scholarly journals The enhancing effect and promoting mechanisms of the stereoisomeric monoterpene alcohol esters as enhancers for drugs with different physicochemical properties

2021 ◽  
Author(s):  
Heping Wang ◽  
Yan Li ◽  
Chunyan Wang ◽  
Jing Wang ◽  
Bo Ren ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Enhancing Effect

Preparation and characterisation of vanadium pentoxide supported rhodium catalyst

1988 ◽  
Vol 46 ◽  
pp. 946-947
Author(s):  
A. Legrouri
Keyword(s):  
Aqueous Solution ◽  
Thermal Decomposition ◽  
Physicochemical Properties ◽  
Surface Area ◽  
Vanadium Pentoxide ◽  
High Purity ◽  
Gas Adsorption ◽  
Rhodium Catalyst ◽  
Optical Methods ◽  
Reducible Oxides

The industrial importance of metal catalysts supported on reducible oxides has stimulated considerable interest during the last few years. This presentation reports on the study of the physicochemical properties of metallic rhodium supported on vanadium pentoxide (Rh/V2O5). Electron optical methods, in conjunction with other techniques, were used to characterise the catalyst before its use in the hydrogenolysis of butane; a reaction for which Rh metal is known to be among the most active catalysts.V2O5 powder was prepared by thermal decomposition of high purity ammonium metavanadate in air at 400 °C for 2 hours. Previous studies of the microstructure of this compound, by HREM, SEM and gas adsorption, showed it to be non— porous with a very low surface area of 6m2/g3. The metal loading of the catalyst used was lwt%Rh on V2Q5. It was prepared by wet impregnating the support with an aqueous solution of RhCI3.3H2O.

The Enhancing Effect of Role Conflict on Joint Gain in Integrative Negotiation

2012 ◽  
Author(s):  
Jiandong Zhang ◽  
Meina Liu ◽  
Wu Liu
Keyword(s):  
Role Conflict ◽  
Joint Gain ◽  
Enhancing Effect ◽  
Integrative Negotiation

The enhancing effect of emotional arousal on later recall requires active retrieval

2011 ◽  
Author(s):  
Bridgid Finn ◽  
Henry L. Roediger
Keyword(s):  
Emotional Arousal ◽  
Enhancing Effect

Cognition-enhancing effect of vagus nerve stimulation on refractory epilepsy secondary to lissencephaly: A case report.

2018 ◽  
Vol 11 (1) ◽  
pp. 80-85
Author(s):  
Rodrigo Marmo da Costa e Souza ◽  
Felipe Ricardo Pereira Vasconcelos De Arruda ◽  
Jose Anderson Galdino Santos ◽  
Jamerson De Carvalho Andrade ◽  
Suellen Mary Marinho Dos Santos Andrade ◽  
...  
Keyword(s):  
Case Report ◽  
Vagus Nerve ◽  
Nerve Stimulation ◽  
Vagus Nerve Stimulation ◽  
Refractory Epilepsy ◽  
Enhancing Effect

The Effects of Sodium Citrate and an Excess of Plasminogen on Fibrinolytic Agents

1960 ◽  
Vol 04 (03) ◽  
pp. 462-472 ◽  
Author(s):  
Tage Astrup ◽  
Ida Sterndorff
Keyword(s):  
Fumaric Acid ◽  
Maleic Acid ◽  
Fibrinolytic Activity ◽  
Sodium Citrate ◽  
Plasminogen Activators ◽  
Fibrinolytic Agents ◽  
Enhancing Effect ◽  
Polycarboxylic Acids

Summary1. The presence of citrate in the normal fibrin enhanced the fibrinolytic activity of plasminogen activators, including trypsin. The effect of proteases (on normal or on heated fibrin, containing citrate) was not significantly influenced.2. The effect of plasminogen activators was also increased when excess of plasminogen was present in the normal fibrin plates.3. Fumaric acid and maleic acid belong to the polycarboxylic acids producing an enhancing effect.

Interaction of Heparin with Fibrinolysis

1963 ◽  
Vol 09 (02) ◽  
pp. 446-458 ◽  
Author(s):  
Rudolf Holemans ◽  
Dionysios Adamis ◽  
James F Horace
Keyword(s):  
Human Plasma ◽  
Fibrinolytic Activity ◽  
Plasminogen Activation ◽  
Fibrinolytic Agents ◽  
High Concentration ◽  
Enhancing Effect

SummaryHeparin in high concentration inhibits the fibrinolysis of human plasma clots or bovine fibrin by fibrinolytic agents which produce plasminogen activation. Heparin has no effect on the fibrinolytic activity of plasmin or Aspergillus protease.In order to produce inhibition of plasminogen activation heparin requires the presence of a co-factor which is present in citrated human plasma but absent from its euglobulin fraction.In none of the concentrations tested has heparin an enhancing effect on fibrinolysis.

The Action of an Aniline Derivative (AN 162) on Blood Coagulation and on Platelets

1971 ◽  
Vol 26 (01) ◽  
pp. 145-166
Author(s):  
E Deutsch ◽  
K Lechner ◽  
K Moser ◽  
L Stockinger
Keyword(s):  
Blood Coagulation ◽  
Citric Acid Cycle ◽  
Second Phase ◽  
Aniline Derivative ◽  
Acid Cycle ◽  
Enhancing Effect ◽  
Low Concentrations ◽  
Dual Action ◽  
High Concentrations ◽  
Induced Aggregation

Summary1. The aniline derivative AN 162, Donau Pharmazie, Linz, Austria, has a dual action on the blood coagulation: an anticoagulant and an coagulation enhancing effect.2. The anticoagulant action may only be demonstrated with high concentrations (over 1 X 10”3 M related to plasma) preferentially in PPP. It is partially caused by an inhibition of the endogenous way of generation of the prothrombin converting principle. In addition it is suggested that it interferes with the fibrinogen-fibrin reaction in a manner not yet understood.3. The coagulant action is caused by a greater availability of platelet constituents at low concentrations of AN 162 (over 1 × 10-4 M) and by the induction of a release reaction at higher concentrations. The platelet factors 3 and 4, serotonin, adenine, and acid phosphatase are released.4. AN 162 inhibits platelet aggregation. This inhibition can be demonstrated by the PAT of Breddin and in the stirred aggregation test of Born. It is more effective to inhibit the collagen-induced and the second phase of the adrenaline-induced aggregation than the ADP induced one. The platelet retention (test of Hellem) is also reduced.5. The action of AN 162 on the platelets is caused by a damage of the platelet membrane which becomes permeabel for both, soluble platelet constitutents and granula.6. AN 162 interferes with the energy metabolism of the platelets. It causes a loss of ATP, and inhibits the key-enzymes of glycolysis, citric acid cycle, fatty acid oxydation and glutathione reduction.7. AN 162 inhibits the growth of fibroblasts without influence on mitosis.

Studies on the Degradation of Human Fibrinogen by Plasmin and Trypsin

1966 ◽  
Vol 16 (03/04) ◽  
pp. 526-540 ◽  
Author(s):  
E. A Beck ◽  
D. P Jackson
Keyword(s):  
Physicochemical Properties ◽  
Electrophoretic Mobility ◽  
Rapid Loss ◽  
Clotting System ◽  
Human Fibrinogen ◽  
Peptide Bonds ◽  
Physico Chemical ◽  
Starch Gel ◽  
Ph Stat ◽  
Rapid Appearance

SummaryThe effects of trypsin and plasmin on the functional and physicochemical properties of purified human fibrinogen were observed at various stages of proteolysis. Concentrations of plasmin and trypsin that produced fibrinogenolysis at comparable rates as measured in a pH stat produced, at similar rates, loss of precipitability of fibrinogen by heat and ammonium sulphate and alterations in electrophoretic mobility on starch gel. Trypsin produced a more rapid loss of clottability of fibrinogen and a more rapid appearance of inhibitors of the thrombin-fibrinogen clotting system than did plasmin. Consistent differences were noted between the effects of trypsin and plasmin on the immunoelectrophoretic properties of fibrinogen during the early stages of proteolysis.These results are consistent with the hypothesis that trypsin initially reacts with the same peptide bonds of fibrinogen that are split by thrombin, but these same bonds do not appear to be split initially by plasmin. Measurement of the various functional and physico-chemical changes produced by the action of trypsin and plasmin on fibrinogen can be used to recognize various stages of proteolysis.

Ruthenium(II) Complexes of 1H-Imidazo[4,5-f][1,10]Phenanthroline Derivatives: Physicochemical Properties and Photosensitizing Ability

INEOS OPEN ◽  
2020 ◽  
Vol 3 ◽  
Author(s):  
S. D. Tokarev ◽  
◽  
Yu. V. Fedorov ◽  
Keyword(s):  
Physicochemical Properties
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