scholarly journals Continuous Active State of Coagulation System in Patients With Nonthrombotic Inflammatory Bowel Disease

2011 ◽  
Vol 17 (6) ◽  
pp. 600-604 ◽  
Author(s):  
Huseyin Alkim ◽  
Selime Ayaz ◽  
Canan Alkim ◽  
Aysel Ulker ◽  
Burhan Sahin

This study was planned for searching possible changes of the total coagulation and fibrinolysis system in inflammatory bowel disease (IBD) in order to obtain some clues for explaining the relation between IBD and hypercoagulability. A total of 24 patients with ulcerative colitis, 12 patients with Crohn disease, and 20 healthy controls were studied. Platelets; prothrombin time (PT); partial thromboplastin time (PTT); fibrinogen; d-dimer; fibrinogen degradation products; protein C; protein S; antithrombin; thrombin time; von Willebrand factor; coagulation factors V, VII, VIII, IX, XI, and XIII; plasminogen; antiplasmin; tissue plasminogen activator; plasminogen activator inhibitor 1; and prothrombin fragments 1 + 2 were studied. Most of the procoagulants (platelets, fibrinogen, von Willebrand factor, coagulation factor IX, and plasminogen activator inhibitor 1) were found increased together with decreases in some anticoagulants (protein S and antithrombin) in IBD. Also the activation markers of coagulation (d-dimer, fibrinogen degradation products, and prothrombin fragments 1 + 2) were all increased. The parameters of the total coagulation–fibrinolysis system were increased in IBD, regardless of the form and the activity of the disease.

2019 ◽  
pp. 409-418
Author(s):  
D. KARASEK ◽  
J. SPURNA ◽  
V. KUBICKOVA ◽  
O. KRYSTYNIK ◽  
L. CIBICKOVA ◽  
...  

To compare circulating pigment epithelium derived factor (PEDF) levels in type 2 diabetes patients (T2D) with and without metabolic syndrome (MetS+/-) to healthy controls and assess PEDF association with plasminogen activator inhibitor-1 (PAI-1) and von Willebrand factor (vWF) as markers of endothelial dysfunction. Fifty T2D individuals and forty healthy controls were included. PEDF, PAI-1, vWF, anthropological parameters, lipids, and markers of insulin resistance were investigated in all subjects. Compared to controls only MetS+ diabetics had higher PEDF levels [14.2 (10.2-16.0) mg/l vs. 11.1 (8.6-14.4) mg/l; p<0.05]. PEDF significantly correlated: positively with body mass index (ρ=0.25), smoking (ρ=0.21), C-reactive protein (ρ=0.22), triglycerides (ρ=0.38), non-HDL-cholesterol (ρ=0.39), apolipoprotein B (ρ=0.38), fasting glucose (ρ=0.22), glycated hemoglobin (ρ=0.24), C-peptide (ρ=0.28), insulin (ρ=0.26); and negatively with HDL-cholesterol (ρ=-0.42) and apolipoprotein A1 (ρ=-0.27). Independent association of PEDF with vWF in T2DMetS- subjects was found. Significantly elevated PEDF in T2DMet+ patients and its association with adverse metabolic profile confirmed PEDF as a marker of insulin resistance. Negative independent association of PEDF with vWF in T2DMetS- patients may reveal its angio-protective role.


Author(s):  
Fathelrahman M Hassan

Objective: The objective of this study was to determine the fibrinolytic alteration associated with daily administration of sildenafil.Methods: A total of 12 adult male rabbits without mortality rate had been fed standard and subdivided into four groups; their average weight was 1.5, 2.5, 1.9, and 2 kg randomly selected during the period of March 2012–July 2013. Depending on weight, the control groups (2.25 mg/1.5 kg day) and sildenafil groups (3 mg/2 kg/day, 2.85 mg/1.9 kg/day, and 1.7 mg/2.5 kg/day) were injected by normal saline and sildenafil concentration, respectively to create four groups, every group was composed of three rabbits; saline rabbit (control group, n=3) and sildenafil rabbits (sildenafil group, n=9). All rabbit’s plasma samples have been investigated for prothrombin time, activated partial thromboplastin time, fibrinogen, plasminogen activator inhibitor-1 (PAI-1), prothrombin fragment 1+2, tissues plasminogen activator (tPA), plasmin antiplasmin (PAP), plasminogen, and D-dimer after 24 h of administration.Results: The PAP level was significantly (p<0.05) decreased following sildenafil injection. Sildenafil-injected (3 mg/ml) rabbits had decreased the means of PAI-1 and mean tPA, as early as 1-day post-injection, with a considerable lower PAP first determined 3 days after injection that continued into each rabbit 2 and 3.Conclusion: Better strategies are to initiate and manipulate this drug ought to reduce the chance of each thrombosis and hemorrhage, at the same time as minimizing the need for laboratory monitoring with the aid of the use of PAI-1, tPA, and PAP checks.


2020 ◽  
Vol 59 (8) ◽  
pp. 3581-3590 ◽  
Author(s):  
Urban Alehagen ◽  
J. Alexander ◽  
J. Aaseth ◽  
A. Larsson ◽  
T. L. Lindahl

Abstract Purpose Endothelial dysfunction and inflammation are conditions which fuel atherosclerosis and ischaemic heart disease. We have previously reported reduced cardiovascular (CV) mortality following supplementation with selenium and coenzyme Q10 to 443 elderly individuals with low selenium status (mean 67 μg/L) for 4 years. Here, we wanted to evaluate a possible association between the supplementation and the plasma concentrations of the von Willebrand factor (vWf), and the plasminogen activator inhibitor-1 (PAI-1), as they, besides other functions, are also strongly associated with endothelial function. Methods In this sub-study, 308 individuals (active substance: 157, placebo: 151) were included. Blood samples were drawn after 6 and 36 months and vWf and PAI-1 were determined in plasma by ELISA. Changes in concentrations of the biomarkers were evaluated by the use of T tests, repeated measures of variance, and ANCOVA analyses. Results The active treatment group presented a lower level of vWf after 36 months compared with the placebo group (1.08 U/mL vs. 5.10 U/mL; p = 0.0007). The results were validated through the repeated measures of variance evaluation. The PAI-1 levels showed an equally significant decrease in the active group (26.2 ng/mL vs. 49.2 ng/mL; p = 0.0002) and were also validated through repeated measures of variance evaluation. Conclusion In this sub-study on elderly receiving selenium and coenzyme Q10, or placebo we found significantly lower levels of vWf and PAI-1 in the active treatment group as compared to the placebo group. We interpret this as a better endothelial function because of the intervention, which accords with a previous finding of reduced CV mortality.


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