scholarly journals Transcriptomic Profiling of Femoral Veins in Deep Vein Thrombosis in a Porcine Model

Cells ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1576
Author(s):  
Leszek Gromadziński ◽  
Łukasz Paukszto ◽  
Agnieszka Skowrońska ◽  
Piotr Holak ◽  
Michał Smoliński ◽  
...  
Keyword(s):  
Deep Vein Thrombosis ◽  
Porcine Model ◽  
Femoral Vein ◽  
Severe Disease ◽  
Control Group ◽  
Global Changes ◽  
High Morbidity ◽  
Clotting Factors ◽  
Vein Thrombosis ◽  
Deep Vein

Deep vein thrombosis (DVT) is a severe disease affecting the human venous system, accompanied by high morbidity and mortality rates caused by early and late complications. The study aimed at analyzing the changes in the transcriptome of the femoral vein caused by DVT in the porcine model based on the formation of the thrombus in vivo. The study was performed on 11 castrated male pigs: a thrombus was formed in each left femoral vein in six animals; the remaining five served as a control group. Total RNA was isolated from the left femoral veins of the experimental and control animals. High-throughput RNA sequencing was used to analyze the global changes in the transcriptome of veins with induced DVT. Applied multistep bioinformatics revealed 1474 differentially expressed genes (DEGs): 1019 upregulated and 455 downregulated. Functional Gene Ontology annotated 1220 of DEGs into 225 biological processes, 30 molecular functions and 40 cellular components categories. KEGG analysis disclosed TNF, NF-κB and apoptosis pathways’ overexpression in DVT samples. A thorough analysis of the detected DEGs indicated that a dysregulated inflammatory response and disturbed balance between clotting and anti-clotting factors play a crucial role in the process of DVT.

scholarly journals A New Experimental Porcine Model of Venous Thromboembolism

2021 ◽  
Vol 10 (9) ◽  
pp. 1862
Author(s):  
Leszek Gromadziński ◽  
Agnieszka Skowrońska ◽  
Piotr Holak ◽  
Michał Smoliński ◽  
Ewa Lepiarczyk ◽  
...  
Keyword(s):  
Venous Thromboembolism ◽  
Porcine Model ◽  
Femoral Vein ◽  
Severe Disease ◽  
Pulmonary Angiography ◽  
High Morbidity ◽  
Vein Thrombosis ◽  
The Right ◽  
Deep Vein

Venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE), is a severe disease affecting the human venous system, accompanied by high morbidity and mortality rates. The aim of the study was to establish a new porcine VTE model based on the formation of the thrombus in vivo. The study was performed on 10 castrated male pigs: thrombus was formed in each closed femoral vein and then successfully released from the right femoral vein into the circulation of animals. In six pigs PE was confirmed via both computed tomography pulmonary angiography and an autopsy. Our research presents a novel experimental porcine model of VTE that involves inducing DVT and PE in the same animal in vivo, making it suitable for advanced clinical research and testing of future therapies.

Deep Vein Thrombosis and Fibrinolysis

1991 ◽  
Vol 66 (04) ◽  
pp. 426-429 ◽  
Author(s):  
Marcel Levi ◽  
Anthonie W A Lensing ◽  
Harry R Büller ◽  
Paolo Prandoni ◽  
Gerard Dooijewaard ◽  
...  
Keyword(s):  
Deep Vein Thrombosis ◽  
Plasminogen Activator ◽  
Plasminogen Activator Inhibitor ◽  
Tissue Type ◽  
Controlled Study ◽  
First Episode ◽  
Control Group ◽  
Vein Thrombosis ◽  
Type Plasminogen Activator ◽  
Deep Vein

SummaryIn the present study 57 consecutive patients with a first episode of venographically proven deep vein thrombosis were investigated to evaluate the release of tissue-type plasminogen activator (t-PA) and of urokinase-type plasminogen activator (u-PA) in response to DDAVP stimulation as well as the resting plasminogen activator inhibitor (PAI) concentration, comparing this to the results obtained in 66 similar patients with a clinical suspicion of thrombosis but with a normal venogram. All assays were performed without knowledge of the patient's status.Four patients in the deep vein thrombosis-group (7%) had an absent u-PA antigen response upon DDAVP infusion, while a normal response was observed in all control subjects. Patients and controls showed similar increases in t-PA antigen level upon DDAVP. High resting PAI antigen levels were encountered in 5 patients in the deep vein thrombosis-group (9%) and in 6 subjects in the control group (9%).The results from this controlled study indicate that a defective release of u-PA may occur in patients with deep vein thrombosis and may have pathogenetic significance. Furthermore it is concluded that elevation of PAI levels cannot be considered as a specific risk factor for venous thrombosis.

Controlled Trial of the Sequential Use of Streptokinase and Ancrod in the Treatment of Deep Vein Thrombosis of Lower Limb

1977 ◽  
Vol 37 (02) ◽  
pp. 222-232 ◽  
Author(s):  
D. A Tibbutt ◽  
C. N Chesterman ◽  
E. W Williams ◽  
T Faulkner ◽  
A. A Sharp
Keyword(s):  
Deep Vein Thrombosis ◽  
Clinical Improvement ◽  
Anticoagulant Therapy ◽  
Lower Limb ◽  
Oral Anticoagulant ◽  
Controlled Trial ◽  
Oral Anticoagulant Therapy ◽  
Control Group ◽  
Vein Thrombosis ◽  
Deep Vein

SummaryTreatment with streptokinase (‘Kabikinase’) was given to 26 patients with venographically confirmed deep vein thrombosis extending into the popliteal vein or above. Treatment was continued for 4 days and the patients were allocated randomly to oral anticoagulant therapy or a course of treatment with ancrod (‘Arvin’) for 6 days followed by oral anticoagulant therapy. The degree of thrombolysis as judged by further venographic examination at 10 days was not significantly different between the 2 groups. The majority of patients showed clinical improvement but there was no appreciable difference between the groups at 3 and 6 months. Haemorrhagic complications were a more serious problem during the period of treatment with ancrod than during the equivalent period in the control group.

Low-Dose Heparin and Deep-Vein Thrombosis after Total Hip Replacement

1976 ◽  
Vol 36 (01) ◽  
pp. 157-164 ◽  
Author(s):  
P. M Mannucci ◽  
Luisa E. Citterio ◽  
N Panajotopoulos
Keyword(s):  
Deep Vein Thrombosis ◽  
Total Hip Replacement ◽  
Hip Replacement ◽  
Low Dose ◽  
Control Group ◽  
Total Hip ◽  
Vein Thrombosis ◽  
Dose Heparin ◽  
Deep Vein ◽  
Low Dose Heparin

SummaryThe effect of subcutaneous low-dose heparin on postoperative deep-vein thrombosis (D. V. T.) (diagnosed by the 125I-labelled fibrinogen test) has been investigated in a trial of 143 patients undergoing the operation of total hip replacement. Two randomized studies were carried out: in one the scanning for D.V.T. was carried out daily for 7 days post operatively and in the other for 15 days. In both, the incidence of D.V.T. was significantly lower in the heparin-treated patients (P<0.005). Bilateral D.V.T. was also prevented (P<0.05), through the extension of D.V.T. to the distal veins of the thigh was not significantly reduced. Heparin treatment was, however, followed by a higher incidence of severe postoperative bleeding (P< 0.02) and wound haematoma formation (P< 0.005), and the postoperative haemoglobin was significantly lower than in the control group (P<0.005). A higher number of transfused blood units was also needed by the heparin treated patients (P<0.001).

A murine model of deep vein thrombosis Characterization and validation in transgenic mice

2005 ◽  
Vol 94 (09) ◽  
pp. 498-503 ◽  
Author(s):  
Linda Szema ◽  
Chao-Ying Chen ◽  
Jeffrey P. Schwab ◽  
Gregory Schmeling ◽  
Brian C. Cooley
Keyword(s):  
Deep Vein Thrombosis ◽  
Murine Model ◽  
Femoral Vein ◽  
Previous History ◽  
Bed Rest ◽  
Major Surgery ◽  
Vein Thrombosis ◽  
Transgenic Lines ◽  
History Of ◽  
Deep Vein

SummaryDeep vein thrombosis (DVT) occurs with high prevalence in association with a number of risk factors, including major surgery, trauma, obesity, bed rest (>5 days), cancer, a previous history of DVT, and several predisposing prothrombotic mutations. A novel murine model of DVT was developed for applications to preclinical studies of transgenically constructed prothrombotic lines and evaluation of new antithrombotic therapies. A transient direct-current electrical injury was induced in the common femoral vein of adult C57Bl/6 mice. A non-occlusive thrombus grew, peaking in size at 30 min, and regressing by 60 min, as revealed by histomorphometric volume reconstruction of the clot. Pre-heparinization greatly reduced clot formation at 10, 30, and 60 min (p<0.01 versus non-heparinized). Homozygous FactorV Leiden mice (analogous to the clinical FactorV Leiden prothrombotic mutation) on a C57Bl/6 background had clot volumes more than twice those of wild-types at 30 min (0.121±0.018 mm3 vs. 0.052±0.008 mm3, respectively; p<0.01). Scanning electron microscopy revealed a clot surface dominated by fibrin strands, in contrast to arterial thrombi which showed a platelet-dominated structure. This new model of DVT presents a quantifiable approach for evaluating thrombosis-related murine transgenic lines and for comparatively evaluating new pharmacologic approaches for prevention of DVT.

scholarly journals INVESTIGATING EFFECT OF NURSING INTERVENTIONS, BASED ON WELLS SCORE RESULTS, ON THE INCIDENCE OF DEEP VEIN THROMBOSIS IN PATIENTS ADMITTED TO THE INTENSIVE CARE UNIT

2018 ◽  
Vol 11 (5) ◽  
pp. 377
Author(s):  
Morteza Habibi Moghadam ◽  
Marzieh Asadizaker ◽  
Simin Jahani ◽  
Elham Maraghi ◽  
Hakimeh Saadatifar ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Deep Vein Thrombosis ◽  
Intervention Group ◽  
Control Group ◽  
Nursing Interventions ◽  
Vein Thrombosis ◽  
Wells Score ◽  
Deep Vein ◽  
Pitting Edema

 Objective: Venous thromboembolism, including deep vein thrombosis (DVT) and pulmonary embolism (PE), is a common complaint in critically ill patients. Therefore, the present study was conducted to determine the effect of nursing interventions, based on the Wells results, on the incidence of DVT in intensive care unit (ICU) patients.Methods: The present clinical trial was conducted on 72 ICU patients without DVT and PE who met the inclusion criteria according to Wells score in Dr. Ganjavian Hospital, Dezful in 2012. The participants were investigated and randomly divided into intervention (n=36) and control groups (n=36). The intervention group received preventive nursing measures based on the risk level determined by the Wells score, and routine therapeutic interventions were performed for the control group. Then, patients were evaluated using Wells score, D-dimer testing, and Doppler sonography on the 1st, 5th, and 10th days. Data were finally coded and entered into SPSS version 23. Data analysis was performed using Chi-square, Fisher’s exact, and Mann–Whitney U tests.Results: The incidence of DVT in both groups showed that 2 patients of the control group who were identified to be at risk using the Wells score were diagnosed with DVT while none of the patients of the intervention group experienced DVT. The present study showed that 22.2% of the patients of the control group suffered from non-pitting edema, which was significantly different from the intervention group (p=0.005).Conclusion: The results of the present study showed that using the Wells score for early identification of the at-risk patients and nursing interventions based on this score’s results is helpful in the prevention of DVT. Appropriate nursing interventions were also effective in reducing the incidence of non-pitting edema in the lower extremities.

The Use of Low Molecular Weight Heparins for Post-Surgical Deep Vein Thrombosis Prevention in Orthopaedic Patients

1988 ◽  
Vol 16 (5) ◽  
pp. 359-366 ◽  
Author(s):  
E. Chiapuzzo ◽  
G. B. Orengo ◽  
G. Ottria ◽  
A. Chiapuzzo ◽  
E. Palazzini ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Deep Vein Thrombosis ◽  
Low Molecular Weight Heparin ◽  
Control Group ◽  
Low Molecular Weight ◽  
Factor X ◽  
Vein Thrombosis ◽  
Orthopaedic Patients ◽  
Antithrombotic Efficacy ◽  
Deep Vein

The prophylactic antithrombotic efficacy of a low molecular weight heparin was compared with a traditional unfractionated calcium heparin after orthopaedic surgery in 140 patients. Deep vein thromboses were detected in legs either by Doppler sonography or [125I]fibrinogen uptake tests in five (7.1%) and seven (10%) patients, respectively. The capacity of both drugs to prevent deep vein thrombosis was demonstrated. Compared with the control group, those who used low molecular weight heparin showed a significant increase of activated factor X inhibition and smaller increases in activated partial thromboplastin times. Tolerability of both drugs was good, with a low incidence of local side-effects.

Advantages of a Sequential Compression Device in Prevention of Deep Vein Thrombosis

1979 ◽  
Author(s):  
A.N. Nicolaides ◽  
J. Fernandas ◽  
A.V. Pollock
Keyword(s):  
Deep Vein Thrombosis ◽  
Femoral Vein ◽  
Test Group ◽  
Heparin Group ◽  
Similar Time ◽  
Vein Thrombosis ◽  
Compression Device ◽  
Fibrinogen Test ◽  
Group B ◽  
Deep Vein

A sequential compression device (SCD) (6 chambers) compressing the ankle, calf end thigh sequentially at 35, 30 and 20 mm Hg for 12 seconds in every minute produced a 240% increase in peak velocity in the femoral vein. A non-sequential device (NSD) inflated to 25 mm Hg with a similar time cycle produced only an 180% increase in blood velocity.The two devices were tested clinically; 250 surgical patients were randomised to 3 groups scanned with the 125 I-fibrinogen test. Group A: 7 days subcutaneous heparin. Group B: NSD for 24 hours. Group C: SCD for 24 hours. The SCD was found to be as effective as heparin during the period it was used and more effective than NSD in preventing deep vein thrombosis proximal to the calf.

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