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Alzu’bi A, Zoubi MSA, Al-Trad B, AbuAlArjah MI, Shehab M, Alzoubi H, Albals D, Abdelhady GT, El-Huneidi W. Acute Hepatic Injury Associated with Acute Administration of Synthetic Cannabinoid XLR-11 in Mouse Animal Model. Toxics 2022; 10:668. [PMID: 36355959 PMCID: PMC9692363 DOI: 10.3390/toxics10110668] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/01/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
The widespread recreational use of synthetic cannabinoids (SCs) has become a serious health issue. Reports of life-threatening intoxications related to SC consumption have markedly increased in recent years, including neurotoxicity, cardiotoxicity, nephrotoxicity, and hepatotoxicity. We investigated the impact of acute administration of the synthetic cannabinoid XLR-11 (3 mg/kg, i.p. for 5 consecutive days) on the liver in BALB/c mouse animal model. Using real-time quantitative RT-PCR, MDA assay, and TUNEL assay, we found consistent up-regulation of a variety of genes involved in oxidative stress (NOX2, NOX4, and iNOS), inflammation (TNF-α, IL-1β, IL-6), and apoptosis (Bax) in the liver of XLR-11 treated mice compared to control mice. These finding were supported with an elevation of MDA levels and TUNEL positive cells in the liver of XLR-11 treated mice which further confirm increased oxidative stress and apoptosis, respectively. Histopathological analysis of the liver of XLR-11 treated mice confirmed pronounced hepatic necrosis associated with inflammatory cell infiltration. Furthermore, elevated ALT and AST serum levels were also identified in XLR-11 treated mice indicating possible liver damage. Overall, SC-induced hepatotoxicity seems to be mainly mediated by activated oxidative stress and inflammatory processes in the liver, but the specific mechanisms involved require further investigations. However, the present study shed light on the potential deleterious role of acute administration of SCs in the progression to acute hepatic injury which enhances our understanding of the adverse effect of SC consumption.
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Affiliation(s)
- Ayman Alzu’bi
- Department of Basic Medical Sciences, Faculty of Medicine, Yarmouk University, Irbid 211-63, Jordan
| | - Mazhar Salim Al Zoubi
- Department of Basic Medical Sciences, Faculty of Medicine, Yarmouk University, Irbid 211-63, Jordan
| | - Bahaa Al-Trad
- Department of Biological Sciences, Faculty of Science, Yarmouk University, Irbid 211-63, Jordan
| | - Manal Isam AbuAlArjah
- Department of Basic Medical Sciences, Faculty of Medicine, Yarmouk University, Irbid 211-63, Jordan
| | - Malek Shehab
- Department of Biological Sciences, Faculty of Science, Yarmouk University, Irbid 211-63, Jordan
| | - Hiba Alzoubi
- Department of Basic Medical Sciences, Faculty of Medicine, Yarmouk University, Irbid 211-63, Jordan
| | - Dima Albals
- Department of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Yarmouk University, Irbid 211-63, Jordan
| | - Gamal T. Abdelhady
- Department of Basic Medical Sciences, Faculty of Medicine, Yarmouk University, Irbid 211-63, Jordan
- Department of Anatomy and Embryology, Faculty of Medicine, Ain Shams University, Cairo 11566, Egypt
| | - Waseem El-Huneidi
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
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Shehab M, Pope FD, Delgado-Saborit JM. The contribution of cooking appliances and residential traffic proximity to aerosol personal exposure. J Environ Health Sci Eng 2021; 19:307-318. [PMID: 34150237 PMCID: PMC8172705 DOI: 10.1007/s40201-020-00604-7] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
PURPOSE Indoor and outdoor factors affect personal exposure to air pollutants. Type of cooking appliance (i.e. gas, electricity), and residential location related to traffic are such factors. This research aims to investigate the effect of cooking with gas and electric appliances, as an indoor source of aerosols, and residential traffic as outdoor sources, on personal exposures to particulate matter with an aerodynamic diameter lower than 2.5 μm (PM2.5), black carbon (BC), and ultrafine particles (UFP). METHODS Forty subjects were sampled for four consecutive days measuring personal exposures to three aerosol pollutants, namely PM2.5, BC, and UFP, which were measured using personal sensors. Subjects were equally distributed into four categories according to the use of gas or electric stoves for cooking, and to residential traffic (i.e. houses located near or away from busy roads). RESULTS/CONCLUSION Cooking was identified as an indoor activity affecting exposure to aerosols, with mean concentrations during cooking ranging 24.7-50.0 μg/m3 (PM2.5), 1.8-4.9 μg/m3 (BC), and 1.4 × 104-4.1 × 104 particles/cm3 (UFP). This study also suggest that traffic is a dominant source of exposure to BC, since people living near busy roads are exposed to higher BC concentrations than those living further away from traffic. In contrast, the contribution of indoor sources to personal exposure to PM2.5 and UFP seems to be greater than from outdoor traffic sources. This is probably related to a combination of the type of building construction and a varying range of activities conducted indoors. It is recommended to ensure a good ventilation during cooking to minimize exposure to cooking aerosols. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s40201-020-00604-7.
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Affiliation(s)
- M. Shehab
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
- Environmental Protection Authority (EPA), Shuwaikh Industrial, Kuwait City, Kuwait
| | - F. D. Pope
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
| | - J. M. Delgado-Saborit
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
- Perinatal Epidemiology, Environmental Health and Clinical Research, School of Medicine, Universitat Jaume I, Castellon, Spain
- ISGlobal Barcelona Institute for Global Health, Barcelona Biomedical Research Park, Barcelona, Spain
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Al-Trad B, Abo-Alrob O, Jaradat Y, Al Zoubi M, Alkarki AK, Aljabali AAA, Qar J, Omari S, Shehab M, Kanan B. Effect of Estrogen and Progesterone Hormones on the Expression of Angiotensin II Receptors in the Heart and Aorta of Male Rats. Endocr Metab Immune Disord Drug Targets 2020; 21:1504-1511. [PMID: 33100210 DOI: 10.2174/1871530320666201023124544] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 08/30/2020] [Accepted: 09/04/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Activation of the Angiotensin II type 1 receptor (AT1R) has been implicated in the pathogenesis of the cardiovascular disease, while activation of Angiotensin II type 2 receptor (AT2R) leads to effects that are opposite to those mediated by AT1R. The interaction between female sex hormones and the renin-angiotensin system was proven to play an essential role in the pathological changes in the cardiovascular system. OBJECTIVES To investigate the direct effect of estrogen and progesterone on arterial and cardiac AT1R and AT2R expression in vivo in male. METHOD Male adult rats were assigned into four groups: Group 1 (control), group 2 (progesterone treated group; 10mg/kg), group 3 (estrogen treated group; 20μg/kg) and group 4 (progesterone; 10mg/kg + estrogen; 20μg/kg treated group). All treatments were administrated subcutaneously every second day for 21days. RESULTS Estrogen treatments increase the left ventricle (LV) protein expression of AT1R, and progesterone treatment decreased the LV protein expression of AT2R. In the aorta, estrogen treatment increased the mRNA expression levels of AT1R, while progesterone treatment increased the AT2R mRNA expression levels. Estrogen treatment decreases the LV and aortic endothelial nitric-oxide synthase (eNOS) mRNA levels while progesterone treatments decrease the LV eNOS mRNA levels but increase the aortic eNOS mRNA levels. The serum angiotensin II levels were increased by estrogen treatment only. CONCLUSION Both estrogen and progesterone treatments appear to have a harmful effect on the male rat hearts, possibly by increasing the protein expression of AT1R (for estrogen), decrease the protein and mRNA expression of AT2R (for progesterone), and decrease the eNOS mRNA levels (for both). However, it seems that progesterone but not estrogen exerts a vascular protective effect in males.
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Affiliation(s)
- Bahaa Al-Trad
- Department of Biological Sciences, Yarmouk University, 21163Irbid, Jordan
| | - Osama Abo-Alrob
- Faculty of Pharmacy, Department of Clinical Pharmacy and Pharmacy Practice, Yarmouk University, Irbid, Jordan
| | - Yousf Jaradat
- Department of Biological Sciences, Yarmouk University, 21163Irbid, Jordan
| | - Mazhar Al Zoubi
- Faculty of Medicine, Department of Basic Medical Sciences, Yarmouk University, Irbid, Jordan
| | | | - Alaa A A Aljabali
- Faculty of Pharmacy, Department of Pharmaceutics and Pharmaceutical Technology, Yarmouk University, Irbid, Jordan
| | - Janti Qar
- Department of Biological Sciences, Yarmouk University, 21163Irbid, Jordan
| | - Sahar Omari
- Department of Biological Sciences, Yarmouk University, 21163Irbid, Jordan
| | - Malek Shehab
- Department of Biological Sciences, Yarmouk University, 21163Irbid, Jordan
| | - Bahja Kanan
- Department of Biological Sciences, Yarmouk University, 21163Irbid, Jordan
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Rosso L, Shehab M, Tosi D, Righi I, Carrinola R, Ferrero S, Vaira V, Mendogni P, Palleschi A, Morlacchi L, Nosotti M. Diagnostic Yield of Transbronchial Cryobiopsies for the Diagnosis of Rejection in Lung Transplant Patients. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.698] [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: 10/24/2022] Open
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Al-Trad B, Al Zoubi M, Migdady M, Lahham J, A Aljabali A, Shehab M, Alomari S, Al-Qudah M, Qar J, Muhaidat R, El-Oqlah A, Tambuwala M. Effects of Artemisia judaica essential oil and ethanolic extract on experimentally-induced benign prostatic hyperplasia. Pharmacogn Mag 2020. [DOI: 10.4103/pm.pm_216_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Shehab M, Pikkel Y, Karmeli R. Surgical Versus Endovascular Revascularization of Long Superficial Femoral Artery Occlusion for Leg Necrosis. Eur J Vasc Endovasc Surg 2019. [DOI: 10.1016/j.ejvs.2019.06.780] [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: 11/16/2022]
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Al-Trad B, Aljabali A, Al Zoubi M, Shehab M, Omari S. Effect of gold nanoparticles treatment on the testosterone-induced benign prostatic hyperplasia in rats. Int J Nanomedicine 2019; 14:3145-3154. [PMID: 31118628 PMCID: PMC6507074 DOI: 10.2147/ijn.s202645] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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: 01/24/2019] [Accepted: 03/01/2019] [Indexed: 12/14/2022] Open
Abstract
Background: Gold nanoparticles (AuNps) are promising agents for prostate cancer therapy. Herein, the in vivo effects of 20 and 50 nm sized AuNps on experimentally induced benign prostatic hyperplasia (BPH) was examined. Materials and methods: Adult male rats were divided into four groups (n=6–8 each). A negative control group and three groups were injected daily with testosterone (3 mg/kg/subcutaneously) to induce BPH. Animals receiving testosterone were randomized to untreated BPH group and two BPH groups which were treated intraperitoneally with 20 and 50 nm AuNps (5 mg/kg/daily) in addition to testosterone. After three weeks, histopathological changes and serum levels of testosterone and dihydrotestosterone (DHT) were analyzed. In addition, the prostate tissue levels of transforming growth factor-β1 (TGF-β1), vascular endothelial growth factor-a (VEGF-A) and interleukin-6 (IL-6) were measured using ELISA. Results: There were significant increases in the prostate weight/body weight ratio, serum testosterone and DHT and in the prostate tissue content of TGF-β1, IL-6 and VEGF-A in the untreated BPH group. histological examination showed morphological abnormalities with more proliferation in the glandular epithelial and stromal area and with abundant epithelial papillary folds in the BPH group. Simultaneous administration of 50 nm AuNps with testosterone tended to increase the prostate weight/body weight ratio and increase the tissue level of IL-6 in compared to the BPH group. Conversely, treatment with 20 nm AuNps significantly reduced the elevated tissue content of TGF-β1, IL-6, and VEGF-A. Histopathological examination also showed that 20 nm but not the 50 nm AuNps administration ameliorates testosterone-induced prostatic hyperplasia. Conclusions: In experimentally induced BPH, AuNps can inhibit the progression of BPH in a size-dependent manner. while 20 nm AuNps ameliorate BPH by its inhibitory effects on the prostatic cell proliferation, inflammation and angiogenesis, the 50 nm AuNps could potentially exacerbate the development of BPH in rats, mainly through enhancing the inflammatory process.
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Affiliation(s)
- Bahaa Al-Trad
- Department of Biological Sciences, Yarmouk University, Irbid, Jordan
| | - Alaa Aljabali
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Yarmouk University, Irbid, Jordan
| | - Mazhar Al Zoubi
- Department of Basic Medical Sciences, Faculty of Medicine, Yarmouk University, Irbid, Jordan
| | - Malek Shehab
- Department of Biological Sciences, Yarmouk University, Irbid, Jordan
| | - Sahar Omari
- Department of Biological Sciences, Yarmouk University, Irbid, Jordan
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Mousa M, Khairy M, Shehab M. Nanostructured ferrite/graphene/polyaniline using for supercapacitor to enhance the capacitive behavior. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3446-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ismail S, Essawi M, Sedky N, Hassan H, Fayez A, Helmy N, Shehab M, Farouk D, Elruby M, Otaify G, Eldarsh A, Hosny L, Gaber K, Aboul-Ezz EHA, Ramzy MI, Mehrez MI, Hassib NF, Elhadidi SMA, Aglan MS, Temtamy SA. ROBERTS SYNDROME: CLINICAL AND CYTOGENETIC STUDIES IN 8 EGYPTIAN PATIENTS AND MOLECULAR STUDIES IN 4 PATIENTS WITH GENOTYPE/PHENOTYPE CORRELATION. Genet Couns 2016; 27:305-323. [PMID: 30204960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The Roberts syndrome (RBS) is a rare autosomal recessive disorder caused by mutation in ESCO2 gene. Among over 150 reported international cases, 16 cases are Egyptian including the presently reported patients. The current study reports 8 new Egyptian patients from 7 unrelated consanguineous families investigating clinical phenotype as well as cytogenetic changes in all cases and mutational spectrum in 4 cases. Clinical, orodental, cytogenetic and molecular studies were done to investigate genotype/phenotype correlation. Evaluation of the studied 8 patients showed that they all exhibited the main limb and craniofacial features of Roberts syndrome. Cytogenetic studies including centromeric separation and puffing by Giemsa and DAPI stains and for the first time in Egypt analysis for premature centromeric division by FISH showed consistent centromeric separation in all studied cases. Molecular studies of 4 available patients showed that they all have ESCO2 gene mutation. We conclude that RBS has a well-defined clinical spectrum. The cytogenetic changes are due to sister chromatid cohesion defects which lead to mitotic dysfunction. We confirmed previous results of lack of genotype/phenotype correlation. We also confirmed that the severity of limb malformation correlates with craniofacial manifestations. We recommend detailed evaluation of orodental changes for further definition of the phenotype and for proper patient management. We emphasize the need for further studies for the frequency of premature centromeric separation by FISH as a possible indicator of phenotypic severity.
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Shehab M, El Helali A, Abdelkhalek M, Abdelshafy M, Mourad M, El Helaly H, Zikry M. Role of ureteric stents in relieving obstruction in patients with obstructive uropathy. Urol Ann 2013; 5:148-51. [PMID: 24049375 PMCID: PMC3764893 DOI: 10.4103/0974-7796.115731] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 01/17/2012] [Accepted: 01/30/2012] [Indexed: 11/23/2022] Open
Abstract
Purpose: The aim of this study is to evaluate the role of ureteric stents in relieving obstruction and improvement of kidney function in patients with obstructive uropathy. Materials and Methods: This study involved 138 patients with obstructive uropathy with age ranged from 2 months to 73 years. Patients classified into two groups: Group (I): Includes 57 patients (41.3%), ureteric stents fixed to them; and Group (II): Includes 81 patients (58.6%) managed by other treatment modalities. All patients underwent clinical assessment, Laboratory and radiologic investigations: At presentation and postoperative. These included: Complete urine analysis, urine culture and sensitivity, serum creatinine, serum urea nitrogen, serum uric acid, serum sodium (Na), serum potassium (K), Fasting blood glucose level and blood picture and plain X-ray (KUB), abdominal ultrasonography (US), diuretic renography and retrograde pyelography. Results: Renal glomerular filtration rate (GFR) was used as an indicator for improvement of renal function after fixation of ureteric stent. In group I: 56 (71.8%) kidneys showed significant recovery compared to 61 kidneys (66.3%). In group II, there is statistically significant relation between renal perfusion and renal recovery (P < 0.004), statistically significant relation between parenchymal thickness and recovery in both groups (P < 0.0002), statistically significant relation between degree of corticomedullary differentiation and recovery (P < 0.0003) and statistically significant relationship between hemoglobin levels at presentation and the recoverability (P < 0.002). Conclusion: The predictors of renal recoverability revealed that ureteral stents alone can help in regaining renal function and significant improvement of clinical condition in patients with obstructive uropathy.
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Affiliation(s)
- M Shehab
- Department of Urology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
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Abboud M, Maakaron J, Khoury R, Tamim H, Shehab M, Haddad F, Adams R, Taher A. Intracranial blood flow velocities in patients with sickle cell disease and β-thalassemia intermedia. Am J Hematol 2013; 88:825. [PMID: 23733527 DOI: 10.1002/ajh.23496] [Citation(s) in RCA: 2] [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] [Received: 05/14/2013] [Accepted: 05/20/2013] [Indexed: 11/08/2022]
Affiliation(s)
- M.R. Abboud
- Department of Pediatrics and Adolescent Medicine; American University of Beirut Medical Center; Beirut; Lebanon
| | - J.E. Maakaron
- Department of Internal Medicine; American University of Beirut Medical Center; Beirut; Lebanon
| | - R.A. Khoury
- Department of Pediatrics and Adolescent Medicine; American University of Beirut Medical Center; Beirut; Lebanon
| | - H.M. Tamim
- Department of Internal Medicine; American University of Beirut Medical Center; Beirut; Lebanon
| | - M. Shehab
- Department of Surgery; American University of Beirut; Beirut; Lebanon
| | - F. Haddad
- Department of Surgery; American University of Beirut; Beirut; Lebanon
| | - R.J. Adams
- Department of Neurosciences; Medical University of South Carolina Charleston; South Carolina
| | - A.T. Taher
- Department of Internal Medicine; American University of Beirut Medical Center; Beirut; Lebanon
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Abstract
Mycobacterium tuberculosis is endemic to many parts of the world. It may have variable clinical presentations, especially in the pediatric age group. Presented here is the case of a 9-month old infant who was referred for infectious disease opinion when his thigh induration failed to improve after surgical drainage and a course of oral antibiotic therapy. Mycobacterial PCR on the operative sample fluid was found to be positive; and mycobacterial culture grew M. tuberculosis. He received 9 months of treatment with anti-TB medications, with excellent results and complete recovery. This is the first report of TB pyomyositis in an infant; and highlights the need to have a high index of suspicion for unusual organisms when conventional therapy fails to demonstrate expected results.
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Affiliation(s)
- Za Malik
- Department of Pediatrics, The City Hospital, Dubai, United Arab Emirates
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El-Bassyouni HT, Shehab M, Kora HM, Temtamy SA. Clinical and cytogenetic study of a case with familial chromosomal translocation presenting with facial dysmorphism and axial neuropathy. Genet Couns 2012; 23:41-50. [PMID: 22611641] [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: 06/01/2023]
Abstract
We report on a 9-year-old female patient presenting with muscle weakness, facial dysmorphism and mild mental retardation. She had low birth weight, developmental delay, hypotonia and hyporeflexia and difficulties in climbing the stairs. EMG revealed axonal polyneuropathy affecting both upper and lower limbs. She was the child of non-consanguineous parents, her cytogenetic findings revealed 46,XX,t(12;14)(q14;q23). The mother's karyotype was normal 46,XX while the father's karyotype was 46,XY,t(12;14)(q14;q23) the same as his daughter. Her normal sister's karyotype was also 46,XX,t(12; 14) (q14;q23). Fluorescence in situ hybridization (FISH) was used to elucidate the breakpoints and Array-CGH was done for the patient to confirm the balanced translocation. This observation is of interest because it represents a rare case of a balanced translocation with abnormal phenotype. Mutant genes causing axonal neuropathy have been located on various chromosomes other than 12q14 or 14q24. This report shows the importance of molecular cytogenetics and its correlation with abnormal phenotype and the possibility of another gene locus at the presently studied chromosomal breakpoints. Detailed correlations between chromosome aberrations and their phenotypes are of invaluable help in localising genes for axonal polyneuropathy.
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Affiliation(s)
- H T El-Bassyouni
- Clinical Genetics Department, National Research Centre, Cairo, Egypt.
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Williams J, Baur D, Demko C, Rollins P, Quereshy H, Quereshy F, Shehab M. Poster 28: Measuring Cross Sectional Airway Surface Area Using Cone Beam Computed Technology (a Pre-Study). J Oral Maxillofac Surg 2011. [DOI: 10.1016/j.joms.2011.06.128] [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: 10/17/2022]
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Shehab M, Michalis LK, Rees MR. Balloon angioplasty optimization: should we measure balloon volume as well as pressure? Cardiovasc Intervent Radiol 2007; 31:149-57. [PMID: 17943350 DOI: 10.1007/s00270-007-9193-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2006] [Revised: 07/30/2007] [Accepted: 08/29/2007] [Indexed: 11/29/2022]
Abstract
PURPOSE To investigate the influence that measurement of balloon volume as a controlled variable in addition to balloon pressure has on the outcome of balloon angioplasty in an experimental model. METHODS One hundred and three segments of explanted normal porcine carotid arteries were obtained. Five were used as controls, and the remaining 98 were subjected to balloon angioplasty with simultaneous measurement of balloon volume and pressure. These arteries were randomized into two groups. In one group the endpoint of the angioplasty was determined by balloon pressure (pressure-limited group, PLG) and in the other group by balloon volume (volume-limited group, VLG). Pressure/volume curves for each procedure were constructed by continuous measurement of both parameters by a purpose-designed computer-controlled inflation device. The diameter of each arterial segment was measured by intravascular ultrasound (IVUS) and the ratio of the inflated balloon to arterial diameter calculated. Arterial appearances after angioplasty were recorded using IVUS. RESULTS The balloon volumes measured at the endpoint of angioplasty were significantly smaller in the PLG compared with the VLG (p < 0.001). Three types of pressure/volume curves were identified: A, B, and C. In the type A curves, IVUS identified fissures in 28% (17/60) and the examination was normal in 72% (43/60). In the type B curves, IVUS identified fissures in 44% (4/9), dissections in 22% (2/9), and the examination was normal in 33% (3/9). In the type C curves, IVUS identified fissures in 44% (4/9) and dissection in 56% (5/9) with no normal examinations. In undamaged arterial segments a very high correlation was achieved between balloon volume and the balloon/artery ratio (Pearson correlation = -0.979, R(2) = 0.957, p < 0.0001, n = 27). CONCLUSION The measurement of pressure and volume during angioplasty enabled the construction of pressure/volume curves that showed deviations from the curves obtained in air. The balloon volume results, and significant deviation of the curve shape from the control curve shape, predicted vessel damage, which was confirmed by the IVUS appearance of the vessel after angioplasty. When pressure was used as the endpoint of balloon inflation the balloons were significantly underdilated compared with the manufacturer's nominal sizes. These data indicate that monitoring of pressure and volume during angioplasty may provide an alternative method of predicting vessel damage.
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Affiliation(s)
- M Shehab
- Department of Radiology, Bristol Royal Infirmary, Level 1, Marlborough Street, Bristol BS2 8HW, UK
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Shehab M. Etiological factors of placenta previa at Rashed Ben Al-Hasen Hospital. Saudi Med J 1999; 20:128-129. [PMID: 27605297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
Full text is available as a scanned copy of the original print version.
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Affiliation(s)
- M Shehab
- Department of Obstetrics & Gynecology, Rashed Ben Al-Hasen Hospital, Irbid, Jordan
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Mohamed AZ, Saker MS, Daiem AMA, Shehab M. Effect of Phase Transformation on the Transient Creep Characteristics of Tin Base Alloys. ACTA ACUST UNITED AC 1992. [DOI: 10.1002/pssa.2211330107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Shehab M, Barakat AY. Thalassemia B with distal renal tubular acidosis: a previously undescribed association. Int J Pediatr Nephrol 1985; 6:143-4. [PMID: 4030224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An infant with beta thalassemia major and distal renal tubular acidosis is described. Screening of forty patients with beta thalassemia major revealed no evidence of renal tubular acidosis. Although the possibility of coincidence cannot be completely excluded, we suggest that beta thalassemia major should be added to the list of conditions associated with distal renal tubular acidosis.
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