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Lotfy, A. A., M. A. El-Desoky, A. A. Bahnansy, F. hend Yousef, and M. H. Kobaisi, "Biochemical study of E-Cadherin and SATB1 in Urothelial Bladder Carcinoma of Egyptian Patients", Egyptian Journal of Chemistry, vol. 64, issue 4, 2021.
Lotfy, H. M., M. A. B. D. E. L. - M. Hegazy, A. El-Aziz, M. Mai, and laila elsayed abdel fattah, Stability Indicating Spectrophotometric Methods For Determination Of Nicardipine In The Presence Of Its Alkaline Induced Degradation Products, : International Journal Of Pharmacy And Pharmaceutical Sciences, 2016. Abstract
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Lotfy, H. M., S. M. Sabry, E. E. Ghobrial, S. A. Abed, and others, "The effect of regular hemodialysis on the nutritional status of children with end-stage renal disease", Saudi Journal of Kidney Diseases and Transplantation, vol. 26, no. 2: Medknow Publications, pp. 263, 2015. Abstract
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Lotfy, M. M. M., Energy and environmental impact of steelmaking processes, : Cairo University, 2011. Abstract
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Lotfy, H. M., M. A. M. Hegazy, M. R. Rezk, and Y. R. Omran, "Comparative study of novel versus conventional two-wavelength spectrophotometric methods ‎for analysis of spectrally overlapping binary ‎mixture‎", Spectrochimica Acta Part A: Molecular and Biomolecular ‎Spectroscopy‎, vol. 148, pp. ‎328-337‎, 2015.
Lotfy, H. M., S. S. Saleh, N. Y. Hassan, and H. Salem, "Novel two wavelength spectrophotometric methods for simultaneous determination of binary mixtures with severely overlapping spectra", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , issue 136, pp. 1786–1796, 2015.
Lotfy, D. M., M. M. Safar, S. H. Mohamed, and S. A. Kenawy, "Effect of valproic acid alone or combined with low dose gamma irradiation in modulating PTZ-induced convulsions in rats involving AKT/m-TOR pathway.", Life Sciences, vol. 212, issue 1, pp. 261-266, 2018. dina_irradiation_epilepsy.pdf
Lotfy, H. M., and M. A. 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 , pp. 107–114, 2013.
lotfy, and randa, A Program for Development of CriticalThinking Skills for Teacher Student Using some Electronic Education Strategies, , Giza, Kindergarten, Cairo University, pp. Research Summary, 27/4/2015. research_summary.docx
Lotfy, H. M., yasmin fayez, shereen mostafa, nesma ahmoud, and mostafa abdelaty, "Evaluation of graphical and statistical representation of analytical signals of spectrophotometric methods", spectrochimica acta, vol. 184, pp. 61-70, 2017. spectrochimica_acta.pdf
lotfy, Mousa, W.M., El-Shehry, M. S., Ahmed, Ali, & Al Shawoush, A. M., and A. S. Mohamed, " Therapeutic potency of gallium verum extract on ethanol-induced gastric ulcer in rats", Biointerface Research in Applied Chemistry, vol. 12, pp. 6010 - 6020, 2022.
Lotfy, H. M., H. H.Monir, N. Erk, and Y. Rostom, "Novel feature extraction approach for achieving potential spectral resolution: Green analytical application on zofenopril calcium and hydrochlorothiazide in their spectrally overlapping binary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. 230, pp. 117998, 2020.
hala lotfy, M. H. Abu-Zaid, S. Salah, and E. M. Gaafary, "Egyptian evidence-based consensus on clinical practice guidelines for the diagnosis and treat-to-target management of macrophage activation syndrome in children", Egyptian Rheumatology and Rehabilitation, vol. 49, issue 36, 2022.
Lotfy, H. M., M. R. Rezk, A. M. Michael, A. O. S. El-Kadi, and M. A. Shehata, "A validated stability-Indicating method for the determination of sumatriptan and kinetic study of the degradation", Analytical Chemistry, An Indian Journal, vol. 12, issue 4, pp. 127-132, 2013.
Lotfy, H. M., "Absorbance subtraction and amplitude modulation as novel spectrophotometric methods for the analysis of binary mixtures ", Int J Pharm Pharm Sci,, vol. Vol 6, issue Issue 1, pp. 735-741, 2014.
Lotfy, H. M., H. H. Monir, N. Erk, and Y. Rostom, "Novel feature extraction approach for achieving potential spectral resolution: Green analytical application on zofenopril calcium and hydrochlorothiazide in their spectrally overlapping binary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. 230, pp. 117998-118010, 2020.
Lotfy, H. M., M. S. Elshahed, and D. Mohamed, "The concept of Relative Absorptivity Distribution for enhancingdisbanding power of spectrophotometric technique to resolveco-formulated tablets: A tool for purity index and uniformity assessment", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 239 , vol. 239, pp. 118551, 2020.
ahmed lotfy, A. Hasanin, M. Rashad, M. Mostafa, D. Saad, M. Mahmoud, W. Hamimy, and A. Z. Fouad, "Peripheral perfusion index as a predictor of failed weaning from mechanical ventilation.", Journal of clinical monitoring and computing, vol. 35, issue 2, pp. 405-412, 2021. Abstract

We hypothesized that impairment of peripheral perfusion index (PPI) during spontaneous breathing trial (SBT) might be predictive of weaning failure. We included 44 consecutive, adult, patients, who were scheduled for weaning after at least 48 h of invasive mechanical ventilation in this prospective observational study. Weaning failure was defined as failed SBT or reintubation within 48 h of extubation. PPI readings were obtained before initiation of the SBT, and every 5 min till the end of the SBT. PPI ratio was calculated at every time point as: PPI value/ baseline PPI. The primary outcome was the accuracy of PPI ratio at the end of the SBT in detecting failed weaning. Forty-three patients were available for the final analysis. Eighteen patients (42%) were considered failed weaning. PPI ratio was higher in patients with successful weaning compared to patients with failed weaning during the last 15 min of the SBT. PPI ratio at the end of SBT was higher in patients with successful weaning compared to patients with failed weaning. PPI ratio at the end of SBT had good predictive ability for weaning failure {area under receiver operating characteristic curve (95% confidence interval): 0.833(0.688-0.929), cutoff value ≤ 1.41}. The change in PPI during SBT is an independent predictor for re-intubation. PPI could be a useful tool for monitoring the patient response to SBT. Patients with successful weaning showed higher augmentation of PPI during the SBT compared to re-intubated patients. Failure of augmenting the PPI by 41% at the end of SBT could predict re-intubation with negative predictive value of 95%. Clinical trial identifier: NCT03974568. https://clinicaltrials.gov/ct2/show/NCT03974568?term=ahmed+hasanin&draw=3&rank=17.

Lotfy, H. M., S. M. Sabry, E. E. Ghobrial, S. A. Abed, and others, "The effect of regular hemodialysis on the nutritional status of children with end-stage renal disease", Saudi Journal of Kidney Diseases and Transplantation, vol. 26, no. 2: Medknow Publications, pp. 263, 2015. Abstract
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Lotfy, W., K. Farouk, A. El-Hadidy, R. Aly, H. Saber, A. Battah, A. Mowafy, M. Shehata, and A. EL-sherif, "Pacing Induced Cardiomyopathy, Diagnosis and Prevalence", Egyptian Heart Journal, vol. 62, issue 2, 2010.
Lotfy, V. F., S. S. Hassan, P. A. Khalf-Alla, and A. H. Basta, "The role of side chain of amino acid on performance of their conjugates with carboxymethyl cellulose and their Pd (II) complexes as bioactive agents", International Journal of Polymeric Materials and Polymeric Biomaterials, vol. 69, issue 1, pp. 21-31, 2020.
hayam lotfy, M. Hegazy, M. Abdelaziz, and laila elsayed abdel fattah, "STABILITY INDICATING SPECTROPHOTOMETRIC METHODS FOR DETERMINATION OF NICARDIPINE IN THE PRESENCE OF ITS ALKALINE INDUCED DEGRADATION PRODUCTS", International Journal of Pharmacy and Pharmaceutical Sciences, vol. 8, issue 3, pp. 62-66, 2016. may_must.pdf
Lotfy, H. M., Y. M. Fayz, S. El-Hanboushy, and M. Abdelkawy, "Application of Successive and Progressive Spectrophotometric Resolution for the Analysis of Partially or Completely Overlapping Ternary Mixtures ", Analytical Chemistry Letters, vol. 6, issue 6, pp. 718-737 , 2016.
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, issue 1386-1425, pp. 167–178, 2018.
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