Acetylcholinesterase inhibition, antioxidant and identification of some chemical constituents of Phyllanthus atropurpureus cultivated in Egypt

Autor: Walid E. Abdallah, Rasmia A. Hassan, Naglaa M. Nazif, Wael M Elsayed, Mohammed Ibrahim Ali, Khaled A. Abdelshafeek

Publikováno v: Brazilian Journal of Pharmaceutical Sciences, Vol 55 (2019)
Brazilian Journal of Pharmaceutical Sciences; Vol. 55 (2019); e18083
Brazilian Journal of Pharmaceutical Sciences; v. 55 (2019); e18083
Brazilian Journal of Pharmaceutical Sciences
Universidade de São Paulo (USP)
instacron:USP

Investigation of the lipid constituents of the aerial parts of Phyllanthus atropurpureus resulted in isolation and identification of the fatty acid mixture which consists of eight acids with linolenic acid as major and the unsaponifiable fraction tha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e80a1840f2a3dce317a07fe8500951b
https://doi.org/10.1590/s2175-97902019000118083

Phytoconstituents of Zizyphus spina-christi L. fruits and their antimicrobial activity

Autor: Naglaa M Nazif

Publikováno v: Food Chemistry. 76:77-81

The crude protein of Zizyphus spina-christi seeds was found to be 15.9%. The percentage of essential amino acids was (12.8%) of total amino acids. Semi-essential was 17.1%, and non-essential represents 70% of the total mixture. Free sugars of the edi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5c4309cf886ace3dd3964a5533617836
https://doi.org/10.1016/s0308-8146(01)00243-6

Isolation and characterization of antineoplastic alkaloids from Catharanthus roseus l. Don. cultivated in Egypt

Autor: Mostafa M El-Missiry, Khaled A. Shams, Medhat M Seif El Nasr, Naglaa M Nazif, Nahla S. Abdel Azim, Khaled A Abdel Shafeek, S. I. Ismail

Publikováno v: African Journal of Traditional, Complementary and Alternative Medicines. 6

Vinblastine and vincristine (the antileukemic agents) were isolated, in a pure form, from Catharanthus roseus L. Don., cultivated in Egypt, by several chromatographic techniques. Five modified methods for the preparation of total alkaloids were carri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84cdd4fbaad644183f4bbcc34d92650f
https://doi.org/10.4314/ajtcam.v6i2.57082

Phytochemical investigation and antioxidant activity of Duranta repens

Autor: Arnold J. Vlietinck, Abdelaaty A. Shahat, Sabine Van Miert, Nabaweia A. Ibrahim, Lobna M. Abou-Setta, Paul Cos, Naglaa M. Nazif, Luc Pieters

Publikováno v: Phytotherapy research

The ethylacetate fraction of the methanol extract of Duranta repens L. (Verbenaceae) showed radicalscavenging activity in the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. Three compounds were isolated from this fraction, i.e. the phenylethanoid glycos

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::477844609181b4ec38db48f64b03c3e1
https://pubmed.ncbi.nlm.nih.gov/16372377

Isolation of mangiferin from Bombax malabaricum and structure revision of shamimin

Autor: Rasmeia A. Hassan, Sabine Van Miert, Faiza M. Hammuda, Arnold J. Vlietinck, Abdelaaty A. Shahat, Luc Pieters, Naglaa M. Nazif

Publikováno v: Planta medica. 69(11)

Repeated column chromatography of the n-BuOH fraction of the 70% EtOH of the dried leaves of Bombax malabaricum led to the isolation of mangiferin, a xanthone. Mangiferin was identified by UV,'H- and 13 C-NMR spectroscopy and electrospray mass spectr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5af3b5510d9b104c4c73cbaf03edcad3
https://pubmed.ncbi.nlm.nih.gov/14735452