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- Språngberg, A, et al.
(författare)
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SBU. Godartad prostataförstoring med avflödeshinder. En systematisk litteraturöversikt : Godartad prostataförstoring med avflödeshinder
- 2011
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Slutsatser Godartad prostataförstoring (benign prostatahyperplasi, BPH) är ett vanligt tillstånd som med stigande ålder drabbar i princip alla män. En del av dessa män får urineringsproblem och cirka 4 500 opereras varje år för en förstorad prostata. Många med lindrigare besvär behandlas med läkemedel eller behöver ingen behandling alls. Avflödeshinder kan obehandlat ge allvarlig urinretention som skadar njurarna, och en urinstämma kan vara livshotande. För att avgränsa den grupp av män där problemen med urineringen beror på en förstorad prostata används ett tiotal olika diagnostiska metoder. När det gäller behandling finns det flera olika kirurgiska metoder, varav några är väl etablerade och andra av mer experimentell karaktär. Under 1990-talet har också flera läkemedel introducerats. SBU har därför bedömt att det funnits ett behov av att göra en systematisk genomgång av den vetenskapliga grunden för dessa olika metoder. Nedan följer de viktigaste slutsatserna av arbetet.
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- Appelkvist, E L, et al.
(författare)
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Synthesis of mevalonate pathway lipids in fibroblasts from Zellweger and X-linked ALD patients.
- 1999
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Ingår i: Pediatric Research. - : Springer Science and Business Media LLC. - 0031-3998 .- 1530-0447. ; 46:3, s. 345-50
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Tidskriftsartikel (refereegranskat)abstract
- Fibroblasts were cultured to determine the involvement of peroxisomes in cholesterol and dolichol synthesis. For this purpose, the behavior of cells from patients with Zellweger syndrome, with X-linked adrenoleukodystrophy, and from nondiseased control subjects was studied. Cells both after pretreatment with mevinolin and without pretreatment were incubated in a medium containing [3H]-mevalonate. In fibroblasts from patients with peroxisomal defects, the cholesterol content and mevalonate incorporation into cholesterol were decreased by 10-20% in comparison with control cells. Mevinolin pretreatment decreased the incorporation rate of [3H]-mevalonate into cholesterol but increased the labeling of ubiquinone and dolichol both in diseased and control cells. Squalene synthase activity was unchanged, whereas the activity of farnesyl-pyrophosphate synthase was increased in the diseased states. The results show that in patients with peroxisomal deficiency neither the amount nor the rate of synthesis of cholesterol and dolichol is reduced to any greater extent.
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- Eeg-Olofsson, O, et al.
(författare)
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D-2-hydroxyglutaric aciduria with cerebral, vascular, and muscular abnormalities in a 14-year-old boy
- 2000
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Ingår i: Journal of child neurology. - : SAGE Publications. - 0883-0738 .- 1708-8283. ; 15:7, s. 488-492
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Tidskriftsartikel (refereegranskat)abstract
- D-2-Hydroxyglutaric Aciduria is a rare metabolic disorder that can cause injury to the brain and other organs. This case report concerns a 14-year-old boy showing irritability and typical signs of pyloric stenosis early postnatally. From the age of 3 months he had epilepsy. He was mentally retarded, hypotonic with preserved reflexes, and dystonic. The features were dysmorphic with elongated head and high arched palate. Cardiomegaly with aortic insufficiency was diagnosed. Magnetic resonance imaging of the brain revealed atrophy, reduced periventricular white matter, and multiple bilateral aneurysms of the middle cerebral arteries. The boy died at the age of 14 years. Autopsy confirmed the white-matter reduction of the cerebral hemispheres as well as the arterial aneurysms of the middle cerebral arteries. Lesions of a few leptomeningeal and cerebral microvessels and of the renal and pulmonary arteries were also found. There were bilateral infarcts of the kidneys and signs of cardiomyopathy with noncompensated left ventricular failure. Signs of myopathy were evident. The clinical and postmortem findings imply a disseminated mesenchymal process. (J Child Neurol 2000;15:488-492).
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- Persson, E, et al.
(författare)
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Plasma lipolytic activity after subcutaneous administration of heparin and a low molecular weight heparin fragment
- 1987
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Ingår i: Thrombosis Research. - : Elsevier BV. - 1879-2472 .- 0049-3848. ; 46:5, s. 697-704
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Tidskriftsartikel (refereegranskat)abstract
- The effect of heparin and a low molecular weight heparin fragment (LMWH, mean molecular weight 4000-6000) on plasma anticoagulation and lipolysis was studied in eight healthy men. The activities of antifactor Xa (antiFXa), lipoprotein lipase (LPL), hepatic lipase (HL) and plasma levels of free fatty acids (FFA) were analysed after the injection of 5000 antiFXa units of heparin or LMWH subcutaneously. In comparison with heparin, the administration of LMWH resulted in a significantly higher antiFXa activity (p less than 0.001) but a lower release of LPL and HL (p less than 0.001), which did not increase plasma FFA. It is concluded that subcutaneous injection of LMWH in men elicits an adequate anticoagulant effect measured as antiFXa activity but has a negligible effect on plasma lipolytic activity.
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| 34. |
- Persson, E, et al.
(författare)
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Plasma lipolytic activity and substrate oxidation after intravenous administration of heparin and a low molecular weight heparin fragment
- 1990
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Ingår i: Clinical Physiology. - 1365-2281. ; 10:6, s. 573-583
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Tidskriftsartikel (refereegranskat)abstract
- This study examines the effects of heparin and a low molecular weight heparin (LMWH) fragment on plasma lipolytic activity and substrate oxidation. Indirect calorimetry was performed continuously in healthy male subjects receiving a constant infusion of fat emulsion (0.2 g min-1) and glucose (0.8 g min-1) during a period of 4 h. After 2 h an infusion of heparin (n = 6) or LMWH (n = 6) (100 antifactor Xa units kg-1) or saline (n = 6) was given over 1 h. Plasma concentration of the fat emulsion decreased by 76 +/- 5% with heparin and by 12 +/- 7% with LMWH (P less than 0.01). In the case of LMWH the initial fall was followed by a consistent rise in fat emulsion concentration for the entire remaining study period. Compared to the control experiments, plasma FFA increased five times with heparin and three times with LMWH (P less than 0.05). The average respiratory quotient (RQ) and energy expenditure (EE) increased constantly during the study period and did not differ significantly between the groups. In all groups the average increase in glucose oxidation was 40-50%, while fat oxidation decreased to a comparable extent. Infusions of heparin and LMWH had no effect on RQ or EE. A microcalorimetric study on isolated rat adipocytes in buffer solutions containing glucose, fat emulsion, heparin or LMWH was also made. The heat output from the adipocytes was not influenced by the presence of heparin or LMWH. In conclusion, infusion of heparin resulted in a pronounced increase in FFA availability, whereas LMWH exerted a less marked lipolytic effect. However, the heparin-induced elevations in plasma FFA were not accompanied by measurable rises in lipid oxidation rate.
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