Biologically active stable radicals. XX. Hemolytic activity of 2,2,6,6, tetramethylpiperidine derivatives

1988 ◽  
Vol 22 (2) ◽  
pp. 98-100
Author(s):  
R. I. Zhdanov ◽  
�. G. Rozantsev
Keyword(s):  
Hemolytic Activity ◽  
Biologically Active ◽  
Stable Radicals

Biologically Active Stable Radicals; IV. The Synthesis of a Nitroxyl Radical Containing the Vinylsulfonyl Group1

Synthesis ◽  
1977 ◽  
Vol 1977 (05) ◽  
pp. 312-313 ◽  
Author(s):  
R. I. ZHDANOV ◽  
N. G. KAPITANOVA ◽  
E. G. ROZANTSEV
Keyword(s):  
Nitroxyl Radical ◽  
Biologically Active ◽  
Stable Radicals

Biologically Active Stable Radicals; VII1. Spin Labeling of Nucleosides and Nucleotides at the NH2Group

Synthesis ◽  
1979 ◽  
Vol 1979 (04) ◽  
pp. 267-269 ◽  
Author(s):  
R. I. Zhdanov ◽  
V. A. Porotikova ◽  
E. G. Rozantsev
Keyword(s):  
Spin Labeling ◽  
Biologically Active ◽  
Stable Radicals

Biologically active stable radicals. XI: Synthesis of spin-labelled phosphatidylethanolamine

1979 ◽  
Vol 23 (2) ◽  
pp. 155-162 ◽  
Author(s):  
V.A. Sukhanov ◽  
R.I. Zhdanov ◽  
V.I. Shvets
Keyword(s):  
Biologically Active ◽  
Stable Radicals

Cytotoxic Activity of Different Extracts from Brown Marine Macroalgae from the El Jadida Region (Morocco)

2019 ◽  
Vol 10 (03) ◽  
Author(s):  
M Lasky ◽  
R Nmila ◽  
F Chibi ◽  
H Abd Alabas Oualili ◽  
El Abd Alabas Idrissi E ◽  
...  
Keyword(s):  
Cytotoxic Activity ◽  
Hemolytic Activity ◽  
Atlantic Coast ◽  
Biologically Active ◽  
Marine Macroalgae ◽  
Brown Macroalgae ◽  
Hemolytic Assay ◽  
High Doses ◽  
El Jadida

The therapeutic use of extraordinary virtues of algae in healthcare is very ancient and has evolved throughout the history of humanity. However, low or high doses and/or prolonged administration of algae-derived biologically active substances may trigger adverse or even harmful effects such as hemolytic properties. In this study, hemolytic activities of the brown algae Cystoseira myriophylloides (F/Sargassaceae) from El Jadida coast (Moroccan Atlantic coast) on human erythrocyte were investigated. The toxicity of chloroform-methanolic, methanolic, chloroformic, isoprpanolic and butanolic extracts and fractions derived from Cystoseira myriophylloides on human erythrocytes was measured by in vitro hemolytic assay. The results obtained show variable cytotoxicity of C. myriophyloides against the red blood cells. Indeed, the crude extract has a fairly high hemolytic activity that is very marked when the erythrocytes are incubated in the presence of the chloroformic extract. However, the cytotoxic activity is greatly increased in the presence of the butanolic fraction derived by partitioning of the isopropanolic extract. Moreover, the hemolysis activity is dose-dependent and depending on the evolution of incubation time. Thus, these results show that the majority of extracts and fractions of brown macroalgae Cystoseira myriophylloides manifest hemolytic activity.

Biologically active stable radicals 10. The mass spectrometry of certain derivatives of tetramethyl-piperidine and their N-oxyls

1978 ◽  
Vol 27 (8) ◽  
pp. 1612-1619
Author(s):  
B. V. Rozynov ◽  
R. I. Zhdanov ◽  
O. S. Reshetova ◽  
N. G. Kapitanova ◽  
Z. L. Gordon ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Biologically Active ◽  
Stable Radicals ◽  
Derivatives Of

Biologically active stable radicals

1980 ◽  
Vol 29 (2) ◽  
pp. 278-281 ◽  
Author(s):  
R. I. Zhdanov ◽  
N. G. Kapitanova ◽  
�. G. Rozantsev
Keyword(s):  
Biologically Active ◽  
Stable Radicals

Biologically Active Stable Radicals; XV1. Spin-Labeled Alkyl Carbamate-N-phosphonic Acid Aziridides

Synthesis ◽  
1979 ◽  
Vol 1979 (04) ◽  
pp. 269-270 ◽  
Author(s):  
R. I. Zhdanov ◽  
N. A. Buina ◽  
N. G. Kapitanova ◽  
I. A. Nuretdinov
Keyword(s):  
Phosphonic Acid ◽  
Biologically Active ◽  
Stable Radicals ◽  
Alkyl Carbamate
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