Dr. Mahmoud  Mohamed El-Mas
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Dr. Mahmoud Mohamed El-Mas

Chair & Professor
Alexandria University, Egypt


Highest Degree
Ph.D. in Pharmacology from Alexandria University, Egypt

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Area of Interest:

Pharmacology and Toxicology
100%
Pharmaceutical Sciences
62%
Clinical Pharmacology
90%
Pharmacotherapy
75%
Drug Development
55%

Research Publications in Numbers

Books
0
Chapters
0
Articles
0
Abstracts
0

Selected Publications

  1. Ibrahim, KS., A.F. El-Yazbi, H.M. El-Gowelli and M.M. El-Mas, 2018. Heme oxygenase byproducts variably influencesmyocardial and autonomic dysfunctions induced by the cyclosporine/diclofenac regimen in female rats. Biomed. Pharm., 101: 889-897.
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  2. Helmy, M.W., M.M. Helmy and M.M. El-Mas, 2018. Enhanced lipoxygenase/LTD4 signaling accounts for the exaggerated hypertensive and nephrotoxic effects of cyclosporine plus indomethacin in rats. Biomed. Pharm., 102: 309-316.
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  3. Fouda, M.A., H.M. El-Gowelli, S.M. El-Gowilly and M.M. El-Mas, 2018. Hemin blunts the depressant effect of chronic nicotine on reflex tachycardia via activation of central NOS/PI3K pathway in female rats. Pharmacol Rep., 62: 455-462.
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  4. El-Yazbi, A.F., A.H. Eid and M.M. El-Mas, 2018. Cardiovascular and renal interactions between cyclosporine and NSAIDs: Underlying mechanisms and clinical relevance. Pharm. Res., 129: 251-261.
  5. El-Lakany, M.A., M.A. Fouda, H.M. El-Gowelli, S.M. El-Gowilly and M.M. El-Mas, 2018. Gonadal hormone receptors underlie the resistance of female rats to inflammatory and cardiovascular complications of endotoxemia. Eur. J. Pharmacol., 823: 41-48.
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  6. Sallam, M.Y., S.M. El-Gowilly, A.G.A. Abdel-Galil and M.M. El-Mas, 2017. Cyclosporine counteracts endotoxemia-evoked reductions in blood pressure and cardiac autonomic dysfunction via central sGC/MAPKs signaling in rats. Eur. J. Pharmacol., 797: 143-152.
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  7. Ibrahim, K.S., A.F. El‐Yazbi, H.M. El‐Gowelli and M.M. El‐Mas, 2017. Opposite modulatory effects of selective and non‐selective cyclooxygenase inhibition on cardiovascular and autonomic consequences of cyclosporine in female rats. Basic Clin. Pharmacol. Toxicol., 120: 571-581.
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  8. Hammoud, S.H., A.G. Omar, A.A. Eid and M.M. El-Mas, 2017. CYP4A/CYP2C modulation of the interaction of calcium channel blockers with cyclosporine on EDHF-mediated renal vasodilations in rats. Toxicol. Applied Pharmacol., 334: 110-119.
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  9. El-Yazbi, A.F., K.S. Ibrahim, H.M. El-Gowelli, N.M. El-Deeb and M.M. El-Mas, 2017. Modulation by NADPH oxidase of the chronic cardiovascular and autonomic interaction between cyclosporine and NSAIDs in female rats. Eur. J. Pharmacol., 806: 96-104.
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  10. El-Gowelli, H.M., K.S. Ibrahim, A.F. El-Yazbi and M.M. El-Mas, 2017. Role of NADPHox/Rho-kinase signaling in the cyclosporine-NSAIDs interactions on blood pressure and baroreflexes in female rats. Life sci., 185: 15-22.
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  11. El-Bassossy, H.M., Z.M. Banjar and M.M. El-Mas, 2017. The inflammatory state provokes sexual dimorphism in left ventricular and electrocardiographic effects of chronic cyclosporine in rats. Sci. Rep., 10.1038/srep42457.
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  12. El-Bassossy, H.M., Z. Awan and M.M. El-Mas, 2017. Perinatal ciclosporin a exposure elicits sex-related cardiac dysfunction and inflammation in the rat progeny. Toxicol. lett., 281: 35-43.
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  13. Sallam, M.Y., S.M. El-Gowilly, A.G.A. Abdel-Galil and M.M. El-Mas, 2016. Modulation by central MAPKs/PI3K/sGc of the TNF-α/iNOS-dependent hypotension and compromised cardiac autonomic control in endotoxic rats. J. Cardiovasc. Pharmacol., 68: 171-181.
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  14. Sallam, M.Y., S.M. El-Gowilly, A.G.A. Abdel-Galil and M.M. El-Mas, 2016. Central GABA a receptors are involved in inflammatory and cardiovascular consequences of endotoxemia in conscious rats. Naunyn-Schmiedeberg's arch. Pharmacol., 389: 279-288.
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  15. Nasser, S.A., R. Sabra, A.I. Elmallah, M.M.M. El-Din, M.M. Khedr and M.M. El-Mas, 2016. Facilitation by the renin-angiotensin system of cyclosporine-evoked hypertension in rats: Role of arterial baroreflexes and vasoreactivity. Life sci., 163: 1-10.
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  16. Helmy, M.W., H.M. El‐Gowelli, R.M. Ali and M.M. El‐Mas, 2015. Endothelin ETA receptor/lipid peroxides/COX‐2/TGF‐β1 signalling underlies aggravated nephrotoxicity caused by cyclosporine plus indomethacin in rats. Br. J. Pharmacol., 172: 4291-4302.
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  17. Helmy, M.M., M.W. Helmy and M.M. El-Mas, 2015. Additive renoprotection by pioglitazone and fenofibrate against inflammatory, oxidative and apoptotic manifestations of cisplatin nephrotoxicity: Modulation by PPARs. PLoS ONE, Vol. 10. 10.1371/journal.pone.0142303.
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  18. Fouda, M.A., H.M. El-Gowelli, S.M. El-Gowilly and M.M. El-Mas, 2015. The estrogen-dependent baroreflex dysfunction caused by nicotine in female rats is mediated via NOS/HO inhibition: Role of sGC/PI3K/MAPKERK. Toxicol. Applied Pharmacol., 289: 466-473.
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  19. Fan, M., M.M. El-Mas and A.A. Abdel-Rahman, 2015. Preserved left ventricular performance in spontaneously hypertensive rats following preload and afterload challenges. J. Hypertens Manag., 10.23937/2474-3690/1510002.
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  20. El-Mas, M.M., M.W. Helmy, R.M. Ali and H.M. El-Gowelli, 2015. Celecoxib, but not indomethacin, ameliorates the hypertensive and perivascular fibrotic actions of cyclosporine in rats: Role of endothelin signaling. Toxicol. Applied Pharmacol., 284: 1-7.
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  21. El-Mas, M.M. and A.A. Abdel-Rahman, 2015. Estrogen modulation of the ethanol-evoked myocardial oxidative stress and dysfunction via DAPK3/Akt/ERK activation in male rats. Toxicol. Applied pharmacol., 287: 284-292.
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  22. El-Gowelli, H.M. and M.M. El-Mas, 2015. Central modulation of cyclosporine-induced hypertension. Naunyn-Schmiedeberg's Arch. Pharmacol., 388: 351-361.
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  23. Nasser, S.A., A.I. Elmallah, R. Sabra, M.M. Khedr, M.M.M. El-Din and M.M. El-Mas., 2014. Blockade of endothelin ETA, but not thromboxane, receptors offsets the cyclosporine-evoked hypertension and interrelated baroreflex and vascular dysfunctions. Eur. J. pharmacol., 727: 52-59.
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  24. Nasser, S.A. and M.M. El-Mas, 2014. Endothelin ETA receptor antagonism in cardiovascular disease. Eur. J. Pharmacol., 737: 210-213.
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  25. Gohar, E.Y., S.M. El-Gowilly, H.M. El-Gowelli, M.A. El-Demellawy and M.M. El-Mas, 2014. PI3K/Akt-independent NOS/HO activation accounts for the facilitatory effect of nicotine on acetylcholine renal vasodilations: Modulation by ovarian hormones. PloS one, 10.1371/journal.pone.0095079.
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  26. Fouda, M.A., H.M. El-Gowelli, S.M. El-Gowilly, L. Rashed and M.M. El-Mas, 2014. Impairment of nitric oxide synthase but not heme oxygenase accounts for baroreflex dysfunction caused by chronic nicotine in female rats. PloS one, 10.1371/journal.pone.0098681.
    CrossRef  |  Direct Link  |  
  27. El‐Mas, M.M., S.M. El‐Gowilly, L.K. Elsalakawy and H.M. El‐Gowelli, 2014. Oestrogen compromises the facilitatory effect of chronic nicotine on adenosine A2B receptor–K+ channel‐mediated renal vasodilation. Clin. Exp. Pharmacol. Physiol., 41: 600-607.
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  28. El‐Mas, M.M. and A.A. Abdel‐Rahman, 2014. Endothelial and neuronal nitric oxide synthases variably modulate the oestrogen‐mediated control of blood pressure and cardiovascular autonomic control. Clin. Exp. Pharmacol. Physiol., 41: 246-254.
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  29. El-Gowelli, H.M., M.W. Helmy, R.M. Ali and M.M. El-Mas, 2014. Celecoxib offsets the negative renal influences of cyclosporine via modulation of the TGF-β1/IL-2/COX-2/endothelin ETB receptor cascade. Toxicol. Applied pharmacol., 275: 88-95.
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  30. 24. El-Mas, M.M. and A.A. Abdel-Rahman, 2014. Ser/thr phosphatases tonically attenuate the ERK-dependent pressor effect of ethanol in the rostral ventrolateral medulla in normotensive rats. Brain Res., 1577: 21-28.
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  31. Gohar, E.Y., S.M. El-gowilly, H.M. El-Gowelli and M.M. El-Mas, 2013. Nicotine paradoxically affects the facilitatory effect of ovarian hormones on the adenosine receptor-mediated renal vasodilation. Eur. J. Pharmacol., 710: 1-9..
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  32. El‐Mas, M.M., M. Fan and A.A. Abdel‐Rahman, 2013. Role of rostral ventrolateral medullary ERK/JNK/p38 MAPK signaling in the pressor effects of ethanol and its oxidative product acetaldehyde. Alcohol. Clin. Exp. Res., 37: 1827-1837.
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  33. El-Mas, M.M., H.M. El-Gowelli and M.C. Michel, 2013. Publication trends in naunyn-schmiedeberg’s archives of pharmacology: Focus on pharmacology in Egypt. Naunyn-Schmiedebergs Arch. Pharmacol., 386: 929-933.
  34. El-Mas, M.M. and A.A. Abdel-Rahman, 2013. Nongenomic effects of estrogen mediate the dose-related myocardial oxidative stress and dysfunction caused by acute ethanol in female rats. Am. J. Physiol. Endocrinol. Metab., 306: E740-E747.
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  35. El-Mas, M.M and A.A. Abdel-Rahman, 2013. Cardiovascular autonomic modulation by nitric oxide synthases accounts for the augmented enalapril-evoked hypotension in ethanol-fed female rats. Alcohol, 47: 339-346.
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  36. El-Gowelli, H.M., S.M. El-Gowilly, L.K. Elsalakawy and M.M. El-Mas, 2013. Nitric oxide synthase/K+ channel cascade triggers the adenosine A2B receptor-sensitive renal vasodilation in female rats. Eur. J. Pharmacol., 702: 116-125..
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  37. Harraz, O.F., H.M. El-Gowelli, M.M.M. El-Din, A.R.M. Ghazal and M.M. El-Mas, 2012. Adenosinergic modulation of the imidazoline I1-receptor-dependent hypotensive effect of ethanol in acute renal failure. Food Chem. Toxicol., 50: 2622-2628.
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  38. El-Mas, M.M., M.M.M. El-Din, M.M. Helmy and A.G. Omar, 2012. Redox imbalances incite the hypertensive, baroreflex, and autonomic effects of cyclosporine in rats. Eur. J. Pharmacol., 694: 82-88.
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  39. El-Mas, M.M., M.A. Fouda, S.M. El-Gowilly and E.I. Saad, 2012. Central estrogenic pathways protect against the depressant action of acute nicotine on reflex tachycardia in female rats. Toxicol. Applied Pharmacol., 258: 410-417.
    CrossRef  |  Direct Link  |  
  40. El-Mas, M.M., M. Fan and A.A. Abdel-Rahman, 2012. Differential modulation by vascular nitric oxide synthases of the ethanol-evoked hypotension and autonomic dysfunction in female rats. Alcohol, 46: 727-735.
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  41. El-Mas, M.M., H.M. El-Gowelli, S.M. El-Gowilly, M.A. Fouda and M.M. Helmy, 2012. Estrogen provokes the depressant effect of chronic nicotine on vagally mediated reflex chronotropism in female rats. J. Pharmacol. Exp. Ther., 342: 568-575.
    CrossRef  |  Direct Link  |  
  42. El-Mas, M.M., A.G. Omar, M.M. Helmy and M.M.M. El-Din, 2012. Crosstalk between central pathways of nitric oxide and carbon monoxide in the hypertensive action of cyclosporine. Neuropharmacology, 62: 1890-1896.
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  43. El-Mas, M.M. and A.A. Abdel-Rahman, 2012. Exacerbation of myocardial dysfunction and autonomic imbalance contributes to the estrogen-dependent chronic hypotensive effect of ethanol in female rats. Eur. J. Pharmacol., 679: 95-100.
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  44. El-Mas, M.M., S.M. El-Gowilly, M.A. Fouda and E.I. Saad, 2011. Role of adenosine A2A receptor signaling in the nicotine-evoked attenuation of reflex cardiac sympathetic control. Toxicol. Applied Pharmacol., 254: 229-237.
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  45. El-Mas, M.M., S.M. El-Gowilly, E.Y. Gohar, A.R.M. Ghazal and A.A. Abdel-Rahman, 2011. Estrogen dependence of the renal vasodilatory effect of nicotine in rats: role of α7 nicotinic cholinergic receptor/eNOS signaling. Life sci., 88: 187-193.
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  46. El-Mas, M.M., M. Fan and A.A. Abdel-Rahman, 2011. Upregulation of cardiac NOS due to endotoxemia and vagal overactivity contributes to the hypotensive effect of chronic ethanol in female rats. Eur. J. Pharmacol, 650: 317-323.
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  47. El-Mas, M.M., H.M. El-Gowelli, K.S. Abd-Elrahman, E.I. Saad, A.G.A. Abdel-Galil and A.A. Abdel-Rahman, 2011. Pioglitazone abrogates cyclosporine-evoked hypertension via rectifying abnormalities in vascular endothelial function. Biochem. Pharmacol., 81: 526-533.
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  48. El-Mas, M.M. and A.A. Abdel-Rahman, 2011. Enhanced catabolism to acetaldehyde in rostral ventrolateral medullary neurons accounts for the pressor effect of ethanol in spontaneously hypertensive rats. Am. J. Physiol. Heart Circulatory Physiol., 302: H837-H844.
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  49. El-Mas, M.M. and A.A Abdel-Rahman, 2011. Bradykinin B2 receptor-dependent enhancement of enalapril-evoked hypotension in ethanol-fed female rats. J. Cardiovasc. Pharmacol., 57: 72-78.
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  50. El-Gowelli, H.M., K.S. Abd-Elrahman, E.I. Saad, S.M. El-Gowilly, A.G.A. Abdel-Galil and M.M. El-Mas, 2011. PPARγ dependence of cyclosporine–isoprenaline renovascular interaction: Roles of nitric oxide synthase and heme oxygenase. J. Cardiovascular pharmacol., 58: 173-180.
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  51. Nasr, M.A., S.M. El-Gowilly and M.M. El-Mas, 2010. Comparable renovascular protective effects of moxonidine and simvastatin in rats exposed to cigarette smoke Vascular Pharmacol., 53: 53-60.
    CrossRef  |  
  52. El-Mas, M.M. and A.A. Abdel-Rahman, 2010. Reduced cardiac contractile force due to sympathovagal dysfunction mediates the additive hypotensive effects of limited-access regimens of ethanol and clonidine in spontaneously hypertensive rats. J. Pharmacol. Exp. Ther., 335: 852-860.
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  53. Abd-Elrahman, K.S., H.M. El-Gowelli, E.I. Saad, A.G.A. Abdel-Galil and M.M. El-Mas, 2010. Role of PPARγ/Nitric oxide synthase signaling in the cyclosporine-induced attenuation of endothelium-dependent renovascular vasodilation. J. Cardiovasc. Pharmacol., 56: 195-202.
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  54. El‐Mas, M.M., M. Fan and A.A. Abdel‐Rahman, 2009. Facilitation of myocardial PI3K/Akt/nNOS signaling contributes to ethanol‐evoked hypotension in female rats. Alcohol. Clin. Exp. Res., 33: 1158-1168.
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  55. El-Mas, M.M., S.M. El-Gowilly, E.Y. Gohar and A.R.M. Ghazal, 2009. Sex and hormonal influences on the nicotine-induced attenuation of isoprenaline vasodilations in the perfused rat kidney. Can. J. physiol. Pharmacol., 87: 539-548.
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  56. El-Mas, M.M., H.A. El-Gowelli, A.M. Ghazal, O.F. Harraz and M.M.M. El-Din, 2009. Facilitation of central imidazoline I1‐site/extracellular signal‐regulated kinase/p38 mitogen‐activated protein kinase signalling mediates the hypotensive effect of ethanol in rats with acute renal failure. Br. J. Pharmacol., 158: 1629-1640.
    CrossRef  |  Direct Link  |  
  57. El-Mas, M.M., A.G. Omar, M.M. Helmy and M.M.M. El-Din, 2009. Interruption of central neuronal pathway of imidazoline I1 receptor mediates the hypertensive effect of cyclosporine in rats. Brain Res., 1248: 96-106.
    CrossRef  |  Direct Link  |  
  58. El-Mas, M.M. and A.A. Abdel-Rahman, 2009. Longitudinal assessment of the modulatory effect of estrogen on blood pressure and cardiac autonomic activity in female rats. Clin. Exp. Pharmacol. Physiol., 36: 1002-1009.
  59. El-Mas, M.M. and A.A. Abdel-Rahman, 2009. Chronic ethanol attenuates centrally-mediated hypotension elicited via α2-adrenergic, but not I1-imidazoline, receptor activation in female rats. Life sci., 84: 111-118.
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  60. El-gowilly, S.M., A.M. Ghazal, E.Y. Gohar and M.M. El-Mas, 2008. Exacerbation by nicotine of the cyclosporine a-induced impairment of β-adrenoceptor-mediated renal vasodilation in rats. Clin. Exp. Pharmacol. Physiol., 35: 1164-1171.
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  61. El-Mas, M.M., S.M. El-gowilly, E.Y. Gohar and A.R.M. Ghazal, 2008. Pharmacological characterization of cellular mechanisms of the renal vasodilatory effect of nicotine in rats. Eur. pean j. pharmacol., 588: 294-300.
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  62. El-Mas, M.M., M. Fan and A.A. Abdel-Rahman, 2008. Endotoxemia-mediated facilitation of cardiac iNOS expression accounts for the hypotensive effect of ethanol in female rats. J. Pharmacol. Exp. Ther., 324: 368-375.
  63. El‐Mas, M.M. and A.A. Abdel‐Rahman, 2007. Role of myocardial contractility and autonomic control in the hypotensive response to a limited access ethanol paradigm in SHRs. Alcoh Clin. Exp. Res., 31: 1071-1079.
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  64. El-Mas, M.M., F.M. Sharabi, S.M. El-gowilly and M.M.M. El-Din, 2007. Inhibition of nitric oxide-guanylate cyclase-dependent and -independent signaling contributes to impairment of β-adrenergic vasorelaxations by cyclosporine. Biochem. Pharmacol., 73: 359-367.
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  65. El-Mas, M.M. and A.A. Abdel-Rahman, 2007. Intermittent clonidine regimen abolishes tolerance to its antihypertensive effect: A spectral study. J. Cardiovasc. Pharmacol., 49: 174-181.
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  66. El-Mas, M.M., J. Zhang and A.A. Abdel-Rahman, 2006. Upregulation of vascular inducible nitric oxide synthase mediates the hypotensive effect of ethanol in conscious female rats. J. Applied Physiol., 100: 1011-1018.
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  67. El‐Mas, M.M. and A.A. Abdel‐Rahman, 2005. Autonomic modulation of altered diurnal hemodynamic profiles in ethanol‐fed hypertensive rats. Alcoh. Clin. Exp. Res., 29: 499-508.
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  68. El-Mas, M.M., M.M.M. El-Din, S.M. El-gowilly and F.M. Sharabi, 2005. The α1-adrenergic receptor not the DA1-dopaminergic receptor mediates cyclosporine–SKF38393 renovascular interaction. Can. J. physiol. Pharmacol., 83: 1129-1136.
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  69. El-Mas, M.M. and A.A. Abdel-Rahman, 2005. Longitudinal studies on the effect of hypertension on circadian hemodynamic and autonomic rhythms in telemetered rats. Life sci., 76: 901-915.
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  70. Omar, A.G. and M.M. El-Mas, 2004. Time-domain evaluation of cyclosporine interaction with hemodynamic variability in rats. Cardiovasc. Drug Ther., 18: 461-468.
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  71. El-Mas, M.M., M.M.M. El-Din, S.M. El-gowilly and F.M. Sharabi, 2004. Relative roles of endothelial relaxing factors in cyclosporine-induced impairment of cholinergic and β-adrenergic renal vasodilations. Eur. J. Pharmacol., 487: 149-158.
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  72. El-Mas, M.M., M.M.M. El-Din, S.M. El-gowilly and F.M. Sharabi, 2004. Regional and endothelial differences in cyclosporine attenuation of adenosine receptor-mediated vasorelaxations. J. Cardiovasc. Pharmacol., 43: 562-573.
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  73. El-Mas, M.M. and A.A. Abdel-Rahman, 2004. Effects of long-term ovariectomy and estrogen replacement on clonidine-evoked reductions in blood pressure and hemodynamic variability. J. Cardiovasc. Pharmacol., 43: 607-615.
    PubMed  |  
  74. El-Mas, M.M. and A.A. Abdel-Rahman, 2004. Differential modulation by estrogen of α2-adrenergic and I1-imidazoline receptor-mediated hypotension in female rats. J. Applied Physiol., 97: 1237-1244.
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  75. El-Mas, M.M. and A.A. Abdel-Rahman, 2004. Contrasting effects of chronic ethanol feeding on centrally and peripherally evoked hypotension in telemetered female rats. Vasc. Pharmacol., 41: 59-66.
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  76. El-Mas, M.M. and A.A. Abdel-Rahman, 2004. Chronic ethanol–clonidine hemodynamic interaction in telemetered spontaneously hypertensive rats. Vasc. Pharmacol., 41: 107-113.
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  77. El-Mas, M.M. and A.A. Abdel-Rahman, 2004. Chronic ethanol administration attenuates imidazoline I1 receptor- or α2-adrenoceptor-mediated reductions in blood pressure and hemodynamic variability in hypertensive rats. Eur. J. Pharmacol., 485: 251-262.
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  78. El‐Mas, M.M., M. Rekik, A.A. Abdel‐Rahman and S.J. Mustafa, 2003. Chronic ethanol feeding potentiates α1‐adrenoceptor responsiveness in SHR aortas. Clin. Exp. Hypertens., 25: 381-393.
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  79. El-Mas, M.M., E.A. Afify, A.G. Omar, M.M.M. El-Din and F.M. Sharabi, 2003. Testosterone depletion contributes to cyclosporine-induced chronic impairment of acetylcholine renovascular relaxations. Eur. J. Pharmacol., 468: 217-224.
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  80. El-Mas, M.M. and A.A. Abdel-Rahman, 2003. Effects of chronic ethanol feeding on clonidine-evoked reductions in blood pressure, heart rate, and their variability: Time-domain analyses. J. Pharmacol. Exp. Ther., 306: 271-278.
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  81. Rekik, M., M.M. El-Mas, J.S. Mustafa and A.A. Abdel-Rahman, 2002. Role of endothelial adenosine receptor-mediated vasorelaxation in ethanol-induced hypotension in hypertensive rats. Eur. J. Pharmacol., 452: 205-214.
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  82. El-Mas, M.M., E.A. Afify, A.G. Omar and F.M. Sharabi, 2002. Cyclosporine attenuates the autonomic modulation of reflex chronotropic responses in conscious rats. Can. J. Physiol. Pharmacol., 80: 766-776.
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  83. El-Mas, M.M., E.A. Afify, A.G. Omar and F.M. Sharabi, 2002. Cyclosporine adversely affects baroreflexes via inhibition of testosterone modulation of cardiac vagal control. J. Pharmacol. Exp. Ther., 301: 346-354.
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  84. Zhang, J., M.M. El-Mas and A.A. Abdel-Rahman, 2001. Imidazoline I1 receptor-induced activation of phosphatidylcholine-specific phospholipase C elicits mitogen-activated protein kinase phosphorylation in PC12 cells. Eur. J. Pharmacol., 415: 117-125.
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  85. El-Mas, M.M., E.A. Afify, M.M.M. El-Din, A.G. Omar and F.M. Sharabi, 2001. Testosterone facilitates the baroreceptor control of reflex bradycardia: Role of cardiac sympathetic and parasympathetic components. J. Cardiovasc. Pharmacol., 38: 754-763.
    Direct Link  |  
  86. El-Mas, M.M. and A.A. Abdel-Rahman, 2001. Evidence for the involvement of central I1 imidazoline receptor in ethanol counteraction of clonidine hypotension in spontaneously hypertensive rats. J. Cardiovasc. Pharmacol., 38: 417-426.
    Direct Link  |  
  87. El-Mas, M.M. and A.A. Abdel-Rahman, 2001. Effect of long-term ethanol feeding on brainstem α2-receptor binding in Wistar–Kyoto and spontaneously hypertensive rats. Brain res., 900: 324-328.
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  88. El-Mas, M.M. and A.A. Abdel-Rahman, 2001. An association between the estrogen-dependent hypotensive effect of ethanol and an elevated brainstem c-jun mRNA in female rats. Brain res., 912: 79-88.
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  89. El-Mas, M.M. and A.A. Abdel-Rahman, 2000. Radiotelemetric evaluation of hemodynamic effects of long-term ethanol in spontaneously hypertensive and Wistar-Kyoto rats. J. Pharmacol. Exp. Ther., 292: 944-951.
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  90. El-Mas, M.M. and A.A. Abdel-Rahman, 2000. Ovariectomy alters the chronic hemodynamic and sympathetic effects of ethanol in radiotelemetered female rats. Clin. Exp. Hypertens., 22: 109-126.
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  91. El-Mas, M.M. and A.A. Abdel-Rahman, 2000. Clonidine diminishes C-jun gene expression in the cardiovascular sensitive areas of the rat brainstem. Brain res., 856: 245-249.
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  92. Mohamed, M.K., M.M. El-Mas and A.A. Abdel-Rahman, 1999. Estrogen enhancement of baroreflex sensitivity is centrally mediated. Am. J. Physiol. Regul. Integr. Comp. Physiol., 276: R1030-R1037.
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  93. El‐Mas, M.M. and A.A. Abdel‐Rahman, 1999. Estrogen‐dependent hypotensive effects of ethanol in conscious female rats. Alcoh. Clin. Exp. Res., 23: 624-632.
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  94. El-Mas, M.M., 1999. Ethanol abolishes clonidine-induced impairment of baroreflex control of heart rate in conscious rats. Gen. Pharmacol. Vasc. Syst., 32: 207-214.
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  95. El-Mas, M.M. and A.A. Abdel-Rahman, 1999. Sexually dimorphic hemodynamic effects of intragastric ethanol in conscious rats. Clin. Exp. Hypertens., 21: 1429-1445.
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  96. El-Mas, M.M. and A.A. Abdel-Rahman, 1999. Role of the sympathetic control of vascular resistance in ethanol-clonidine hemodynamic interaction in SHRs. J. Cardiovasc. Pharmacol., 34: 589-596.
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  97. El-Mas, M.M. and A.A. Abdel-Rahman, 1999. Ethanol counteraction of i1-imidazoline but notalpha-2 adrenergic receptor-mediated reduction in vascular resistance in conscious spontaneously hypertensive rats. J. Pharmacol. Exp. Ther., 288: 455-462.
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  98. El-Mas, M.M. and A.A. Abdel-Rahman, 1999. Acute hemodynamic effects of ethanol in conscious spontaneously hypertensive and normotensive rats. Alcohol. Clin. Exp. Res., 23: 285-292.
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  99. EL-Mas, M.M., A.I. Elmallah, A.G. Omar and F. Sharabi, 1999. Dopamine modulates peripheral purinergic neurotransmission through multiple presynaptic receptors: Tissue-dependent effects. Pharmacol. Res., 39: 11-19.
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  100. Abdel-Kreem, M.F.M. and M.M. El-Mas, 1999. Benzene-1, 4-bis [1-(Substituted phenethylamino) cycohexanes]: Potential 2-adrenoceptor probes. Alexandria J. Pharm. Sci., 13: 47-52.
  101. El-Mas, M.M., 1998. Facilitation of reflex bradycardia does not contribute to the enhanced hypotensive effect of clonidine in aortic barodenervated rats. J. Cardiovasc. Pharmacol., 31: 869-875.
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  102. El-Mas, M.M. and A.A. Abdel-Rahman, 1998. Ovariectomy abolishes ethanol-induced impairment of baroreflex control of heart rate in conscious rats. Eur. J. Pharmacol., 349: 253-261.
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  103. El-Mas, M.M. and A.A. Abdel-Rahman, 1998. Ethanol selectively counteracts hypotension evoked by central i1-imidazoline but not α2-adrenergic receptor activation in spontaneously hypertensive rats. J. Cardiovasc. Pharmacol., 32: 382-389.
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  104. El-Mas, M.M. and A.A. Abdel-Rahman, 1998. Estrogen enhances baroreflex control of heart rate in conscious ovariectomized rats. Can. J. physiol. Pharmacol., 76: 381-386.
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  105. El‐Mas, M.M. and A.A. Abdel‐Rahman, 1997. Contrasting effects of urethane, ketamine, and thiopental anesthesia on ethanol‐clonidine hemodynamic interaction. Alcoh. Clin. Exp. Res., 21: 19-27.
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  106. El-Mas, M.M., T.T. Daabees, H.M. El-Gowelli and A.G.A. Abdel-Galil, 1997. Enhanced endothelial nitric oxide activity contributes to the reduced responsiveness of vascular α1-adrenoceptors following aortic barodenervation. Eur. J. Pharmacol., 337: 235-243.
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  107. El-Mas, M.M., A.G.A. Abdel-Galil, H.M. El-Gowelli and T.T. Daabees, 1997. Short-term aortic barodenervation diminishes α1-adrenoceptor reactivity in rat aortic smooth muscle. Eur. J. Pharmacol., 322: 201-210.
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  108. El-Mas, M.M. and A.A. Abdel-Rahman, 1997. Role of cardiac output in ethanol-evoked attenuation of centrally mediated hypotension in conscious rats. Hypertension, 30: 288-294.
  109. El-Mas, M.M. and A.A. Abdel-Rahman, 1997. Aortic barodenervation up-regulates α2-adrenoceptors in the nucleus tractus solitarius and rostral ventrolateral medulla: An autoradiographic study. Neuroscience, 79: 581-590.
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  110. Elmallah, A.I., F. Sharabi, A.G. Omar and M.M. EL‐Mas, 1995. Prazosin‐induced blockade of extraneuronal uptake facilitates dopaminergic modulation of muscle twitches in rat vas deferens. J. pharm. Pharmacol., 47: 932-936.
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  111. El-Mas, M.M., 1995. Oral and injectable hormonal contraceptives in association with breast cancer. Alex. J. Pharm. Sci., 9: 75-78.
  112. El-Mas, M.M. and A.A. Abdel-Rahman, 1995. Upregulation of imidazoline receptors in the medulla oblongata accounts for the enhanced hypotensive effect of clonidine in aortic barodenervated rats. Brain res., 691: 195-204.
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  113. Fahim, M., M.M. El-Mas, A.A. Abdel-Rahman and S.J. Mustafa, 1994. Influence of aortic baroreceptor denervation on adenosine receptor-mediated relaxation of isolated rat aorta. Eur. J. Pharmacol., 254: 183-191.
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  114. El-Mas, M.M., S. Tao, R.G. Carroll and A.A. Abdel-Rahman, 1994. Ethanol-clonidine hemodynamic interaction in normotensive rats is modified by anesthesia. Alcohol, 11: 307-314.
  115. El-Mas, M.M., R.G. Carroll and A.A. Abdel-Rahman, 1994. Centrally mediated reduction in cardiac output elicits the enhanced hypotensive effect of clonidine in conscious aortic barodenervated rats. J. Cardiovasc. Pharmacol., 24: 184-193.
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  116. El-Mas, M.M., 1994. Influence of anesthesia on baroreflex-mediated control of heart rate. Alexandria J. Pharm. Sci., 8: 99-99.
  117. el-Mas, M.M. and A.A. Abdel-Rahman,. 1993. Direct evidence for selective involvement of aortic baroreceptors in ethanol-induced impairment of baroreflex control of heart rate. J. Pharmacol. Exp. Ther., 264: 1198-1205.
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  118. el-Mas, M.M. and A.A. Abdel-Rahman, 1993. Role of NMDA and non-NMDA receptors in the nucleus tractus solitarius in the depressant effect of ethanol on baroreflexes. J. Pharmacol. Exp. Ther., 266: 602-610.
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  119. El-Mas, M.M., R.G. Carroll and A.A. Abdel-Rahman, 1993. Blood pressure normalization in carotid barodenervated rats: role of cardiac output. Can. J. Physiol. Pharmacol., 71: 783-790.
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  120. el-Mas, M.M. and A.A. Abdel-Rahman, 1992. Role of aortic baroreceptors in ethanol-induced impairment of baroreflex control of heart rate in conscious rats. J. Pharmacol. Exp. Ther., 262: 157-165.
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  121. Bedwell, A.M., M. El‐Mas and I.E. Hughes, Bedwell, A.M., M. El‐Mas and I.E. Hughes, 1992. Effect of cocaine on tritium overflow evoked from vasa deferentia previously loaded with [3H]noradrenaline by stimulation using different types of electrode. J. Pharm. Pharmacol., 44: 235-238.
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  122. Abdel-Rahman, A.A., R.G. Carroll and M.M. El-Mas, 1992. Role of the sympathetic nervous system in the alcohol–guanabenz hemodynamic interaction. Can. J. Physiol. Pharmacol., 70: 1217-1224.
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  123. El‐Mas, M. and I.E. Hughes, 1990. Effect of blockade of noradrenaline re‐uptake on evoked tritium overflow from mouse vasa deferentia and rat cortex slices. Br. J. Pharmacol., 101: 762-768.
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  124. El-Mas, M., J. Goodall and I.E. Hughes, 1989. On the mechanism involved in the ability of meptazinol to potentiate the effects of sympathetic nerve stimulation. J. Pharm. Pharmacol., 41: 242-246.
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  125. Rashida, Z., M.S. Abou Zeit-Har, A.E. Bistawroos, M.M. El-Mas and A. Ghazal, 1987. Synergistic effect of combined antacid and ranitidine treatment on restraint induced gastric ulcers in the rat. Bull. Alex. Fac. Med., 23: 79 -91.
  126. Abou Zeit-Har, M.S., A.E. Bistawroos, M.M. El-Mas, A. Ghazal and R. Zeitoun, 1987. Protective effect of hyoscine against stress and indomethacin induced gastric ulcers in the rat. Bull. Alex. Fac. Med., 23: 93-101.
  127. Abou Zeit-Har, M.S., A.E. Bistawroos, M.M. El-Mas, A. Ghazal and R. Zeitoun, 1987. Effects of andursil, ranitidine and prostaglandin E2 on indomethacin induced gastric ulcers in the rat. Bull. Alex. Fac. Med., 23: 69-78.