Alaadin E. El-Haddad

Prof. Dr. Alaadin E. El-Haddad

Department of Pharmacognosy, Faculty of Pharmacy, October 6 University
orcid

Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2022 in Biomedicine & Pharmacotherapy
Verified
Journal Article
Open access
AGAbdallah M. Gendy
Abdallah M. Gendy
Mohamed ElnagarMohamed Elnagar
Mohamed Elnagar
MAMona M. Allam
Mona M. Allam
MMMohamed R. Mousa
Mohamed R. Mousa
AKAhmed E. Khodir
Ahmed E. Khodir
SEShereen S. El-Mancy
Shereen S. El-Mancy
Berberine (BBR) is a known alkaloid that has verified its protective effects against ischemia/reperfusion (I/RN) lesion in multiple organs but its poor oral bioavailability limited its use. Despite the previous works, its possible impact on the warm hepatic I/RN-induced lesion is not clear. Accordingly, a nanostructured lipid carrier of BBR (NLC BBR) was developed for enhancing its efficiency and to inspect its protective mechanistic against warm hepatic I/RN. NLC BBR formula was evaluated pharmaceutically. Wistar rats were orally pre-treated with either BBR or NLC BBR (100 mg/kg) for 2 weeks followed by hepatic I/RN (30 min/24 h). Biochemical, ELISA, qPCR, western blot, histopathological, and immunohistochemical studies were performed. Optimized NLC BBR was prepared with a particle size of 130 ± 8.3 nm. NLC BBR divulged its aptitude to safeguard the hepatic tissues partly due to anti-inflammatory capacity through downsizing the HMGB1/TLR4/NF-κB trajectory with concomitant rebating of TNF-α, iNOS, COX-2, and MPO content. Furthermore, NLC BBR antiapoptotic trait was confirmed by boosting the prosurvival protein (Bcl-2) and cutting down the pro-apoptotic marker (Bax). Moreover, its antioxidant nature was confirmed by TAC uplifting besides MDA subsiding. On the other hand, NLC BBR action embroiled autophagy flux spiking merit exemplified in Beclin-1 and LC3-II enhancement. Finally, NLC BBR administration ascertained its hepatocyte guarding action by recovering the histopathological ailment and diminishing serum transaminases. NLC BBR purveyed reasonable shielding mechanisms and subsided incidents contemporaneous to warm hepatic I/RN lesion in part, by moderating HMGB1/TLR4/NF-κB inflammatory signaling, autophagy, and apoptosis.

1 October 2020 in Food Chemistry
Verified
Journal Article
Closed access
JNJilan Nazeam
Jilan Nazeam
Walaa AlshareefWalaa Alshareef
Walaa Alshareef
MHMaged W. Helmy
Maged W. Helmy
Alaadin E. El-HaddadAlaadin E. El-Haddad
Alaadin E. El-Haddad

1 April 2011 in Free Radicals and Antioxidants
Verified
Journal Article
Closed access
MKMahmoud A. Koheil
Mahmoud A. Koheil
Mohammed Abdalla HusseinMohammed Abdalla Hussein
Mohammed Abdalla Hussein
SOSamir M. Othman
Samir M. Othman
Alaadin E. El-HaddadAlaadin E. El-Haddad
Alaadin E. El-Haddad

28 September 2023 in Pharmaceuticals
Verified
Journal Article
Open access
PDF file
Rafik MounirRafik Mounir
Rafik Mounir
Walaa AlshareefWalaa Alshareef
Walaa Alshareef
EEEman El-Gebaly
Eman El-Gebaly
Alaadin E. El-HaddadAlaadin E. El-Haddad
Alaadin E. El-Haddad
AGAbdallah M. Gendy
Abdallah M. Gendy
SESoad El-Emam
Soad El-Emam
Onion peels are often discarded, representing an unlimited amount of food by-products; however, they are a valuable source of bioactive phenolics. Thus, we utilized UPLC-MS/MS to analyze the metabolomic profiles of red (RO) and yellow (YO) onion peel extracts. The cytotoxic (SRB assay), anti-inflammatory (Griess assay), and antimicrobial (sensitivity test, MIC, antibiofilm, and SP-SDS tests) properties were assessed in vitro. Additionally, histological analysis, immunohistochemistry, and ELISA tests were conducted to investigate the healing potential in excisional skin wound injury and Candida albicans infection in vivo. RO extract demonstrated antibacterial activity, limited skin infection with C. albicans, and improved the skin’s appearance due to the abundance of quercetin and anthocyanin derivatives. Both extracts reduced lipopolysaccharide-induced nitric oxide release in vitro and showed a negligible cytotoxic effect on MCF-7 and HT29 cells. When extracts were tested in vivo for their ability to promote tissue regeneration, it was found that YO peel extract had the greatest impact. Further biochemical analysis revealed that YO extract suppressed NLRP3/caspase-1 signaling and decreased inflammatory cytokines. Furthermore, YO extract decreased Notch-1 levels and boosted VEGF-mediated angiogenesis. Our findings imply that onion peel extract can effectively treat wounds by reducing microbial infection, reducing inflammation, and promoting tissue regeneration.

11 March 2023 in Food and Chemical Toxicology
Verified
Journal Article
Closed access
AGAbdallah M. Gendy
Abdallah M. Gendy
ASAyman Soubh
Ayman Soubh
Mohamed ElnagarMohamed Elnagar
Mohamed Elnagar
EHEman Hamza
Eman Hamza
KAKawkab A. Ahmed
Kawkab A. Ahmed
HEHagar M. El-Sadek
Hagar M. El-Sadek

12 April 2022 in Molecules
Verified
Journal Article
Open access
PDF file
Heba Abdel Hady El GizawyHeba Abdel Hady El Gizawy
Heba Abdel Hady El Gizawy
Alaadin E. El-HaddadAlaadin E. El-Haddad
Alaadin E. El-Haddad
YAYasmin Attia
Yasmin Attia
SFSally A Fahim
Sally A Fahim
MZMai Zafer
Mai Zafer
ASAmr Saadeldeen
Amr Saadeldeen
Reusing food waste is becoming popular in pharmaceutical industries. Watermelon (Citrullus lanatus) rind is commonly discarded as a major solid waste. Here, the in vitro cytotoxic potential of watermelon rind extracts was screened against a panel of human cancer cell lines. Cell cycle analysis was used to determine the induction of cell death, whereas annexin V-FITC binding, caspase-3, BAX, and BCL-2 mRNA expression levels were used to determine the degree of apoptosis. VEGF-promoting angiogenesis and cell migration were also evaluated. Moreover, the identification of phytoconstituents in the rind extract was achieved using UPLC/T-TOF-MS/MS, and a total of 45 bioactive compounds were detected, including phenolic acids, flavonoids aglycones, and their glycoside derivatives. The tested watermelon rind extracts suppressed cell proliferation in seven cancer cell lines in a concentration-dependent manner. The cytotoxicity of the rind aqueous extract (RAE) was higher compared with that of the other extracts. In addition to a substantial inhibitory effect on cell migration, the RAE triggered apoptosis in HCT116 and Hep2 cells by driving the accumulation of cells in the S phase and elevating the activity of caspase-3 and the BAX/BCL-2 ratio. Thus, a complete phytochemical and cytotoxic investigation of the Citrullus lanatus rind extract may identify its potential potency as an anticancer agent.