Dr. Sabrin Ragab Mohamed Ibrahim
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Dr. Sabrin Ragab Mohamed Ibrahim

Professor
Assiut University, Egypt

Highest Degree
Ph.D. in Marine Natural Product Chemistry from Heinrich-Heine University, Germany

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Area of Interest:

Pharmacology and Toxicology
100%
Ethnopharmacology
62%
Pharmacognostics
90%
Medicinal Plants
75%
Phytochemistry
55%

Research Publications in Numbers

Books
2
Chapters
0
Articles
197
Abstracts
0

Selected Publications

  1. Sirwi, A., R.A. Shaik, A.J. Alamoudi, B.G. Eid and M.A. Elfaky et al., 2022. Mokko lactone alleviates doxorubicin-induced cardiotoxicity in rats via antioxidant, anti-inflammatory, and antiapoptotic activities. Nutrients, Vol. 14. 10.3390/nu14040733.
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  2. Omar, A.M., G.A. Mohamed and S.R.M. Ibrahim, 2022. Chaetomugilins and chaetoviridins—promising natural metabolites: Structures, separation, characterization, biosynthesis, bioactivities, molecular docking, and molecular dynamics. J. Fungi, Vol. 8. 10.3390/jof8020127.
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  3. Mohamed, G.A., S.R.M. Ibrahim, N.A. Alhakamy and O.S. Aljohani, 2022. Fusaroxazin, a novel cytotoxic and antimicrobial xanthone derivative from Fusarium oxysporum. Nat. Prod. Res., 36: 952-960.
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  4. Ibrahim, S.R.M., S.A. Fadil, H.A. Fadil, B.A. Eshmawi, S.G.A. Mohamed and G.A. Mohamed, 2022. Fungal naphthalenones; promising metabolites for drug discovery: Structures, biosynthesis, sources, and pharmacological potential. Toxins, Vol. 14. 10.3390/toxins14020154.
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  5. Ibrahim, S.R.M., G.A. Mohamed, H.M.K. Kamal, S.G.A. Mohamed and A.I.M. Khedr, 2022. Terretonins from aspergillus genus: Structures, biosynthesis, bioactivities, and structural elucidation. Mini-Rev. Org. Chem., 19: 257-269.
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  6. Ibrahim, S.R.M., A.M. Omar, A.A. Bagalagel, R.M. Diri and A.O. Noor et al., 2022. Thiophenes—naturally occurring plant metabolites: Biological activities and in silico evaluation of their potential as cathepsin D inhibitors. Plants, Vol. 11. 10.3390/plants11040539.
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  7. Ibrahim, S.R.M., A.E. Altyar, S.G.A. Mohamed and G.A. Mohamed, 2022. Genus Thielavia: Phytochemicals, industrial importance and biological relevance. Nat. Prod. Res., 36: 5108-5123.
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  8. Ibrahim, S.R.M., A.A. Bagalagel, R.M. Diri, A.O. Noor and H.T. Bakhsh et al., 2022. Exploring the activity of fungal phenalenone derivatives as potential CK2 inhibitors using computational methods. J. Fungi, Vol. 8. 10.3390/jof8050443.
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  9. Alhakamy, N.A., G.A. Mohamed, U.A. Fahmy, B.G. Eid and O.A.A. Ahmed et al., 2022. New alpha-amylase inhibitory metabolites from pericarps of Garcinia mangostana. Life, Vol. 12. 10.3390/life12030384.
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  10. Abdallah, H.M., G.A. Mohamed and S.R.M. Ibrahim, 2022. Lansium domesticum—A Fruit with multi-benefits: Traditional uses, phytochemicals, nutritional value, and bioactivities. Nutrients, Vol. 14. 10.3390/nu14071531.
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  11. Mohamed, G.A., A.M. Al-Abd, A.M. El-Halawany, H.M. Abdalla and S.R.M. Ibrahim, 2017. New xanthones and cytotoxic constituents from Garcinia mangostana fruit hulls against human hepatocellular, breast and colorectal cancer cell lines. J. Ethnopharmacol., 198: 302-312.
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  12. Ibrahim, S.R.M., G.A. Mohamed, M.F. Zayed and S.A. Ross, 2017. 8-Hydroxyirilone 5-methyl ether and 8-hydroxyirilone, new antioxidant and α-amylase inhibitors isoflavonoids from Iris germanica rhizomes. Bioorg. Chem., 70: 192-198.
    CrossRef  |  
  13. Ibrahim, S.R.M., G.A. Mohamed and S.A. Ross, 2017. Aspernolides L and M, new butyrolactones from the endophytic fungus Aspergillus versicolor. Z. Naturforsch. C., 72: 155-160.
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  14. Ibrahim, S.R.M. and G.A. Mohamed, 2017. Thiotagetin A, a new cytotoxic thiophene from Tagetes minuta. Natural Prod. Res., 31: 543-547.
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  15. Ibrahim, S.R.M. and G.A. Mohamed, 2017. Ingenine E, a new cytotoxic β-carboline alkaloid from the Indonesian sponge Acanthostrongylophora ingens. J. Asian Natural Prod. Res., 19: 504-509.
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  16. Ibrahim, S.R., H.M. Abdallah, G.A. Mohamed, M.A. Farag, K.Z. Alshali, E.A. Alsherif and S.A. Ross, 2017. Volatile oil profile of some lamiaceous plants growing in Saudi Arabia and their biological activities. Zeitschrift Naturforschung C, 72: 35-41.
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  17. Ibrahim, S.R., G.A. Mohamed, M. Khedr, I. Amgad and B.M. Aljaeid, 2017. Anti-oxidant and anti-inflammatory cyclic diarylheptanoids from Alnus japonica stem bark. Iran. J. Pharmaceut. Res., 16: 83-91.
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  18. Ibrahim, S., A. Al-Ahdal, A. Khedr and G. Mohamed, 2017. Antioxidant α-amylase inhibitors flavonoids from Iris germanica rhizomes. Rev. Brasil. Farmacogn., 27: 170-174.
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  19. Ibrahim S.R.M., G.A. Mohamed and A.I.M. Khedr, 2017. γ-Butyrolactones from Aspergillus species: Structures, biosynthesis and biological activities. Nat. Prod. Commun., 12: 791-800.
  20. Al Musayeib, N.M., S.R.M. Ibrahim, M. Amina, G.A. Al Hamoud and G.A. Mohamed, 2017. Curviflorside and curviflorin, new naphthalene glycoside and flavanol from Plicosepalus curviflorus. Zeitschrift Naturforschung C, 72: 197-201.
  21. Youssef, D.T.A., S.R.M. Ibrahim, L.A. Shaala, G.A. Mohamed and Z.M. Banjar, 2016. New cerebroside and nucleoside derivatives from a red sea strain of the marine cyanobacterium Moorea producens. Molecules, Vol. 21. 10.3390/molecules21030324.
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  22. Shaala, L.A., D.T.A. Youssef, S.R.M. Ibrahim and G.A. Mohamed, 2016. Callyptide A, a new cytotoxic peptide from the Red Sea marine sponge Callyspongia species. Nat. Prod. Res., 30: 2783-2790.
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  23. Khedr, A.I.M., S.R.M. Ibrahim, G.A. Mohamed, H.E.A. Ahmed and A.S. Ahmad et al., 2016. New ursane triterpenoids from Ficus pandurata and their binding affinity for human cannabinoid and opioid receptors. Arch. Pharm. Res., 39: 897-911.
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  24. Ibrahim, S.R.M., R. Al Haidari, G. Mohamed, E. Elkhayat and M. Moustafa, 2016. Cucumol A: A cytotoxic triterpenoid from Cucumis melo seeds. Rev. Brasil. Farmacogn., 26: 701-704.
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  25. Ibrahim, S.R.M., N.S. El-Shaer, H.Z. Asfour, K.Z. Elshali, M.I.A. Shaaban, A.A.M. Al-Attas and G.A. Mohamed, 2016. Antimicrobial, antiquorum sensing and cytotoxic activities of sesquiterpenes from Costus speciosus rhizomes. Pak. J. Pharm. Sci., (In Press). .
  26. Ibrahim, S.R.M., H.M. Abdallah, G.A. Mohamed and S.A. Ross, 2016. Integracides H-J: New tetracyclic triterpenoids from the endophytic fungus Fusarium sp. Fitoterapia, 112: 161-167.
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  27. Ibrahim, S.R.M., G.A. Mohamed, L.A. Shaala and D.T.A. Youssef, 2016. Calotroposide S, a new cytotoxic oxypregnane oligoglycoside from Calotropis procera. Rec. Nat. Prod., 10: 761-765.
  28. Ibrahim, S.R.M., G.A. Mohamed, A.I.M. Khedr and B.M. Aljaeid, 2016. Alnuheptanoid B: A new cyclic diarylheptanoid from Alnus japonica stem bark. Rec. Nat. Prod., 10: 362-368.
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  29. Ibrahim, S.R.M., G.A. Mohamed and S.M. El-Messery, 2016. In silico modeling studies of 5-HT2B antagonistic activity of 2-(2-phenylethyl) chromone derivatives from Cucumis melo seeds. Lett. Drug Design Discovery, 13: 840-844.
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  30. Ibrahim, S.R.M., G.A. Mohamed and S.A. Ross, 2016. Integracides F and G: New tetracyclic triterpenoids from the endophytic fungus Fusarium sp. Phytochem. Lett., 15: 125-130.
    CrossRef  |  
  31. Ibrahim, S.R.M., G.A. Mohamed and H.E.A. Ahmed, 2016. Aegyoxepane: A new oxepane derivative from the fungus Aspergillus aegyptiacus. Lett. Org. Chem., 13: 560-565.
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  32. Ibrahim, S.R.M., E.S. Elkhayat, G.A.A. Mohamed, S.M. Fat'hi and S.A. Ross, 2016. Fusarithioamide A, a new antimicrobial and cytotoxic benzamide derivative from the endophytic fungus Fusarium chlamydosporium. Biochem. Biophys. Res. Commun., 479: 211-216.
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  33. Ibrahim, S.R.M. and G.A. Mohamed, 2016. Tagetones A and B, new cytotoxic dimeric terpene ketones from the flowers of Tagetes minuta. Chinese J. Nat. Med., (In Press). .
  34. Ibrahim, S.R.M. and G.A. Mohamed, 2016. Pyridoacridine alkaloids from deep-water marine organisms: Structural elucidation. Bull. Facul. Pharm., 54: 107-135.
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  35. Ibrahim, S.R.M. and G.A. Mohamed, 2016. Naturally occurring naphthalenes: Chemistry, biosynthesis, structural elucidation and biological activities. Phytochem. Rev., 15: 279-295.
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  36. Ibrahim, S.R.M. and G.A. Mohamed, 2016. Marine pyridoacridine alkaloids: Biosynthesis and biological activities. Chem. Biodivers., 13: 37-47.
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  37. Ibrahim, S.R.M. and G.A. Mohamed, 2016. Ingenines C and D, new cytotoxic pyrimidine-β-carboline alkaloids from the Indonesian sponge Acanthostrongylophora ingens. Phytochem. Lett., 18: 168-171.
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  38. Ibrahim, S.R., H.M. Abdallah, A.M. El-Halawany and G.A. Mohamed, 2016. Naturally occurring thiophenes: Isolation, purification, structural elucidation and evaluation of bioactivities. Phytochem. Rev., 15: 197-220.
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  39. Elkhayat, E.S., S.R.M. Ibrahim, G.A. Mohamed and S.A. Ross, 2016. Terrenolide S, a new antileishmanial butenolide from the endophytic fungus Aspergillus terreus. Nat. Prod. Res., 30: 814-820.
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  40. Badr, J.M., S.R. Ibrahim and D.R. Abou-Hussein, 2016. Plicosepalin A, a new antioxidant catechin-gallic acid derivative of inositol from the mistletoe Plicosepalus curviflorus. Zeitschrift Naturforschung C, 71: 375-380.
    PubMed  |  Direct Link  |  
  41. Al-Haidari, R.A., M.I. Shaaban, S.R.M. Ibrahim and G.A. Mohamed, 2016. Anti-quorum sensing activity of some medicinal plants. Afr. J. Trad. Complement. Alternat. Med., 13: 67-71.
  42. Al Musayeib, N.M., S.M. Al‐Massarani, M. Amina, R.A. El Dib, G.A. Mohamed and S.R.M. Ibrahim, 2016. Periplocain A, a new naphthalene derivative from Periploca aphylla growing in Saudi Arabia. Helvetica Chim. Acta, 99: 466-468.
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  43. Youssef, D.T., L.A. Shaala, G.A. Mohamed, S.R. Ibrahim and Z.M. Banjar et al., 2015. 2,3-Seco-2,3-dioxo-lyngbyatoxin A from a Red Sea strain of the marine cyanobacterium Moorea producens. Nat. Prod. Res., 29: 703-709.
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  44. Youssef, D.T., G.A. Mohamed, L.A. Shaala, J.M. Badr, F.H. Bamanie and S.R. Ibrahim, 2015. New purine alkaloids from the Red Sea marine tunicate Symplegma rubra. Phytochem. Lett., 13: 212-217.
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  45. Mohamed, G.A., S.R. Ibrahim, E.S. Elkhayat, S.A. Ross, H.M. Sayed, S.A. El-Moghazy and M.A. El-Shanawany, 2015. Blepharisides A and B, new flavonol glycosides from Blepharis ciliaris growing in Saudi Arabia. Phytochem. Lett., 11: 177-182.
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  46. Mohamed, G.A., S.R. Ibrahim and D.T.A. Youssef, 2015. Naturally occurring didemnaketals: Structural elucidation, features and pharmacological activities. Bull. Facul. Pharm., 53: 69-76.
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  47. Khedr, A.I., G.A. Mohamed, M.A. Orabi, S.R. Ibrahim and K. Yamada, 2015. Staphylopeptide A, a new cyclic tetrapeptide from culture broth of Staphylococcus sp. Phytochem. Lett., 13: 11-14.
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  48. Ibrahim, S.R.M., E.S. Elkhayat, G.A. Mohamed, A.I. Khedr, M.A. Fouad, M.H. Kotb and S.A. Ross, 2015. Aspernolides F and G, new butyrolactones from the endophytic fungus Aspergillus terreus. Phytochem. Lett., 14: 84-90.
    CrossRef  |  
  49. Ibrahim, S.R.M. and G.A. Mohamed, 2015. Naphthylisoquinoline alkaloids potential drug leads. Fitoterapia, 106: 194-225.
    CrossRef  |  
  50. Ibrahim, S.R.M. and G.A. Mohamed, 2015. Litchi chinensis: Medicinal uses, phytochemistry and pharmacology. J. Ethnopharmacol., 174: 492-513.
    CrossRef  |  
  51. Ibrahim, S.R.M. and G.A. Mohamed, 2015. Cucumin S, a new phenylethyl chromone from Cucumis melo var. reticulates seeds. Rev. Brasil. Farmacogn., 25: 462-464.
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  52. Ibrahim, S.R., G.A. Mohamed, M.M. Abdel‐Latif, S.M. El‐Messery, N.M. Al Musayeib and I.A. Shehata, 2015. Minutaside A, new &alphaq;‐amylase inhibitor flavonol glucoside from Tagetes minuta: Antidiabetic, antioxidant and molecular modeling studies. Starch‐Starke, 67: 976-984.
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  53. Ibrahim, S.R., G.A. Mohamed, M.F. Zayed and H.M. Sayed, 2015. Ingenines A and B, two new alkaloids from the Indonesian sponge Acanthostrongylophora ingens. Drug Res., 65: 361-365.
    PubMed  |  Direct Link  |  
  54. Ibrahim, S.R., G.A. Mohamed, L.A. Shaala, L.M.Y. Banuls, R. Kiss and D.T.A. Youssef, 2015. Calotroposides H-N, new cytotoxic oxypregnane oligoglycosides from the root bark of Calotropis procera. Steroids, 96: 63-72.
    CrossRef  |  Direct Link  |  
  55. Ibrahim, S.R., G.A. Mohamed, A.M. Moharram and D.T. Youssef, 2015. Aegyptolidines A and B: New pyrrolidine alkaloids from the fungus Aspergillus aegyptiacus. Phytochem. Lett., 12: 90-93.
    Direct Link  |  
  56. Ibrahim, S.R. and G.A. Mohamed, 2015. Natural occurring 2-(2-phenylethyl) chromones, structure elucidation and biological activities. Nat. Prod. Res., 29: 1489-1520.
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  57. Hani, A.Z., I.R.M. Sabrin and M.A. Gamal, 2015. Antimicrobial activity of extracts and compounds isolated from Cassia italic aerial parts. Int. J. Phytopharm. Res., 6: 95-100.
  58. Gamal, M.A., K.M. Hani and I.R. Sabrin, 2015. A review: Compounds isolated from Cyperus species (Part II): Terpenoidal. Int. J. Pharmacogn. Phytochem. Res., 7: 83-99.
    Direct Link  |  
  59. Gamal, M., K.M. Hani, E.S. Sameh and I.R. Sabrin, 2015. A review: Compounds isolated from Cyperus species (Part I): Phenolics and nitrogenous. Int. J. Pharmacogn. Phytochem., 7: 51-67.
    Direct Link  |  
  60. El-Shanawany, M.A., H.M. Sayed, S.R.M. Ibrahim and M.A.A. Fayed, 2015. Stigmasterol tetracosanoate, a new stigmasterol ester from the Egyptian Blepharis ciliaris. Drug Res., 65: 347-353.
  61. Al-Attas, A.A.M., N.S. El-Shaer, G.A. Mohamed, S.R.M. Ibrahim and A. Esmat, 2015. New anti-inflammatory sesquiterpenes from the rhizomes of Costus speciosus. J. Ethnopharmacol., 176: 365-374.
  62. Youssef, D.T., L.A. Shaala, G.A. Mohamed, J.M. Badr, F.H. Bamanie and S.R. Ibrahim, 2014. Theonellamide G, a potent antifungal and cytotoxic bicyclic glycopeptide from the Red Sea marine sponge Theonella swinhoei. Mar. Drugs, 12: 1911-1923.
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  63. Shaala, L.A., D.T. Youssef, S.R. Ibrahim, G.A. Mohamed, J.M. Badr, A.L. Risinger and S.L. Mooberry, 2014. Didemnaketals F and G, new bioactive spiroketals from a Red sea ascidian Didemnum species. Mar. Drugs, 12: 5021-5034.
    Direct Link  |  
  64. Mostafa, F.A., M.A. Gamal, I.R. Sabrin and E.S. Ehab, 2014. Antioxidant and anti-inflamatory activities of phenolic constituents from Primula elatior L. Aerial part. Int. J. Pharmacogn. Phytochem. Res., 6: 74-78.
    Direct Link  |  
  65. Mohamed, G.A., S.R. Ibrahim, N.M. Al-Musayeib and S.A. Ross, 2014. New anti-inflammatory flavonoids from Cadaba glandulosa Forssk. Arch. Pharm. Res., 37: 459-466.
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  66. Mohamed, G.A., S.R. Ibrahim, M.S. Abdelkader, N.M. Al-Musayeib, M. Ghoneim and S.A. Ross, 2014. Zeaoxazolinone, a new antifungal agent from Zea mays roots. Med. Chem. Res., 23: 4627-4630.
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  67. Mohamed, G.A., S.R. Ibrahim, M.I. Shaaban and S.A. Ross, 2014. Mangostanaxanthones I and II, new xanthones from the pericarp of Garcinia mangostana. Fitoterapia, 98: 215-221.
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  68. Mohamed, G.A., S.R. Ibrahim, L.A. Shaala, K.Z. Alshali and D.T. Youssef, 2014. Urgineaglyceride A: A new monoacylglycerol from the Egyptian Drimia maritime bulbs. Natural Prod. Res., 28: 1583-1590.
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  69. Mohamed, G.A., S.R. Ibrahim, J.M. Badr and D.T. Youssef, 2014. Didemnaketals D and E, bioactive terpenoids from a Red Sea ascidian Didemnum species. Tetrahedron, 70: 35-40.
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  70. Mohamed, G.A., S.R. Ibrahim, E.S. Elkhayat and R.S. El Dine, 2014. Natural anti-obesity agents. Bull. Facult. Pharm., 52: 269-284.
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  71. Mohamed, G.A., S.R. Ibrahim and R.A. Al Haidari, 2014. A review on natural contraceptive agents. Am. J. PharmTech Res., 4: 124-158.
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  72. Ibrahim, S.R., M.A. Fouad, A. Abdel-Lateff, T. Okino and G.A. Mohamed, 2014. Alnuheptanoid A: A new diarylheptanoid derivative from Alnus japonica. Natural Prod. Res., 28: 1765-1771.
    Direct Link  |  
  73. Ibrahim, S.R., K.Z. Alshali, M.A. Fouad, E.S. Elkhayat, R.A. Al Haidari and G.A. Mohamed, 2014. Chemical constituents and biological investigations of the aerial parts of Egyptian Clerodendrum inerme. Bull. Facult. Pharm., 52: 165-170.
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  74. Ibrahim, S.R., G.A. Mohamed, L.A. Shaala, L. Moreno, Y. Banuls, R. Kiss and D.T.A. Youssef, 2014. Proceraside A, a new cardiac glycoside from the root barks of Calotropis procera with in vitro anticancer effects. Natural Prod. Res., 28: 1322-1327.
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  75. Ibrahim, S.R., G.A. Mohamed, L.A. Shaala, D.T. Youssef and A.A. Gab-Alla, 2014. Didemnacerides A and B: Two new glycerides from Red sea ascidian Didemnum species. Natural Prod. Res., 28: 1591-1597.
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  76. Ibrahim, S.R., G.A. Mohamed, L.A. Shaala and D.T. Youssef, 2014. Non-alkaloidal compounds from the bulbs of the Egyptian plant Pancratium maritimum. Zeitschrift Naturforschung C, 69: 92-98.
    PubMed  |  
  77. Ibrahim, S.R., 2014. New chromone and triglyceride from Cucumis melo seeds. Natural Prod. Commun., 9: 205-208.
    Direct Link  |  
  78. Elkhayat, E.S., S.R. Ibrahim, M.A. Fouad and G.A. Mohamed, 2014. Dendronephthols A-C, new sesquiterpenoids from the Red Sea soft coral Dendronephthya sp. Tetrahedron, 70: 3822-3825.
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  79. El-Shanawany, M.A., H.M. Sayed, S.R. Ibrahim and M.A. Fayed, 2014. New nitrogenous compounds from Anisotes trisulcus. Zeitschrift Naturforschung C, 69: 209-218.
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  80. El-Shanawany, M.A., H.M. Sayed, S.R. Ibrahim and M.A. Fayed, 2014. Chemical constituents, anti-inflammatory, and antioxidant activities of Anisotes trisulcus. Bull. Facul. Pharm., 52: 9-14.
    CrossRef  |  
  81. Al-Musayeib, N.M., G.A. Mohamed, S.R. Ibrahim and S.A. Ross, 2014. New thiophene and flavonoid from Tagetes minuta leaves growing in Saudi Arabia. Molecules, 19: 2819-2828.
    Direct Link  |  
  82. Al Musayeib, N.M., R.A. Mothana, S.R.M. Ibrahim, A.A. El Gamal and S.M. Al-Massarani, 2014. Klodorone A and klodorol A: new triterpenes from Kleinia odora Nat. Prod. Res., 28: 1142-1146.
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  83. Al Musayeib, N.M., R.A. Mothana, G.A. Mohamed, S.R. Ibrahim and L. Maes, 2014. Hypoestenonols A and B, new fusicoccane diterpenes from Hypoestes forskalei. Phytochem. Lett., 10: 23-27.
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  84. Sabrin, R.M. Ibrahim, G.A. Mohamed, E.S. Elkhayat, M.A. Fouad and P. Proksch, 2013. Sagitol C, a new cytotoxic pyridoacridine alkaloid from the sponge Oceanapia sp. Bull. Facu. Pharm., 51: 292-332.
  85. Mohamed, G.A., S.R. Ibrahim and S.A. Ross, 2013. New ceramides and isoflavone from the Egyptian Iris germanica L. rhizomes. Phytochem. Lett., 6: 340-344.
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  86. Ibrahim, S.R., G.A. Mohamed, Z.M. Banjar and H.K. Kamal, 2013. Natural antihyperlipidemic agents: Current status and future perspectives. Phytopharmacology, 4: 492-531.
    Direct Link  |  
  87. Ibrahim, S.R., G.A. Mohamed, L.A. Shaala, D.T. Youssef and K.A. El Sayed, 2013. New alkaloids from Pancratium maritimum. Planta Medica, 79: 1480-1484.
  88. El-Shanawany, M.A., H.M. Sayed, S.R. Ibrahim, M.A. Fayed, M.M. Radwan and S.A. Ross, 2013. A new isoflavone from Blepharis ciliaris of an Egyptian origin. Med. Chem. Res., 22: 2346-2350.
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  89. Ali, A.A., H.M. Sayed, S.R. Ibrahim and A.M. Zaher, 2013. Chemical constituents, antimicrobial, analgesic, antipyretic and anti-inflammatory activities of Euphorbia peplus L. Phytopharmacology, 4: 69-80.
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  90. Al-Musayeib, N.M., G.A. Mohamed, S.R. Ibrahim and S.A. Ross, 2013. Lupeol-3-O-decanoate, a new triterpene ester from Cadaba farinose Forssk. growing in Saudi Arabia. Med. Chem. Res., 22: 5297-5302.
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  91. Ibrahim, S.R., G.A. Mohamed, L.A. Shaala, L.M.Y. Banuls, G. Van Goietsenoven, R. Kiss and D.T. Youssef, 2012. New ursane-type triterpenes from the root bark of Calotropis procera. Phytochem. Lett., 5: 490-495.
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  92. Ibrahim, S.R., G.A. Mohamed and N.M. Al-Musayeib, 2012. New constituents from the rhizomes of Egyptian Iris germanica L. Molecules, 17: 2587-2598.
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  93. Ibrahim, S.R., 2012. Diacarperoxide S, new norterpene cyclic peroxide from the sponge Diacarnus megaspinorhabdosa. Natural Prod. Commun., 7: 9-12.
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  94. Elkhayat, E.S., G.A. Mohamed and S.R.M. Ibrahim, 2012. Activity and structure elucidation of ceramides. Curr. Bioact. Compd, 8: 370-409.
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  95. El-Khayat, E.S., S.R.M. Ibrahim and G.A. Mohamed, 2012. Plant endophytes, renewable source of new natural products. Nat. Prod. J., 2: 225-234.
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  96. Ali, A.A., H.M. Sayed, S.R.M. Ibrahim and A.M. Zaher, 2012. Macro-and micromorphology of the root, stem, leaf, inflorescence and fruit of Euphorbia peplus L. growing in Egypt. Bull. Pharm. Sci., Assiut Univ., 35: 109-126.
  97. Ross, S.A., M.A. El-Shanawany, G.A. Mohamed, A.M. Nafady, S.R. Ibrahim and M.M. Radwan, 2011. Antifungal activity of xanthones from Centaurium spicatum (Gentianaceae). Planta Med., Vol. 77. 10.1055/s-0031-1273572.
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  98. El-Shanawany, M.A., H.M. Sayed, S.R. Ibrahim and M.A. Fayed, 2011. 5-hydroxy vasentine, a new pyrroloquinazoline alkaloids from Anisotes trisulcus (Forssk.) nees. J. Natural Prod. Plant Resour., 1: 80-85.
  99. El-Shanawany, M.A., G.A. Mohamed, A.M. Nafady, S.R. Ibrahim, M.M. Radwan and S.A. Ross, 2011. A new xanthone from the roots of Centaurium spicatum. Phytochem. Lett., 4: 126-128.
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  100. Ibrahim, S.R.M.,C.C. Min, F. Teuscher, R. Ebel and C. Kakoschke et al., 2010. Callyaerins A-F and H, new cytotoxic cyclic peptides from the Indonesian marine sponge Callyspongia aerizusa. Bioorg. Med. Chem., 18: 4947-4956.
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  101. Ibrahim, S.R., 2010. New 2-(2-phenylethyl) chromone derivatives from the seeds of Cucumis melo L. var. reticulatus. Natural Prod. Commun., 5: 403-406.
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  102. Mohamed, G.A., S.R.M. Ibrahim and H.M. Sayed, 2009. Phenolic constituents of Cucurbita pepo L. cv 'Eskandrani' (summer squash) flowers. Bull. Pharm. Sci., 32: 311-319.
  103. Mohamed, G.A., A. Abdel-Lateff, M.A. Fouad, S.R. Ibrahim, E.S. Elkhayat and T. Okino, 2009. Chemical composition and hepato-protective activity of Imperata cylindrical Beauv. Pharmacogn. Mag., 5: 28-36.
  104. Ibrahim, S.R.M., G.A. Mohamed, M.A. Fouad, E.S. El-Khayat and P. Proksch, 2009. Iotrochotamides I and II: New ceramides from the Indonesian sponge Iotrochota purpurea. Nat. Prod. Res. Part A, 23: 86-92.
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  105. Ibrahim, S.R., R. Edrada-Ebel, G.A. Mohamed, D.T. Youssef, V. Wray and P. Proksch, 2008. Callyaerin G, a new cytotoxic cyclic peptide from the marine sponge Callyspongia aerizusa. Arkivoc, 12: 164-171.
  106. Ibrahim, S.R., R. Ebel, V. Wray, W.E. Muller, R. Edrada-Ebel and P. Proksch, 2008. Diacarperoxides, norterpene cyclic peroxides from the sponge Diacarnus megaspinorhabdosa. J. Natural Prod., 71: 1358-1364.
    Direct Link  |  
  107. Ibrahim, S.R., R. Ebel and P. Proksch, 2008. Acanthomine A, a new pyrimidine-&betap;-carboline alkaloid from the sponge Acanthostrongylophora ingens. Natural Prod. Commun., 3: 175-178.
  108. Ibrahim, S.R., G.A. Mohamed, E.S. Elkhayat, Y.G. Gouda and P. Proksch, 2008. Strepsiamide A-C, new ceramides from the marine sponge Strepsichordaia lendenfeldi. Nat. Prod. Commun., 3: 205-209.
  109. Elkhayat, E.S., S.R. Ibrahim and M.A. Aziz, 2008. Portulene, a new diterpene from Portulaca oleracea L. J. Asian Nat. Prod. Res., 10: 1039-1043.
    PubMed  |  
  110. Youssef, D.T., M.A. Ramadan, S.R. Ibrahim and J.M. Badr, 2007. Cytotoxic sesquiterpene lactones of egyptian Tanacetum santolinoides. Nat. Prod. Commun., 2: 795-798.
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  111. Mohamed, G.A. , and S.R. Ibrahim, 2007. Eucalyptone G, a new phloroglucinol derivative and other constituents from Eucalyptus globules Labill. Arkivoc, 15: 281-291.
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  112. Ibrahim, S.R., J.M. Badr, K.A. El Sayed and D.T. Youssef, 2007. A new cytotoxic sesquiterpene and three anti-inflammatory flavonoids of the Egyptian Tanacetum santolinoides. Nat. Prod. Commun., 2: 1071-1074.
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  113. Edrada, R.A., S.R.M. Ibrahim, R. Ebel, V. Wray, W.E.G. Muller and P. Proksch, 2006. New norterpene cyclic peroxides from the sponge Diacarnus megaspinorhabdosa. Planta Med., Vol. 72. .
  114. Abdel-Hafiz, M.A., M.A. Ramadan, E.K. Desoky and S.R.M. Ibrahim, 2000. Macro- and micromorphology of Crinum asiaticum Linn. cultivated in Egypt. Part II: The inflorescence. Bull. Pharm. Sci., Assiut Univ., 23: 24-35.
  115. Abdel-Hafiz, M.A., M.A. Ramadan, E.K. Desoky and S.R.M. Ibrahim, 1999. Macro- and micromorphology of Crinum asiaticum Linn. cultivated in Egypt. Part I: Roots, bulbs and leaves. Bull. Pharm. Sci., Assiut Univ., 22: 147-153.