User profiles for S. Elmarakby

Seham M. El-Marakby

Ass. Prof. of Biophysics
Verified email at eaea.org.eg
Cited by 205

Metabolism of the Catharanthus alkaloids: from Streptomyces griseus to monoamine oxidase B

JPN Rosazza, MW Duffel, S El-Marakby… - Journal of natural …, 1992 - ACS Publications
More than three decades after their discovery and implementation in medicine, essentially
nothing is known about the metabolism or the implicationsof metabolism in mechanism of …

Microbial transformation studies on arteannuin B

SA Elmarakby, FS el-Feraly, HN Elsohly… - Journal of natural …, 1987 - ACS Publications
The microbial transformation of the sesquiterpene lactone arteannuin B [3] using Aspergillus
flavipes produced dihydroart eannuin B [4] as the main transformation product. Preparative-…

Microbiological transformations of artemisinic acid

SA Elmarakby, FS El-Feraly, HN Elsohly, EM Croom… - Phytochemistry, 1988 - Elsevier
The microbial transformation of the sesquiterpene artemisinic acid (3) using Mucor mucedo
and Aspergillus flavipes has resulted in the production of epimeric 3-hydroxyartemisinic …

[HTML][HTML] Ameliorative effects of rutin on hepatic encephalopathy-induced by thioacetamide or gamma irradiation

SZ Mansour, SM El-Marakby, FSM Moawed - Journal of Photochemistry and …, 2017 - Elsevier
Hepatic encephalopathy (HE) is a syndrome resulting from acute or chronic liver failure.
This study was designed to evaluate the effect of rutin on thioacetamide (TAA) or γ-radiation-…

Biophysical Characterization of β-Thalassemic Red Blood Cells

…, NS Selim, EM El-Bakrawy, SM El-Marakby - Cell biochemistry and …, 2009 - Springer
Thalassemia is the world’s most common hereditary disease; therefore, more interest has
been devoted for the development of the screening procedure of this disease. In β-thalassemia …

Degradation of [14C]Carfentrazone-ethyl under Aerobic Aquatic Conditions

SA Elmarakby, D Supplee, R Cook - Journal of agricultural and …, 2001 - ACS Publications
Carfentrazone-ethyl (CF-E) is an aryl triazolinone reduced-risk herbicide for use on corn,
wheat, and soybean. As part of the assessment of its metabolic fate, the aerobic aquatic …

Microbial metabolism of bornaprine, 3-(diethylamino) propyl 2-phenylbicyclo [2.2. 1] heptane-2-carboxylate

SA Elmarakby, AM Clark, JK Baker… - Journal of pharmaceutical …, 1986 - Elsevier
… The combined ethyl acetate extract-s were dried over anhydrous NazS04 and were filtered
through absorbent cotton. The eolvent was evaporated under reduced pressure (40 "C) to …

Rheological properties of blood after whole body gamma-irradiation

NS Selim, OS Desouky, SM ELMARAKBY, IH Ibrahim… - 2009 - sid.ir
… The relative permittivity ε's relaxation strength Δε' and relaxation time τ(s) calculated in
this study showed significant decrease after exposure to the lowest dose and continued to …

Assessment of chronic exposure effects and radioadaptive response of natural occurring radioactive materials (NORM)

SM El-Marakby, MM Awad, KM Eraba… - Radiation Physics and …, 2020 - Elsevier
A large amount of naturally occurring radioactive materials (NORM) is produced by the
technological enhanced activities of gas and oil industries as by-products or waste. The present …

In vitro metabolic transformations of vinblastine: oxidations catalyzed by peroxidase

SA Elmarakby, MW Duffel, A Goswami… - Journal of medicinal …, 1989 - ACS Publications
Vinblastine is converted to a single major metabolite duringin vitro enzymatic oxidationscatalyzed
by horseradish peroxidase in the presence of hydrogen peroxide. Preparative-…