Morphofunctional Assessment of the Glycyrrhizinic Acid Effect on Myocardium of Rats under Adrenaline Loading

2020 ◽  
Author(s):  
G Bazekin
Keyword(s):  
Glycyrrhizinic Acid ◽  
Acid Effect

Intrathoracic Platelet Accumulation in the Guinea-Pig Induced by Intravenous Administration of Arachidonic Acid - Effect of Cyclooxygenase and Thromboxane Synthetase Inhibitors

1986 ◽  
Vol 56 (03) ◽  
pp. 311-317 ◽  
Author(s):  
P A Barrett ◽  
K D Butler ◽  
R A Shand ◽  
R B Wallis
Keyword(s):  
Arachidonic Acid ◽  
Blood Volume ◽  
Intravenous Administration ◽  
Guinea Pigs ◽  
Human Albumin ◽  
Thromboxane Synthetase ◽  
Acid Effect ◽  
Rapid Accumulation ◽  
Platelet Accumulation ◽  
High Doses

SummaryIntravenous administration of arachidonic acid to guinea-pigs caused a dose-related, rapid accumulation of 51Cr-labelled platelets in the thorax. Inhibitors of cyclooxygenase inhibited the platelet accumulation, induced by arachidonic acid (30 mg/kg), at doses which did not alter the thoracic blood volume (as measured by 131I-labelled human albumin). Thromboxane synthetase inhibitors had different effects on platelet accumulation depending on the dose. CGS 12970 (3 mg/kg) and N(1-carboxyheptyl) imidazole (100 mg/kg) reduced platelet accumulation. High doses of CGS 12970 and CGS 13080 caused an apparent enhancement of platelet accumulation which was associated with pooling of blood in the thorax, as measured by either 131I-labelled human albumin or 51Cr-labelled erythrocytes. This increase in thoracic blood volume was abolished if the guinea-pigs were also pretreated with diclofenac (1 mg/kg) in addition to the thromboxane synthetase inhibitor. Increases in thoracic blood volume were also obtained following infusions of PGI2 but not PGD2 or PGE2.

Studies on the Coordination Reaction of VO2+ and Tannic Acid in the Tannin Extract Desulfurization

2012 ◽  
Vol 239-240 ◽  
pp. 1573-1576
Author(s):  
Zhu Qing Gao ◽  
Xiao Dong Cai ◽  
Kai Cheng Ling
Keyword(s):  
Stability Constants ◽  
Tannic Acid ◽  
Ph Value ◽  
Protonation Constants ◽  
Conditional Stability ◽  
Tannin Extract ◽  
Acid Effect ◽  
Different Temperatures ◽  
The Stability ◽  
Apparent Stability

At different temperatures, the protonation constants of tannic acid and the complex apparent stability constants between tannic acid and VO2+ were determined by using pH potentimetric method. The results showed that the protonation constants and the complex apparent stability constants slightly decreased with the raising temperature. In accordance with the pH value in the tannin extract technology, the conditional stability constants of the complex were calculated on the basis of the acid effect of tannic acid and the hydrolysis effect of VO2+. It was found that pH greatly affected the stability constants of the complex , so pH must be strictly controlled in the tannin extract technology.

Caved-S and ulcedal for peptic ulcer

1973 ◽  
Vol 11 (3) ◽  
pp. 10-12
Keyword(s):  
Duodenal Ulcer ◽  
Peptic Ulcer ◽  
Glycyrrhizinic Acid

Caved-S (Tillotts) and Ulcedal (Boehringer) are being promoted for the treatment of gastric and duodenal ulcer. Both contain the same special preparation of powdered block liquorice from which most of the glycyrrhizinic acid has been removed.

Thorium oxide dissolution in HNO3-HF mixture: kinetics and mechanism

2019 ◽  
Vol 107 (4) ◽  
pp. 289-297 ◽  
Author(s):  
Marie Simonnet ◽  
Nicole Barré ◽  
Romuald Drot ◽  
Claire Le Naour ◽  
Vladimir Sladkov ◽  
...  
Keyword(s):  
Experimental Data ◽  
Dissolution Rate ◽  
Hydrofluoric Acid ◽  
Kinetics And Mechanism ◽  
Dissolution Mechanism ◽  
Oxide Dissolution ◽  
Thorium Oxide ◽  
Specific Focus ◽  
Acid Effect ◽  
Wide Range

Abstract This paper is an attempt to find out thorium oxide dissolution mechanism in HNO3-HF mixture. In a previous paper, several parameters effects on thorium oxide dissolution have been described, with specific focus on hydrofluoric acid effect, which can lead to an increase of the dissolution rate if present in small amount, but precipitates as ThF4 at higher content. Based on this previous study, experimental data were fitted using several dissolution models in order to find out the best one. Finally, a revisited model based on literature and considering the ThF4 formation was proposed. It describes the main steps of dissolution and is able to fit the experimental data for a wide range of solution compositions. This point is crucial since it allows considering an extrapolation of the established model to not-yet-studied conditions.

Laccase-Catalyzed Heterocoupling of Dihydroquercetin and p-Aminobenzoic Acid: Effect of the Reaction Product on Cultured Cells

2018 ◽  
Vol 83 (8) ◽  
pp. 992-1001
Author(s):  
M. E. Khlupova ◽  
O. V. Morozova ◽  
I. S. Vasil’eva ◽  
G. P. Shumakovich ◽  
N. V. Pashintseva ◽  
...  
Keyword(s):  
Cultured Cells ◽  
Aminobenzoic Acid ◽  
Acid Effect

The stability of Fe(III)-As(V) co-precipitate in the presence of ascorbic acid: Effect of pH and Fe/As molar ratio

Chemosphere ◽  
2019 ◽  
Vol 218 ◽  
pp. 670-679 ◽  
Author(s):  
Zidan Yuan ◽  
Guoqing Zhang ◽  
Jinru Lin ◽  
Xiangfeng Zeng ◽  
Xu Ma ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Molar Ratio ◽  
Effect Of Ph ◽  
Acid Effect ◽  
The Stability
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