression and cellular functions. Upstream of the maximum stenosis there is laminar blood flow and high shear stress, downstream there is turbulence and low shear stress. We studied if these variations were associated with differences in plaque morphology and composition between sites located up- and downstream of the maximum stenosis in symptomatic carotid plaques. Methods: Patients with symptomatic carotid stenosis were examined with magnetic resonance angiography to localize the maximum stenosis in-vivo, prior to endarterectomy. In 41 endarterectomized specimens, transverse tissue sections prepared up- and downstream of the maximum stenosis were compared using histopathology and immunohistochemistry. Results: The location of maximum stenosis relative the carotid bifurcation varied considerably between plaques. Compared with the downstream side, the upstream side of the stenosis had higher incidence of severe lesions with cap rupture and intraplaque hemorrhage, more macrophages, less smooth muscle cells and more collagen. Conclusions: The up- and downstream sides of symptomatic carotid plaques differed in plaque morphology and composition. This implies that the intraplaque location of sampling sites may be a confounding factor in studies of atherosclerotic plaques.
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8.
  • Helldin, Jan Olof, et al. (författare)
  • Åtgärder - öka vilttillgången
  • 2010
  • Ingår i: Vilt, människa, samhälle. - 9789147094189 ; , s. 271-284
  • Bokkapitel (populärvet., debatt m.m.)
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9.
  • Johansson, Karin, et al. (författare)
  • Ankle-Brachial Index Should Be Measured in Both the Posterior and the Anterior Tibial Arteries in Studies of Peripheral Arterial Disease
  • 2010
  • Ingår i: Angiology. - : SAGE Publications. - 0003-3197 .- 1940-1574. ; 61:8, s. 780-783
  • Tidskriftsartikel (refereegranskat)abstract
    • Lower extremity peripheral artery disease (PAD) is a powerful predictor of cardiovascular events and mortality. The ankle-brachial index (ABI) is an objective and standard diagnostic method to diagnose PAD (an ABI ≤0.9 is considered pathological). The American Heart Association (AHA) and the American College of Cardiology (ACC) recommend using both the posterior- and anterior tibial arteries when assessing ABI. We investigated if there was a difference in the diagnosis of PAD if the ABI was measured in the posterior- or the anterior tibial artery. The results showed that among subjects with ABI ≤0.9, between 30% and 40% would not get a PAD diagnosis if the ABI was measured in only 1 of the arteries. In conclusion, this study emphasizes the importance of measuring the ABI in both the posterior tibial and the anterior tibial arteries when diagnosing PAD.
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10.
  • Ljunggren, Lars, et al. (författare)
  • Recruitment failure of coastal predatory fish in the Baltic Sea coincident with an offshore ecosystem regime shift
  • 2010
  • Ingår i: ICES Journal of Marine Science. - : Oxford University Press (OUP). - 1054-3139 .- 1095-9289. ; 67:8, s. 1587-1595
  • Tidskriftsartikel (refereegranskat)abstract
    • The dominant coastal predatory fish in the southwestern Baltic Sea, perch and pike, have decreased markedly in abundance during the past decade. An investigation into their recruitment at 135 coastal sites showed that both species suffered from recruitment failures, mainly in open coastal areas. A detailed study of 15 sites showed that areas with recruitment problems were also notable for mortality of early-stage larvae at the onset of exogenous food-intake. At those sites, zooplankton abundance predicted 83 and 34% of the variation in young of the year perch and pike, respectively, suggesting that the declines were caused by recruitment failure attributable to zooplankton food limitation. Incidences of recruitment failure match in time an offshore trophic cascade that generated massive increases in planktivorous sprat and decreases in zooplankton biomass in the early 1990s. Therefore, sprat biomass explained 53% of the variation in perch recruitment from 1994 to 2007 at an open coastal site, where three-spined stickleback also increased exponentially after 2002. The results indicate that the dramatic change in the offshore ecosystem may have propagated to the coast causing declines of the dominating coastal predators perch and pike followed by an increase in the abundance of small-bodied fish.
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