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Oshiba A, Abdallah D, Abdelaziz M, Ibrahim A, Kotb M, Eshiba S, Rizvi M. Splenogonadal fusion: a case report. J Med Case Rep 2023; 17:515. [PMID: 38098099 PMCID: PMC10722740 DOI: 10.1186/s13256-023-04241-0] [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: 07/18/2023] [Accepted: 11/05/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND Accessory splenic tissue is a commonly encountered phenomenon in medical literature. Typically, these accessory spleens are found in close proximity to the main spleen, either in the hilum or within the surrounding ligaments. Nevertheless, it is noteworthy that they can also be located in unusual sites such as the jejunum wall, mesentery, pelvis, and, exceptionally rarely, the scrotum. The first documented case of accessory splenic tissue in the scrotum was reported by Sneath in 1913 and is associated with a rare congenital anomaly called splenogonadal fusion. This report describes an infant who presented with a scrotal mass noted by his mother and after examination, investigations, and surgical exploration, it was revealed to be splenogonadal fusion. CASE DESCRIPTION An 8-month-old Caucasian male patient presented with a mass in the left testicle and bluish discoloration of the scrotum, which had been incidentally noticed in the previous 2 months. The general physical examination was unremarkable. Other than a palpable scrotal mass that was related to the upper pole of the testis, the rest of examination was unremarkable. Imaging revealed that this mass originated from the tail of the epididymis without infiltrating the testis and tumor markers were normal. On inguinal exploration, a reddish brown 2 × 2 cm mass was found attached to the upper pole and was completely excised without causing any harm to the testis, vessels, or epididymis. Histopathological evaluation confirmed the presence of intratesticular ectopic splenic tissue. CONCLUSION Although uncommon, splenogonadal fusion can be included in the differential diagnosis of a testicular swelling. Accurate diagnosis allows for appropriate treatment planning which helps to avoid unnecessary radical orchiectomy, which can have a significant impact on the patient's reproductive and psychological wellbeing.
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Affiliation(s)
- Ahmed Oshiba
- Faculty of Medicine, University of Alexandria, Alexandria, 21311, Egypt
| | - Dina Abdallah
- Faculty of Medicine, University of Alexandria, Alexandria, 21311, Egypt
| | - Marwa Abdelaziz
- Faculty of Medicine, University of Alexandria, Alexandria, 21311, Egypt
| | - Amir Ibrahim
- Faculty of Medicine, University of Alexandria, Alexandria, 21311, Egypt
| | - Mostafa Kotb
- Faculty of Medicine, University of Alexandria, Alexandria, 21311, Egypt.
| | - Samar Eshiba
- Faculty of Medicine, University of Alexandria, Alexandria, 21311, Egypt
| | - Maryam Rizvi
- Faculty of Life Sciences and Medicine, Guy's, King's and St Thomas' (GKT) School of Medical Education, King's College London, London, UK
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El-Ganainy SO, Shehata AM, El-Mallah A, Abdallah D, Mohy El-Din MM. Geraniol suppresses tumour growth and enhances chemosensitivity of 5-fluorouracil on breast carcinoma in mice: involvement of miR-21/PTEN signalling. J Pharm Pharmacol 2023:rgad060. [PMID: 37379815 DOI: 10.1093/jpp/rgad060] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 06/14/2023] [Indexed: 06/30/2023]
Abstract
OBJECTIVES Breast cancer is the most diagnosed cancer in females worldwide. Phytochemicals are among the recent compelling approaches showing anticancer activity. Geraniol is a monoterpenoid showing anti-tumoral potential in cell lines. However, its exact mechanism in breast cancer has not been elucidated. In addition, the possible chemosenstizing effect of geraniol when combined with chemotherapeutic drugs in breast carcinoma has not been previously addressed. METHODS Therefore, the aim of the current work is to investigate the potential therapeutic as well as chemosensitizing effects of geraniol on breast carcinoma induced in mice through examination of tumour biomarkers and histopathology profile. KEY FINDINGS Results showed a prominent suppression of tumour growth following geraniol treatment. This was accompanied with miR-21 downregulation that subsequently upregulated PTEN and suppressed mTOR levels. Geraniol was also able to activate apoptosis and inhibit autophagy. Histopathological examination revealed high necrosis areas separating malignant cells in the geraniol-treated group. Combined geraniol and 5-fluorouracil treatment induced more than 82% inhibition of tumour rate, surpassing the effect of each drug alone. CONCLUSIONS It can be concluded that geraniol could represent a promising avenue for breast cancer treatment as well as a potential sensitizing agent when combined with chemotherapeutic drugs.
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Affiliation(s)
- Samar O El-Ganainy
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria, Egypt
| | - Asmaa M Shehata
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria, Egypt
| | - Ahmed El-Mallah
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Dina Abdallah
- Department of Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Mahmoud M Mohy El-Din
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria, Egypt
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3
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Da Prato LC, Zayan U, Abdallah D, Point V, Schaller F, Pallesi-Pocachard E, Montheil A, Canaan S, Gaiarsa JL, Muscatelli F, Matarazzo V. Early life oxytocin treatment improves thermo-sensory reactivity and maternal behavior in neonates lacking the autism-associated gene Magel2. Neuropsychopharmacology 2022; 47:1901-1912. [PMID: 35396500 PMCID: PMC9485246 DOI: 10.1038/s41386-022-01313-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/28/2022] [Accepted: 03/18/2022] [Indexed: 11/30/2022]
Abstract
Atypical responses to sensory stimuli are considered as a core aspect and early life marker of autism spectrum disorders (ASD). Although recent findings performed in mouse ASD genetic models report sensory deficits, these were explored exclusively during juvenile or adult period. Whether sensory dysfunctions might be present at the early life stage and rescued by therapeutic strategy are fairly uninvestigated. Here we found that under cool environment neonatal mice lacking the autism-associated gene Magel2 present pup calls hypo-reactivity and are retrieved with delay by their wild-type dam. This neonatal atypical sensory reactivity to cool stimuli was not associated with autonomic thermoregulatory alteration but with a deficit of the oxytocinergic system. Indeed, we show in control neonates that pharmacogenetic inactivation of hypothalamic oxytocin neurons mimicked atypical thermosensory reactivity found in Magel2 mutants. Furthermore, pharmacological intranasal administration of oxytocin to Magel2 neonates was able to rescue both the atypical thermosensory response and the maternal pup retrieval. This preclinical study establishes for the first-time early life impairments in thermosensory integration and suggest a therapeutic potential benefit of intranasal oxytocin treatment on neonatal atypical sensory reactivity for autism.
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Affiliation(s)
| | - Ugo Zayan
- grid.461865.80000 0001 1486 4553Aix Marseille Univ, INSERM, INMED, Marseille, France
| | - Dina Abdallah
- grid.461865.80000 0001 1486 4553Aix Marseille Univ, INSERM, INMED, Marseille, France
| | - Vanessa Point
- grid.5399.60000 0001 2176 4817Aix-Marseille Univ, CNRS, LISM, IMM, Marseille, France
| | - Fabienne Schaller
- grid.461865.80000 0001 1486 4553Aix Marseille Univ, INSERM, INMED, Marseille, France
| | | | - Aurélie Montheil
- grid.461865.80000 0001 1486 4553Aix Marseille Univ, INSERM, INMED, Marseille, France
| | - Stéphane Canaan
- grid.5399.60000 0001 2176 4817Aix-Marseille Univ, CNRS, LISM, IMM, Marseille, France
| | - Jean-Luc Gaiarsa
- grid.461865.80000 0001 1486 4553Aix Marseille Univ, INSERM, INMED, Marseille, France
| | - Françoise Muscatelli
- grid.461865.80000 0001 1486 4553Aix Marseille Univ, INSERM, INMED, Marseille, France
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4
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El-Khayat SM, Abouegylah M, Abdallah D, Geweil AG, Elenbaby AM, Zahra OS. The effect of metformin when combined with neoadjuvant chemotherapy in breast cancer patients. Med Oncol 2021; 39:1. [PMID: 34739637 DOI: 10.1007/s12032-021-01599-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 10/15/2021] [Indexed: 12/29/2022]
Abstract
Metformin has been used to treat type 2 Diabetes Mellitus since long time. It has two proposed anti-neoplastic mechanisms, direct (insulin-independent) and indirect (insulin-dependent) actions. To assess the effect of Metformin on pathological response when combined with neoadjuvant chemotherapy in breast cancer. A prospective study included stage II, III non-diabetic breast cancer patients who received neoadjuvant chemotherapy in our center during the period from May 2017 to March 2019. 59 patients met our inclusion criteria and completed the study, 27 patients received 850 mg Metformin every 12 h with chemotherapy (group A), and 32 patients received chemotherapy without Metformin (group B). Pathological response was assessed by Chevallier classification and residual cancer burden score (RCB). Both groups were well balanced regarding baseline characteristics. The results of our study showed that the rate of pathological complete response (pCR) was 14.8% in group (A) vs. 6.3% in group (B) with a P value of 0.39. RCB class 3 was 40.7% in group (A) vs. 68.8% in group (B) which was statistically significant with a (P value of 0.031). Patients with triple-positive histology who had RCB class 3 were only (14.3%) in group (A) versus (60%) in group B. Patients with body mass index (BMI) ≥ 25 who had RCB 3 were 40% and 66.7% in group (A) and (B), respectively. Metformin may increase the pCR especially in patients with BMI ≥ 25 and patients with triple-positive histology, a larger phase III study is needed to confirm this finding.
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Affiliation(s)
- Shaimaa M El-Khayat
- Clinical Oncology Department, Medical Research Institute, Alexandria University, 169 El-hureya Street, Qism Bab Sharqi, Alexandria, Alexandria Governorate, Egypt.
| | - Mohamed Abouegylah
- Clinical Oncology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Dina Abdallah
- Pathology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Ahmed Gaber Geweil
- Clinical Oncology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - A M Elenbaby
- Clinical Oncology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Omar Shebl Zahra
- Clinical Oncology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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5
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Kotb M, Aboelela A, Eshiba A, Sheta E, Abdallah D. Jejunal infantile fibrosarcoma: An unusual cause of neonatal intestinal obstruction. Congenit Anom (Kyoto) 2021; 61:199-201. [PMID: 34125974 DOI: 10.1111/cga.12433] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/18/2021] [Accepted: 06/01/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Mostafa Kotb
- Faculty of Medicine, Pediatric Surgery Department, Alexandria University, Alexandria, Egypt
| | - Ahmed Aboelela
- Faculty of Medicine, Pediatric Surgery Department, Alexandria University, Alexandria, Egypt
| | - Ahmed Eshiba
- Faculty of Medicine, Pediatric Surgery Department, Alexandria University, Alexandria, Egypt
| | - Eman Sheta
- Faculty of Medicine, Pathology Department, Alexandria University, Alexandria, Egypt
| | - Dina Abdallah
- Faculty of Medicine, Pathology Department, Alexandria University, Alexandria, Egypt
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6
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Abstract
Abstract
Background
Surgery for clitoral reduction has been practised for over half a century. The aim of clitoral surgery is to achieve normal clitoral morphology without compromising sexual function. To achieve these purposes, many techniques were developed since Young first reported reduction clitoroplasty in 1937. As the importance of the neurovascular bundle was realized, attempts were made to preserve this structure aiming at preservation of the sensory supply to the clitoris to achieve sexual satisfaction.
Methods
The study was conducted on six patients with congenital adrenal hyperplasia, who were operated upon with reduction clitoroplasty with neurovascular bundle preservation as a part of the genital reconstruction; surgery was done by single author (first author). Whole surgically removed corporal bodies were processed. Examination of the sections was done for the presence of nerve bundles related to the anatomical location of the neurovascular bundle using S100 immunohistochemical staining.
Results
In four cases, the presence of nerve fibers in the removed part of the corpus stained by S100 was high on the dorsal surface, with the presence of large nerve fibers (score 3–4), and low on the ventral surface with the presence of small nerve fibers (score 1). In the other two cases, it was low on both surfaces (score 1).
Conclusion
Subfacial clitoroplasty technique carries an inevitable risk of nerve injury and should be replaced by the subtunical technique.
Level of evidence
IV. Type of study: case series with no comparison group.
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7
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Albawaliz A, Abdallah D, Seehra GK, Elkafrawy A, Al-Shyoukh A. Asymmetric Lower Extremity Involvement and Facial Palsy: An Atypical Case of Guillain-Barre Syndrome. Cureus 2020; 12:e8912. [PMID: 32742878 PMCID: PMC7389875 DOI: 10.7759/cureus.8912] [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] [Indexed: 11/30/2022] Open
Abstract
Guillain-Barre syndrome (GBS) represents the most common cause of acute flaccid paralysis and is characterized by muscle weakness frequently accompanied by respiratory and bulbar paralysis which oftentimes can be life-threatening. Early recognition and intervention are essential to prevent potential complications and help hasten recovery. Herein, we report a case of a middle-aged female who presented with nonspecific gastrointestinal symptoms that were shortly followed by a unique combination of new-onset facial diplegia and asymmetric lower extremity areflexia. Treatment with intravenous immunoglobulins (IVIG) was initiated following a prompt diagnosis of GBS was made. Clinicians should always be vigilant about the possibility of GBS in the appropriate clinical setting and be aware of the essentials of management of this potentially treatable disease.
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El-Ganainy SO, El-Mallah A, Abdallah D, Khattab MM, El-Khatib AS, Mohy El-Din MM. A novel investigation of statins myotoxic mechanism: effect of atorvastatin on respiratory muscles in hypoxic environment. Toxicol Lett 2019; 305:58-64. [PMID: 30735765 DOI: 10.1016/j.toxlet.2019.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 01/12/2019] [Accepted: 02/04/2019] [Indexed: 10/27/2022]
Abstract
Myopathy is a well-known adverse effect of statins, affecting a large sector of statins users. The reported experimental data emphasized on mechanistic study of statin myopathy on large muscles. Clinically, both large muscles and respiratory muscles are reported to be involved in the myotoxic profile of statins. However, the experimental data investigating the myopathic mechanism on respiratory muscles are still lacking. The present work aimed to study the effect of atorvastatin treatment on respiratory muscles using rat isolated hemidiaphragm in normoxic & hypoxic conditions. The contractile activity of isolated hemidiaphragm in rats treated with atorvastatin for 21 days was investigated using nerve stimulated technique. Muscle twitches, train of four and tetanic stimulation was measured in normoxic, hypoxic and reoxygenation conditions. Atorvastatin significantly increased the tetanic fade, a measure of muscle fatigability, in hypoxic conditions. Upon reoxygenation, rat hemidiaphragm regains its normal contractile profile. Co-treatment with coenzyme Q10 showed significant improvement in defective diaphragmatic contractility in hypoxic conditions. This work showed that atorvastatin treatment rapidly deteriorates diaphragmatic activity in low oxygen environment. The mitochondrial respiratory dysfunction is probably the mechanism behind such finding. This was supported by the improvement of muscle contractile activity following CoQ10 co-treatment.
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Affiliation(s)
- Samar O El-Ganainy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria, Egypt.
| | - Ahmed El-Mallah
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Dina Abdallah
- Department of Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Mahmoud M Khattab
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Aiman S El-Khatib
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Mahmoud M Mohy El-Din
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria, Egypt
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9
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Abdallah D, Skafi N, Hamade E, Borel M, Reibel S, Vitale N, El Jamal A, Bougault C, Laroche N, Vico L, Badran B, Hussein N, Magne D, Buchet R, Brizuela L, Mebarek S. Effects of phospholipase D during cultured osteoblast mineralization and bone formation. J Cell Biochem 2018; 120:5923-5935. [DOI: 10.1002/jcb.27881] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 09/20/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Dina Abdallah
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
- Lebanese University, Faculty of Sciences, Campus Rafic Hariri‐Hadath‐Beirut‐Liban Genomic and Health Laboratory/PRASE‐EDST Beirut Lebanon
| | - Najwa Skafi
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
- Lebanese University, Faculty of Sciences, Campus Rafic Hariri‐Hadath‐Beirut‐Liban Genomic and Health Laboratory/PRASE‐EDST Beirut Lebanon
| | - Eva Hamade
- Lebanese University, Faculty of Sciences, Campus Rafic Hariri‐Hadath‐Beirut‐Liban Genomic and Health Laboratory/PRASE‐EDST Beirut Lebanon
| | - Mathieu Borel
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
| | | | - Nicolas Vitale
- Centre National de la Recherche Scientifique (CNRS) UPR‐3212 and Université de Strasbourg Strasbourg France
| | - Alaeddine El Jamal
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
| | - Carole Bougault
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
| | - Norbert Laroche
- Univ Lyon, Université Jean Monnet, Faculté de Médecine, Campus Santé Innovation, INSERM UMR 1059, Sainbiose, LBTO Saint‐Etienne France
| | - Laurence Vico
- Univ Lyon, Université Jean Monnet, Faculté de Médecine, Campus Santé Innovation, INSERM UMR 1059, Sainbiose, LBTO Saint‐Etienne France
| | - Bassam Badran
- Lebanese University, Faculty of Sciences, Campus Rafic Hariri‐Hadath‐Beirut‐Liban Genomic and Health Laboratory/PRASE‐EDST Beirut Lebanon
| | - Nader Hussein
- Lebanese University, Faculty of Sciences, Campus Rafic Hariri‐Hadath‐Beirut‐Liban Genomic and Health Laboratory/PRASE‐EDST Beirut Lebanon
| | - David Magne
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
| | - Rene Buchet
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
| | - Leyre Brizuela
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
| | - Saida Mebarek
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
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Velard F, Jourdain ML, Abdallah D, Jacquot J, Ronan N, McCarthy Y, Flanagan E, Plant B. Overexpression of RANK and M-CSFR in Monocytes of G551D-Bearing Patients with Cystic Fibrosis. Am J Respir Crit Care Med 2018; 198:968-970. [DOI: 10.1164/rccm.201803-0415le] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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11
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Skafi N, Abdallah D, Soulage C, Reibel S, Vitale N, Hamade E, Faour W, Magne D, Badran B, Hussein N, Buchet R, Brizuela L, Mebarek S. Phospholipase D: A new mediator during high phosphate-induced vascular calcification associated with chronic kidney disease. J Cell Physiol 2018; 234:4825-4839. [PMID: 30207376 DOI: 10.1002/jcp.27281] [Citation(s) in RCA: 14] [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: 04/05/2018] [Accepted: 07/26/2018] [Indexed: 01/31/2023]
Abstract
Vascular calcification (VC) is the pathological accumulation of calcium phosphate crystals in one of the layers of blood vessels, leading to loss of elasticity and causing severe calcification in vessels. Medial calcification is mostly seen in patients with chronic kidney disease (CKD) and diabetes. Identification of key enzymes and their actions during calcification will contribute to understand the onset of pathological calcification. Phospholipase D (PLD1, PLD2) is active at the earlier steps of mineralization in osteoblasts and chondrocytes. In this study, we aimed to determine their effects during high-phosphate treatment in mouse vascular smooth muscle cell line MOVAS, in the ex vivo model of the rat aorta, and in the in vivo model of adenine-induced CKD. We observed an early increase in PLD1 gene and protein expression along with the increase in the PLD activity in vascular muscle cell line, during calcification induced by ascorbic acid and β-glycerophosphate. Inhibition of PLD1 by the selective inhibitor VU0155069, or the pan-PLD inhibitor, halopemide, prevented calcification. The mechanism of PLD activation is likely to be protein kinase C (PKC)-independent since bisindolylmaleimide X hydrochloride, a pan-PKC inhibitor, did not affect the PLD activity. In agreement, we found an increase in Pld1 gene expression and PLD activity in aortic explant cultures treated with high phosphate, whereas PLD inhibition by halopemide decreased calcification. Finally, an increase in both Pld1 and Pld2 expression occurred simultaneously with the appearance of VC in a rat model of CKD. Thus, PLD, especially PLD1, promotes VC in the context of CKD and could be an important target for preventing onset or progression of VC.
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Affiliation(s)
- Najwa Skafi
- University of Lyon, Université Claude Bernard Lyon 1 (UCBL), CNRS UMR 5246, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS), Lyon, France.,Genomic and Health Laboratory/PRASE-EDST Campus Rafic Hariri-Hadath-Beirut-Liban, Faculty of Sciences, Lebanese University (LU), Beirut, Lebanon
| | - Dina Abdallah
- University of Lyon, Université Claude Bernard Lyon 1 (UCBL), CNRS UMR 5246, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS), Lyon, France.,Genomic and Health Laboratory/PRASE-EDST Campus Rafic Hariri-Hadath-Beirut-Liban, Faculty of Sciences, Lebanese University (LU), Beirut, Lebanon
| | - Christophe Soulage
- University of Lyon, CarMeN, INSERM U1060, INRA U1397, Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université Claude Bernard Lyon 1, Villeurbanne, France
| | | | - Nicolas Vitale
- Institut des Neurosciences Cellulaires et Intégratives (INCI), UPR-3212 CNRS and Université de Strasbourg, Strasbourg, France
| | - Eva Hamade
- Genomic and Health Laboratory/PRASE-EDST Campus Rafic Hariri-Hadath-Beirut-Liban, Faculty of Sciences, Lebanese University (LU), Beirut, Lebanon
| | - Wissam Faour
- School of Medicine, Lebanese American University (LAU), Byblos, Lebanon
| | - David Magne
- University of Lyon, Université Claude Bernard Lyon 1 (UCBL), CNRS UMR 5246, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS), Lyon, France
| | - Bassam Badran
- Genomic and Health Laboratory/PRASE-EDST Campus Rafic Hariri-Hadath-Beirut-Liban, Faculty of Sciences, Lebanese University (LU), Beirut, Lebanon
| | - Nader Hussein
- Genomic and Health Laboratory/PRASE-EDST Campus Rafic Hariri-Hadath-Beirut-Liban, Faculty of Sciences, Lebanese University (LU), Beirut, Lebanon
| | - Rene Buchet
- University of Lyon, Université Claude Bernard Lyon 1 (UCBL), CNRS UMR 5246, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS), Lyon, France
| | - Leyre Brizuela
- University of Lyon, Université Claude Bernard Lyon 1 (UCBL), CNRS UMR 5246, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS), Lyon, France
| | - Saida Mebarek
- University of Lyon, Université Claude Bernard Lyon 1 (UCBL), CNRS UMR 5246, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS), Lyon, France
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Atta H, Hegab H, El-Ashkar O, Meleis M, Abdallah D. Perioperative Algorithm as a Novel Method for Lymph Node Assessment in Stage I Endometrial Cancer. Kasr-Al-Aini J of Clin Onc and Nuc Med 2018. [DOI: 10.21608/resoncol.2018.3345.1053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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13
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Abdallah D, Jourdain ML, Braux J, Guillaume C, Gangloff SC, Jacquot J, Velard F. An Optimized Method to Generate Human Active Osteoclasts From Peripheral Blood Monocytes. Front Immunol 2018; 9:632. [PMID: 29670619 PMCID: PMC5893639 DOI: 10.3389/fimmu.2018.00632] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 03/13/2018] [Indexed: 11/23/2022] Open
Abstract
Osteoclasts (OCs), the bone-resorbing cells, play a key role in skeletal development and adult bone remodeling. They also participate in the pathogenesis of various bone disorders. One of the major technical difficulties in the generation of OCs, when working on human material, is the ability to achieve large differentiation of mature OCs from human peripheral blood mononuclear cells (PBMCs). Access to a standardized source of active OCs is needed to better analyze the roles of human OCs. The aim of this study was to develop a procedure yielding active and mature OCs from fresh human PBMCs. We therefore examined the differentiation of PBMCs to OCs in different cell culture media, using non-stripped and charcoal-stripped sera in the presence of macrophage colony-stimulating factor (M-CSF) and receptor activator of nuclear factor kappa-B ligand (RANKL). We also studied the effects of vitamin D3 in the differentiation level of PBMCs to OCs. Phalloidin-AlexaFluor®488/DAPI fluorescent stainings and dentin resorption analyses by scanning electron microscopy were used to identify the number and size of differentiated OCs, number of nuclei per cell and resorption activities of OCs for a 7–14–21-day culture period. This study reports an optimized method for an efficient production of human active OCs from a low seeding density of PBMCs, after a 14-day culture period by using a medium containing fetal bovine charcoal-stripped serum in the presence of M-CSF and RANKL, and in the absence of vitamin D3.
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Affiliation(s)
- Dina Abdallah
- EA 4691 "Biomatériaux et Inflammation en site osseux" SFR CAP-Santé (FED 4231), Université Reims Champagne-Ardenne, Reims, France
| | - Marie-Laure Jourdain
- EA 4691 "Biomatériaux et Inflammation en site osseux" SFR CAP-Santé (FED 4231), Université Reims Champagne-Ardenne, Reims, France
| | - Julien Braux
- EA 4691 "Biomatériaux et Inflammation en site osseux" SFR CAP-Santé (FED 4231), Université Reims Champagne-Ardenne, Reims, France
| | - Christine Guillaume
- EA 4691 "Biomatériaux et Inflammation en site osseux" SFR CAP-Santé (FED 4231), Université Reims Champagne-Ardenne, Reims, France
| | - Sophie C Gangloff
- EA 4691 "Biomatériaux et Inflammation en site osseux" SFR CAP-Santé (FED 4231), Université Reims Champagne-Ardenne, Reims, France
| | - Jacky Jacquot
- EA 4691 "Biomatériaux et Inflammation en site osseux" SFR CAP-Santé (FED 4231), Université Reims Champagne-Ardenne, Reims, France
| | - Frédéric Velard
- EA 4691 "Biomatériaux et Inflammation en site osseux" SFR CAP-Santé (FED 4231), Université Reims Champagne-Ardenne, Reims, France
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14
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El-Ganainy SO, El-Mallah A, Abdallah D, Khattab MM, Mohy El-Din MM, El-Khatib AS. Rosuvastatin safety: An experimental study of myotoxic effects and mitochondrial alterations in rats. Toxicol Lett 2016; 265:23-29. [PMID: 27815113 DOI: 10.1016/j.toxlet.2016.10.017] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 10/28/2016] [Accepted: 10/31/2016] [Indexed: 01/14/2023]
Abstract
Myopathy is the most commonly reported adverse effect of statins. All statins are associated with myopathy, though with different rates. Rosuvastatin is a potent statin reported to induce myopathy comparable to earlier statins. However, in clinical practice most patients could tolerate rosuvastatin over other statins. This study aimed to evaluate the myopathic pattern of rosuvastatin in rats using biochemical, functional and histopathological examinations. The possible deleterious effects of rosuvastatin on muscle mitochondria were also examined. The obtained results were compared to myopathy induced by atorvastatin in equimolar dose. Results showed that rosuvastatin induced a rise in CK, a slight increase in myoglobin level together with mild muscle necrosis. Motor activity, assessed by rotarod, showed that rosuvastatin decreased rats' performance. All these manifestations were obviously mild compared to the prominent effects of atorvastatin. Parallel results were obtained in mitochondrial dysfunction parameters. Rosuvastatin only induced a slight increase in LDH and a minor decrease in ATP (∼14%) and pAkt (∼12%). On the other hand, atorvastatin induced an increase in LDH, lactate/pyruvate ratio and a pronounced decline in ATP (∼80%) and pAkt (∼65%). These findings showed that rosuvastatin was associated with mild myotoxic effects in rats, especially when compared to atorvastatin.
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Affiliation(s)
- Samar O El-Ganainy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Pharos University, Alexandria, Egypt.
| | - Ahmed El-Mallah
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Pharos University, Alexandria, Egypt
| | - Dina Abdallah
- Department of Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Mahmoud M Khattab
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Mahmoud M Mohy El-Din
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Pharos University, Alexandria, Egypt
| | - Aiman S El-Khatib
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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El-Ganainy SO, El-Mallah A, Abdallah D, Khattab MM, Mohy El-Din MM, El-Khatib AS. Elucidation of the mechanism of atorvastatin-induced myopathy in a rat model. Toxicology 2016; 359-360:29-38. [PMID: 27345130 DOI: 10.1016/j.tox.2016.06.015] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 06/16/2016] [Accepted: 06/23/2016] [Indexed: 12/31/2022]
Abstract
Myopathy is among the well documented and the most disturbing adverse effects of statins. The underlying mechanism is still unknown. Mitochondrial dysfunction related to coenzyme Q10 decline is one of the proposed theories. The present study aimed to investigate the mechanism of atorvastatin-induced myopathy in rats. In addition, the mechanism of the coenzyme Q10 protection was investigated with special focus of mitochondrial alterations. Sprague-Dawely rats were treated orally either with atorvastatin (100mg/kg) or atorvastatin and coenzyme Q10 (100mg/kg). Myopathy was assessed by measuring serum creatine kinase (CK) and myoglobin levels together with examination of necrosis in type IIB fiber muscles. Mitochondrial dysfunction was evaluated by measuring muscle lactate/pyruvate ratio, ATP level, pAkt as well as mitochondrial ultrastructure examination. Atorvastatin treatment resulted in a rise in both CK (2X) and myoglobin (6X) level with graded degrees of muscle necrosis. Biochemical determinations showed prominent increase in lactate/pyruvate ratio and a decline in both ATP (>80%) and pAkt (>50%) levels. Ultrastructure examination showed mitochondrial swelling with disrupted organelle membrane. Co-treatment with coenzyme Q10 induced reduction in muscle necrosis as well as in CK and myoglobin levels. In addition, coenzyme Q10 improved all mitochondrial dysfunction parameters including mitochondrial swelling and disruption. These results presented a model for atorvastatin-induced myopathy in rats and proved that mitochondrial dysfunction is the main contributor in statin-myopathy pathophysiology.
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Affiliation(s)
- Samar O El-Ganainy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Pharos University, Alexandria, Egypt.
| | - Ahmed El-Mallah
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Pharos University, Alexandria, Egypt
| | - Dina Abdallah
- Department of Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Mahmoud M Khattab
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Mahmoud M Mohy El-Din
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Pharos University, Alexandria, Egypt
| | - Aiman S El-Khatib
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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Ben Tamarzizt H, Walker D, Ben Mustapha S, Abdallah D, Baraket G, Salhi Hannachi A, Zehdi Azzouzi S. DNA variation and polymorphism in Tunisian plum species (Prunus spp): contribution of flow cytometry and molecular markers. Genet Mol Res 2015; 14:18034-46. [PMID: 26782451 DOI: 10.4238/2015.december.22.30] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Plums (Prunus spp) are among the most important stone fruit crops in the world. European (Prunus domestica) and Japanese (Prunus salicina) plums are characterized by different levels of ploidy. Because genetic variability is the prerequisite for any plant-breeding program, we aimed to establish the taxonomic status of Tunisian plums and study their genetic variability. The nuclear DNA content of 45 wild and cultivated Tunisian plums was determined by flow cytometry. Two arbitrary primers (AD10, AD17) were used to elaborate SCAR markers useful to identify plum species. Three wild trees, Zenou 1, Zenou 6, and Zenou 3, which had 2C nuclear DNA contents of 1.99, 2.05, and 2.13 pg, were shown to be hexaploid (2n = 6x = 48), whereas the others were diploid (2n = 2x = 16). These results suggest that the three hexaploid wild plums belong to Prunus insititia, and the others belong to Prunus salicina. No SCAR markers were revealed using the AD10 and AD17 RAPD primers in relation to the ploidy of plums. We note also that AD17 primer appears to be the most informative concerning the genetic diversity. Morphological and pomological traits revealed similarity between introduced and Tunisian plum cultivars. Despite the significant morphological differences found, all the cultivars studied belong to P. salicina. The information obtained in this analysis provided on local plum genetic resources will be helpful to establish a core collection, to evaluate genetic diversity, and to initiate an improvement and selection program.
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Affiliation(s)
- H Ben Tamarzizt
- Laboratory of Molecular Genetics, Immunology & Biotechnology, Faculty of Sciences of Tunis, University of Tunis El Manar, Campus University, El Manar, Tunis, Tunisia
| | - D Walker
- Departamento de Recursos Naturales, Instituto Murciano de Investigación y Desarrrollo Agrario y Alimentario (IMIDA), Estación Sericícola, Calle Mayor s/n, La Alberca, Murcia, Spain
| | - S Ben Mustapha
- Laboratory of Molecular Genetics, Immunology & Biotechnology, Faculty of Sciences of Tunis, University of Tunis El Manar, Campus University, El Manar, Tunis, Tunisia
| | - D Abdallah
- Laboratory of Molecular Genetics, Immunology & Biotechnology, Faculty of Sciences of Tunis, University of Tunis El Manar, Campus University, El Manar, Tunis, Tunisia
| | - G Baraket
- Laboratory of Molecular Genetics, Immunology & Biotechnology, Faculty of Sciences of Tunis, University of Tunis El Manar, Campus University, El Manar, Tunis, Tunisia
| | - A Salhi Hannachi
- Laboratory of Molecular Genetics, Immunology & Biotechnology, Faculty of Sciences of Tunis, University of Tunis El Manar, Campus University, El Manar, Tunis, Tunisia
| | - S Zehdi Azzouzi
- Laboratory of Molecular Genetics, Immunology & Biotechnology, Faculty of Sciences of Tunis, University of Tunis El Manar, Campus University, El Manar, Tunis, Tunisia
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Moghnieh R, Fawaz I, Mugharbil A, Jisr T, Abdallah D, Ibrahim A. Clinical outcome and adverse events associated with empiric and pre-emptive use of amphotericin B lipid complex in a single center in lebanon. Bone Marrow Transplant 2015; 51:598-600. [PMID: 26618549 DOI: 10.1038/bmt.2015.276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- R Moghnieh
- Department of Internal Medicine, Makassed General Hospital, Beirut, Lebanon.,Division of Infectious Diseases, Department of Internal Medicine, Ain WaZein Hospital, Shouf, Lebanon.,Infection Control Program, Ain WaZein Hospital, Shouf, Lebanon.,Faculty of Medical Sciences, Lebanese University, Beirut, Lebanon
| | - I Fawaz
- Department of Internal Medicine, Makassed General Hospital, Beirut, Lebanon
| | - A Mugharbil
- Division of Hematology-Oncology, Department of Internal Medicine, Makassed General Hospital, Beirut, Lebanon
| | - T Jisr
- Department of Laboratory Medicine, Makassed General Hospital, Beirut, Lebanon
| | - D Abdallah
- Department of Pharmacy, Makassed General Hospital, Beirut, Lebanon
| | - A Ibrahim
- Division of Hematology-Oncology, Department of Internal Medicine, Makassed General Hospital, Beirut, Lebanon
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18
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Moghnieh R, Siblani L, Ghadban D, El Mchad H, Zeineddine R, Abdallah D, Ziade F, Sinno L, Kiwan O, Kerbaj F, El Imad Z. Extensively drug-resistant Acinetobacter baumannii in a Lebanese intensive care unit: risk factors for acquisition and determination of a colonization score. J Hosp Infect 2015; 92:47-53. [PMID: 26616413 DOI: 10.1016/j.jhin.2015.10.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [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: 07/28/2015] [Accepted: 10/11/2015] [Indexed: 10/22/2022]
Abstract
BACKGROUND Acinetobacter baumannii (AB) has emerged as an important nosocomial pathogen causing worldwide hospital outbreaks. It has become a prototype of extensively drug-resistant (XDR) organisms. AIM To identify risk factors for acquisition of XDR-AB and to develop a colonization risk score in intensive care unit (ICU) patients in a Lebanese tertiary care centre where XDR-AB causes intermittent outbreaks. METHODS This retrospective study included 257 patients with baseline negative screening cultures for XDR-AB admitted to a seven-bed ICU from July 2012 to July 2013. Patients' demographic data and clinical characteristics were collected from the hospital's electronic medical records. Univariate analysis of potential risk factors was performed followed by multivariate analysis to determine parameters to be included in the colonization risk score. FINDINGS The rate of XDR-AB acquisition was 15.6%. Multivariate analysis identified urinary catheter placement >6 days (odds ratio: 16.98; 95% confidence interval: 3.96-49.56; P<0.0001), ICU contact pressure for >4 days (2.38; 1.48-3.57; P=0.001), presence of gastrostomy tube (5.44; 1.43-20.68; P=0.013), and previous use of carbapenems or piperacillin-tazobactam (4.20; 1.65-11.81; P=0.002) as parameters to be included in the colonization score. The risk of XDR-AB acquisition was 0, 5.6%, 17.2%, 56.8%, and 80% in the presence of a score of 0, 1, 2, 3, and 4 respectively. A score of 4 indicates high probability of XDR-AB acquisition, suggesting that patient isolation is required; zero indicates a low probability of XDR-AB acquisition. CONCLUSION Risk factors could be used to develop a score to decide which patients need isolation to limit the spread of XDR-AB.
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Affiliation(s)
- R Moghnieh
- Ain WaZein Hospital, Shouf, Lebanon; Faculty of Medicine, Lebanese University, Beirut, Lebanon; Department of Internal Medicine, Makassed General Hospital, Beirut, Lebanon.
| | - L Siblani
- Faculty of Medicine, Lebanese University, Beirut, Lebanon
| | | | - H El Mchad
- Faculty of Medicine, Beirut Arab University, Beirut, Lebanon
| | | | - D Abdallah
- Pharmacy Department, Makassed General Hospital, Beirut, Lebanon
| | - F Ziade
- Faculty of Public Health, Lebanese University, Beirut, Lebanon
| | - L Sinno
- Research Coordinator, Makassed General Hospital, Beirut, Lebanon
| | - O Kiwan
- Ain WaZein Hospital, Shouf, Lebanon
| | - F Kerbaj
- Ain WaZein Hospital, Shouf, Lebanon; Faculty of Medicine, Lebanese University, Beirut, Lebanon
| | - Z El Imad
- Ain WaZein Hospital, Shouf, Lebanon; Faculty of Medicine, Lebanese University, Beirut, Lebanon
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Ben Mustapha S, Ben Tamarzizt H, Baraket G, Abdallah D, Salhi Hannachi A. Genetic diversity and differentiation in Prunus species (Rosaceae) using chloroplast and mitochondrial DNA CAPS markers. Genet Mol Res 2015; 14:4177-88. [PMID: 25966190 DOI: 10.4238/2015.april.27.33] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Chloroplast (cpDNA) and mitochondrial DNA (mtDNA) were analyzed to establish genetic relationships among Tunisian plum cultivars using the polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) technique. Two mtDNA regions (nad 1 b/c and nad 4 1/2) and a cpDNA region (trnL-trnF) were amplified and digested using restriction enzymes. Seventy and six polymorphic sites were revealed in cpDNA and mtDNA, respectively. As a consequence, cpDNA appears to be more polymorphic than mtDNA. The unweighted pair group method with arithmetic mean (UPGMA) dendrogram showed that accessions were distributed independently of their geographical origin, and introduced and local cultivars appear to be closely related. Both UPGMA and principal component analysis grouped Tunisian plum accessions into similar clusters. The analysis of the pooled sequences allowed the detection of 17 chlorotypes and 12 mitotypes. The unique haplotypes detected for cultivars are valuable for management and preservation of the plum local resources. From this study, PCR-RFLP analysis appears to be a useful approach to detect and identify cytoplasmic variation in plum trees. Our results also provide useful information for the management of genetic resources and to establish a program to improve the genetic resources available for plums.
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Affiliation(s)
- S Ben Mustapha
- Laboratoire de Génétique Moléculaire, Immunologie & Biotechnologie, Faculté des Sciences de Tunis, Université Tunis El Manar, Campus Universitaire, El Manar Tunis, Tunisie
| | - H Ben Tamarzizt
- Laboratoire de Génétique Moléculaire, Immunologie & Biotechnologie, Faculté des Sciences de Tunis, Université Tunis El Manar, Campus Universitaire, El Manar Tunis, Tunisie
| | - G Baraket
- Laboratoire de Génétique Moléculaire, Immunologie & Biotechnologie, Faculté des Sciences de Tunis, Université Tunis El Manar, Campus Universitaire, El Manar Tunis, Tunisie
| | - D Abdallah
- Laboratoire de Génétique Moléculaire, Immunologie & Biotechnologie, Faculté des Sciences de Tunis, Université Tunis El Manar, Campus Universitaire, El Manar Tunis, Tunisie
| | - A Salhi Hannachi
- Laboratoire de Génétique Moléculaire, Immunologie & Biotechnologie, Faculté des Sciences de Tunis, Université Tunis El Manar, Campus Universitaire, El Manar Tunis, Tunisie
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20
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Mustapha SB, Ben Tamarzizt H, Baraket G, Abdallah D, Salhi-Hannachi A. Cytoplasmic polymorphism and evolutionary history of plum cultivars: Insights from chloroplast DNA sequence variation of trnL-trnF spacer and aggregated trnL intron & trnL-trnF spacer. Genet Mol Res 2015; 14:3964-79. [PMID: 25966168 DOI: 10.4238/2015.april.27.11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We screened for polymorphisms of the non-coding region of plastid DNA in plum trees. Sequencing data from the trnL-trnF chloroplast region were used to reveal a pattern of diversity, establish phylogenetic relationships, and test the selection pressure or evolutionary demography scenario for plastome DNA. The size of the non-coding regions varied from 398 to 563 and 865 to 1084 bases pairs for the trnL-trnF spacer and combined sequences, respectively. The average GC contents were 33.8 and 34.4% in the spacer and pooled sequences, respectively. Genetic distances calculated within the plums were 0.077 and 0.254, on average, for the trnL spacer and combined sequences, respectively. The neighbor-joining trees showed clustering relationships among cultivars that were independent of their geographic origins and designations. The neutrality tests and site-frequency spectra indicated that spacer and pooled sequences fit the neutral theory model at equilibrium between mutation and genetic drift and reject the hypothesis of a recent demographic expansion. The mismatch distribution shows variation patterns, thus providing evidence of an important genetic diversity explained by an excess of intermediate variants that occurred in the sequences analyzed. Further implications of the findings with regard to plum germplasm management and its utilization in breeding programs are also discussed.
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Affiliation(s)
- S B Mustapha
- Laboratoire de Génétique Moléculaire, Immunologie & Biotechnologie, Faculté des Sciences de Tunis. Université Tunis El Manar, Tunis, Tunisie
| | - H Ben Tamarzizt
- Laboratoire de Génétique Moléculaire, Immunologie & Biotechnologie, Faculté des Sciences de Tunis. Université Tunis El Manar, Tunis, Tunisie
| | - G Baraket
- Laboratoire de Génétique Moléculaire, Immunologie & Biotechnologie, Faculté des Sciences de Tunis. Université Tunis El Manar, Tunis, Tunisie
| | - D Abdallah
- Laboratoire de Génétique Moléculaire, Immunologie & Biotechnologie, Faculté des Sciences de Tunis. Université Tunis El Manar, Tunis, Tunisie
| | - A Salhi-Hannachi
- Laboratoire de Génétique Moléculaire, Immunologie & Biotechnologie, Faculté des Sciences de Tunis. Université Tunis El Manar, Tunis, Tunisie
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Ben Tamarzizt H, Ben Mustapha S, Baraket G, Abdallah D, Salhi-Hannachi A. Assessment of genetic diversity and relationships among wild and cultivated Tunisian plums (Prunus spp) using random amplified microsatellite polymorphism markers. Genet Mol Res 2015; 14:1942-56. [PMID: 25867340 DOI: 10.4238/2015.march.20.4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The usefulness of random amplified microsatellite polymorphism markers to study the genetic diversity and relationships among cultivars belonging to Prunus salicina and P. domestica and their wild relatives (P. insititia and P. spinosa) was investigated. A total of 226 of 234 bands were polymorphic (96.58%). The 226 random amplified microsatellite polymorphism markers were screened using 15 random amplified polymorphic DNA and inter-simple sequence repeat primers combinations for 54 Tunisian plum accessions. The percentage of polymorphic bands (96.58%), the resolving power of primers values (135.70), and the polymorphic information content demonstrated the efficiency of the primers used in this study. The genetic distances between accessions ranged from 0.18 to 0.79 with a mean of 0.24, suggesting a high level of genetic diversity at the intra- and interspecific levels. The unweighted pair group with arithmetic mean dendrogram and principal component analysis discriminated cultivars efficiently and illustrated relationships and divergence between spontaneous, locally cultivated, and introduced plum types. These procedures showed continuous variation that occurs independently of the status of the species and geographical origin of the plums. In this study, random amplified microsatellite polymorphism was found to be as a reliable molecular marker for fingerprinting and for examining the diversity study of the plum and its relatives.
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Affiliation(s)
- H Ben Tamarzizt
- Laboratory of Molecular Genetics, Immunology & Biotechnology, Faculty of Sciences of Tunis, University of Tunis El Manar, El Manar, Tunis, Tunisia
| | - S Ben Mustapha
- Laboratory of Molecular Genetics, Immunology & Biotechnology, Faculty of Sciences of Tunis, University of Tunis El Manar, El Manar, Tunis, Tunisia
| | - G Baraket
- Laboratory of Molecular Genetics, Immunology & Biotechnology, Faculty of Sciences of Tunis, University of Tunis El Manar, El Manar, Tunis, Tunisia
| | - D Abdallah
- Laboratory of Molecular Genetics, Immunology & Biotechnology, Faculty of Sciences of Tunis, University of Tunis El Manar, El Manar, Tunis, Tunisia
| | - A Salhi-Hannachi
- Laboratory of Molecular Genetics, Immunology & Biotechnology, Faculty of Sciences of Tunis, University of Tunis El Manar, El Manar, Tunis, Tunisia
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Abdallah D, Hamade E, Merhi RA, Bassam B, Buchet R, Mebarek S. Fatty acid composition in matrix vesicles and in microvilli from femurs of chicken embryos revealed selective recruitment of fatty acids. Biochem Biophys Res Commun 2014; 446:1161-4. [PMID: 24685481 DOI: 10.1016/j.bbrc.2014.03.069] [Citation(s) in RCA: 9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 03/17/2014] [Indexed: 10/25/2022]
Abstract
Hypertrophic chondrocytes participate in matrix mineralization by releasing matrix vesicles (MVs). These MVs, by accumulating Ca(2+) and phosphate initiate the formation of hydroxyapatite. To determine the types of lipids essential for mineralization, we analyzed fatty acids (FAs) in MVs, microvilli and in membrane fractions of chondrocytes isolated from femurs of chicken embryos. The FA composition in the MVs was almost identical to that in microvilli, indicating that the MVs originated from microvilli. These fractions contained more monounsaturated FAs especially oleic acid than in membrane homogenates of chondrocytes. They were enriched in 5,8,11-eicosatrienoic acid (20:3n-9), in eicosadienoic acid (20:2n-6), and in arachidonic acid (20:4n-6). In contrast, membrane homogenates from chondrocytes were enriched in 20:1n-9, 18:3n-3, 22:5n-3 and 22:5n-6. Due to their relatively high content in MVs and to their selective recruitment within microvilli from where MV originate, we concluded that 20:2n-6 and 20:3n-9 (pooled values), 18:1n-9 and 20:4n-6 are essential for the biogenesis of MVs and for bone mineralization.
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Affiliation(s)
- Dina Abdallah
- Université de Lyon, Lyon F-69361, France; Université Lyon 1, Villeurbanne F-69622, France; INSA-Lyon, Villeurbanne F-69622, France; CPE Lyon, Villeurbanne F-69616, France; ICBMS CNRS UMR 5246, Villeurbanne F-69622, France; Genomic and Health Laboratory/PRASE-EDST Campus Rafic Hariri-Hadath-Beirut-Liban, Faculty of Sciences, Lebanese University, Beirut 999095, Lebanon
| | - Eva Hamade
- Genomic and Health Laboratory/PRASE-EDST Campus Rafic Hariri-Hadath-Beirut-Liban, Faculty of Sciences, Lebanese University, Beirut 999095, Lebanon
| | - Raghida Abou Merhi
- Department of Biochemistry, Laboratory of Immunology, EDST-PRASE, Lebanese University, Faculty of Sciences, Hadath, Beirut, Lebanon
| | - Badran Bassam
- Genomic and Health Laboratory/PRASE-EDST Campus Rafic Hariri-Hadath-Beirut-Liban, Faculty of Sciences, Lebanese University, Beirut 999095, Lebanon
| | - René Buchet
- Université de Lyon, Lyon F-69361, France; Université Lyon 1, Villeurbanne F-69622, France; INSA-Lyon, Villeurbanne F-69622, France; CPE Lyon, Villeurbanne F-69616, France; ICBMS CNRS UMR 5246, Villeurbanne F-69622, France
| | - Saida Mebarek
- Université de Lyon, Lyon F-69361, France; Université Lyon 1, Villeurbanne F-69622, France; INSA-Lyon, Villeurbanne F-69622, France; CPE Lyon, Villeurbanne F-69616, France; ICBMS CNRS UMR 5246, Villeurbanne F-69622, France.
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23
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Tschada R, Abdallah D. Harnstauungsniere bei Aktinomykose (Strahlenpilzkrankheit). Aktuelle Urol 2002. [DOI: 10.1055/s-2002-32117] [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: 10/16/2022]
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24
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Tschada R, Abdallah D, Müller J, Löbelenz M. TVT - ein neues minimal invasives Verfahren zur Therapie der Stressinkontinenz der Frau. Technik und Ergebnisse unter Berücksichtigung des Anästhesieverfahrens. Aktuelle Urol 2002. [DOI: 10.1055/s-2002-23182] [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: 10/16/2022]
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Abstract
Gastric ulceration was induced in rats by i.p. injection of the non-steroidal anti-inflammatory drug (NSAID), indomethacin (IND) (30 mg kg(-1)). Pyloric ligation was carried out in each animal before injection to enable collection of the gastric juice. Three hours later, the animals were killed and their stomachs were removed. In the gastric juice, the amounts of mucin, pepsin and HCl were assessed. Gastric mucosa were scrapped for the determination of nitric oxide (NO) (as nitrite) after evaluation of the gastric ulcer index. The influence of arginine (ARG) (300 mg kg(-1)), a NO precursor, N(G)-nitro- l -arginine methyl ester (l -NAME) (50 mg kg(-1)), a non-selective constitutive nitric oxide synthase/inducible nitric oxide synthase (cNOS/iNOS) inhibitor, and the selective iNOS inhibitor aminoguanidine (AMG) (50 mg kg(-1)) were studied. Each NO modulator was injected i.p. 30 min before IND administration. Results indicated that IND elevated gastric acidity by 80% of the normal group, decreased non-significantly mucosal nitrite by 22% and exhibited a remarkably high ulcer index (chi = 17). Neither mucin nor pepsin levels were significantly altered. In comparison with the IND group, pretreatment with l -NAME caused a significant decrease in gastric HCl, further decrease in mucosal nitrite (50% of normal) and a two-fold increase in the ulcer index score (chi = 34), despite the decrease in HCl. AMG did not alter gastric acidity, decreased mucosal nitrite by 38% of the normal value and failed to alter significantly the ulcer index of IND. On the other hand, pretreatment with ARG did not alter the gastric acidity and raised mucosal nitrite by 10% above normal. Surprisingly, ARG improved the gastric ulcer score (chi = 1) almost similar to the normal score (chi = zero). Therefore, this study creates a new pathway for the potential treatment of NSAID gastric ulceration through modulation of NO synthesis, regardless of the effect on gastric acidity.
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Affiliation(s)
- M M Khattab
- Pharmacology Department, Faculty of Pharmacy, Cairo University, Egypt
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