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el-Tookhy, O. S., A. A. Shamaa, and A. N. Abdallah, "Ethidium Bromide Induced Spinal Cord Demyelination in a Multiple Sclerosis Dog", Bioscience Research , vol. 15, issue 3, 2018.
Elawady, M. A., M. M. Elmaghrabi, N. Ebrahim, M. A. Elawady, D. Sabry, A. Shamaa, and Alyaa, "Therapeutic Potential of Bone Marrow Derived Mesenchymal Stem Cells in Modulating Astroglyosis of Surgical Induced Experimental Spinal Cord Injury", Advances in Bioscience and Biotechnology, vol. 07, issue 06, 2016.
Elham A. Hassan, Faisal A. Torad, O. S. el-Tookhy, and A. A. Shamaa, "Canine Neonatal Transcranial Ultrasonography from Birth until Closure of Bregmatic Fontanelle. ", Topics in Companion Animal Medicine, 30(2015); 5-9, 2015.
Elham A. Hassan, Faisal A. Torad, and A. A. Shamaa, "Pneumopericardium secondary to pneumomediastinum in Golden Retriever dog.", Topics in Compan Anim Medicine 30;62-64. , 2015.
Elham A. Hassan, A. I. Abdelgalil, Faisal A. Torad, and A. A. Shamaa, "Ultrasonographic Examination of the Mammary Glands of Lactating Jennies (Equus asinus). ", Pakistan Veterinary Journal 10/2015, 2015.
Faisal A. Torad, Ashraf A. Shamaa, Dina S. Abdel Fatah, Laila A. Rashed, and S. M. D. G. M. M. and Magdy Abdelhamid, "Long term evaluation of human umbilical cord blood mesenchymal stem cells in the management of total coronary occlusion in dogs (experimental study). ", Asian Journal of Animal Sciences; 9(6):266-279., 2015.
Farghali, H. A., K. K. Ali, and A. A. Shamaa, "Incidence of the Most Common Surgical Affections among Sheep and Goats Admitted to a Referral Hospital in the State of Kuwait", Advances in Animal and Veterinary Sciences,, vol. 8, issue 2, pp. 41-57, 2020.
Gaafer, T., H. A. Dina Sabry, H. M. A. Sohair Mahfouz, A. A. Shamaa, and M. Ahmed, "Angiogenesis in rat ischemic hindlimb: role of human bone marrow-derived mesenchymal stem cells transplantation. ", Stem Cell Research & Therapy, 2012.
Ghallaba, M. A., A. G. Aziz, A. A. Shamaa, and F. A. Mohamed, "Effect of pulsed electromagnetic field on ejection fraction after induced myocardial infarction ", Bioscience Research , issue April 15, 2018., 2018.
Hafez, M. A. E. D., A. A. Shamaa, and A. A. M. Salem, A tool for custom-made instruments and implant for artificial knee joint of dogs, : US Patent App. 15 , 2018.
Hafez, M., A. Moghny, and A. Shamaa, "Custom made Implant and Patient Specific instruments for dog knee replacement", CAOS 2017 , Canada, 2017.
Hassan;, M. H., E. H.; O. E. -tookhyA. S. Ashraf A. Shamaa, D. S. Abdelfatah;, and G. G. Shehab, "Role of hepatocyte differentiated mesenchymal stem cells in treatment of experimentally induced liver cirrhosis.", Asian J. Anim. Sci., 10 (2): 120-130, 2016.
Hasssan, M. H.; O. E. -tookhy; E. H. S. A., D. S. Abdelfatah, G. G. Shehab, and A. A. Shamaa, "A canine model of carbon tetrachloride (CCl4) induced liver cirrhosis: II. Ultrasongraphic and histopathological study. ", Veterinary Medical Journal Giza (VMJG),, vol. 62(1).6-13 January., 2016.
Ismail, D. I., A. M. Shamseldeen, L. A. Rashed, A. A. E. D. Shama, S. S. Ashour, and A. G. Aboulkhair, "Cardioprotective Potential of Zinc and Vitamin E Against Isoprenaline-Induced Myocardial Infarction in Albino Rats by Targeting Autophagy:A Histological and Biochemical Study", Egyptian Journal of Histology, issue August 2020, 2020.
Magdi Abd El Hamid, H. A. M., D. Sabry, A.A.Shamaa, and D. Gharib, "Endothelial Progenitor Cells and Development of Collateral Formation in Patients with Chronic Total Coronary Artery Occlusion and Transplantation of Epcs in an Experimental Model", Cardiovascular Research Techniologies2012-Washington hospital Center, 2012.
Mahmoud, M. M., E. Hassan, L. A. Rashed, and A. Shamaa, "Increase Renal CYP2C23 Expression Using Thiazide Diuretics Attenuate the Progression of Cardiovascular Disease in Rat Model of Chronic Renal Failure", Med. J. Cairo Univ, vol. 86, issue 5, pp. 2511-2519, 2018.
Mahmoud, M., A. Shamseldeen, L. Rashed, faresamal, A. Shamaa, and D. Gharib, "Contribution of Volume Overload to Progression of Cardiovascular Diseases in Rat Model of Chronic Kidney Disease", Canadian Journal of Physiology and Pharmacology, vol. 4, 2018.
Mohammed S. Amer, Elham A. Hassan, A. A. Shamaa, and E. A. eLsherpieny, "Sequential Canine Neonatal Spinal Ultrasonography from Birth till Spinal Ossification. ", Pakistan Veterinary Journal 05/2015, 2015.
Omar S. El-Tookhy1, Ashraf A. Shamaa1, G. S. 2 A. A. 2 O. A. 3G. N. M., "Histological evaluation of experimentally induced critical size defect skin wounds using exosomal solution of mesenchymal stem cells derived microvesicles.", International journal of stem cells, septamper, 2017.
S., G., E. - K. M., A. M.S., and A. A. Shamaa, "Equine limbs Fractures: The Incidence and Management . ", Minufiya Veterinary Journal Vol. 8 (1): 247-261, 2014.
S.Ahmed, A., A. A. Shamaa, and E. A. Hassan, "Sternal cartilage autograft for repair of full-thickness articular cartilage defect: An experimental study on equine model. Part 2: Histopathological, histochemical and biochemical study. ", 2nd International Conference and Exhibition on Orthopedics & Rheumatology August 19-21, Embassy Suites , Las Vegas, USA, 2013.
Sabry, D., A. Mostafa, S. Marzouk, W. Ibrahim, H. H. M. Ali, A. Hassan, and A. Shamaa, "Neupogen and mesenchymal stem cells are the novel therapeutic agents in regeneration of induced endometrial fibrosis in experimental rats.", Bioscience reports, vol. 37, issue 5, 2017 Oct 31. Abstract

Endometrial fibrosis is the presence of intrauterine adhesions (IUAs) after any uterine surgery or curettage and it results in infertility and recurrent pregnancy loss. We evaluated the role of human mesenchymal stem cells (hMSCs) as a therapeutic agent of endometrial fibrosis. We also compared the effect of MSCs with the effect of estrogen and neupogen either each alone or as a combined therapy with MSCs. This experimental study was performed on 84 albino rats which were divided into seven groups (=12 rats/group) as follows, 1: normal control rats, 2: induced fibrosis, 3: induced fibrosis that received oral estrogen, 4: induced fibrosis that received hMSCs, 5: induced fibrosis that received hMSCs and estrogen, 6: induced fibrosis that received neupogen, and 7: induced fibrosis that received hMSCs and neupogen. The extent of fibrosis, vascularization, and inflammation were evaluated by; qRT-PCR for interleukin 1 (IL-1), interleukin 6 (IL-6), TNF, vascular endothelial growth factor (VEGF), transforming growth factor-β (TGF-β), and RUNX; ELISA for connective tissue growth factor (CTGF); Western blotting for collagen-I; immunohistochemistry examination for VEGF and RUNX-2; and histopathological assessment. In therapeutic groups either by hMSCs alone or combined with estrogen or neupogen; fibrosis and inflammation (IL-1, IL-6, TNF, TGF-β, RUNX, CTGF, and collagen-I) were significantly decreased but vascularization (VEGF) was significantly increased (<0.05) compared with induced fibrosis group. The most significant result was obtained in fibrosis that received combined therapy of hMSCs and neupogen (=0.000). Stem cells and neupogen are a highly effective alternative regenerative agents in endometrial fibrosis.

Sabry, D., A. Mostafa1, D. Mekawey, Z. Altaib, A. Shamaa, A. Hany, D. M, A. E. Hassib, N. E. Ibrahim, and W. A. Khalifa, "An experimental model: intrauterine adhesion versus sub endometrial fibrosis", Biomedical Research , vol. 29, issue 17, pp. 3311-3318, 2018.