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Letteratura scientifica selezionata sul tema "Heparin"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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Articoli di riviste sul tema "Heparin"

1

Zvibel, I., E. Halay, and L. M. Reid. "Heparin and hormonal regulation of mRNA synthesis and abundance of autocrine growth factors: relevance to clonal growth of tumors." Molecular and Cellular Biology 11, no. 1 (1991): 108–16. http://dx.doi.org/10.1128/mcb.11.1.108-116.1991.

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Abstract (sommario):

Highly sulfated, heparinlike species of heparan sulfate proteoglycans, with heparinlike glycosaminoglycan chains, are extracellular matrix components that are plasma membrane bound in growth-arrested liver cells. Heparins were found to inhibit the growth and lower the clonal growth efficiency of HepG2, a minimally deviant, human hepatoma cell line. Heparan sulfates, closely related glycosaminoglycans present in the extracellular matrix around growing liver cells, had no effect on the growth rate or clonal growth efficiency of HepG2 cells. Neither heparins nor heparan sulfates had any effect on

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2

Zvibel, I., E. Halay, and L. M. Reid. "Heparin and hormonal regulation of mRNA synthesis and abundance of autocrine growth factors: relevance to clonal growth of tumors." Molecular and Cellular Biology 11, no. 1 (1991): 108–16. http://dx.doi.org/10.1128/mcb.11.1.108.

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Abstract (sommario):

Highly sulfated, heparinlike species of heparan sulfate proteoglycans, with heparinlike glycosaminoglycan chains, are extracellular matrix components that are plasma membrane bound in growth-arrested liver cells. Heparins were found to inhibit the growth and lower the clonal growth efficiency of HepG2, a minimally deviant, human hepatoma cell line. Heparan sulfates, closely related glycosaminoglycans present in the extracellular matrix around growing liver cells, had no effect on the growth rate or clonal growth efficiency of HepG2 cells. Neither heparins nor heparan sulfates had any effect on

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3

Bar-Ner, M., A. Eldor, L. Wasserman, et al. "Inhibition of heparanase-mediated degradation of extracellular matrix heparan sulfate by non-anticoagulant heparin species." Blood 70, no. 2 (1987): 551–57. http://dx.doi.org/10.1182/blood.v70.2.551.551.

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Abstract Incubation of human platelets, human neutrophils, or highly metastatic mouse lymphoma cells with sulfate-labeled extracellular matrix (ECM) results in heparanase-mediated release of labeled heparan sulfate cleavage fragments (0.5 less than Kav less than 0.85 on Sepharose 6B). This degradation was inhibited by native heparin both when brought about by intact cells or their released heparanase activity. Degradation of heparan sulfate in ECM may facilitate invasion of normal and malignant cells through basement membranes. The present study tested the heparanase inhibitory effect of nonan

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4

Bar-Ner, M., A. Eldor, L. Wasserman, et al. "Inhibition of heparanase-mediated degradation of extracellular matrix heparan sulfate by non-anticoagulant heparin species." Blood 70, no. 2 (1987): 551–57. http://dx.doi.org/10.1182/blood.v70.2.551.bloodjournal702551.

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Abstract (sommario):

Incubation of human platelets, human neutrophils, or highly metastatic mouse lymphoma cells with sulfate-labeled extracellular matrix (ECM) results in heparanase-mediated release of labeled heparan sulfate cleavage fragments (0.5 less than Kav less than 0.85 on Sepharose 6B). This degradation was inhibited by native heparin both when brought about by intact cells or their released heparanase activity. Degradation of heparan sulfate in ECM may facilitate invasion of normal and malignant cells through basement membranes. The present study tested the heparanase inhibitory effect of nonanticoagula

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5

Fareed, Jawed, Adrian Sonevytsky, Omer Iqbal, Walter P. Jeske, Massimo Iacobelli, and Debra Hoppensteadt. "Inhibition of Heparinase I by Defibrotide with Potential Clinical Implications." Blood 108, no. 11 (2006): 1626. http://dx.doi.org/10.1182/blood.v108.11.1626.1626.

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Abstract Defibrotide represents a poly-deoxyribonucleotide derived antischemic and antithrombotic agent. Currently this agent is used for the management of transplantation associated with vascular complications. Defibrotide is a polyanionic electrolyte capable of releasing endogenous antithrombotic mediators such as (tissue factor pathway inhibitor (TFPI) and heparans. Co-administration of defibrotide with heparin has been shown to produce an augmentation of the effect of heparin and an increase in the biologic half-life. This may be due to the drug interactions or inhibition of endogenous hep

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6

Pinhal, Maria A. S., Isabel A. N. Santos, Irani F. Silva, Carl P. Dietrich, and Helena B. Nader. "Minimum Fragments of the Heparin Molecule Able to Produce the Accumulation and Change of the Sulfation Pattern of an Antithrombotic Heparan Sulfate from Endothelial Cells." Thrombosis and Haemostasis 74, no. 04 (1995): 1169–74. http://dx.doi.org/10.1055/s-0038-1649898.

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SummaryHeparin and low molecular weight heparins stimulate two to three fold the accumulation of an antithrombotic heparan sulfate secreted by endothelial cells in culture. This led us to search for the minimum structural requirements of the heparin molecule able to elicit the enhancement of the heparan sulfate. Fragments were prepared from heparin by degradation with bacterial heparinase and heparitinases. A heparin pentasulfated tetrasaccharide was shown to be the minimum structural sequence able to enhance two to three fold the secretion of heparan sulfate by endothelial cells. The stimulat

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7

Hovingh, P., M. Piepkorn, and A. Linker. "Biological implications of the structural, antithrombin affinity and anticoagulant activity relationships among vertebrate heparins and heparan sulphates." Biochemical Journal 237, no. 2 (1986): 573–81. http://dx.doi.org/10.1042/bj2370573.

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We analysed the distribution, structural characteristics, antithrombin-III-binding properties and anticoagulant activities of heparins and heparan sulphates isolated from the tissues of a wide range of vertebrates. Heparin has a curiously limited distribution, since it was absent from lower aquatic vertebrate species, present in only certain organs such as intestine in many higher vertebrates, and completely absent from the rabbit among mammals examined. The heparins were structurally diverse, and they exhibited a broad range of anticoagulant activities, from approx. 50% to 150% of average com

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8

Sieme, Daniel, Christian Griesinger, and Nasrollah Rezaei-Ghaleh. "Metal Binding to Sodium Heparin Monitored by Quadrupolar NMR." International Journal of Molecular Sciences 23, no. 21 (2022): 13185. http://dx.doi.org/10.3390/ijms232113185.

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Abstract (sommario):

Heparins and heparan sulfate polysaccharides are negatively charged glycosaminoglycans and play important roles in cell-to-matrix and cell-to-cell signaling processes. Metal ion binding to heparins alters the conformation of heparins and influences their function. Various experimental techniques have been used to investigate metal ion-heparin interactions, frequently with inconsistent results. Exploiting the quadrupolar 23Na nucleus, we herein develop a 23Na NMR-based competition assay and monitor the binding of divalent Ca2+ and Mg2+ and trivalent Al3+ metal ions to sodium heparin and the con

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9

Diamond, M. S., R. Alon, C. A. Parkos, M. T. Quinn, and T. A. Springer. "Heparin is an adhesive ligand for the leukocyte integrin Mac-1 (CD11b/CD1)." Journal of Cell Biology 130, no. 6 (1995): 1473–82. http://dx.doi.org/10.1083/jcb.130.6.1473.

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Previous studies have demonstrated that the leukocyte integrin Mac-1 adheres to several cell surface and soluble ligands including intercellular adhesion molecule-1, fibrinogen, iC3b, and factor X. However, experiments with Mac-1-expressing transfectants, purified Mac-1, and mAbs to Mac-1 indicate the existence of additional ligands. In this paper, we demonstrate a direct interaction between Mac-1 and heparan sulfate glycans. Heparin affinity resins immunoprecipitate Mac-1, and neutrophils and transfectant cells that express Mac-1 bind to heparin and heparan sulfate, but not to other sulfated

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10

Zhang, Fuming, Lanhong Zheng, Shuihong Cheng, et al. "Comparison of the Interactions of Different Growth Factors and Glycosaminoglycans." Molecules 24, no. 18 (2019): 3360. http://dx.doi.org/10.3390/molecules24183360.

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Abstract (sommario):

Most growth factors are naturally occurring proteins, which are signaling molecules implicated in cellular multiple functions such as proliferation, migration and differentiation under patho/physiological conditions by interacting with cell surface receptors and other ligands in the extracellular microenvironment. Many of the growth factors are heparin-binding proteins (HBPs) that have a high affinity for cell surface heparan sulfate proteoglycans (HSPG). In the present study, we report the binding kinetics and affinity of heparin interacting with different growth factors, including fibroblast

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Tesi sul tema "Heparin"

1

Raghuraman, Arjun. "Designing Non-saccharide Heparin/Heparan Sulfate Mimics." Online version available 8/19/2013, 2008. http://hdl.handle.net/10156/2269.

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2

Carelli, Guareide [UNESP]. "Associação de doses baixas de heparina não fracionada e de heparina de baixo peso molecular na prevenção de trombose venosa experimental." Universidade Estadual Paulista (UNESP), 2003. http://hdl.handle.net/11449/88962.

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Made available in DSpace on 2014-06-11T19:23:41Z (GMT). No. of bitstreams: 0 Previous issue date: 2003Bitstream added on 2014-06-13T19:09:44Z : No. of bitstreams: 1 carelli_g_me_botfm.pdf: 357124 bytes, checksum: 5673f0ccb2732bdb65892b407c35e19c (MD5)<br>A heparina é um glicosaminoglicano sulfatado, de cadeia longa, que vem sendo largamente utilizada, desde meados do século passado, no tratamento e profilaxia das tromboses arteriais e venosas e cuja utilização permitiu o desenvolvimento das cirurgias cardíaca e vascular. As heparinas de baixo peso molecular (HBPM) são frações ou fragmentos d

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3

Noti, Christian. "Synthesis of heparin oligosaccharides and the creation of heparin microarrays /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17150.

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4

Albig, Thomas. "Synthese und Untersuchung von Heparin-Prodrugs auf Glyceridbasis /." [S.l.] : [s.n.], 1986. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=7990.

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5

Jaime, Rodríguez Juan Carlos. "Unveiling Heparin and Heparan Sulfate Conformations : a Journey into Paramagnetic NMR Analysis." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASF016.

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L'héparine (HP) et les héparane sulfates (HS) sont des polysaccharides sulfatés linéaires qui jouent divers rôles biologiques, notamment dans la croissance cellulaire, l'adhésion, la reconnaissance virale et la métastase du cancer. Leur variété moléculaire et leur motif de sulfatation contribuent à leur polyvalence biologique. Par ailleurs, leur flexibilité conformationnelle a été étudiée par des méthodes telles que la cristallographie aux rayons X et la RMN. Malgré des avancées, interpréter ces caractéristiques reste difficile, surtout pour de longs saccharides. Cette thèse propose l'utilisat

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Nazir, Ahmad Mohamad Farha. "The role of heparin and heparin-binding growth factors in pre-eclampsia." Thesis, Middlesex University, 2016. http://eprints.mdx.ac.uk/21321/.

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The aims of this study tested the hypothesis that expression of heparin-binding growth factors (HBGFs) in normal placental development was altered in a specific pregnancy disorder preeclampsia. HBGFs bind to heparin, a glycosaminoglycan (GAG) affecting activity. I investigated the role of heparin and HBGFs in pathophysiology of pre-eclampsia. Placental tissue from a cohort study of 87 women was performed following uncomplicated pregnancy at term, but not in labour (TNL, n=26), preterm labour (PTL, n=17), following labour onset (TL, n=21), first trimester (FNL, n=4) and pre-eclampsia (PE, n=19)

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7

KRISHNASAMY, CHANDRAVEL. "MOLECULAR MODELING STUDIES OF HEPARIN AND HEPARIN MIMETICS BINDING TO COAGULATION PROTEINS." VCU Scholars Compass, 2009. http://scholarscompass.vcu.edu/etd/18.

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Heparin, a glycosaminoglycan (GAG), is a complex biopolymer of varying chain length and consisting of uronic acid and glucosamine residues, which are sulfated at various positions. The interaction of heparin with antithrombin is the basis for anticoagulation therapy. Heparin accelerates the antithrombin mediated inhibition of factor Xa and thrombin by a conformational activation mechansism and bridging mechanism, respectively. The sequence specific pentasaccharide DEFGH in full length heparin is the most important fragment for high affinity and activation of antithrombin, without which the hep

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8

Sachchidanand. "Heparin binding to fibronectin." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393457.

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9

Evans, Dyfed Ll. "The heparin activateable serpins." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385390.

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Freitas, Cristiane Fonseca. "Efeitos do Bay 41-2272 na hipertensão pulmonar experimental em cães anestesiados." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/308951.

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Orientador: Edson Antunes<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas<br>Made available in DSpace on 2018-08-09T08:05:23Z (GMT). No. of bitstreams: 1 Freitas_CristianeFonseca_D.pdf: 2119434 bytes, checksum: 58a318beb1d3946d852e010325a6187c (MD5) Previous issue date: 2007<br>Resumo: Neste estudo, investigamos os efeitos protetores do BAY 41-2272 sobre a hipertensao pulmonar induzida pelo complexo heparina-protamina e hipoxia em cães anestesiados. Os animais foram anestesiados com pentobarbital sodico (Hypnol, 30mg/kg, iv) combinado com citrato de fen

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Libri sul tema "Heparin"

1

1960-, Warkentin Theodore E., and Greinacher Andreas, eds. Heparin-induced thrombocytopenia. 4th ed. Informa Healthcare USA, 2007.

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2

1960-, Warkentin Theodore E., and Greinacher Andreas, eds. Heparin-induced thrombocytopenia. 3rd ed. Marcel Dekker, 2004.

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Warkentin, Theodore E., and Andreas Greinacher. Heparin-induced thrombocytopenia. 4th ed. Informa Healthcare, 2007.

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4

1960-, Warkentin Theodore E., and Greinacher Andreas, eds. Heparin-induced thrombocytopenia. Dekker, 2000.

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5

1960-, Warkentin Theodore E., and Greinacher Andreas, eds. Heparin-induced thrombocytopenia. 2nd ed. Dekker, 2001.

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6

Lane, David A., Ingemar Björk, and Ulf Lindahl, eds. Heparin and Related Polysaccharides. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4899-2444-5.

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1949-, Lane D. A., Björk Ingemar, and Lindahl Ulf 1939-, eds. Heparin and related polysaccharides. Plenum Press, 1992.

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8

Barrowcliffe, Trevor W. Low molecular weight heparin. Wiley, 1992.

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9

Chang, Shau-Feng. Studies on structure, heparin-binding, and gene expression of hepatic lipase. Dissertationsverlag NG Kopierladen, 1993.

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10

institutet, Karolinska, ed. Lipoprotein lipase, hepatic lipase and plasma lipolytic activity: Effects of heparin and a low molecular weight heparin fragment (Fragmin®). Acta medica Scandinavica, 1988.

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Capitoli di libri sul tema "Heparin"

1

Harr, Jeffrey N., Philip F. Stahel, Phillip D. Levy, et al. "Heparin." In Encyclopedia of Intensive Care Medicine. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-00418-6_715.

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2

Roth, Elliot J. "Heparin." In Encyclopedia of Clinical Neuropsychology. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-57111-9_2219.

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3

Petroianu, Georg, and Peter Michael Osswald. "Heparin." In Anästhesie in Frage und Antwort. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-662-05715-5_28.

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Petroianu, Georg, and Peter Michael Osswald. "Heparin." In Anästhesie in Frage und Antwort. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-662-05717-9_43.

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Roth, Elliot J. "Heparin." In Encyclopedia of Clinical Neuropsychology. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-56782-2_2219-2.

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6

Wilson, John Fawcett. "Heparin." In The Immunoassay Kit Directory. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0679-5_26.

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7

Watkins, Evan, and Daniel Thomas Ginat. "Heparin." In Neuroimaging Pharmacopoeia. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-12715-6_33.

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8

Watkins, Evan, Daniel Thomas Ginat, and Juan E. Small. "Heparin." In Neuroimaging Pharmacopoeia. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-08774-5_44.

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9

Bährle-Rapp, Marina. "Heparin." In Springer Lexikon Kosmetik und Körperpflege. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_4679.

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Roth, Elliot J. "Heparin." In Encyclopedia of Clinical Neuropsychology. Springer New York, 2011. http://dx.doi.org/10.1007/978-0-387-79948-3_2219.

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Atti di convegni sul tema "Heparin"

1

Eldor, A., M. Bar-Ner, L. Wasserman, Y. matzner, Z. Fuks, and I. Viodavsky. "HEPARIN AND NON-ANTICOAGULANT HEPARINS INHIBIT HEPARANASE ACTIVITY IN NORMAL AND MALIGNANT CELLS:POSSIBLE THERAPEUTIC USE IN PREVENTION OF EXTRAVASATION AND DISSEMINATION OF BLOOD BORNE CELLS." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643664.

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Degradation of vascular subendothelium occurs in_vivo during the process of inflammation and tumor invasion. Various observations suggest that the capacity of some blood-borne cells to extravasate may depend in part on their ability to express hepara-nase activity. Incubation of human platelets, human nc-utrophils, or highly metastatic mouse lymphoma cells with sulfate-labeled extracellular matrix (ECM) results in heparanase mediated release of labeled heparan sulfate cleavage fragments (0.5<Kav<0.85 on Sepharose 5B) (J. Clin.Invest. 74: 1842 and 76: 1306; Cancer Res. 43: 2704). The pres

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2

Borowska, A., D. Lauri, A. Maggi, E. Dejana, G. de Gaetano, and J. Pangrazzi. "IMPAIREMENT OF PRIMARY HAEMOSTASIS BY LMW-HEPARINS." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643172.

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Low molecular weight (LMW) heparlns have been developed with the aim of reducing anticoagulant activity thereby minimizing the bleeding complications of conventional heparin. Unexpectedly, bleeding events were reported during treatment with some LMW-heparins, in clinical and experimental studies. We studied the effect of four different LMW-heparlns on primary haemostasis In male rats (CD COBS, Charles River) after l.v. administration of 0.75 mg/kg b.w. of the drugs. LMW heparin A was devoid of any activity on an experimental model of “template” bleeding time in rats (110.6±5.9 sec versus 108.7

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3

Maggi, A., T. W. Barrowcliffe, E. Gray, M. B. Donati, R. E. Merton, and I. Pangrazzi. "RELATIONSHIP BETWEEN HAEMORRHAGIC AND LIPASE-RET EASING PROPERTIES OF HEPARIN AND LMV HEPARIN." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1642929.

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In a preliminary study, a good correlation (r = 0.97) was noted between the relative abilities of an unfractionated heparin, a LMW heparin, pentosan poly sulphate and dermatan sulphate to prolong the template bleeding time in rabbits and their lipase-releasing potencies. In the present study, we have measured the prolongation of both the template and transection bleeding times in groups of 5 rats given i.v. injections of 0.75 mg/kg of two different unfractionated heparins (UEH), A and B, three different LMW heparins, X, Y and Z, and a heparan sulphate, HS. Lipase release was measured in plasma

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4

Dawes, J., and D. S. Pepper. "A COMPARISON OF THE BINDING OF ANTITHROMBIN III AND HEPARIN COFACTOR II TO HEPARINS, NATURALLY OCCURRING GLYCOSAMINOGLYCANS AND OTHER SULPHATED POLYMERS." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1642827.

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Antithrombin III (ATIII) and heparin cofactor II (HCII) are currently thought to be the most important protein mediators of the anticoagulant and antithrombotic activities of glycosamino-glycans. A simple, quantitative method for assessing the affinity of a protein for a sulphated polymer in the liquid phase, based on competition with immobilised heparin, has been developed. Using this technique, the binding of ATIII and HCII to a wide range of glycosaminoglycans and other sulphated polymers have been compared, and the contributions to binding of size, degree of sulphation and backbone structu

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5

Messmore, H., B. Griffin, J. Seghatchian, and E. Coyne. "HIGH CONCENTRATIONS OF HEPARIN ARE MORE INHIBITORY TO PLATE- AGGREGATION IN-VITRO THAN ARE LOW MOLECULAR WEIGHT HEPARINS AND HEPARINOIDS AT THE SAME CONCENTRATION." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644186.

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Other investigators have shown that heparin in the usual therapeutic range (0.1-0.5 units/ml) has an enhancing effect on ADP aggregation and an inhibitory effect on collagen and thrombin induced aggregation. The effects of low molecular weight heparin (LMWH)and heparinoids (dermatan sulfate, heparan sulfate) on platelet aggregation have not been as extensivelystudied. We have utilized citrated platelet rich plasma (3.2%citrate-whole blood 1:9) drawn in plastic and adjusted to a final platelet count of 250,000/ul. A Bio-Data 4 channgl aggregometer was utilized with constantstirring at 37 C. The

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Ordu, Y., J. Augustin, E. V. Hodenberg, V. Bode, and J. Harenberg. "COMPARATIVE CLINICAL PHARMACOLOGY OF LOW MOLECULAR WEIGHT HEPARINS IN MAN." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643228.

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Low molecular weight (LMW) heparins are obtained by diffent chemical procedures from conventional pig intestinal mucosa heparin. The LMW heparins differ in their molecular weight distribution and physicochemical properties. Therefore, we report of comparative studies on the anticoagulant and lipolytic effects of low molecular weight heparins in man.The following LMW heparins were used: BM 21-23 (Braun, Melsungen, FRG), CY 216 (Choay Laboratories, Paris, France), Heparin NM (Sandoz, Niimberg, FRG), Kabi 2165 (Kabi Vitrum AB, Stockholm, Sweden), RD Heparin (Hepar Industries, Franklin, US A), nor

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7

Zimmerman, R. A., C. T. Rieger, K. Hübner, C. W. Harenber, and W. Kübler. "EXPERIMENTAL THROMBUS FORMATION AND HAEMOSTASIS OF DIFFERENT LOW MOLECULAR WEIGHT HEPARINS AND DOSAGES." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644162.

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Low molecular weight heparin induces a higher anti factor Xa (a-Xa) and a lower antithrombin activity in plasma in comparison to conventional heparin. From this constellation a more pronounced antithrombotic effect and a minor incidence of bleeding Complications has been suggested.Therefore the antithrombotic activity of heparins was studied in a standardized experimental thrombosis model in rabbits. Three low molecular weight heparins with a mean molecular weight of 4.200 (heparin I),4.000 (heparin II),4.600 Dalton (heparin III) and standard heparin were tested at different dosages in 120 exp

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8

Rathjen, A., and Carolyn L. Geczy. "PRODUCTION AND CHARACTERISATION OF MONOCLONAL ANTIBODIES AGAINST HEPARIN Deborah." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644188.

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To complement the studies using MAbs to AT III and because of the reported ability of heparin to modulate several aspects of the cell-mediated immune response, we have prepared two mouse monoclonal antibodies (MAbs) to porcine mucosal heparin.MAb 25/15 is an IgGl and MAb 26/7 is an IgM. Both MAbs have iso-electric points between pH5.85 and 6.55. The MAbs recognise porcine and bovine mucosal heparin and rat mast cell heparin. Heparins with both high and low affinitiesfor antithrombin III (ATIII) bound both MAbs but neither MAb altered the binding of heparin to AT III. These antibodies did not r

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9

Jackson, Craig M. "A DEFINITION OF HEPARIN ANTICOAGULANT POTENCY APPLICABLE TO ALL HEPARINS AND HEPARIN-LIKE SUBSTANCES AND ITS PRACTICAL APPLICATION IN ASSAYING HEPARIN." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1642928.

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Abstract (sommario):

Heparins increase the rate of inactivation of proteinases by antithrombin without being consumed in the inactivation reaction. The anticoagulant activity of any heparin or heparin preparation is thus determined by the increase in the inactivaton rate which it produces. This rate increase is dependent on the concentration of the heparin in the sample and on some now well known structural properties of the individual heparin molecules that produce high affinity for antithrombin . All proteinases are not inactivated by antithrombin equally rapidly in the absence of heparin, nor are heparins and h

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10

Fenichel, R. L., W. Carmint, B. Small, and J. Willis. "COMPARISON OF THE ANTITHROMBOTIC, ANTICLOTTING AND ANTIPLATELET AGGREGATORY ACTIVITIES OFLOW MOLECULAR WEIGHT RD HEPARIN WITH HEPARIN." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644854.

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Abstract (sommario):

An initial comparison of in vitro plasma anti-factor Xa (anti Xa) and activated partial thromboplastin time (APTT) values of RD heparin with heparin based upon USP units shows increased anti Xa and decreased APTT activity of RD heparin. An ex vivo experiment in rabbits in which 100 USP units/kg of RD heparinand 200 USP units/kg of heparin, when given by the subcutaneous route, reflects the significantly increased anti Xa activity generated by RD heparin as wellas its longer duration of action. No significant difference in APTT activity was observed for the two heparins, but an increased anti X

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Rapporti di organizzazioni sul tema "Heparin"

1

Carlin, Stephanie, Andrew M. Morris, Zainab B. Abdurrahman, et al. Heparin Anticoagulation for Hospitalized Patients with COVID-19. Ontario COVID-19 Science Advisory Table, 2021. http://dx.doi.org/10.47326/ocsat.2021.02.41.1.0.

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2

Upchurch, G. R., Valeri Jr., Khuri C. R., Rohrer S. F., Welch M. J., and G. N. The Effect of Heparin on Fibrinolytic Activity and Platelet Function. Defense Technical Information Center, 1995. http://dx.doi.org/10.21236/ada360274.

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3

Salomon, David. The Role of Heparin-Binding EGF-Like Growth Factor in Breast Cancer. Defense Technical Information Center, 1995. http://dx.doi.org/10.21236/ada300394.

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4

Chen, Chen, Peng Chen, Xia Liu, and Hua Li. Combined 5-Fluorouracil and Low Molecular Weight Heparin for the Prevention of Postoperative Proliferative Vitreoretinopathy in Patients with Retinal Detachment. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2021. http://dx.doi.org/10.37766/inplasy2021.8.0117.

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Review question / Objective: The aim of this meta-analysis is to evaluate the efficacy and safety of intraoperative infusion of combined 5-fluorouracil and low molecular weight heparin (LMWH) for the prevention of postoperative proliferative vitreoretinopathy in patients with retinal detachment. Condition being studied: Postoperative proliferative vitreoretinopathy (PVR) is the primary cause of failure of retinal reattachment surgery. 5-fluorouracil (5-FU) inhibits the proliferation of fibroblasts, and suppresses collagen contraction. On the other hand, heparin reduces fibrin exudation, and in

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5

Khuri, S. F., C. R. Valeri, J. Loscalzo, M. Weinstein, and V. Birjiniuk. Heparin Causes Platelet Dysfunction and Induces Fibrinolysis Before the Institution of Cardiopulmonary Bypass. Defense Technical Information Center, 1995. http://dx.doi.org/10.21236/ada360259.

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6

Li, Rui, Xiang Gao, Tao Zhou, Yunjie Li, Jianhui Wang, and Peirong Zhang. Regional citrate versus heparin anticoagulation for CRRT in critically ill patients: a meta-analysis of RCTS. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2021. http://dx.doi.org/10.37766/inplasy2021.12.0093.

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7

Chan, Shan-Ho, Cheng-Kai Huang, Po-Nien Hou, and Jay Wu. Meta-Analysis of the Effectiveness of Heparin in Suppressing Physiological Myocardial FDG Uptake in PET/CT. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2023. http://dx.doi.org/10.37766/inplasy2023.3.0015.

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8

Wei, Qingqing, Weiying Wang, Guobin Miao, et al. Aspirin Versus Low-Molecular-Weight Heparin for Venous Thromboembolism Prophylaxis in Patients after Postoperative Joint Surgery: A Meta-Analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2023. http://dx.doi.org/10.37766/inplasy2023.2.0117.

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9

Lin, Yun-Kuan, Yu-Ning Huang, and Jen-Hung Wang. Effects of heparin on venom-induced consumption coagulopathy: protocol for a systematic review, meta-analysis, and trial sequential analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2024. http://dx.doi.org/10.37766/inplasy2024.2.0070.

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10

huang, kun, yan sun, and hai jiang. Effect of low molecular weight heparin combined with aspirin on pregnancy outcomes of unexplained recurrent abortion: a systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2023. http://dx.doi.org/10.37766/inplasy2023.10.0005.

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