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Lotfy, H. M., H. Salem, M. Abdelkawy, and A. Samir, "Spectrophotometric methods for simultaneous determination of betamethasone valerate and fusidic acid in their binary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 140, pp. 294–304, 2015.
Lotfy, H. M., M. A.Hegazy, S. Mowaka, and E. H. Mohamed, "Validated spectrophotometric methods for simultaneous determination of Omeprazole, Tinidazole and Doxycycline in their ternary mixture", spectrochimica acta part A molecular and biomolecular spectroscopy, vol. 153, pp. 321-332, 2016. sca_ekram.pdf
Lotfy, H. M., R. H. Obaydo, and A. A. Sakur, "Evaluation of assay and in-vitro dissolution profile of certain fixed-dose combination using green analytical method", Annales Pharmaceutiques Françaises, vol. Volume 79 , issue Issue 1, pp. Pages 3-15, 2021. in_vitro__1-s2.0-s0003450920300870-main_1_1.pdf
Lotfy, S., B. Omar, S. Mohamed, and A. Saad, "I-Lived experiences of Egyptian \women with breast cancer receiving chemotherapy", Indian Journal of Publir Health Research & Development lnstitute of Medico-Legal Publications, vol. 10, issue 6, pp. 678-682, 2019.
Lotfy, H. M., M. A. Hegazy, S. Mowaka, and E. H. Mohamed, "Novel spectrophotometric methods for simultaneous determination of amlodipine, valsartan and hydrochlorothiazide in their ternary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. 140: Elsevier, pp. 495-508, 2015. Abstract
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Lotfy, H. M., huda marzouk, yomna farag, A. Salah, H. Taher, M. Nabih, L. Rashed, and K. El-Garf, "Serum vitamin D level in Egyptian children with Familial Mediterranean fever.", Immunology letters, vol. 185, pp. 74-78, 2017 May. Abstractvit_d_in_fmf.pdf

BACKGROUND: The aim of the study is to measure plasma vitamin D levels in a group of Egyptian children with familial Mediterranean fever (FMF) compared to healthy children.

METHODS: The study enrolled 52 children with FMF and 40 apparently healthy controls. Serum vitamin D level was measured by enzyme-linked immunosorbent assay.

RESULTS: The mean serum vitamin D level was significantly lower in children with FMF than control group (12.3±3.4 and 21.2±3.5ng/mL, respectively, p<0.001). Vitamin D level was significantly lower in female patients than males (11.3±2.9, 13.2±3.6, respectively p=0.04). No statistically significant relations were detected between vitamin D level and different clinical, laboratory and genetic variables.

CONCLUSION: Vitamin D levels were lower in Egyptian FMF children than healthy controls. There is a speculation that vitamin D deficiency in FMF patients may be related to inflammation. Further studies with larger number of patients before and after Vitamin D, therapy may be needed. Supplementation with high doses of vitamin D seems appropriate for children with FMF.

Lotfy, H. M., N. K. Ramadan, and S. S. Abbas, "Simultaneous Determination of Ibuprofen and Methocarbamol in Combination", Bull. Fac. Pharm. Cairo Univ., vol. 43, issue 1, pp. 19-25 , 2005.
Lotfy, H. M., N. Erk, and Y. Rostom, "Developing spectral numerical factor technique for the determination of amlodipine besylate and the latest generation of statins in their new pharmaceutical combination", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. 218, pp. 320-330, 2019.
Lotfy, A., N. E. -, and N. ElGamal, "{SCI-F:} Social-Corporate Data Integration Framework", Proceedings of the 20th International Database Engineering {&} Applications Symposium, {IDEAS} 2016, Montreal, QC, Canada, July 11-13, 2016, pp. 328–333, 2016. Abstract
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Lotfy, H. M., M. A. Al-Ghobashy, and M. A. Abdallah, "Development and Validation of Stability Indicating Spectrophotometric Methods for Determination of Sulbutiamine in Tablet Dosage Form", Analytical chemistry Letters , vol. 6, issue 2, pp. 159 - 173 , 2016.
Lotfy, H. M., M. A. Hegazy, M. R. Rezk, and Y. R. Omran, "Novel spectrophotometric methods for simultaneous determination of timolol and dorzolamide in their binary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 126 , pp. 197–207, 2014. yasmin-phd1.pdf
Lotfy, H. M., S. M. Amer, H. E. Zaazaa, and N. S. Mostafa, "A comparative study of the novel spectrophotometric methods versus conventional ones for the simultaneous determination of Esomeprazole magnesium trihydrate and Naproxen in their binary mixture ", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 151, pp. 538–546, 2015.
Lotfy, H. M., S. S. Saleh, N. Y. Hassan, and S. M. Elgizawy, "Univariate versus Multivariate Spectrophotometric Methods for Simultaneous Determination of Complex Binary Mixtures with Overlapped Spectra: A Comparative Study ", Analytical Chemistry Letters, vol. 3, issue (2), pp. 70-84, 2013.
Lotfy, H. M., and M. A. M. Hegazy, "Simultaneous determination of some cholesterol-lowering drugs in their binary mixture by novel spectrophotometric methods", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. 113: Elsevier, pp. 107-114, 2013. Abstract
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Lotfy, H. M., H. S. M. El Dien, N. M. El Minawi, and H. A. W. A. Aziz, "The role of Doppler Ultrasonography in evaluating disease activity in a group of juvenile idiopathic arthritis patients", The Egyptian Journal of Radiology and Nuclear Medicine, vol. 49, no. 4: Elsevier, pp. 1036–1042, 2018. Abstract
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Lotfy, M. M., H. A. Ahmed, and F. A. Elrefaie, MASS AND HEAT BALANCE OF STEELMAKING IN BOF AS COMPARED TO EAF PROCESSES, , Submitted. Abstract
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Lotfy, H. M., D. Mohamed, and S. Mowaka, "A comparative study of smart spectrophotometric methods for simultaneous determination of sitagliptin phosphate and metformin hydrochloride in their binary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 149, pp. 441-451, 2015.
Lotfy, H. M., and Y. R. Omran, "Novel absorptivity centering method utilizing normalized and factorized spectra for analysis of mixtures with overlapping spectra in different matrices using built-in spectrophotometer software", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. 200, pp. 167-178, 2108.
Lotfy, A., N. ElTazi, and N. ElGamal, "SCI-F: Social-Corporate Data Integration Framework", 20th International Database Engineering & Applications Symposium: ACM, pp. 328-333, 2016.
Lotfy, H. M., A. M. Michael, M. R. Rezk, and M. A. Shehata, "Determination of Sumatriptan and Zolmitriptan in Presence of Their Corresponding Degradation Products by HPTLC Methods", Chromatographia, vol. 76, issue (3-4) , , pp. 187-194, 2013.
Lotfy, H. M., M. A. Hegazy, M. R. Rezk, and Y. R. Omran, "Novel spectrophotometric methods for simultaneous determination of timolol and dorzolamide in their binary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. 126: Elsevier, pp. 197-207, 2014. Abstract
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Lotfy, H. M., H. S. M. El Dien, N. M. El Minawi, and H. A. W. A. Aziz, "The role of Doppler Ultrasonography in evaluating disease activity in a group of juvenile idiopathic arthritis patients", The Egyptian Journal of Radiology and Nuclear Medicine, vol. 49, no. 4: Elsevier, pp. 1036–1042, 2018. Abstract
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Lotfy, V. F., S. S. Hassan, P. A. Khalf-Alla, and A. H. Basta, "Dr.", Appl. Organomet. Chem., vol. 69, issue 1, pp. 21-31, 2020. 9.pdf
Lotfy, H. M., E. M. Abdel-Moety, and E. G. Nouman, "Selective liquid chromatographic quantification of betamethasone valerate and clioquinol in presence of potential interferents", International Journal of Pharmacy and Pharmaceutical Sciences, vol. vol 6, issue Issue 7, pp. 79-85, 2014.
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