scholarly journals A Study of the Asphctic Newborn Related to Hypercoagulability by Determination of Soluble Fibrin Monomer Complex (SFMC) and Plasmin Inhibitor

1977 ◽  
Author(s):  
S. Susuki ◽  
H. Graeff ◽  
R. Hafter
Keyword(s):  
Partial Thromboplastin Time ◽  
Antithrombin Iii ◽  
Gel Filtration ◽  
Newborn Infants ◽  
Agarose Gel ◽  
Significant Difference ◽  
Plasmin Inhibitors ◽  
Plasmin Inhibitor ◽  
Fibrinogen Content

Gordblood samples from 80 healthy newborns and 19 asphyctic newborns were examined. SFMG and fibrinogen were precipitated from plasma with β-alanine.Agarose gel filtration of redissolved precipitate resulted in separation of SFMC and fibrinogen. Other parameters such as TEG, Prothrombin time (PT), Partial thromboplastin time (PTT), and Plasmin-inhibitors (α2-macrogloblin, α1-antitrypsin, antithrombin III)were also determined. (Results)(1) The percent amount of SFMC of total fibrinogen content in asphyctic newborn increased 4.73 ± 1.55%, while the remaining normal infants showed only 3.17 ± 0.55% (P < 0.05)(2) In neither PT nor PTT can a significant difference be seen, although asphyctic newborn showed the tendency of hypercoagulability in TEG.(3) α1-antitrypsin (92.8 ± 21.5)and antithrombin III(8.4 ± 2.3) levels were much lower in the group with asphyxia.These results indicate that a low level of Plasmin-inhibitors act synergestically with a high activator value.The low antithrombin III level in particular could be one of the reason for the development Hypercoagulability and DIC in asphyctic newborn infants.

THROMBOSIS RISK FACTORS IN CARDIOVASCULAR SURGERY IN CHILDREN AND ADULTS

1987 ◽  
Author(s):  
A Philapitsch ◽  
S Ponov ◽  
P G Kirchhoff ◽  
E Urban ◽  
K Anderle ◽  
...  
Keyword(s):  
Protein C ◽  
Cardiovascular Surgery ◽  
Antithrombin Iii ◽  
Significant Rise ◽  
Thrombosis Risk ◽  
Significant Difference ◽  
At Iii ◽  
Adults And Children ◽  
Esterase Inhibitor

Antithrombin III (AT-III) and protein C (PC) deficiencies are knoi/n to be associated v/ith a major risk of thrombosis. Before, during and after cardiovascular surgery (CS) AT-III end PC were investigated in plasma samples obtained within the framework of a randomised Cl-esterase inhibitor (Cl-INH)-c.pro-tinin-placebo study in adults undergoing extracornoreel circulation (ECC), and children subjected to ECC and treated with aprotinin. Determination of AT-III and PC activity gave the following results:AT-III: Preoperative values in adults (n = 25) and children (r: = 11) were normal amounting to a median of 92 % and 10C %, res; actively. In adults a steady decrease in AT-III without any difference between the 3 groups occurred durinc ECC rntil the 1st postoperative (po) day where AT-III had faller: to CC % (median). In children the same decrease was observed duri;r ECC, however, after termination of ECC AT-III increased until normal on the 1st day po (median = 85 %) and this difference between adults and children is significant at a p of 0.019.Protein C: Median preoperative values in adults (n = 45) were 111 %, while in children (n = 11) only 48 % were found. During and after surgery in children there was no change in PC, while significant differences were found between the 3 adult groups. In the placebo group and the aprotinin group PC fell to 69 % (median) and 86 % (median), respectively, on the 1st day po. However, in the group receiving CI-INH Concentrate (Immeno) PC increased up to 136 % and only after discontinuation of treat; a-r.t decreased to 92 % (median). The significant rise in PC ir. the CI-INH group is explained by the content of PC in the CI-IMII Concentrate. These findings are indicative of a significant difference in the behaviour of AT-III and PC in children and adults, and suggest that the administration of CI-INH Concentrate may reduce the risk of thrombosis associated with ECC.

scholarly journals ACTIVATED PARTIAL THROMBOPLASTIN TIME AND FIBRINOGEN IN PEDIATRIC NEPHROTIC SYNDROME DURING RELAPSE AND REMISSION

2018 ◽  
Vol 24 (3) ◽  
pp. 272
Author(s):  
Trianita Tarigan ◽  
Adi Koesoema Aman ◽  
Oke Rina Ramayani
Keyword(s):  
Nephrotic Syndrome ◽  
Kidney Disease ◽  
Partial Thromboplastin Time ◽  
Patient Experiences ◽  
Activated Partial Thromboplastin Time ◽  
High Cholesterol ◽  
Significant Difference ◽  
Patients At Risk ◽  
Males And Females ◽  
Fibrinogen Content

         Nephrotic Syndrome (NS) is a complicated kidney disease disorder, one of the most important complications is thromboembolism which can affect the circulation, either arterial or venous in both pediatric and adult patients. Patients at risk of thromboembolism should have an angiography examination for diagnosis. There have been several studies conducted on patients with a nephrotic syndrome showing the risk of thromboembolism. This study included twelve patient of pediatric nephrotic syndrome consisting of males and females. The patient experiences a period of relapse and became a remission. Patients participating in the study were 3 to 17 years old. There were significant differences in fibrinogen in which the fibrinogen content of NS patients in children at relapse was higher compared with the time of remission (390.08 ± 164.87 vs. 273.17 ± 150.56; p=0.042). There was no significant difference in Activated Partial Thromboplastin Time (APTT) results in SN patients in relapse compared to remission (34.17 ± 5.65 vs. 30.08 ± 8.49; p=0.236). The high levels of fibrinogen in the relapse period indicate the presence of hypercoagulable state, along with other examinations such as high cholesterol and low albumin. In this study, there was no significant difference in APTT among SN patients during relapse compared with remission while in the fibrinogen examination a significant difference was found. Therefore, fibrinogen examination is important to be analyzed in order to avoid SN complications. 

Immunoreactivity of Tissue Plasminogen Activator and of Its Inhibitor Complexes

1989 ◽  
Vol 61 (03) ◽  
pp. 409-414 ◽  
Author(s):  
M Rånby ◽  
G Nguyen ◽  
P Y Scarabin ◽  
M Samama
Keyword(s):  
Plasminogen Activator ◽  
Tissue Plasminogen Activator ◽  
Degradation Products ◽  
Gel Filtration ◽  
Free Form ◽  
Enzyme Linked Immunosorbent Assay ◽  
Plasma Samples ◽  
Significant Difference ◽  
Tissue Plasminogen ◽  
Pai 1

SummaryAn enzyme linked immunosorbent assay (ELISA) based on goat polyclonal antibodies against human tissue plasminogen activator (tPA) was evaluated. The relative immunoreactivity of tPA in free form and tPA in complex with inhibitors was estimated by ELISA and found to be 100, 74, 94, 92 and 8l% for free tPA and tPA in complex with PAI-1, PAI-2, α2-antiplasmin and C1-inhibitor, respectively. Addition of tPA to PAI-1 rich plasma resulted in rapid and total loss of tPA activity without detectable loss of ELISA response, indicating an immunoreactivity of tPA in tPA/PAI-1 complex of about l00%. Three different treatments of citrated plasma samples (acidification/reneutralization, addition of 5 mM EDTA or of 0.5 M lysine) prior to determination by ELISA all resulted in increased tPA levels. The fact that the increase was equally large in all three cases along with good analytical recovery of tPA added to plasffi, supported the notion that all tPA antigen present in plasma samples is measured by the ELISA. Analysis by ELISA of fractions obtained by gel filtration of plasma from a patient undergoing tPA treatment identified tPA/inhibitor complexes and free tPA but no low molecular weight degradation products of tPA. Determinations of tPA antigen were made at seven French clinical laboratories on coded and randomized plasma samples with known tPA antigen content. For undiluted samples there was no significant difference between the tPA levels found and those known to be present. The between-assay coefficient of variation was 7 to 10%. In conclusion, the ELISA appeared suited for determination of total tPA antigen in human plasma samples.

Immunologic Studies of Antithrombin III Heparin Cofactor in the Newborn

1978 ◽  
Vol 39 (03) ◽  
pp. 624-630 ◽  
Author(s):  
W E Hathaway ◽  
L L Neumann ◽  
C A Borden ◽  
L J Jacobson
Keyword(s):  
Gestational Age ◽  
Antithrombin Iii ◽  
Newborn Infants ◽  
Term Infant ◽  
Sick Newborn ◽  
At Iii ◽  
Thrombotic Complications ◽  
Low Levels ◽  
Collection Methods ◽  
Made In

SummarySerial quantitative immunoelectrophoretic (IE) measurements of antithrombin III heparin cofactor (AT III) were made in groups of well and sick newborn infants classified by gestational age. Collection methods (venous vs. capillary) did not influence the results; serum IE measurements were comparable to AT III activity by a clotting method. AT III is gestational age-dependent, increasing from 28.7% of normal adult values at 28-32 weeks to 50.9% at 37-40 weeks, and shows a gradual increase to term infant levels (57.4%) by 3-4 weeks of age. Infants with the respiratory distress syndrome (RDS) show lower levels of AT III in the 33-36 week group, 22% vs. 44% and in the 37-40 week group, 33.6% vs. 50.9%, than prematures without RDS. Infants of 28-32 week gestational age had only slight differences, RDS = 24%, non-RDS = 28.7%. The lowest levels of AT III were seen in patients with RDS complicated by disseminated intravascular coagulation and those with necrotizing enterocolitis. Crossed IE on representative infants displayed a consistent pattern which was identical to adult controls except for appropriate decreases in the amplitude of the peaks. The thrombotic complications seen in the sick preterm infant may be related to the low levels of AT III.

Is Quantitative Determination of Fibrin(ogen) Degradation Products and Thrombin-Antithrombin III Complexes Useful to Diagnose Deep Venous Thrombosis in Outpatients?

1989 ◽  
Vol 62 (04) ◽  
pp. 1043-1045 ◽  
Author(s):  
Paul F M M van Bergen ◽  
Eduard A R Knot ◽  
Jan J C Jonker ◽  
Auke C de Boer ◽  
Moniek P M de Maat
Keyword(s):  
Quantitative Determination ◽  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Antithrombin Iii ◽  
Degradation Products ◽  
Family Doctor ◽  
Diagnostic Value ◽  
Impedance Plethysmography ◽  
Fibrin Degradation Products

SummaryWe studied the diagnostic value of recently introduced ELISA’s for the determination of thrombin-antithrombin III (TAT) complexes, fibrin degradation products (FbDP), fibrinogen degradation products (FgDP) and total degradation products (TDP) for deep venous thrombosis (DVT) in plasma of 239 consecutive outpatients, suspected for DVT by their family doctor. DVT was confirmed by impedance plethysmography in 60 patients. Using the 95th percentile range of 42 healthy volunteers the sensitivity for the detection of DVT was: 37% for TAT, 95% for TDP, 92% for FbDP and 90% for FgDP. Specificity was: 88% for TAT, 16% for TDP, 20% for FbDP and 25% for FgDP.We conclude that these assays are of little value in the diagnosis of DVT in outpatients.

Studies on an Inhibitor of Plasminogen Activation in Human Serum

1973 ◽  
Vol 30 (02) ◽  
pp. 414-424 ◽  
Author(s):  
Ulla Hedner
Keyword(s):  
Ion Exchange ◽  
Human Serum ◽  
Antithrombin Iii ◽  
Gel Filtration ◽  
Ion Exchange Chromatography ◽  
Exchange Chromatography ◽  
Specific Adsorption ◽  
Partial Purification ◽  
Plasminogen Activation ◽  
Preparative Electrophoresis

SummaryA procedure is described for partial purification of an inhibitor of the activation of plasminogen by urokinase and streptokinase. The method involves specific adsorption of contammants, ion-exchange chromatography on DEAE-Sephadex, gel filtration on Sephadex G-200 and preparative electrophoresis. The inhibitor fraction contained no antiplasmin, no plasminogen, no α1-antitrypsin, no antithrombin-III and was shown not to be α2 M or inter-α-inhibitor. It contained traces of prothrombin and cerulo-plasmin. An antiserum against the inhibitor fraction capable of neutralising the inhibitor in serum was raised in rabbits.

Detection of Circulating Tissue Factor and Factor VII in a Normal Population

1996 ◽  
Vol 75 (05) ◽  
pp. 772-777 ◽  
Author(s):  
Sybille Albrecht ◽  
Matthias Kotzsch ◽  
Gabriele Siegert ◽  
Thomas Luther ◽  
Heinz Großmann ◽  
...  
Keyword(s):  
Tissue Factor ◽  
Normal Population ◽  
Mean Value ◽  
Factor Vii ◽  
Significant Difference ◽  
Age Dependent ◽  
The Mean ◽  
Highly Correlated ◽  
And Gender

SummaryThe plasma tissue factor (TF) concentration was correlated to factor VII concentration (FVIIag) and factor VII activity (FVIIc) in 498 healthy volunteers ranging in age from 17 to 64 years. Immunoassays using monoclonal antibodies (mAbs) were developed for the determination of TF and FVIIag in plasma. The mAbs and the test systems were characterized. The mean value of the TF concentration was 172 ± 135 pg/ml. TF showed no age- and gender-related differences. For the total population, FVIIc, determined by a clotting test, was 110 ± 15% and the factor VIlag was 0.77 ± 0.19 μg/ml. FVII activity was significantly increased with age, whereas the concentration demonstrated no correlation to age in this population. FVII concentration is highly correlated with the activity as measured by clotting assay using rabbit thromboplastin. The ratio between FVIIc and FVIIag was not age-dependent, but demonstrated a significant difference between men and women. Between TF and FVII we could not detect a correlation.

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