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Tatarenko Y, Li M, Pouletaut P, Kammoun M, Hawse JR, Joumaa V, Herzog W, Chatelin S, Bensamoun SF. Multiscale analysis of Klf10's impact on the passive mechanical properties of murine skeletal muscle. J Mech Behav Biomed Mater 2024; 150:106298. [PMID: 38096609 DOI: 10.1016/j.jmbbm.2023.106298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 09/19/2023] [Accepted: 12/02/2023] [Indexed: 01/09/2024]
Abstract
Skeletal muscle is a hierarchical structure composed of multiple organizational scales. A major challenge in the biomechanical evaluation of muscle relates to the difficulty in evaluating the experimental mechanical properties at the different organizational levels of the same tissue. Indeed, the ability to integrate mechanical properties evaluated at various levels will allow for improved assessment of the entire tissue, leading to a better understanding of how changes at each level evolve over time and/or impact tissue function, especially in the case of muscle diseases. Therefore, the purpose of this study was to analyze a genetically engineered mouse model (Klf10 KO: Krüppel-Like Factor 10 knockout) with known skeletal muscle defects to compare the mechanical properties with wild-type (WT) controls at the three main muscle scales: the macroscopic (whole muscle), microscopic (fiber) and submicron (myofibril) levels. Passive mechanical tests (ramp, relaxation) were performed on two types of skeletal muscle (soleus and extensor digitorum longus (EDL)). Results of the present study revealed muscle-type specific behaviors in both genotypes only at the microscopic scale. Interestingly, loss of Klf10 expression resulted in increased passive properties in the soleus but decreased passive properties in the EDL compared to WT controls. At the submicron scale, no changes were observed between WT and Klf10 KO myofibrils for either muscle; these results demonstrate that the passive property differences observed at the microscopic scale (fiber) are not caused by sarcomere intrinsic alterations but instead must originate outside the sarcomeres, likely in the collagen-based extracellular matrix. The macroscopic scale revealed similar passive mechanical properties between WT and Klf10 KO hindlimb muscles. The present study has allowed for a better understanding of the role of Klf10 on the passive mechanical properties of skeletal muscle and has provided reference data to the literature which could be used by the community for muscle multiscale modeling.
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Affiliation(s)
- Y Tatarenko
- Sorbonne University, Université de Technologie de Compiègne, CNRS UMR 7338, Biomechanics and Bioengineering, Compiègne, France; ICube, CNRS UMR 7357, University of Strasbourg, Strasbourg, France
| | - M Li
- University of Calgary, Faculty of Kinesiology, Human Performance Laboratory, Calgary, Alberta, Canada
| | - P Pouletaut
- Sorbonne University, Université de Technologie de Compiègne, CNRS UMR 7338, Biomechanics and Bioengineering, Compiègne, France
| | - M Kammoun
- Sorbonne University, Université de Technologie de Compiègne, CNRS UMR 7338, Biomechanics and Bioengineering, Compiègne, France
| | - J R Hawse
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
| | - V Joumaa
- University of Calgary, Faculty of Kinesiology, Human Performance Laboratory, Calgary, Alberta, Canada
| | - W Herzog
- University of Calgary, Faculty of Kinesiology, Human Performance Laboratory, Calgary, Alberta, Canada
| | - S Chatelin
- ICube, CNRS UMR 7357, University of Strasbourg, Strasbourg, France
| | - S F Bensamoun
- Sorbonne University, Université de Technologie de Compiègne, CNRS UMR 7338, Biomechanics and Bioengineering, Compiègne, France.
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Maillet M, Kammoun M, Avril S, Ho Ba Tho MC, Trabelsi O. Non-destructive Characterization of Skeletal Muscle Extracellular Matrix Morphology by Combining Optical Coherence Tomography (OCT) Imaging with Tissue Clearing. Ann Biomed Eng 2023; 51:2323-2336. [PMID: 37310491 DOI: 10.1007/s10439-023-03274-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 06/01/2023] [Indexed: 06/14/2023]
Abstract
Histology is an essential step to visualize and analyze the microstructure of any biological tissue; however, histological processing is often irreversible, and histological samples are unable to be imaged or tested further. In this work, a novel non-destructive protocol is proposed for morphological analysis of skeletal muscles, combining Optical Coherence Tomography (OCT) imaging with Tissue Clearing. Imaging combining OCT and Propylene Glycol (PG) as a tissue-clearing agent, was performed on rat tail and extensor digitorum longus (EDL) muscle. The results show that the extracellular matrix morphology of skeletal muscles, including muscular fibers and the whole microstructure architecture were clearly identified. PG improved OCT imaging as measured by image quality metric Contrast Per Pixel CPP (increases by 3.9%), Naturalness Image Quality Evaluator NIQE (decreases by 23%), and Volume of Interest VOI size (higher for CPP and lower for NIQE values). The tendon microstructure was observed with less precision, as collagen fibers could not be clearly detected. The reversibility of the optical effects of the PG on the immersed tissue (in a Phosphate-Buffered Saline solution) was studied comparing native and rehydrated OCT image acquisition from a single EDL sample. Optical properties and microstructure visibility (CPP and NIQE) have been recovered to 99% of the native sample values. Moreover, clearing process caused shrinkage of the tissue recovered to 86% of the original width. Future work will aim to employ the proposed experimental protocol to identify the local mechanical properties of biological tissues.
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Affiliation(s)
- Maxence Maillet
- Université de technologie de Compiègne, CNRS, Biomechanics and Bioengineering, Centre de recherche Royallieu, CS 60319, 60203, Compiègne Cedex, France
| | - Malek Kammoun
- Université de technologie de Compiègne, CNRS, Biomechanics and Bioengineering, Centre de recherche Royallieu, CS 60319, 60203, Compiègne Cedex, France
| | - Stéphane Avril
- Mines Saint-Etienne, Univ Jean Monnet Saint-Etienne, Inserm, U 1059 Sainbiose, 42023, Saint-Etienne, France
| | - Marie-Christine Ho Ba Tho
- Université de technologie de Compiègne, CNRS, Biomechanics and Bioengineering, Centre de recherche Royallieu, CS 60319, 60203, Compiègne Cedex, France
| | - Olfa Trabelsi
- Université de technologie de Compiègne, CNRS, Biomechanics and Bioengineering, Centre de recherche Royallieu, CS 60319, 60203, Compiègne Cedex, France.
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Kammoun M, Nadal-Desbarats L, Même S, Lafoux A, Huchet C, Meyer-Dilhet G, Courchet J, Montigny F, Szeremeta F, Même W, Veksler V, Piquereau J, Pouletaut P, Subramaniam M, Hawse JR, Constans JM, Bensamoun SF. Deciphering the Role of Klf10 in the Cerebellum. J Biomed Sci Eng 2022; 15:140-156. [PMID: 36507464 PMCID: PMC9733405 DOI: 10.4236/jbise.2022.155014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recent studies have demonstrated a new role for Klf10, a Krüppel-like transcription factor, in skeletal muscle, specifically relating to mitochondrial function. Thus, it was of interest to analyze additional tissues that are highly reliant on optimal mitochondrial function such as the cerebellum and to decipher the role of Klf10 in the functional and structural properties of this brain region. In vivo (magnetic resonance imaging and localized spectroscopy, behavior analysis) and in vitro (histology, spectroscopy analysis, enzymatic activity) techniques were applied to comprehensively assess the cerebellum of wild type (WT) and Klf10 knockout (KO) mice. Histology analysis and assessment of locomotion revealed no significant difference in Klf10 KO mice. Diffusion and texture results obtained using MRI revealed structural changes in KO mice characterized as defects in the organization of axons. These modifications may be explained by differences in the levels of specific metabolites (myo-inositol, lactate) within the KO cerebellum. Loss of Klf10 expression also led to changes in mitochondrial activity as reflected by a significant increase in the activity of citrate synthase, complexes I and IV. In summary, this study has provided evidence that Klf10 plays an important role in energy production and mitochondrial function in the cerebellum.
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Affiliation(s)
- Malek Kammoun
- Biomechanics and Bioengineering CNRS UMR 7338, Sorbonne University—University of Technology of Compiègne, Compiègne, France
| | | | - Sandra Même
- Center for Molecular Biophysics, CNRS UPR4301, Orléans, France
| | - Aude Lafoux
- Therassay Platform, University of Nantes, Nantes, France
| | | | | | - Julien Courchet
- CNRS UMR-5310 and INSERM U-1217, NeuroMyoGène Institute, Villeurbanne, France
| | | | | | - William Même
- Center for Molecular Biophysics, CNRS UPR4301, Orléans, France
| | - Vladimir Veksler
- INSERM UMR-S 1180, University of Paris-Saclay, Châtenay-Malabry, France
| | - Jérôme Piquereau
- INSERM UMR-S 1180, University of Paris-Saclay, Châtenay-Malabry, France
| | - Philippe Pouletaut
- Biomechanics and Bioengineering CNRS UMR 7338, Sorbonne University—University of Technology of Compiègne, Compiègne, France
| | | | - John R. Hawse
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, USA
| | | | - Sabine F. Bensamoun
- Biomechanics and Bioengineering CNRS UMR 7338, Sorbonne University—University of Technology of Compiègne, Compiègne, France
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Kammoun M, Pouletaut P, Morandat S, Subramaniam M, Hawse JR, Bensamoun SF. Krüppel-like factor 10 regulates the contractile properties of skeletal muscle fibers in mice. Muscle Nerve 2021; 64:765-769. [PMID: 34486132 DOI: 10.1002/mus.27412] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 11/07/2022]
Abstract
INTRODUCTION/AIMS Klf10 is a member of the Krüppel-like family of transcription factors, which is implicated in mediating muscle structure (fiber size, organization of the sarcomere), muscle metabolic activity (respiratory chain), and passive force. The aim of this study was to further characterize the roles of Klf10 in the contractile properties of skeletal muscle fibers. METHODS Fifty-two single fibers were extracted from female wild-type (WT) and Klf10 knockout (KO) oxidative (soleus) and glycolytic (extensor digitorum longus [EDL]) skinned muscles. Each fiber was immersed successively in relaxing (R), washing (W), and activating (A) solutions. Calcium was included in the activating solution to induce a maximum contraction of the fiber. The maximum force (Fmax ) was measured and normalized to the cross-sectional area to obtain the maximum stress (Stressmax ). After a steady state in contraction was reached, a quick stretch-release was performed; the force at the maximum stretch (Fstretch ) was measured and the stiffness was assessed. RESULTS Deletion of the Klf10 gene induced changes in the contractile parameters (Fmax , Stressmax , Stiffness), which were lower and higher for soleus and EDL fibers compared with littermates, respectively. These measurements also revealed changes in the proportion and resistance of attached cross-bridges. DISCUSSION Klf10 plays a major role in the homeostasis of the contractile behavior of skeletal muscle fibers in a muscle fiber type-specific manner. These findings further implicate important roles for Klf10 in skeletal muscle function and shed new light on understanding the molecular processes regulating the contractility of skeletal muscle fibers.
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Affiliation(s)
- Malek Kammoun
- Biomechanics and Bioengineering, Centre de recherche Royallieu, Université de technologie de Compiègne, Compiègne Cedex, France
| | - Philippe Pouletaut
- Biomechanics and Bioengineering, Centre de recherche Royallieu, Université de technologie de Compiègne, Compiègne Cedex, France
| | - Sandrine Morandat
- Biomechanics and Bioengineering, Centre de recherche Royallieu, Université de technologie de Compiègne, Compiègne Cedex, France
| | - Malayannan Subramaniam
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota, USA
| | - John R Hawse
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota, USA
| | - Sabine F Bensamoun
- Biomechanics and Bioengineering, Centre de recherche Royallieu, Université de technologie de Compiègne, Compiègne Cedex, France
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Khedhiri A, Boudawara M, Hachicha N, Kammoun M, Masmoudi A, Abdennadher F. POS-589 HYPOTHALAMIC PITUITARY AXIS DISORDERS IN HEMODIALYSIS PATIENTS: AN ANALYSIS OF 15 CASES. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.618] [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: 10/21/2022] Open
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Kammoun M, Piquereau J, Nadal‐Desbarats L, Même S, Beuvin M, Bonne G, Veksler V, Le Fur Y, Pouletaut P, Même W, Szeremeta F, Constans J, Bruinsma ES, Nelson Holte MH, Najafova Z, Johnsen SA, Subramaniam M, Hawse JR, Bensamoun SF. Novel role of Tieg1 in muscle metabolism and mitochondrial oxidative capacities. Acta Physiol (Oxf) 2020; 228:e13394. [PMID: 31560161 DOI: 10.1111/apha.13394] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 11/07/2018] [Revised: 09/20/2019] [Accepted: 09/23/2019] [Indexed: 12/26/2022]
Abstract
AIM Tieg1 is involved in multiple signalling pathways, human diseases, and is highly expressed in muscle where its functions are poorly understood. METHODS We have utilized Tieg1 knockout (KO) mice to identify novel and important roles for this transcription factor in regulating muscle ultrastructure, metabolism and mitochondrial functions in the soleus and extensor digitorum longus (EDL) muscles. RNA sequencing, immunoblotting, transmission electron microscopy, MRI, NMR, histochemical and mitochondrial function assays were performed. RESULTS Loss of Tieg1 expression resulted in altered sarcomere organization and a significant decrease in mitochondrial number. Histochemical analyses demonstrated an absence of succinate dehydrogenase staining and a decrease in cytochrome c oxidase (COX) enzyme activity in KO soleus with similar, but diminished, effects in the EDL. Decreased complex I, COX and citrate synthase (CS) activities were detected in the soleus muscle of KO mice indicating altered mitochondrial function. Complex I activity was also diminished in KO EDL. Significant decreases in CS and respiratory chain complex activities were identified in KO soleus. 1 H-NMR spectra revealed no significant metabolic difference between wild-type and KO muscles. However, 31 P spectra revealed a significant decrease in phosphocreatine and ATPγ. Altered expression of 279 genes, many of which play roles in mitochondrial and muscle function, were identified in KO soleus muscle. Ultimately, all of these changes resulted in an exercise intolerance phenotype in Tieg1 KO mice. CONCLUSION Our findings have implicated novel roles for Tieg1 in muscle including regulation of gene expression, metabolic activity and organization of tissue ultrastructure. This muscle phenotype resembles diseases associated with exercise intolerance and myopathies of unknown consequence.
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Affiliation(s)
- Malek Kammoun
- Biomechanics and Bioengineering Laboratory Alliance Sorbonne Universités Université de Technologie de Compiègne UMR CNRS 7338 Compiègne France
| | - Jerome Piquereau
- Signalling and Cardiovascular Pathophysiology ‐ UMR‐S 1180 Université Paris‐Sud INSERM Université Paris‐Saclay Châtenay‐Malabry France
| | | | - Sandra Même
- CNRS UPR4301 Centre de Biophysique Moléculaire Orléans France
| | - Maud Beuvin
- Inserm U974 Centre de Recherche en Myologie Sorbonne Université Paris France
| | - Gisèle Bonne
- Inserm U974 Centre de Recherche en Myologie Sorbonne Université Paris France
| | - Vladimir Veksler
- Signalling and Cardiovascular Pathophysiology ‐ UMR‐S 1180 Université Paris‐Sud INSERM Université Paris‐Saclay Châtenay‐Malabry France
| | - Yann Le Fur
- Aix‐Marseille University CNRS CRMBM Marseille France
| | - Philippe Pouletaut
- Biomechanics and Bioengineering Laboratory Alliance Sorbonne Universités Université de Technologie de Compiègne UMR CNRS 7338 Compiègne France
| | - William Même
- CNRS UPR4301 Centre de Biophysique Moléculaire Orléans France
| | | | - Jean‐Marc Constans
- Institut Faire Faces EA Chimère Imagerie et Radiologie Médicale CHU Amiens Amiens France
| | | | | | - Zeynab Najafova
- Department of General, Visceral and Pediatric Surgery University Medical Center Göttingen Göttingen Germany
| | - Steven A. Johnsen
- Department of General, Visceral and Pediatric Surgery University Medical Center Göttingen Göttingen Germany
| | | | - John R. Hawse
- Department of Biochemistry and Molecular Biology Mayo Clinic Rochester MN USA
| | - Sabine F. Bensamoun
- Biomechanics and Bioengineering Laboratory Alliance Sorbonne Universités Université de Technologie de Compiègne UMR CNRS 7338 Compiègne France
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Ternifi R, Kammoun M, Pouletaut P, Subramaniam M, Hawse JR, Bensamoun SF. Ultrasound image processing to estimate the structural and functional properties of mouse skeletal muscle. Biomed Signal Process Control 2020; 56. [DOI: 10.1016/j.bspc.2019.101735] [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: 12/27/2022]
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Kammoun M, Pouletaut P, Nguyen TN, Subramaniam M, Hawse JR, Bensamoun SF. The Effect of Freezing Time on Muscle Fiber Mechanical Properties. Annu Int Conf IEEE Eng Med Biol Soc 2020; 2019:5356-5359. [PMID: 31947066 DOI: 10.1109/embc.2019.8857804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The purpose of this study was to investigate the effect of freezing time on the functional behavior of mouse muscle fibers. Passive mechanical tests were performed on single soleus muscle fibers from fresh (0 month) and preserved (stored at -20°C for 3, 6, 9 and 12 months) 3 month old mice. The Young's modulus and the dynamic and the static stresses were measured. A viscoelastic Hill model of 3rd order was used to fit the experimental relaxation test data. The statistical analysis corresponding to the elastic modulus of single muscle fibers did not differ when comparing fresh and stored samples for 3 and 6 months at -20 °C. From 9 months, fibers were less resistant and the mechanical properties were damaged. The primary goal of this study was to complete the gold standard process of muscle fiber preservation for subsequent mechanical property studies. We have demonstrated that muscle fibers can be stored at -20°C for up to 6 months without altering their mechanical properties.
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Kammoun M, Dupres V, Landoulsi J, Subramaniam M, Hawse J, Bensamoun SF. Transversal elasticity of TIEG1 KO muscle and tendon fibers probed by atomic force microscopy. Comput Methods Biomech Biomed Engin 2019. [DOI: 10.1080/10255842.2020.1714923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- M. Kammoun
- Sorbonne University, Université de technologie de Compiègne, CNRS UMR 7338, Compiègne, France
| | - V. Dupres
- Institut Pasteur de Lille, Center of Infection and Immunity of Lille, CNRS UMR 8204, Lille, France
| | - J. Landoulsi
- Pierre and Marie Curie University, Laboratoire de Réactivité de Surface UMR 7197, Paris, France
| | - M. Subramaniam
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, NY, USA
| | - J. Hawse
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, NY, USA
| | - S. F. Bensamoun
- Sorbonne University, Université de technologie de Compiègne, CNRS UMR 7338, Compiègne, France
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Hajlaoui A, Slimani W, Kammoun M, Sallem A, Braham S, Bibi M, Saad A, Mougou-Zerelli S. Sperm fluorescent in situ hybridisation study of interchromosomal effect in six Tunisian carriers of reciprocal and Robertsonian translocations. Andrologia 2018; 50:e12949. [PMID: 29336050 DOI: 10.1111/and.12949] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2017] [Indexed: 01/03/2023] Open
Abstract
Carriers of structural chromosomal anomalies, translocations and inversions are at increased risk of aneuploid gametes production. Besides the direct effect on the involved chromosomes, these rearrangements might disturb the segregation of other structurally normal chromosomes during meiosis. Such event is known as interchromosomal effect. In this study, six male carriers of translocations, four reciprocals and two Robertsonians, were investigated. In addition, seven fertile men with normal 46,XY karyotypes and normal sperm characteristics were enrolled as a control group. Spermatic fluorescent in situ hybridisation specific for chromosomes X, Y, 18, 21 and 22 was carried out. The Mann-Whitney U-test was used to compare the aneuploidy rates between patients and controls. All translocation carriers showed significantly increased frequencies of disomy of all investigated chromosomes, and diploid gametes compared with the control group (p < .05). However, disomy XY was not significantly different between controls and patients (p > .05). We have also observed a considerable interindividual variability in disomy and diploidy rates. These results confirm that the interchromosomal effect seems to exist and could contribute to higher rates of abnormal prenatal aneuploidy, resulting in a small increase in the risk of miscarriage and birth of children with congenital abnormalities and a potential reduction in fertility.
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Affiliation(s)
- A Hajlaoui
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
| | - W Slimani
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
| | - M Kammoun
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
| | - A Sallem
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
| | - S Braham
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
| | - M Bibi
- Department of Obstetrics and Gynecology, Farhat Hached University Hospital, Sousse, Tunisia
| | - A Saad
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
| | - S Mougou-Zerelli
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
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Kammoun M, Veksler V, Piquereau J, Bonne G, Beuvin M, Nelson I, Pouletaut P, Subramaniam M, Hawse J, Bensamoun S. TIEG1 is a novel regulator of muscle mitochondrial biogenesis. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.093] [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: 11/25/2022]
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Bahloul M, Regaieg K, Chabchoub I, Kammoun M, Chtara K, Bouaziz M. Severe scorpion envenomation: pathophysiology and the role of inflammation in multiple organ failure. Med Sante Trop 2017; 27:214-221. [PMID: 28655685 DOI: 10.1684/mst.2017.0688] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Scorpion stings occur on every continent except Antarctica. The correlation between young age and severity of clinical manifestations after this envenomation is well-established. Several studies have emphasized the relevance of pro-inflammatory mediators in the pathophysiological manifestations of human scorpion envenomation. Moreover, there is a significant association between pro-inflammatory cytokine levels in the blood and the severity of scorpion envenomation. Release of these cytokines increases the severity of the visceral damage induced by the direct action of the venom and the activation of both the sympathetic and parasympathetic nervous systems.
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Affiliation(s)
- M Bahloul
- Hôpital Habib Bourguiba, service de réanimation médicale, route El Ain Km 1, 3029 Sfax, Tunisie
| | - K Regaieg
- Hôpital Habib Bourguiba, service de réanimation médicale, route El Ain Km 1, 3029 Sfax, Tunisie
| | - I Chabchoub
- Hôpital Hedi Chaker, service de pédiatrie générale, route El Ain Km 1, 3029 Sfax, Tunisie
| | - M Kammoun
- Hôpital Habib Bourguiba, service de réanimation médicale, route El Ain Km 1, 3029 Sfax, Tunisie
| | - K Chtara
- Hôpital Habib Bourguiba, service de réanimation médicale, route El Ain Km 1, 3029 Sfax, Tunisie
| | - M Bouaziz
- Hôpital Habib Bourguiba, service de réanimation médicale, route El Ain Km 1, 3029 Sfax, Tunisie
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Kammoun M, Meme S, Meme W, Subramaniam M, Hawse JR, Canon F, Bensamoun SF. Impact of TIEG1 on the structural properties of fast- and slow-twitch skeletal muscle. Muscle Nerve 2016; 55:410-416. [PMID: 27421714 DOI: 10.1002/mus.25252] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2016] [Indexed: 01/18/2023]
Abstract
INTRODUCTION Transforming growth factor-beta (TGF-β)-inducible early gene-1 (TIEG1) is a transcription factor that is highly expressed in skeletal muscle. The purpose of this study was to characterize the structural properties of both fast-twitch (EDL) and slow-twitch (soleus) muscles in the hindlimb of TIEG1-deficient (TIEG1-/- ) mice. METHODS Ten slow and 10 fast muscles were analyzed from TIEG1-/- and wild-type (WT) mice using MRI texture (MRI-TA) and histological analyses. RESULTS MRI-TA could discriminate between WT slow and fast muscles. Deletion of the TIEG1 gene led to changes in the texture profile within both muscle types. Specifically, muscle isolated from TIEG1-/- mice displayed hypertrophy, hyperplasia, and a modification of fiber area distribution. CONCLUSIONS We demonstrated that TIEG1 plays an important role in the structural properties of skeletal muscle. This study further implicates important roles for TIEG1 in the development of skeletal muscle and suggests that defects in TIEG1 expression and/or function may be associated with muscle disease. Muscle Nerve 55: 410-416, 2017.
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Affiliation(s)
- Malek Kammoun
- Université de Technologie de Compiègne, Centre de Recherches de Royallieu, Laboratoire de Biomécanique et de BioIngénierie, UMR CNRS 7338, BP 20529, 60205, Compiègne Cedex, France
| | - Sandra Meme
- Centre de Biophysique Moléculaire, CNRS UPR4301, Orléans, France
| | - William Meme
- Centre de Biophysique Moléculaire, CNRS UPR4301, Orléans, France
| | - Malayannan Subramaniam
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota, USA
| | - John R Hawse
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota, USA
| | - Francis Canon
- Université de Technologie de Compiègne, Centre de Recherches de Royallieu, Laboratoire de Biomécanique et de BioIngénierie, UMR CNRS 7338, BP 20529, 60205, Compiègne Cedex, France
| | - Sabine F Bensamoun
- Université de Technologie de Compiègne, Centre de Recherches de Royallieu, Laboratoire de Biomécanique et de BioIngénierie, UMR CNRS 7338, BP 20529, 60205, Compiègne Cedex, France
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Kammoun M, Pouletaut P, Canon F, Subramaniam M, Hawse JR, Vayssade M, Bensamoun SF. Impact of TIEG1 Deletion on the Passive Mechanical Properties of Fast and Slow Twitch Skeletal Muscles in Female Mice. PLoS One 2016; 11:e0164566. [PMID: 27736981 PMCID: PMC5063386 DOI: 10.1371/journal.pone.0164566] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 09/27/2016] [Indexed: 11/24/2022] Open
Abstract
As transforming growth factor (TGF)-β inducible early gene-1 is highly expressed in skeletal muscle, the effect of TIEG1 gene deletion on the passive mechanical properties of slow and fast twitch muscle fibers was analyzed. Twenty five muscle fibers were harvested from soleus (Sol) and extensor digitorum longus (EDL) muscles from TIEG1-/- (N = 5) and control (N = 5) mice. Mechanical tests were performed on fibers and the dynamic and static stresses were measured. A viscoelastic Hill model of 3rd order was used to fit the experimental relaxation test data. In parallel, immunohistochemical analyses were performed on three serial transverse sections to detect the myosin isoforms within the slow and fast muscles. The percentage and the mean cross sectional area of each fiber type were calculated. These tests revealed a significant increase in the mechanical stress properties for the TIEG1-/- Sol fibers while a significant decrease appeared for the TIEG1-/- EDL fibers. Hill model tracked the shape of the experimental relaxation curve for both genotypes and both fiber types. Immunohistochemical results showed hypertrophy of all fiber types for TIEG1-/- muscles with an increase in the percentage of glycolytic fibers (IIX, and IIB) and a decrease of oxidative fibers (I, and IIA). This study has provided new insights into the role of TIEG1, known as KLF10, in the functional (SoltypeI: more resistant, EDLtypeIIB: less resistant) and morphological (glycolytic hypertrophy) properties of fast and slow twitch skeletal muscles. Further investigation at the cellular level will better reveal the role of the TIEG1 gene in skeletal muscle tissue.
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Affiliation(s)
- Malek Kammoun
- Biomechanics and Bioengineering Laboratory, UMR CNRS 7338, Sorbonne University, Université de Technologie de Compiègne, Compiègne, France
| | - Philippe Pouletaut
- Biomechanics and Bioengineering Laboratory, UMR CNRS 7338, Sorbonne University, Université de Technologie de Compiègne, Compiègne, France
| | - Francis Canon
- Biomechanics and Bioengineering Laboratory, UMR CNRS 7338, Sorbonne University, Université de Technologie de Compiègne, Compiègne, France
| | - Malayannan Subramaniam
- Department of Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street SW, Rochester, Minnesota, 55905, United States of America
| | - John R. Hawse
- Department of Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street SW, Rochester, Minnesota, 55905, United States of America
| | - Muriel Vayssade
- Biomechanics and Bioengineering Laboratory, UMR CNRS 7338, Sorbonne University, Université de Technologie de Compiègne, Compiègne, France
| | - Sabine F. Bensamoun
- Biomechanics and Bioengineering Laboratory, UMR CNRS 7338, Sorbonne University, Université de Technologie de Compiègne, Compiègne, France
- * E-mail:
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Kammoun M, Picard B, Astruc T, Gagaoua M, Aubert D, Bonnet M, Blanquet V, Cassar-Malek I. The Invalidation of HspB1 Gene in Mouse Alters the Ultrastructural Phenotype of Muscles. PLoS One 2016; 11:e0158644. [PMID: 27512988 PMCID: PMC4981447 DOI: 10.1371/journal.pone.0158644] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 06/20/2016] [Indexed: 12/30/2022] Open
Abstract
Even though abundance of Hsp27 is the highest in skeletal muscle, the relationships between the expression of HspB1 (encoding Hsp27) and muscle characteristics are not fully understood. In this study, we have analysed the effect of Hsp27 inactivation on mouse development and phenotype. We generated a mouse strain devoid of Hsp27 protein by homologous recombination of the HspB1 gene. The HspB1-/- mouse was viable and fertile, showing neither apparent morphological nor anatomical alterations. We detected a gender dimorphism with marked effects in males, a lower body weight (P < 0.05) with no obvious changes in the growth rate, and a lower plasma lipids profile (cholesterol, HDL and triglycerides, 0.001 < P< 0.05). The muscle structure of the animals was examined by optical microscopy and transmission electron microscopy. Not any differences in the characteristics of muscle fibres (contractile and metabolic type, shape, perimeter, cross-sectional area) were detected except a trend for a higher proportion of small fibres. Different myosin heavy chains electrophoretic profiles were observed in the HspB1-/- mouse especially the presence of an additional isoform. Electron microscopy revealed ultrastructural abnormalities in the myofibrillar structure of the HspB1-/- mouse mutant mice (e.g. destructured myofibrils and higher gaps between myofibrils) especially in the m. Soleus. Combined with our previous data, these findings suggest that Hsp27 could directly impact the organization of muscle cytoskeleton at the molecular and ultrastructural levels.
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Affiliation(s)
- Malek Kammoun
- INRA, UMR1213 Herbivores, F-63122, Saint-Genès-Champanelle, France
- Clermont Université, VetAgro Sup, UMR1213 Herbivores, BP 10448, F-63000, Clermont-Ferrand, France
| | - Brigitte Picard
- INRA, UMR1213 Herbivores, F-63122, Saint-Genès-Champanelle, France
- Clermont Université, VetAgro Sup, UMR1213 Herbivores, BP 10448, F-63000, Clermont-Ferrand, France
| | - Thierry Astruc
- INRA, UR0370 Qualité des Produits Animaux, F-63122, Saint-Genès-Champanelle, France
| | - Mohammed Gagaoua
- INRA, UMR1213 Herbivores, F-63122, Saint-Genès-Champanelle, France
- Equipe Maquav, INATAA, Université Frères Mentouri Constantine, Constantine, Algeria
| | - Denise Aubert
- Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, Université Lyon 1, CNRS, INRA, École Normale Supérieure de Lyon, F-69364, Lyon, France
| | - Muriel Bonnet
- INRA, UMR1213 Herbivores, F-63122, Saint-Genès-Champanelle, France
- Clermont Université, VetAgro Sup, UMR1213 Herbivores, BP 10448, F-63000, Clermont-Ferrand, France
| | | | - Isabelle Cassar-Malek
- INRA, UMR1213 Herbivores, F-63122, Saint-Genès-Champanelle, France
- Clermont Université, VetAgro Sup, UMR1213 Herbivores, BP 10448, F-63000, Clermont-Ferrand, France
- * E-mail:
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Bouali N, Francou B, Bouligand J, Lakhal B, Malek I, Kammoun M, Warszawski J, Mougou S, Saad A, Guiochon-Mantel A. NOBOX is a strong autosomal candidate gene in Tunisian patients with primary ovarian insufficiency. Clin Genet 2016; 89:608-13. [PMID: 26848058 DOI: 10.1111/cge.12750] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 12/28/2015] [Revised: 01/27/2016] [Accepted: 01/27/2016] [Indexed: 12/13/2022]
Abstract
Premature ovarian insufficiency (POI) affects approximately 1% of women before the age of 40. Genetic contribution is a significant component of POI. In this context, heterozygous mutations in NOBOX, BMP15 and GDF9 have been reported. The objective of our study was to evaluate the prevalence of these genes mutations in 125 unrelated Tunisian patients diagnosed with POI. The screening of NOBOX gene revealed three missense mutations (p.Arg117Trp; p.Gly91Trp and p.Pro619Leu) in eight patients. These mutations were not found in a 200 ethnically matched women without fertility problem. The sequencing of BMP15 and GDF9 gene revealed only previously reported variants. In contrast to previous studies, the prevalence of BMP15 variations is not higher than in the control population. Conversely, 6.4% of the cases present a NOBOX mutations; this high prevalence strengthens the consideration of NOBOX gene as strong autosomal candidate for POI.
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Affiliation(s)
- N Bouali
- Laboratory of Human Cytogenetics, Molecular Genetics and Reproductive Biology, Farhat Hached University Hospital, Sousse, 4000, Tunisia
| | - B Francou
- Faculté de Médecine Paris Sud, INSERM UMR_S1185, University Paris Saclay, Univ Paris sud, Le Kremlin-Bicêtre, France.,Assistance Publique-Hôpitaux de Paris, Hôpital Bicêtre, Service de Génétique moléculaire, Pharmacogénétique et Hormonologie, Le Kremlin-Bicêtre, France
| | - J Bouligand
- Faculté de Médecine Paris Sud, INSERM UMR_S1185, University Paris Saclay, Univ Paris sud, Le Kremlin-Bicêtre, France.,Assistance Publique-Hôpitaux de Paris, Hôpital Bicêtre, Service de Génétique moléculaire, Pharmacogénétique et Hormonologie, Le Kremlin-Bicêtre, France
| | - B Lakhal
- Laboratory of Human Cytogenetics, Molecular Genetics and Reproductive Biology, Farhat Hached University Hospital, Sousse, 4000, Tunisia
| | - I Malek
- Laboratory of Human Cytogenetics, Molecular Genetics and Reproductive Biology, Farhat Hached University Hospital, Sousse, 4000, Tunisia
| | - M Kammoun
- Laboratory of Human Cytogenetics, Molecular Genetics and Reproductive Biology, Farhat Hached University Hospital, Sousse, 4000, Tunisia
| | - J Warszawski
- Assistance Publique-Hôpitaux de Paris, Hôpital Bicêtre, Service d'Epidémiologie, University Paris Saclay, University Paris-Sud, INSERM U1018 eq 4, Le Kremlin-Bicêtre, France
| | - S Mougou
- Laboratory of Human Cytogenetics, Molecular Genetics and Reproductive Biology, Farhat Hached University Hospital, Sousse, 4000, Tunisia
| | - A Saad
- Laboratory of Human Cytogenetics, Molecular Genetics and Reproductive Biology, Farhat Hached University Hospital, Sousse, 4000, Tunisia
| | - A Guiochon-Mantel
- Faculté de Médecine Paris Sud, INSERM UMR_S1185, University Paris Saclay, Univ Paris sud, Le Kremlin-Bicêtre, France.,Assistance Publique-Hôpitaux de Paris, Hôpital Bicêtre, Service de Génétique moléculaire, Pharmacogénétique et Hormonologie, Le Kremlin-Bicêtre, France
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Kammoun M, Berg S, Ardebili H. Flexible thin-film battery based on graphene-oxide embedded in solid polymer electrolyte. Nanoscale 2015; 7:17516-22. [PMID: 26444436 DOI: 10.1039/c5nr04339e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Enhanced safety of flexible batteries is an imperative objective due to the intimate interaction of such devices with human organs such as flexible batteries that are integrated with touch-screens or embedded in clothing or space suits. In this study, the fabrication and testing of a high performance thin-film Li-ion battery (LIB) is reported that is both flexible and relatively safer compared to the conventional electrolyte based batteries. The concept is facilitated by the use of solid polymer nanocomposite electrolyte, specifically, composed of polyethylene oxide (PEO) matrix and 1 wt% graphene oxide (GO) nanosheets. The flexible LIB exhibits a high maximum operating voltage of 4.9 V, high capacity of 0.13 mA h cm(-2) and an energy density of 4.8 mW h cm(-3). The battery is encapsulated using a simple lamination method that is economical and scalable. The laminated battery shows robust mechanical flexibility over 6000 bending cycles and excellent electrochemical performance in both flat and bent configurations. Finite element analysis (FEA) of the LIB provides critical insights into the evolution of mechanical stresses during lamination and bending.
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Affiliation(s)
- M Kammoun
- Department of Mechanical Engineering University of Houston, Houston, TX 77204-4006, USA.
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Engels A, Brady P, Kammoun M, Ferreiro J, Dekoninck P, Endo M, Toelen J, Vermeesch J, Deprest J. Whole transcriptome sequencing (RNA-Seq) der Lunge nach fetaler Trachealokklusion im Kaninchen-Model für angeborene Zwerchfellhernien. Z Geburtshilfe Neonatol 2015. [DOI: 10.1055/s-0035-1566668] [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: 10/22/2022]
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Trichili S, Kammoun M, Abid S, Ammar H. Synthesis of New Benzopyrano[2,3-c]pyrazoles and 3-triazolonyliminocoumarins From 3-cyano Iminocoumarin Derivatives. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.903422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- S. Trichili
- a Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax , Université de Sfax , Sfax , Tunisia
| | - M. Kammoun
- a Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax , Université de Sfax , Sfax , Tunisia
| | - S. Abid
- a Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax , Université de Sfax , Sfax , Tunisia
| | - H. Ammar
- a Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax , Université de Sfax , Sfax , Tunisia
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Kammoun M, Cassar-Malek I, Meunier B, Picard B. A simplified immunohistochemical classification of skeletal muscle fibres in mouse. Eur J Histochem 2014; 58:2254. [PMID: 24998919 PMCID: PMC4083319 DOI: 10.4081/ejh.2014.2254] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 04/11/2014] [Accepted: 04/14/2014] [Indexed: 01/10/2023] Open
Abstract
The classification of muscle fibres is of particular interest for the study of the skeletal muscle properties in a wide range of scientific fields, especially animal phenotyping. It is therefore important to define a reliable method for classifying fibre types. The aim of this study was to establish a simplified method for the immunohistochemical classification of fibres in mouse. To carry it out, we first tested a combination of several anti myosin heavy chain (MyHC) antibodies in order to choose a minimum number of antibodies to implement a semi-automatic classification. Then, we compared the classification of fibres to the MyHC electrophoretic pattern on the same samples. Only two anti MyHC antibodies on serial sections with the fluorescent labeling of the Laminin were necessary to classify properly fibre types in Tibialis Anterior and Soleus mouse muscles in normal physiological conditions. This classification was virtually identical to the classification realized by the electrophoretic separation of MyHC. This immuno-histochemical classification can be applied to the total area of Tibialis Anterior and Soleus mouse muscles. Thus, we provide here a useful, simple and time-efficient method for immunohistochemical classification of fibres, applicable for research in mouse.
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Affiliation(s)
- M Kammoun
- UMR1213 Herbivores (UMRH) Clermont University, VetAgro Sup.
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21
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Kammoun M, Picard B, Henry-Berger J, Cassar-Malek I. A network-based approach for predicting Hsp27 knock-out targets in mouse skeletal muscles. Comput Struct Biotechnol J 2013; 6:e201303008. [PMID: 24688716 PMCID: PMC3962151 DOI: 10.5936/csbj.201303008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [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: 05/27/2013] [Revised: 07/04/2013] [Accepted: 07/10/2013] [Indexed: 12/16/2022] Open
Abstract
Thanks to genomics, we have previously identified markers of beef tenderness, and computed a bioinformatic analysis that enabled us to build an interactome in which we found Hsp27 at a crucial node. Here, we have used a network-based approach for understanding the contribution of Hsp27 to tenderness through the prediction of its interactors related to tenderness. We have revealed the direct interactors of Hsp27. The predicted partners of Hsp27 included proteins involved in different functions, e.g. members of Hsp families (Hsp20, Cryab, Hsp70a1a, and Hsp90aa1), regulators of apoptosis (Fas, Chuk, and caspase-3), translation factors (Eif4E, and Eif4G1), cytoskeletal proteins (Desmin) and antioxidants (Sod1). The abundances of 15 proteins were quantified by Western blotting in two muscles of HspB1-null mice and their controls. We observed changes in the amount of most of the Hsp27 predicted targets in mice devoid of Hsp27 mainly in the most oxidative muscle. Our study demonstrates the functional links between Hsp27 and its predicted targets. It suggests that Hsp status, apoptotic processes and protection against oxidative stress are crucial for post-mortem muscle metabolism, subsequent proteolysis, and therefore for beef tenderness.
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Affiliation(s)
- Malek Kammoun
- INRA, UMR1213 Herbivores, F-63122 Saint-Genès-Champanelle, France
- Clermont University, VetAgro Sup, UMR1213 Herbivores, BP 10448, F-63000, Clermont-Ferrand, France
| | - Brigitte Picard
- INRA, UMR1213 Herbivores, F-63122 Saint-Genès-Champanelle, France
- Clermont University, VetAgro Sup, UMR1213 Herbivores, BP 10448, F-63000, Clermont-Ferrand, France
| | | | - Isabelle Cassar-Malek
- INRA, UMR1213 Herbivores, F-63122 Saint-Genès-Champanelle, France
- Clermont University, VetAgro Sup, UMR1213 Herbivores, BP 10448, F-63000, Clermont-Ferrand, France
- Corresponding author: E-mail address: (Isabelle Cassar-Malek)
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Elleuch M, Mnif Feki M, Kammoun M, Charfi N, Rekik N, Bouraoui A, Kammoun T, Belguith N, Kammoun H, Sfar M, Hachicha M, Abid M. Descriptive analyses of Turner syndrome: 49 cases in Tunisia. Annales d'Endocrinologie 2010; 71:111-6. [DOI: 10.1016/j.ando.2009.12.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2009] [Accepted: 12/15/2009] [Indexed: 01/15/2023]
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Ammar H, López S, Kammoun M, Bodas R, Giráldez F, González J. Feeding quebracho tannins to sheep enhances rumen fermentative activity to degrade browse shrubs. Anim Feed Sci Technol 2009. [DOI: 10.1016/j.anifeedsci.2008.04.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [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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Affiliation(s)
- M. Kammoun
- a Laboratoire de Chimie Organique , Institut National Agronomique de Tunisie , Tunis‐Mahragène, Tunisia
| | - A. Chihi
- a Laboratoire de Chimie Organique , Institut National Agronomique de Tunisie , Tunis‐Mahragène, Tunisia
| | - B. Hajjem
- a Laboratoire de Chimie Organique , Institut National Agronomique de Tunisie , Tunis‐Mahragène, Tunisia
| | - M. Bellassoued
- b Laboratoire de Synthèse Organométallique , Cergy‐Pontoise Cedex, France
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Boussen H, Mtaallah MH, Bouzid T, Rifi H, Ben Hassouna J, Kammoun M, Meddeb B, Rahal K. Profil épidémiologique et complications des voies veineuses centrales en oncologie pédiatrique : à propos de 125 cas. Arch Pediatr 2006; 13:1107-11. [PMID: 16716574 DOI: 10.1016/j.arcped.2006.04.007] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2005] [Accepted: 04/04/2006] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To report the indications and early and late catheter-related complications in a Tunisian unit of paediatric oncology. PATIENTS AND METHODS This prospective study has been performed in a paediatric oncology unit of the Salah Azaïz Institute between 1989 and 2005. It concerns 58 girls and 57 boys with a median age of 7.9 years(4 months to 18 years) treated for cancer disease predominantly lymphoma (22%), sarcoma (23.2%) or leukaemia (8.5%) proposed for insertion of a central venous catheter (CVC). RESULTS Excluding 2 insertion failures (1.6%), we placed 123 CVC (double for 10 patients), 43 (35%) exteriorised (EC) and 80 (65%) connected to an implantable site (IS). Catheters were placed in the subclavian vein in 59.2% of cases vs 32% for internal jugular vein and 8.8% for femoral vein. Early complications included 15 cases of multiple punctures (12%), 4 cases of pneumothorax (3.2%) and 6 of arterial punctures (4.8%) originating a cervical subcutaneous haematoma in 1 patient (0.8%). Late complications were represented by infection in 7 cases (5.7%). We observed 2 cases of intracardiac catheter migration due to catheter disconnection from the IS (1.6%) and 2 cases of thrombosis (1.8%). The mean life of CVC was longer for IS (305.2 days) than for EC (64.4 days). CONCLUSION Implantable sites are effective progress for venous access in children with cancer. They improved the quality of care in pediatric oncology.
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Affiliation(s)
- H Boussen
- Service de carcinologie médicale, institut Salah-Azaïz, 1006, boulevard du 9-Avril, Tunis, Tunisie.
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Abstract
Most patients with dilated cardiomyopathy have a poor prognosis due to progressive and irreversible myocardial dysfunction. Rarely, is a metabolic etiology responsive to specific therapy identified. Although many studies have confirmed that thyroid hormone deficiency is associated with a reversible decrease in myocardial contractility, it has remained controversial whether hypothyroidism alone can cause a dilated cardiomyopathy and clinical heart failure. In this study, we report the case of a patient with severe hypothyroidism and a dilated cardiomyopathy complicated by heart failure, which has receded after recovery to euthyroidism with L-thyroxin therapy. This case suggests that hypothyroidism should be evoked systematically when a dilated cardiomyopathy is diagnosed.
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Affiliation(s)
- L Bezdah
- Service de cardiologie, hôpital Charles-Nicolle, boulevard du 9 Avril, 1006 Tunis, Tunisie.
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Drira I, Fennira H, Hantous S, El Mokhtar E, Rekhis O, Hadoussa J, Mistiri I, Ellafi A, Keskes H, Dakhlaoui R, Ben Miled K, Kammoun M, Abid A, Hamzaoui A, Chebbi ML. [Hydatid pulmonary embolism. Two case reports]. Rev Pneumol Clin 2000; 56:41-44. [PMID: 10740114] [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: 05/23/2023]
Abstract
Hydatid pulmonary embolism is an uncommon condition resulting from the rupture of a hydatid heart cyst or the opening of a visceral hydatid cyst (often in the liver) into the venous circulation. We report two cases of hydatid pulmonary embolism following rupture of a hydatic cyst in the right ventricle. One case progressed to chronic cor pulmonale. We examine the pathophysiological mechanisms as well as the clinical, therapeutic and evolutive aspects.
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Affiliation(s)
- I Drira
- Service de Pneumologie, Hôpital A. Mami de Pneumophtisiologie, Ariana, Tunisie
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Kammoun M, Hajjem B, Jouini T, Baccar B. 5-Cyclohexylamino-2-phenyl-4-thiazolecarbonitrile. Acta Crystallogr C 1996. [DOI: 10.1107/s0108270195013709] [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: 11/10/2022] Open
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Abstract
Neural tissue from human fetuses is currently used for intracerebral transplantation to treat patients with Parkinson's disease. The development of the human fetal tissue following grafting has been considered mostly, up to now, from the neuronal point of view in xenografts. Very little is known, in contrast, about nonneuronal, glial, or vascular cells in the grafts. Comparison of the data gathered on the development of grafted human neurons with those obtained in comparable studies using rat transplants has demonstrated species-specific features. We have therefore undertaken a series of studies dealing with nonneuronal cells in human-to-rat transplants to reveal other possible species-specificity of the human tissue. This study has, accordingly, been devoted to the immunohistochemical analysis of microglia of host and donor origins in a human to rat xenograft paradigm allowing clear distinction of the origin of the cells. Human neural tissue was transplanted as a cell suspension into the thalamus of adult rats. Amoeboid human microglia were observed in 1-, 2-, and 3-month-old transplants, but their density, already relatively low at the first stage, decreased further over time. Ramified human microglia were only occasional. In sharp contrast, host rat microglia rapidly invaded the transplant in the absence of any sign of necrosis. The rat cells exhibited first an amoeboid morphology but progressed at the later stages toward a more mature, ramified morphology. These results indicate that donor microglia are quite few in number at first and, at least, do not proliferate actively after transplantation.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- C Geny
- INSERM U 421, Neuroplasticité et Thérapeutique, Faculté de Médecine, Créteil, France
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el May MV, Kraiem A, Messaoud T, Fattoum S, Kammoun M, Zouaghi H, Mtimet S. Puzzling biochemical thyroid profile in patients with multinodular goitre originating from a mild iodine deficient area in Tunisia. Thyroidology 1994; 6:61-7. [PMID: 7536452] [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: 01/25/2023]
Abstract
Thirty Tunisian patients with a voluminous multinodular goiter with cold nodules and inhabiting a region of mild iodine deficiency, have been studied. The 131 I fixation by the thyroid, three hours after ingestion was significatively higher than in normal population. Fourty six per cent of the patients have stable iodine urine contents less or equal to 0.39 mumol/L. Three serum concentrations were paradoxically abnormal: thyrotropin (TSH), thyroglobulin (TG) and gammaglobulin concentrations. Fourty seven per cent of the serum thyrotropin (TSH) levels were less than the normal values though the serum total triiodotyronine (TT3), tetraiodotyronine (TT4), free triiodotyronine (FT3), free tetraiodotyronine (FT4), antithyroglobulin antibodies, total protein, triglycerides and cholesterol concentrations were normal. Serum thyroglobulin (TG) rates were elevated, ranged from 2 to 10,180 ng/ml and twenty five per cent of our patients showed levels greater than 500 ng/ml. The gammaglobulin levels were greater than normal in sixty eight per cent of our patients though only 10% of our patients manifest antithyroglobulin antibodies.
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Affiliation(s)
- M V el May
- Service des Isotopes, Institut S Azaiz, Tunis, Tunisie
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Ngo VU, Cynober E, Kammoun M, Bouzaghar A, Saranti L, Jeny R. [Retroplacental hematoma and uterine Doppler scan]. Rev Fr Gynecol Obstet 1993; 88:368-73. [PMID: 8351459] [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: 01/30/2023]
Abstract
The authors studied uterine Doppler findings in four cases of retroplacental hematoma at 26, 30.5, 31 and 37 weeks of amenorrhea. In all cases, the diastolic index was low, and a diastolic notch was present. In three cases, the hematoma was visualised under ultrasound. The literature on the subject confirms that the velocity of the uterine circulation is always abnormal in retroplacental hematoma. This test is therefore fundamental for the detection of clinically incomplete retroplacental hematomas and for determining the pregnancy prognosis in women with a history of vascular problems. Two of our patients received treatment with acetylsalicylic acid at an early stage of a subsequent pregnancy. The uterine Doppler scans carried out during this pregnancy at the same date as during the pregnancy with retroplacental hematoma revealed normal bloodflow velocity. The infants were born at term with normal weight. Uterine Doppler ultrasound is, therefore, an essential prognosis factor for these high-risk patients. In addition, routine performance of a uterine Doppler scan at about 22 weeks of amenorrhea in women in their first pregnancy could be useful, as any abnormal finding might be the indication for preventive treatment with acetylsalicylic acid.
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Affiliation(s)
- V U Ngo
- Service de Gynécologie-Obstétrique, hôpital Esquirol, Saint-Maurice
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Ben Khalfallah A, Chakroun D, Kammoun M. [Bacterial endocarditis of the tricuspid valves in interventricular defects]. Tunis Med 1993; 71:37-41. [PMID: 8328034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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el Matri L, Kammoun M, Cheour M, Cherif F, Touiri H, Ouertani A, Zribi A, Triki F. [Eye involvement in AIDS: the first 12 Tunisian cases]. Tunis Med 1992; 70:481-4. [PMID: 1295161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- L el Matri
- Institut Hédi Raïs d'Ophtalmologie de Tunis
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Chaouachi B, Nouri A, Ben Salah S, Kammoun M, Gharbi HA, Saïed H. [Efficacy of internal sphincteromyectomy in the treatment of chronic constipation in children. Apropos of 55 cases]. Ann Pediatr (Paris) 1988; 35:19-22. [PMID: 3364903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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36
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Ben Ayed F, Ladjimi S, Riahi M, Elmay A, Jaàfoura H, Ben Youssef R, Ben Othman T, Bouguerra A, Kammoun M, Mourali N. [Febrile polyganglionic syndrome and anti-LAV antibodies: AIDS-related complex (apropos of an imported case)]. Tunis Med 1986; 64:751-4. [PMID: 3468675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Ladjimi S, Djemel A, Ghezel S, Mili F, Jaafoura M, Bouhlel T, Kammoun M, Zegaya M. [Value of pleural puncture biopsy in the etiological diagnosis of clear-fluid pleurisy (possibilities and limitations)]. Tunis Med 1984; 62:351-6. [PMID: 6528419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Fredj M, Ellouze M, Kammoun M, Arfaoui T, Gargouri M. [Primary non-Hodgkin malignant lymphoma of the stomach (apropos of 8 cases)]. Tunis Med 1984; 62:105-11. [PMID: 6528383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Ladjimi S, Smaoui M, Djemel A, Kammoun M, Zegaya M. [Contribution of flexible bronchoscopy to the diagnosis of bronchopulmonary cancer (apropos of 100 cases)]. Tunis Med 1983; 61:171-8. [PMID: 6680962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Zegaya M, Ladjimi S, Kammoun M, Smaoui M, Djemel A. [Rigid or flexible bronchoscopy? (Comparative study of 120 cases of primary bronchopulmonary cancer)]. Tunis Med 1983; 61:105-10. [PMID: 6680949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Ayed S, Kammoun M, Rekik R, Kallal Z, Daghfous MT. [Diabetic retinopathy in Tunisia. Apropos of 200 cases]. Tunis Med 1981; 59:355-7. [PMID: 7344196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Ammar S, Ledjri H, Attia S, Mrad M, Kammoun M, Annabi M, Yourine B, Asmi Z, Jaoua A. [Epidemiologic profile of depressive disorders. Apropos of 639 cases admitted to the Razi Hospital during the last 10 years]. Tunis Med 1981; 59:301-6. [PMID: 7303173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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