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Al-Jafar R, Wahyuni NS, Belhaj K, Ersi MH, Boroghani Z, Alreshidi A, Alkhalaf Z, Elliott P, Tsilidis KK, Dehghan A. The impact of Ramadan intermittent fasting on anthropometric measurements and body composition: Evidence from LORANS study and a meta-analysis. Front Nutr 2023; 10:1082217. [PMID: 36733380 PMCID: PMC9886683 DOI: 10.3389/fnut.2023.1082217] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 01/02/2023] [Indexed: 01/18/2023] Open
Abstract
Background Although the effect of Ramadan intermittent fasting (RIF) on anthropometry and body composition has been questioned, none of the previous studies tried to explain the reported changes in these parameters. Also, systematic reviews that investigated the topic were limited to healthy individuals or a specific disease group. Methods The London Ramadan Study (LORANS) is an observational study on health effects of RIF. We measured weight, waist circumference (WC), hip circumference (HC), body mass index (BMI), waist-to-hip ratio (WHR), basal metabolic rate (BMR), fat percentage (FP), free-fat mass (FFM), extremities predicted muscle mass, total body water (TBW), trunk FM, trunk FFM and trunk predicted muscle mass before and immediately after Ramadan. Using mixed-effects regression models, we investigated the effect of RIF with adjustment for potential confounders. We also conducted a meta-analysis of the results of LORANS with other studies that investigated the effect of RIF on anthropometry and body composition. The review protocol is registered with PROSPERO registry (CRD42020186532). Results We recruited 146 participants (Mean ± SD age = 43.3 ± 15 years). Immediately after Ramadan, compared with before Ramadan, the mean difference was-1.6 kg (P<0.01) in weight,-1.95cm (P<0.01) in WC,-2.86cm (P <0.01) in HC, -0.60 kg/m2 (P < 0.01) in BMI and -1.24 kg (P < 0.01) in FM. In the systematic review and meta-analysis, after screening 2,150 titles and abstracts, 66 studies comprising 7,611 participants were included. In the general population, RIF was followed by a reduction of 1.12 Kg in body weight (-1.89- -0.36, I2 = 0), 0.74 kg/m2 reduction in BMI (-0.96- -0.53, I2 = 0), 1.54cm reduction in WC (-2.37- -0.71, I2 = 0) and 1.76cm reduction in HC (-2.69- -0.83, I2 = 0). The effect of fasting on anthropometric and body composition parameters starts to manifest in the second week of Ramadan and starts to diminish 3 weeks after Ramadan. Conclusion RIF is associated with a reduction in body weight, BMI, WC, HC, FM, FP and TBW. Most of these reductions are partially attributed to reduced FM and TBW. The reductions in these parameters appear to reverse after Ramadan.
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Affiliation(s)
- Rami Al-Jafar
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
- Department of Data Services, Lean Business Services, Riyadh, Saudi Arabia
| | - Nisa Sri Wahyuni
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
| | - Karim Belhaj
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
| | - Mohammad Hamed Ersi
- Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Zahra Boroghani
- Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
- Clinical Research Development of Shahid Mohammadi Hospital, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Amer Alreshidi
- Pharmaceutical Care Department, Hail General Hospital, Hail Health Cluster, Ministry of Health, Hail, Saudi Arabia
| | - Zahra Alkhalaf
- Dammam Medical Complex, Medical and Clinical Affairs, Dammam, Saudi Arabia
| | - Paul Elliott
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
- Dementia Research Institute at Imperial College London, London, United Kingdom
- National Institute for Health Research Imperial College Biomedical Research Centre, Imperial College London, London, United Kingdom
| | - Konstantinos K. Tsilidis
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
- Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
| | - Abbas Dehghan
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
- Dementia Research Institute at Imperial College London, London, United Kingdom
- MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, London, United Kingdom
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Rami A, Kassimi M, Habi J, Guerroum H, Sabah MSZ, Belhaj K, Mahi M. Renal artery pseudoaneurysms post percutaneous nephrolithotomy: A case report. Radiol Case Rep 2022; 17:891-893. [PMID: 35059094 PMCID: PMC8760528 DOI: 10.1016/j.radcr.2021.12.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 12/19/2021] [Indexed: 11/18/2022] Open
Abstract
Percutaneous Nephrolithotomy (PCNL) is a standard, safe and efficient method for removing large renal calculi. This pathology is associated with a risk of life-threatening Iatrogenic Renal Vascular Injuries, such as pseudoaneurysm (1%-3%). We report the case of a 49 old year male patient with Hematuria post PCNL for renal calculi. Computed tomography renal angiography was indicated which showed a pseudoaneurysm in the lower pole of the left kidney confirmed by digital subtraction angiography. Super selective endovascular embolization was successfully performed with conservation of the left-over vascularization of the kidney. No postoperative complications were seen. We aimed to report this case and to review the literature regarding endovascular management of kidney pseudoaneurysms after PCNL.
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Kassimi M, Amriss O, Guerroum H, Habi J, Belhaj K, Mahi M. Renal angiomyolipoma with renal vein extension. Radiol Case Rep 2021; 16:2325-2327. [PMID: 34194599 PMCID: PMC8237287 DOI: 10.1016/j.radcr.2021.05.056] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 05/22/2021] [Accepted: 05/23/2021] [Indexed: 11/03/2022] Open
Abstract
Renal angiomyolipomas are uncommon benign tumors containing fatty tissue. Only a few cases of infiltrating angiomyolipomas have been reported. We aimed to describe a case of a 65-year-old woman presenting a peripheral angiomyolipoma of the left kidney with CT evidence of involvement of the renal vein. The lesion has been found incidentally during abdominal CT for an unrelated reason. The patient underwent surgical treatment considering the vascular extension of the lesion and the risk of thromboembolic complications. The pathological analysis confirmed the diagnosis of renal AML in the upper pole of the left kidney invading the renal vein without malignancy.No post-operative complications and the evolution was favorable.
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Affiliation(s)
- Mariam Kassimi
- Department of Radiology, Mohammed VI University of Health Sciences/Cheikh Khalifa International University Hospital, Casablanca, Morocco
| | - Omar Amriss
- Department Radiology , Ibn Rochd of Casablanca University, Casablanca, Morocco
| | - Hind Guerroum
- Department of Radiology, Mohammed VI University of Health Sciences/Cheikh Khalifa International University Hospital, Casablanca, Morocco
| | - Jihane Habi
- Department of Radiology, Mohammed VI University of Health Sciences/Cheikh Khalifa International University Hospital, Casablanca, Morocco
| | - Karim Belhaj
- Department of Urology, Mohammed VI University of Health Sciences/Cheikh Khalifa International University Hospital, Casablanca, Morocco
| | - Mohamed Mahi
- Department of Radiology, Mohammed VI University of Health Sciences/Cheikh Khalifa International University Hospital, Casablanca, Morocco
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Mohamed TI, Baqal OJ, Binzaid AA, Belhaj K, Ahmad JTH, AlHennawi HT, Ishkare MH, Alashqar M, Alruwaili N, Al-Sergani H, Dahdouh Z. Outcomes of Routine Coronary Angiography in Asymptomatic Patients With End-Stage Renal Disease Prior to Kidney Transplantation. Angiology 2020; 71:721-725. [DOI: 10.1177/0003319720927239] [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: 01/05/2023]
Abstract
We report the prevalence of coronary artery disease (CAD) in asymptomatic patients with end-stage kidney disease (ESKD) on hemodialysis and explore the best revascularization strategies prior to kidney transplantation. This is a retrospective single-center study, which included all patients who were candidates for kidney transplantation and underwent coronary angiography between 2003 and 2018. All included patients underwent coronary angiography without noninvasive testing and were asymptomatic cardiac-wise. Out of the 368 patients with ESRD, 45% had coronary vessel disease, 17% had 3-vessel disease, 11% had 2-vessel disease, 5.2% had significant left main artery narrowing, and 17% had single-vessel disease. Patients with 3-vessel disease had the worst survival rate at 5 and 10 years. The patients with significant 3-vessel disease or left main artery involvement underwent revascularization; 19% underwent coronary artery bypass grafting, 5% had stenting of the coronary arteries, and 4.7% were on maximal medical therapy. The patients who underwent stenting had a better survival than those on medical therapy, but the difference was not significant ( P = .445). Our findings reflect a high prevalence of CAD in patients with ESKD. There is a need for further studies to evaluate benefits of cardiovascular screening in this patient population.
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Affiliation(s)
- Tahir I. Mohamed
- Heart Center Department, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
- Department of Medicine, Wayne State University, Detroit, MI, USA
| | - Omar J. Baqal
- Alfaisal University College of Medicine, Riyadh, Kingdom of Saudi Arabia
| | - Abdulaziz A. Binzaid
- Heart Center Department, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Karim Belhaj
- Alfaisal University College of Medicine, Riyadh, Kingdom of Saudi Arabia
| | - Janti T. Haj Ahmad
- Alfaisal University College of Medicine, Riyadh, Kingdom of Saudi Arabia
| | | | - Maen H. Ishkare
- Alfaisal University College of Medicine, Riyadh, Kingdom of Saudi Arabia
| | - Mais Alashqar
- Alfaisal University College of Medicine, Riyadh, Kingdom of Saudi Arabia
| | - Nadiah Alruwaili
- Heart Center Department, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Hani Al-Sergani
- Heart Center Department, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Ziad Dahdouh
- Heart Center Department, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
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Raveendran VV, Al-Haffar K, Kunhi M, Belhaj K, Al-Habeeb W, Al-Buraiki J, Eyjolsson A, Poizat C. Protein arginine methyltransferase 6 mediates cardiac hypertrophy by differential regulation of histone H3 arginine methylation. Heliyon 2020; 6:e03864. [PMID: 32420474 PMCID: PMC7218648 DOI: 10.1016/j.heliyon.2020.e03864] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 01/14/2020] [Revised: 04/02/2020] [Accepted: 04/22/2020] [Indexed: 12/11/2022] Open
Abstract
Heart failure remains a major cause of hospitalization and death worldwide. Heart failure can be caused by abnormalities in the epigenome resulting from dysregulation of histone-modifying enzymes. While chromatin enzymes catalyzing lysine acetylation and methylation of histones have been the topic of many investigations, the role of arginine methyltransferases has been overlooked. In an effort to understand regulatory mechanisms implicated in cardiac hypertrophy and heart failure, we assessed the expression of protein arginine methyltransferases (PRMTs) in the left ventricle of failing human hearts and control hearts. Our results show a significant up-regulation of protein arginine methyltransferase 6 (PRMT6) in failing human hearts compared to control hearts, which also occurs in the early phase of cardiac hypertrophy in mouse hearts subjected to pressure overload hypertrophy induced by trans-aortic constriction (TAC), and in neonatal rat ventricular myocytes (NRVM) stimulated with the hypertrophic agonist phenylephrine (PE). These changes are associated with a significant increase in arginine 2 asymmetric methylation of histone H3 (H3R2Me2a) and reduced lysine 4 tri-methylation of H3 (H3K4Me3) observed both in NRVM and in vivo. Importantly, forced expression of PRMT6 in NRVM enhances the expression of the hypertrophic marker, atrial natriuretic peptide (ANP). Conversely, specific silencing of PRMT6 reduces ANP protein expression and cell size, indicating that PRMT6 is critical for the PE-mediated hypertrophic response. Silencing of PRMT6 reduces H3R2Me2a, a mark normally associated with transcriptional repression. Furthermore, evaluation of cardiac contractility and global ion channel activity in live NRVM shows a striking reduction of spontaneous beating rates and prolongation of extra-cellular field potentials in cells expressing low-level PRMT6. Altogether, our results indicate that PRMT6 is a critical regulator of cardiac hypertrophy, implicating H3R2Me2a as an important histone modification. This study identifies PRMT6 as a new epigenetic regulator and suggests a new point of control in chromatin to inhibit pathological cardiac remodeling.
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Affiliation(s)
- Vineesh Vimala Raveendran
- Cardiovascular Research Program, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Kamar Al-Haffar
- Cardiovascular Research Program, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Muhammed Kunhi
- Cardiovascular Research Program, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Karim Belhaj
- College of Medicine, Al Faisal University, PO Box 50927, Riyadh 11211, Saudi Arabia
| | | | | | - Atli Eyjolsson
- Heart Centre, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Coralie Poizat
- Cardiovascular Research Program, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.,Masonic Medical Research Institute, Utica, NY 13501, USA
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Mohamed TI, Binzaid AA, Almasood A, Baqal OJ, Dahdouh Z, Belhaj K, Alhennawi HT, Al Buraiki JA, Al-Sergani HS. Transcatheter mitral valve-in-valve implantation for failed bioprosthesis. Turk Kardiyol Dern Ars 2020; 49:22-28. [PMID: 33390572 DOI: 10.5543/tkda.2020.07893] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE This study is a report of clinical and echocardiographic outcomes of experience with transapical mitral valve-in-valve (VIV) replacement. METHODS Eleven patients with a mean age of 63.7±13.0 years who underwent transapical mitral VIV implantation for a failed bioprosthesis at a single institution were enrolled. All of the patients were considered high-risk for surgical intervention, with a Society of Thoracic Surgery predicted risk of mortality of 14.2±17.6%, and a mean European System for Cardiac Operative Risk Evaluation (EuroSCORE II) of 10.5±6.1%. RESULTS Transapical mitral VIV implantation was successful in all of the patients. Edwards, Sapien XT and Sapien 3 valves (Edwards Lifesciences Corp., Irvine, CA, USA) were used in 8 (73%), 2 (18%), and 1 (9%) patients, respectively. Size 26 valves were used in 6 (55%) patients while size 29 valves were used in 5 (45%) patients. All of the patients (11, 100%) had no or only trace mitral regurgitation at the end of the procedure. The mean length of hospital stay was 19±8.0 days. The survival was 100% at 14 days, and 90% at 30 days and at 4 years. One patient died as a result of multiorgan failure on day 16 of intensive care unit stay. The mean mitral valve gradient across the percutaneous valve was 2.26±1.047 mmHg, and the mean valve area was 2.20±0.14 cm2. Through the 4 years follow up, the New York Heart Association class of the 10 patients remaining improved to class II with no readmission for heart failure. All of the patients were on coumadin with a target international normalized ratio of 2-3. CONCLUSION In high-risk patients, transapical mitral VIV implantation can be performed with a high success rate and considerable improvement in clinical status.
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Affiliation(s)
- Tahir I Mohamed
- Department of Heart Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Abdulaziz A Binzaid
- Department of Heart Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Ali Almasood
- Department of Heart Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Omar J Baqal
- Department of Cardiology, Alfaisal University College of Medicine, Riyadh, Saudi Arabia
| | - Ziad Dahdouh
- Department of Heart Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Karim Belhaj
- Department of Cardiology, Alfaisal University College of Medicine, Riyadh, Saudi Arabia
| | | | - Jehad A Al Buraiki
- Department of Heart Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Hani S Al-Sergani
- Department of Heart Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
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Abstract
More than any other organ, the heart is particularly sensitive to gene expression deregulation, often leading in the long run to impaired contractile performances and excessive fibrosis deposition progressing to heart failure. Recent investigations provide evidences that the protein phosphatases (PPs), as their counterpart protein kinases, are important regulators of cardiac physiology and development. Two main groups, the protein serine/threonine phosphatases and the protein tyrosine phosphatases (PTPs), constitute the PPs family. Here, we provide an overview of the role of PTP subfamily in the development of the heart and in cardiac pathophysiology. Based on recent in silico studies, we highlight the importance of PTPs as therapeutic targets for the development of new drugs to restore PTPs signaling in the early and late events of heart failure.
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Affiliation(s)
- Fallou Wade
- Cardiovascular Research Program, King Faisal Specialist Hospital and Research Centre, PO Box 3354, Riyadh, 11211, Saudi Arabia
| | - Karim Belhaj
- College of Medicine and Health Sciences, Al-Faisal University, Riyadh, 11211, Saudi Arabia
| | - Coralie Poizat
- Cardiovascular Research Program, King Faisal Specialist Hospital and Research Centre, PO Box 3354, Riyadh, 11211, Saudi Arabia. .,Biology Department, San Diego State University, San Diego, CA, 92182, USA.
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Belhaj K, El Hyaoui H, Tahir A, Meftah S, Mahir L, Rafaoui A, Lmidmani F, Arsi M, Rahmi M, Rafai M, Garch A, Fadili M, Nechad M, El Fatimi A. Long-term functional outcomes after primary surgical repair of acute and chronic patellar tendon rupture: Series of 25 patients. Ann Phys Rehabil Med 2016; 60:244-248. [PMID: 27894876 DOI: 10.1016/j.rehab.2016.10.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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: 01/04/2016] [Revised: 05/29/2016] [Accepted: 10/03/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE We aimed to evaluate the clinical outcomes after surgical repair of patellar tendon rupture (PTR) and compare the evolution of 2 types of rupture (acute and chronic) after the same rehabilitation protocol. METHODS This was a prospective cohort study of patients with PTR treated between January 2006 and January 2014 in the department of trauma surgery, Ibn Rochd university hospital, Casablanca. RESULTS We evaluated 25 patients (21 men) after a median follow-up of 75 months (range 29-120). The mean age was 34.7±8.59 years. Overall, 17 patients had acute rupture and 8 chronic rupture. Fifteen healthy volunteers (13 men) were recruited as a control group. Mean Knee Society Score (KSS) knee score was significantly higher after than before surgery (82.28±12.297 vs 20.64±7.6; P<0.0001) as was KSS function score (88.40±17.483 vs 23.40±8.98; P<0.0001). Pain measured on a visual analog scale was significantly lower after than before surgery (1.96±1.24 vs 6.60±1.26; P<0.0001). ROM and KSS knee and function scores were significantly lower on the operated than non-operated side after surgery. For both types of PTR, only knee extensor muscle strength was significantly lower on the operated than non-operated side and as compared with healthy volunteer knees. CONCLUSIONS Surgical repair of PTR with reinforcement and an early rehabilitation program demonstrate good results after a long follow-up. However, chronic PTR may need longer or a different rehabilitation protocol of the knee-extensor apparatus.
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Affiliation(s)
- K Belhaj
- Department of physical medicine and rehabilitation, Ibn Rochd university hospital, Casablanca, Morocco.
| | - H El Hyaoui
- Department of orthopedics and traumatology (P32), Ibn Rochd university hospital, Casablanca, Morocco
| | - A Tahir
- Department of orthopedics and traumatology (P4), Ibn Rochd university hospital, Casablanca, Morocco
| | - S Meftah
- Department of physical medicine and rehabilitation, Ibn Rochd university hospital, Casablanca, Morocco
| | - L Mahir
- Department of physical medicine and rehabilitation, Ibn Rochd university hospital, Casablanca, Morocco
| | - A Rafaoui
- Department of orthopedics and traumatology (P32), Ibn Rochd university hospital, Casablanca, Morocco
| | - F Lmidmani
- Department of physical medicine and rehabilitation, Ibn Rochd university hospital, Casablanca, Morocco
| | - M Arsi
- Department of orthopedics and traumatology (P32), Ibn Rochd university hospital, Casablanca, Morocco
| | - M Rahmi
- Department of orthopedics and traumatology (P32), Ibn Rochd university hospital, Casablanca, Morocco
| | - M Rafai
- Department of orthopedics and traumatology (P32), Ibn Rochd university hospital, Casablanca, Morocco
| | - A Garch
- Department of orthopedics and traumatology (P32), Ibn Rochd university hospital, Casablanca, Morocco
| | - M Fadili
- Department of orthopedics and traumatology (P4), Ibn Rochd university hospital, Casablanca, Morocco
| | - M Nechad
- Department of orthopedics and traumatology (P4), Ibn Rochd university hospital, Casablanca, Morocco
| | - A El Fatimi
- Department of physical medicine and rehabilitation, Ibn Rochd university hospital, Casablanca, Morocco
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Belhaj K, Meftah S, Mahir L, Lmidmani F, Elfatimi A. Isokinetic imbalance of adductor–abductor hip muscles in professional soccer players with chronic adductor-related groin pain. Eur J Sport Sci 2016; 16:1226-31. [DOI: 10.1080/17461391.2016.1164248] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Belhaj K, Meftah S, Nait Khachat A, Lmidmani F, El Fatimi A. Functional outcomes after surgical repair of acute and chronic patellar tendon ruptures. Ann Phys Rehabil Med 2015. [DOI: 10.1016/j.rehab.2015.07.101] [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: 10/23/2022]
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11
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Wade F, Quijada P, Al-Haffar KMA, Awad SM, Kunhi M, Toko H, Marashly Q, Belhaj K, Zahid I, Al-Mohanna F, Stanford SM, Alvarez R, Liu Y, Colak D, Jordan MC, Roos KP, Assiri A, Al-Habeeb W, Sussman M, Bottini N, Poizat C. Deletion of low molecular weight protein tyrosine phosphatase (Acp1) protects against stress-induced cardiomyopathy. J Pathol 2015. [PMID: 26213100 PMCID: PMC5049627 DOI: 10.1002/path.4594] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 11/08/2022]
Abstract
The low molecular weight protein tyrosine phosphatase (LMPTP), encoded by the ACP1 gene, is a ubiquitously expressed phosphatase whose in vivo function in the heart and in cardiac diseases remains unknown. To investigate the in vivo role of LMPTP in cardiac function, we generated mice with genetic inactivation of the Acp1 locus and studied their response to long‐term pressure overload. Acp1−/− mice develop normally and ageing mice do not show pathology in major tissues under basal conditions. However, Acp1−/− mice are strikingly resistant to pressure overload hypertrophy and heart failure. Lmptp expression is high in the embryonic mouse heart, decreased in the postnatal stage, and increased in the adult mouse failing heart. We also show that LMPTP expression increases in end‐stage heart failure in humans. Consistent with their protected phenotype, Acp1−/− mice subjected to pressure overload hypertrophy have attenuated fibrosis and decreased expression of fibrotic genes. Transcriptional profiling and analysis of molecular signalling show that the resistance of Acp1−/− mice to pathological cardiac stress correlates with marginal re‐expression of fetal cardiac genes, increased insulin receptor beta phosphorylation, as well as PKA and ephrin receptor expression, and inactivation of the CaMKIIδ pathway. Our data show that ablation of Lmptp inhibits pathological cardiac remodelling and suggest that inhibition of LMPTP may be of therapeutic relevance for the treatment of human heart failure. © 2015 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Fallou Wade
- Cardiovascular Research Program, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Pearl Quijada
- San Diego State University, Department of Biology, 5500 Campanile Drive, San Diego, CA, USA
| | | | - Salma Mahmoud Awad
- Cardiovascular Research Program, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Muhammad Kunhi
- Cardiovascular Research Program, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Haruhiro Toko
- San Diego State University, Department of Biology, 5500 Campanile Drive, San Diego, CA, USA
| | - Qussay Marashly
- College of Medicine and Health Sciences, Al-Faisal University, Riyadh, Saudi Arabia
| | - Karim Belhaj
- College of Medicine and Health Sciences, Al-Faisal University, Riyadh, Saudi Arabia
| | - Israa Zahid
- Cardiovascular Research Program, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Falah Al-Mohanna
- Department of Comparative Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Stephanie M Stanford
- Division of Cellular Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, USA
| | - Roberto Alvarez
- San Diego State University, Department of Biology, 5500 Campanile Drive, San Diego, CA, USA
| | - Yingge Liu
- USC Institute for Genetic Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | - Dilek Colak
- Department of Biostatistics and Scientific Computing, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Maria C Jordan
- Department of Physiology, David Geffen School of Medicine at UCLA, 10833 LeConte Avenue, Los Angeles, CA, USA
| | - Kenneth P Roos
- Department of Physiology, David Geffen School of Medicine at UCLA, 10833 LeConte Avenue, Los Angeles, CA, USA
| | - Abdullah Assiri
- Department of Comparative Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | | | - Mark Sussman
- San Diego State University, Department of Biology, 5500 Campanile Drive, San Diego, CA, USA
| | - Nunzio Bottini
- Division of Cellular Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, USA.,USC Institute for Genetic Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | - Coralie Poizat
- Cardiovascular Research Program, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.,San Diego State University, Department of Biology, 5500 Campanile Drive, San Diego, CA, USA
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Belhaj K, Mahir L, Meftah S, Lmidmani F, El Fatimi A. Isokinetic muscle strength of the knee in knee OA subjects, the general public and professional athletes: Comparative and analytical study. Ann Phys Rehabil Med 2015. [DOI: 10.1016/j.rehab.2015.07.385] [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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Belhaj K, Nait Khachat A, Meftah S, Lmidmani F, El Fatimi A. Rupture of the pectoralis major muscle; exceptionally traumatic pathology: About a case report and literature review. Ann Phys Rehabil Med 2015. [DOI: 10.1016/j.rehab.2015.07.165] [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: 11/24/2022]
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El Hyaoui H, Abouali H, Ait Lahssen H, Rafaoui A, Messoudi A, Rafai M, Garch A, Belhaj K, El Amrani N, Nait Khchat A, Lmidmani F, El Fatimi A. Neglected ruptures of the patellar tendon: About 24 cases. Ann Phys Rehabil Med 2015. [DOI: 10.1016/j.rehab.2015.07.100] [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: 11/25/2022]
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15
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Belhaj K, Tchounda E, Nait Khachat A, Lmidmani F, El Fatimi A. Linear morphea of children: Rehabilitation treatment and equipment taken through a case report and review of literature. Ann Phys Rehabil Med 2015. [DOI: 10.1016/j.rehab.2015.07.332] [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: 10/23/2022]
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Riah L, Belhaj K, Lmidmani F, El Fatimi A, El Kettani Y, El Ayoubi M, Rabii R, Meziane F, El Atiqi F, Sbai H. [Urodynamic profile of voiding disorders persisting after treatment of posterior urethral valve]. Prog Urol 2014; 25:217-23. [PMID: 25450753 DOI: 10.1016/j.purol.2014.09.041] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 08/23/2014] [Accepted: 09/12/2014] [Indexed: 10/24/2022]
Abstract
PURPOSE Posterior urethral valves (PUV) are the most common cause of bladder outlet obstruction in infancy that impairs renal and bladder function. MATERIAL AND METHODS We realize a retrospective study and examined 35 boys with urinary disorders post-treatment of PUV, seen at the urodynamic consultation. RESULTS The mean age: 7.56 years, urinary problems are dominated by recurrent urinary tract infections and urinary leakage, morphological assessment is marked by the constant expansion of the urinary tract and bladder, 18 children have end-stage renal disease of which 8 are candidates for transplantation. About urodynamic, the uroflowmetry with measure of post-void urine residue: dysuria with significant residual urine in 14 children; for cystometry, 20 children with bladder hyperactivity, 9 bladders are hypotonic hypoactive with high capacity, 6 explorations are normal. CONCLUSION Urodynamic explorations are all interest when voiding symptoms persist after endoscopic section valves and despite a good radiological result.
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Affiliation(s)
- L Riah
- Service de médecine physique et de réadaptation fonctionnelle, CHU Ibn Rochd, Casablanca, Maroc.
| | - K Belhaj
- Service de médecine physique et de réadaptation fonctionnelle, CHU Ibn Rochd, Casablanca, Maroc
| | - F Lmidmani
- Service de médecine physique et de réadaptation fonctionnelle, CHU Ibn Rochd, Casablanca, Maroc
| | - A El Fatimi
- Service de médecine physique et de réadaptation fonctionnelle, CHU Ibn Rochd, Casablanca, Maroc
| | - Y El Kettani
- Service d'urologie, CHU Ibn Rochd, Casablanca, Maroc
| | - M El Ayoubi
- Service d'urologie, CHU Ibn Rochd, Casablanca, Maroc
| | - R Rabii
- Service d'urologie, CHU Ibn Rochd, Casablanca, Maroc
| | - F Meziane
- Service d'urologie, CHU Ibn Rochd, Casablanca, Maroc
| | - F El Atiqi
- Service de chirurgie pédiatrique, hôpital d'enfants, Casablanca, Maroc
| | - H Sbai
- Service de chirurgie pédiatrique, hôpital d'enfants, Casablanca, Maroc
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El Hyaoui H, Toua T, El Koumiti N, Moustamsik B, Messoudi A, Hassoun J, Arssi M, Garch A, Belhaj K, Kassimi E, Lmidmani F, Elfatimi A. Results of arthroscopic treatment of anterolateral soft tissue impingement of the ankle in athletes: A series of 22 cases. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.1018] [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: 10/25/2022]
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Belhaj K, Meftah S, Lahrabli S, Mahir L, Lmidmani F, El Fatimi A. Osgood-Schlatter and patellar instability: Fortuitous association or complication? Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.998] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Lahrabli S, Meftah S, Belhaj K, Lmidmani F, Fatimi AE. Prise en prise en charge des douleurs de l’épaule après traitement du cancer de sein : expérience du service de médecine physique et de réadaptation au Maroc. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.742] [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: 11/29/2022]
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Belhaj K, El Hiyaoui H, Mahir L, Addy Lolla B, Garch A, Lmidmani F, El Fatimi A. Isokinetic rehabilitation: Experience of physical medicine and rehabilitation university hospital Casablanca. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.1005] [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: 10/25/2022]
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21
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Belhaj K, Meftah S, Lahrabli S, Mahir L, Lmidmani F, El Fatimi A. Maladie d’Osgood-Schlatter et instabilité rotulienne : association fortuite ou complication ? Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.1046] [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: 11/27/2022]
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22
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El Hyaoui H, Toua T, El Koumiti N, Chahrane Y, Messoudi A, Fnini S, Garch A, Belhaj K, Kassimi E, Lmidmani F, Elfatimi A. Résultats fonctionnels du traitement du syndrome de Volkmann : une série de 19 cas. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.749] [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: 11/30/2022]
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Lahrabli S, Meftah S, Belhaj K, Lmidmani F, El Fatimi A. Treatment of shoulder pain after treatment of breast cancer: Experience of Moroccan department of physical medicine and rehabilitation. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.677] [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: 11/25/2022]
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Lahrabli S, Belhaj K, Meftah S, Lmidmani F, El Fatimi A. Évaluation algofonctionnel chez des patients gonarthrosiques traités par rééducation. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.743] [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: 10/25/2022]
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25
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El Hyaoui H, Toua T, El Koumiti N, Moustamsik B, Messoudi A, Hassoun J, Arssi M, Garch A, Belhaj K, Kassimi E, Lmidmani F, Elfatimi A. Résultats du traitement arthroscopique des conflits tissulaires antérolatérales de la cheville chez les sportifs : une série de 22 cas. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.1058] [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: 11/26/2022]
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26
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Belhaj K, Mahir L, Addy Lolla B, Lahrabli S, Kassimi E, Lmidmani F, El Fatimi A, El Hiyaoui H, Arsi M, Garch A. Meniscal lesions and isokinetic evaluation: About 8 cases. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.990] [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: 11/25/2022]
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Nait Khachat A, Belhaj K, Diagne N, El Amrani N, Lmidmani F, El Fatimi A. Paraostéoarthropathies dans le syndrome de Guillain-Barré : localisation rare. À propos d’un cas et revue de la littérature. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.754] [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: 10/25/2022]
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Hyaoui HE, Filali R, Moustamsik B, Toua T, Messoudi A, Fnini S, Garch A, Belhaj K, Kassimi E, Lmidmani F, Elfatimi A. Rupture bilatérale simultanée du tendon patellaire : à propos d’un cas. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.755] [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: 11/24/2022]
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29
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El Hyaoui H, El Koumiti N, Toua T, Messoudi A, Arssi M, Hassoun J, Garch A, Kassimi E, Belhaj K, Lmidmani F, Elfatimi A. Functional outcome of surgical correction of spastic equino-varus foot deformity in adults: About 5 cases. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.348] [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: 10/25/2022]
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El Hyaoui H, El Koumiti N, Toua T, Messoudi A, Arssi M, Hassoun J, Garch A, Kassimi E, Belhaj K, Lmidmani F, Elfatimi A. Résultats fonctionnels de la correction chirurgicale du pied varus équin spastique chez l’adulte : à propos de 5 cas. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.395] [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: 10/25/2022]
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31
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Belhaj K, Addy Lolla B, Mahir L, Meftah S, Lmidmani F, El Fatimi A, El Hiyaoui H, Arsi M, Garch A. Isokinetic profile in the pathologies of the knee: Experience of physical medicine of Casablanca. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.991] [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: 11/25/2022]
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32
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Adnane C, Belhaj K, Oubahmane T, Adouly T, Lmidmani F, El Fatimi A, Kadiri F. Syndrome d’Eagle une forme rare d’algie cervico-faciale : à propos d’un cas et revue de littérature. Rev Neurol (Paris) 2014. [DOI: 10.1016/j.neurol.2014.01.103] [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: 11/30/2022]
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Belhaj K, Abdelfattah Y, Khadir A, Lahrabli S, Meftah S, Lmidmani F, El Fatimi A. Functional results of surgery neurogenic heterotopic ossification in patients with severe traumatic brain injury: About 19 cases. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1067] [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: 11/26/2022]
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Belhaj K, Abdelfattah Y, Khadir A, Kassimi E, Lmidmani F, El Fatimi A. Résultats fonctionnels après chirurgie des paraostéoarthropathies neurogènes chez les traumatisés crâniens graves : à propos de 19 cas. Ann Phys Rehabil Med 2013. [DOI: 10.1016/j.rehab.2013.07.1033] [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: 11/15/2022]
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35
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Belhaj K, Khadir A, Meftah S, Abdelfattah Y, Lmidmani F, El Fatimi A. Chirurgie fonctionnelle des ossifications hétérotopiques : à propos de 22 cas. Ann Phys Rehabil Med 2013. [DOI: 10.1016/j.rehab.2013.07.1026] [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: 10/26/2022]
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36
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Belhaj K, Khadir A, Meftah S, Abdelfattah Y, Lahrabli S, Lmidmani F, El Fatimi A. Functional outcomes after surgery for heterotopic ossifications: 22 cases. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1917] [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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37
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Khachat AN, Belhaj K, Diagne N, El Amrani N, Kassimi H, Lmidmani F, El Fatimi A. Functional outcomes after rehabilitation of tuberculous myelitis 14 case reports/INS;. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.2431] [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: 11/28/2022]
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38
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Belhaj K, Khadir A, Lahrabli S, Abdelfattah Y, Lmidmani F, El Fatimi A. Functional results of surgery neurogenic heterotopic ossification at the elbow cerebro injured: About nine cases. Ann Phys Rehabil Med 2013. [DOI: 10.1016/j.rehab.2013.07.1041] [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: 10/26/2022]
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39
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Kassimi E, Abdelfettah Y, Naitkhchat A, Belhaj K, Lmidmani F, Elfatimi A. Troubles statiques des pieds en podoscopie optique et électronique au service de MPR CHU Casablanca : à propos de 53 cas. Ann Phys Rehabil Med 2013. [DOI: 10.1016/j.rehab.2013.07.187] [Citation(s) in RCA: 1] [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: 10/26/2022]
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40
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Diagne N, Belhaj K, Khachat AN, Khadir A, Lahrabli S, Lmidmani F, El Fatimi A. Neurological bladders disorders: Clinical and urodynamic aspects. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1922] [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: 11/28/2022]
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41
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Win J, Chaparro-Garcia A, Belhaj K, Saunders DGO, Yoshida K, Dong S, Schornack S, Zipfel C, Robatzek S, Hogenhout SA, Kamoun S. Effector biology of plant-associated organisms: concepts and perspectives. Cold Spring Harb Symp Quant Biol 2012; 77:235-47. [PMID: 23223409 DOI: 10.1101/sqb.2012.77.015933] [Citation(s) in RCA: 281] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Every plant is closely associated with a variety of living organisms. Therefore, deciphering how plants interact with mutualistic and parasitic organisms is essential for a comprehensive understanding of the biology of plants. The field of plant-biotic interactions has recently coalesced around an integrated model. Major classes of molecular players both from plants and their associated organisms have been revealed. These include cell surface and intracellular immune receptors of plants as well as apoplastic and host-cell-translocated (cytoplasmic) effectors of the invading organism. This article focuses on effectors, molecules secreted by plant-associated organisms that alter plant processes. Effectors have emerged as a central class of molecules in our integrated view of plant-microbe interactions. Their study has significantly contributed to advancing our knowledge of plant hormones, plant development, plant receptors, and epigenetics. Many pathogen effectors are extraordinary examples of biological innovation; they include some of the most remarkable proteins known to function inside plant cells. Here, we review some of the key concepts that have emerged from the study of the effectors of plant-associated organisms. In particular, we focus on how effectors function in plant tissues and discuss future perspectives in the field of effector biology.
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Affiliation(s)
- J Win
- The Sainsbury Laboratory, Norwich Research Park, Norwich, NR4 7UH United Kingdom
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Derouiche A, Belhaj K, Garbouj N, Hentati H, Ben Slama M, Chebil M. L’approche lomboscopique dans le traitement des calculs urétéraux lombaires. Prog Urol 2008; 18:281-7. [DOI: 10.1016/j.purol.2008.03.027] [Citation(s) in RCA: 4] [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] [Received: 03/01/2007] [Accepted: 03/19/2008] [Indexed: 10/22/2022]
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Abstract
INTRODUCTION Ureterocele is a congenital malformation that is rarely diagnosed in adults. Treatment is indicated for complicated or symptomatic forms, but has not been clearly standardized. The objective of this study was to evaluate the results of endoscopic meatotomy according to the Rodriguez technique. MATERIAL AND METHOD Retrospective study of 26 adult patients with ureterocele treated between Jan uarv 1987 and December 2004. RESULTS The mean age of this population was 41 years and the sex ratio was 1.7/3. Thirty-two intravesical ureteroceles were diagnosed, six of which were bilateral. Eighteen ureteroceles were complicated by in situ stones, nine were complicated by moderate proximal dilatation and three presented both complications. Two ureteroceles were asymptomatic and uncomplicated, justifying conservative management. Endoscopic treatment was performed in 30 cases and consisted of a curved meatotomy with concomitant treatment of stones, when present. No operative incidents were recorded and the postoperative course was uneventful. Clinical and radiological improvement was obtained in 23 of the patients reviewed. Two of the 12 patients assessed by retrograde cystourethrography presented grade I vesicoureteric relux that had resolved at 6 months. No case of meatal stenosis was observed. CONCLUSION Endoscopic meatotomy appears to be the treatment of choice for complicated or symptomatic ureterocele in adults. It is a minimally invasive, easy, reproducible and effective technique.
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Abstract
The combination of lesions of the penile urethra and the corpus cavernosum is rare and likely to go unremarked. It worsens the immediate and long-term prognosis and poses a problem of management. Among 312 cases of penile fracture, we performed a retrospective study of a series of 10-case of traumatic corpora cavernosa rupture complicated with urethral rupture, treated in the department of Urology at 'Charles Nicolle' Hospital in Tunis. The median patients' age was 30 years. The most common mechanism was manipulation of an erect penis, found in six cases. Urethral rupture was suspected in all patients given the presence of bloody urethral discharge. No preoperative radiographic investigations were necessary. All patients underwent immediate surgical exploration. The urethral injury was always partial and localized at the level of the corpora tear. Surgical repair of both urethral and corpora tear was done in all patients. The follow up was uneventful. Urethrography at the removal of the transurethral catheter did not visualize contrast extravasation in any patient. No urethral stricture or erectile complaints were noted within a 36-month mean follow-up. Urethral rupture must be suspected in any case of penile fracture presenting with bloody urethral discharge. Standard treatment is immediate surgical repair.
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Affiliation(s)
- A Derouiche
- Department of Urology, Charles Nicolle Hospital, Tunis, Tunis, Tunisia.
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Abstract
We determined the value of diagnostic and therapeutic approaches of false penile fractures and the outcome of treatment. We retrospectively reviewed 16 cases of presumed penile fracture with a negative surgical exploration. Clinical presentation, technique of treatment and outcome were noted. The mean age was 39 years (17-64). Nine patients were injured during sexual intercourse. All the patients presented with the presumptive diagnosis of penile fracture. False penile fracture was evoked in one patient presenting a new erection. Surgical penile exploration was carried out for all the patients without any radiological explorations. It revealed nonspecific dartos bleeding in 10 cases and avulsed superficial dorsal vein in six cases requiring venous ends ligation. All the patients regained penile appearance and potency. We can hardly distinguish false penile fracture from 'true' penile fracture with certainty either clinically or radiologically, thus, surgical exploration is mostly necessary. The prognosis is excellent.
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Affiliation(s)
- W Feki
- Department of Urology, Charles Nicolle Hospital, Tunis, Tunisia.
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