Dr. Sahar Saad El-Din Ahmed El-Nahta
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Dr. Sahar Saad El-Din Ahmed El-Nahta

National Research Center, Egypt

Highest Degree
Ph.D. in Animals Molecular Genetic from Cairo University, Egypt

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Dr. Sahar Saad El-Din Ahmed El-Nahta is currently working as a Professor of Biotechnology and Molecular Genetics at the National Research Center, Egypt. She has completed her Ph.D. in Animals Molecular Genetic from Cairo University, Egypt. Previously she was appointed as Associate Researcher at Utrecht University, Netherlands, and Research Assistant at National Research Center. Main activities and responsibilities: Cytogenetic assay and molecular toxicology of drugs, food, and medicinal plants. Environmental Genetics and molecular toxicology. biotechnology, genetic diversity, and molecular genetics. Attenuated and DNA vaccine, Molecular disease diagnosis, Recombinant DNA technology, SNP chip analysis, Phylogenetic analysis.Book Publication: Sahar Saad El-din Ahmed (2014):
Evaluation of toxic risk in drug therapy.

Area of Interest:

Animal and Veterinary Sciences
Molecular Genetics
Infection and Disease
Breeding and Genetics
Veterinary Molecular Biology

Research Publications in Numbers


Selected Publications

  1. Colli, L., M. Milanesi, E. Vajana, D. Iamartino and L. Bomba et al., 2018. New insights on water buffalo genomic diversity and post-domestication migration routes from medium density SNP chip data. Front. Genet., Vol. 9. 10.3389/fgene.2018.00053.
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  2. Mahmoud, M.A.E.F., M.K. Elbayoumy, D. Sedky and S. Ahmed, 2017. Serological investigation of some important RNA viruses affecting sheep and goats in Giza and Beni-Suef governorates in Egypt. Vet. World, 10: 1161-1166.
    CrossRef  |  Direct Link  |  
  3. Ahmed, S.S., S.M. Abdel-Rahman and P.J. Grobler, 2017. Allelic diversity of DQA2 exon 2 gene in Egyptian goat populations. Indian J. Anim. Res. 10.18805/ijar.v0iOF.7660.
    CrossRef  |  Direct Link  |  
  4. Ahmed, S., P. Grobler, T. Madisha and A. Kotze, 2017. Mitochondrial D-loop sequences reveal a mixture of endemism and immigration in Egyptian goat populations. Mitochondrial DNA Part A, 28: 711-716.
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  5. Ahmed, S., S. Abdel-Rahman, P. Grobler and A. Kotze, 2016. Allelic diversity of DQA2 exon 2 gene in Egyptian goat populations. Indian J. Anim. Res., .
  6. Ahmed, S., M.S. Abdel-Salam, S.S. Hafez and W. Nemr, 2016. Molecular characterization of Pasteurella multocida isolated from rabbit in Egypt. Am. J. Biochem. Mol. Biol., 6: 53-59.
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  7. Ahmed, S., B. Ahmed, G. Mahmoud, W. Nemr and E. Abdel Rahim, 2016. Comparative study between formalin-killed vaccine and developed gamma irradiation vaccine against Mannheimia haemolytica in rabbits. Turk. J. Vet. Anim. Sci., 40: 219-224.
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  8. Abdl-Kaffy, E.M., I.S. Ghaly, M.B. Larbi, S.S. Ahmed, Y.K. Badawi and N.S. Hassan, 2016. Genetic diversity and phenotype characterization of native rabbit in Middle-Egypt. J. New Sci.-Agric. Biotechnol., 16: 1312-1320.
    Direct Link  |  
  9. Ghaly, I.S., S.S. Ahmed and S.H. Salah, 2015. Cytogenetic and biochemical studies of Testonon effects as a body building agent in rats. Int. J. Pharmaceut. Sci. Rev. Res., 32: 46-54.
    Direct Link  |  
  10. Ghaly, I.S., H.A. Radwan, A. Abd ElRaouf and S.S. Ahmed, 2015. Evaluation of the protective effect of chitosan in mice treated with cyclophosphamide using genotoxic assays and biochemical markers. World J. Pharmaceut. Res., 4: 75-92.
    Direct Link  |  
  11. Ahmed, S., B.S. Ahmed, G.I. Mahmoud, W. Nemr and E.A. Abdel-Rahim, 2015. Development of gamma irradiation vaccine against Mannheimia haemolytica: A preliminary study. Res. J. Immunol., 8: 17-26.
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  12. Ahmed, B.S., S. Ahmed, G.I. Mahmoud, W. Elnamer and E.A. Abdel-Rahim, 2014. Biochemical evaluation of mannheimia haemolytica formaline killed vaccine. J. Biol. Chem., 9: 277-289.
  13. Gabbianelli, F., L. Pariset, E.O. Othman, M. Mariotti, S. Ahmed, E.M. Balabel, and M. Gargani, 2013. Genetic characterization of sheep breeds of Egypt and Italy. Ital. J. Anim. Sci., .
  14. El-Halawany, N., A.Z. Barakat, I.S. Ghaly and S. Ahmed, 2013. Pharmacogenomics and biochemical influences of Walnuts on diabetic tissue. Open Drug Saf. J., 4: 3-10.
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  15. Ahmed, S.S. and I. Gahly, 2012. Evaluation of mutagenic effect of two anti-obesity drugs on mice's genetic materials. Drug Chem. Toxicol., 35: 445-449.
    PubMed  |  Direct Link  |  
  16. Ahmed, S.S., K. Abd-El-Aziz, N. Hassan and D. Mabrok, 2011. Genetic polymorphism of some genes related to reproductive trait and their association with calving interval period in Egyptian buffalo. Genomics Quantitative Genet., 3: 1-8.
  17. Othman, O.E. and S.S. Ahmed, 2010. Genetic polymorphism of BoLA-DRB3 exon 2 in Egyptian buffalo. Genes Genomes Genomics, 4: 70-73.
  18. Ahmed, S.S. and O.E. Othman, 2009. Genotyping analysis of milk protein genes in different goat breeds reared in Egypt. J. Genet. Eng. Biotechnol., 7: 33-39.
    Direct Link  |  
  19. Ahmed, S. and O.E. Othman, 2009. Genotyping analysis of milk genes in different goat breeds reared in Egypt. J. Genet. Eng. Biotechnol., 7: 1-7.
  20. Othman, O.E. and S.S. Ahmed, 2007. Genotyping of the caprine kappa-casein variants in Egyptian breeds. Int. J. Dairy Sci., 2: 90-94.
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  21. Othman, O.E. and S. Ahmed, 2006. Analysis of genetic polymorphisms in the Egyptian goats CSN1S2 using polymerase chain reaction. J. Boil. Sci., 6: 238-241.
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  22. Ahmed, S.S., 2006. Identification of egyptian goat α S1-casein alleles using PCR-RFLP method. Int. J. Dairy Sci., 1: 27-31.
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  23. Ahmed, S.S. and O.E. Othman, 2006. The characterization of HaeIII patterns in the second exon of the buffalo MHC class II DRB gene. Biotechnology, 5: 514-516.
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  24. Ahmed, S.S. and O.E. Othman, 2006. A PCR-RFLP method for the analysis of Egyptian goat MHC Class II DRB gene. Biotechnology, 5: 58-61.
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  25. Ahmed, S., 2005. New classes of fragile sites in buffalo chromosomes. Cytologia, 70: 415-419.
  26. Ahmed, S. and O.E. Othman, 2005. Detection of goat β-lactoglobulin genotypes using restriction fragment length polymorphism. J. Genet. Eng. Biotechnol., 3: 31-41.
  27. Othman, O.E. and S. Ahmed, 2004. Cytogenetic effects of the trypanocidal drug berenil in blood cultures of river buffalo. J. Biol. Sci., 4: 180-184.
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  28. Ahmed, S. and O.E. Othman, 2004. Cytogenetic studies on two drugs for natural relief of prostatic disorders. Cytologia, 69: 275-284.
    Direct Link  |  
  29. Ahmed, S. and O.E. Othman, 2003. Clastogenic effects of the fasciolicide drug fasinex on river buffalo lymphocyte cultures in vitro. Mutat. Res., 541: 115-121.
    CrossRef  |  
  30. El-Miniawy, H., S. Ahmed, H. El-Shewy, A. Hassan and I.B. Shaheed, 2001. Pathological, clinicopathological and mutagenetic effect of Dimethyle Diphenyl Bicarboxylate (DDB) and its activity against carbon tetrachloride toxicity in albino rats. J. Egypt. Vet. Med. Assoc., 61: 78-84.
  31. El-Miniawey, H., S. Ahmed and A.G. Kamel, 2001. Cytogenetic and pathological study of deep pyoderma in the dog. J. Egypt. Vet. Med. Assoc., 61: 103-113.
  32. Ahmed, S., 2001. Sister chromatid exchanges in Egyptian water buffalo. Buffalo J., 1: 129-136.
  33. Ahmed, S. and M. Ahmed, 2001. Chromosomal aberrations induced by some industrial waste products in dairy cattle. J. Egypt. German Soc. Zool., 34: 64-70.
  34. Mahrous, K. and S. Ahmed, 2000. Fragile sites in Egyptian water buffalo. Cytologia, 65: 313-317.
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  35. Ahmed, S., 2000. Cytogenetic study on repeat breeder buffalo chromosomes. Suez Canal Vet. Med. J., 3: 765-773.
  36. Ahmed, S. and E. Hala, 2000. Measurement of micronuclei by cytokinesis-block method in buffalo lymphocytes. Cytologia, 65: 319-324.
  37. Ahmed, S., K. Mahrous and H. El-Sobhy, 1998. Cytogenetic study of buffalo under pollution of environmental conditions. Mutat. Res., 419: 21-26.
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