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Harby SA, Khalil NA, El-Sayed NS, Thabet EH, Saleh SR, Fathelbab MH. Implications of BCRP modulation on PTZ-induced seizures in mice: Role of ko143 and metformin as adjuvants to lamotrigine. Naunyn Schmiedebergs Arch Pharmacol 2023; 396:2627-2636. [PMID: 37067582 PMCID: PMC10497685 DOI: 10.1007/s00210-023-02485-7] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 03/31/2023] [Indexed: 04/18/2023]
Abstract
Blood-brain barrier (BBB) efflux transporters' overexpression hinders antiepileptic drug brain entry. Breast cancer resistance protein (BCRP) is a major BBB efflux transporter. In the present work, BCRP's role as a mechanism that might contribute to drug-resistant epilepsy (DRE) in a mouse model of acute seizures was studied with further assessment of the effect of its inhibition by ko143 and metformin (MET) on lamotrigine (LTG) bioavailability and efficacy. 42 male mice divided into 6 groups: G1: Normal control, G2: LTG-injected healthy mice: LTG 20 mg/kg i.p., G3: Acute seizures (A.S) mice: Pentylenetetrazole (PTZ) 50 mg/kg i.p., G4: LTG-treated A.S mice: LTG 20 mg/kg + PTZ 50 mg/kg i.p., G5: Ko143 + LTG treated A.S mice: Ko143 15 mg/kg i.p. before LTG + PTZ, G6: MET + LTG treated A.S mice: MET 200 mg/kg i.p. before LTG + PTZ. Seizures severity, serum, brain LTG, and brain BCRP were assessed. PTZ group experienced the highest seizure frequency and brain BCRP expression. Ko143 and MET groups showed a significant decrease in brain BCRP with subsequent improvement in brain LTG level and better seizure control. BCRP has a significant role in epilepsy resistance and its inhibition with ko143 or MET adds value to DRE management.
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Affiliation(s)
- Sahar A Harby
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt.
| | - Nehal A Khalil
- Department of Medical Biochemistry, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Norhan S El-Sayed
- Department of Medical Physiology, Faculty of Medicine, University of Alexandria, Alexandria, Egypt
| | - Eman H Thabet
- Department of Medical Physiology, Faculty of Medicine, University of Alexandria, Alexandria, Egypt
- Center of Excellence for Research in Regenerative Medicine and Its Application (CERRMA), Faculty of Medicine, University of Alexandria, Alexandria, Egypt
| | - Samar R Saleh
- Department of Biochemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
- Bioscreening and Preclinical Trial Lab, Department of Biochemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Mona Hassan Fathelbab
- Department of Medical Biochemistry, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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2
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Radwan SES, El-Moslemany RM, Mehanna RA, Thabet EH, Abdelfattah EZA, El-Kamel A. Chitosan-coated bovine serum albumin nanoparticles for topical tetrandrine delivery in glaucoma: in vitro and in vivo assessment. Drug Deliv 2022; 29:1150-1163. [PMID: 35384774 PMCID: PMC9004496 DOI: 10.1080/10717544.2022.2058648] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [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] [Indexed: 02/08/2023] Open
Abstract
Glaucoma is one of the leading causes of blindness. Therapies available suffer from several drawbacks including low bioavailability, repeated administration and poor patient compliance with adverse effects thereafter. In this study, bovine serum albumin nanoparticles (BSA-NPs) coated with chitosan(CS) were developed for the topical delivery of tetrandrine (TET) for glaucoma management. Optimized nanoparticles were prepared by desolvation. pH, BSA, CS and cross-linking agent concentrations effects on BSA-NPs colloidal properties were investigated. CS-BSA-NPs with particle size 237.9 nm and zeta potential 24 mV was selected for further evaluation. EE% exceeded 95% with sustained release profile. In vitro mucoadhesion was evaluated based on changes in viscosity and zeta potential upon incubation with mucin. Ex vivo transcorneal permeation was significantly enhanced for CS coated formulation. In vitro cell culture studies on corneal stromal fibroblasts revealed NPs biocompatibility with enhanced cellular uptake and improved antioxidant and anti-proliferative properties for the CS-coated formulation. Moreover, BSA-NPs were nonirritant as shown by HET-CAM test. Also, bioavailability in rabbit aqueous humor showed 2-fold increase for CS-TET-BSA-NPs compared to TET with a sustained reduction in intraocular pressure in a rabbit glaucoma model. Overall, results suggest CS-BSA-NPs as a promising platform for topical ocular TET delivery in the management of glaucoma.
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Affiliation(s)
- Salma El-Sayed Radwan
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Riham M El-Moslemany
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Radwa A Mehanna
- Department of Medical Physiology, Faculty of Medicine, Alexandria University, Alexandria, Egypt.,Center of Excellence for Research in Regenerative Medicine and Applications (CERRMA), Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Eman H Thabet
- Department of Medical Physiology, Faculty of Medicine, Alexandria University, Alexandria, Egypt.,Center of Excellence for Research in Regenerative Medicine and Applications (CERRMA), Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | | | - Amal El-Kamel
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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3
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Mehanna RA, Essawy MM, Barkat MA, Awaad AK, Thabet EH, Hamed HA, Elkafrawy H, Khalil NA, Sallam A, Kholief MA, Ibrahim SS, Mourad GM. Cardiac stem cells: Current knowledge and future prospects. World J Stem Cells 2022; 14:1-40. [PMID: 35126826 PMCID: PMC8788183 DOI: 10.4252/wjsc.v14.i1.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 07/02/2021] [Accepted: 01/06/2022] [Indexed: 02/06/2023] Open
Abstract
Regenerative medicine is the field concerned with the repair and restoration of the integrity of damaged human tissues as well as whole organs. Since the inception of the field several decades ago, regenerative medicine therapies, namely stem cells, have received significant attention in preclinical studies and clinical trials. Apart from their known potential for differentiation into the various body cells, stem cells enhance the organ's intrinsic regenerative capacity by altering its environment, whether by exogenous injection or introducing their products that modulate endogenous stem cell function and fate for the sake of regeneration. Recently, research in cardiology has highlighted the evidence for the existence of cardiac stem and progenitor cells (CSCs/CPCs). The global burden of cardiovascular diseases’ morbidity and mortality has demanded an in-depth understanding of the biology of CSCs/CPCs aiming at improving the outcome for an innovative therapeutic strategy. This review will discuss the nature of each of the CSCs/CPCs, their environment, their interplay with other cells, and their metabolism. In addition, important issues are tackled concerning the potency of CSCs/CPCs in relation to their secretome for mediating the ability to influence other cells. Moreover, the review will throw the light on the clinical trials and the preclinical studies using CSCs/CPCs and combined therapy for cardiac regeneration. Finally, the novel role of nanotechnology in cardiac regeneration will be explored.
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Affiliation(s)
- Radwa A Mehanna
- Medical Physiology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Marwa M Essawy
- Oral Pathology Department, Faculty of Dentistry/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Mona A Barkat
- Human Anatomy and Embryology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Ashraf K Awaad
- Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Eman H Thabet
- Medical Physiology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Heba A Hamed
- Histology and Cell Biology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Hagar Elkafrawy
- Medical Biochemistry Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Nehal A Khalil
- Medical Biochemistry Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Abeer Sallam
- Medical Physiology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Marwa A Kholief
- Forensic Medicine and Clinical toxicology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Samar S Ibrahim
- Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Ghada M Mourad
- Histology and Cell Biology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
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Mehanna RA, Essawy MM, Barkat MA, Awaad AK, Thabet EH, Hamed HA, Elkafrawy H, Khalil NA, Sallam A, Kholief MA, Ibrahim SS, Mourad GM. Cardiac stem cells: Current knowledge and future prospects. World J Stem Cells 2022. [PMID: 35126826 DOI: 10.4252/wjsc.v14.i1.1]] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Regenerative medicine is the field concerned with the repair and restoration of the integrity of damaged human tissues as well as whole organs. Since the inception of the field several decades ago, regenerative medicine therapies, namely stem cells, have received significant attention in preclinical studies and clinical trials. Apart from their known potential for differentiation into the various body cells, stem cells enhance the organ's intrinsic regenerative capacity by altering its environment, whether by exogenous injection or introducing their products that modulate endogenous stem cell function and fate for the sake of regeneration. Recently, research in cardiology has highlighted the evidence for the existence of cardiac stem and progenitor cells (CSCs/CPCs). The global burden of cardiovascular diseases' morbidity and mortality has demanded an in-depth understanding of the biology of CSCs/CPCs aiming at improving the outcome for an innovative therapeutic strategy. This review will discuss the nature of each of the CSCs/CPCs, their environment, their interplay with other cells, and their metabolism. In addition, important issues are tackled concerning the potency of CSCs/CPCs in relation to their secretome for mediating the ability to influence other cells. Moreover, the review will throw the light on the clinical trials and the preclinical studies using CSCs/CPCs and combined therapy for cardiac regeneration. Finally, the novel role of nanotechnology in cardiac regeneration will be explored.
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Affiliation(s)
- Radwa A Mehanna
- Medical Physiology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Marwa M Essawy
- Oral Pathology Department, Faculty of Dentistry/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Mona A Barkat
- Human Anatomy and Embryology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Ashraf K Awaad
- Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Eman H Thabet
- Medical Physiology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Heba A Hamed
- Histology and Cell Biology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Hagar Elkafrawy
- Medical Biochemistry Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Nehal A Khalil
- Medical Biochemistry Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Abeer Sallam
- Medical Physiology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Marwa A Kholief
- Forensic Medicine and Clinical toxicology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Samar S Ibrahim
- Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt
| | - Ghada M Mourad
- Histology and Cell Biology Department/Center of Excellence for Research in Regenerative Medicine and Applications, Faculty of Medicine, Alexandria University, Alexandria 21500, Egypt.
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Elbostany EA, Elghoroury EA, Thabet EH, Rashad AA, Rasheed EA, El-Saeed GSM, Abdelhalim DA, Abdelfattah SN, Salama II, Salama N. Oxidative stress and hepcidin expression in pediatric sickle cell anemia with iron overload. Hematol Oncol Stem Cell Ther 2021; 16:238-244. [PMID: 34883086 DOI: 10.1016/j.hemonc.2021.11.003] [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: 06/07/2021] [Revised: 10/10/2021] [Accepted: 11/14/2021] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Blood transfusion (BT) is essential in treating sickle cell disease (SCD); however, it leads to iron overload (IO) and oxidative stress. We studied the relationship between oxidative stress, iron status parameters, hepcidin mRNA gene expression, and IO in SCD patients. METHODS We classified all SCD patients (n = 90) into two groups: Group I, 45 children (s.ferritin ≥ 938 ng/mL) and Group II, 45 children (s.ferritin < 938 ng/mL). A total of 55 children, age and sex matched, participated as a control group. Malondialdehyde (MDA), nitrite, s.iron, s.total iron-binding capacity (sTIBC), transferrin saturation %, s.ferritin, s.hepcidin, and hepcidin mRNA gene expression were assessed. RESULTS Among SCD BT-dependent patients (>3 times/year), 63% were from Group I and 37% from Group II, p < .01. The two patient groups had significantly lower s.hepcidin and hepcidin gene expression than controls (p < .001). TIBC, s.iron, s.ferritin, transferrin saturation %, ferritin/hepcidin ratio, and MDA levels were higher among SCD patients than controls (p < .001). Group I had higher mean level of ferritin/hepcidin ratio and MDA than Group II (p < .01). The higher level of MDA and increased frequency of BT were the significant predicting risk factors for IO (p < .05). A receiver-operating characteristic curve indicates that MDA is the outstanding significant biomarker for high level of s.ferritin with subsequent IO progression. CONCLUSION MDA may serve as a biomarker of oxidative stress and IO in SCD patients. This result paid attention for urgent initiation of antioxidant and chelation therapy on detecting increased MDA level.
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Affiliation(s)
- Eman A Elbostany
- Department of Pediatrics, National Research Centre, Cairo, Egypt
| | - Eman A Elghoroury
- Department of Clinical and Chemical Pathology, National Research Centre, Cairo, Egypt.
| | - Eman H Thabet
- Department of Clinical and Chemical Pathology, National Research Centre, Cairo, Egypt
| | - Alaa A Rashad
- Department of Pediatrics, National Research Centre, Cairo, Egypt
| | - Enas A Rasheed
- Department of Clinical and Chemical Pathology, National Research Centre, Cairo, Egypt
| | | | - Dalia A Abdelhalim
- Department of Clinical and Chemical Pathology, National Research Centre, Cairo, Egypt
| | - Safa N Abdelfattah
- Department of Clinical and Chemical Pathology, National Research Centre, Cairo, Egypt
| | - Iman I Salama
- Department of Community Medicine Research, National Research Centre, Cairo, Egypt
| | - Niveen Salama
- Department of pediatrics, Faculty of Medicine, Cairo University, Egypt
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6
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E Hassan N, A El-Masry S, S M El-Saeed G, Al-Tohamy M, H Thabet E, Aly MM, Mohsen M, Khalil A. Association Between Visceral Adipose Tissue and Estradiol with Bone Health among Obese Women with Metabolic Syndrome. Pak J Biol Sci 2020; 23:1237-1244. [PMID: 32981256 DOI: 10.3923/pjbs.2020.1237.1244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVE Visceral Adipose Tissue (VAT) which is associated with a higher risk of Metabolic Syndrome (MS) shows adverse effects on bone health. Moreover, MS is associated with high concentrations of serum estradiol (E2), which is essential for bone, as it inhibits bone resorption. This study aimed to investigate the impact of visceral fat and serum E2 levels on bone health markers (vitamin D, C-terminal peptide, Ca and BMD) in obese women with and without MS. MATERIALS AND METHODS This cross-sectional study was conducted on 64 obese women, with and without MS. Waist Circumference (WC) was measured in cm. Bone Mineral Density (BMD) was assessed by energy X-ray absorptiometry (DEXA), VAT was evaluated using Body Composition Analyzer "Tanita". Serum E2, C-terminal peptide and vitamin D (Vit. D) were assessed using ELISA technique. Serum calcium (Ca), triglyceride (TG), total cholesterol (Tchol), High Density Lipoproteins (HDL), Low Density Lipoproteins (LDL) and Fasting Blood Sugar (FBS) were also assessed. RESULTS In women with MS, VAT showed significant positive correlations with Body Mass Index (BMI), WC and FBS. Whereas, in women without MS, VAT showed significant positive correlations with BMI, TG, age and significant negative correlation with E2. On the other hand, in women with MS, estradiol (E2) had significant negative correlation with age and significant positive correlations with BMD, BMI, FBS and body weight. While, in obese women without MS, it had significant negative correlations with Ca, VAT, age and systolic blood pressure. CONCLUSION In obese women with MS, increased VAT, higher BMI, older age and low E2 levels have clinical significance and hence, they should be considered when predicting bone health risk.
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Gomaa HE, Mahmoud M, Saad NE, Saad-Hussein A, Ismail S, Thabet EH, Farouk H, Kandil D, Heiba A, Hafez W. Impact of Apo E gene polymorphism on HCV therapy related outcome in a cohort of HCV Egyptian patients. J Genet Eng Biotechnol 2017; 16:47-51. [PMID: 30647703 PMCID: PMC6296613 DOI: 10.1016/j.jgeb.2017.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 03/16/2017] [Revised: 09/18/2017] [Accepted: 10/05/2017] [Indexed: 02/07/2023]
Abstract
The functional apolipoprotein E (Apo E) gene polymorphism could be used as a determinant of outcome of HCV infection. This study aimed to demonstrate the impact of Apo E genotype on the response to HCV combined therapy. MATERIAL AND METHODS The study has been implemented on 125 individuals with persistent HCV infection and 120 cases with sustained virologic response (SVR). All participants were genotyped for ApoE gene polymorphism by a real-time quantitative PCR (qPCR). RESULTS Statistically significant differences were demonstrated regarding the Apo E genotypes between the two groups (P-value < .001) where the frequency of E3E3 was significantly higher among the chronic HCV-patients while E3E4 and E4E4 genotypes frequencies were higher among the SVR-subjects group and E3E3 genotype was associated with increased risk of chronicity (OR 4.7; 95% CI 1.9-12.1, P-value < .001). Moreover, There were statically significant differences regarding E3 and E4 alleles frequencies, where E3 allele display a higher frequency among the chronic HCV-patient group while the SVR-subjects group showed higher frequency of E4 allele and the carriers of E3 allele have 1.4 times more risk to develop chronicity than those with E4 allele (OR 1.4; 95% CI 1.0-2.0, P-value < .05). Meanwhile the protective E2 allele was absent in all infected participants. CONCLUSION This study supports the hypothesis of the protective impact of Apo E4 allele that favors viral clearance of HCV infection and its recovery after combined therapy, while the Apo E3 allele is considered as a particular risk factor for the chronicity in HCV patients and resistance to therapy. Whereas the Apo E2 allele confers a resistance to HCV infection at a time of exposure.
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Affiliation(s)
- Howayda E Gomaa
- Clinical Pathology Department, National Research Centre, El-Behoos Street, Giza, Egypt
| | - Mohamed Mahmoud
- Internal Medicine Department, National Research Centre, Egypt
| | - Nevine E Saad
- Clinical Pathology Department, National Research Centre, El-Behoos Street, Giza, Egypt
| | - Amal Saad-Hussein
- Environmental and Occupational Medicine Department, National Research Centre, Egypt
| | - Somaia Ismail
- Medical Molecular Genetics Department, National Research Centre, Egypt
| | - Eman H Thabet
- Clinical Pathology Department, National Research Centre, El-Behoos Street, Giza, Egypt
| | - Hebatallah Farouk
- Clinical Pathology Department, National Research Centre, El-Behoos Street, Giza, Egypt
| | - Dina Kandil
- Clinical Pathology Department, National Research Centre, El-Behoos Street, Giza, Egypt
| | - Ahmed Heiba
- Internal Medicine Department, National Research Centre, Egypt
| | - Wael Hafez
- Internal Medicine Department, National Research Centre, Egypt
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Galal A, Fadel FI, Mokhtar E, Elshamaa MF, Elghoroury EA, Kamel S, Elsaeed GSM, Thabet EH. Matrix Metalloproteinase (MMP)-9 Levels in Children on Hemodialysis: Association with MMP-9 C -1562T Gene Polymorphism and Vitamin D Levels. Int J Biomed Sci 2016; 12:95-104. [PMID: 27829825 PMCID: PMC5080414] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
BACKGROUND AND OBJECTIVES Data concerning the concentration of matrix metalloproteinase-9 (MMP-9) and its functional polymorphisms in chronic kidney diseases (CKD) are conflicting. The present study aimed to evaluate the levels of MMP-9in children with end stage renal diseases (ESRD) on hemodialysis (HD) and to explore its association with MMP-9 polymorphism and vitamin D levels as an important risk factors for cardiovascular diseases (CVD). METHODS We studied 55 children with ESRD on hemodialysis and 18 healthy children served as controls. MMP-9 and vitamin D levels were measured by ELISA in serum of all patients and controls. Genotypes for MMP-9 polymorphism(C-1562T) were determined by RFLP for only 28 of the patients and all the controls. RESULTS There were insignificantly reduced MMP-9levels of patients vs. controls, however, there was significant increase in MMP-9 levels associated with CC genotypes for(C-1562T) polymorphism compared with CT genotype (p=0.01). We found that at MMP-9 base position-1562, the frequencies of the genotypes CC and CT in Children on HD were 71.4% and 28.6% respectively while all our controls were of the CC genotype. The alleles frequencies of C and T in patients were 85.7% and 14.29% as compared to 100% and 0%, respectively in the controls. Significant decrease in vitamin D was observed in children on HD versus that in controls (p=0.008). Serum MMP9 levels and age were variables that were independently associated with CVD. CONCLUSIONS MMP9 genetic polymorphism (C-1562T) affects MMP9alterations in ESRD children on HD and vitamin D deficiency is common in our HD pediatric patients who require attention in accordance with current practice guidelines. They probably require supplementation with higher doses of cholecalciferol.
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Affiliation(s)
- Ashraf Galal
- Department of Pediatric, National Research Centre, Cairo, Egypt
| | | | - Enas Mokhtar
- Department of Pediatric, National Research Centre, Cairo, Egypt
| | | | - Eman A. Elghoroury
- Department of Clinical Pathology, National Research Centre, Cairo, Egypt
| | - Solaf Kamel
- Department of Clinical Pathology, National Research Centre, Cairo, Egypt
| | | | - Eman H. Thabet
- Department of Clinical Pathology, National Research Centre, Cairo, Egypt
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Saad-Hussein A, Thabet EH, Taha MM, Shahy EM, Mahdy-Abdallah H. Association of ADAM33 gene polymorphism and arginase activity with susceptibility to ventilatory impairment in wood dust-exposed workers. Hum Exp Toxicol 2016; 35:966-73. [DOI: 10.1177/0960327115611971] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
ADAM33 represents an important gene of susceptibility for lung function impairment. This work aimed to evaluate the association between genetic polymorphism of ADAM33 at four single nucleotide polymorphisms (T1, T2, S1, and Q1) and arginase activity with respiratory functions impairment in wood workers. The study was done to compare ventilatory functions and arginase activity of 82 wood workers and 81 controls. Genotyping was determined by using the polymerase chain restriction fragment length polymorphism method. Forced expiratory volume in the first second (FEV1), forced vital capacity (FVC), and peak expiratory flow rate (PEF) of the workers were significantly reduced compared with the controls. T1 single nucleotide polymorphism (SNP) was associated with obvious decline in the FEV1, FVC, and PEF in wood workers, while T2 SNP was associated with decline in FEV1 and PEF. A significant increase in arginase activity was found in T2 and S1 SNPs of the exposed workers. Increase in duration of exposure was correlated with the decline in ventilatory functions. This inverse correlation was significant for pulmonary function indices in AA and GG genotypes of T1 and T2, respectively. Moreover, significance was detected for FVC and FEV1 in AA and GA genotypes of S1 and Q1. A positive correlation between arginase activity and duration of exposure was found to be significant in GG genotype of S1 SNP. An association between ADAM33 gene polymorphism and impaired lung functions was detected in wood dust-exposed workers. Arginase activity may play an associated important role in increasing this impairment in wood workers.
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Affiliation(s)
- A Saad-Hussein
- Environmental Research Division, Department of Environmental and Occupational Medicine, National Research Centre, Dokki, Giza, Egypt
| | - EH Thabet
- Clinical Pathology, National Research Centre, Dokki, Giza, Egypt
| | - MM Taha
- Clinical Pathology, National Research Centre, Dokki, Giza, Egypt
| | - EM Shahy
- Environmental Research Division, Department of Environmental and Occupational Medicine, National Research Centre, Dokki, Giza, Egypt
| | - H Mahdy-Abdallah
- Environmental Research Division, Department of Environmental and Occupational Medicine, National Research Centre, Dokki, Giza, Egypt
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10
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Fadel FI, Elshamaa MF, Salah A, Nabhan M, Rasheed M, Kamel S, Kandil D, Thabet EH. Fas/Fas Ligand pathways gene polymorphisms in pediatric renal allograft rejection. Transpl Immunol 2016; 37:28-34. [PMID: 27109035 DOI: 10.1016/j.trim.2016.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 03/28/2016] [Accepted: 04/20/2016] [Indexed: 12/27/2022]
Abstract
BACKGROUND An essential milestone in pediatric transplantation is to find noninvasive biomarkers to monitor acute rejection (AR). In this retrospective (Case-control) study, we examined the role of Fas -670A/G and Fas Ligand (FasL) -843C/T gene polymorphisms in allograft nephropathy in pediatric renal transplant recipients. METHODS In 47 pediatric kidney transplant recipients and 20 healthy controls, Fas -670A/G and FasL -843C/T gene polymorphisms as well as serum soluble Fas Ligand level (sFasL) were measured. RESULTS Serum sFasL levels were significantly higher in transplant recipients children than that in controls (548.25±298.64pg/ml vs 143.17±44.55pg/ml, p=0.0001). There was no significant difference between patients with AR and those without AR in regards to serum sFasL levels (567.70±279.87pg/ml vs 507.85±342.80pg/ml, p=0.56). Fas -670A/G genotypes or alleles were not significantly different between controls and transplant recipients and among transplant recipients with and without AR. (P>0.05 for all). FasL -843C/T genotypes were not different between transplant recipients and controls and among transplant recipients with and without AR (P>0.05 for all). However, Frequency of C allele in transplant patients was significantly higher than that in the control group (44.68% vs 25%, P=0.03). FasL -843C/T alleles were significantly different between patients with and without AR (P=0.03). The percentages of C allele were higher in children with AR (58.82% vs 36.67%). We found that serum FasL and serum creatinine were variables that were independently associated with AR. CONCLUSION This study suggests that FasL gene polymorphisms in peripheral blood might be accurate in detecting cellular AR.
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Affiliation(s)
- Fatina I Fadel
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt.
| | | | - Ahmed Salah
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt.
| | - Marwa Nabhan
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt.
| | - Maha Rasheed
- Clinical & Chemical Pathology Department, National Research Centre, Cairo, Egypt.
| | - Solaf Kamel
- Clinical & Chemical Pathology Department, National Research Centre, Cairo, Egypt.
| | - Dina Kandil
- Clinical & Chemical Pathology Department, National Research Centre, Cairo, Egypt.
| | - Eman H Thabet
- Clinical & Chemical Pathology Department, National Research Centre, Cairo, Egypt
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El-Saeed GSM, Fadel F, Elshamaa MF, Galal REE, Elghoroury EA, Nasr SA, Thabet EH, Abdelrahman SM. Advanced glycation end products and soluble receptor as markers of oxidative stress in children on hemodialysis. Ren Fail 2015; 37:1452-6. [DOI: 10.3109/0886022x.2015.1077317] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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12
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Gomaa HE, Mahmoud M, Saad NE, Hussein AS, Ismail S, Thabet EH, Farouk H, Kandil D, Heiba A, Hafez W. Interactive Effects of Immunoglobulin Gamma and Human Leucocyte Antigen Genotypes on Response to Interferon Based Therapy of Hepatitis C Virus. Open Access Maced J Med Sci 2015; 3:245-9. [PMID: 27275229 PMCID: PMC4877861 DOI: 10.3889/oamjms.2015.046] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Revised: 04/19/2015] [Accepted: 04/21/2015] [Indexed: 11/06/2022] Open
Abstract
AIM: We examined the role that immunoglobulin GM 23 and KM allotypes—genetic markers of γ and κ chains, respectively—play in response to treatment of hepatitis C virus (HCV) infection in Egyptian patients. MATERIAL AND METHODS: A total of 120 persons who had responded to HCV treatment and 125 with persistent HCV infection were genotyped for the presence of GM23 and KM determinants. HLA –C genotyping was also done. RESULTS: Association of GM 23+ and KM3 was significantly associated with non response to treatment (P < 0.0001). Individuals who lacked this GM genotype (but were positive for KM1,2 and 3) were likely to respond to treatment (P=0.045). Association of heterozygous GM23 (+/-) with KM 1,2 and 3 or KM3 alone was significantly associated with SVR (P = 0.001) and (P = 0.0001) respectively. Particular combinations of HLA and GM genotypes were associated significantly with the response to HCV treatment. The combination of HLAC2C2 and GM23+ was associated with persistence of infection (P = 0.027) while the association of HLAC2C2 and heterozygous GM23+/- was associated with SVR (P = 0.001). The association of HLAC1C1 and heterozygous GM23+/- was significantly associated with SVR (P = 0.001) and also subjects with HLA C1/C2 and heterozygous GM23+/- were likely to respond to treatment (P = 0.003) while subjects with HLA C1/C2 and GM23+ show tendency to resist to treatment (P = 0.0001). CONCLUSION: Our results didn’t support a role for KM allotypes, GM23 allotype plays a role in the persistence of HCV infection in the presence or absence of KM1,3. Interaction between certain GM and HLA-C genotypes may favor adequate response to interferon based therapies.
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Affiliation(s)
- Howayda E Gomaa
- Clinical and Chemical Pathology Department, National Research Centre, Cairo, Egypt
| | - Mohamed Mahmoud
- Internal Medicine Department, National Research Centre, Cairo, Egypt
| | - Nevine E Saad
- Clinical and Chemical Pathology Department, National Research Centre, Cairo, Egypt
| | - Amal S Hussein
- Environmental and Occupational Medicine Department, National Research Centre, Cairo, Egypt
| | - Somaia Ismail
- Medical Molecular Genetics Department, National Research Centre, Cairo, Egypt
| | - Eman H Thabet
- Clinical and Chemical Pathology Department, National Research Centre, Cairo, Egypt
| | - Hebatallah Farouk
- Clinical and Chemical Pathology Department, National Research Centre, Cairo, Egypt
| | - Dina Kandil
- Clinical and Chemical Pathology Department, National Research Centre, Cairo, Egypt
| | - Ahmed Heiba
- Internal Medicine Department, National Research Centre, Cairo, Egypt
| | - Wael Hafez
- Internal Medicine Department, National Research Centre, Cairo, Egypt
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Gheita TA, Abd El Baky AMNED, Assal HS, Farid TM, Rasheed IA, Thabet EH. Serum cystatin C, urinary neutrophil gelatinase-associated lipocalin and N-acetyl-beta-D-glucosaminidase in juvenile and adult patients with systemic lupus erythematosus: Correlation with clinical manifestations, disease activity and damage. Saudi J Kidney Dis Transpl 2015; 26:497-506. [PMID: 26022020 DOI: 10.4103/1319-2442.157336] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Lupus nephritis (LN) is a potentially devastating outcome of systemic lupus erythematosus (SLE). It is important to identify reliable, non-invasive methods to assess the kidneys in patients with SLE. The aim of the study was to measure the level of novel markers of renal involvement in these patients and assess their correlation with disease activity and damage. Sixtyone patients with SLE (33 adults and 28 juvenile) were included in the study. Fifty-two ageand sex-matched healthy individuals served as controls. Full history taking, thorough clinical examination and laboratory investigations were performed and disease activity and damage were assessed for all patients. Renal bio-markers including serum cystatin C, urinary neutrophil gelatinase-associated lipocalin (UNGAL) and N-acetyl-beta-D-glucosaminidase (UNAG) were assessed in patients and controls. There was a significant increase in serum cystatin C, UNGAL and UNAG levels in the adult SLE patients compared with controls (P = 0.000, P = 0.013 and P = 0.018, respectively); serum cystatin C and UNGAL levels were higher in the juvenile patients compared with controls (P = 0.038 and P = 0.000, respectively). Serum cystatin C significantly correlated with the damage index, renal biopsy class and negatively with the serum albumin; UNGAL correlated with albuminuria and the level of nephritis and UNAG negatively correlated with serum albumin level. Our study suggests that serum cystatin C, UNGAL and UNAG are important markers of LN and both cystatin C and UNAG would help in predicting the renal biopsy class.
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Helal SF, Gomaa HE, Thabet EH, Younan MA, Helmy NA. Impact of IL-10 (-1082) promoter-single nucleotide polymorphism on the outcome of hepatitis C virus genotype 4 infection. Clin Med Insights Gastroenterol 2014; 7:19-24. [PMID: 24833945 PMCID: PMC4019231 DOI: 10.4137/cgast.s13658] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Revised: 01/23/2014] [Accepted: 01/27/2014] [Indexed: 12/18/2022]
Abstract
UNLABELLED Immunoregulatory cytokines may influence the hepatitis C virus (HCV) infection outcome. This study aimed to determine the genotypic and allelic frequencies of the interleukin (IL)-10 (-1082) G/A polymorphism, and its association with chronicity or resolution of HCV genotype 4 infection in Egypt. The frequencies of different dimorphic polymorphisms based on single nucleotide substitution in chronic HCV patients (50) and resolved HCV patients (50) were: IL-10 (-1082) G/G 22 (44%) and 18 (36%), G/A 19 (38%) and 24 (48%), and A/A 9 (18%), and 8 (16%), respectively. In the sustained virologic response (SVR) (36) and spontaneously resolved subjects (14) groups, the frequencies were: IL-10 (-1082) G/G 11 (30.6%) and 7 (50%) G/A 18 (50%) and 6 (42.9%), A/A 7 (19.4%) and 1 (7.1%), respectively. An association between male gender and chronic hepatitis C outcome (P value 0.041) was found. However, no significant gender difference was found when we compared females versus males with elevated alanine transaminase (ALT) levels in the chronic HCV patient group (P value = 1). CONCLUSION No significant difference in the frequency of IL-10 single nucleotide polymorphism (SNP) at position 1082 was found between chronic and resolved HCV subjects.
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Affiliation(s)
- Soheir F Helal
- Virology and Clinical Pathology Department, Cairo University, Egypt
| | - Howayda E Gomaa
- Clinical and Chemical Pathology Department, National Research Centre, Cairo, Egypt
| | - Eman H Thabet
- Clinical and Chemical Pathology Department, National Research Centre, Cairo, Egypt
| | - Mariam A Younan
- Virology and Clinical Pathology Department, Cairo University, Egypt
| | - Neveen A Helmy
- Clinical and Chemical Pathology Department, National Research Centre, Cairo, Egypt
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Assal HS, Tawfeek S, Rasheed EA, El-Lebedy D, Thabet EH. Serum cystatin C and tubular urinary enzymes as biomarkers of renal dysfunction in type 2 diabetes mellitus. Clin Med Insights Endocrinol Diabetes 2013; 6:7-13. [PMID: 23966807 PMCID: PMC3738377 DOI: 10.4137/cmed.s12633] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Renal tubulointerstitium plays an important role in the development and progression of diabetic nephropathy. The aim of this study was to assess serum cystatin C and 2 renal tubular enzymes, neutrophil gelatinase associated lipocalin (NGAL) and N-acetyl-beta-D-glucosaminidase (NAG), as screening markers for early renal dysfunction in patients with type 2 diabetes mellitus (T2DM). ROC curve analysis showed that urinary NAG is the most sensitive marker of microalbuminuria and early renal damage with sensitivity of 83.3%, while serum cystatin C was the most sensitive and specific marker of macroalbuminuria and damage progress with sensitivity of 70.8% and specificity of 83.3% versus 70.6% and 83.3% for uNGAL; and 64.7% and 66.7% for NAG, respectively. Our data indicate that urinary NAG is the most sensitive marker for early renal damage in diabetic patients. However, for damage progress, serum cystatin C is the most sensitive and specific marker for follow-up and monitoring renal dysfunction.
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Affiliation(s)
- Heba S Assal
- Department of Internal Medicine, Medical Research Division, National Research Centre, Egypt
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16
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Elshamaa MF, Sabry SM, Bazaraa HM, Koura HM, Elghoroury EA, Kantoush NA, Thabet EH, Abd-El Haleem DA. Genetic polymorphism of ACE and the angiotensin II type1 receptor genes in children with chronic kidney disease. J Inflamm (Lond) 2011; 8:20. [PMID: 21859496 PMCID: PMC3167745 DOI: 10.1186/1476-9255-8-20] [Citation(s) in RCA: 17] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Accepted: 08/23/2011] [Indexed: 01/20/2023] Open
Abstract
AIM AND METHODS We investigated the association between polymorphisms of the angiotensin converting enzyme-1 (ACE-1) and angiotensin II type one receptor (AT1RA1166C) genes and the causation of renal disease in 76 advanced chronic kidney disease (CKD) pediatric patients undergoing maintenance hemodialysis (MHD) or conservative treatment (CT). Serum ACE activity and creatine kinase-MB fraction (CK-MB) were measured in all groups. Left ventricular mass index (LVMI) was calculated according to echocardiographic measurements. Seventy healthy controls were also genotyped. RESULTS The differences of D allele and DI genotype of ACE were found significant between MHD group and the controls (p = 0.0001). ACE-activity and LVMI were higher in MHD, while CK-MB was higher in CT patients than in all other groups. The combined genotype DD v/s ID+II comparison validated that DD genotype was a high risk genotype for hypertension .~89% of the DD CKD patients were found hypertensive in comparison to ~ 61% of patients of non DD genotype(p = 0.02). The MHD group showed an increased frequency of the C allele and CC genotype of the AT1RA1166C polymorphism (P = 0.0001). On multiple linear regression analysis, C-allele was independently associated with hypertension (P = 0.04). CONCLUSION ACE DD and AT1R A/C genotypes implicated possible roles in the hypertensive state and in renal damage among children with ESRD. This result might be useful in planning therapeutic strategies for individual patients.
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Affiliation(s)
| | - Samar M Sabry
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hafez M Bazaraa
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hala M Koura
- Pediatric Department, National Research Centre, Cairo, Egypt
| | - Eman A Elghoroury
- Clinical & Chemical Pathology Department, National Research Centre, Cairo, Egypt
| | - Nagwa A Kantoush
- Clinical & Chemical Pathology Department, National Research Centre, Cairo, Egypt
| | - Eman H Thabet
- Clinical & Chemical Pathology Department, National Research Centre, Cairo, Egypt
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