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Sebai A, Elaifia R, Atri S, Hammami M, Haddad A, Kacem JM. Intrauterine device migration resulting in acute appendicitis: A case report. Int J Surg Case Rep 2024; 117:109515. [PMID: 38471208 PMCID: PMC10945246 DOI: 10.1016/j.ijscr.2024.109515] [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: 02/07/2024] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/14/2024] Open
Abstract
INTRODUCTION AND IMPORTANCE The Intrauterine Contraceptive Device (IUD), a widely used contraceptive since 1965, has demonstrated efficacy but is associated with complications such as bleeding, pain, and rare occurrences of perforation. This case report details an IUD migration into the peritoneal cavity, leading to acute appendicitis. CASE PRESENTATION A 33-year-old woman, with a history of IUD insertion 16 months prior, presented with pelvic pain. Gynecological examination and computed tomography, revealed the IUD intraperitoneal migration. The patient underwent laparoscopic extraction of the IUD which was embedded in the appendix and appendectomy, with an uneventful recovery. CLINICAL DISCUSSION This case emphasizes the complexity of IUD migration and its rare association with acute appendicitis, underscoring the importance of vigilant monitoring and prompt intervention. We also explored factors contributing to IUD perforation risk, imaging modalities for detection, and emphasizes the necessity of surgical removal upon confirmation. We highlight the fact that despite the atypical presentation with minimal symptoms, we should always consider emergency situations. Surgical intervention, particularly laparoscopy, may be the standard approach for managing migrated IUDs. CONCLUSION We insist about the critical need for thorough assessment and vigilance in managing IUD-related complications, emphasizing timely intervention to ensure patient safety. This case contributes valuable insights into the complexities surrounding IUD migration, urging healthcare professionals to remain attentive to potential injuries in patients with a history of IUD insertion and abdominal pain.
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Affiliation(s)
- A Sebai
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - R Elaifia
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia.
| | - S Atri
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - M Hammami
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - A Haddad
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - J M Kacem
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
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Atri S, Elaifia R, Sebai A, Hammami M, Haddad A, Kacem JM. Pleural migration of biliary stent 10 years following treatment of hepatic hydatic echinococcosis: A case report. Int J Surg Case Rep 2024; 117:109518. [PMID: 38492316 PMCID: PMC10955414 DOI: 10.1016/j.ijscr.2024.109518] [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: 01/27/2024] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/18/2024] Open
Abstract
INTRODUCTION Echinococcosis, caused by larval stages of taeniid cestodes, primarily affects the liver and is commonly treated surgically. However, a complication post-treatment is biliary fistula, necessitating interventions like biliary stents. While stent complications are recognized, proximal migration leading to pneumonia is exceptionally rare. This case report details an unusual occurrence of biliary stent migration years after hepatic hydatid echinococcosis treatment. CASE PRESENTATION A 42-year-old patient underwent 2014 surgery for a large hydatid cyst, resulting in a biliary fistula. Endoscopic sphincterotomy and biliary stent placement led to a successful outcome. Lost to follow-up, the patient reappeared in 2022 with basithoracic pain, fever, and a thoracic CT scan revealing transdiaphragmatic stent migration causing basal pneumonitis. Antibiotic therapy and endoscopic stent removal ensued with an uncomplicated recovery. CLINICAL DISCUSSION This report emphasizes a rare complication that is proximal migration of a biliary stent 10 years post-initial placement for biliary fistula management. Despite the absence of typical risk factors. We managed a successful endoscopic retrieval. This highlights the importance of vigilance and follow-up for potential complications associated with biliary stent. Unusual presentations, like pneumonitis, underscore the need for awareness and a cautious approach. CONCLUSION The primary complication following surgical intervention for hepatic hydatid cysts is the development of an external biliary fistula, necessitating the use of biliary stents for treatment. Given the rarity of complications observed in our case, the removal of stents post-treatment for biliary fistula becomes crucial, underscoring the significance of vigilant follow-up care.
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Affiliation(s)
- S Atri
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - R Elaifia
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia.
| | - A Sebai
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - M Hammami
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - A Haddad
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - J M Kacem
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
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Atri S, Elaifia R, Sebai A, Hammami M, Haddad A, Kacem JM. Bouveret Syndrome: A rare form of gallstone ileus a case report. Int J Surg Case Rep 2024; 116:109438. [PMID: 38428049 PMCID: PMC10944084 DOI: 10.1016/j.ijscr.2024.109438] [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: 01/31/2024] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 03/03/2024] Open
Abstract
INTRODUCTION AND IMPORTANCE Bouveret Syndrome, a rare form of gallstone ileus, involves the migration and impaction of a gallstone in the duodenum or stomach, causing gastric outlet obstruction. Early intervention and a comprehensive care plan are essential for favorable outcomes. CASE PRESENTATION This article presents a case of an 82-year-old female with a history of coronary artery disease and untreated gallstones. The patient experienced nausea, vomiting, and abdominal pain for two weeks. Diagnostic procedures revealed a cholecystoduodenal fistula with a 4 cm stone lodged at the duodenojejunal angle. For our patient the gallstone was moved to the jejunum, followed by enterotomy and a latero_lateral gastroenteroanastomosis. CLINICAL DISCUSSION The rarity of Bouveret Syndrome and its nonspecific symptoms make diagnosis challenging, necessitating differentiation from other gastrointestinal disorders. Esophagogastroduodenoscopy (EGD) and imaging, such as computed tomography (CT), play crucial roles in diagnosis. In this case, the EGD did not show gallstones up to the second part of the duodenum. Management involves a multidisciplinary approach, with supportive care for stabilization and the primary goal of removing the impacted stone. Treatment options include endoscopic, surgical, or lithotripsy techniques. Bouveret Syndrome poses challenges due to its rarity, leading to delayed diagnosis. Prognosis varies based on factors such as stone size, location, and overall patient condition. CONCLUSION Through this case we emphasizes the importance of awareness, timely diagnosis, and appropriate management, with EGD and CT scan playing key roles in diagnosis. Surgical intervention remains a viable treatment option when endoscopic approaches are unavailable. The article highlights the controversial nature of fistula repair in Bouveret Syndrome.
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Affiliation(s)
- S Atri
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - R Elaifia
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of medicine of Tunis, Tunis El Manar University, Tunis, Tunisia.
| | - A Sebai
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - M Hammami
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - A Haddad
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - J M Kacem
- Department of Surgery A La Rabta Hospital, Tunis, Tunisia; Faculty of medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
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Ksila M, Ghzaiel I, Sassi K, Zarrouk A, Leoni V, Poli G, Rezig L, Pires V, Meziane S, Atanasov AG, Hammami S, Hammami M, Masmoudi-Kouki O, Hamdi O, Jouanny P, Samadi M, Vejux A, Ghrairi T, Lizard G. Therapeutic Applications of Oxysterols and Derivatives in Age-Related Diseases, Infectious and Inflammatory Diseases, and Cancers. Adv Exp Med Biol 2024; 1440:379-400. [PMID: 38036890 DOI: 10.1007/978-3-031-43883-7_19] [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] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Oxysterols, resulting from the oxidation of cholesterol, are formed either by autoxidation, enzymatically, or by both processes. These molecules, which are provided in more or less important quantities depending on the type of diet, are also formed in the body and their presence is associated with a normal physiological activity. Their increase and decrease at the cellular level and in biological fluids can have significant consequences on health due or not to the interaction of some of these molecules with different types of receptors but also because oxysterols are involved in the regulation of RedOx balance, cytokinic and non-cytokinic inflammation, lipid metabolism, and induction of cell death. Currently, various pathologies such as age-related diseases, inflammatory and infectious diseases, and several cancers are associated with abnormal levels of oxysterols. Due to the important biological activities of oxysterols, their interaction with several receptors and their very likely implications in several diseases, this review focuses on these molecules and on oxysterol derivatives, which are often more efficient, in a therapeutic context. Currently, several oxysterol derivatives are developed and are attracting a lot of interest.
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Affiliation(s)
- Mohamed Ksila
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
- Laboratory of Neurophysiology, Cellular Physiopathology and Valorisation of Biomolecules (LR18ES03), Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis, Tunisia
| | - Imen Ghzaiel
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
- Laboratory of Rangeland Ecosystems and Valorization of Spontaneous Plants and Associated Microorganisms (LR16IRA03), Arid Regions Institute, University of Gabes, Medenine, Tunisia
| | - Khouloud Sassi
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
| | - Amira Zarrouk
- Laboratory of Rangeland Ecosystems and Valorization of Spontaneous Plants and Associated Microorganisms (LR16IRA03), Arid Regions Institute, University of Gabes, Medenine, Tunisia
- Faculty of Medicine, University of Sousse, Laboratory of Biochemistry, Sousse, Tunisia
| | - Valerio Leoni
- Department of Laboratory Medicine, University of Milano-Bicocca, Azienda Socio Sanitaria Territoriale Brianza ASST-Brianza, Desio Hospital, Desio, Italy
| | - Giuseppe Poli
- Department of Clinical and Biological Sciences, University of Turin, San Luigi Hospital, Turin, Italy
| | - Leila Rezig
- University of Carthage, National Institute of Applied Sciences and Technology, LR11ES26, LIP-MB 'Laboratory of Protein Engineering and Bioactive Molecules', Tunis, Tunisia
- University of Carthage, High Institute of Food Industries, El Khadra City, Tunis, Tunisia
| | - Vivien Pires
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
| | - Smail Meziane
- Institut Européen des Antioxydants (IEA), Neuves-Maisons, France
| | - Atanas G Atanasov
- Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, Magdalenka, Poland
| | - Sonia Hammami
- Laboratory of Rangeland Ecosystems and Valorization of Spontaneous Plants and Associated Microorganisms (LR16IRA03), Arid Regions Institute, University of Gabes, Medenine, Tunisia
- University Hospital Fattouma Bourguiba, Monastir, Tunisia
| | - Mohamed Hammami
- Laboratory of Rangeland Ecosystems and Valorization of Spontaneous Plants and Associated Microorganisms (LR16IRA03), Arid Regions Institute, University of Gabes, Medenine, Tunisia
| | - Olfa Masmoudi-Kouki
- Laboratory of Neurophysiology, Cellular Physiopathology and Valorisation of Biomolecules (LR18ES03), Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis, Tunisia
| | - Oumaima Hamdi
- University Hospital Fattouma Bourguiba, Monastir, Tunisia
- Pôle Personnes Agées, CHU de Dijon, Centre de Champmaillot, Dijon Cedex, France
| | - Pierre Jouanny
- Pôle Personnes Agées, CHU de Dijon, Centre de Champmaillot, Dijon Cedex, France
| | - Mohammad Samadi
- Laboratory of Chemistry and Physics Multi-Scale Approach to Complex Environments, Department of Chemistry, University Lorraine, Metz, France
| | - Anne Vejux
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
| | - Taoufik Ghrairi
- Laboratory of Neurophysiology, Cellular Physiopathology and Valorisation of Biomolecules (LR18ES03), Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis, Tunisia
| | - Gérard Lizard
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France.
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Ghzaiel I, Maaloul S, Ksila M, Namsi A, Yammine A, Debbabi M, Badreddine A, Meddeb W, Pires V, Nury T, Ménétrier F, Avoscan L, Zarrouk A, Baarine M, Masmoudi-Kouki O, Ghrairi T, Abdellaoui R, Nasser B, Hammami S, Hammami M, Samadi M, Vejux A, Lizard G. In Vitro Evaluation of the Effects of 7-Ketocholesterol and 7β-Hydroxycholesterol on the Peroxisomal Status: Prevention of Peroxisomal Damages and Concept of Pexotherapy. Adv Exp Med Biol 2024; 1440:437-452. [PMID: 38036892 DOI: 10.1007/978-3-031-43883-7_21] [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] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
7-Ketocholesterol and 7β-hydroxycholesterol are most often derived from the autoxidation of cholesterol. Their quantities are often increased in the body fluids and/or diseased organs of patients with age-related diseases such as cardiovascular diseases, Alzheimer's disease, age-related macular degeneration, and sarcopenia which are frequently associated with a rupture of RedOx homeostasis leading to a high oxidative stress contributing to cell and tissue damages. On murine cells from the central nervous system (158N oligodendrocytes, microglial BV-2 cells, and neuronal N2a cells) as well as on C2C12 murine myoblasts, these two oxysterols can induce a mode of cell death which is associated with qualitative, quantitative, and functional modifications of the peroxisome. These changes can be revealed by fluorescence microscopy (apotome, confocal microscopy), transmission electron microscopy, flow cytometry, quantitative reverse transcription polymerase chain reaction (RT-qPCR), and gas chromatography-coupled with mass spectrometry (GC-MS). Noteworthy, several natural molecules, including ω3 fatty acids, polyphenols, and α-tocopherol, as well as several Mediterranean oils [argan and olive oils, Milk-thistle (Sylibum marianum) and Pistacia lenticus seed oils], have cytoprotective properties and attenuate 7-ketocholesterol- and 7β-hydroxycholesterol-induced peroxisomal modifications. These observations led to the concept of pexotherapy.
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Affiliation(s)
- Imen Ghzaiel
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
- Faculty of Medicine, Laboratory 'Nutrition, Functional Food and Vascular Health' (LR12ES05), University of Monastir, Monastir, Tunisia
| | - Samah Maaloul
- Laboratory of Rangeland Ecosystems and Valorization of Spontaneous Plants and Associated Microorganisms (LR16IRA03), Arid Regions Institute, University of Gabes, Medenine, Tunisia
| | - Mohamed Ksila
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
- Laboratory of Neurophysiology, Cellular Physiopathology and Valorisation of Biomolecules (LR18ES03), Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis, Tunisia
| | - Amira Namsi
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
| | - Aline Yammine
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
| | - Meriam Debbabi
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
| | - Asma Badreddine
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
- Laboratory of Biochemistry, Neuroscience, Natural Resources and Environment, Faculty of Science and Technology, University Hassan I, Settat, Morocco
| | - Wiem Meddeb
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
| | - Vivien Pires
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
| | - Thomas Nury
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
| | - Franck Ménétrier
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Laure Avoscan
- Agroécologie, AgroSup Dijon, CNRS, INRAE, University Bourgogne Franche-Comté, Plateforme DimaCell, Dijon, France
| | - Amira Zarrouk
- Faculty of Medicine, Laboratory 'Nutrition, Functional Food and Vascular Health' (LR12ES05), University of Monastir, Monastir, Tunisia
- Faculty of Medicine, University of Sousse, Laboratory of Biochemistry, Sousse, Tunisia
| | - Mauhamad Baarine
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
| | - Olfa Masmoudi-Kouki
- Laboratory of Neurophysiology, Cellular Physiopathology and Valorisation of Biomolecules (LR18ES03), Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis, Tunisia
| | - Taoufik Ghrairi
- Laboratory of Neurophysiology, Cellular Physiopathology and Valorisation of Biomolecules (LR18ES03), Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis, Tunisia
| | - Raoudha Abdellaoui
- Laboratory of Rangeland Ecosystems and Valorization of Spontaneous Plants and Associated Microorganisms (LR16IRA03), Arid Regions Institute, University of Gabes, Medenine, Tunisia
| | - Boubker Nasser
- Laboratory of Biochemistry, Neuroscience, Natural Resources and Environment, Faculty of Science and Technology, University Hassan I, Settat, Morocco
| | - Sonia Hammami
- Faculty of Medicine, Laboratory 'Nutrition, Functional Food and Vascular Health' (LR12ES05), University of Monastir, Monastir, Tunisia
| | - Mohamed Hammami
- Faculty of Medicine, Laboratory 'Nutrition, Functional Food and Vascular Health' (LR12ES05), University of Monastir, Monastir, Tunisia
| | - Mohammad Samadi
- LCPMC-A2, ICPM, Department of Chemistry, University Lorraine, Metz Technopôle, Metz, France
| | - Anne Vejux
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France
| | - Gérard Lizard
- Bio-PeroxIL Laboratory, EA7270, University of Bourgogne & Inserm, Dijon, France.
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Mehri S, Chaaba R, Finsterer J, Khamlaoui W, Hammami S, Hammami M. Relevance of oxidative stress biomarkers, hemoglobin A1c, troponin-I, and angiotensin-converting enzyme metabolism to blood pressure in acute myocardial infarction: a case-control study. Redox Rep 2023; 28:2209360. [PMID: 37191198 DOI: 10.1080/13510002.2023.2209360] [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] [Indexed: 05/17/2023] Open
Abstract
The aim was to investigate this relationship by calculating 1) the correlation between peak troponin-C (peak-cTnI), levels of oxidative stress biomarkers, including lipid peroxidation products (malondialdehyde (MDA), conjugated dienes (CD)), and antioxidant enzyme activity (glutathione peroxidase (GPx)), and HbA1c and 2) the correlation between HbA1c and serum angiotensin-converting enzyme (ACE) activity, and its impact on the rate pressure product (RPP) in acute myocardial infarction (AMI). A case-control study was performed in 306 AMI patients having undergone coronary angiography and on 410 controls. GPx activity was reduced in association with increased MDA and CD in patients. Peak-cTnI was positively correlated with HbA1c, MDA, and CD levels. Serum ACE activity was negatively correlated with GPx. HbA1c was positively correlated with ACE activity and RPP. Linear regression analysis showed that peak-cTnI, ACE activity and HbA1c are significant predictors of AMI. Elevated HbA1c and peak-cTnI levels are associated with RPP elevation causing AMI. In conclusions, patients with elevated HbA1c, elevated ACE activity and cTnI are at increased risk of AMI with increasing RPP. Patients at risk of AMI can be identified at an early stage if the biomarkers HbA1c, ACE activity, and cTnI are measured and preventive measures are taken in a targeted manner.
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Affiliation(s)
- Sounira Mehri
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods, and Vascular Health", Faculty of Medicine, University of Monastir, Monastir, Tunisia
| | - Raja Chaaba
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods, and Vascular Health", Faculty of Medicine, University of Monastir, Monastir, Tunisia
| | | | - Wided Khamlaoui
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods, and Vascular Health", Faculty of Medicine, University of Monastir, Monastir, Tunisia
| | - Sonia Hammami
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods, and Vascular Health", Faculty of Medicine, University of Monastir, Monastir, Tunisia
- Department of Internal Medicine, CHU F. Bourguiba, Monastir, Tunisia
| | - Mohamed Hammami
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods, and Vascular Health", Faculty of Medicine, University of Monastir, Monastir, Tunisia
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Ayed A, Essid R, Mankai H, Echmar A, Fares N, Hammami M, Sewald N, Limam F, Tabbene O. Synergistic antifungal activity and potential mechanism of action of a glycolipid-like compound produced by Streptomyces blastmyceticus S108 against Candida clinical isolates. J Appl Microbiol 2023; 134:lxad246. [PMID: 37884451 DOI: 10.1093/jambio/lxad246] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 09/04/2023] [Accepted: 10/25/2023] [Indexed: 10/28/2023]
Abstract
AIM The present study aimed to investigate a novel antifungal compound produced by Streptomyces blastmyceticus S108 strain. Its effectiveness against clinical isolates of Candida species and its synergistic effect with conventional antifungal drugs were assessed, and its molecular mechanism of action was further studied against Candida albicans. METHODS AND RESULTS A newly isolated strain from Tunisian soil, S. blastmyceticus S108, showed significant antifungal activity against Candida species by well diffusion method. The butanolic extract of S108 strain supernatant exhibited the best anti-Candida activity with a minimal inhibitory concentration (MIC) value of 250 μg ml-1, determined by the microdilution method. The bio-guided purification steps of the butanolic extract were performed by chromatographic techniques. Among the fractions obtained, F13 demonstrated the highest level of activity, displaying a MIC of 31.25 μg ml-1. Gas chromatography-mass spectrometry and electrospray ionization mass spectrometry analyses of this fraction (F13) revealed the glycolipidic nature of the active molecule with a molecular weight of 685.6 m/z. This antifungal metabolite remained stable to physicochemical changes and did not show hemolytic activity even at 4MIC corresponding to 125 µg ml-1 toward human erythrocytes. Besides, the glycolipid compound was combined with 5-flucytosine and showed a high synergistic effect with a fractional inhibitory concentration index value 0.14 against C. albicans ATCC 10231. This combination resulted in a decrease of MIC values of 5-flucytosine and the glycolipid-like compound by 8- and 64-fold, respectively. The examination of gene expression in treated C. albicans cells by quantitative polymerase chain reaction (qPCR) revealed that the active compound tested alone or in combination with 5-flucytosine blocks the ergosterol biosynthesis pathway by downregulating the expression of ERG1, ERG3, ERG5, ERG11, and ERG25 genes. CONCLUSION AND IMPACT OF THE STUDY The new glycolipid-like compound, produced by Streptomyces S108 isolate, could be a promising drug for medical use against pathogenic Candida isolates.
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Affiliation(s)
- A Ayed
- Laboratory of Bioactive Substances, Center of Biotechnology of Borj Cedria, BP 901, Hammam-Lif 2050, Tunisia
| | - R Essid
- Laboratory of Bioactive Substances, Center of Biotechnology of Borj Cedria, BP 901, Hammam-Lif 2050, Tunisia
| | - H Mankai
- Laboratory of Bioactive Substances, Center of Biotechnology of Borj Cedria, BP 901, Hammam-Lif 2050, Tunisia
| | - A Echmar
- Laboratory of Bioactive Substances, Center of Biotechnology of Borj Cedria, BP 901, Hammam-Lif 2050, Tunisia
| | - N Fares
- Laboratory of Bioactive Substances, Center of Biotechnology of Borj Cedria, BP 901, Hammam-Lif 2050, Tunisia
| | - M Hammami
- Laboratory of Aromatic and Medicinal Plants, Center of Biotechnology of Borj Cedria, Hammam-Lif 2050, Tunisia
| | - N Sewald
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, 33615 Bielefeld, Germany
| | - F Limam
- Laboratory of Bioactive Substances, Center of Biotechnology of Borj Cedria, BP 901, Hammam-Lif 2050, Tunisia
| | - O Tabbene
- Laboratory of Bioactive Substances, Center of Biotechnology of Borj Cedria, BP 901, Hammam-Lif 2050, Tunisia
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8
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Ghzaiel I, Zarrouk A, Pires V, de Barros JPP, Hammami S, Ksila M, Hammami M, Ghrairi T, Jouanny P, Vejux A, Lizard G. 7β-Hydroxycholesterol and 7-ketocholesterol: New oxidative stress biomarkers of sarcopenia inducing cytotoxic effects on myoblasts and myotubes. J Steroid Biochem Mol Biol 2023; 232:106345. [PMID: 37286110 DOI: 10.1016/j.jsbmb.2023.106345] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 04/21/2023] [Accepted: 06/04/2023] [Indexed: 06/09/2023]
Abstract
Aging is a complex biological process which can be associated with skeletal muscle degradation leading to sarcopenia. The aim of this study consisted i) to determine the oxidative and inflammatory status of sarcopenic patients and ii) to clarify the impact of oxidative stress on myoblasts and myotubes. To this end, various biomarkers of inflammation (C-reactive protein (CRP), TNF-α, IL-6, IL-8, leukotriene B4 (LTB4)) and oxidative stress (malondialdehyde, conjugated dienes, carbonylated proteins and antioxidant enzymes: catalase, superoxide dismutase, glutathione peroxidase) as well as oxidized derivatives of cholesterol formed by cholesterol autoxidation (7-ketocholesterol, 7β-hydroxycholesterol), were analyzed. Apelin, a myokine which contributes to muscle strength, was also quantified. To this end, a case-control study was conducted to evaluate the RedOx and inflammatory status in 45 elderly subjects (23 non-sarcopenic; 22 sarcopenic) from 65 years old and higher. SARCopenia-Formular (SARC-F) and Timed Up and Go (TUG) tests were used to distinguish between sarcopenic and non-sarcopenic subjects. By using red blood cells, plasma and/or serum, we observed in sarcopenic patients an increased activity of major antioxidant enzymes (superoxide dismutase, glutathione peroxidase, catalase) associated with lipid peroxidation and protein carbonylation (increased level of malondialdehyde, conjugated dienes and carbonylated proteins). Higher levels of 7-ketocholesterol and 7β-hydroxycholesterol were also observed in the plasma of sarcopenic patients. Significant differences were only observed with 7β-hydroxycholesterol. In sarcopenic patients comparatively to non-sarcopenic subjects, significant increase of CRP, LTB4 and apelin were observed whereas similar levels of TNF-α, IL-6 and IL-8 were found. The increased plasma level of 7-ketocholesterol and 7β-hydroxycholesterol in sarcopenic patients led us to study the cytotoxic effect of these oxysterols on undifferentiated (myoblasts) and differentiated (myotubes) murine C2C12 cells. With the fluorescein diacetate and sulforhodamine 101 assays, an induction of cell death was observed both on undifferentiated and differentiated cells: the cytotoxic effects were less pronounced with 7-ketocholesterol. In addition, IL-6 secretion was never detected whatever the culture conditions, TNF-α secretion was significantly increased on undifferentiated and differentiated C2C12 cells treated with 7-ketocholesterol- and 7β-hydroxycholesterol, and IL-8 secretion was increased on differentiated cells. 7-ketocholesterol- and 7β-hydroxycholesterol-induced cell death was strongly attenuated by α-tocopherol and Pistacia lentiscus L. seed oil both on myoblasts and/or myotubes. TNF-α and/or IL-8 secretions were reduced by α-tocopherol and Pistacia lentiscus L. seed oil. Our data support the hypothesis that the enhancement of oxidative stress observed in sarcopenic patients could contribute, especially via 7β-hydroxycholesterol, to skeletal muscle atrophy and inflammation via cytotoxic effects on myoblasts and myotubes. These data bring new elements to understand the pathophysiology of sarcopenia and open new perspectives for the treatment of this frequent age-related disease.
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Affiliation(s)
- Imen Ghzaiel
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, Université de Bourgogne, 21000 Dijon, France; Lab-NAFS 'Nutrition-Functional Food & Vascular Health', Faculty of Medicine, University of Monastir, LR12ES05, Monastir 5000, Tunisia
| | - Amira Zarrouk
- Lab-NAFS 'Nutrition-Functional Food & Vascular Health', Faculty of Medicine, University of Monastir, LR12ES05, Monastir 5000, Tunisia; Faculty of Medicine, University of Sousse, Sousse 4000, Tunisia.
| | - Vivien Pires
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, Université de Bourgogne, 21000 Dijon, France
| | | | - Sonia Hammami
- Lab-NAFS 'Nutrition-Functional Food & Vascular Health', Faculty of Medicine, University of Monastir, LR12ES05, Monastir 5000, Tunisia
| | - Mohamed Ksila
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, Université de Bourgogne, 21000 Dijon, France; Laboratory of Neurophysiology, Cellular Physiopathology and Valorisation of BioMolecules, LR18ES03, Department of Biology, Faculty of Sciences, University Tunis-El Manar, Tunis 2092, Tunisia
| | - Mohamed Hammami
- Lab-NAFS 'Nutrition-Functional Food & Vascular Health', Faculty of Medicine, University of Monastir, LR12ES05, Monastir 5000, Tunisia
| | - Taoufik Ghrairi
- Université de Bourgogne, Lipidomic Platform, 21000 Dijon, France
| | - Pierre Jouanny
- Geriatric Internal Medicine Department (Champmaillot), University Hospital Center, Université de Bourgogne, 21000 Dijon, France
| | - Anne Vejux
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, Université de Bourgogne, 21000 Dijon, France
| | - Gérard Lizard
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, Université de Bourgogne, 21000 Dijon, France.
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9
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Zhor C, Wafaa L, Ghzaiel I, Kessas K, Zarrouk A, Ksila M, Ghrairi T, Latruffe N, Masmoudi-Kouki O, El Midaoui A, Vervandier-Fasseur D, Hammami M, Lizard G, Vejux A, Kharoubi O. Effects of polyphenols and their metabolites on age-related diseases. Biochem Pharmacol 2023:115674. [PMID: 37414102 DOI: 10.1016/j.bcp.2023.115674] [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: 05/09/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/08/2023]
Abstract
Aging contributes to the progressive loss of cellular biological functions and increases the risk of age-related diseases. Cardiovascular diseases, some neurological disorders and cancers are generally classified as age-related diseases that affect the lifespan of individuals. These diseases result from the accumulation of cellular damage and reduced activity of protective stress response pathways, which can lead to inflammation and oxidative stress, which play a key role in the aging process. There is now increasing interest in the therapeutic effects of edible plants for the prevention of various diseases, including those associated with aging. It has become clear that the beneficial effects of these foods are due, at least in part, to the high concentration of bioactive phenolic compounds with low side effects. Antioxidants are the most abundant, and their high consumption in the Mediterranean diet has been associated with slower ageing in humans. Extensive human dietary intervention studies strongly suggest that polyphenol supplementation protects against the development of degenerative diseases, especially in the elderly. In this review, we present data on the biological effects of plant polyphenols in the context of their relevance to human health, ageing and the prevention of age-related diseases.
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Affiliation(s)
- Chouari Zhor
- University Oran 1 ABB: laboratory of Experimental Biotoxicology, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences. Oran Algeria.
| | - Lounis Wafaa
- University Oran 1 ABB: laboratory of Experimental Biotoxicology, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences. Oran Algeria.
| | - Imen Ghzaiel
- University Bourgogne Franche-Comté, Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, 21000 Dijon, France; University of Monastir: Faculty of Medicine, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', 5000 Monastir, Tunisia; University Tunis-El Manar, Faculty of Sciences of Tunis, 2092 Tunis, Tunisia.
| | - Khadidja Kessas
- University Oran 1 ABB: laboratory of Experimental Biotoxicology, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences. Oran Algeria.
| | - Amira Zarrouk
- University of Monastir: Faculty of Medicine, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', 5000 Monastir, Tunisia; University of Sousse: Faculty of Medicine, Sousse, Tunisia.
| | - Mohamed Ksila
- University Bourgogne Franche-Comté, Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, 21000 Dijon, France; University Tunis-El Manar, Loboratory of Neurophysiology, Cellular Physiopathology and Valorisation of BioMolecules, LR18ES03, Department of Biology, Faculty of Sciences, 2092 Tunis, Tunisia.
| | - Taoufik Ghrairi
- University Tunis-El Manar, Loboratory of Neurophysiology, Cellular Physiopathology and Valorisation of BioMolecules, LR18ES03, Department of Biology, Faculty of Sciences, 2092 Tunis, Tunisia.
| | - Norbert Latruffe
- University Bourgogne Franche-Comté, Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, 21000 Dijon, France.
| | - Olfa Masmoudi-Kouki
- University Tunis-El Manar, Loboratory of Neurophysiology, Cellular Physiopathology and Valorisation of BioMolecules, LR18ES03, Department of Biology, Faculty of Sciences, 2092 Tunis, Tunisia.
| | - Adil El Midaoui
- Department of Pharmacology and Physiology, Faculty of Medicine, University of Montreal, Canada.
| | - Dominique Vervandier-Fasseur
- Institut de Chimie Moléculaire de l'Université de Bourgogne, ICMUB-UMR CNRS 6302, University Bourgogne Franche-Comté, 9, avenue A. Savary, 21078 Dijon Cedex, France.
| | - Mohamed Hammami
- Lab-NAFS 'Nutrition-Functional Food & Vascular Health', Faculty of Medicine, University of Monastir, LR12ES05, 5000 Monastir, Tunisia.
| | - Gérard Lizard
- University Bourgogne Franche-Comté, Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, 21000 Dijon, France.
| | - Anne Vejux
- University Bourgogne Franche-Comté, Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, 21000 Dijon, France.
| | - Omar Kharoubi
- University Oran 1 ABB: laboratory of Experimental Biotoxicology, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences. Oran Algeria.
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10
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Toumi I, Yatouji S, Borie N, Remy S, Renault JH, Chazee L, Hammami M, Martiny L, Devarenne-Charpentier E, El Btaouri H. Anti-tumoral Effect of Thymelaea hirsuta L. Extracts in Colorectal Cancer Cells. Anticancer Agents Med Chem 2023; 23:687-698. [PMID: 36028959 DOI: 10.2174/1871520622666220826095035] [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: 04/14/2022] [Revised: 06/22/2022] [Accepted: 07/01/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Conventional chemotherapeutic treatment of colorectal cancer has low efficiency because of its high toxicity. Several studies identified natural compounds as potential antitumor agents by inducing cancer cell cycle arrest or apoptosis and exhibiting a potential synergy in drug combination therapy. Natural compounds derived from plants represent an important source of pharmacologic agents toward several diseases. For example, the Tunisian Thymelaeaceae plants are used in folk medicine for the treatment of different pathologies such as diabetes and hypertension. OBJECTIVE The Thymelaea hirsuta L. extracts were evaluated for their anti-tumoral activities and their adjuvant potential that could be used in conventional colorectal cancer therapy. METHODS Fractionation of total methanolic extract from the plant leaves provided 4 fractions using vacuum liquid chromatography. The cytotoxic activities of these fractions were tested toward colorectal cancer cells. RESULTS Ethyl acetate fraction (E2 fraction) induced cell cycle arrest and apoptosis by activating caspase-3. E2 fraction inhibited cell invasion by reducing integrin α5 expression and FAK phosphorylation. Moreover, E2 fraction potentialized colorectal cancer cells to 5-FU treatment. CONCLUSION The selected plant Thymelaea hirsuta is the source of natural compounds that inhibited cell growth and invasion and induced cell cycle arrest in colorectal cancer cells. The most interesting result was their potential synergy in 5-FU combination treatment. Further analysis will identify the active compounds and confirm their role in chemotherapeutic treatment by sensitizing colorectal cancer cell to anti-cancer drugs.
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Affiliation(s)
- Iheb Toumi
- Laboratoire de Biochimie, LR12ES05, Faculté de Médecine, Université de Monastir, 5019 Monastir, Tunisie
| | - Sonia Yatouji
- Laboratoire de Biochimie, LR12ES05, Faculté de Médecine, Université de Monastir, 5019 Monastir, Tunisie
| | - Nicolas Borie
- UMR-CNRS 7312 Institut de Chimie Moléculaire de Reims (ICMR), UFR Sciences Exactes et Naturelles, Université de Reims Champagne Ardenne, Moulin de la Housse, BP 1039, 51687 Reims cedex, FRANCE
| | - Simon Remy
- UMR-CNRS 7312 Institut de Chimie Moléculaire de Reims (ICMR), UFR Sciences Exactes et Naturelles, Université de Reims Champagne Ardenne, Moulin de la Housse, BP 1039, 51687 Reims cedex, FRANCE
| | - Jean-Hugues Renault
- UMR-CNRS 7312 Institut de Chimie Moléculaire de Reims (ICMR), UFR Sciences Exactes et Naturelles, Université de Reims Champagne Ardenne, Moulin de la Housse, BP 1039, 51687 Reims cedex, FRANCE
| | - Lise Chazee
- UMR-CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR Sciences Exactes et Naturelles, Université de Reims Champagne Ardenne, Moulin de la Housse, BP 1039, 51687 Reims cedex, France
| | - Mohamed Hammami
- Laboratoire de Biochimie, LR12ES05, Faculté de Médecine, Université de Monastir, 5019 Monastir, Tunisie
| | - Laurent Martiny
- UMR-CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR Sciences Exactes et Naturelles, Université de Reims Champagne Ardenne, Moulin de la Housse, BP 1039, 51687 Reims cedex, France
| | - Emmanuelle Devarenne-Charpentier
- UMR-CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR Sciences Exactes et Naturelles, Université de Reims Champagne Ardenne, Moulin de la Housse, BP 1039, 51687 Reims cedex, France
| | - Hassan El Btaouri
- UMR-CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR Sciences Exactes et Naturelles, Université de Reims Champagne Ardenne, Moulin de la Housse, BP 1039, 51687 Reims cedex, France
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11
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Amri Z, Amor IB, Zarrouk A, Chaaba R, Gargouri J, Hammami M, Hammami S. Anti-glycation, antiplatelet and antioxidant effects of different pomegranate parts. BMC Complement Med Ther 2022; 22:339. [PMID: 36575459 PMCID: PMC9793499 DOI: 10.1186/s12906-022-03824-6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 12/16/2022] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Platelet aggregation and advanced glycation end products (AGEs) and oxidative stress are known as key factors for the development of cardiovascular diseases and diabetic complications. In this context, fruit and vegetable consumption, good sources of antioxidant compounds have been largely reported as an effective way of preventing human against these diseases. The current study focuses on the evaluation of antioxidant, antiplatelet and anti-glycation activities of pomegranate (Punica granatum L.) flowers (PF), leaves (PL), peel (PP) juice (PJ) and seeds oil (PSO). METHODS Antioxidant activities was measured against ABTS radical and lipid peroxidation. Antiglycation activity was determined using the formation of AGE fluorescence intensity in the BSA/ribose system. Antiplatelet activity was measured in platelet rich plasma (PRP) against adenosine diphosphate (ADP), Collagen and arachidonic acid (AA). RESULTS PF extract displayed the highest antioxidant activity against ABTS and lipid peroxidation with IC50 values of 0.7 mg/mL and 0.63 mg/mL respectively. For anti-glycation activity, PP, PF and PL inhibited moderately the pentosidine-like AGEs formation compared to positive controls with AGE-IC50 value of 0.4 mg/mL. PJ and PSO haven't any anti-AGE effect. All the extracts selectively inhibited platelet aggregation caused by one, two or three inducers in dose dependent manner. PF was the most potent inhibitor caused by all three inducers, with inhibitory effects ranging from 35.6 to 66.6%. PP and PJ exhibited antiplatelet effect against both ADP and collagen and PL and PSO only against AA. CONCLUSIONS These results suggest that some pomegranate extracts exert potential in vitro anti-glycative and antiplatelet activities.
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Affiliation(s)
- Zahra Amri
- grid.411838.70000 0004 0593 5040Biochemistry Laboratory, LR12ES05 “Nutrition- Functional Foods and vascular Health”, Faculty of Medicine, University of Monastir, 5019 Monastir, Tunisia
| | - Ikram Ben Amor
- Centre Régional de Transfusion Sanguine de Sfax, Route El-Ain Km 0.5, CP 3003 Sfax, Tunisia
| | - Amira Zarrouk
- grid.411838.70000 0004 0593 5040Biochemistry Laboratory, LR12ES05 “Nutrition- Functional Foods and vascular Health”, Faculty of Medicine, University of Monastir, 5019 Monastir, Tunisia
| | - Raja Chaaba
- grid.411838.70000 0004 0593 5040Biochemistry Laboratory, LR12ES05 “Nutrition- Functional Foods and vascular Health”, Faculty of Medicine, University of Monastir, 5019 Monastir, Tunisia
| | - Jalel Gargouri
- Centre Régional de Transfusion Sanguine de Sfax, Route El-Ain Km 0.5, CP 3003 Sfax, Tunisia
| | - Mohamed Hammami
- grid.411838.70000 0004 0593 5040Biochemistry Laboratory, LR12ES05 “Nutrition- Functional Foods and vascular Health”, Faculty of Medicine, University of Monastir, 5019 Monastir, Tunisia
| | - Sonia Hammami
- grid.411838.70000 0004 0593 5040Biochemistry Laboratory, LR12ES05 “Nutrition- Functional Foods and vascular Health”, Faculty of Medicine, University of Monastir, 5019 Monastir, Tunisia
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12
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Moalla I, Nabli A, Hammami M. Data warehouse building to support opinion analysis in social media. Soc Netw Anal Min 2022. [DOI: 10.1007/s13278-022-00960-2] [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: 10/14/2022]
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13
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Lizard G, Hammami M, Poli G. Pharmacological and Nutraceutical Activation of Rejuvenation, Geroprotection and Cytoprotection: Proofs of Concept. Cells 2022; 11:cells11233786. [PMID: 36497045 PMCID: PMC9737771 DOI: 10.3390/cells11233786] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
Aging is a process associated with life [...].
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Affiliation(s)
- Gérard Lizard
- Team Bio-PeroxIL ‘Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism’ (EA 7270), Université de Bourgogne, Inserm, 21000 Dijon, France
- Correspondence:
| | - Mohamed Hammami
- Lab-NAFS ‘Nutrition-Functional Food & Vascular Health’, Faculty of Medicine, LR12ES05, University Monastir, Monastir 5000, Tunisia
| | - Giuseppe Poli
- Department of Clinical and Biological Sciences, University of Turin, San Luigi Hospital, Orbassano, 10043 Turin, Italy
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14
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Charni Y, Hammami M, Gaamouri N, Aouadi R, Gaith A, Oranchuk DJ, Souhaiel Chelly M, Bragazzi N. Postural profile of female basketball players and differences among playing positions. Eur Rev Med Pharmacol Sci 2022; 26:6073-6083. [PMID: 36111907 DOI: 10.26355/eurrev_202209_29623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE Basketball players often display poor balance and increased injury rates when compared to other athletic categories. Therefore, the relationship between postural control and injury risks in basketball athletes requires investigation. The purpose of this study was to: (a) establish a postural profile of elite women basketball players, (b) compare postural control of the different playing positions to detect the vulnerability of postural balance, and (c) attempt to understand the reasons underlying these differences. PATIENTS AND METHODS 30 elite female basketball players (aged 21.4±2.3 years) were assigned to three groups according to their playing positions (n=10 guards; n=10 forwards; n=10 centers). A one-way analysis of variance was performed to determine differences between balance test variables under three conditions (static, dynamic antero-posterior and medio-lateral). When a significant main effect was observed, Tukey's post-hoc multiple comparisons tests were used to determine statistical significance. Associations between balance and morphological variables, muscle strength and power were assessed using Pearson's correlation coefficient. RESULTS Results reveal that basketball players had better postural control than previously studied handball players and non-athletes, but they are more dependent on vision than other categories. When comparing postural controls of playing position, centers show greater vulnerability [Y mean (OE)] than forwards: p<0.001; or guards: p<0.01), due to morphological factors (body mass r=-0.80, height r=-0.68, and lower limb length r=-0.63, and specific power r=-0.40). CONCLUSIONS Therefore, coaches and strength and conditioning specialists should give specific focus to improving lower limb strength and power in centers and taller basketball players to mitigate against injury risks related to postural control.
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Affiliation(s)
- Y Charni
- Research Unit (UR17JS01) «Sport Performance, Health & Society», Higher Institute of Sport and Physical Education of Ksar Saîd, University of "La Manouba", Tunis, Tunisia.
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15
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Ghzaiel I, Zarrouk A, Essadek S, Martine L, Hammouda S, Yammine A, Ksila M, Nury T, Meddeb W, Tahri Joutey M, Mihoubi W, Caccia C, Leoni V, Samadi M, Acar N, Andreoletti P, Hammami S, Ghrairi T, Vejux A, Hammami M, Lizard G. Protective effects of milk thistle (Sylibum marianum) seed oil and α-tocopherol against 7β-hydroxycholesterol-induced peroxisomal alterations in murine C2C12 myoblasts: Nutritional insights associated with the concept of pexotherapy. Steroids 2022; 183:109032. [PMID: 35381271 DOI: 10.1016/j.steroids.2022.109032] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/15/2022] [Accepted: 03/31/2022] [Indexed: 12/11/2022]
Abstract
Peroxisomes play an important role in regulating cell metabolism and RedOx homeostasis. Peroxisomal dysfunctions favor oxidative stress and cell death. The ability of 7β-hydroxycholesterol (7β-OHC; 50 μM, 24 h), known to be increased in patients with age-related diseases such as sarcopenia, to trigger oxidative stress, mitochondrial and peroxisomal dysfunction was studied in murine C2C12 myoblasts. The capacity of milk thistle seed oil (MTSO, 100 μg/mL) as well as α-tocopherol (400 µM; reference cytoprotective agent) to counteract the toxic effects of 7β-OHC, mainly at the peroxisomal level were evaluated. The impacts of 7β-OHC, in the presence or absence of MTSO or α-tocopherol, were studied with complementary methods: measurement of cell density and viability, quantification of reactive oxygen species (ROS) production and transmembrane mitochondrial potential (ΔΨm), evaluation of peroxisomal mass as well as topographic, morphologic and functional peroxisomal changes. Our results indicate that 7β-OHC induces a loss of cell viability and a decrease of cell adhesion associated with ROS overproduction, alterations of mitochondrial ultrastructure, a drop of ΔΨm, and several peroxisomal modifications. In the presence of 7β-OHC, comparatively to untreated cells, important quantitative and qualitative peroxisomal modifications were also identified: a) a reduced number of peroxisomes with abnormal sizes and shapes, mainly localized in cytoplasmic vacuoles, were observed; b) the peroxisomal mass was decreased as indicated by lower protein and mRNA levels of the peroxisomal ABCD3 transporter; c) lower mRNA level of Pex5 involved in peroxisomal biogenesis as well as higher mRNA levels of Pex13 and Pex14, involved in peroxisomal biogenesis and/or pexophagy, was found; d) lower levels of ACOX1 and MFP2 enzymes, implicated in peroxisomal β-oxidation, were detected; e) higher levels of very-long-chain fatty acids, which are substrates of peroxisomal β-oxidation, were found. These different cytotoxic effects were strongly attenuated by MTSO, in the same range of order as with α-tocopherol. These findings underline the interest of MTSO and α-tocopherol in the prevention of peroxisomal damages (pexotherapy).
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Affiliation(s)
- Imen Ghzaiel
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism'EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France; Lab-NAFS 'Nutrition-Functional Food & Vascular Health', Faculty of Medicine, University of Monastir, LR12ES05, 5000 Monastir, Tunisia; Faculty of Sciences of Tunis, University Tunis-El Manar, 2092 Tunis, Tunisia
| | - Amira Zarrouk
- Lab-NAFS 'Nutrition-Functional Food & Vascular Health', Faculty of Medicine, University of Monastir, LR12ES05, 5000 Monastir, Tunisia; Faculty of Medicine, University of Sousse, 4000 Sousse, Tunisia.
| | - Soukaina Essadek
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism'EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France; Laboratory of Biochemistry, Neurosciences, Natural Resources and Environment, Faculty of Sciences & Techniques, University Hassan I, BP 577, 26000 Settat, Morocco
| | - Lucy Martine
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, 21065 Dijon, France
| | - Souha Hammouda
- Lab-NAFS 'Nutrition-Functional Food & Vascular Health', Faculty of Medicine, University of Monastir, LR12ES05, 5000 Monastir, Tunisia
| | - Aline Yammine
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism'EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France; Bioactive Molecules Research Laboratory, Doctoral School of Sciences and Technologies, Faculty of Sciences, Lebanese University, Fanar, Jdeidet P.O. Box 90656, Lebanon
| | - Mohamed Ksila
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism'EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France; Faculty of Sciences of Tunis, University Tunis-El Manar, 2092 Tunis, Tunisia
| | - Thomas Nury
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism'EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France
| | - Wiem Meddeb
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism'EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France
| | - Mounia Tahri Joutey
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism'EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France; Laboratory of Biochemistry, Neurosciences, Natural Resources and Environment, Faculty of Sciences & Techniques, University Hassan I, BP 577, 26000 Settat, Morocco
| | - Wafa Mihoubi
- Laboratoire de Biotechnologie Moléculaire des Eucaryotes, Centre de Biotechnologie de Sfax, B.P 1177, Université de Sfax, 3018 Sfax, Tunisia
| | - Claudio Caccia
- Laboratory of Clinical Chemistry, Hospitals of Desio, ASST-Brianza and Department of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Valerio Leoni
- Laboratory of Clinical Chemistry, Hospitals of Desio, ASST-Brianza and Department of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Mohammad Samadi
- LCPMC-A2, ICPM, Department of Chemistry, University Lorraine, Metz Technopôle, 57070 Metz, France
| | - Niyazi Acar
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, 21065 Dijon, France
| | - Pierre Andreoletti
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism'EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France
| | - Sonia Hammami
- Lab-NAFS 'Nutrition-Functional Food & Vascular Health', Faculty of Medicine, University of Monastir, LR12ES05, 5000 Monastir, Tunisia
| | - Taoufik Ghrairi
- Faculty of Sciences of Tunis, University Tunis-El Manar, 2092 Tunis, Tunisia
| | - Anne Vejux
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism'EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France
| | - Mohamed Hammami
- Lab-NAFS 'Nutrition-Functional Food & Vascular Health', Faculty of Medicine, University of Monastir, LR12ES05, 5000 Monastir, Tunisia
| | - Gérard Lizard
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism'EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France.
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Ghzaiel I, Zarrouk A, Ben Hammouda S, Hammami M, Lizard G, Hammami S. AB1481 RedOx HOMEOSTASIS AND ANTIOXIDANT RESPONSE DEFENSE IN SKELETAL MUSCLE PERFORMANCE IN THE ELDERLY. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3882] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundAging is accompanied by a progressive decline in physical activity due to a loss of skeletal muscle mass and strength considered as a geriatric characteristic defined as sarcopenia. This latter may be associated with joint damage, all of which may predispose older people to the risk of falls. Few evidences suggest that oxidative stress plays a key role in the pathophysiology of sarcopenia.ObjectivesThe aim of this study was to clarify the relationship between sarcopenia and oxidative stress. To this end, measurements of antioxidant enzyme activities as well as levels of lipid oxidation products were performed on plasma and/or red blood cells.MethodsAll the participants (age ≥ 65) were classified into two groups according to the SARC-F score: non-sarcopenic patients (SARC-F <4; n=50) and sarcopenic (SARC-F ≥4; n=50). Redox biomarkers: antioxidant enzymes (erythrocyte superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) activities) as well as, lipid peroxidation products (plasma malondialdehyde (MDA), and conjugated dienes (CD) levels), were measured using spectrophotometric methods.ResultsSOD levels were significantly higher in the group of sarcopenic patients than in non- sarcopenic subjects (3.20 ± 1.00 U/mg Hb vs. 2.41 ± 0.88 U/mg Hb, respectively, p= 0.007). Similarly, catalase levels were significantly higher in sarcopenic patients compared with non sarcopenicsubjects (0.13 ± 0.04 U/mg Hb vs. 0.11 ± 0.03 U/mg Hb, respectively, p= 0.008). However, no significant differences in GPx levels were detected (p= 0.254). An accumulation of lipid oxidation biomarkers MDA (17.14 ± 3.13 nmol/mg protein vs. 10.39 ± 2.60 nmol/mg protein) and CD (0.24 ± 0.09 nmol/mg protein vs. 0.17 ± 0.06 nmol/mg protein) was observed in the plasma of sarcopenic patients compared with non- sarcopenic subjects(p< 0. 001 and p= 0.003, respectively).ConclusionSarcopenia is associated with oxidative stress as shown by increased levels of antioxidant enzyme activities (SOD, GPx) and lipid peroxidation products (MDA, CD).References[1]Liguori I, et al Clin Interv Aging. 2018;13:757-772[2]Ghzaiel I et al, Antioxidants2021, 10, 1772. https://doi.org/10.3390/antiox10111772Disclosure of InterestsNone declared
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Mnari Bhouri A, Ghnimi H, Amri Z, Koubaa N, Hammami M. Effect of tunisian pomegranate peel extract on the oxidative stability of corn oil under heating conditions. grasasaceites 2022. [DOI: 10.3989/gya.1010202] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The effect of pomegranate peel extract (PPE) on the oxidative stability of corn oil during heating was studied. Oxidation was followed by determining peroxide value (PV), p-anisidine value (p-AV), free fatty acid value (FFA), conjugated dienes (CD), conjugated trienes hydroperoxides (CT) and the calculated total oxidation value (TOTOX). Polyphenol (TPC) and ortho-diphenol (TOPC) contents as well as the antioxidant activity of each oil sample were evaluated before and after heating. PPE showed a significant inhibitory effect on lipid oxidation. Heating samples for 8 hours supplemented by PPE to a level of 1000 ppm resulted in the highest significant decreases in investigated indices compared to the control and BHT values. It was concluded that the antioxidant activity of PPE delayed oxidation and can be used in the food industry to prevent and reduce lipid deterioration in oil.
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Baati T, Ben Brahim M, Salek A, Selmi M, Njim L, Umek P, Aouane A, Hammami M, Hosni K. Flumequine-loaded titanate nanotubes as antibacterial agents for aquaculture farms. RSC Adv 2022; 12:5953-5963. [PMID: 35424545 PMCID: PMC8981844 DOI: 10.1039/d1ra08533f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 02/06/2022] [Indexed: 11/21/2022] Open
Abstract
Flumequine (FLUM), a quinolone-derived antibiotic is one of the most prescribed drugs in aquaculture farms. However, its intensive use becomes worrisome because of its environmental risks and the emergence of FLUM-resistant bacteria. To overcome these problems we propose in this study the encapsulation and the delivery of FLUM by titanate nanotubes (TiNTs). Optimal FLUM loading was reached by suspending the dehydrated powder nanomaterials (FLUM : TiNTs ratio = 1 : 5) in ethanol. The drug entrapment efficiency was calculated to be 80% approximately with a sustained release in PBS at 37 °C up to 5 days. Then FLUM@TiNTs was evaluated for both its in vitro drug release and antimicrobial activity against Escherichia coli (E. coli). Spectacularly high antibacterial activity compared to those of free FLUM antibiotic was obtained confirming the efficiency of TiNTs to protect FLUM from rapid degradation and transformation within bacteria improving thereby its antibacterial effect. Indeed FLUM@TiNTs was efficient to decrease gradually the bacterial viability to reach ≈5% after 5 days versus ≈75% with free FLUM. Finally, the ex vivo permeation experiments on sea bass (Dicentrachus labrax) intestine shows that TiNTs act to increase the intestinal permeation of FLUM during the experiment. Indeed the encapsulated FLUM flux increased 12 fold (1.46 μg cm2 h−1) compared to the free antibiotic (0.18 μg cm2 h−1). Thanks to its physical properties (diameter 10 nm, tubular shape…) and its high stability in the simulated intestinal medium, TiNTs are easy internalized by enterocytes, thus involving an endocytosis mechanism, and then improve intestinal permeation of FLUM. Taken together, FLUM@TiNTs hold potential as an effective approach for enhancing the antimicrobial activity of FLUM and pave the way not only for future pharmacokinetic studies in the treatment and targeting of fish infections but also for instating of novel strategies that overcome the challenges associated with the abusive use of antibiotics in fish farming. Flumequine (FLUM), a quinolone-derived antibiotic is one of the most prescribed drugs in aquaculture farms.![]()
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Affiliation(s)
- Tarek Baati
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique, Biotechpôle Sidi Thabet 2020 Tunisia +216 71 537 666
| | - Mounir Ben Brahim
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique, Biotechpôle Sidi Thabet 2020 Tunisia +216 71 537 666
| | - Abir Salek
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique, Biotechpôle Sidi Thabet 2020 Tunisia +216 71 537 666
| | - Mouna Selmi
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique, Biotechpôle Sidi Thabet 2020 Tunisia +216 71 537 666
| | - Leila Njim
- Service d'Anatomie Pathologique, CHU de Monastir, Université de Monastir Tunisia
| | - Polona Umek
- Jožef Stefan Institute Jamova cesta 39 SI-1000 Ljubljana Slovenia
| | - Aicha Aouane
- Centre de Microscopie Electronique, IBDML campus Luminy Marseille 13000 France
| | - Mohamed Hammami
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique, Biotechpôle Sidi Thabet 2020 Tunisia +216 71 537 666
| | - Karim Hosni
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique, Biotechpôle Sidi Thabet 2020 Tunisia +216 71 537 666
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El Midaoui A, Ghzaiel I, Vervandier-Fasseur D, Ksila M, Zarrouk A, Nury T, Khallouki F, El Hessni A, Ibrahimi SO, Latruffe N, Couture R, Kharoubi O, Brahmi F, Hammami S, Masmoudi-Kouki O, Hammami M, Ghrairi T, Vejux A, Lizard G. Saffron (Crocus sativus L.): A Source of Nutrients for Health and for the Treatment of Neuropsychiatric and Age-Related Diseases. Nutrients 2022; 14:nu14030597. [PMID: 35276955 PMCID: PMC8839854 DOI: 10.3390/nu14030597] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 01/25/2022] [Accepted: 01/27/2022] [Indexed: 12/13/2022] Open
Abstract
Saffron (Crocus sativus L.) is a medicinal plant, originally cultivated in the East and Middle East, and later in some Mediterranean countries. Saffron is obtained from the stigmas of the plant. Currently, the use of saffron is undergoing a revival. The medicinal virtues of saffron, its culinary use and its high added value have led to the clarification of its phytochemical profile and its biological and therapeutic characteristics. Saffron is rich in carotenoids and terpenes. The major products of saffron are crocins and crocetin (carotenoids) deriving from zeaxanthin, pirocrocin and safranal, which give it its taste and aroma, respectively. Saffron and its major compounds have powerful antioxidant and anti-inflammatory properties in vitro and in vivo. Anti-tumor properties have also been described. The goal of this review is to present the beneficial effects of saffron and its main constituent molecules on neuropsychiatric diseases (depression, anxiety and schizophrenia) as well as on the most frequent age-related diseases (cardiovascular, ocular and neurodegenerative diseases, as well as sarcopenia). Overall, the phytochemical profile of saffron confers many beneficial virtues on human health and, in particular, on the prevention of age-related diseases, which is a major asset reinforcing the interest for this medicinal plant.
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Affiliation(s)
- Adil El Midaoui
- Department of Pharmacology and Physiology, Faculty of Medicine, University of Montreal, Montreal, QC H3C 3J7, Canada;
- Department of Biology, Faculty of Sciences and Techniques Errachidia, Moulay Ismail University of Meknes, Errachidia 52000, Morocco;
- Laboratory of Genetics, Neuroendocrinology, and Biotechnology, Department of Biology, Faculty of Sciences, Ibn Tofail University, Kenitra 14020, Morocco; (A.E.H.); (S.O.I.)
- Correspondence: (A.E.M.); (G.L.); Tel.: +1-514-343-6111 (ext. 3320) (A.E.M.); +33-3-80-39-62-56 (G.L.)
| | - Imen Ghzaiel
- Team ‘Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism’, University of Bourgogne Franche-Comte, 21000 Dijon, France; (I.G.); (M.K.); (T.N.); (N.L.); (A.V.)
- Lab-NAFS ‘Nutritio—Functional Food & Vascular Health’, Faculty of Medicine, LR12ES05, University Monastir, Monastir 5000, Tunisia; (A.Z.); (S.H.); (M.H.)
| | - Dominique Vervandier-Fasseur
- Team OCS, Institute of Molecular Chemistry (ICMUB UMR CNRS 6302), University of Bourgogne Franche-Comte, 21000 Dijon, France;
| | - Mohamed Ksila
- Team ‘Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism’, University of Bourgogne Franche-Comte, 21000 Dijon, France; (I.G.); (M.K.); (T.N.); (N.L.); (A.V.)
- Laboratory Neurophysiology, Cellular Physiopathology and Valorisation of Biomolecules, (LR18ES03), Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis 2092, Tunisia; (O.M.-K.); (T.G.)
| | - Amira Zarrouk
- Lab-NAFS ‘Nutritio—Functional Food & Vascular Health’, Faculty of Medicine, LR12ES05, University Monastir, Monastir 5000, Tunisia; (A.Z.); (S.H.); (M.H.)
- Laboratory of Biochemistry, Faculty of Medicine, University of Sousse, Sousse 4000, Tunisia
| | - Thomas Nury
- Team ‘Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism’, University of Bourgogne Franche-Comte, 21000 Dijon, France; (I.G.); (M.K.); (T.N.); (N.L.); (A.V.)
| | - Farid Khallouki
- Department of Biology, Faculty of Sciences and Techniques Errachidia, Moulay Ismail University of Meknes, Errachidia 52000, Morocco;
| | - Aboubaker El Hessni
- Laboratory of Genetics, Neuroendocrinology, and Biotechnology, Department of Biology, Faculty of Sciences, Ibn Tofail University, Kenitra 14020, Morocco; (A.E.H.); (S.O.I.)
| | - Salama Ouazzani Ibrahimi
- Laboratory of Genetics, Neuroendocrinology, and Biotechnology, Department of Biology, Faculty of Sciences, Ibn Tofail University, Kenitra 14020, Morocco; (A.E.H.); (S.O.I.)
| | - Norbert Latruffe
- Team ‘Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism’, University of Bourgogne Franche-Comte, 21000 Dijon, France; (I.G.); (M.K.); (T.N.); (N.L.); (A.V.)
| | - Réjean Couture
- Department of Pharmacology and Physiology, Faculty of Medicine, University of Montreal, Montreal, QC H3C 3J7, Canada;
| | - Omar Kharoubi
- Laboratory of Experimental Biotoxicology, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences, University Oran1 ABB, Oran 31000, Algeria;
| | - Fatiha Brahmi
- Laboratory Biomathématique, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria;
| | - Sonia Hammami
- Lab-NAFS ‘Nutritio—Functional Food & Vascular Health’, Faculty of Medicine, LR12ES05, University Monastir, Monastir 5000, Tunisia; (A.Z.); (S.H.); (M.H.)
| | - Olfa Masmoudi-Kouki
- Laboratory Neurophysiology, Cellular Physiopathology and Valorisation of Biomolecules, (LR18ES03), Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis 2092, Tunisia; (O.M.-K.); (T.G.)
| | - Mohamed Hammami
- Lab-NAFS ‘Nutritio—Functional Food & Vascular Health’, Faculty of Medicine, LR12ES05, University Monastir, Monastir 5000, Tunisia; (A.Z.); (S.H.); (M.H.)
| | - Taoufik Ghrairi
- Laboratory Neurophysiology, Cellular Physiopathology and Valorisation of Biomolecules, (LR18ES03), Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis 2092, Tunisia; (O.M.-K.); (T.G.)
| | - Anne Vejux
- Team ‘Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism’, University of Bourgogne Franche-Comte, 21000 Dijon, France; (I.G.); (M.K.); (T.N.); (N.L.); (A.V.)
| | - Gérard Lizard
- Team ‘Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism’, University of Bourgogne Franche-Comte, 21000 Dijon, France; (I.G.); (M.K.); (T.N.); (N.L.); (A.V.)
- Correspondence: (A.E.M.); (G.L.); Tel.: +1-514-343-6111 (ext. 3320) (A.E.M.); +33-3-80-39-62-56 (G.L.)
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Saafi EB, Arem AE, Chahdoura H, Flamini G, Lachheb B, Ferchichi A, Hammami M, Achour L. Nutritional properties, aromatic compounds and in vitro antioxidant activity of ten date palm fruit (Phoenix dactylifera L.) varieties grown in Tunisia. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902020000318871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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Hammami M, Gaamouri N, Ramirez-Campillo R, Shephard RJ, Bragazzi NL, Chelly MS, Knechtle B, Gaied S. Effects of high-intensity interval training and plyometric exercise on the physical fitness of junior male handball players. Eur Rev Med Pharmacol Sci 2021; 25:7380-7389. [PMID: 34919239 DOI: 10.26355/eurrev_202112_27434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study analyzed the effects of high intensity interval training (HIIT) combined with plyometric exercise on the physical fitness of junior male handball players. PATIENTS AND METHODS Subjects (age ~17 years) were randomly divided between experimental (n=17) and control (n=15) groups. During the 8-week intervention, the experimental group replaced a part of their regular regimen by HIIT, combined with plyometric exercise. Assessments in both groups before and after the intervention included: squat jump (SJ), countermovement jump (CMJ), sprint performance (5 m, 10 m, 20 m and 30 m), change of direction tests (Illinois modified test [Illinois-MT] and T-half test), 20-m shuttle run, and repeated sprint T-test. RESULTS The two-way analyses of variance revealed significant group-time interactions (all p<0.05), favoring the intervention group in 5 m, 10 m, 20 m and 30 m sprint (d=0.33, 8.3%; d=0.52, 7.6%; d=0.57, 6.8%; and d=0.58, 8.8%, respectively), T-half (d=0.25, 5.1%), Illinois-MT (d=0.47, 4.2%), SJ and CMJ (d=0.34-0.39, 34-4-34.9%), repeated sprint T-test best time, mean time and total time (d=0.83, 6.9%; d=0.62, 7.4%; and d=0.61, 7.2%, respectively), 20 meter shuttle run test aerobic maximum speed and predicted maximal oxygen intake (d=0.36, 7.5%; d=0.19, 9.4%, respectively). CONCLUSIONS HIIT combined with plyometrics can aid in the development of physical fitness abilities, which are extremely important to junior male handball players.
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Affiliation(s)
- M Hammami
- Research Unit (UR17JS01) «Sport Performance, Health & Society», Higher Institute of Sport and Physical Education of Ksar Saîd, University of "La Manouba", Tunis, Tunisia.
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Jlalia I, Chabbah T, Chatti S, Schiets F, Casabianca H, Marestin C, Mercier R, Weidner SM, Kricheldorf HR, Errachid A, Vulliet E, Hammami M, Jaffrezic‐Renault N. Alternating bio‐based pyridinic copolymers modified with hydrophilic and hydrophobic spacers as sorbents of aromatic pollutants. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5578] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ibtissem Jlalia
- National Institute of Research and Physicochemical Analysis (INRAP) Biotechnopole of Sidi Thabet Ariana Tunisia
| | - Taha Chabbah
- National Institute of Research and Physicochemical Analysis (INRAP) Biotechnopole of Sidi Thabet Ariana Tunisia
- Faculty of Sciences University of Tunis El Manar Tunis Tunisia
| | - Saber Chatti
- National Institute of Research and Physicochemical Analysis (INRAP) Biotechnopole of Sidi Thabet Ariana Tunisia
| | - Frédéric Schiets
- Institute of Analytical Sciences University of Lyon Villeurbanne France
| | - Hervé Casabianca
- Institute of Analytical Sciences University of Lyon Villeurbanne France
| | | | - Regis Mercier
- Institute of Polymer Materials University of Lyon Villeurbanne France
| | | | | | | | | | - Mohamed Hammami
- National Institute of Research and Physicochemical Analysis (INRAP) Biotechnopole of Sidi Thabet Ariana Tunisia
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Ghzaiel I, Zarrouk A, Nury T, Libergoli M, Florio F, Hammouda S, Ménétrier F, Avoscan L, Yammine A, Samadi M, Latruffe N, Biressi S, Levy D, Bydlowski SP, Hammami S, Vejux A, Hammami M, Lizard G. Antioxidant Properties and Cytoprotective Effect of Pistacia lentiscus L. Seed Oil against 7β-Hydroxycholesterol-Induced Toxicity in C2C12 Myoblasts: Reduction in Oxidative Stress, Mitochondrial and Peroxisomal Dysfunctions and Attenuation of Cell Death. Antioxidants (Basel) 2021; 10:antiox10111772. [PMID: 34829643 PMCID: PMC8615043 DOI: 10.3390/antiox10111772] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/28/2021] [Accepted: 11/03/2021] [Indexed: 01/18/2023] Open
Abstract
Aging is characterized by a progressive increase in oxidative stress, which favors lipid peroxidation and the formation of cholesterol oxide derivatives, including 7β-hydroxycholesterol (7β-OHC). This oxysterol, which is known to trigger oxidative stress, inflammation, and cell death, could contribute to the aging process and age-related diseases, such as sarcopenia. Identifying molecules or mixtures of molecules preventing the toxicity of 7β-OHC is therefore an important issue. This study consists of determining the chemical composition of Tunisian Pistacia lentiscus L. seed oil (PLSO) used in the Tunisian diet and evaluating its ability to counteract the cytotoxic effects induced by 7β-OHC in murine C2C12 myoblasts. The effects of 7β-OHC (50 µM; 24 h), associated or not with PLSO, were studied on cell viability, oxidative stress, and on mitochondrial and peroxisomal damages induction. α-Tocopherol (400 µM) was used as the positive control for cytoprotection. Our data show that PLSO is rich in bioactive compounds; it contains polyunsaturated fatty acids, and several nutrients with antioxidant properties: phytosterols, α-tocopherol, carotenoids, flavonoids, and phenolic compounds. When associated with PLSO (100 µg/mL), the 7β-OHC-induced cytotoxic effects were strongly attenuated. The cytoprotection was in the range of those observed with α-tocopherol. This cytoprotective effect was characterized by prevention of cell death and organelle dysfunction (restoration of cell adhesion, cell viability, and plasma membrane integrity; prevention of mitochondrial and peroxisomal damage) and attenuation of oxidative stress (reduction in reactive oxygen species overproduction in whole cells and at the mitochondrial level; decrease in lipid and protein oxidation products formation; and normalization of antioxidant enzyme activities: glutathione peroxidase (GPx) and superoxide dismutase (SOD)). These results provide evidence that PLSO has similar antioxidant properties than α-tocopherol used at high concentration and contains a mixture of molecules capable to attenuate 7β-OHC-induced cytotoxic effects in C2C12 myoblasts. These data reinforce the interest in edible oils associated with the Mediterranean diet, such as PLSO, in the prevention of age-related diseases, such as sarcopenia.
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Affiliation(s)
- Imen Ghzaiel
- Team ‘Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism’ EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France; (I.G.); (T.N.); (A.Y.); (N.L.); (A.V.)
- Lab-NAFS ‘Nutrition—Functional Food & Vascular Health’, Faculty of Medicine, University of Monastir, LR12ES05, Monastir 5000, Tunisia; (S.H.); (S.H.); (M.H.)
- Faculty of Sciences of Tunis, University Tunis-El Manar, Tunis 2092, Tunisia
| | - Amira Zarrouk
- Lab-NAFS ‘Nutrition—Functional Food & Vascular Health’, Faculty of Medicine, University of Monastir, LR12ES05, Monastir 5000, Tunisia; (S.H.); (S.H.); (M.H.)
- Faculty of Medicine, University of Sousse, Sousse 4000, Tunisia
- Correspondence: (A.Z.); (G.L.); Tel.: +216-94-837-999 or +1-212-241 9304 (A.Z.); +33-380-396-256 (G.L.)
| | - Thomas Nury
- Team ‘Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism’ EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France; (I.G.); (T.N.); (A.Y.); (N.L.); (A.V.)
| | - Michela Libergoli
- Department of Cellular, Computational and Integrative Biology (CIBio) and Dulbecco Telethon Institute, University of Trento, 38123 Trento, Italy; (M.L.); (F.F.); (S.B.)
| | - Francesca Florio
- Department of Cellular, Computational and Integrative Biology (CIBio) and Dulbecco Telethon Institute, University of Trento, 38123 Trento, Italy; (M.L.); (F.F.); (S.B.)
| | - Souha Hammouda
- Lab-NAFS ‘Nutrition—Functional Food & Vascular Health’, Faculty of Medicine, University of Monastir, LR12ES05, Monastir 5000, Tunisia; (S.H.); (S.H.); (M.H.)
| | - Franck Ménétrier
- Centre des Sciences du Goût et de l’Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, 21065 Dijon, France;
| | - Laure Avoscan
- Agroécologie, AgroSup Dijon, CNRS, INRAE, University Bourgogne Franche-Comté, Plateforme DimaCell, 21000 Dijon, France;
| | - Aline Yammine
- Team ‘Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism’ EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France; (I.G.); (T.N.); (A.Y.); (N.L.); (A.V.)
| | - Mohammad Samadi
- LCPMC-A2, ICPM, Department of Chemistry, University Lorraine, Metz Technopôle, 57070 Metz, France;
| | - Norbert Latruffe
- Team ‘Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism’ EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France; (I.G.); (T.N.); (A.Y.); (N.L.); (A.V.)
| | - Stefano Biressi
- Department of Cellular, Computational and Integrative Biology (CIBio) and Dulbecco Telethon Institute, University of Trento, 38123 Trento, Italy; (M.L.); (F.F.); (S.B.)
| | - Débora Levy
- Lipids, Oxidation and Cell Biology Team, Laboratory of Immunology (LIM19), Heart Institute (InCor), Faculdade de Medicina, Universidade de São Paulo, São Paulo 05403-900, Brazil; (D.L.); (S.P.B.)
| | - Sérgio Paulo Bydlowski
- Lipids, Oxidation and Cell Biology Team, Laboratory of Immunology (LIM19), Heart Institute (InCor), Faculdade de Medicina, Universidade de São Paulo, São Paulo 05403-900, Brazil; (D.L.); (S.P.B.)
- National Institute of Science and Technology in Regenerative Medicine (INCT-Regenera), CNPq, Rio de Janeiro 21941-902, Brazil
| | - Sonia Hammami
- Lab-NAFS ‘Nutrition—Functional Food & Vascular Health’, Faculty of Medicine, University of Monastir, LR12ES05, Monastir 5000, Tunisia; (S.H.); (S.H.); (M.H.)
| | - Anne Vejux
- Team ‘Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism’ EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France; (I.G.); (T.N.); (A.Y.); (N.L.); (A.V.)
| | - Mohamed Hammami
- Lab-NAFS ‘Nutrition—Functional Food & Vascular Health’, Faculty of Medicine, University of Monastir, LR12ES05, Monastir 5000, Tunisia; (S.H.); (S.H.); (M.H.)
| | - Gérard Lizard
- Team ‘Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism’ EA7270/Inserm, University Bourgogne Franche-Comté, 21000 Dijon, France; (I.G.); (T.N.); (A.Y.); (N.L.); (A.V.)
- Correspondence: (A.Z.); (G.L.); Tel.: +216-94-837-999 or +1-212-241 9304 (A.Z.); +33-380-396-256 (G.L.)
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Ghzaiel I, Sassi K, Zarrouk A, Nury T, Ksila M, Leoni V, Bouhaouala-Zahar B, Hammami S, Hammami M, Mackrill JJ, Samadi M, Ghrairi T, Vejux A, Lizard G. 7-Ketocholesterol: Effects on viral infections and hypothetical contribution in COVID-19. J Steroid Biochem Mol Biol 2021; 212:105939. [PMID: 34118414 PMCID: PMC8188774 DOI: 10.1016/j.jsbmb.2021.105939] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/04/2021] [Accepted: 06/07/2021] [Indexed: 02/06/2023]
Abstract
7-Ketocholesterol, which is one of the earliest cholesterol oxidization products identified, is essentially formed by the auto-oxidation of cholesterol. In the body, 7-ketocholesterol is both provided by food and produced endogenously. This pro-oxidant and pro-inflammatory molecule, which can activate apoptosis and autophagy at high concentrations, is an abundant component of oxidized Low Density Lipoproteins. 7-Ketocholesterol appears to significantly contribute to the development of age-related diseases (cardiovascular diseases, age-related macular degeneration, and Alzheimer's disease), chronic inflammatory bowel diseases and to certain cancers. Recent studies have also shown that 7-ketocholesterol has anti-viral activities, including on SARS-CoV-2, which are, however, lower than those of oxysterols resulting from the oxidation of cholesterol on the side chain. Furthermore, 7-ketocholesterol is increased in the serum of moderately and severely affected COVID-19 patients. In the case of COVID-19, it can be assumed that the antiviral activity of 7-ketocholesterol could be counterbalanced by its toxic effects, including pro-oxidant, pro-inflammatory and pro-coagulant activities that might promote the induction of cell death in alveolar cells. It is therefore suggested that this oxysterol might be involved in the pathophysiology of COVID-19 by contributing to the acute respiratory distress syndrome and promoting a deleterious, even fatal outcome. Thus, 7-ketocholesterol could possibly constitute a lipid biomarker of COVID-19 outcome and counteracting its toxic effects with adjuvant therapies might have beneficial effects in COVID-19 patients.
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Affiliation(s)
- Imen Ghzaiel
- University Bourgogne Franche-Comté, Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA 7270 / Inserm, 21000 Dijon, France; University of Monastir, Faculty of Medicine, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', 5000 Monastir, Tunisia; University Tunis-El Manar, Faculty of Sciences of Tunis, 2092 Tunis, Tunisia.
| | - Khouloud Sassi
- University Bourgogne Franche-Comté, Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA 7270 / Inserm, 21000 Dijon, France; University Tunis El Manar, Laboratory of Onco-Hematology (LR05ES05), Faculty of Medicine, 1007 Tunis, Tunisia.
| | - Amira Zarrouk
- University of Monastir, Faculty of Medicine, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', 5000 Monastir, Tunisia; University of Sousse, Faculty of Medicine, Sousse, Tunisia.
| | - Thomas Nury
- University Bourgogne Franche-Comté, Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA 7270 / Inserm, 21000 Dijon, France.
| | - Mohamed Ksila
- University Bourgogne Franche-Comté, Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA 7270 / Inserm, 21000 Dijon, France; University Tunis-El Manar, Loboratory of Neurophysiology, Cellular Physiopathology and Valorisation of BioMoleecules, LR18ES03, Department of Biologie, Faculty of Sciences, 2092 Tunis, Tunisia.
| | - Valerio Leoni
- Laboratory of Clinical Chemistry, Hospitals of Desio, ASST-Brianza and Department of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy.
| | - Balkiss Bouhaouala-Zahar
- Laboratory of Venoms and Therapeutic Molecules, Pasteur Institute of Tunis & University of Tunis El Manar, 1002 Tunis, Tunisia.
| | - Sonia Hammami
- University of Monastir, Faculty of Medicine, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', 5000 Monastir, Tunisia.
| | - Mohamed Hammami
- University of Monastir, Faculty of Medicine, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', 5000 Monastir, Tunisia.
| | - John J Mackrill
- Department of Physiology, School of Medicine, University College Cork, Cork, Ireland.
| | - Mohammad Samadi
- LCPMC-A2, ICPM, Dept of Chemistry, Univ. Lorraine, Metz Technopôle, Metz, France.
| | - Taoufik Ghrairi
- University Tunis-El Manar, Loboratory of Neurophysiology, Cellular Physiopathology and Valorisation of BioMoleecules, LR18ES03, Department of Biologie, Faculty of Sciences, 2092 Tunis, Tunisia.
| | - Anne Vejux
- University Bourgogne Franche-Comté, Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA 7270 / Inserm, 21000 Dijon, France.
| | - Gérard Lizard
- University Bourgogne Franche-Comté, Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA 7270 / Inserm, 21000 Dijon, France.
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Baati T, Njim L, Jaafoura S, Aouane A, Neffati F, Ben Fradj N, Kerkeni A, Hammami M, Hosni K. Assessment of Pharmacokinetics, Toxicity, and Biodistribution of a High Dose of Titanate Nanotubes Following Intravenous Injection in Mice: A Promising Nanosystem of Medical Interest. ACS Omega 2021; 6:21872-21883. [PMID: 34497882 PMCID: PMC8412905 DOI: 10.1021/acsomega.1c01733] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 08/02/2021] [Indexed: 05/10/2023]
Abstract
Titanate nanotubes (TiNTs) produced by the static hydrothermal process present a promising nanosystem for nanomedicine. However, the behavior of these nanotubes in vivo is not yet clarified. In this work, for the first time, we investigated the toxicity of these materials, their pharmacokinetic profile, and their biodistribution in mice. A high dose of TiNTs (45 mg/kg) was intravenously injected in mice and monitored from 6 h to 45 days. The histological examination of organs and the analysis of liver and kidney function markers and then the inflammatory response were in agreement with a long-term innocuity of these nanomaterials. The parameters of pharmacokinetics revealed the rapid clarification of TiNTs from the bloodstream after 6 h of the intravenous injection which then mainly accumulated in the liver and spleen, and their degradation and clearance in these tissues were relatively slow (>4 weeks). Interestingly, an important property of these materials is their slow dissolution under the lysosome acid environment, rendering them biodegradable. It is noteworthy that TiNTs were directly eliminated in urine and bile ducts without obvious toxicity in mice. Altogether, all these typical in vivo tests studying the TiNT pharmacokinetics, toxicity, and biodistribution are supporting the use of these biocompatible nanomaterials in the biomedical field, especially as a nanocarrier-based drug delivery system.
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Affiliation(s)
- Tarek Baati
- Laboratoire
des Substances Naturelles, Institut National
de Recherche et d’Analyse Physico-Chimique, Biotechpole Sidi Thabet 2020, Tunisie
| | - Leila Njim
- Service
d’Anatomie Pathologique, CHU de Monastir, Monastir 5000, Tunisie
| | - Sabra Jaafoura
- Laboratoire
des Substances Naturelles, Institut National
de Recherche et d’Analyse Physico-Chimique, Biotechpole Sidi Thabet 2020, Tunisie
- Laboratoire
ABCDF (LR12ES10), Faculté de Médecine Dentaire, Université de Monastir, Monastir 5000, Tunisie
| | - Aicha Aouane
- Centre
de Microscopie Electronique, Université
Aix-Marseille, IBDML
Campus Luminy, Marseille 3007, France
| | - Fadoua Neffati
- Laboratoire
de Biochimie et de Toxicologie, CHU de Monastir, Monastir 5000, Tunisie
| | - Nadia Ben Fradj
- Laboratoire
de Pharmacologie, Faculté de Médecine
de Monastir, Monastir 5000, Tunisie
| | - Abdelhamid Kerkeni
- Laboratoire
de Biophysique, Faculté de Médecine
de Monastir, Monastir 5000, Tunisie
| | - Mohamed Hammami
- Laboratoire
des Substances Naturelles, Institut National
de Recherche et d’Analyse Physico-Chimique, Biotechpole Sidi Thabet 2020, Tunisie
| | - Karim Hosni
- Laboratoire
des Substances Naturelles, Institut National
de Recherche et d’Analyse Physico-Chimique, Biotechpole Sidi Thabet 2020, Tunisie
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Nury T, Yammine A, Ghzaiel I, Sassi K, Zarrouk A, Brahmi F, Samadi M, Rup-Jacques S, Vervandier-Fasseur D, Pais de Barros J, Bergas V, Ghosh S, Majeed M, Pande A, Atanasov A, Hammami S, Hammami M, Mackrill J, Nasser B, Andreoletti P, Cherkaoui-Malki M, Vejux A, Lizard G. Attenuation of 7-ketocholesterol- and 7β-hydroxycholesterol-induced oxiapoptophagy by nutrients, synthetic molecules and oils: Potential for the prevention of age-related diseases. Ageing Res Rev 2021; 68:101324. [PMID: 33774195 DOI: 10.1016/j.arr.2021.101324] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/10/2021] [Accepted: 03/12/2021] [Indexed: 12/18/2022]
Abstract
Age-related diseases for which there are no effective treatments include cardiovascular diseases; neurodegenerative diseases such as Alzheimer's disease; eye disorders such as cataract and age-related macular degeneration; and, more recently, Severe Acute Respiratory Syndrome (SARS-CoV-2). These diseases are associated with plasma and/or tissue increases in cholesterol derivatives mainly formed by auto-oxidation: 7-ketocholesterol, also known as 7-oxo-cholesterol, and 7β-hydroxycholesterol. The formation of these oxysterols can be considered as a consequence of mitochondrial and peroxisomal dysfunction, leading to increased in oxidative stress, which is accentuated with age. 7-ketocholesterol and 7β-hydroxycholesterol cause a specific form of cytotoxic activity defined as oxiapoptophagy, including oxidative stress and induction of death by apoptosis associated with autophagic criteria. Oxiaptophagy is associated with organelle dysfunction and in particular with mitochondrial and peroxisomal alterations involved in the induction of cell death and in the rupture of redox balance. As the criteria characterizing 7-ketocholesterol- and 7β-hydroxycholesterol-induced cytotoxicity are often simultaneously observed in major age-related diseases (cardiovascular diseases, age-related macular degeneration, Alzheimer's disease) the involvement of these oxysterols in the pathophysiology of the latter seems increasingly likely. It is therefore important to better understand the signalling pathways associated with the toxicity of 7-ketocholesterol and 7β-hydroxycholesterol in order to identify pharmacological targets, nutrients and synthetic molecules attenuating or inhibiting the cytotoxic activities of these oxysterols. Numerous natural cytoprotective compounds have been identified: vitamins, fatty acids, polyphenols, terpenes, vegetal pigments, antioxidants, mixtures of compounds (oils, plant extracts) and bacterial enzymes. However, few synthetic molecules are able to prevent 7-ketocholesterol- and/or 7β-hydroxycholesterol-induced cytotoxicity: dimethyl fumarate, monomethyl fumarate, the tyrosine kinase inhibitor AG126, memantine, simvastatine, Trolox, dimethylsufoxide, mangafodipir and mitochondrial permeability transition pore (MPTP) inhibitors. The effectiveness of these compounds, several of which are already in use in humans, makes it possible to consider using them for the treatment of certain age-related diseases associated with increased plasma and/or tissue levels of 7-ketocholesterol and/or 7β-hydroxycholesterol.
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Khamlaoui W, Mehri S, Hammami S, Elosua R, Hammami M. Association of angiotensin-converting enzyme insertion/deletion (ACE I/D) and angiotensinogen (AGT M235T) polymorphisms with the risk of obesity in a Tunisian population. J Renin Angiotensin Aldosterone Syst 2021; 21:1470320320907820. [PMID: 32356512 PMCID: PMC7227147 DOI: 10.1177/1470320320907820] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Objective: This study aims to determine whether genetic variants in ACE I/D and AGT M235T are associated with overweight-obesity and body mass index (BMI) in a Tunisian population. Methods: We designed an age- and sex-matched case-control study. The height and weight were measured and BMI was calculated. A total of 259 overweight-obese patients and 369 healthy controls were genotyped for the ACE I/D and AGT M235T genes using polymerase chain reaction and restriction fragment length polymorphism. Results: ACE I/D and AGT M235T genes were associated with BMI, waist circumference and overweight-obesity (p⩽0.001). In an additive model, the I and the M alleles in ACE and AGT variants, respectively, were associated with a lower BMI: –1.45 and −2.29 units, respectively. ACE I/D genotypes were associated with dyslipidemia; AGT M235T genotypes with dyslipidemia and total cholesterol. Conclusion: These data suggest that variations in ACE I/D and AGT M235T affect the risk of overweight-obesity, BMI and dyslipidemia, and could point to a key molecular pathway of metabolic syndrome and its related comorbidities.
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Affiliation(s)
- Wided Khamlaoui
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods and Vascular Health", Faculty of Medicine, University of Monastir, Tunisia
| | - Sounira Mehri
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods and Vascular Health", Faculty of Medicine, University of Monastir, Tunisia
| | - Sonia Hammami
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods and Vascular Health", Faculty of Medicine, University of Monastir, Tunisia.,Department of Internal Medicine, CHU F. Bourguiba, Tunisia
| | - Roberto Elosua
- Cardiovascular Epidemiology and Genetics, Institut Hospital del Mar d'Investigacions Mèdiques, Spain
| | - Mohamed Hammami
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods and Vascular Health", Faculty of Medicine, University of Monastir, Tunisia
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Hammouda S, Ghzaiel I, Picón-Pagès P, Meddeb W, Khamlaoui W, Hammami S, Muñoz FJ, Hammami M, Zarrouk A. Nigella and Milk Thistle Seed Oils: Potential Cytoprotective Effects against 7β-Hydroxycholesterol-Induced Toxicity on SH-SY5Y Cells. Biomolecules 2021; 11:797. [PMID: 34071950 PMCID: PMC8229989 DOI: 10.3390/biom11060797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/22/2021] [Accepted: 05/24/2021] [Indexed: 01/23/2023] Open
Abstract
Oxysterols are assumed to be the driving force behind numerous neurodegenerative diseases. In this work, we aimed to study the ability of 7β-hydroxycholesterol (7β-OHC) to trigger oxidative stress and cell death in human neuroblastoma cells (SH-SY5Y) then the capacity of Nigella sativa and Milk thistle seed oils (NSO and MTSO, respectively) to oppose 7β-OHC-induced side effects. The impact of 7β-OHC, associated or not with NSO or MTSO, was studied on different criteria: cell viability; redox status, and apoptosis. Oxidative stress was assessed through the intracellular reactive oxygen species (ROS) production, levels of enzymatic and non-enzymatic antioxidants, lipid, and protein oxidation products. Our results indicate that 7β-OHC (40 µg/mL) exhibit pr-oxidative and pro-apoptotic activities shown by a decrease of the antioxidant enzymatic activities and an increase of ROS production, lipid, and protein oxidation end products as well as nitrotyrosine formation and caspase 3 activation. However, under the pre-treatment with NSO, and especially with MTSO (100 µg/mL), a marked attenuation of oxidative damages was observed. Our study suggests harmful effects of 7β-OHC consisting of pro-oxidative, anti-proliferative, and pro-apoptotic activities that may contribute to neurodegeneration. NSO and especially MTSO showed potential cytoprotection against the cytotoxicity of 7β-OHC.
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Affiliation(s)
- Souha Hammouda
- Biochemistry Laboratory, LR12ES05 Nutrition-Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir, Monastir 5019, Tunisia; (S.H.); (I.G.); (W.K.); (S.H.); (M.H.)
| | - Imen Ghzaiel
- Biochemistry Laboratory, LR12ES05 Nutrition-Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir, Monastir 5019, Tunisia; (S.H.); (I.G.); (W.K.); (S.H.); (M.H.)
| | - Pol Picón-Pagès
- Laboratory of Molecular Physiology, Faculty of Health and Life Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain; (P.P.-P.); (F.J.M.)
| | - Wiem Meddeb
- Faculty of Sciences, University of Carthage, Bizerte 7021, Tunisia;
| | - Wided Khamlaoui
- Biochemistry Laboratory, LR12ES05 Nutrition-Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir, Monastir 5019, Tunisia; (S.H.); (I.G.); (W.K.); (S.H.); (M.H.)
| | - Sonia Hammami
- Biochemistry Laboratory, LR12ES05 Nutrition-Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir, Monastir 5019, Tunisia; (S.H.); (I.G.); (W.K.); (S.H.); (M.H.)
| | - Francisco J. Muñoz
- Laboratory of Molecular Physiology, Faculty of Health and Life Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain; (P.P.-P.); (F.J.M.)
| | - Mohamed Hammami
- Biochemistry Laboratory, LR12ES05 Nutrition-Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir, Monastir 5019, Tunisia; (S.H.); (I.G.); (W.K.); (S.H.); (M.H.)
| | - Amira Zarrouk
- Biochemistry Laboratory, LR12ES05 Nutrition-Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir, Monastir 5019, Tunisia; (S.H.); (I.G.); (W.K.); (S.H.); (M.H.)
- Faculty of Medicine, Sousse, University of Sousse, Sousse 4000, Tunisia
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Altuwairqi K, Jarraya SK, Allinjawi A, Hammami M. Student behavior analysis to measure engagement levels in online learning environments. Signal Image Video Process 2021; 15:1387-1395. [PMID: 34007342 PMCID: PMC8119613 DOI: 10.1007/s11760-021-01869-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 01/22/2021] [Accepted: 01/29/2021] [Indexed: 06/12/2023]
Abstract
After the COVID-19 pandemic, no one refutes the importance of smart online learning systems in the educational process. Measuring student engagement is a crucial step towards smart online learning systems. A smart online learning system can automatically adapt to learners' emotions and provide feedback about their motivations. In the last few decades, online learning environments have generated tremendous interest among researchers in computer-based education. The challenge that researchers face is how to measure student engagement based on their emotions. There has been an increasing interest towards computer vision and camera-based solutions as technology that overcomes the limits of both human observations and expensive equipment used to measure student engagement. Several solutions have been proposed to measure student engagement, but few are behavior-based approaches. In response to these issues, in this paper, we propose a new automatic multimodal approach to measure student engagement levels in real time. Thus, to offer robust and accurate student engagement measures, we combine and analyze three modalities representing students' behaviors: emotions from facial expressions, keyboard keystrokes, and mouse movements. Such a solution operates in real time while providing the exact level of engagement and using the least expensive equipment possible. We validate the proposed multimodal approach through three main experiments, namely single, dual, and multimodal research modalities in novel engagement datasets. In fact, we build new and realistic student engagement datasets to validate our contributions. We record the highest accuracy value (95.23%) for the multimodal approach and the lowest value of "0.04" for mean square error (MSE).
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Affiliation(s)
- Khawlah Altuwairqi
- Department of Computer Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Salma Kammoun Jarraya
- Department of Computer Science, King Abdulaziz University, Jeddah, Saudi Arabia
- MIRACL-Laboratory, Sfax, Tunisia
| | - Arwa Allinjawi
- Department of Computer Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohamed Hammami
- MIRACL-Laboratory, Sfax, Tunisia
- Department of Computer Science, Faculty of Science, Sfax University, Sfax, Tunisia
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Issaoui M, Mosbahi M, Barbieri S, Flamini G, Bendini A, Ascrizzi R, Gallina Toschi T, Hammami M. Preliminary investigation of possible effects of mineral clay treatment applied to oils produced from olives: focus on moisture removal and compositional changes. grasasaceites 2021. [DOI: 10.3989/gya.1021192] [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] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
In this preliminary study, two non-filtered virgin olive oils (one freshly produced VOO-N; one VOO-O stored for one year) were subjected to moisture removal with mineral clay (raw or activated) and analyses were performed to attest possible effects on the quality of the product. The results demonstrated that the treatment of oil with mineral clay at 36-38 °C had no negative effect on the basic quality parameters or on the volatile comound profile. On the other hand, a significant decrease in the water amount as well as in pigments was observed in the samples subjected to this kind of treatment, in particular with raw clay. Regarding the colour measurement, the lightness (L) as well as the consumers’ acceptability exhibited a marked increase when oils were treated with raw clay.
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Khamlaoui W, Mehri S, Hammami S, Hammouda S, Chraeif I, Elosua R, Hammami M. Association Between Genetic Variants in FADS1-FADS2 and ELOVL2 and Obesity, Lipid Traits, and Fatty Acids in Tunisian Population. Clin Appl Thromb Hemost 2021; 26:1076029620915286. [PMID: 32584610 PMCID: PMC7427023 DOI: 10.1177/1076029620915286] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to determine whether genetic variants in FADS1/FADS2 and ELOVL2 are associated with overweight–obesity and body mass index (BMI) and to assess the association between these genetic variants and lipid profile and fatty acid levels. A total of 259 overweight–obese patients were compared to 369 healthy controls. FADS1, FADS2, and ELOVL2 genes were associated with BMI and overweight–obesity (P ≤ .001). In an additive model, the C allele in each of these variants was associated with a lower BMI: −1.18, −0.90, and −1.23 units, respectively. Higher amounts of total cholesterol, low-density lipoprotein cholesterol, total saturated fatty acids (lauric [12:0], myristic [C14:0], palmitic [C16:0], stearic [C18:0], arachidic [20:0], lignoceric [24:0]), monounsaturated fatty acids (myristoleic [C14:1], erucic [C22:1 n-9]), and polyunsaturated fatty acids (α-linolenic [ALA, 18:3 n-3], docosahexaenoic [DHA, C22:6 n-3], eicosapentaenoic acid [EPA, C20:5n-3], arachidonic acid [AA, 20:4n-6], and conjugated linolenic acids [CLA1 and CLA2]) were shown in patients. A significant increase in D6D activities presented by 20:4n-6/18:2n-6 and 18:3n-6/18:2n-6, Δ9 desaturase (D9D) activity, estimated by the ratio 18:1n-9/18:0 and elongase activities (AE), and estimated by the ratio of docosatetraenoic/AA and DPA/EPA in patients. The C minor allele of FADS1 had significantly lower DHA. A significant decrease in stearic acid, EPA, and AE activity (docosatetraenoic/AA) was revealed in patients with the minor allele carriers of FADS2. The C minor allele of ELOVL2 had significantly lower ALA, EPA, DPA, and D6D activity (C20:4 n-6/C18:2n-6). These data suggest that variations in FADS1, FADS2, and ELOVL2 affect the risk of overweight–obesity and the level of circulating fatty acids and could point to a key molecular pathway of metabolic syndrome and its related comorbidities.
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Affiliation(s)
- Wided Khamlaoui
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods and Vascular Health," Faculty of Medicine, University of Monastir, Tunisia
| | - Sounira Mehri
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods and Vascular Health," Faculty of Medicine, University of Monastir, Tunisia
| | - Sonia Hammami
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods and Vascular Health," Faculty of Medicine, University of Monastir, Tunisia.,Department of Internal Medicine, CHU F. Bourguiba, Monastir, Tunisia
| | - Souha Hammouda
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods and Vascular Health," Faculty of Medicine, University of Monastir, Tunisia
| | - Imed Chraeif
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods and Vascular Health," Faculty of Medicine, University of Monastir, Tunisia
| | - Roberto Elosua
- Cardiovascular Epidemiology and Genetics, Institute Hospital del Mar d'Investigacions Mediques, Barcelona, Spain
| | - Mohamed Hammami
- Biochemistry Laboratory, LR12ES05 "Nutrition-Functional Foods and Vascular Health," Faculty of Medicine, University of Monastir, Tunisia
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Jlalia I, Zouaoui F, Chabbah T, Chatti S, Saint-Martin P, Casabianca H, Minot S, Bessueille F, Marestin C, Mercier R, Errachid A, Abderrazak H, Hammami M, Jaffrezic-Renault N. Adsorption Characteristics of WFD Heavy Metal Ions on New Biosourced Polyimide Films Determined by Electrochemical Impedance Spectroscopy. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-020-01842-w] [Citation(s) in RCA: 2] [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: 02/07/2023]
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Zarrouk A, Hammouda S, Ghzaiel I, Hammami S, Khamlaoui W, Ahmed SH, Lizard G, Hammami M. Association Between Oxidative Stress and Altered Cholesterol Metabolism in Alzheimer's Disease Patients. Curr Alzheimer Res 2021; 17:823-834. [PMID: 33272182 DOI: 10.2174/1567205017666201203123046] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 09/10/2020] [Accepted: 09/22/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Oxidative stress is the main feature of several diseases including Alzheimer's disease (AD). The involvement of oxysterols derivates has been recently reported. OBJECTIVE The aim of this study was to evaluate the implication of oxidative stress in cholesterol impairment in AD patients. METHODS A case-control study was conducted on 56 AD patients and 97 controls. Levels of oxidative biomarkers, including lipid peroxidation products and antioxidant enzyme activities were measured with spectrophotometric methods on red blood cells (RBCs) and plasma. Cholesterol precursors and oxysterols (7-Ketocholeterol (7KC), 7α-hydroxycholesterol (7α-OHC), 7β-hydroxycholesterol (7β-OHC), 24Shydroxycholesterol (24S-OH), 25-hyroxycholesterol (25-OHC), and 27-hydroxycholesterol (27-OHC), in plasma were quantified by gas chromatography coupled with mass spectrometry. RESULTS In RBCs and plasma of AD patients, a significant decrease of glutathione peroxidase (GPx) activity was detected associated with raised levels of malondialdehyde (MDA). A decreased level of lanosterol and an accumulation of 7β-OHC, 24S-OHC, 27-OHC, and 25-OHC that were higher in plasma of AD patients, compared to controls, were also observed in AD patients. Mini-Mental State Examination (MMSE) score was correlated with MDA and conjugated dienes (CD) levels in plasma. Besides, the MDA level in RBCs was correlated with 7β-OHC. Binary logistic regression revealed an association between GPx activity and AD (OR=0.895, 95%CI: 0.848-0.945. P<0.001). CONCLUSION Our data consolidate the relationship between the rupture of redox homeostasis and lipid and cholesterol oxidation in AD.
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Affiliation(s)
- Amira Zarrouk
- Faculty of Medicine, University Monastir, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', Monastir, Tunisia
| | - Souha Hammouda
- Faculty of Medicine, University Monastir, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', Monastir, Tunisia
| | - Imen Ghzaiel
- Faculty of Medicine, University Monastir, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', Monastir, Tunisia
| | - Sonia Hammami
- Faculty of Medicine, University Monastir, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', Monastir, Tunisia
| | - Wided Khamlaoui
- Faculty of Medicine, University Monastir, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', Monastir, Tunisia
| | - Samia H Ahmed
- Faculty of Medicine, University Monastir, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', Monastir, Tunisia
| | - Gérard Lizard
- University Bourgogne Franche-Comte, Team, Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism, EA 7270 / Inserm, Dijon, France
| | - Mohamed Hammami
- Faculty of Medicine, University Monastir, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', Monastir, Tunisia
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Altuwairqi K, Jarraya SK, Allinjawi A, Hammami M. A new emotion–based affective model to detect student’s engagement. Journal of King Saud University - Computer and Information Sciences 2021. [DOI: 10.1016/j.jksuci.2018.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Chtourou I, Fendri E, Hammami M. Automatic enrolment for gait-based person re-identification under various view angles. IJBM 2021. [DOI: 10.1504/ijbm.2021.117868] [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: 11/21/2022]
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Fendri E, Hammami M, Chtourou I. Automatic enrolment for gait-based person re-identification under various view angles. IJBM 2021. [DOI: 10.1504/ijbm.2021.10038954] [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: 11/21/2022]
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Amri Z, Ben Khedher MR, Zaibi MS, Kharroubi W, Turki M, Ayadi F, Hammami M. Anti-diabetic effects of pomegranate extracts in long-term high fructose-fat fed rats. Clin Phytosci 2020. [DOI: 10.1186/s40816-020-00202-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Abstract
Background
A high-sugar or/and high-fat diets is a major risk factors for obesity. However, increased fruit and vegetable intake has been recently linked to obesity prevention. The aim of the present study was to investigate the preventive effects of pomegranate leaves (PL), juice (PJ) and peel (PP) extracts, on insulin resistance and oxidative stress in high fat and high fructose diet-induced obese rats.
Methods
Obesity in rats was induced by consumption of diet high in saturated fat and fructose (HFD) for a long period (12 weeks).
Results
Compared to the control group (CG) fed chow died, the high fat and high fructose diet (HFD) group showed a significant increase in the fasted plasma levels of glucose (29.8%), insulin (45%), amylase (70%) and lipase (54%). Moreover, HFD feeding has increased lipid peroxidation and protein carbonylation and decreased antioxidant enzymes levels. However, PL, PJ and PP treatment markedly prevents glucose intolerance, insulin resistance and oxidative stress and decrease amylase and lipase levels.
Conclusion
These findings highlight that a long-term intake of pomegranate extracts might be a potential alternative strategy for the prevention of a HFD induced insulin resistance and oxidative stress.
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Ben Khedher MR, Hafsa J, Haddad M, Hammami M. Inhibition of Protein Glycation by Combined Antioxidant and Antiglycation Constituents from a Phenolic Fraction of Sage (Salvia officinalis L.). Plant Foods Hum Nutr 2020; 75:505-511. [PMID: 32740712 DOI: 10.1007/s11130-020-00838-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 06/11/2023]
Abstract
Disturbed advanced glycation end products (AGEs)-oxidative stress axis is strongly linked to vascular complications observed in diabetes and other metabolic conditions. Salvia officinalis L. (sage) is a medicinal plant used as an ingredient in foods and beverages and displays a wide range of biological and pharmacological activities including anti-diabetic effects. However, no study has assessed its anti-glycative potential. The aim of this study is to determine the phenolic compounds associated with the anti-glycation and antioxidant potential of sage methanol extract (SME). SME shows similar effects to aminoguanidine on fluorescent AGEs inhibition. It protects albumin damage from glycation (52.9 vs. 50.3%, respectively) by preventing the loss of protein thiol groups (50.0 vs. 44.3%, respectively) and by reducing protein carbonyl accumulation (67.4 vs. 70.5%, respectively). Moreover, linear regression and multivariate analysis support the efficient contribution of SME antioxidant capacity, as judged by DPPH, TBARS and iron chelating tests, in AGEs suppression. Furthermore, HPLC analysis revealed the presence of verbascoside as a novel phenolic constituent identified in sage leaves and suggests that the protective activity is mostly assigned to the presence of rosmarinic acid, resveratrol, quercetin, rutin and luteolin-7-O-glucoside. Likewise, the screening of SME phenolic content supports the contribution of various antioxidant substances to the observed effects. Therefore, a polyphenol enriched sage extract was able to inhibit the formation of AGEs and protein glycation. Our data unveils the promising properties of sage and its bioactive principles in the management of AGEs-mediated vascular complications observed in diabetes and other metabolic disorders.
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Affiliation(s)
- Mohamed Raâfet Ben Khedher
- Research Laboratory LR12ES05 'Nutrition - Functional Food & Vascular Health' Department of Biochemistry, Faculty of Medicine, University of Monastir, 5019, Monastir, Tunisia.
- Institut National de Recherche Scientifique - Centre Armand-Frappier Santé Biotechnologie, Laval, QC, H7V 1B7, Canada.
| | - Jawhar Hafsa
- Laboratory of Natural Resources Valorization, Department of AgroBioSciences, Mohammed VI Polytechnic University Benguerir, 43150, Ben Guerir, Morocco
| | - Mohamed Haddad
- Institut National de Recherche Scientifique - Centre Armand-Frappier Santé Biotechnologie, Laval, QC, H7V 1B7, Canada
| | - Mohamed Hammami
- Research Laboratory LR12ES05 'Nutrition - Functional Food & Vascular Health' Department of Biochemistry, Faculty of Medicine, University of Monastir, 5019, Monastir, Tunisia
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Mechri B, Tekaya M, Attia F, Hammami M, Chehab H. Drought stress improved the capacity of Rhizophagus irregularis for inducing the accumulation of oleuropein and mannitol in olive (Olea europaea) roots. Plant Physiol Biochem 2020; 156:178-191. [PMID: 32961433 DOI: 10.1016/j.plaphy.2020.09.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 09/04/2020] [Indexed: 06/11/2023]
Abstract
Olive trees are often subjected to a prolonged dry season with low water availability, which induces oxidative stress. Arbuscular mycorrhizal (AM) symbioses can improve olive plant tolerance to water deficit. This study investigated several aspects related to drought tolerance in AM fungi olive plants. Non-AM and AM plants were grown under well-watered or drought-stressed conditions, and mycorrhizal growth response, neutral lipid fatty acid (NLFA)16:1ω5 and phospholipid fatty acid (PLFA) 16:1ω5 in roots (intraradical mycelium) and in soil (extraradical mycelium), carbohydrates (monosaccharides, disaccharides and polyols) and phenolic compounds (phenolic alcohols, flavonoids, lignans, secoiridoids and hydroxycinnamic acid derivatives) were determined. Results showed that the amounts of PLFA 16:1ω5 and NLFA 16:1ω5 were significantly influenced by drought stress conditions. The NLFA 16:1ω5/PLFA 16:1ω5 ratio showed a dramatic decrease (-62%) with the application of water deficit stress, indicating that AM fungi allocated low carbon to storage structures under stress conditions. Mannitol and verbascoside are the main compounds detected in the roots of well-watered plants, whereas oleuropein and mannitol are the main compounds differentially accumulated in the roots of water-stressed plants. The oleuropein/verbascoside ratio increased in the case of drought-stressed AM plants by 30%, while the mannitol/oleuropein ratio was decreased by 46%, when compared to the non-AM stressed plants. Mycorrhization therefore oriented the flux toward the biosynthetic pathway of oleuropein and the data suggest that sugar and phenolic compound metabolism may have been redirected to the formation of oleuropein in roots of AM stressed plants, that may underlie their enhanced tolerance to drought stress.
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Affiliation(s)
- Beligh Mechri
- Laboratory of Biochemistry, USCR Mass Spectrometry, LR-NAFS/LR12ES05 Nutrition Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir, 5019, Monastir, Tunisia.
| | - Meriem Tekaya
- Laboratory of Biochemistry, USCR Mass Spectrometry, LR-NAFS/LR12ES05 Nutrition Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir, 5019, Monastir, Tunisia
| | - Faouzi Attia
- The Olive Tree Institute, Unit Specializing in Sousse, Ibn Khaldoun Street B.P. 14, 4061, Sousse, Tunisia
| | - Mohamed Hammami
- Laboratory of Biochemistry, USCR Mass Spectrometry, LR-NAFS/LR12ES05 Nutrition Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir, 5019, Monastir, Tunisia
| | - Hechmi Chehab
- The Olive Tree Institute, Unit Specializing in Sousse, Ibn Khaldoun Street B.P. 14, 4061, Sousse, Tunisia
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Hammouda S, Ghzaiel I, Khamlaoui W, Hammami S, Mhenni SY, Samet S, Hammami M, Zarrouk A. Genetic variants in FADS1 and ELOVL2 increase level of arachidonic acid and the risk of Alzheimer's disease in the Tunisian population. Prostaglandins Leukot Essent Fatty Acids 2020; 160:102159. [PMID: 32682282 DOI: 10.1016/j.plefa.2020.102159] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/15/2020] [Accepted: 07/02/2020] [Indexed: 12/21/2022]
Abstract
Polyunsaturated fatty acids (PUFAs) are closely related to various physiological conditions. In several age-related diseases including Alzheimer's disease (AD) altered PUFAs metabolism has been reported. However, the mechanism behind PUFAs impairment and AD developpement remains unclear. In humans, PUFAs biosynthesis requires delta-5 desaturase (D5D), delta-6 desaturase (D6D) and elongase 2 activities; which are encoded by fatty acid desaturase 1 (FADS1), fatty acid desaturase 2 (FADS2), and elongation of very-long-chain fatty acids-like 2 (ELOVL2) genes, respectively. In the present work, we aim to assess whether genetic variants in FADS1, FADS2 and ELOVL2 genes influence plasma and erythrocyte PUFA composition and AD risk. A case-control study was carried out in 113 AD patients and 161 healthy controls.Rs174556, rs174617, and rs3756963 of FADS1, FADS2, and ELOVL2 genes, respectively were genotyped using PCR-RFLP. PUFA levels were quantified using Gas Chromatography. Genotype distributions of rs174556 (FADS1) and rs3756963 (ELOVL2) were different between case and control groups. The genotype TT of rs174556 and rs3756963 single nucleotide polymorphism (SNP) increases significantly the risk of AD in our population. PUFA analysis showed higher plasma and erythrocyte arachidonic acid (AA) level in patients with AD, whereas only plasma docosahexaenoic acid (DHA) was significantly decreased in AD patients. The indexes AA/Dihomo-gamma-linolenic acid (DGLA) and C24:4n-6/Adrenic acid (AdA) were both higher in the AD group. Interestingly, patients with TT genotype of rs174556 presented higher AA level and AA/DGLA index in both plasma and erythrocyte. In addition, higher AA and AA/DGLA index were observed in erythrocyte of TT genotype ofrs3756963 carrier's patients. Along with, positive correlation between AA/DGLA index, age or Gamma-linolenic acid (GLA)/ Linoleic acid (LA) index was seen in erythrocyte and /or plasma of AD patients. After adjustment for confounding factors, the genotype TT of rs174556, erythrocyte AA and AA/DGLA index were found to be predictive risk factors for AD while plasma DHA was found associated with lower AD risk. Both rs174556 and rs3756963 influence AD risk in the Tunisian population and they are likely associated with high AA level. The combination of the two variants increases further the susceptibility to AD. We suggest that FADS1 and ELOVL2 variants could likely regulate the efficiency of AA biosynthesis which could be at the origin of inflammatory derivate.
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Affiliation(s)
- Souha Hammouda
- Biochemistry Laboratory, LR12ES05 LR-NAFS 'Nutrition - Functional Food & Health' Faculty of Medicine Monastir, Tunisia
| | - Imen Ghzaiel
- Biochemistry Laboratory, LR12ES05 LR-NAFS 'Nutrition - Functional Food & Health' Faculty of Medicine Monastir, Tunisia
| | - Wided Khamlaoui
- Biochemistry Laboratory, LR12ES05 LR-NAFS 'Nutrition - Functional Food & Health' Faculty of Medicine Monastir, Tunisia
| | - Sonia Hammami
- Biochemistry Laboratory, LR12ES05 LR-NAFS 'Nutrition - Functional Food & Health' Faculty of Medicine Monastir, Tunisia; Department of Internal Medicine Bourguiba Monastir, Geriatric unit, Monastir Tunisia
| | | | - Slim Samet
- Department of neurology, Regional hospital of Kairouan. Tunisia
| | - Mohamed Hammami
- Biochemistry Laboratory, LR12ES05 LR-NAFS 'Nutrition - Functional Food & Health' Faculty of Medicine Monastir, Tunisia
| | - Amira Zarrouk
- Biochemistry Laboratory, LR12ES05 LR-NAFS 'Nutrition - Functional Food & Health' Faculty of Medicine Monastir, Tunisia; Biochemistry Laboratory, Faculty of Medicine Sousse. Tunisia.
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Abstract
PurposeThe purpose of this paper is to analyze cloud reviews according to the end-user context and requirements.Design/methodology/approachpropose a comprehensive knowledge base composed of interconnected Web Ontology Language, namely, modular ontology for cloud service opinion analysis (SOPA). The SOPA knowledge base will be the basis of context-aware cloud service analysis using consumers' reviews. Moreover, the authors provide a framework to evaluate cloud services based on consumers' reviews opinions.FindingsThe findings show that there is a positive impact of personalizing the cloud service analysis by considering the reviewers' contexts in the performance of the framework. The authors also proved that the SOPA-based framework outperforms the available cloud review sites in term of precision, recall and F-measure.Research limitations/implicationsLimited information has been provided in the semantic web literature about the relationships between the different domains and the details on how that can be used to evaluate cloud service through consumer reviews and latent opinions. Furthermore, existing approaches are lacking lightweight and modular mechanisms which can be utilized to effectively exploit information existing in social media.Practical implicationsThe SOPA-based framework facilitates the opinion based service evaluation through a large number of consumer's reviews and assists the end-users in analyzing services as per their requirements and their own context.Originality/valueThe SOPA ontology is capable of representing the content of a product/service as well as its related opinions, which are extracted from the customer's reviews written in a specific context. Furthermore, the SOPA-based framework facilitates the opinion based service evaluation through a large number of consumer's reviews and assists the end-users in analyzing services as per their requirements and their own context.
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Nasrallah F, Hammami M, Omar S, Aribia H, Sanhaji H, Feki M. Semen Creatine and Creatine Kinase Activity as an Indicator of Sperm Quality. Clin Lab 2020; 66. [DOI: 10.7754/clin.lab.2020.191248] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Beslija S, Ceric T, Hasanbegovic B, Skenderi F, Alidžanović J, Kopric D, Marjanović I, Mekic-Abazovic A, Sisic I, Hammami M, Pasic A, Rasic A, Kapisazović E. Effects of delayed initiation of adjuvant trastuzumab for non-metastatic, HER2 positive breast cancer in a limited resources setting: ML25232 study final results. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz240.025] [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: 11/13/2022] Open
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Amri Z, Kharroubi W, Fidanzi-Dugas C, Leger DY, Hammami M, Liagre B. Growth Inhibitory and Pro-Apoptotic Effects of Ornamental Pomegranate Extracts in Du145 Human Prostate Cancer Cells. Nutr Cancer 2019; 72:932-938. [DOI: 10.1080/01635581.2019.1660385] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Zahra Amri
- Biochemistry Laboratory, LR12ES05 “Nutrition – Functional Foods and Vascular Health”, Faculty of Medicine, University of Monastir, Monastir, Tunisia
| | - Wafa Kharroubi
- Biochemistry Laboratory, LR12ES05 “Nutrition – Functional Foods and Vascular Health”, Faculty of Medicine, University of Monastir, Monastir, Tunisia
| | - Chloë Fidanzi-Dugas
- Laboratoire PEIRENE EA7500, Faculté de Pharmacie, Université de Limoges, Limoges, France
| | - David Yannick Leger
- Laboratoire PEIRENE EA7500, Faculté de Pharmacie, Université de Limoges, Limoges, France
| | - Mohamed Hammami
- Biochemistry Laboratory, LR12ES05 “Nutrition – Functional Foods and Vascular Health”, Faculty of Medicine, University of Monastir, Monastir, Tunisia
| | - Bertrand Liagre
- Laboratoire PEIRENE EA7500, Faculté de Pharmacie, Université de Limoges, Limoges, France
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Mechri B, Tekaya M, Hammami M, Chehab H. Root verbascoside and oleuropein are potential indicators of drought resistance in olive trees (Olea europaea L.). Plant Physiol Biochem 2019; 141:407-414. [PMID: 31228797 DOI: 10.1016/j.plaphy.2019.06.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/30/2019] [Accepted: 06/16/2019] [Indexed: 06/09/2023]
Abstract
Polyphenols are constituents of all higher plants. However, their biosynthesis is often induced when plants are exposed to abiotic stresses, such as drought. The aim of the present work was to determine the phenolic status in the roots of olive trees grown under water deficit conditions. The results revealed that roots of water-stressed plants had a higher content of total phenols. The main compound detected in well-watered olive tree roots was verbascoside. Oleuropein was established as the predominant phenolic compound of water-stressed plants. The oleuropein/verbascoside ratio varied between 0.31 and 6.02 in well-watered and water-stressed plants respectively, which could be a useful indicator of drought tolerance in olive trees. Furthermore, this study is the first to provide experimental evidence showing that luteolin-7-rutinoside, luteolin-7-glucoside and apigenin-7-glucoside were the dominant flavonoid glucosides in olive tree roots and showed the most significant variations under water stress.
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Affiliation(s)
- Beligh Mechri
- Laboratory of Biochemistry, USCR Mass Spectrometry, LR-NAFS/LR12ES05 Nutrition Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir, 5019, Monastir, Tunisia.
| | - Meriem Tekaya
- Laboratory of Biochemistry, USCR Mass Spectrometry, LR-NAFS/LR12ES05 Nutrition Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir, 5019, Monastir, Tunisia
| | - Mohamed Hammami
- Laboratory of Biochemistry, USCR Mass Spectrometry, LR-NAFS/LR12ES05 Nutrition Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir, 5019, Monastir, Tunisia
| | - Hechmi Chehab
- The Olive Tree Institute, Unit Specializing in Sousse, Ibn Khaldoun Street B.P. 14, 4061, Sousse, Tunisia
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Soltana H, Pinon A, Limami Y, Zaid Y, Khalki L, Zaid N, Salah D, Sabitaliyevich UY, Simon A, Liagre B, Hammami M. Antitumoral activity of Ficus carica L. on colorectal cancer cell lines. Cell Mol Biol (Noisy-le-grand) 2019; 65:6-11. [PMID: 31472041] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 08/05/2019] [Indexed: 06/10/2023]
Abstract
In traditional medicine, Ficus carica (also known as fig) latex is recognized as a remedy with various therapeutic effects. In the present study we investigated the antitumor activity of Ficus carica extracts and latex. We evaluated the effects of increasing concentrations of Ficus carica extracts and latex on HCT-116 and HT-29 human colorectal cell proliferation using MTT assay and apoptosis induction by evaluating PARP cleavage by Western blot analysis. Peel, pulp, leaves, whole fruit and latex extracts of Ficus carica exerted significant antiproliferative effects on HCT-116 (IC50 values 239, 343, 177, 299, 206 µg/ml) and HT-29 cells (IC50 values 207, 249, 230, 261, 182 µg/ml) after 48h of treatment. Furthermore, treatment with different extracts of Ficus carica induced apoptosis in both HT-29 and HCT-116 cancer cells. Leaves and latex extracts of Ficus carica showed the strongest antiproliferative activities. Overall, our results showed that these natural products are strong apoptosis inducers which suggest their use of for therapeutic purposes.
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Affiliation(s)
- Hala Soltana
- Biochemistry Laboratory, LR12ES05 "Nutrition- Functional Foods and vascular Health", Faculty of Medicine, University of Monastir, Monastir, Tunisia
| | - Aline Pinon
- Laboratory of Chemistry of Natural Substances, Faculty of Pharmacy, University of Limoges, FR 3503 GEIST, EA 1069, Limoges, France
| | - Youness Limami
- Research Center of Abulcasis University of Health Sciences, Rabat, Morocco
| | - Younes Zaid
- Research Center of Abulcasis University of Health Sciences, Rabat, Morocco
| | - Loubna Khalki
- Research Center, Mohammed VI University for Health Sciences, Casablanca, Morocco
| | - Nabil Zaid
- Department of biology, Faculty of Sciences, Mohammed V University, Rabat, Morocco
| | - Driss Salah
- Department of biology, Faculty of Sciences, Mohammed V University, Rabat, Morocco
| | | | - Alain Simon
- Laboratory of Chemistry of Natural Substances, Faculty of Pharmacy, University of Limoges, FR 3503 GEIST, EA 1069, Limoges, France
| | - Bertrand Liagre
- Laboratory of Chemistry of Natural Substances, Faculty of Pharmacy, University of Limoges, FR 3503 GEIST, EA 1069, Limoges, France
| | - Mohamed Hammami
- Biochemistry Laboratory, LR12ES05 "Nutrition- Functional Foods and vascular Health", Faculty of Medicine, University of Monastir, Monastir, Tunisia
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Soltana H, Pinon A, Limami Y, Zaid Y, Khalki L, Zaid N, Salah D, Sabitaliyevich UY, Simon A, Liagre B, Hammami M. Antitumoral activity of Ficus carica L. on colorectal cancer cell lines. Cell Mol Biol (Noisy-le-grand) 2019. [DOI: 10.14715/cmb/2019.65.6.2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Hammami M, Hammami F, Lahiani D, Elleuch E, Maaloul I, Marrekchi C, Hammami B, Ben Jemaa M. Santé reproductive chez les femmes vivant avec le VIH. Med Mal Infect 2019. [DOI: 10.1016/j.medmal.2019.04.356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Edziri H, Jaziri R, Chehab H, Verschaeve L, Flamini G, Boujnah D, Hammami M, Aouni M, Mastouri M. A comparative study on chemical composition, antibiofilm and biological activities of leaves extracts of four Tunisian olive cultivars. Heliyon 2019; 5:e01604. [PMID: 31193420 PMCID: PMC6529682 DOI: 10.1016/j.heliyon.2019.e01604] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [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: 03/25/2019] [Revised: 04/05/2019] [Accepted: 04/26/2019] [Indexed: 01/21/2023] Open
Abstract
Olea europaea L. is one of the most important fruit trees in Tunisia because of its content of many potentially bioactive compounds. The aim of this study was to evaluate the chemical composition, antibiofilm, antiradical and acethylcholinesterase inhibitory activities from four Tunisian cultivars of Olea europaea L., i.e. ‘Chetoui’, ‘Meski’, ‘Oueslati’ and ‘Jarboui’. By means of standardized methods, total phenols were determined and some of them characterized by HPLC. The total phenols and flavonoids contents were found to be the highest in the leaves of Chetoui cultivar. The Chetoui cultivar exhibited an important antioxidant and anticholinesterasic activity and an important anti-biofilm activity against Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus cereus, Candida albicans, Enterococcus faecalis and Escherichia coli, with percentages of inhibition comprised between 83 and 93% at 2xMIC values. Olive leaves extracts could be used in the control of bacterial biofilms in food and food-related environments.
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Affiliation(s)
- Hayet Edziri
- Laboratory of Transmissible Diseases and Biologically Active Substances, Faculty of Pharmacy, 5000, Monastir, Tunisia
| | - Raouf Jaziri
- Department of Healthcare Services and Hospital Management, University of Jeddah, Saudi Arabia.,Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Hechmi Chehab
- Institut of Olive Sousse, B.P.40 Ibn Khaldoun, 4061, Sousse, Tunisia
| | - Luc Verschaeve
- Sciensano, Risk and Health Impact Assessment Service, Brussels, Belgium.,Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Guido Flamini
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium.,Dipartimento di Farmacia, Via Bonanno 6, 56126, Pisa, Italy.,Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute" (NUTRAFOOD), Università di Pisa, Via del Borghetto 80, 56124, Pisa, Italy
| | - Dalenda Boujnah
- Institut of Olive Sousse, B.P.40 Ibn Khaldoun, 4061, Sousse, Tunisia
| | - Mohamed Hammami
- Laboratory of Biochemistry, USCR Mass Spectrometry, UR Nutrition and Metabolic Disorders, Faculty of Medicine, University of Monastir, 5000, Monastir, Tunisia
| | - Mahjoub Aouni
- Laboratory of Transmissible Diseases and Biologically Active Substances, Faculty of Pharmacy, 5000, Monastir, Tunisia
| | - Maha Mastouri
- Laboratory of Transmissible Diseases and Biologically Active Substances, Faculty of Pharmacy, 5000, Monastir, Tunisia
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Kaur N, Irshad A, Ohanisian L, Hammami M. BACTRIM-RESPONSIVE PCP IN ETANERCEPT-TREATED RA PATIENT WITH CHRONIC ADRENAL INSUFFICIENCY: CASE REPORT. Chest 2019. [DOI: 10.1016/j.chest.2019.02.084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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