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Alkaoud A, Khader MM, Eid A, Megahed AM. Numerical simulation of the flow of a tangent hyperbolic fluid over a stretching sheet within a porous medium, accounting for slip conditions. Heliyon 2024; 10:e28683. [PMID: 38628717 PMCID: PMC11016970 DOI: 10.1016/j.heliyon.2024.e28683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 04/26/2024] Open
Abstract
This study aims to explore the characteristics of tangent hyperbolic fluid flow along a stretching sheet. The sheet has suction or injection influences and is located inside a porous medium. The research inspects the flow and heat transfer (FHT) properties, taking into account the presence of a velocity slip condition. The flow of non-Newtonian magnetohydrodynamic fluid caused by a porous stretching sheet, taking into account thermal radiation and heat generation, has a wide range of engineering applications. These applications involve chemical reactors, energy distribution, storage of solar energy, and filtration processes. Mathematically, the flow problem is expressed as a collection of nonlinear partial differential equations. To numerically solve the resulting ODEs, the finite difference approach (FDM) is successfully used. Tables and graphs are used to display the various output values related to the hyperbolic tangent fluid. Among the different output values that appear are velocity and temperature. Significant observations from the study indicate that an increase in the power-law index, slip velocity parameter, porosity parameter, and magnetic number results in a decrease in the fluid's velocity and an increase in temperature. The completed comparison analysis shows a sizable degree of agreement with the earlier investigation.
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Affiliation(s)
- Ahmed Alkaoud
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh: 11566, Saudi Arabia
| | - Mohamed M. Khader
- Department of Mathematics and Statistics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh: 11566, Saudi Arabia
- Department of Mathematics, Faculty of Science, Benha University, Benha, Egypt
| | - Ali Eid
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh: 11566, Saudi Arabia
- Department of Astronomy, Faculty of Science, Cairo University, Giza, Egypt
| | - Ahmed M. Megahed
- Department of Mathematics, Faculty of Science, Benha University, Benha, Egypt
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Khader MM, Megahed AM, Eid A. Numerical treatment of the radiated and dissipative power-law nanofluid flow past a nonlinear stretched sheet with non-uniform heat generation. Sci Rep 2023; 13:22691. [PMID: 38114528 PMCID: PMC10730838 DOI: 10.1038/s41598-023-49547-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 12/09/2023] [Indexed: 12/21/2023] Open
Abstract
The main aim of this paper is to investigate the effect of non-uniform heat generation and viscous dissipation on the boundary layer flow of a power-law nanofluid over a nonlinear stretching sheet. Within the thermal domain, the analysis considers both thermal radiation and variable thermal conductivity. Through the use of similarity transformations, the governing boundary layer equations are transformed into a system of ODEs. The spectral collocation method (SCM) with shifted Vieta-Lucas polynomials (VLPs) is implemented to give an approximate expression for the derivatives and then use it to numerically solve the proposed system of equations. By employing this technique, the system of ODEs is converted into a system of nonlinear algebraic equations. The dimensionless temperature, concentration, and velocity are graphically presented and analyzed for various values of the relevant governing parameters. Through the presented graphical solutions, we can see that the main outcomes indicate that an increase in the power law index, thermal conductivity parameter, and radiation parameter leads to a noticeable decrease in the local Nusselt number, with reductions of around 0.05 percent, 0.23 percent, and 0.11 percent, respectively. In contrast, the Prandtl parameter demonstrates an opposing effect, elevating the local Nusselt number by about 0.1 percent. We validated the accuracy of the numerical solutions by comparing them in some special cases with existing literature.
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Affiliation(s)
- M M Khader
- Department of Mathematics and Statistics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11566, Saudi Arabia.
- Department of Mathematics, Faculty of Science, Benha University, Benha, Egypt.
| | - Ahmed M Megahed
- Department of Mathematics, Faculty of Science, Benha University, Benha, Egypt
| | - A Eid
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11566, Saudi Arabia
- Department of Astronomy, Faculty of Science, Cairo University, Giza, Egypt
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3
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Bakry M, Eid A. Stability and singularity analysis of the cosmologies with different scenarios for deceleration parameter in the presence of torsion. Heliyon 2023; 9:e15663. [PMID: 37153393 PMCID: PMC10160694 DOI: 10.1016/j.heliyon.2023.e15663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/11/2023] [Accepted: 04/18/2023] [Indexed: 05/09/2023] Open
Abstract
In the current paper, path deviation equations in absolutely parametric parallel geometries are derived. It is considered as a geodesic deviation equation. Additionally, it is modified by a torsion term. It proposes the deviation path equation that describes the trajectory deviation of a particle under the influence of the gravitational field. To examine the singularity of the Cosmological models, the modified version of the Raychaudhuri equation is utilized. The generalized law of the variation of Hubble's parameter is utilized to achieve some Cosmological models.
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Affiliation(s)
- M.A. Bakry
- Mathematics Department, Faculty of Education, Ain Shams University, Cairo, Egypt
- Corresponding author.
| | - A. Eid
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Kingdom of Saudi Arabia
- Department of Astronomy, Faculty of Science, Cairo University, Giza, Egypt
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YOUSSEF N, Noureldein M, Sfeir G, Eid A. WCN23-0528 RENO-PROTECTIVE EFFECT OF LIRAGLUTIDE IN T1DM: A NOVEL ANTI-INFLAMMATORY THEORY. Kidney Int Rep 2023. [DOI: 10.1016/j.ekir.2023.02.435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023] Open
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Mallah K, Zibara K, Kerbaj C, Eid A, Khoshman N, Ousseily Z, Kobeissy A, Cardon T, Cizkova D, Kobeissy F, Fournier I, Salzet M. Neurotrauma investigation through spatial omics guided by mass spectrometry imaging: Target identification and clinical applications. Mass Spectrom Rev 2023; 42:189-205. [PMID: 34323300 DOI: 10.1002/mas.21719] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/04/2021] [Accepted: 07/11/2021] [Indexed: 06/13/2023]
Abstract
Traumatic brain injury (TBI) represents one of the major public health concerns worldwide due to the increase in TBI incidence as a result of injuries from daily life accidents such as sports and motor vehicle transportation as well as military-related practices. This type of central nervous system trauma is known to predispose patients to several neurological disorders such as Parkinson's disease, Alzheimer's disease, chronic trauamatic encephalopathy, and age-related Dementia. Recently, several proteomic and lipidomic platforms have been applied on different TBI studies to investigate TBI-related mechanisms that have broadened our understanding of its distinct neuropathological complications. In this study, we provide an updated comprehensive overview of the current knowledge and novel perspectives of the spatially resolved microproteomics and microlipidomics approaches guided by mass spectrometry imaging used in TBI studies and its applications in the neurotrauma field. In this regard, we will discuss the use of the spatially resolved microproteomics and assess the different microproteomic sampling methods such as laser capture microdissection, parafilm assisted microdissection, and liquid microjunction extraction as accurate and precise techniques in the field of neuroproteomics. Additionally, we will highlight lipid profiling applications and their prospective potentials in characterizing molecular processes involved in the field of TBI. Specifically, we will discuss the phospholipid metabolism acting as a precursor for proinflammatory molecules such as eicosanoids. Finally, we will survey the current state of spatial neuroproteomics and microproteomics applications and present the various studies highlighting their findings in these fields.
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Affiliation(s)
- Khalil Mallah
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, South Carolina, USA
- PRASE, Lebanese University, Beirut, Lebanon
- Univ.Lille, Inserm, CHU Lille, U1192, Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (PRISM), Lille, France
| | - Kazem Zibara
- PRASE, Lebanese University, Beirut, Lebanon
- Department of Biology, Faculty of Sciences-I, Lebanese University, Beirut, Lebanon
| | - Coline Kerbaj
- Department of Biology, Faculty of Sciences-I, Lebanese University, Beirut, Lebanon
| | - Ali Eid
- Department of Basic Medical Sciences, QU Health, Qatar University, Doha, Qatar
| | - Nour Khoshman
- Department of Biology, Faculty of Sciences-I, Lebanese University, Beirut, Lebanon
| | - Zahraa Ousseily
- Department of Biology, Faculty of Sciences-I, Lebanese University, Beirut, Lebanon
| | - Abir Kobeissy
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Tristan Cardon
- Univ.Lille, Inserm, CHU Lille, U1192, Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (PRISM), Lille, France
| | - Dasa Cizkova
- Univ.Lille, Inserm, CHU Lille, U1192, Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (PRISM), Lille, France
- Center for Experimental and Clinical Regenerative Medicine, University of Veterinary Medicine and Pharmacy in Košice, Košice, Slovakia
| | - Firas Kobeissy
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Isabelle Fournier
- Univ.Lille, Inserm, CHU Lille, U1192, Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (PRISM), Lille, France
- Institut Universitaire de France, Paris, France
| | - Michel Salzet
- Univ.Lille, Inserm, CHU Lille, U1192, Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (PRISM), Lille, France
- Institut Universitaire de France, Paris, France
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Alsamri H, Alneyadi A, Muhammad K, Ayoub MA, Eid A, Iratni R. Carnosol Induces p38-Mediated ER Stress Response and Autophagy in Human Breast Cancer Cells. Front Oncol 2022; 12:911615. [PMID: 35712465 PMCID: PMC9194514 DOI: 10.3389/fonc.2022.911615] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 05/03/2022] [Indexed: 11/25/2022] Open
Abstract
We recently reported that carnosol induces ROS-dependent autophagy and apoptosis in breast cancer cells. We also reported that carnosol inhibits breast cancer cell migration, invasion, and in ovo tumor growth, as well as targets STAT3, PCAF, and p300 to proteasome degradation. Here, we investigated the molecular mechanisms underlying its anti-malignant activity in breast cancer. We report that carnosol induces a ROS-dependent type I and type II programmed cell death (PCD-I or PCD-II, respectively), which occurred independently of each other. Indeed, chemical inhibition of autophagy had no effect on the induction of apoptosis, evident by the absence of cleaved PARP. Electron microscopy revealed that carnosol-treated cells exhibited enlarged endoplasmic reticulum, characteristic of ER stress. Markers of the three unfolded protein response pathways (PERK, IRE-1 α, and ATF6), namely ATF4, CHOP, phospho-IRE-1α, XBP1S, and cleaved ATF6 were upregulated in a ROS-dependent manner. In addition, carnosol induced a ROS-dependent activation of p38MAPK, increased the overall level of protein polyubiquitination, and targeted mTOR protein to proteasome degradation. Interestingly, inhibition of p38MAPK, by SB202190 and 203580, reduced cell death, selectively blocked the induction of IRE-1α and ATF6 UPR sensors and inhibited autophagy. In addition, inhibition of p38 reduced the carnosol-induced polyubiquitination and rescued mTOR, PCAF, and STAT3 from proteasomal degradation. Importantly, activation of PERK sensors and induction of apoptosis occurred independently of p38 activation. Taken together, our results suggest that ROS-dependent induced-ER stress contributes to carnosol-induced apoptotic and autophagic cell death in breast cancer cells, and further confirm that carnosol is a promising agent for breast cancer therapy.
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Affiliation(s)
- Halima Alsamri
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Aysha Alneyadi
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Khalid Muhammad
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Mohammed Akli Ayoub
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Ali Eid
- Department of Basic Medical Sciences, College of Medicine, Qatar University Health, Qatar University, Doha, Qatar
| | - Rabah Iratni
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
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Merii MH, Fardoun MM, El-Asmar K, Khalil MI, Eid A, Dhaini HR. Effect of BPA on CYP450s expression, and nicotine modulation, in fetal rat brain. Neurotoxicol Teratol 2022; 92:107095. [DOI: 10.1016/j.ntt.2022.107095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/04/2022] [Accepted: 05/07/2022] [Indexed: 10/18/2022]
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Saleh FA, Jaber H, Eid A. Effect of Adipose derived mesenchymal stem cells on multiple Organ Injuries in diet-induced obese mice. Tissue Barriers 2021; 9:1952150. [PMID: 34308754 PMCID: PMC8794509 DOI: 10.1080/21688370.2021.1952150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 10/20/2022] Open
Abstract
Background: Obesity is a complex disease involving the accumulation of body fat that can inflict a substantial risk to health due to the potent role it plays in the development of a series of chronic diseases including cardiovascular diseases (CVD), nonalcoholic fatty liver diseases (NAFLD), kidney diseases, diabetes, and some cancers. Despite all efforts made, no therapy has succeeded in reversing the obesity pandemic and its associated diseases. Herein, the aim was to study the effect of adipose-derived mesenchymal stem cells on obesity-induced multi-organ injuries in a diet-induced obese mouse model. Male C57BL/6 mice were fed with regular chow diet or high fat diet (HFD) to induce obesity for 15 weeks after which the mice were administered two doses of adipose-derived mesenchymal stem cells (ASC-treated groups) or media as control (media-treated groups). Animals were sacrificed and adipose, hepatic, renal, and cardiac tissues were obtained for histopathological evaluation. Mice on HFD showed excessive pathological alterations such as epididymal adipose tissue expansion, hepatic fat accumulation, glomerular swelling, and cardiomyocyte hypertrophy. However, treatment with ASCs significantly reversed the significant histopathological abnormalities induced by obesity. In conclusion, this study demonstrated the therapeutic effects of adipose-derived mesenchymal stem cells on obesity-associated complications such as NAFLD, CVD, and kidney disorders in a diet-induced obese animal model, which were partly due to the attenuation of inflammatory cytokines such as TNF-α and IL-6.
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Affiliation(s)
- Fatima A. Saleh
- Department of Medical Laboratory Technology, Faculty of Health Sciences, Beirut Arab University, Beirut, Lebanon
| | - Hala Jaber
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Beirut Arab University, Beirut, Lebanon
| | - Ali Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha, Qatar
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Abstract
BACKGROUND The intrauterine environment is a key determinant for long-term health outcomes. Adverse fetal environments, such as maternal diabetes, obesity and placental insufficiency are strongly associated with long-term health risks in children. Little is known about differences in fetal cardiac output hemodynamics of diabetic mothers (DM) vs. non-diabetic mothers (NDM). Our study aims to investigate the left-sided, right-sided, and combined cardiac output (CCO) in fetuses of DM vs. NDM. METHODS Retrospective data were collected in fetuses of DM (N = 532) and NDM (103) at mean gestational age 24 weeks. Examination included 2D echo and pulse wave Doppler. Wilcoxon rank sum tests and Chi-square tests were used to test for distribution difference of maternal and fetal continuous and categorical measures respectively between DM and NDM. Intraclass correlation coefficients were calculated to assess intra-observer reliability of fetal cardiac measurements. RESULTS DM mothers had higher mean weight (89.7±22.2 kg) than NDM (76.8±19.8 kg), p < 0.0001 and higher mean BMI (33.4±7.5) than NDM (28.3±5.8), p < 0.0001. C-section delivery occurred in 66% of DM vs. 35% of NDM fetuses. Fetuses of DM mothers had significantly larger semilunar valve diameter, higher left ventricular (LV) output, higher combined cardiac output and lower right ventricle /left ventricle ratio compared to NDM. CONCLUSION The greater CCO (adjusted for fetal weight), left sided cardiac output in the fetuses of DM, compared to NDM, represent differences in cardiac adaptation to the diabetic environment.
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Affiliation(s)
- S L Narasimhan
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - A Eid
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - A Bhatia
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - C Davey
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - J Steinberger
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
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Ghareghani M, Ghanbari A, Eid A, Shaito A, Mohamed W, Mondello S, Zibara K. Hormones in experimental autoimmune encephalomyelitis (EAE) animal models. Transl Neurosci 2021; 12:164-189. [PMID: 34046214 PMCID: PMC8134801 DOI: 10.1515/tnsci-2020-0169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 04/05/2021] [Accepted: 04/14/2021] [Indexed: 12/30/2022] Open
Abstract
Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system (CNS) in which activated immune cells attack the CNS and cause inflammation and demyelination. While the etiology of MS is still largely unknown, the interaction between hormones and the immune system plays a role in disease progression, but the mechanisms by which this occurs are incompletely understood. Several in vitro and in vivo experimental, but also clinical studies, have addressed the possible role of the endocrine system in susceptibility and severity of autoimmune diseases. Although there are several demyelinating models, experimental autoimmune encephalomyelitis (EAE) is the oldest and most commonly used model for MS in laboratory animals which enables researchers to translate their findings from EAE into human. Evidences imply that there is great heterogeneity in the susceptibility to the induction, the method of induction, and the response to various immunological or pharmacological interventions, which led to conflicting results on the role of specific hormones in the EAE model. In this review, we address the role of endocrine system in EAE model to provide a comprehensive view and a better understanding of the interactions between the endocrine and the immune systems in various models of EAE, to open up a ground for further detailed studies in this field by considering and comparing the results and models used in previous studies.
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Affiliation(s)
- Majid Ghareghani
- Neuroscience Laboratory, CHU de Québec Research Center and Department of Molecular Medicine, Faculty of Medicine, Laval University, Québec City, QC, Canada
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Amir Ghanbari
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Ali Eid
- Biomedical and Pharmaceutical Research Unit and Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - Abdullah Shaito
- Department of Biological and Chemical Sciences, Faculty of Arts and Sciences, Lebanese International University, Beirut, Lebanon
| | - Wael Mohamed
- Clinical Pharmacology Department, Menoufia Medical School, Menoufia University, Shibin Al Kawm, Egypt
- Department of Basic Medical Sciences, Kulliyyah of Medicine, International Islamic University Malaysia (IIUM), Kuantan, Pahang, Malaysia
| | - Stefania Mondello
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Kazem Zibara
- PRASE, Lebanese University, Beirut, Lebanon
- Biology Department, Faculty of Sciences – I, Lebanese University, Beirut, Lebanon
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Jaber H, Issa K, Eid A, Saleh FA. The therapeutic effects of adipose-derived mesenchymal stem cells on obesity and its associated diseases in diet-induced obese mice. Sci Rep 2021; 11:6291. [PMID: 33737713 PMCID: PMC7973738 DOI: 10.1038/s41598-021-85917-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 03/08/2021] [Indexed: 12/15/2022] Open
Abstract
Obesity is a global public health concern associated with increased risk of several comorbidities. Due to the limited effectiveness of current therapies, new treatment strategies are needed. Our aim was to examine the effect of adipose-derived mesenchymal stem cells (AD-MSCs) on obesity and its associated diseases in a diet-induced obese (DIO) animal model. C57BL6 mice were fed with either high fat diet (HFD) or CHOW diet for 15 weeks. Obese and lean mice were then subjected to two doses of AD-MSCs intraperitoneally. Mice body weight and composition; food intake; blood glucose levels; glycated hemoglobin (HbA1c), intraperitoneal glucose tolerance test and atherogenic index of plasma (AIP) were measured. Pro-inflammatory cytokines, tumor necrosis factor-α and interleukin-6, were also determined. AD-MSCs treatment reduced blood glucose levels, HbA1c and AIP as well as improved glucose tolerance in DIO mice. In addition, MSCs caused significant attenuation in the levels of inflammatory mediators in HFD-fed mice. Taken together, AD-MSCs were effective in treating obesity-associated diabetes in an animal model as well as protective against cardiovascular diseases as shown by AIP, which might be partly due to the attenuation of inflammatory mediators. Thus, AD-MSCs may offer a promising therapeutic potential in counteracting obesity-related diseases in patients.
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Affiliation(s)
- Hala Jaber
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Beirut Arab University, Beirut, Lebanon
| | - Khodr Issa
- Department of Molecular Diagnostics, Doctors' Center Laboratories, Beirut, Lebanon.,Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Ali Eid
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon.,Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar.,Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha, Qatar
| | - Fatima A Saleh
- Department of Medical Laboratory Technology, Faculty of Health Sciences, Beirut Arab University, Beirut, 115020, Lebanon.
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Ali AH, Younis N, Abdallah R, Shaer F, Dakroub A, Ayoub M, Iratni R, Yassine HM, Zibara K, Orekhov A, El-Yazbi AF, Eid A. Lipid-Lowering Therapies for Atherosclerosis: Statins, Fibrates, Ezetimibe and PCSK9 monoclonal antibodies. Curr Med Chem 2021; 28:7427-7445. [PMID: 33655822 DOI: 10.2174/0929867328666210222092628] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 12/14/2022]
Abstract
Cardiovascular disease (CVD) remains the primary cause of global morbidity and mortality. CVD includes various life-threatening conditions such as myocardial infarction, stroke and peripheral arterial diseases. In this context, atherosclerosis continues to play the principal role in the pathogenesis of these conditions. Atherosclerosis emanates from a set of modifiable and non-modifiable risk factors that include age, male gender, family history, obesity, smoking, diabetes mellitus and hypertension. Recent evidence classifies atherosclerosis as a latent disease affecting all-sized arteries with a predilection for arterial branching points of decreased or absent blood supply. Atherosclerosis is not only a lipid metabolism disorder, but is also a chronic inflammatory one. In this review, we provide a synoptic discussion of the underlying pathological mechanisms of atherosclerosis along with the currently applied therapeutic interventions. We then discuss the classical lipid-lowering therapies as well as the newly discovered therapies. For the classical therapies, we point out the importance of statins and ezetimibe in reducing plasma cholesterol levels by virtue of their effects on synthesis, reuptake and intestinal absorption of cholesterol. We also discuss the role of fibrates in modulating lipid metabolism and improving the ratio of high-density to low-density density lipoproteins. We then focus on the more recent molecular and genetic interventions exemplified by proprotein convertase subtilisin/kexin type 9 (PCSK9) monoclonal antibodies, evinacumab, and microRNA inhibitors. Special attention is also given to clinical trials involving these therapies.
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Affiliation(s)
- Adel Hajj Ali
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236. Lebanon
| | - Nour Younis
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236. Lebanon
| | - Rola Abdallah
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236. Lebanon
| | - Farah Shaer
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236. Lebanon
| | - Ali Dakroub
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236. United Arab Emirates
| | - Mohammed Ayoub
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, P.O. Box 17551. United Arab Emirates
| | - Rabah Iratni
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, P.O. Box 17551. United Arab Emirates
| | | | - Kazem Zibara
- Biology department, Faculty of Sciences, Lebanese University, Beirut. Lebanon
| | - Alexander Orekhov
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Institute of Human Morphology, 3 Tsyurupa Street, Moscow 117418. Russian Federation
| | - Ahmed Fawzy El-Yazbi
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236. Lebanon
| | - Ali Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, P.O. Box 2713. Qatar
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Rabhi C, Orfeuvre B, Eid A, Griffet J, Rabattu PY, Courvoisier A. Functional impact of osteosuture in medial bilateral clavicular physeal fracture in teenagers. Int J Surg Case Rep 2021; 80:105656. [PMID: 33636404 PMCID: PMC7918264 DOI: 10.1016/j.ijscr.2021.105656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/14/2021] [Accepted: 02/14/2021] [Indexed: 11/25/2022] Open
Abstract
Medial bilateral clavicular physeal fracture. Pediatric orthopaedic surgery. Thoracic paediatric traumatology. Functional impact of osteosuture.
Introduction Proximal physeal fracture of the medial clavicular physis is a rare specific injury occurring in the immature skeletal. Several studies describe unilateral cases with posterior or anterior displacement and the following complications (vascular and mediastinal compression). An immediate diagnosis and management are necessary to avoid complications. The clinical diagnostic might be obvious or difficult, pain and swelling in the sternoclavicular joint area, sometimes a deformity and focal tenderness. A chest X-Ray may help and a three-dimensional reconstructed computed tomography scan has to be done to evaluate the lesions before surgery. The imaging is useful to confirm and specify the diagnostic and the displacement. Presentation of case This case report presents 4 cases of proximal physeal fracture of the medial clavicular physis in 2 male-teenagers with bilateral displacement, one posterior and the other asymmetric. Discussion After reviewing the literature of the unilateral clavicular physeal fracture, we can conclude that the ideal management of these injuries has not been well described. An open reduction associated an osteosuture with non-resorbable suture was performed. One-year follow-up, both of them had full recovery without any functional impact or any complains. This management of the proximal physeal fracture of the medial clavicle on children shows an excellent result according our cases and the literature. Conclusion The purpose of this study is to evaluate the functional impact of osteosuture in medial bilateral clavicular physeal fracture in teenagers after 1-year follow-up.
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Affiliation(s)
- C Rabhi
- Department of Pediatric Ortopaedic, Universitary Hospital Couple-Enfant, CHU of Grenoble-Alpes, France; University of Grenoble-Alpes, France.
| | - B Orfeuvre
- Department of Pediatric Ortopaedic, Universitary Hospital Couple-Enfant, CHU of Grenoble-Alpes, France; University of Grenoble-Alpes, France
| | - A Eid
- Department of Pediatric Ortopaedic, Universitary Hospital Couple-Enfant, CHU of Grenoble-Alpes, France; University of Grenoble-Alpes, France
| | - J Griffet
- Department of Pediatric Ortopaedic, Universitary Hospital Couple-Enfant, CHU of Grenoble-Alpes, France; University of Grenoble-Alpes, France
| | - P Y Rabattu
- Service de Department of Pediatric Surgery, Universitary Hospital Couple-Enfant, CHU of Grenoble-Alpes, France; University of Grenoble-Alpes, France
| | - A Courvoisier
- Department of Pediatric Ortopaedic, Universitary Hospital Couple-Enfant, CHU of Grenoble-Alpes, France; University of Grenoble-Alpes, France
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14
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Khalifa H, El-Safty SA, Reda A, Eid A, Elmarakbi A, Shenashen MA. Mesoscopic open-eye core-shell spheroid carved anode/cathode electrodes for fully reversible and dynamic lithium-ion battery models. Nanoscale Adv 2020; 2:3525-3541. [PMID: 36134271 PMCID: PMC9418016 DOI: 10.1039/d0na00203h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 06/19/2020] [Indexed: 06/16/2023]
Abstract
We report on the key influence of mesoscopic super-open-eye core-shell spheroids of TiO2- and LiFePO4-wrapped nanocarbon carved anode/cathode electrodes with uniform interior accommodation/storage pockets for the creation of fully reversible and dynamic Li-ion power battery (LIB) models. The mesoscopic core-shell anode/cathode electrodes provide potential half- and full-cell LIB-CR2032 configuration designs, and large-scale pouch models. In these variable mesoscopic LIB models, the broad-free-access and large-open-eye like gate-in-transport surfaces featured electrodes are key factors of built-in LIBs with excellent charge/discharge capacity, energy density performances, and outstanding cycling stability. Mesoscopic open-eye spheroid full-LIB-CR2032 configuration models retain 77.8% of the 1st cycle discharge specific capacity of 168.68 mA h g-1 after multiple cycling (i.e., 1st to 2000th cycles), efficient coulombic performance of approximately 99.6% at 0.1C, and high specific energy density battery of approximately 165.66 W h kg-1 at 0.1C. Furthermore, we have built a dynamic, super-open-mesoeye pouch LIB model using dense packing sets that are technically significant to meet the tradeoff requirements and long-term driving range of electric vehicles (EVs). The full-pouch package LIB models retain a powerful gate-in-transport system for heavy loaded electron/Li+ ion storage, diffusion, and truck movement through open-ended out/in and then up/downward eye circular/curvy folds, thereby leading to substantial durability, and remarkable electrochemical performances even after long-life charge/discharge cycling.
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Affiliation(s)
- H Khalifa
- National Institute for Materials Science (NIMS) Sengen 1-2-1 Tsukuba Ibaraki 305-0047 Japan https://www.samurai.nims.go.jp/profiles/sherif_elsafty
| | - S A El-Safty
- National Institute for Materials Science (NIMS) Sengen 1-2-1 Tsukuba Ibaraki 305-0047 Japan https://www.samurai.nims.go.jp/profiles/sherif_elsafty
| | - A Reda
- National Institute for Materials Science (NIMS) Sengen 1-2-1 Tsukuba Ibaraki 305-0047 Japan https://www.samurai.nims.go.jp/profiles/sherif_elsafty
| | - A Eid
- National Institute for Materials Science (NIMS) Sengen 1-2-1 Tsukuba Ibaraki 305-0047 Japan https://www.samurai.nims.go.jp/profiles/sherif_elsafty
| | - A Elmarakbi
- Department of Mechanical & Construction Engineering, Faculty of Engineering and Environment, Northumbria University Newcastle upon Tyne NE1 8ST UK
| | - M A Shenashen
- National Institute for Materials Science (NIMS) Sengen 1-2-1 Tsukuba Ibaraki 305-0047 Japan https://www.samurai.nims.go.jp/profiles/sherif_elsafty
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15
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Kaddoura M, AlIbrahim M, Hijazi G, Soudani N, Audi A, Alkalamouni H, Haddad S, Eid A, Zaraket H. COVID-19 Therapeutic Options Under Investigation. Front Pharmacol 2020; 11:1196. [PMID: 32848795 PMCID: PMC7424051 DOI: 10.3389/fphar.2020.01196] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 07/22/2020] [Indexed: 12/15/2022] Open
Abstract
Since its emergence in China in December 2019, COVID-19 has quickly spread around the globe causing a pandemic. Vaccination or the development of herd immunity seems the only way to slow down the spread of the virus; however, both are not achievable in the near future. Therefore, effective treatments to mitigate the burden of this pandemic and reduce mortality rates are urgently needed. Preclinical and clinical studies of potential antiviral and immunomodulatory compounds and molecules to identify safe and efficacious therapeutics for COVID-19 are ongoing. Two compounds, remdesivir, and dexamethasone have been so far shown to reduce COVID-19-associated death. Here, we provide a review of the potential therapeutic agents being considered for the treatment and management of COVID-19 patients.
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Affiliation(s)
- Malak Kaddoura
- Department of Experimental Pathology, Immunology & Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
- Center for Infectious Disease Research, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Malak AlIbrahim
- Department of Experimental Pathology, Immunology & Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
- Center for Infectious Disease Research, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Ghina Hijazi
- Department of Experimental Pathology, Immunology & Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
- Center for Infectious Disease Research, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Nadia Soudani
- Department of Experimental Pathology, Immunology & Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
- Center for Infectious Disease Research, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Amani Audi
- Department of Experimental Pathology, Immunology & Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
- Center for Infectious Disease Research, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Habib Alkalamouni
- Department of Experimental Pathology, Immunology & Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
- Center for Infectious Disease Research, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Salame Haddad
- Department of Experimental Pathology, Immunology & Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
- Center for Infectious Disease Research, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Ali Eid
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Hassan Zaraket
- Department of Experimental Pathology, Immunology & Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
- Center for Infectious Disease Research, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
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16
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Abdullah RH, Hamzeh K, Bouhadir K, Eid A. Novel Anti‐Caner Nucleoside Analogs: Synthesis and Activity. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.02415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - Ali Eid
- American University of Beirut
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17
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Ouhtit A, Gupta I, Gaur RL, Fernando A, Abd El-Azim AO, Eid A. Deregulation of cell growth and apoptosis in UV-induced melanomagenesis. Front Biosci (Elite Ed) 2020; 12:223-236. [PMID: 32114458 DOI: 10.2741/e868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We have previously characterized the role of p16/Rb in coordinating the early events in UVB-irradiated skin. As an extension to this work, normal melanocytes and mutant p16-inducible melanoma cell models were employed to elucidate further the coordinated molecular mechanisms occurring during early UVB exposure. Our results showed that melanocytes expressed p16 only at a high UVB dose, with undetectable p53. The Bax/Bcl2 ratio increased at higher dose, indicating that the cells had selected apoptosis program. In the wt-p16 melanoma cells, while low UVB dose upregulated p16, the high dose suppressed it, and further abrogated Cdk6 but not Cdk4. Interestingly, while induction of mutant-p16 increased Cdk4, cdk6 and pRb proteins, UVB exposure did not affect this increase. More interestingly, p16 mutant cells increased their resistance to apoptosis at high UVB-dose, associated with decreased Bax and increased Bcl2 expression. Thus, mutant-p16 appears to dictate a deregulation of cell cycle and increased resistance to apoptosis in melanoma cells. Together, the data indicate a deregulation of p16INK4/Rb pathway as an early event in UVB-induced melanomagenesis.
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Affiliation(s)
- Allal Ouhtit
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar,
| | - Ishita Gupta
- Department of Genetics, College of Medicine and Health Sciences, Sultan Qaboos University, PO Box 35, PC 123, Al Khoud, Sultanate of Oman
| | - Rajiv L Gaur
- Department of Pathology, Stanford University, CA, USA
| | | | - Amira O Abd El-Azim
- Department of Zoology, Faculty of Sciences, Mansoura University, Al Mansoura, Egypt
| | - Ali Eid
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
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18
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Spicer GLC, Eid A, Wangpraseurt D, Swain TD, Winkelmann JA, Yi J, Kühl M, Marcelino LA, Backman V. Author Correction: Measuring light scattering and absorption in corals with Inverse Spectroscopic Optical Coherence Tomography (ISOCT): a new tool for non-invasive monitoring. Sci Rep 2019; 9:18056. [PMID: 31772266 PMCID: PMC6879626 DOI: 10.1038/s41598-019-54379-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- G L C Spicer
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL, USA.,Wellman Center for Photomedicine, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
| | - A Eid
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA
| | - D Wangpraseurt
- Department of Chemistry, University of Cambridge, Lensfield Road, UK.,Scripps Institution of Oceanography, University of California, San Diego, USA
| | - T D Swain
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL, USA.,Integrative Research Center, Field Museum of Natural History, Chicago, IL, USA.,Department of Marine and Environmental Sciences, Nova Southeastern University, Dania Beach, FL, USA
| | - J A Winkelmann
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA
| | - J Yi
- Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - M Kühl
- Marine Biological Section, Department of Biology, University of Copenhagen, Helsingør, Denmark.,Climate Change Cluster, University of Technology Sydney, Ultimo, NSW, Australia
| | - L A Marcelino
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL, USA. .,Integrative Research Center, Field Museum of Natural History, Chicago, IL, USA.
| | - V Backman
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA.
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19
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Samaha A, Fawaz M, Eid A, Gebbawi M, Yahfoufi N. Data on the relationship between internet addiction and stress among Lebanese medical students in Lebanon. Data Brief 2019; 25:104198. [PMID: 31463341 PMCID: PMC6706676 DOI: 10.1016/j.dib.2019.104198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 06/17/2019] [Accepted: 06/20/2019] [Indexed: 11/02/2022] Open
Abstract
Stress and behavioral addiction are becoming major health problems growing in strength and prevalence. They are often associated with a large array of debilitating diseases and conditions including psychosocial impairments. Medical students remain a vulnerable territory for developing stress and addiction mainly relating to Internet use. Data was gathered from medical students around Lebanon on the relationship between stress and internet addiction. The data in this article provides demographic data about medical students in Lebanon, their stress levels, sources of stress as well as the level of internet addiction recorded in relation to their stress levels. The analyzed data is provided in the tables included in this article.
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Affiliation(s)
- A. Samaha
- Lebanese University, Doctoral School for Literature and Social Sciences, Lebanon
- Beirut Arab University, Faculty of Health Sciences, Lebanon
- Department of Biomedical Sciences, Lebanese International University, Lebanon
- Lebanese University, Faculty of Public Health, Lebanon
| | - M. Fawaz
- Beirut Arab University, Faculty of Health Sciences, Lebanon
| | - A. Eid
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Lebanon
| | - M. Gebbawi
- Department of Pediatrics and Adolescent Medicine, American University of Beirut, Lebanon
| | - N. Yahfoufi
- Lebanese University, Doctoral School for Literature and Social Sciences, Lebanon
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20
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Moussalem CK, Massaad E, Baassiri W, Akhtar Anwar M, Kobeissy F, Eid A, Darwiche N, Omeis I. Spinal sarcomas and immunity: An undervalued relationship. Semin Cancer Biol 2019; 64:36-50. [PMID: 31254615 DOI: 10.1016/j.semcancer.2019.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 06/11/2019] [Accepted: 06/13/2019] [Indexed: 11/17/2022]
Abstract
Sarcomas, especially spine sarcomas, are rare yet debilitating and are underestimated types of cancer. Treatment options for spine sarcomas are limited to chemotherapy, radiotherapy and surgical intervention. Accumulating evidence suggests a complex course associated with the treatment of spine sarcomas as compared to other soft tissue sarcomas in the extremities since adjuvant therapy adds limited success to the oncological outcome. Likewise, the limitations of surgical interventions imposed by the proximity and high sensitivity of the spinal cord, leads to an increased recurrence and mortality rates associated with spine sarcomas. Finding novel treatment options to spine sarcomas as such is inevitable, necessitating a more thorough understanding of the different mechanisms of the underlying etiologies of these tumors. In this review, we discuss the most recent studies tackling the involvement of the immune system; a key player in the emergence of the different types of spine sarcomas and the promising immune-mediated targeted therapy that can be applied in these kind of rare cancers.
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Affiliation(s)
- Charbel K Moussalem
- Division of Neurosurgery, Department of Surgery, American University of Beirut Medical Center, Lebanon
| | - Elie Massaad
- Faculty of Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Wassim Baassiri
- Division of Neurosurgery, Department of Surgery, American University of Beirut Medical Center, Lebanon
| | - M Akhtar Anwar
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Lebanon
| | - Firas Kobeissy
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Lebanon
| | - Ali Eid
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Lebanon
| | - Nadine Darwiche
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Lebanon
| | - Ibrahim Omeis
- Division of Neurosurgery, Department of Surgery, American University of Beirut Medical Center, Lebanon.
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21
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Rafeh RW, Mroueh A, Eid A, El‐Yazbi AF. A Possible Role of Perivascular Adipocyte Stress in Cardiovascular Dysfunction Prior to the Onset of Diabetes. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.512.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rim Wassim Rafeh
- Pharmacology and ToxicologyAmerican University of BeirutBeirutLebanon
| | - Ali Mroueh
- Pharmacology and ToxicologyAmerican University of BeirutBeirutLebanon
| | - Ali Eid
- Pharmacology and ToxicologyAmerican University of BeirutBeirutLebanon
| | - Ahmed F. El‐Yazbi
- Pharmacology and ToxicologyAmerican University of BeirutBeirutLebanon
- Alexandria UniversityAlexandriaEgypt
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22
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Eid A, Ali. B, Eldahrawy A, Salama F, Abd El-Naby A. GROWTH PERFORMANCE AND SURVIVAL OF GILTHEAD SEABREAM SPARUS AURATA LARVAE FED ROTIFER AND ARTEMIA. Egyptian Journal of Nutrition and Feeds 2018; 21:899-907. [DOI: 10.21608/ejnf.2018.75831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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23
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Khatib MA, Sleiman F, Saad EI, Fouad HH, Issa K, Eid A, Eid A, El‐Yazbi AF. Mild hyper‐caloric intake is associated with peri‐vascular adipose inflammation and vascular dysfunction: modulation by antidiabetic drugs. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.569.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Fatima Sleiman
- Pharmacology and ToxicologyThe American University of BeirutBeirutLebanon
| | | | - Hosny H. Fouad
- Pharmacology and ToxicologyUniversity of AlexandriaAlexandriaEgypt
| | - Khodr Issa
- Pharmacology and ToxicologyThe American University of BeirutBeirutLebanon
| | - Ali Eid
- Pharmacology and ToxicologyThe American University of BeirutBeirutLebanon
| | - Assaad Eid
- Pharmacology and ToxicologyUniversity of AlexandriaAlexandriaEgypt
| | - Ahmed F. El‐Yazbi
- Pharmacology and ToxicologyThe American University of BeirutBeirutLebanon
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24
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Bakkar NM, Mroueh A, Ghali R, Al‐Assi O, Kaplan A, Mougharbil N, Eid A, Zouein F, El‐Yazbi A. Cardiac autonomic neuropathy as a result of mild hyper‐caloric challenge in absence of signs of diabetes: Modulation by anti‐diabetic drugs. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.697.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Ali Mroueh
- Pharmacology and ToxicologyAmerican University of BeirutBeirutLebanon
| | - Rana Ghali
- American University of BeirutBeirutLebanon
| | - Ola Al‐Assi
- Pharmacology and ToxicologyAmerican University of BeirutBeirutLebanon
| | | | | | - Ali Eid
- American University of BeirutBeirutLebanon
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25
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SLEIMAN FATIMA, Mroueh A, Eid A, El‐Yazbi AF. Phenotypic alteration of vascular smooth muscle cells as a sequence of mild hyper‐caloric intake in the absence of hyperglycemia: Potential modulation by antidiabetic drugs. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.700.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Ali Mroueh
- American University of BeirutBeirutLebanon
| | - Ali Eid
- American University of BeirutBeirutLebanon
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26
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Affiliation(s)
- Rachel Njeim
- Department of Pharmacology and ToxicologyAmerican University of BeirutBeirutLebanon
| | - Ali Eid
- Department of Pharmacology and ToxicologyAmerican University of BeirutBeirutLebanon
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27
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Wright K, Bihaqi SW, Lahouel A, Masoud A, Mushtaq F, Leso A, Eid A, Zawia NH. Importance of tau in cognitive decline as revealed by developmental exposure to lead. Toxicol Lett 2017; 284:63-69. [PMID: 29203278 DOI: 10.1016/j.toxlet.2017.11.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 11/28/2017] [Accepted: 11/30/2017] [Indexed: 12/21/2022]
Abstract
Previous reports by us have determined that developmental exposure to the heavy metal lead (Pb) resulted in cognitive impairment in aging wildtype mice, and a latent induction in biomarkers associated with both the tau and amyloid pathways. However, the relationship between these two pathways and their correlation to cognitive performance needs to be scrutinized. Here, we investigated the impact of developmental Pb (0.2%) exposure on the amyloid and tau pathways in a transgenic mouse model lacking the tau gene. Cognitive function, and levels of intermediates in the amyloid and tau pathways following postnatal Pb exposure were assessed on young adult and mature transgenic mice. No significant difference in behavioral performance, amyloid precursor protein (APP), or amyloid beta (Aβ) levels was observed in transgenic mice exposed to Pb. Regulators of the tau pathway were impacted by the absence of tau, but no additional change was imparted by Pb exposure. These results revealed that developmental Pb exposure does not cause cognitive decline or change the expression of the amyloid pathway in the absence of tau. The essentiality of tau to mediate cognitive decline by environmental perturbations needs further investigation.
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Affiliation(s)
- K Wright
- Department of Cell and Molecular Biology, University of Rhode Island, Kingston Rhode Island, 02881, USA
| | - S W Bihaqi
- George and Anne Ryan Institute for Neuroscience, University of Rhode Island, Kingston Rhode Island, 02881, USA
| | - A Lahouel
- Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston Rhode Island, 02881, USA
| | - A Masoud
- Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston Rhode Island, 02881, USA; Biochemical Technology Program, Faculty of Applied Science, Thamar University, Yemen
| | - F Mushtaq
- Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston Rhode Island, 02881, USA
| | - A Leso
- Interdisciplinary Neuroscience Program, University of Rhode Island, Kingston Rhode Island, 02881, USA
| | - A Eid
- Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston Rhode Island, 02881, USA; Interdisciplinary Neuroscience Program, University of Rhode Island, Kingston Rhode Island, 02881, USA
| | - N H Zawia
- George and Anne Ryan Institute for Neuroscience, University of Rhode Island, Kingston Rhode Island, 02881, USA; Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston Rhode Island, 02881, USA; Interdisciplinary Neuroscience Program, University of Rhode Island, Kingston Rhode Island, 02881, USA.
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28
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M. I, Eid A, Mohamed K, Abd-elfattah B. Effect of Replacement of Soybean Meal with Duckweed (Lemna minor) Meal on the Growth Performance and Feed Utilization in Nile Tilapia Fingerlings. Journal of Animal, Poultry & Fish Production 2017; 6:7-12. [DOI: 10.21608/japfp.2017.7415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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29
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Ahmad A, Mitrofanova A, Fornoni A, Eid A, Marples B, Zeidan Y. Novel Role for Sphingolipid Metabolism in Radiation Nephropathy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Gerges Geagea A, Rizzo M, Eid A, Hajj Hussein I, Zgheib Z, Zeenny MN, Jurjus R, Uzzo ML, Spatola GF, Bonaventura G, Leone A, Massaad-Massade L, Jurjus A. Tea catechins induce crosstalk between signaling pathways and stabilize mast cells in ulcerative colitis. J BIOL REG HOMEOS AG 2017; 31:865-877. [PMID: 29254289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
It is well documented that nutraceuticals, in general, and Green tea catechins, in particular, possess a potential therapeutic value in inflammatory bowel diseases (IBD) due to their anti-oxidative and anti-inflammatory effects. This study aimed to investigate the possible mechanism of action of catechins in a rat model of colitis induced by 2.4.6 trinitrobenzene sulfonic acid (TNBS). Thirty-five young adult Sprague-Dawley rats were divided into four groups: normal control (n=5), catechins (n=9), TNBS (n=9) and TNBS plus catechins (n=12) treated. Catechin in the form of Epigallocatechin-3-gallate (EGCG) was administered daily by intraperitoneal injection, 1 week before the induction date of UC. Biopsies of the descending colon were collected on days 3, 10 and 17, and partly frozen for molecular studies or fixed for light microscopy. The status of intestinal tissue alterations and mast cells number were also assessed, as well as the mRNA expressions of IL-6, TNF-a and NF-kB, and determination of ROS expression. Histological data depicted a significant amelioration in the TNBS- and EGCG-treated rats compared to the non-treated animals. Catechin expressed strong anti-inflammatory and anti-oxidant effects, ameliorated ulcerative colitis and stabilized mast cells. The mechanism of action occurred basically through the NF-kB pathway and possibly through a crosstalk with other pathways.
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Affiliation(s)
- A Gerges Geagea
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
- Department of Internal Medicine, University of Palermo, Italy
| | - M Rizzo
- Department of Internal Medicine, University of Palermo, Italy
| | - A Eid
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - I Hajj Hussein
- Oakland University William Beaumont School of Medicine, Michigan USA
| | - Z Zgheib
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - M N Zeenny
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - R Jurjus
- Department of Anatomy and Regenerative Biology, George Washington University, Washington D.C., USA
| | - M L Uzzo
- BIONEC Biomedicine e Clinical Neurosciences Department Section of Histology, Embryology and Anatomy, School of Medicine and Surgery, Palermo, Italy
| | - G F Spatola
- BIONEC Biomedicine e Clinical Neurosciences Department Section of Histology, Embryology and Anatomy, School of Medicine and Surgery, Palermo, Italy
| | - G Bonaventura
- BIONEC Biomedicine e Clinical Neurosciences Department Section of Histology, Embryology and Anatomy, School of Medicine and Surgery, Palermo, Italy
| | - A Leone
- BIONEC Biomedicine e Clinical Neurosciences Department Section of Histology, Embryology and Anatomy, School of Medicine and Surgery, Palermo, Italy
| | - L Massaad-Massade
- Université Paris-Sud 11, Laboratoire de Vectorologie et Thérapeutiques Anticancéreuses, UMR 8203, Villejuif, France
- CNRS UMR 8203, Villejuif, Laboratoire de Vectorologie et Thérapeutiques Anticancéreuses, UMR 8203, France
- Gustave Roussy, Laboratoire de Vectorologie et Thérapeutiques Anticancéreuses, UMR 8203, Villejuif, France
| | - A Jurjus
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
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Boudissa M, Eid A, Bourgeois E, Griffet J, Courvoisier A. Early outcomes of spinal growth tethering for idiopathic scoliosis with a novel device: a prospective study with 2 years of follow-up. Childs Nerv Syst 2017; 33:813-818. [PMID: 28324184 DOI: 10.1007/s00381-017-3367-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 02/22/2017] [Indexed: 11/26/2022]
Abstract
QUESTIONS/PURPOSES Adolescent idiopathic scoliosis is a 3D spine deformity that worsens during the whole growth. New methods for spinal growth modulation with flexible spinal implants have been described to avoid progression of the deformity during growth spurt. The main limitations are that no specific ancillaries and devices are available, which makes the surgery technically demanding. METHODS We have developed a new method of spinal growth tethering using minimal invasive videothoracoscopic approach. Fixation is performed with staples and synthetic ligament on the lateral aspect of vertebral bodies on main curvature convexity. Patients with progressive thoracic idiopathic scoliosis despite the brace treatment were included. The clinical and radiological examinations were compared before and 2 years after surgery. RESULTS Six patients with flexible thoracic curves with a mean age 11.2 ± 1.2 years and a mean Cobb angle 45° ± 10° (35-60) were operated. All were skeletally immature. At last follow-up, the Cobb angle was stable. None of the patient underwent fusion. CONCLUSIONS The procedure allowed a stabilization of the deformity during growth spurt. Validated devices and further studies with longer term follow-up are needed to confirm the efficiency of this technique. This small cohort of patients is a source of reflection for further medical devices developments. LEVEL OF EVIDENCE Level 4 case series comparing to not randomized studies.
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Affiliation(s)
- M Boudissa
- Orthopedic Pediatric Surgery Department, Grenoble Alpes University Hospital, BP 217, 38043, Grenoble, France.
- Orthopedic and Traumatology Surgery Department, Grenoble Alpes University Hospital, BP 217, 38043, Grenoble, France.
| | - A Eid
- Orthopedic Pediatric Surgery Department, Grenoble Alpes University Hospital, BP 217, 38043, Grenoble, France
| | - E Bourgeois
- Orthopedic Pediatric Surgery Department, Grenoble Alpes University Hospital, BP 217, 38043, Grenoble, France
| | - J Griffet
- Orthopedic Pediatric Surgery Department, Grenoble Alpes University Hospital, BP 217, 38043, Grenoble, France
| | - A Courvoisier
- Orthopedic Pediatric Surgery Department, Grenoble Alpes University Hospital, BP 217, 38043, Grenoble, France
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Brahim L, Eid A, Marquès da Silva B, Courvoisier A. [Atypical osteochondroma in a 5-year-old child]. Arch Pediatr 2017; 24:568-570. [PMID: 28416431 DOI: 10.1016/j.arcped.2017.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 01/13/2017] [Accepted: 03/16/2017] [Indexed: 11/25/2022]
Affiliation(s)
- L Brahim
- Service d'orthopédie pédiatrique, université Grenoble-Alpes, centre hospitalo-universitaire, BP 217, 38043 Grenoble cedex 09, France
| | - A Eid
- Service d'orthopédie pédiatrique, université Grenoble-Alpes, centre hospitalo-universitaire, BP 217, 38043 Grenoble cedex 09, France
| | - B Marquès da Silva
- Service d'orthopédie pédiatrique, université Grenoble-Alpes, centre hospitalo-universitaire, BP 217, 38043 Grenoble cedex 09, France
| | - A Courvoisier
- Service d'orthopédie pédiatrique, université Grenoble-Alpes, centre hospitalo-universitaire, BP 217, 38043 Grenoble cedex 09, France.
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Lateur G, Grobost P, Gerbelot J, Eid A, Griffet J, Courvoisier A. Efficacy of nighttime brace in preventing progression of idiopathic scoliosis of less than 25°. Orthop Traumatol Surg Res 2017; 103:275-278. [PMID: 28025152 DOI: 10.1016/j.otsr.2016.10.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Revised: 09/09/2016] [Accepted: 10/07/2016] [Indexed: 02/02/2023]
Abstract
INTRODUCTION The objective of the present study was to assess, at skeletal maturity, the efficacy of non-operative treatment by isolated nighttime brace in the prevention of progression of progressive idiopathic scoliosis of less than 25°. HYPOTHESIS Isolated nighttime brace treatment is effective in the prevention of progression of mild progressive idiopathic scoliosis (Cobb<25°). MATERIAL AND METHODS A single-center retrospective study included 142 patients managed by nighttime brace for progressive idiopathic scoliosis with Cobb angle<25°, with assessment at skeletal maturity. Mean Cobb angle at start of treatment was 15.5° (range, 10-25°). Mean values for Cobb angle and sagittal parameters before treatment and at skeletal maturity were compared on Student t-test. Change in Cobb angle over time was also analyzed. RESULTS Mean Cobb angle at skeletal maturity was 16.3°, showing significant increase over baseline (15.5°; P=0.04), although the difference was less than the uncertainty of measurement (±6°). In baseline Risser 0 or 1, mean change in Cobb angle at skeletal maturity (16.2°) was not significant (P=0.1). Cobb angle diminished in 26 cases (18%), increased in 24 (17%) and was unchanged in 92 (65%). CONCLUSION The present study confirmed the efficacy of non-operative treatment by nighttime brace in mild progressive idiopathic scoliosis (<25°) in a large majority of cases. A nighttime brace thus seems to be an effective option for the treatment of adolescent scoliosis, ensuring a safe curve of around 20°. LEVEL OF EVIDENCE Level IV, retrospective study.
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Affiliation(s)
- G Lateur
- Service de chirurgie orthopédique pédiatrique, CHU Grenoble-Alpes, BP 217, 38043 Grenoble cedex 9, France
| | - P Grobost
- Service de chirurgie orthopédique pédiatrique, CHU Grenoble-Alpes, BP 217, 38043 Grenoble cedex 9, France
| | - J Gerbelot
- Demeure Orthopédie, 1, rue Rosa-Lee-Parks, 38400 Saint-Martin d'Hères, France
| | - A Eid
- Service de chirurgie orthopédique pédiatrique, CHU Grenoble-Alpes, BP 217, 38043 Grenoble cedex 9, France
| | - J Griffet
- Service de chirurgie orthopédique pédiatrique, CHU Grenoble-Alpes, BP 217, 38043 Grenoble cedex 9, France
| | - A Courvoisier
- Service de chirurgie orthopédique pédiatrique, CHU Grenoble-Alpes, BP 217, 38043 Grenoble cedex 9, France.
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Courvoisier A, Calvelli N, Bourgeois E, Eid A, Griffet J. [Pitfalls in the diagnosis of occult elbow fractures in children]. Arch Pediatr 2016; 23:869-74. [PMID: 27345552 DOI: 10.1016/j.arcped.2016.05.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 05/09/2016] [Accepted: 05/25/2016] [Indexed: 11/29/2022]
Abstract
Elbow injuries are frequent but occult fractures are difficult to diagnose on x-rays. However, any delay in the diagnosis may severely impair the prognosis of some fractures. Simple tips may help the clinician read x-rays properly and avoid the classical pitfalls of elbow injuries in children. The chronology of appearance of ossification nuclei around the elbow is important to distinguish normal features from abnormality. Drawing simple geometric constructions on the x-rays may clarify most occult elbow fractures in children.
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Affiliation(s)
- A Courvoisier
- Département d'orthopédie pédiatrique, laboratoire TIMC-IMAG-SPM, CHU de Grenoble, université Grenoble Alpes, BP 217, 38043 Grenoble cedex 09, France.
| | - N Calvelli
- Département d'orthopédie pédiatrique, laboratoire TIMC-IMAG-SPM, CHU de Grenoble, université Grenoble Alpes, BP 217, 38043 Grenoble cedex 09, France
| | - E Bourgeois
- Département d'orthopédie pédiatrique, laboratoire TIMC-IMAG-SPM, CHU de Grenoble, université Grenoble Alpes, BP 217, 38043 Grenoble cedex 09, France
| | - A Eid
- Département d'orthopédie pédiatrique, laboratoire TIMC-IMAG-SPM, CHU de Grenoble, université Grenoble Alpes, BP 217, 38043 Grenoble cedex 09, France
| | - J Griffet
- Département d'orthopédie pédiatrique, laboratoire TIMC-IMAG-SPM, CHU de Grenoble, université Grenoble Alpes, BP 217, 38043 Grenoble cedex 09, France
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Abdelwhab EM, Hassan MK, Abdel-Moneim AS, Naguib MM, Mostafa A, Hussein ITM, Arafa A, Erfan AM, Kilany WH, Agour MG, El-Kanawati Z, Hussein HA, Selim AA, Kholousy S, El-Naggar H, El-Zoghby EF, Samy A, Iqbal M, Eid A, Ibraheem EM, Pleschka S, Veits J, Nasef SA, Beer M, Mettenleiter TC, Grund C, Ali MM, Harder TC, Hafez HM. Introduction and enzootic of A/H5N1 in Egypt: Virus evolution, pathogenicity and vaccine efficacy ten years on. Infect Genet Evol 2016; 40:80-90. [PMID: 26917362 DOI: 10.1016/j.meegid.2016.02.023] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 02/18/2016] [Accepted: 02/19/2016] [Indexed: 12/09/2022]
Abstract
It is almost a decade since the highly pathogenic H5N1 avian influenza virus (A/H5N1) of clade 2.2.1 was introduced to Egypt in 2005, most likely, via wild birds; marking the longest endemic status of influenza viruses in poultry outside Asia. The endemic A/H5N1 in Egypt still compromises the poultry industry, poses serious hazards to public health and threatens to become potentially pandemic. The control strategies adopted for A/H5N1 in Egyptian poultry using diverse vaccines in commercialized poultry neither eliminated the virus nor did they decrease its evolutionary rate. Several virus clades have evolved, a few of them disappeared and others prevailed. Disparate evolutionary traits in both birds and humans were manifested by accumulation of clade-specific mutations across viral genomes driven by a variety of selection pressures. Viruses in vaccinated poultry populations displayed higher mutation rates at the immunogenic epitopes, promoting viral escape and reducing vaccine efficiency. On the other hand, viruses isolated from humans displayed changes in the receptor binding domain, which increased the viral affinity to bind to human-type glycan receptors. Moreover, viral pathogenicity exhibited several patterns in different hosts. This review aims to provide an overview of the viral evolution, pathogenicity and vaccine efficacy of A/H5N1 in Egypt during the last ten years.
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Affiliation(s)
- E M Abdelwhab
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, D-17493 Greifswald-Insel Riems, Germany; National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt
| | - M K Hassan
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt
| | - A S Abdel-Moneim
- Virology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt; Microbiology Department, Virology Division, College of Medicine, Taif University, Al-Taif 21944, Saudi Arabia
| | - M M Naguib
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, D-17493 Greifswald-Insel Riems, Germany; National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt
| | - A Mostafa
- Center of Scientific Excellence for Influenza Viruses, National Research Centre (NRC), Dokki, Giza 12311, Egypt; Institute of Medical Virology, Justus Liebig University Giessen, Schubertstrasse 81, Giessen 35392, Germany
| | - I T M Hussein
- Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - A Arafa
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt
| | - A M Erfan
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt
| | - W H Kilany
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt
| | - M G Agour
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt; Animal Health Research Institute, Dokki, 12618 Giza, Egypt
| | - Z El-Kanawati
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt
| | - H A Hussein
- Department of Virology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - A A Selim
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt
| | - S Kholousy
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt
| | - H El-Naggar
- Veterinary Serum and Vaccine Research Institute, Abbasia, El-Sekka El-Beida St., PO Box 131, Cairo 11381, Egypt
| | - E F El-Zoghby
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt
| | - A Samy
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt
| | - M Iqbal
- Avian Influenza Group, The Pirbright Institute, Ash Road, Pirbright, Woking GU24 0NF, United Kingdom
| | - A Eid
- Department of Avian and Rabbit Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - E M Ibraheem
- Animal Health Research Institute, Dokki, 12618 Giza, Egypt
| | - S Pleschka
- Institute of Medical Virology, Justus Liebig University Giessen, Schubertstrasse 81, Giessen 35392, Germany
| | - J Veits
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, D-17493 Greifswald-Insel Riems, Germany
| | - S A Nasef
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt
| | - M Beer
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, D-17493 Greifswald-Insel Riems, Germany
| | - T C Mettenleiter
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, D-17493 Greifswald-Insel Riems, Germany
| | - C Grund
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, D-17493 Greifswald-Insel Riems, Germany
| | - M M Ali
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza 12618, Egypt; Animal Health Research Institute, Dokki, 12618 Giza, Egypt
| | - T C Harder
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, D-17493 Greifswald-Insel Riems, Germany
| | - H M Hafez
- Institute of Poultry Diseases, Freie Universität Berlin, Königsweg 63, 14163 Berlin, Germany.
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El Hasasna H, Saleh A, Al Samri H, Athamneh K, Attoub S, Arafat K, Benhalilou N, Alyan S, Viallet J, Al Dhaheri Y, Eid A, Iratni R. Rhus coriaria suppresses angiogenesis, metastasis and tumor growth of breast cancer through inhibition of STAT3, NFκB and nitric oxide pathways. Sci Rep 2016; 6:21144. [PMID: 26888313 PMCID: PMC4758048 DOI: 10.1038/srep21144] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 01/18/2016] [Indexed: 12/31/2022] Open
Abstract
Recently, we reported that Rhus coriaria exhibits anticancer activities by promoting cell cycle arrest and autophagic cell death of the metastatic triple negative MDA-MB-231 breast cancer cells. Here, we investigated the effect of Rhus coriaria on the migration, invasion, metastasis and tumor growth of TNBC cells. Our current study revealed that non-cytotoxic concentrations of Rhus coriaria significantly inhibited migration and invasion, blocked adhesion to fibronectin and downregulated MMP-9 and prostaglandin E2 (PgE2). Not only did Rhus coriaria decrease their adhesion to HUVECs and to lung microvascular endothelial (HMVEC-L) cells, but it also inhibited the transendothelial migration of MDA-MB-231 cells through TNF-α-activated HUVECs. Furthermore, we found that Rhus coriaria inhibited angiogenesis, reduced VEGF production in both MDA-MB-231 and HUVECs and downregulated the inflammatory cytokines TNF-α, IL-6 and IL-8. The underlying mechanism for Rhus coriaria effects appears to be through inhibiting NFκB, STAT3 and nitric oxide (NO) pathways. Most importantly, by using chick embryo tumor growth assay, we showed that Rhus coriaria suppressed tumor growth and metastasis in vivo. The results described in the present study identify Rhus coriaria as a promising chemopreventive and therapeutic candidate that modulate triple negative breast cancer growth and metastasis.
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Affiliation(s)
- Hussain El Hasasna
- Department of Biology, College of Science, UAE University, United Arab Emirates University, Al-Ain, P.O. Box 15551, United Arab Emirates
| | - Alaaeldin Saleh
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box: 2713, Doha, Qatar
| | - Halima Al Samri
- Department of Biology, College of Science, UAE University, United Arab Emirates University, Al-Ain, P.O. Box 15551, United Arab Emirates
| | - Khawlah Athamneh
- Department of Biology, College of Science, UAE University, United Arab Emirates University, Al-Ain, P.O. Box 15551, United Arab Emirates
| | - Samir Attoub
- Department of Pharmacology &Therapeutics, College of Medicine &Health Sciences, United Arab Emirates University, Al-Ain, P.O. Box: 17666, United Arab Emirates
| | - Kholoud Arafat
- Department of Pharmacology &Therapeutics, College of Medicine &Health Sciences, United Arab Emirates University, Al-Ain, P.O. Box: 17666, United Arab Emirates
| | - Nehla Benhalilou
- Department of Biology, College of Science, UAE University, United Arab Emirates University, Al-Ain, P.O. Box 15551, United Arab Emirates
| | - Sofyan Alyan
- Department of Biology, College of Science, UAE University, United Arab Emirates University, Al-Ain, P.O. Box 15551, United Arab Emirates
| | - Jean Viallet
- INSERM U823, Université Joseph Fourier, BP170, 38042 Grenoble, France
| | - Yusra Al Dhaheri
- Department of Biology, College of Science, UAE University, United Arab Emirates University, Al-Ain, P.O. Box 15551, United Arab Emirates
| | - Ali Eid
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, PO Box 11-0236, Lebanon.,Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, PO Box: 2713, Doha, Qatar
| | - Rabah Iratni
- Department of Biology, College of Science, UAE University, United Arab Emirates University, Al-Ain, P.O. Box 15551, United Arab Emirates
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Bala M, Mizrahi I, Mazeh H, Yuval J, Eid A, Almogy G. Percutaneous cholecystostomy is safe and effective option for acute calculous cholecystitis in select group of high-risk patients. Eur J Trauma Emerg Surg 2015; 42:761-766. [PMID: 26612179 DOI: 10.1007/s00068-015-0601-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Accepted: 11/16/2015] [Indexed: 12/31/2022]
Abstract
PURPOSE In high-risk patients with acute calculous cholecystitis (ACC), percutaneous cholecystostomy (PC) can serve as a bridging option to cholecystectomy [laparoscopic cholecystectomy (LC)] or as definitive treatment. The purpose of this study was to identify predictors of the need for permanent PC. METHODS Data from 257 PCs performed for ACC (mean age 67.3 ± 14) was collected for a 10-year period. Demographic and clinical characteristics at initial admission, co-morbidities were analyzed. Patients who underwent interval LC were defined as the surgery group (SG; n = 163, 63.4 %) and the remaining patients as the non-SG (NSG; n = 94, 36.6 %). RESULTS Patients in the SG were significantly younger and had a shorter length of hospital stay (p < 0.01). The rate of coronary artery disease (CAD; 63.2 vs. 20.2 %), chronic renal failure (14.9 vs. 6.1 %), and the mean number of co-morbidities (2.2 vs. 1.4) were significantly higher in the NSG. Sepsis at admission was more common in the NSG (19.1 vs. 4.9 %, p < 0.001). 56 patients (34.4 %) in the SG and 24 patients (25.5 %) in the NSG developed tube-related complications. In hospital mortality was similar between the groups. Multivariate analysis showed that age ≥75, increased alkaline phosphatase (ALK-P), history of CAD, were predictors of PC as a definite treatment in this high-risk group of patients with ACC. CONCLUSIONS High operative risk due to older age and CAD preclude LC in more than one-third of patients following PC especially presenting with sepsis and elevated ALK-P. This study suggests that PC could be a safe treatment option in this select group of high-risk patients.
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Affiliation(s)
- M Bala
- Department of General Surgery, Hadassah-Hebrew University Medical Center, P.O.B. 12000, 91120, Jerusalem, Israel.
| | - I Mizrahi
- Department of General Surgery, Hadassah-Hebrew University Medical Center, P.O.B. 12000, 91120, Jerusalem, Israel
| | - H Mazeh
- Department of General Surgery, Hadassah-Hebrew University Medical Center, P.O.B. 12000, 91120, Jerusalem, Israel
| | - J Yuval
- Department of General Surgery, Hadassah-Hebrew University Medical Center, P.O.B. 12000, 91120, Jerusalem, Israel
| | - A Eid
- Department of General Surgery, Hadassah-Hebrew University Medical Center, P.O.B. 12000, 91120, Jerusalem, Israel
| | - G Almogy
- Department of General Surgery, Hadassah-Hebrew University Medical Center, P.O.B. 12000, 91120, Jerusalem, Israel
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Al Dhaheri Y, Attoub S, Ramadan G, Arafat K, Bajbouj K, Karuvantevida N, AbuQamar S, Eid A, Iratni R. Carnosol induces ROS-mediated beclin1-independent autophagy and apoptosis in triple negative breast cancer. PLoS One 2014; 9:e109630. [PMID: 25299698 PMCID: PMC4192122 DOI: 10.1371/journal.pone.0109630] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 09/06/2014] [Indexed: 01/11/2023] Open
Abstract
Background In this study we investigated the in vitro and in vivo anticancer effect of carnosol, a naturally occurring polyphenol, in triple negative breast cancer. Results We found that carnosol significantly inhibited the viability and colony growth induced G2 arrest in the triple negative MDA-MB-231. Blockade of the cell cycle was associated with increased p21/WAF1 expression and downregulation of p27. Interestingly, carnosol was found to induce beclin1-independent autophagy and apoptosis in MDA-MB-231 cells. The coexistence of both events, autophagy and apoptosis, was confirmed by electron micrography. Induction of autophagy was found to be an early event, detected within 3 h post-treatment, which subsequently led to apoptosis. Carnosol treatment also caused a dose-dependent increase in the levels of phosphorylated extracellular signal-regulated kinase 1 and 2 (pERK1/2). Moreover, we show that carnosol induced DNA damage, reduced the mitochondrial potential and triggered the activation of the intrinsic and extrinsic apoptotic pathway. Furthermore, we found that carnosol induced a dose-dependent generation of reactive oxygen species (ROS) and inhibition of ROS by tiron, a ROS scavenger, blocked the induction of autophagy and apoptosis and attenuated DNA damage. To our knowledge, this is the first report to identify the induction of autophagy by carnosol. Conclusion In conclusion our findings provide strong evidence that carnosol may be an alternative therapeutic candidate against the aggressive form of breast cancer and hence deserves more exploration.
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Affiliation(s)
- Yusra Al Dhaheri
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Samir Attoub
- Department of Pharmacology & Therapeutics, Faculty of Medicine & Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Gaber Ramadan
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Kholoud Arafat
- Department of Pharmacology & Therapeutics, Faculty of Medicine & Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Khuloud Bajbouj
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Noushad Karuvantevida
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Synan AbuQamar
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Ali Eid
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Rabah Iratni
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
- * E-mail:
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Ahmed A, Subaiea M, Eid A, Li L, Seeram P, Zawia H. Pomegranate Extract Modulates Processing of Amyloid-β Precursor Proteinin an Aged Alzheimer’s Disease Animal Model. Curr Alzheimer Res 2014. [DOI: 10.2174/1567205011666141001115348] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Waller S, Raglow Z, Lemons S, Johnson P, Eid A, Schmitt T, Smothers J, O'Neil M, Gilroy R. Microwave ablation of a large renal aspergilloma. Transpl Infect Dis 2014; 16:496-500. [DOI: 10.1111/tid.12221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 12/19/2013] [Accepted: 01/08/2014] [Indexed: 11/28/2022]
Affiliation(s)
- S. Waller
- Division of Infectious Diseases; The University of Kansas Medical Center; Kansas City Kansas USA
| | - Z. Raglow
- Center for Transplantation; The University of Kansas Medical Center; Kansas City Kansas USA
| | - S. Lemons
- Department of Radiology; The University of Kansas Medical Center; Kansas City Kansas USA
| | - P. Johnson
- Department of Radiology; The University of Kansas Medical Center; Kansas City Kansas USA
| | - A. Eid
- Division of Infectious Diseases; The University of Kansas Medical Center; Kansas City Kansas USA
| | - T. Schmitt
- Center for Transplantation; The University of Kansas Medical Center; Kansas City Kansas USA
| | - J. Smothers
- Center for Transplantation; The University of Kansas Medical Center; Kansas City Kansas USA
| | - M. O'Neil
- Department of Pathology; The University of Kansas Medical Center; Kansas City Kansas USA
| | - R. Gilroy
- Center for Transplantation; The University of Kansas Medical Center; Kansas City Kansas USA
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Hajj Hussein I, Eid A, Maksoud R, Jambart S, Bou Assi T, Zgheib Z, Oueidat D, Chams N, Chams S, Diab R, Barada K, Jurjus R, Cappello F, Reimund J, Kreiker J, Leone A, Jurjus A. Estrogens control inflammation in experimental colitis. J BIOL REG HOMEOS AG 2014; 28:213-224. [PMID: 25001654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
There is now a wealth of experimental evidence indicating that the deficit in endogenous estrogen facilitates the onset of inflammation that can be antagonized by estrogen replacement therapy. This work investigated the role of estrogen in the control of intestinal inflammation in a panel of colitis models, focusing on the morphological changes, the activity of mast cells, the expression of cytokines (IL-1beta, IL-6, and TNF-alpha), fibronectin and reactive oxygen species. Two hundred adult male rats were divided into 4 groups: colitis was induced in Group I and Group II but only the latter was treated with estrogen; Group III received estrogen only, and Group IV saline. Colitis was induced in 4 models using: iodoacetamide; iodoacetamide + enteropathogenic E. coli; 2, 4, 6-Trinitrobenzene sulfonic acid; and dextran sulfate sodium salt. Macroscopic and microscopic evaluations of abdominal structures as well as molecular analysis were made on days 7, 14, 28 and 56. There was a significant improvement in the health condition of the estrogen-treated rats: the inflammation scores were reduced by at least 10-15%, the number of mast cells in the colon decreased by 30%, fibronectin expression was only 50% and reactive oxygen species decreased by 30%. In addition, there was a significant decrease in TNF-alpha, IL-6 and IL-1beta expression by about 25%. In conclusion, there was an improvement in the inflammatory status in all estrogen-treated groups through the duration of the experiment at all-time points. In addition, there was less tissue necrosis as depicted by less fibronectin and a marked antioxidant effect.
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Affiliation(s)
- I Hajj Hussein
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - A Eid
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - R Maksoud
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - S Jambart
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - T Bou Assi
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Z Zgheib
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - D Oueidat
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - N Chams
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - S Chams
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - R Diab
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - K Barada
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - R Jurjus
- George Washington University, Washington D.C., USA
| | | | | | - J Kreiker
- Lebanese University, Beirut, Lebanon
| | - A Leone
- University of Palermo, Italy
| | - A Jurjus
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
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Tonetti J, van Overschelde J, Sadok B, Vouaillat H, Eid A. Percutaneous ilio-sacral screw insertion. fluoroscopic techniques. Orthop Traumatol Surg Res 2013; 99:965-72. [PMID: 24238905 DOI: 10.1016/j.otsr.2013.08.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/18/2013] [Indexed: 02/02/2023]
Affiliation(s)
- J Tonetti
- Service Orthopédie-Traumatologie, BP 217, 38043 Grenoble cedex 09, France.
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Ajani JA, Xiao L, Roth JA, Hofstetter WL, Walsh G, Komaki R, Liao Z, Rice DC, Vaporciyan AA, Maru DM, Lee JH, Bhutani MS, Eid A, Yao JC, Phan AP, Halpin A, Suzuki A, Taketa T, Thall PF, Swisher SG. A phase II randomized trial of induction chemotherapy versus no induction chemotherapy followed by preoperative chemoradiation in patients with esophageal cancer. Ann Oncol 2013; 24:2844-9. [PMID: 23975663 DOI: 10.1093/annonc/mdt339] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The contribution of induction chemotherapy (IC) before preoperative chemoradiation for esophageal cancer (EC) is not known. We hypothesized that IC would increase the rate of pathologic complete response (pathCR). METHODS Trimodality-eligibile patients were randomized to receive no IC (Arm A) or IC (oxaliplatin/FU; Arm B) before oxaliplatin/FU/radiation. Surgery was attempted ∼5-6 weeks after chemoradiation. The pathCR rate, post-surgery 30-day mortality, overall survival (OS), and toxic effects were assessed. Bayesian methods and Fisher's exact test were used. RESULTS One hundred twenty-six patients were randomized dynamically to balance the two arms for histology, baseline stage, gender, race, and age. Fifty-five patients in Arm A and 54 in Arm B underwent surgery. The median actuarial OS for all patients (54 deaths) was 45.62 months [95% confidence interval (CI), 27.63-NA], with median OS 45.62 months (95% CI 25.56-NA) in Arm A and 43.68 months (95% CI 27.63-NA) in Arm B (P = 0.69). The pathCR rate in Arm A was 13% (7 of 55) and 26% (14 of 54) in Arm B (two-sided Fisher's exact test, P = 0.094). Safety was similar in both arms. CONCLUSIONS These data suggest that IC produces non-significant increase in the pathCR rate and does not prolong OS. Further development of IC before chemoradiation may not be beneficial. Clinical trial no.: NCT 00525915 (www.clinicaltrials.gov).
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Affiliation(s)
- J A Ajani
- Departments of Gastrointestinal Medical Oncology
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Al Dhaheri Y, Attoub S, Arafat K, AbuQamar S, Viallet J, Saleh A, Al Agha H, Eid A, Iratni R. Anti-metastatic and anti-tumor growth effects of Origanum majorana on highly metastatic human breast cancer cells: inhibition of NFκB signaling and reduction of nitric oxide production. PLoS One 2013; 8:e68808. [PMID: 23874773 PMCID: PMC3707896 DOI: 10.1371/journal.pone.0068808] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 06/01/2013] [Indexed: 01/22/2023] Open
Abstract
Background We have recently reported that Origanummajorana exhibits anticancer activity by promoting cell cycle arrest and apoptosis of the metastatic MDA-MB-231 breast cancer cell line. Here, we extended our study by investigating the effect of O. majorana on the migration, invasion and tumor growth of these cells. Results We demonstrate that non-cytotoxic concentrations of O. majorana significantly inhibited the migration and invasion of the MDA-MB-231 cells as shown by wound-healing and matrigel invasion assays. We also show that O. majorana induce homotypic aggregation of MDA-MB-231 associated with an upregulation of E-cadherin protein and promoter activity. Furthermore, we show that O. majorana decrease the adhesion of MDA-MB-231 to HUVECs and inhibits transendothelial migration of MDA-MB-231 through TNF-α-activated HUVECs. Gelatin zymography assay shows that O. majorana suppresses the activities of matrix metalloproteinase-2 and -9 (MMP-2 and MMP-9). ELISA, RT-PCR and Western blot results revealed that O. majorana decreases the expression of MMP-2, MMP-9, urokinase plasminogen activator receptor (uPAR), ICAM-1 and VEGF. Further investigation revealed that O. majorana suppresses the phosphorylation of IκB, downregulates the nuclear level of NFκB and reduces Nitric Oxide (NO) production in MDA-MB-231 cells. Most importantly, by using chick embryo tumor growth assay, we also show that O. majorana promotes inhibition of tumor growth and metastasis in vivo. Conclusion Our findings identify Origanummajorana as a promising chemopreventive and therapeutic candidate that modulate breast cancer growth and metastasis.
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Affiliation(s)
- Yusra Al Dhaheri
- Department of Biology, College of Science, United Arab Emirates University, Alabama, Ain, United Arab Emirates
| | - Samir Attoub
- Department of Pharmacology and Therapeutics, Faculty of Medicine and Health Sciences, United Arab Emirates University, Alabama, Ain, United Arab Emirates
| | - Kholoud Arafat
- Department of Pharmacology and Therapeutics, Faculty of Medicine and Health Sciences, United Arab Emirates University, Alabama, Ain, United Arab Emirates
| | - Synan AbuQamar
- Department of Biology, College of Science, United Arab Emirates University, Alabama, Ain, United Arab Emirates
| | - Jean Viallet
- Institut National de la Sante et de la recherche Medicale U823, Université Joseph Fourier, Grenoble, France
| | - Alaaeldin Saleh
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Hala Al Agha
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Ali Eid
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
- * E-mail: (RI); (AE)
| | - Rabah Iratni
- Department of Biology, College of Science, United Arab Emirates University, Alabama, Ain, United Arab Emirates
- * E-mail: (RI); (AE)
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Rabattu PY, Courvoisier A, Bourgeois E, Eid A, Durand C, Griffet J. Spica cast as an alternative to general anesthesia for lower limb MRI in young children. J Orthop Traumatol 2013; 15:55-8. [PMID: 23797389 PMCID: PMC3948507 DOI: 10.1007/s10195-013-0251-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Accepted: 06/04/2013] [Indexed: 11/09/2022] Open
Abstract
Background The conventional approach for MRI procedures in very young children is to use general anesthesia which comes with inherent risks. Non-pharmacological strategies to reduce anxiety in children have also been described, but they all require patient cooperation. The purpose of the study was to evaluate the ability to complete diagnosis using temporary spica cast immobilization (TSCI) in children less than 3 years old undergoing MRI procedures for lower limb disorders. Materials and methods A retrospective review identified 14 children under 3 years old that had required an MRI for a lower limb disorder, using TSCI. The MRI procedure was performed for evaluation of hip dysplasia, bone infections, limping, evaluation of soft tissue tumor and femoral head osteonecrosis. A spica cast was fitted by the pediatric orthopedic team. The MRI procedure was subsequently performed. Results Diagnosis was achieved in all cases. The radiologist identified movement artifacts (14 %) that did not impair the image quality enough to prevent interpretation. Conclusion TSCI is a safe, effective and costless procedure avoiding general anesthesia for young patients under 3 years old who require MRI for pelvis or lower limb disorders. Level of evidence IV.
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Nassif J, Mattar S, Abu Musa A, Eid A. Endometriosis and cancer: what do we know? Minerva Ginecol 2013; 65:167-179. [PMID: 23598782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Endometriosis is the presence of endometriotic tissue outside of the uterus, composed of endometriotic glands and stroma. It affects between 10% to 12% of women in reproductive age. It presents with dysmenorrhea, dyspareunia, chronic pelvic pain, infertility, urinary or digestive symptoms. Diagnosis is based on clinical suspicion, clinical exam, pelvic ultrasound or pelvic magnetic resonance, and confirmed by laparoscopy with pathology studies. Its management is better understood nowadays. However, its association with neoplasia has been questioned for many years. It probably plays a role in the etiology of gynecological cancers, mainly ovarian neoplasia. In our review, we separately compared endometriosis and endometrioma to cancer, in terms of mutual causality, common risk factors, distinction based on histological findings, in addition to molecular and genetic pathways behind this association. This article reviews the English literature for studies on the association between endometriosis and gynecological cancers. Additional reports were collected by systematically reviewing all references from retrieved papers.
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Affiliation(s)
- J Nassif
- Obstetrics and Gynecology Department, American University of Beirut Medical Center, Beirut, Lebanon.
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Al Dhaheri Y, Attoub S, Arafat K, AbuQamar S, Eid A, Al Faresi N, Iratni R. Salinomycin induces apoptosis and senescence in breast cancer: Upregulation of p21, downregulation of survivin and histone H3 and H4 hyperacetylation. Biochim Biophys Acta Gen Subj 2013; 1830:3121-35. [DOI: 10.1016/j.bbagen.2013.01.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Revised: 01/07/2013] [Accepted: 01/13/2013] [Indexed: 01/22/2023]
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Al Dhaheri Y, Eid A, AbuQamar S, Attoub S, Khasawneh M, Aiche G, Hisaindee S, Iratni R. Mitotic arrest and apoptosis in breast cancer cells induced by Origanum majorana extract: upregulation of TNF-α and downregulation of survivin and mutant p53. PLoS One 2013; 8:e56649. [PMID: 23451065 PMCID: PMC3579842 DOI: 10.1371/journal.pone.0056649] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 01/11/2013] [Indexed: 12/22/2022] Open
Abstract
Background In the present study, we investigated the effect of Origanum majorana ethanolic extract on the survival of the highly proliferative and invasive triple-negative p53 mutant breast cancer cell line MDA-MB-231. Results We found that O. majorana extract (OME) was able to inhibit the viability of the MDA-MB-231 cells in a time- and concentration-dependent manner. The effect of OME on cellular viability was further confirmed by the inhibition of colony growth. We showed, depending on the concentration used, that OME elicited different effects on the MDA-MB 231 cells. Concentrations of 150 and 300 µg/mL induced an accumulation of apoptotic–resistant population of cells arrested in mitotis and overexpressing the cyclin-dependent kinase inhibitor, p21 and the inhibitor of apoptosis, survivin. On the other hand, higher concentrations of OME (450 and 600 µg/mL) triggered a massive apoptosis through the extrinsic pathway, including the activation of tumor necrosis factor-α (TNF-α), caspase 8, caspase 3, and cleavage of PARP, downregulation of survivin as well as depletion of the mutant p53 in MDA-MB-231 cells. Furthermore, OME induced an upregulation of γ-H2AX, a marker of double strand DNA breaks and an overall histone H3 and H4 hyperacetylation. Conclusion Our findings provide strong evidence that O. majorana may be a promising chemopreventive and therapeutic candidate against cancer especially for highly invasive triple negative p53 mutant breast cancer; thus validating its complementary and alternative medicinal use.
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Affiliation(s)
- Yusra Al Dhaheri
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Ali Eid
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Synan AbuQamar
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Samir Attoub
- Department of Pharmacology & Therapeutics, Faculty of Medicine & Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Mohammad Khasawneh
- Department of Chemistry, College of Science, UAE University, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Ghenima Aiche
- Département de Biochimie et Microbiologie, Faculté des sciences biologiques et agronomiques, Université Mouloud Mammeri, Tizi-Ouzou, Algeria
| | - Soleiman Hisaindee
- Department of Chemistry, College of Science, UAE University, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Rabah Iratni
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
- * E-mail:
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Nayak BK, Feliers D, Sudarshan S, Friedrichs WE, Day RT, New DD, Fitzgerald JP, Eid A, Denapoli T, Parekh DJ, Gorin Y, Block K. Stabilization of HIF-2α through redox regulation of mTORC2 activation and initiation of mRNA translation. Oncogene 2012; 32:3147-55. [PMID: 22869144 PMCID: PMC3696051 DOI: 10.1038/onc.2012.333] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
HIF-2alpha plays a critical role in renal tumorigenesis. HIF-2alpha is stabilized in Von Hippel-Lindau (VHL)-deficient renal cell carcinoma through mechanisms that require ongoing mRNA translation. Mammalian target of Rapamycin (mTOR) functions in two distinct complexes, Raptor-associated mTORC1 and Rictor-associated mTORC2. Rictor-associated mTORC2 complex has been linked to maintaining HIF-2alpha protein in the absence of VHL, however the mechanisms remain to be elucidated. Although Raptor-associated mTORC1 is a known key upstream regulator of mRNA translation, initiation and elongation, the role of mTORC2 in regulating mRNA translation, is not clear. Complex assembly of the mRNA cap protein, eIF4E, with activators (eIF4G) and inhibitors (4E-BP1) are rate-limiting determinants of mRNA translation. Our laboratory has previously demonstrated that reactive oxygen species, mediated by p22phox-based Nox oxidases, are enhanced in VHL-deficient cells and play a role in the activation of Akt on S473, a site phosphorylated by the mTORC2 complex. In this study, we examined the role of Rictor-dependent regulation of HIF-2alpha through eIF4E-dependent mRNA translation and examined the effects of p22phox-based Nox oxidases on TORC2 regulation. We demonstrate for the first time that mTORC2 complex stability and activation is redox sensitive and further defined a novel role for p22phox-based Nox oxidases in eIF4E-dependent mRNA translation through mTORC2. Furthermore, we provide the first evidence that silencing of p22phox reduces HIF-2alpha-dependent gene targeting in vitro and tumor formation in vivo. The clinical relevance of these studies is demonstrated.
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Affiliation(s)
- B K Nayak
- Department of Medicine, University of Texas Health Science Center, San Antonio, TX, USA
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Eid A. 316 Cyclic AMP Inhibits the Malignant Phenotype of Human Colon Cancer Cells Via an Epac-dependent Mechanism. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71008-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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