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Sökning: L773:1098 9064 OR L773:0094 6176

  • Resultat 61-64 av 64
  • Föregående 123456[7]
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61.
  • Zöller, Bengt, et al. (författare)
  • Epidemiology of Familial Aggregation of Venous Thromboembolism
  • 2016
  • Ingår i: Seminars in Thrombosis and Hemostasis. - : Georg Thieme Verlag KG. - 0094-6176 .- 1098-9064. ; 42:8, s. 821-832
  • Forskningsöversikt (refereegranskat)abstract
    • Familial aggregation (clustering) of venous thromboembolism (VTE) is the clustering of VTE within a family. Though several genes, such as antithrombin, protein C, protein S, factor V, and prothrombin are associated with the familial clustering of VTE, these loci only partially explain the familial aggregation of VTE. The epidemiology of the familial aggregation of VTE exhibits typical characteristics of complex traits. The family history of VTE in first-degree relatives is associated with a two to three times increased familial relative risk (FRR). The FRR of VTE is higher in younger individuals, increases with a number of affected relatives, decreases as the familial relationship becomes more distant, increases with severity (unprovoked), and exhibits slightly stronger male transmission (Carter effect). High FRR is observed in individuals with two or more affected siblings (FRR > 50). Because familial aggregation represents the sum of shared family environmental and genetic factors, one should not assume that evidence of familial aggregation implies genetic effects. However, studies in twins, extended families, adoptees, and spouses indicate a weak involvement of shared environmental factors to the familial aggregation of VTE. Moreover, familial aggregation of VTE fulfills the Hill's criteria for causation. In conclusion, familial aggregation of VTE signals a clinically relevant inherent predisposition for VTE.
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62.
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63.
  • Bergqvist, D, et al. (författare)
  • Thromboprophylactic effect of low molecular weight heparin started in the evening before elective general abdominal surgery: a comparison with low-dose heparin
  • 1990
  • Ingår i: Seminars in Thrombosis and Hemostasis. - 1098-9064. ; 16:Suppl., s. 19-24
  • Tidskriftsartikel (refereegranskat)abstract
    • A prospective randomized double-blind trial was performed comparing conventional low-dose heparin with a LMWH fragment (Kabi 2165, Fragmin) for thromboprophylaxis in elective general abdominal surgical patients. The first dose of the fragment was given in the evening before surgery, and thereafter every evening. There were 1002 analyzable patients, 826 having received correct prophylaxis. Sixty three percent of the patients were operated on for malignant diseases. The frequency of DVT was significantly reduced among patients with correct prophylaxis with the heparin fragment (9.2 to 5.0%, p = 0.02). In patients with malignancies the reduction was from 11.2 to 6.4% (p = 0.06). The frequency of bleeding was 6.7% among the heparin fragment patients and 2.7% among the patients given conventional heparin (p = 0.01). The corresponding frequencies for patients with malignancies were 3.2 and 2.8%, respectively (p = 0.28). All bleedings were minor and of no clinical significance. Local pain at the injection site was reported significantly less often among patients with the fragment. Twenty patients died, 13 with malignant disease, mortality being the same in the two groups. It is concluded that heparin fragment administered in the evening before surgery and then every evening is a practically acceptable alternative to prevent postoperative DVT in patients undergoing elective abdominal surgery, also when the histology shows malignancy. Thus, the advantages of using LMWH compared with conventional low-dose heparin are simplified administration routines, better thromboprophylactic effect, and less local pain at injection sites. A disadvantage is the slight increase in hemorrhagic side effects, all of minor clinical importance and not seen in patients undergoing surgery for malignancy.
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64.
  • Wang, Xiao, et al. (författare)
  • Association of Circulating Long Noncoding 7S RNA with Deep Vein Thrombosis
  • 2023
  • Ingår i: Seminars in Thrombosis and Hemostasis. - 1098-9064. ; 49:7, s. 702-708
  • Tidskriftsartikel (refereegranskat)abstract
    • Mitochondrial dysfunction is a recognized factor in the pathogenesis of deep vein thrombosis (DVT). The role of 7S RNA, a long noncoding RNA that plays an important role in mitochondrial function, in DVT remains unclear. In this study, we aimed to investigate the potential use of 7S RNA as a biomarker in DVT. Plasma samples were obtained from 237 patients (aged 16-95 years) with suspected DVT recruited in a prospective multicenter management study (SCORE) where 53 patients were objectively confirmed with a diagnosis of DVT and the rest were diagnosed as non-DVT. 7S RNA was measured using quantitative real-time polymerase chain reaction in plasma samples. The plasma expression of 7S RNA was significantly lower in DVT compared with non-DVT (0.50 vs. 0.95, p = 0.043). With the linear regression analysis, we showed that the association between the plasma expression of 7S RNA and DVT (β = -0.72, p = 0.007) was independent of potential confounders. Receiver-operating characteristic curve analysis showed the area under the curve values of 0.60 for 7S RNA. The findings of the present study showed a notable association between 7S RNA and DVT. However, further investigations are needed to fully elucidate the exact role of 7S RNA in the pathophysiology of DVT and its diagnostic value.
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