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Egypt

Hanan Salah

Basic information

Name : Hanan Salah
Title: Professor
Personal Info: Dr. Hanan Salah, Professor in Pharmacology and Toxicology and Biochemistry Department. She has got her masters and PhD from Cairo University.

Education

Certificate Major University Year
PhD (Pharmaceutical Sciences (Toxicology Cairo University - Faculty of Pharmacy 2003
Masters Pharmacy&Pharmaceutical Sciences Cairo University - Faculty of Pharmacy 1988
Bachelor Pharmaceutical Sciences Cairo University - Faculty of Pharmacy 1982

Researches /Publications

Olmesartan attenuates type 2 diabetes-associated liver injury: Cross-talk of AGE/RAGE/JNK, STAT3/SCOS3 and RAS signaling pathways. European Journal of Pharmacology. - 01/0

HANAN SALAHELDIN HAMDY MAHMOUD HAMDY ELABHAR

El-Nasr NM, Saleh DO, Mahmoud SS, Nofal SM, Abdelsalam RM, Safar MM

01/05/2020

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Modulation of endoplasmic reticulum stress response in gut-origin encephalopathy: Impact of vascular endothelial growth factor receptor-2 manipulation. - 01/0

HANAN SALAHELDIN HAMDY MAHMOUD HAMDY ELABHAR

Zaky DA, Wadie W, Eldehna WM, El Kerdawy AM, Abdallah DM

01/04/2020

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Chenodeoxycholic acid ameliorates AlCl3-induced Alzheimer’s disease neurotoxicity and cognitive deterioration via enhanced insulin signaling in rats - 01/0

HANAN SALAHELDIN HAMDY MAHMOUD HAMDY ELABHAR

Firas H. Bazzari , Dalaal M. Abdallah

01/05/2019

Insulin resistance is a major risk factor for Alzheimer’s disease (AD). Chenodeoxycholic acid (CDCA) and synthetic Farnesoid X receptor (FXR) ligands have shown promising outcomes in ameliorating insulin resistance associated with various medical conditions. This study aimed to investigate whether CDCA treatment has any potential in AD management through improving insulin signaling. Adult male Wistar rats were randomly allocated into three groups and treated for six consecutive weeks; control (vehicle), AD-model (AlCl3 50 mg/kg/day i.p) and CDCA-treated group (AlCl3 + CDCA 90 mg/kg/day p.o from day 15). CDCA improved cognition as assessed by Morris Water Maze and Y-maze tests and preserved normal histological features. Moreover, CDCA lowered hippocampal beta-site amyloid precursor protein cleaving enzyme 1 (BACE1) and amyloid-beta 42 (Aβ42). Although no significant difference was observed in hippocampal insulin level, CDCA reduced insulin receptor substrate-1 phosphorylation at serine-307 (pSer307-IRS1), while increased protein kinase B (Akt) activation, glucose transporter type 4 (GLUT4), peroxisome proliferator-activated receptor gamma (PPARγ) and glucagon-like peptide-1 (GLP-1). Additionally, CDCA activated cAMP response element-binding protein (CREB) and enhanced brain-derived neurotrophic factor (BDNF). Ultimately, CDCA was able to improve insulin sensitivity in the hippocampi of AlCl3-treated rats, which highlights its potential in AD managemen

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Raspberry keto ne and Garcinia Cambogia rebalanced disrupted insulin resistance and leptin silencing in rats fed high fat fructose diet - 01/0

HANAN SALAHELDIN HAMDY MAHMOUD HAMDY ELABHAR

Dalaal M. Abdallah

01/02/2019

Aim Obesity is a continually growing pandemic leading to many diseases that affect the overall quality of life. The widely marketed Garcinia cambogia (GC) and Raspberry ketone (RK) were used in this study. Despite their known dietetic effect, however, the metabolomic/signaling pathways involved in this effect are not fully elucidated. Hence, our study comprehends the possible trajectories of their combination against obesity and insulin resistance in addition to exploring their combination merit. Materials and methods Adult male Wistar rats were divided into 5 groups; viz., normal diet (ND), high fat fructose diet (HFFD), HFFD+GC (600mg/kg), HFFD+RK (55mg/kg) and HFFD+GC+RK. To assess our aim, we determined their effect on body weight, IPGTT, glucose homeostasis (glucose, insulin, HOMA IR), lipid profile parameters and SREBP-1c, oxidative stress markers, insulin and leptin signaling pathways (p-IRS-1/p-AKT/GLUT-4, and leptin/STAT-3), as well as liver and adipose tissue histopathology. Results GC/RK combinationcaused weight loss, corrected the disturbed glucose and insulin homeostasis, raised serum levels of HDL anddecreased all other lipid profile parameters. They also increased Nrf-2 expression, ad GSH, as well as p-IRS-1/p-Akt/GLUT-4 cue, while they decreased MDA, leptin/STAT-3 and SREBP-1c content compared to the HFFD group. Furthermore, the GC/RK combination abolished apoptosis, fatty changes and inflammation in hepatocytes and decreased sclerotic blood vessels and congestion in adipose tissue.

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Activation of α7 nicotinic acetylcholine receptor ameliorates zymosan-induced acute kidney injury in BALB/c mice - 01/1

HANAN SALAHELDIN HAMDY MAHMOUD HAMDY ELABHAR

Muhammad Y. Al-Shorbagy, Dalaal M. Abdallah, Sherehan M. Ibrahim

01/11/2018

Zymosan, a natural compound, provokes acute peritonitis and multiple organ dysfunction that affects the kidney, beside other organs via exaggerated inflammatory response. The aim of the present study is to test the role of cholinergic anti-inflammatory pathway (CAP) in alleviating acute kidney injury (AKI) induced by zymosan in BALB/c mice, using galantamine, a cholinesterase inhibitor, known to act via α7 nicotinic acetylcholine receptor (α7 nAChR) to stimulate CAP. Galantamine verified its anti-inflammatory effect by elevating acetylcholine (ACh) level, while abating the interleukin-6/ janus kinase 2 (Y1007/1008)/ signal transducer and activator of transcription 3 (Y705) (IL-6/ pY(1007/1008)-JAK2/ pY705-STAT3) inflammatory axis, with a consequent inhibition in suppressor of cytokine signaling 3 (SOCS3). This effect entails also the nuclear factor-kappa B (p65)/ high mobility group box protein-1/ (NF-κB (p65)/ HMGB-1) signaling pathway. Furthermore, the reno-curattive effect of galantamine was associated by a reduction in plasma creatinine (Cr), cystatin (Cys)-C, IL-18, and renal neutrophil gelatinase-associated lipocalin (NGAL), as well as an improved histopathological structure. Blocking the α7 nAChR by methyllycaconitine abolished the beneficial effect of galantamine to document the involvement of this receptor and the CAP in the amelioration of AKI induced by zymosan.

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Galantamine anti-colitic effect: Role of alpha-7 nicotinic acetylcholine receptor in modulating Jak/STAT3, NF-κB/HMGB1/RAGE and p-AKT/Bcl-2 pathways - 01/0

HANAN SALAHELDIN HAMDY MAHMOUD HAMDY ELABHAR

Shakeeb A. Wazea, Walaa Wadie, Ashraf K. Bahgat

01/03/2018

Vagal stimulation controls systemic inflammation and modulates the immune response in different inflammatory conditions, including inflammatory bowel diseases (IBD). The released acetylcholine binds to alpha-7 nicotinic acetylcholine receptor (α7 nAChR) to suppress pro-inflammatory cytokines. This provides a new range of potential therapeutic approaches for controlling inflammatory responses. The present study aimed to assess whether galantamine (Galan) anti-inflammatory action involves α7 nAChR in a 2,4,6-trinitrobenzene sulfonic acid (TNBS) model of colitis and to estimate its possible molecular pathways. Rats were assigned into normal, TNBS, sulfasalazine (Sulfz), Galan treated (10 mg/kg), methyllycaconitine (MLA; 5.6 mg/kg), and MLA + Galan groups. Drugs were administered orally once per day (11 days) and colitis was induced on the 8th day. Galan reduced the TNBS-induced ulceration, colon mass index, colonic MDA, neutrophils adhesion and infiltration (ICAM-1/MPO), inflammatory mediators (NF-κB, TNF-α, HMGB1, and RAGE), while increased the anti-apoptotic pathway (p-Akt/Bcl-2). Mechanistic study revealed that Galan increased the anti-inflammatory cytokine IL-10, phosphorylated Jak2, while reduced the inflammation controller SOCS3. However, combining MLA with Galan abrogated the beneficial anti-inflammatory/anti-apoptotic signals. The results of the present study indicate that Galan anti-inflammatory/-apoptotic/ -oxidant effects originate from the stimulation of the peripheral α7 nAChR, with the involvement of the Jak2/SOCS3 signaling pathway

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