Diaa Youssef

Diaa Youssef

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Diaa Youssef

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Bioactive Diketopiperazines and Nucleoside Derivatives from a Sponge-Derived Species.

Mar Drugs 2019 Oct 16;17(10). Epub 2019 Oct 16.

UMR 8038 CiTCoM, Faculté de Pharmacie de Paris, Université Paris Descartes, Avenue de l'observatoire, 75006 Paris, France.

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http://dx.doi.org/10.3390/md17100584DOI Listing
October 2019

Cardenolides: Insights from chemical structure and pharmacological utility.

Pharmacol Res 2019 03 21;141:123-175. Epub 2018 Dec 21.

Department of Pharmaceutical Biology, Institute of Pharmacy, Johannes Gutenberg University, 55128 Mainz, Germany.

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https://linkinghub.elsevier.com/retrieve/pii/S10436618183118
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http://dx.doi.org/10.1016/j.phrs.2018.12.015DOI Listing
March 2019

The demosponge Pseudoceratina purpurea as a new source of fibrous chitin.

Int J Biol Macromol 2018 Jun 13;112:1021-1028. Epub 2018 Feb 13.

Institute of Experimental Physics, TU Bergakademie Freiberg, Leipziger str. 23, 09559 Freiberg, Germany. Electronic address:

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http://dx.doi.org/10.1016/j.ijbiomac.2018.02.071DOI Listing
June 2018

Jizanpeptins, Cyanobacterial Protease Inhibitors from a Symploca sp. Cyanobacterium Collected in the Red Sea.

J Nat Prod 2018 06 29;81(6):1417-1425. Epub 2018 May 29.

Department of Pharmaceutical Sciences, College of Pharmacy , Oregon State University , Corvallis , Oregon 97331 , United States.

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http://dx.doi.org/10.1021/acs.jnatprod.8b00117DOI Listing
June 2018

Bioactive pyrrole alkaloids isolated from the Red Sea: marine sponge Stylissa carteri.

Z Naturforsch C 2018 Apr;73(5-6):199-210

Institut für Pharmazeutische Biologie und Biotechnologie, Heinrich-Heine-Universität, Universitätsstrasse 1, Geb. 26.23, 40225 Düsseldorf, Germany.

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http://dx.doi.org/10.1515/znc-2017-0161DOI Listing
April 2018

Cytotoxic and Antimicrobial Compounds from the Marine-Derived Fungus, Penicillium Species.

Molecules 2018 Feb 12;23(2). Epub 2018 Feb 12.

Department of Clinical Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia.

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http://dx.doi.org/10.3390/molecules23020394DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6017105PMC
February 2018

Evaluation of the antiproliferative and cytotoxic activities of marine invertebrates-derived fungi.

Pak J Pharm Sci 2017 May;30(3(Suppl.)):1001-1006

Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia / Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt.

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May 2017

Callyptide A, a new cytotoxic peptide from the Red Sea marine sponge Callyspongia species.

Nat Prod Res 2016 Dec 7;30(24):2783-2790. Epub 2016 Mar 7.

c Department of Natural Products and Alternative Medicine, Faculty of Pharmacy , King Abdulaziz Universrabiaity , Jeddah , Saudi Arabia.

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http://dx.doi.org/10.1080/14786419.2016.1155577DOI Listing
December 2016

Mirabolides A and B; New Cytotoxic Glycerides from the Red Sea Sponge Theonella mirabilis.

Mar Drugs 2016 Aug 18;14(8). Epub 2016 Aug 18.

Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia.

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http://dx.doi.org/10.3390/md14080155DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4999916PMC
August 2016

Bioactive 2(1H)-Pyrazinones and Diketopiperazine Alkaloids from a Tunicate-Derived Actinomycete Streptomyces sp.

Molecules 2016 Aug 24;21(9). Epub 2016 Aug 24.

Special Infectious Agents Unit, Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia.

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http://dx.doi.org/10.3390/molecules21091116DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6273634PMC
August 2016

New Cerebroside and Nucleoside Derivatives from a Red Sea Strain of the Marine Cyanobacterium Moorea producens.

Molecules 2016 Mar 9;21(3):324. Epub 2016 Mar 9.

Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia.

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http://dx.doi.org/10.3390/molecules21030324DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6272925PMC
March 2016

Bioactive Hydantoin Alkaloids from the Red Sea Marine Sponge Hemimycale arabica.

Mar Drugs 2015 Oct 28;13(11):6609-19. Epub 2015 Oct 28.

Department of Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia.

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http://dx.doi.org/10.3390/md13116609DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4663544PMC
October 2015

2,3-seco-2,3-dioxo-lyngbyatoxin A from a Red Sea strain of the marine cyanobacterium Moorea producens.

Nat Prod Res 2015 25;29(8):703-9. Epub 2014 Nov 25.

a Department of Natural Products , Faculty of Pharmacy, King Abdulaziz University , Jeddah 21589 , Kingdom of Saudi Arabia.

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http://dx.doi.org/10.1080/14786419.2014.982647DOI Listing
June 2015

Calotroposides H-N, new cytotoxic oxypregnane oligoglycosides from the root bark of Calotropis procera.

Steroids 2015 Apr 30;96:63-72. Epub 2015 Jan 30.

Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt. Electronic address:

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http://dx.doi.org/10.1016/j.steroids.2015.01.012DOI Listing
April 2015

Esters of the marine-derived triterpene sipholenol A reverse P-GP-mediated drug resistance.

Mar Drugs 2015 Apr 14;13(4):2267-86. Epub 2015 Apr 14.

Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA.

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http://dx.doi.org/10.3390/md13042267DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4413211PMC
April 2015

Bioactive secondary metabolites from the Red Sea marine Verongid sponge Suberea species.

Mar Drugs 2015 Mar 24;13(4):1621-31. Epub 2015 Mar 24.

Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia.

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http://dx.doi.org/10.3390/md13041621DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4413177PMC
March 2015

Identification and bioactivity of compounds from the fungus Penicillium sp. CYE-87 isolated from a marine tunicate.

Mar Drugs 2015 Mar 25;13(4):1698-709. Epub 2015 Mar 25.

Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia.

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http://dx.doi.org/10.3390/md13041698DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4413182PMC
March 2015

Urgineaglyceride A: a new monoacylglycerol from the Egyptian Drimia maritima bulbs.

Nat Prod Res 2014 18;28(19):1583-90. Epub 2014 Jun 18.

a Department of Pharmacognosy, Faculty of Pharmacy , Al-Azhar University , Assiut Branch, Assiut 71524 , Egypt.

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http://dx.doi.org/10.1080/14786419.2014.927468DOI Listing
January 2015

Didemnacerides A and B: two new glycerides from Red Sea ascidian Didemnum species.

Nat Prod Res 2014 18;28(19):1591-7. Epub 2014 Jun 18.

a Department of Pharmacognosy and Medicinal Chemistry , Faculty of Pharmacy, Taibah University , Al Madinah Al Munawwarah 41477 , Saudi Arabia.

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http://dx.doi.org/10.1080/14786419.2014.927874DOI Listing
January 2015

New fatty acids from the Red Sea sponge Mycale euplectellioides.

Nat Prod Res 2014 14;28(14):1082-90. Epub 2014 Apr 14.

a Department of Natural Products , Faculty of Pharmacy, King Abdulaziz University , Jeddah 21589 , Saudi Arabia.

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http://dx.doi.org/10.1080/14786419.2014.907286DOI Listing
November 2014

Dragmacidoside: a new nucleoside from the Red Sea sponge Dragmacidon coccinea.

Nat Prod Res 2014 15;28(15):1134-41. Epub 2014 May 15.

a Department of Natural Products and Alternative Medicine , Faculty of Pharmacy, King Abdulaziz University , Jeddah 21589 , Saudi Arabia.

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http://dx.doi.org/10.1080/14786419.2014.915828DOI Listing
November 2014

Microbial production of 1α-hydroxyvitamin D3 from vitamin D3.

Nat Prod Res 2014 23;28(7):444-8. Epub 2014 Jan 23.

a Department of Pharmacognosy , Faculty of Pharmacy, Suez Canal University , Ismailia , Egypt.

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http://dx.doi.org/10.1080/14786419.2013.872104DOI Listing
September 2014

Red Sea Suberea mollis Sponge Extract Protects against CCl4-Induced Acute Liver Injury in Rats via an Antioxidant Mechanism.

Evid Based Complement Alternat Med 2014 19;2014:745606. Epub 2014 Aug 19.

Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia.

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http://dx.doi.org/10.1155/2014/745606DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4157001PMC
September 2014

Didemnaketals f and g, new bioactive spiroketals from a red sea ascidian didemnum species.

Mar Drugs 2014 Sep 25;12(9):5021-34. Epub 2014 Sep 25.

Department of Pharmacology and Cancer Therapy & Research Center, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA.

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http://dx.doi.org/10.3390/md12095021DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4178479PMC
September 2014

Theonellamide G, a potent antifungal and cytotoxic bicyclic glycopeptide from the Red Sea marine sponge Theonella swinhoei.

Mar Drugs 2014 Apr 1;12(4):1911-23. Epub 2014 Apr 1.

Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt.

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http://dx.doi.org/10.3390/md12041911DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4012434PMC
April 2014

New alkaloids from Pancratium maritimum.

Planta Med 2013 Oct 22;79(15):1480-4. Epub 2013 Aug 22.

Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut, Egypt.

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http://dx.doi.org/10.1055/s-0033-1350741DOI Listing
October 2013

Apratoxin H and apratoxin A sulfoxide from the Red Sea cyanobacterium Moorea producens.

J Nat Prod 2013 Sep 9;76(9):1781-8. Epub 2013 Sep 9.

Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University , Corvallis, Oregon 97331, United States.

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http://dx.doi.org/10.1021/np4004992DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3969888PMC
September 2013

Bioactive compounds from the Red Sea marine sponge Hyrtios species.

Mar Drugs 2013 Mar 28;11(4):1061-70. Epub 2013 Mar 28.

Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Kingdom of Saudi Arabia.

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http://dx.doi.org/10.3390/md11041061DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3705388PMC
March 2013

A new bioactive sesquiterpenoid quinone from the Mediterranean Sea marine sponge Dysidea avara.

Nat Prod Commun 2013 Mar;8(3):289-92

Institut für Pharmazeutische Biologie und Biotechnologie, Heinrich-Heine-Universität, Universitätsstrasse 1, Geb. 26.23, 40225 Düsseldorf, Germany.

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March 2013

Subereamolline A as a potent breast cancer migration, invasion and proliferation inhibitor and bioactive dibrominated alkaloids from the Red Sea sponge Pseudoceratina arabica.

Mar Drugs 2012 Nov 8;10(11):2492-508. Epub 2012 Nov 8.

Natural Products Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Kingdom of Saudi Arabia.

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http://dx.doi.org/10.3390/md10112492DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3509531PMC
November 2012

Semisynthetic analogues of the marine cembranoid sarcophine as prostate and breast cancer migration inhibitors.

Bioorg Med Chem 2011 Aug 28;19(16):4928-34. Epub 2011 Jun 28.

Department of Basic Pharmaceutical Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201, USA.

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http://dx.doi.org/10.1016/j.bmc.2011.06.060DOI Listing
August 2011

Cyclic depsipeptides, grassypeptolides D and E and Ibu-epidemethoxylyngbyastatin 3, from a Red Sea Leptolyngbya cyanobacterium.

J Nat Prod 2011 Aug 1;74(8):1677-85. Epub 2011 Aug 1.

Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, USA.

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http://dx.doi.org/10.1021/np200270dDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3170410PMC
August 2011

Brominated arginine-derived alkaloids from the red sea sponge Suberea mollis.

J Nat Prod 2011 Jun 4;74(6):1517-20. Epub 2011 May 4.

King Fahd Center for Medical Research, King Abdulaziz University, Kingdom of Saudi Arabia.

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http://dx.doi.org/10.1021/np200120dDOI Listing
June 2011

Design of semisynthetic analogues and 3D-QSAR study of eunicellin-based diterpenoids as prostate cancer migration and invasion inhibitors.

Eur J Med Chem 2011 Apr 28;46(4):1122-30. Epub 2011 Jan 28.

Department of Basic Pharmaceutical Sciences, College of Pharmacy, University of Louisiana at Monroe, 1800 Bienville Drive, Monroe, LA 71201, USA.

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https://linkinghub.elsevier.com/retrieve/pii/S02235234110005
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http://dx.doi.org/10.1016/j.ejmech.2011.01.028DOI Listing
April 2011

3D-QSAR studies of latrunculin-based actin polymerization inhibitors using CoMFA and CoMSIA approaches.

Eur J Med Chem 2010 Sep 12;45(9):3662-8. Epub 2010 May 12.

Department of Basic Pharmaceutical Sciences, College of Pharmacy, University of Louisiana at Monroe, 1800 Bienville Dr. Monroe, LA 71201, USA.

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http://dx.doi.org/10.1016/j.ejmech.2010.05.012DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2918725PMC
September 2010

Pachycladins A-E, prostate cancer invasion and migration inhibitory Eunicellin-based diterpenoids from the red sea soft coral Cladiella pachyclados.

J Nat Prod 2010 May;73(5):848-53

Department of Basic Pharmaceutical Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, Louisiana 71201, USA.

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http://pubs.acs.org/doi/abs/10.1021/np900787p
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http://dx.doi.org/10.1021/np900787pDOI Listing
May 2010

Burkholdines 1097 and 1229, potent antifungal peptides from Burkholderia ambifaria 2.2N.

Org Lett 2010 Feb;12(4):664-6

Department of Pharmacognosy, Suez Canal University, Ismailia, Egypt 41522.

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http://dx.doi.org/10.1021/ol9029269DOI Listing
February 2010

New anti-inflammatory sterols from the Red Sea sponges Scalarispongia aqabaensis and Callyspongia siphonella.

Nat Prod Commun 2010 Jan;5(1):27-31

Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt.

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January 2010

Sipholane triterpenoids: chemistry, reversal of ABCB1/P-glycoprotein-mediated multidrug resistance, and pharmacophore modeling.

J Nat Prod 2009 Jul;72(7):1291-8

Department of Basic Pharmaceutical Sciences, College of Pharmacy, University of Louisiana, Monroe, LA 71201, USA.

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http://dx.doi.org/10.1021/np900091yDOI Listing
July 2009

Microbial metabolism of biologically active secondary metabolites from Nerium oleander L.

Chem Pharm Bull (Tokyo) 2008 Sep;56(9):1253-8

Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt.

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http://dx.doi.org/10.1248/cpb.56.1253DOI Listing
September 2008

Bioactive brominated metabolites from the red sea sponge Suberea mollis.

J Nat Prod 2008 Aug 26;71(8):1464-7. Epub 2008 Jul 26.

Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt.

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http://dx.doi.org/10.1021/np800142nDOI Listing
August 2008

Latrunculin with a highly oxidized thiazolidinone ring: structure assignment and actin docking.

Org Lett 2007 Nov 12;9(23):4773-6. Epub 2007 Oct 12.

Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt.

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http://dx.doi.org/10.1021/ol7020675DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2529398PMC
November 2007

Sipholenol A, a marine-derived sipholane triterpene, potently reverses P-glycoprotein (ABCB1)-mediated multidrug resistance in cancer cells.

Cancer Sci 2007 Sep 19;98(9):1373-80. Epub 2007 Jul 19.

Department of Pharmaceutical Sciences, College of Pharmacy and Allied Health Professions, St John's University, Jamaica, NY 11439, USA.

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http://doi.wiley.com/10.1111/j.1349-7006.2007.00554.x
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http://dx.doi.org/10.1111/j.1349-7006.2007.00554.xDOI Listing
September 2007

Reversal of P-glycoprotein-mediated multidrug resistance by sipholane triterpenoids.

J Nat Prod 2007 Jun 9;70(6):928-31. Epub 2007 May 9.

Department of Basic Pharmaceutical Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, Louisiana 71209, USA.

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http://dx.doi.org/10.1021/np0605889DOI Listing
June 2007

Hyrtiazepine, an azepino-indole-type alkaloid from the Red Sea marine sponge Hyrtios erectus.

J Nat Prod 2006 Dec;69(12):1676-9

Laboratoire de Chimie et Biochimie des Substances Naturelles, MNHN, UMR 5154 CNRS, 57 rue Cuvier (Case Postale 54), 75005 Paris, France.

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http://dx.doi.org/10.1021/np060132rDOI Listing
December 2006

Anticancer and anti-inflammatory sulfur-containing semisynthetic derivatives of sarcophine.

Chem Pharm Bull (Tokyo) 2006 Aug;54(8):1119-23

Department of Basic Pharmaceutical Sciences, College of Pharmacy, University of Louisiana at Monroe, 700 University Avenue, Monroe, LA 01209, USA.

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http://dx.doi.org/10.1248/cpb.54.1119DOI Listing
August 2006

Biocatalytic and antimetastatic studies of the marine cembranoids sarcophine and 2-epi-16-deoxysarcophine.

J Nat Prod 2006 Jul;69(7):1010-3

Department of Basic Pharmaceutical Sciences, College of Pharmacy, University of Louisiana at Monroe, 700 University Avenue, Monroe, Louisiana 71209, USA.

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http://dx.doi.org/10.1021/np050527vDOI Listing
July 2006

Quantitative determination of latrunculins A and B in the Red Sea sponge Negombata magnifica by high performance liquid chromatography.

J Chromatogr B Analyt Technol Biomed Life Sci 2006 Feb 18;832(1):47-51. Epub 2006 Jan 18.

Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt.

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http://dx.doi.org/10.1016/j.jchromb.2005.12.028DOI Listing
February 2006

Bioactive natural and semisynthetic latrunculins.

J Nat Prod 2006 Feb;69(2):219-23

Department of Basic Pharmaceutical Sciences, College of Pharmacy, University of Louisiana at Monroe, Louisiana 71209, USA.

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http://dx.doi.org/10.1021/np050372rDOI Listing
February 2006

Hurghadolide A and swinholide I, potent actin-microfilament disrupters from the Red Sea sponge Theonella swinhoei.

J Nat Prod 2006 Jan;69(1):154-7

Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt.

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http://dx.doi.org/10.1021/np050404aDOI Listing
January 2006

Antimycobacterial scalarane-based sesterterpenes from the Red Sea sponge Hyrtios erecta.

J Nat Prod 2005 Dec;68(12):1782-4

Department of Pharmacognosy and Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt.

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http://dx.doi.org/10.1021/np0502645DOI Listing
December 2005

Hyrtioerectines A-C, cytotoxic alkaloids from the red sea sponge hyrtioserectus.

Authors:
Diaa T A Youssef

J Nat Prod 2005 Sep;68(9):1416-9

Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt.

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http://pubs.acs.org/doi/abs/10.1021/np050142c
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http://dx.doi.org/10.1021/np050142cDOI Listing
September 2005

Hepatoprotective effect of flavonol glycosides rich fraction from Egyptian Vicia calcarata Desf. against CCl4-induced liver damage in rats.

Arch Pharm Res 2005 Jul;28(7):791-8

Dept. of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo, Egypt.

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http://dx.doi.org/10.1007/bf02977344DOI Listing
July 2005

Bioactive rearranged and halogenated semisynthetic derivatives of the marine natural product sarcophine.

J Nat Prod 2004 Dec;67(12):2017-23

Department of Basic Pharmaceutical Sciences, School of Pharmacy, University of Louisiana at Monroe, 700 University Avenue, Monroe, Louisiana 71209, USA.

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http://pubs.acs.org/doi/abs/10.1021/np0497393
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http://dx.doi.org/10.1021/np0497393DOI Listing
December 2004

Hyrtiosenolides A and B, two new sesquiterpene gamma-methoxybutenolides and a new sterol from a Red Sea sponge Hyrtios species.

J Nat Prod 2004 Oct;67(10):1736-9

Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt.

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http://pubs.acs.org/doi/abs/10.1021/np049853l
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http://dx.doi.org/10.1021/np049853lDOI Listing
October 2004

Tasnemoxides A-C, new cytotoxic cyclic norsesterterpene peroxides from the Red Sea sponge Diacarnus erythraenus.

Authors:
Diaa T A Youssef

J Nat Prod 2004 Jan;67(1):112-4

Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt.

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http://dx.doi.org/10.1021/np0340192DOI Listing
January 2004

On the perspectives of capillary electrophoresis modes for the determination of morphine in human plasma without sample pretreatment.

Biomed Chromatogr 2004 Jan;18(1):21-7

Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt.

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http://doi.wiley.com/10.1002/bmc.287
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http://dx.doi.org/10.1002/bmc.287DOI Listing
January 2004

Callyspongamide A, a new cytotoxic polyacetylenic amide from the Red Sea sponge Callyspongia fistularis.

J Nat Prod 2003 Jun;66(6):861-2

Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt.

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http://dx.doi.org/10.1021/np0205809DOI Listing
June 2003

Callyspongenols A-C, new cytotoxic C22-polyacetylenic alcohols from a red sea sponge, Callyspongia species.

J Nat Prod 2003 May;66(5):679-81

Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt.

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http://dx.doi.org/10.1021/np030006cDOI Listing
May 2003

Salmahyrtisol A, a novel cytotoxic sesterterpene from the Red Sea sponge Hyrtios erecta.

J Nat Prod 2002 Jan;65(1):2-6

Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt.

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http://dx.doi.org/10.1021/np0101853DOI Listing
January 2002

Sesquiterpene lactones of Centaurea scoparia.

Phytochemistry 1998 Nov;49(6):1733-1737

Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, 41522, Ismailia, Egypt

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http://dx.doi.org/10.1016/s0031-9422(98)00257-xDOI Listing
November 1998