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Träfflista för sökning "WFRF:(Smith Peter) srt2:(2000-2004)"

Search: WFRF:(Smith Peter) > (2000-2004)

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1.
  • Bache, Iben, et al. (author)
  • An excess of chromosome 1 breakpoints in male infertility.
  • 2004
  • In: European Journal of Human Genetics. - : Springer Science and Business Media LLC. - 1476-5438 .- 1018-4813. ; 12:12, s. 993-1000
  • Journal article (peer-reviewed)abstract
    • In a search for potential infertility loci, which might be revealed by clustering of chromosomal breakpoints, we compiled 464 infertile males with a balanced rearrangement from Mendelian Cytogenetics Network database (MCNdb) and compared their karyotypes with those of a Danish nation-wide cohort. We excluded Robertsonian translocations, rearrangements involving sex chromosomes and common variants. We identified 10 autosomal bands, five of which were on chromosome 1, with a large excess of breakpoints in the infertility group. Some of these could potentially harbour a male-specific infertility locus. However, a general excess of breakpoints almost everywhere on chromosome 1 was observed among the infertile males: 26.5 versus 14.5% in the cohort. This excess was observed both for translocation and inversion carriers, especially pericentric inversions, both for published and unpublished cases, and was significantly associated with azoospermia. The largest number of breakpoints was reported in 1q21; FISH mapping of four of these breakpoints revealed that they did not involve the same region at the molecular level. We suggest that chromosome 1 harbours a critical domain whose integrity is essential for male fertility.
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2.
  • Axelsen, Mette, 1965, et al. (author)
  • Suppression of nocturnal fatty acid concentrations by bedtime carbohydrate supplement in type 2 diabetes: effects on insulin sensitivity, lipids, and glycemic control.
  • 2000
  • In: The American journal of clinical nutrition. - 0002-9165. ; 71:5, s. 1108-14
  • Journal article (peer-reviewed)abstract
    • BACKGROUND: Bedtime ingestion of slow-release carbohydrates leads to sustained nocturnal fatty acid suppression and improved glucose tolerance in type 2 diabetic patients. OBJECTIVE: This study assessed the effects of 2 different doses of bedtime carbohydrate supplement (BCS) on morning glycemic control and glycated hemoglobin (Hb A(1c)) in type 2 diabetic patients. In addition, the effects of the high-dose BCS on insulin sensitivity and postprandial glucose and triacylglycerol concentrations were assessed. DESIGN: Two BCS doses were studied separately in 7-wk randomized, placebo-controlled, double-blind studies with either a parallel (low-dose BCS; n = 24 patients) or crossover (high-dose BCS; n = 14 patients) design. The effects of the low and high doses (0.30 and 0.55 g uncooked cornstarch/kg body wt, respectively) were compared with those of a starch-free placebo. RESULTS: Compared with the starch-free placebo, the high-dose BCS ( approximately 45 g) produced enhanced nocturnal glucose (P < 0.01) and insulin (P < 0.01) concentrations as well as a 32% suppression of fatty acid concentrations (P < 0.01). Moreover, glucose tolerance (P < 0.05) and C-peptide response (P < 0.05) improved after breakfast the next morning. The low-dose BCS ( approximately 25 g) improved fasting blood glucose concentrations (P < 0.05). However, there were no improvements in insulin sensitivity, postprandial triacylglycerol concentrations, or Hb A(1c) after 7 wk. CONCLUSION: Nocturnal fatty acid suppression by BCS improved fasting and postprandial blood glucose concentrations in type 2 diabetic patients the next morning. In contrast, no improvements in insulin sensitivity, postprandial triacylglycerol concentrations, or long-term glycemic control assessed by Hb A(1c) were seen after BCS supplementation.
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3.
  • Gallo, Katia, et al. (author)
  • UV-written channel waveguides in proton-exchanged Lithium Niobate
  • 2004
  • In: Conference on Lasers and Electro-Optics, CLEO. ; , s. 557-559
  • Conference paper (peer-reviewed)abstract
    • We report on the direct UV-writing of channel waveguides in annealed proton-exchanged (APE) and reverse proton-exchanged (RPE) layers in LiNbO 3 and demonstrate efficient guiding within single mode channels at telecom wavelengths.
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4.
  • Jayson, Gordon, et al. (author)
  • Molecular imaging and biological evaluation of HuMV833 anti-VEGF antibody : Implications for trial design of antiangiogenic antibodies
  • 2002
  • In: Journal of the National Cancer Institute. - 0027-8874 .- 1460-2105. ; 94:19, s. 1484-1493
  • Journal article (peer-reviewed)abstract
    • Background: Vascular endothelial growth factor (VEGF) is a potent angiogenic cytokine, and various inhibitory agents, including specific antibodies, have been developed to block VEGF-stimulated angiogenesis. We developed HuMV833, a humanized version of a mouse monoclonal anti-VEGF antibody (MV833) that has antitumor activity against a number of human tumor xenografts, and investigated the distribution and biologic effects of HuMV833 in patients in a phase I trial. Methods: Twenty patients with progressive solid tumors were treated with various doses of HuMV833 0.3, 1, 3, or 10 mg/kg). Positron emission tomography with 124I-HuMV833 was used to measure the antibody distribution in and clearance from tissues. Magnetic resonance imaging was used to measure the vascular permeability surface area product with a first-pass pharmacokinetic model (Kfp) to determine tumor vascular permeability. Results: The antibody was generally well tolerated, although the incremental dose, phase I study design, and pharmacodynamic end-points could not identify the optimum biologically active dose. Antibody distribution and clearance were markedly heterogeneous between and within patients and between and within individual tumor. HuMV833 distribution to normal tissues also varied among patients, but the antibody was cleared from these tissues in a homogeneous fashion. Permeability was strongly heterogeneous between and within patients and between and within individual tumors. All tumors showed a reduction in kfp 48 hours after the first treatment (median = 44%, range = 4%-91%). Conclusions: Because of the heterogeneity in tumor biology with respect to anti-body uptake and clearance, we suggest that either intrapatient dose escalation approaches or larger, more precisely defined patient cohorts would be preferable to conventional strategies in the design of phase I studies with anitiangiogenic compounds like HuMV833.
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5.
  • Lehmann, O. J., et al. (author)
  • Novel anterior segment phenotypes resulting from forkhead gene alterations: Evidence for cross-species conservation of function
  • 2003
  • In: Investigative Ophthalmology & Visual Science. - : Association for Research in Vision and Ophthalmology (ARVO). - 0146-0404 .- 1552-5783. ; 44:6, s. 2627-2633
  • Journal article (peer-reviewed)abstract
    • PURPOSE. Mutations in murine and human Versions of an ancestrally related gene usually result in similar phenotypes. However, interspecics differences exist, and in the case of two forkhead transcription factor genes (FOXC1 and FOXC2), these differences include corneal or anterior segment phenotypes, respectively. This study was undertaken to determine whether such discrepancies provide an opportunity for identifying novel human-murine ocular phenotypes. METHODS. Four pedigrees with early-onset glaucoma phenotypes secondary to segmental chromosomal duplications or deletions encompassing FOXC1 and 18 individuals from 9 FOXC2 mutation pedigrees underwent detailed ocular phenotyping. Subsequently, mice with mutations in Foxc1 or a related forkhead gene, Foxe3, were assessed for features of the human phenotypes. RESULTS. A significant increase in central corneal thickness was present in affected individuals from the segmental duplication pedigrees compared with their unaffected relatives (mean increase 13%, maximum 35%, P < 0.05). Alterations in corneal thickness were present in mice heterozygous and homozygous for Foxe3 mutations but neither in Foxc1 heterozygotes nor the small human segmental deletion pedigree. Mutations in FOXC2 resulted in ocular anterior segment anomalies. These were more severe and prevalent with mutations involving the forkhead domain. CONCLUSIONS. Normal corneal development is dependent on the precise dose and levels of activity of certain forkhead transcription factors. The altered corneal thickness attributable to increased forkhead gene dosage is particularly important, because it may affect the clinical management of certain glaucoma subtypes and lead to excessive treatment. The FOXC1 and Foxe3 data, taken together with the novel ocular phenotypes of FOXC2 mutations, highlight the remarkable cross-species conservation of function among forkhead genes.
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6.
  • Lohmander, Stefan, et al. (author)
  • Osteoarthritis
  • 2003
  • In: Textbook of sports medicine. - 0632065095 ; , s. 422-422:10, s. 1402-1430, s. 1301-1301
  • Book chapter (other academic/artistic)
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7.
  • Nore, Beston F, et al. (author)
  • Identification of phosphorylation sites within the SH3 domains of Tec family tyrosine kinases
  • 2003
  • In: Biochimica et Biophysica Acta. - 0006-3002 .- 1878-2434. ; 1645:2, s. 123-132
  • Journal article (peer-reviewed)abstract
    • Tec family protein tyrosine kinases (TFKs) play a central role in hematopoietic cellular signaling. Initial activation takes place through specific tyrosine phosphorylation situated in the activation loop. Further activation occurs within the SH3 domain via a transphosphorylation mechanism, which for Bruton's tyrosine kinase (Btk) affects tyrosine 223. We found that TFKs phosphorylate preferentially their own SH3 domains, but differentially phosphorylate other member family SH3 domains, whereas non-related SH3 domains are not phosphorylated. We demonstrate that SH3 domains are good and reliable substrates. We observe that transphosphorylation is selective not only for SH3 domains, but also for dual SH3SH2 domains. However, the dual domain is phosphorylated more effectively. The major phosphorylation sites were identified as conserved tyrosines, for Itk Y180 and for Bmx Y215, both sites being homologous to the Y223 site in Btk. There is, however, one exception because the Tec-SH3 domain is phosphorylated at a non-homologous site, nevertheless a conserved tyrosine, Y206. Consistent with these findings, the 3D structures for SH3 domains point out that these phosphorylated tyrosines are located on the ligand-binding surface. Because a number of Tec family kinases are coexpressed in cells, it is possible that they could regulate the activity of each other through transphosphorylation.
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8.
  • Salomon, Kim, et al. (author)
  • Utopiernes suggestionskraft
  • 2003
  • In: Idealisme og fanatisme?. - 8755334008 ; , s. 15-28
  • Book chapter (other academic/artistic)
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9.
  • Savolainen, Peter, et al. (author)
  • A detailed picture of the origin of the Australian dingo, obtained from the study of mitochondrial DNA
  • 2004
  • In: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 101:33, s. 12387-12390
  • Journal article (peer-reviewed)abstract
    • To determine the origin and time of arrival to Australia of the dingo, 582 bp of the mtDNA control region were analyzed in 211 Australian dingoes sampled in all states of Australia, 676 dogs from all continents, and 38 Eurasian wolves, and 263 bp were analyzed in 19 pre-European archaeological dog samples from Polynesia. We found that all mtDNA sequences among dingoes were either identical to or differing by a single substitution from a single mtDNA type, A29. This mtDNA type, which was present in >50% of the dingoes, was found also among domestic dogs, but only in dogs from East Asia and Arctic America, whereas 18 of the 19 other types were unique to dingoes. The mean genetic distance to A29 among the dingo mtDNA sequences indicates an origin approximate to5,000 years ago. From these results a detailed scenario of the origin and history of the dingo can be derived: dingoes have an origin from domesticated dogs coming from East Asia, possibly in connection with the Austronesian expansion into Island Southeast Asia. They were introduced from a small population of dogs, possibly at a single occasion, and have since lived isolated from other dog populations.
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10.
  • Smith, Peter B., et al. (author)
  • In search of Nordic management styles
  • 2003
  • In: Scandinavian Journal of Management. - : Elsevier. - 0956-5221 .- 1873-3387. ; 19:4, s. 491-507
  • Journal article (peer-reviewed)abstract
    • Previously published studies have indicated some distinctive aspects of Nordic management. Nordic managers have been consistently reported as individualistic but also more ‘feminine’ and employee-oriented, than those further south. In the present study, the ways in which managers from the five Nordic nations describe their role are compared with descriptions provided by managers from 42 other nations. Managers from each nation were asked to describe the degree to which they relied on each of eight sources of guidance in handling a series of everyday work events. Nordic managers reported relying more on subordinates and peers and less on formal rules and superiors than did other European managers. However, marked contrasts were also found between the Nordic manager samples. Predictions are derived from the results as to the types of difficulty most likely to occur within different Nordic collaborations.
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  • Result 1-10 of 13
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journal article (9)
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peer-reviewed (10)
other academic/artistic (3)
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Young, C. (1)
Coquand, Thierry, 19 ... (1)
Dybjer, Peter, 1953 (1)
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Roos, Ewa (1)
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Smith, R (1)
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Smith, Peter (1)
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Svensson, Glenn (1)
Axelsen, Mette, 1965 (1)
Antonsson, Per (1)
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Savolainen, Peter (1)
Gallo, Katia (1)
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Bache, Iben (1)
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