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Ibrahim AE, Alamir SG, Al-Omairi M, Salman BI, Batakoushy HA, Hegazy MM, Al-Harrasi A. Tracking the Variations in Trace and Heavy Elements in Smoking Products Marketed in Oman and Egypt: Risk Assessment After Implementation of Constraining Protocols. Biol Trace Elem Res 2024:10.1007/s12011-024-04182-9. [PMID: 38656680 DOI: 10.1007/s12011-024-04182-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/09/2024] [Indexed: 04/26/2024]
Abstract
Tobacco smoking is becoming one of the major worldwide concerns regarding environmental pollution as well as health threats. In 2005, the World Health Organization (WHO) released the Framework Convention On Tobacco Control (FCTC), which outlined protocols for controlling tobacco products. Oman was one of the leading countries to follow these protocols; however, Egypt has only followed these protocols recently in 2020. One of the main challenges in tobacco product control is the variation in their trace element's types and amounts from country to country owing to differences in agriculture techniques and used chemical additives. Smoking releases different toxic metal ions found in them into the air, and hence, analyzing trace amounts of metals in tobacco smoking products is becoming more critical. The proposed research aims to evaluate the current levels of 11 heavy metals (namely, As, Pb, Cd, Co, Cr, Be, Ba, Mn, Ni, Fe, and Hg) in 22 tobacco products available in Egypt and Oman using inductively coupled plasma optical emission spectroscopy and a direct mercury analyzer. Although some elements such as Be, Co, and Cd were absent, the positive detection of As and Pb and the levels of Ba, Cr, and Ni are still alarming, especially for heavy smokers. The obtained results were then statistically related to previously published data in 2017 to explore the effectiveness of implementing the FCTC protocols within the Egyptian market. The outcomes suggested a positive impact of FCTC protocol implementation in Egypt, besides the lower levels of elemental content for Omani products compared to the Egyptian market.
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Affiliation(s)
- Adel Ehab Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz , Nizwa, 616, Oman.
| | - Samy G Alamir
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz , Nizwa, 616, Oman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abassia, 11566, Cairo, Egypt
| | - Mohamed Al-Omairi
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz , Nizwa, 616, Oman
| | - Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Hany A Batakoushy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Menoufia University, Shebin Elkom, 32511, Egypt
| | - Mostafa M Hegazy
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University (Boys), Cairo, 11884, Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Sinai University - Arish Branch, Arish, 45511, Egypt
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz , Nizwa, 616, Oman.
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Vimbi V, Shaffi N, Mahmud M. Interpreting artificial intelligence models: a systematic review on the application of LIME and SHAP in Alzheimer's disease detection. Brain Inform 2024; 11:10. [PMID: 38578524 PMCID: PMC10997568 DOI: 10.1186/s40708-024-00222-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 03/04/2024] [Indexed: 04/06/2024] Open
Abstract
Explainable artificial intelligence (XAI) has gained much interest in recent years for its ability to explain the complex decision-making process of machine learning (ML) and deep learning (DL) models. The Local Interpretable Model-agnostic Explanations (LIME) and Shaply Additive exPlanation (SHAP) frameworks have grown as popular interpretive tools for ML and DL models. This article provides a systematic review of the application of LIME and SHAP in interpreting the detection of Alzheimer's disease (AD). Adhering to PRISMA and Kitchenham's guidelines, we identified 23 relevant articles and investigated these frameworks' prospective capabilities, benefits, and challenges in depth. The results emphasise XAI's crucial role in strengthening the trustworthiness of AI-based AD predictions. This review aims to provide fundamental capabilities of LIME and SHAP XAI frameworks in enhancing fidelity within clinical decision support systems for AD prognosis.
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Affiliation(s)
- Viswan Vimbi
- College of Computing and Information Sciences, University of Technology and Applied Sciences, OM 311, Sohar, Sultanate of Oman
| | - Noushath Shaffi
- College of Computing and Information Sciences, University of Technology and Applied Sciences, OM 311, Sohar, Sultanate of Oman
| | - Mufti Mahmud
- Department of Computer Science, Nottingham Trent University, Nottingham, NG11 8NS, UK.
- Medical Technologies Innovation Facility, Nottingham Trent University, Nottingham, NG11 8NS, UK.
- Computing and Informatics Research Centre, Nottingham Trent University, Nottingham, NG11 8NS, UK.
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3
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Hussain M, Hussaini SS, Shariq M, AlMasoud N, AlZaidy GA, Hassan KF, Ali SK, Azooz RE, Siddiqui MA, Seku K. Frankincense-Based Functionalized Multiwalled Carbon Nanotubes with Iron Oxide Composites for Efficient Removal of Crystal Violet: Kinetic and Equilibrium Analysis. ACS Omega 2024; 9:11459-11470. [PMID: 38497024 PMCID: PMC10938398 DOI: 10.1021/acsomega.3c08011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 03/19/2024]
Abstract
In this study, novel adsorbents were developed by functionalizing multiwalled carbon nanotubes with frankincense (Fr-fMWCNT) and adding iron oxide (Fe3O4) to the adsorbent (Fr-fMWCNT-Fe3O4). The morphology, surface characteristics, and chemical nature of the synthesized samples were analyzed by using various characterization techniques. The prepared adsorbents were then applied for the elimination of the toxic dye, crystal violet (CV), from water-based solutions by employing a batch adsorption method. The effectiveness of materials for the adsorption of CV was investigated by tuning various effective experimental parameters (adsorbent dosage, dye quantity, pH, and contact time). In order to derive adsorption isotherms, the Langmuir and Freundlich adsorption models were investigated and compared. The Fr-fMWCNT and Fr-fMWCNT-Fe3O4 were found to remove 85 and 95% of the CV dye within 30 min of the adsorption experiment at pH 6, respectively. It was found that a pseudo-second-order reaction rate was consistent with the experimental adsorption kinetics. The equilibrium data demonstrated that the Langmuir model adequately explained the adsorption behavior of the CV dye on the Fr-fMWCNT and Fr-fMWCNT-Fe3O4 surfaces, respectively. According to the Langmuir study, the highest adsorption capacities of the dye are 434 mg/g for Fr-fMWCNT and 500 mg/g for Fr-fMWCNT-Fe3O4. Remediation of the CV dye using our novel composite materials has not been reported previously in the literature. The synthesized Fr-fMWCNT and Fr-fMWCNT-Fe3O4 adsorbents can be economical and green materials for the adsorptive elimination of CV dye from wastewater.
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Affiliation(s)
- Mushtaq Hussain
- Engineering
Department, College of Engineering and Technology, University of Technology and Applied Sciences, Shinas 324, Oman
| | - Syed Sulaiman Hussaini
- Engineering
Department, College of Engineering and Technology, University of Technology and Applied Sciences, Shinas 324, Oman
| | - Mohammad Shariq
- Department
of Physics, Faculty of Science, Integral
University, Lucknow 226026, India
| | - Najla AlMasoud
- Department
of Chemistry, College of Science, Princess
Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Ghadah Abdulrahman AlZaidy
- Department
of Physics, Faculty of Applied Science, Umm Al-Qura University, AlZahir Branch, Makkah 24383, Saudi Arabia
| | - Khaled F. Hassan
- Department
of Chemistry, College of Science, Jazan
University, Jazan 45142, Saudi Arabia
| | - Syed Kashif Ali
- Department
of Chemistry, College of Science, Jazan
University, Jazan 45142, Saudi Arabia
| | - Rehab E. Azooz
- Department
of Chemistry, College of Science, Jazan
University, Jazan 45142, Saudi Arabia
| | - Mohd Asim Siddiqui
- Engineering
Department, College of Engineering and Technology, University of Technology and Applied Sciences, Shinas 324, Oman
| | - Kondaiah Seku
- Engineering
Department, College of Engineering and Technology, University of Technology and Applied Sciences, Shinas 324, Oman
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4
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Changez M, Anwar MF, Alrahbi H. Olive Oil-Based Reverse Microemulsion for Stability and Topical Delivery of Methotrexate: In Vitro. ACS Omega 2024; 9:7012-7021. [PMID: 38371785 PMCID: PMC10870400 DOI: 10.1021/acsomega.3c08875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/18/2023] [Accepted: 01/17/2024] [Indexed: 02/20/2024]
Abstract
Hydrolysis of pharmaceutically active molecules can be in control under a confined environment of water-in-oil microemulsion. Stability of model drug methotrexate (MTX) in a sodium bis(2-ethylhexyl) sulfosuccinate (AOT) and olive oil microemulsion system has been evaluated. The physicochemical properties of AOT-MTX-water-olive oil reverse microemulsion (MTX-RM) were examined by UV-vis, Fourier transform infrared, and X-ray diffraction techniques, and the hydrodynamic size was determined by dynamic light scattering techniques and morphologies were characterized by a transmission electron microscope and atomic force microscope. In vitro permeation of MTX-RM through treated skin and its mechanism are evaluated by a UV-visible spectrophotometer, confocal laser scanning microscope, differential scanning calorimeter, and attenuated total reflecting infrared spectroscopy (ATR). The interaction of MTX with the AOT headgroup in confined environment RM enhanced the stability of MTX without affecting the molecular integrity at room temperature. Chemical stability of MTX in MTX-RM (W0 = 5) is significantly higher (∼97%) at room temperature for the study period of 1 year than in MTX-RM (W0 = 15) (∼72%). Interaction of MTX with the AOT headgroup is also visualized by a high-resolution transmission electron microscope and is in correlation with FT-IR data of MTX-RM. The skin fluxes of MTX are 15.1, 19.75, and 22.75 times higher at water content (W0) of 5, 10, and 15, respectively, in MTX-RM in comparison to aqueous solution of MTX. The enhanced amounts of the MTX were detected using CLSM in hair follicles, sweat glands, and epidermis layer of the skin. Merging of T2, T3, and T4 thermal peaks in one broad peak in treated skin endothermograph shows that carrier MTX-RM affects the lipid as well protein structure of the treated skin. ATR data of treated skin showed an increase in the intensity of the carbonyl peak at 1750 cm-1 (lipid), shifting of the amide II peaks, and separation of peaks in the range of 1060 to 1000 cm-1 (vibration mode of -CH2OH, C-O stretching, and C-OH bending peak of the carbohydrate) in comparison to control skin, which indicates that MTX-RM interacts with glycolipid and glycoprotein through carbohydrate hydroxy groups.
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Affiliation(s)
- Mohammad Changez
- College
of Health Science, University of Buraimi, Al Buraimi 512, Oman
| | - Mohammad Faiyaz Anwar
- Department
of Microbiology, All Indian Institute of
Medical Sciences AIIMS, New Delhi 110608, India
| | - Hilal Alrahbi
- College
of Health Science, University of Buraimi, Al Buraimi 512, Oman
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5
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Al Barashdi MAS, Ali A, McMullin MF, Mills K. CD45 inhibition in myeloid leukaemia cells sensitizes cellular responsiveness to chemotherapy. Ann Hematol 2024; 103:73-88. [PMID: 37917373 PMCID: PMC10761371 DOI: 10.1007/s00277-023-05520-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 10/24/2023] [Indexed: 11/04/2023]
Abstract
Myeloid malignancies are a group of blood disorders characterized by the proliferation of one or more haematopoietic myeloid cell lineages, predominantly in the bone marrow, and are often caused by aberrant protein tyrosine kinase activity. The protein tyrosine phosphatase CD45 is a trans-membrane molecule expressed on all haemopoietic blood cells except that of platelets and red cells. CD45 regulates various cellular physiological processes including proliferation, apoptosis, and lymphocyte activation. However, its role in chemotherapy response is still unknown; therefore, the aim of this study was to investigate the role of CD45 in myeloid malignancies in terms of cellular growth, apoptosis, and response to chemotherapy. The expression of CD45 on myeloid leukaemia primary cells and cell lines was heterogeneous with HEL and OCI-AML3 cells showing the highest level. Inhibition of CD45 resulted in increased cellular sensitivity to cytarabine and ruxolitinib, the two main therapies for AML and MPN. Bioinformatics analysis identified genes whose expression was correlated with CD45 expression such as JAK2, ACTR2, THAP3 Serglycin, and PBX-1 genes, as well as licensed drugs (alendronate, allopurinol, and balsalazide), which could be repurposed as CD45 inhibitors which effectively increases sensitivity to cytarabine and ruxolitinib at low doses. Therefore, CD45 inhibition could be explored as a potential therapeutic partner for treatment of myeloid malignancies in combination with chemotherapy such as cytarabine especially for elderly patients and those showing chemotherapy resistance.
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Affiliation(s)
- Maryam Ahmed S Al Barashdi
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, Northern Ireland, UK
| | - Ahlam Ali
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, Northern Ireland, UK
| | - Mary Frances McMullin
- Haematology Department, C-Floor Tower Block, Belfast City Hospital, Belfast, Northern Ireland, UK
| | - Ken Mills
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, Northern Ireland, UK.
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6
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Al Abri M, Alfoudari A, Mohammad Z, Almathen F, Al-Marzooqi W, Al-Hajri S, Al-Amri M, Bahbahani H. Assessing genetic diversity and defining signatures of positive selection on the genome of dromedary camels from the southeast of the Arabian Peninsula. Front Vet Sci 2023; 10:1296610. [PMID: 38098998 PMCID: PMC10720651 DOI: 10.3389/fvets.2023.1296610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 11/17/2023] [Indexed: 12/17/2023] Open
Abstract
Dromedary camels (Camelus dromedarius) are members of the Camelini tribe within the Camelidae family. They are distributed throughout North Africa, the Arabian Peninsula and Southeast Asia. This domestic species is characterized by its superior adaptability to the harsh desert environment. In this study, whole autosomal data of 29 dromedary samples from the Southeast Arabian Peninsula in Oman; 10 from Muscat, 14 from Al-Batinah, and 5 from Al-Sharqiya, were investigated to assess their genetic relationship and to define candidate signatures of positive selection. A minimal genetic distinction that separates Muscat dromedaries from the other two populations was observed, with a degree of genetic admixture between them. Using the de-correlated composite of multiple signals (DCMS) approach, a total of 47 candidate regions within the autosomes of these dromedary populations were defined with signatures of positive selection. These candidate regions harbor a total of 154 genes that are mainly associated with functional categories related to immune response, lipid metabolism and energy expenditure, optical and auditory functions, and long-term memory. Different functional genomic variants were called on the candidate regions and respective genes that warrant further investigation to find possible association with the different favorable phenotypes in dromedaries. The output of this study paves the way for further research efforts aimed at defining markers for use in genomic breeding programs, with the goal of conserving the genetic diversity of the species and enhancing its productivity.
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Affiliation(s)
- Mohammad Al Abri
- Department of Animal and Veterinary Sciences, Sultan Qaboos University, Muscat, Oman
| | - Ahmad Alfoudari
- Department of Biological Sciences, Faculty of Science, Kuwait University, Safat, Kuwait
| | - Zainab Mohammad
- Department of Biological Sciences, Faculty of Science, Kuwait University, Safat, Kuwait
| | - Faisal Almathen
- Department of Veterinary Public Health and Animal Husbandry, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
- Camel Research Center, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Waleed Al-Marzooqi
- Department of Animal and Veterinary Sciences, Sultan Qaboos University, Muscat, Oman
| | - Salim Al-Hajri
- Laboratories and Research Administration, Directorate General of Veterinary Services, Royal Court Affairs, Muscat, Oman
| | - Mahmood Al-Amri
- Laboratories and Research Administration, Directorate General of Veterinary Services, Royal Court Affairs, Muscat, Oman
| | - Hussain Bahbahani
- Department of Biological Sciences, Faculty of Science, Kuwait University, Safat, Kuwait
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7
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Khalaf MA, Shehata AM. Trust in information sources as a moderator of the impact of COVID-19 anxiety and exposure to information on conspiracy thinking and misinformation beliefs: a multilevel study. BMC Psychol 2023; 11:375. [PMID: 37936245 PMCID: PMC10631015 DOI: 10.1186/s40359-023-01425-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 11/01/2023] [Indexed: 11/09/2023] Open
Abstract
This study investigates the intricate relationship between exposure to information sources, trust in these sources, conspiracy and misinformation beliefs, and COVID-19 anxiety among 509 Omani citizens aged 11 to 50, representing 11 governorates. Employing structural equation modeling, we not only examine these associations but also explore how trust and COVID-19 anxiety act as moderating variables in this context. Additionally, we delve into demographic factors such as age group, educational level, gender, and place of residence (governorate) to discern potential variations.Our findings reveal that trust in health experts is inversely related to belief in conspiracy theories, while trust in health experts negatively correlates with exposure to conspiracy and misinformation. Intriguingly, trust in health experts exhibits divergent effects across governorates: it diminishes conspiracy and misinformation beliefs in some regions but not in others. Exposure to personal contacts and digital media, on the other hand, is associated with heightened beliefs in misinformation and conspiracy theories, respectively, in select governorates. These distinctions may be attributed to proximity to Muscat, the capital city of Oman, where various media outlets and policy-making institutions are situated. Furthermore, lower educational attainment is linked to greater belief in conspiracy and misinformation. Females reported higher levels of conspiracy theory beliefs and COVID-19 anxiety while no significant differences were detected in misinformation beliefs.This study sheds light on the intricate dynamics of misinformation and conspiracy theories in the context of COVID-19 in Oman, highlighting the pivotal roles of trust and COVID-19 anxiety as moderating factors. These findings offer valuable insights into understanding and addressing the spread of misinformation and conspiracy theories during a public health crisis.
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Thiebaut AM, Louet ER, Ianszen M, Guichard MJ, Hanley DF, Gaudin C, Parcq J. O2L-001, an innovative thrombolytic to evacuate intracerebral haematoma. Brain 2023; 146:4690-4701. [PMID: 37450572 PMCID: PMC10629768 DOI: 10.1093/brain/awad237] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 05/31/2023] [Accepted: 06/23/2023] [Indexed: 07/18/2023] Open
Abstract
Intracerebral haemorrhage is an unmet medical need affecting more than 3 million people worldwide every year and leading to the formation of an intracerebral haematoma. Updated guidelines (2022) for the management of intracerebral haemorrhage patients recognize that minimally invasive approaches for the evacuation of supratentorial intracerebral haemorrhage have demonstrated reductions in mortality compared with medical management alone. However, improvement of functional outcome with a procedure involving thrombolytic therapy was neutral in the last large phase 3 clinical trial and requires a more effective and safer thrombolytic agent than those currently available. Here, we demonstrate that O2L-001 allows for the extended release of W253R/R275S recombinant tissue-type plasminogen activator (rtPA). A new rtPA variant, called optimized tPA (OptPA), offers improved efficacy for haematoma evacuation as well as improved safety. OptPA was produced in a Chinese hamster ovary cell line before purification, nanoprecipitation using the NANOp2Lysis® technological platform followed by suspension in a solution of 17% poloxamer 407 to obtain O2L-001. Plasmin generation assays were performed to demonstrate O2L-001 safety. Ex vivo haematoma models using human blood were used to demonstrate O2L-001 thrombolysis properties and efficacy. For the best translational significance, a clinical sized haematoma was used to ensure catheter placement and to allow administration of the thrombolytic agent into the core of the haematoma via a minimally invasive procedure. The capacity of OptPA to convert plasminogen into plasmin is strongly decreased compared to rtPA, thereby reducing potential bleeding events. However, a clot lysis assay showed that OptPA had the same fibrinolytic activity as rtPA. We demonstrated that long-term exposure to a thrombolytic agent was essential to achieve high thrombolysis efficacy. Indeed, 24 h continuous exposure to 0.1 µg/ml rtPA had similar efficacy than repeated short exposure to 30 µg/ml rtPA. This finding led to the development of O2L-001, allowing the extended release of OptPA in the first 6 h following injection. An ex vivo model using human blood was used to demonstrate O2L-001 efficacy. Interestingly, unlike rtPA, O2L-001 was able to induce the complete lysis of the 5 ml haematoma. In clinical sized haematomas (obtained from 30 ml of human blood), a single injection of O2L-001 at 1 mg/ml into the core of the haematoma led to a 44% increase in thrombolysis compared to rtPA. Taken together, these results demonstrate that O2L-001 provides new hope for haematoma evacuation and the treatment of patients with intracerebral haemorrhage.
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Affiliation(s)
| | - Estelle R Louet
- Op2Lysis SAS, GIP Cyceron, 14000 Caen, France
- Normandie Univ, UNICAEN, INSERM UMR-S U1237, Physiopathology and Imaging of Neurological Disorders (PhIND), GIP Cyceron, Institut Blood and Brain @ Caen-Normandie (BB@C), 14000 Caen, France
| | | | | | - Daniel F Hanley
- The Johns Hopkins Medical Institutions, BIOS, Baltimore, MD 21202, USA
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Mahmoud MS, Al-Aufi R, Al-Saidi A, Al-Samahi S, Al-Bulushi R, Rajan G, Abdelmouleh M, Jedidi I. Effect of compression molding of CaCO 3 powder on the kinetics of CO 2 capture towards sustainable CO 2 capture and sequestration cycle. Environ Sci Pollut Res Int 2023; 30:110981-110994. [PMID: 37798519 DOI: 10.1007/s11356-023-30094-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 09/22/2023] [Indexed: 10/07/2023]
Abstract
Reducing CO2 emissions from industrial sectors and motor vehicles is currently receiving much attention. There are different strategies for CO2 capture, one of which is using calcium oxide (CaO). In our proposed carbon dioxide cycle, limestone is first calcined to get CaO, which is then used to capture CO2 by converting it to CaCO3. Next, the released CO2 could be converted to different organic matter by different sequestration techniques. For this purpose, CaCO3 discs have been prepared by compression molding to investigate the effect of sintering temperature on the mechanical and chemical properties of CaO carbonation reaction. The aim of this work is to fill the knowledge gap for the effect of the contact profile between CO2 gas and CaO disc, particularly the effect of reducing the void fraction of CaO on the rate of carbonation reaction. It was found that the flexural strength of the CaO discs was influenced by several factors, such as the calcination temperature, duration of calcination, and pressing pressure. The carbonation step indicated that both CO2 and H2O are reacting with CaO simultaneously and progressively, with the progressive reaction of H2O and CO2 being a favorable route. The carbonation process happens as a surface reaction-controlled process followed by a slower internal diffusion-controlled process. Additionally, a kinetic study of the competing reactions indicated that two factors are controlling the process: diffusion of gases through the pores and then the reaction rate. Furthermore, our data showed that the CO2 uptake rate was 1352.34 mg/g CaO, indicating that 566.34 mg of CO2 was adsorbed inside the pores of the CaO disc. Based on these results, we propose a new mechanism of the sequence of the competing reactions. In summary, the CaO discs revealed a significant removal of CO2 from stack gases, which will be suitable for removing CO2 from exhaust gases generated by industrial processes and other sources of emissions such as vehicles and ships.
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Affiliation(s)
- Mohamed S Mahmoud
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman.
- Faculty of Engineering, Chemical Engineering Department, Minia University, El Minia, 61516, Egypt.
| | - Rahma Al-Aufi
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman
| | - Awsaf Al-Saidi
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman
| | - Siham Al-Samahi
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman
| | - Rawan Al-Bulushi
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman
| | - Govinda Rajan
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman
| | - Makki Abdelmouleh
- Laboratory of Materials Science and Environment (LMSE), Faculty of Science of Sfax, University of Sfax, 4,5 Km SoukraBlvd, 3018, Sfax, Tunisia
| | - Ilyes Jedidi
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman
- Laboratory of Materials Science and Environment (LMSE), Faculty of Science of Sfax, University of Sfax, 4,5 Km SoukraBlvd, 3018, Sfax, Tunisia
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Al-Balushi RA, Haque A, Saeed M, Al-Harthy T, Al-Hinaai M, Al-Hashmi S. Unlocking the Anticancer Potential of Frankincense Essential Oils (FEOs) Through Nanotechnology: A Review. Mol Biotechnol 2023:10.1007/s12033-023-00918-5. [PMID: 37914864 DOI: 10.1007/s12033-023-00918-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 09/26/2023] [Indexed: 11/03/2023]
Abstract
Cancer is a group of heterogeneous diseases that occur when cells in the body proliferate and divide uncontrollably. As the current treatment modalities have pros and cons, the discovery of new chemotherapeutic agents with the least side effects is one of the most investigated research areas. In this context, plant-based natural products are a rich source of drugs and have served humanity for ages. Frankincense essential oils (FEOs) are among the most promising plant-based oils in Gulf countries. In addition to their high cultural value, FEOs are also famous for their engaging biological activities, including anti-cancerous. However, the practical application of FEOs is often hindered/by their low water solubility, limited bioavailability, high volatility, and sensitivity toward heat, humidity, light, or oxygen. Thus, a significant demand for technological advancement would improve their ability to target particular cells and tissues. Nanotechnology emerged as an exciting approach in this context. Through suitable nano-formulation (functionalization or encapsulation into a nanostructure), issues arising due to solubility, targeting capability, and delivery can be controlled.
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Affiliation(s)
- Rayya A Al-Balushi
- Department of Basic and Applied Sciences, College of Applied and Health Sciences, A'Sharqiyah University, P.O. Box 42, Ibra, 400, Sultanate of Oman.
| | - Ashanul Haque
- Department of Chemistry, College of Science, University of Hail, Hail, Kingdom of Saudi Arabia.
| | - Mohd Saeed
- Department of Biology, College of Science, University of Hail, Hail, Kingdom of Saudi Arabia
| | - Thuraya Al-Harthy
- Department of Basic and Applied Sciences, College of Applied and Health Sciences, A'Sharqiyah University, P.O. Box 42, Ibra, 400, Sultanate of Oman
| | - Mohammed Al-Hinaai
- Department of Basic and Applied Sciences, College of Applied and Health Sciences, A'Sharqiyah University, P.O. Box 42, Ibra, 400, Sultanate of Oman
| | - Salim Al-Hashmi
- Department of Basic and Applied Sciences, College of Applied and Health Sciences, A'Sharqiyah University, P.O. Box 42, Ibra, 400, Sultanate of Oman
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11
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Nujoom R, Mohammed A, Diabat A. Manufacturing system reconfiguration towards sustainable production: a novel hybrid optimization methodology. Environ Sci Pollut Res Int 2023; 30:110687-110714. [PMID: 37789222 DOI: 10.1007/s11356-023-29233-x] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/04/2023] [Indexed: 10/05/2023]
Abstract
Developing a sustainable manufacturing system is a progressively challenging issue as governments across the world have been enforcing increasingly severe regulations by promoting the reduction of environmental waste for manufacturing and energy-saving production activities. Thus, there is a need for developing a sustainable manufacturing system that can be fully examined by incorporating ecological aspects (e.g., consumed energy) for related operations of a manufacturing system using computer-based discrete event simulation tools. In this study, a combined framework of a novel hybrid fuzzy multi-objective optimization and discrete event simulation approach is presented. We combine ecological and economic data and optimization techniques that are aimed at minimizing economic and ecological objectives in a manufacturing system at an early design phase. Hence, the fuzzy multi-objective optimization model is formulated by incorporating economic and ecological parameters. Again, the discrete event simulation model is established based on a comprehensive performance evaluation of the production system. This study also supports design decisions in determining optimum machine numbers, lighting, and cooling equipment required for the production processes within the sustainable manufacturing in conjunction with the most effective level of material flows. In addition, an integrated Decision-Making Trial and Evaluation Laboratory (DEMATEL)-epsilon constraint approach is applied to handle the multiple-objective optimization problem towards a set of trade-offs among the optimization objectives. A real-life application is carried out for investigating the applicability of the created hybrid framework. The findings of this study demonstrate that this framework is useful as a decision-making tool since it can develop a sustainable manufacturing system design considering an optimal solution associated with amounts of energy usage and CO2 emissions under economic constraints.
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Affiliation(s)
- Reda Nujoom
- School of Engineering, University of Portsmouth, Portsmouth, UK
- Directorate of The Electromechanical Management Works, Ministry of Logistic and Transport Services, Wadi Alhyah street, 9349, 2358, Riyadh, Kingdom of Saudi Arabia
| | - Ahmed Mohammed
- Faculty of Transport & Logistics, Muscat University, Building 142, Al Ghubra North, Muscat, Oman.
- Department of Management, Birmingham Business School, University of Birmingham, Dubai International Academic City, Dubai, P.O. Box 341799, United Arab Emirates.
| | - Ali Diabat
- Division of Engineering, New York University Abu Dhabi, Saadiyat Island, 129188, Abu Dhabi, United Arab Emirates
- Department of Civil and Urban Engineering, Tandon School of Engineering, New York University, Brooklyn, NY, 11201, USA
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12
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Pesce G, Artaud F, Roze E, Degaey I, Portugal B, Nguyen TTH, Fournier A, Boutron-Ruault MC, Severi G, Elbaz A, Canonico M. Reproductive characteristics, use of exogenous hormones and Parkinson disease in women from the E3N study. Brain 2023; 146:2535-2546. [PMID: 36415953 PMCID: PMC10232244 DOI: 10.1093/brain/awac440] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 07/13/2022] [Revised: 10/26/2022] [Accepted: 11/08/2022] [Indexed: 09/19/2023] Open
Abstract
Despite experimental studies suggesting a disease-modifying role of oestrogens, results from epidemiological studies on the relation of reproductive characteristics and hormonal exposures with Parkinson disease in women are conflicting. We used the data from the E3N cohort study including 98 068 women aged 40-65 years in 1990 followed until 2018. Parkinson disease was ascertained using a validation process based on drug claim databases and medical records. Reproductive characteristics and hormonal exposures were self-reported (11 questionnaires). Associations of exposures with Parkinson disease incidence were investigated using time-varying Cox proportional hazards regression with a 5-year exposure lag and age as the timescale adjusted for confounders. We identified 1165 incident Parkinson disease cases during a mean follow-up of 22.0 years (incidence rate = 54.7 per 100 000 person-years). Parkinson disease incidence was higher in women with early (<12 years, HR = 1.21, 95% CI = 1.04-1.40) or late age at menarche (≥14 years, HR = 1.18, 95% CI = 1.03-1.35) than in women with menarche at 12-13 years. Nulliparity was not associated with Parkinson disease, but Parkinson disease incidence increased with the number of children in parous women (P-trend = 0.009). Women with artificial (surgical, iatrogenic) menopause were at greater risk than women with natural menopause (HR = 1.28, 95% CI = 1.09-1.47), especially when artificial menopause occurred at an early age (≤45.0 years). Postmenopausal hormone therapy tended to mitigate greater risk associated with artificial or early menopause (≤45.0 years). While fertility treatments were not associated with Parkinson disease overall, ever users of clomiphene were at greater Parkinson disease risk than never users (HR = 1.81, 95% CI = 1.14-2.88). Other exposures (breastfeeding, oral contraceptives) were not associated with Parkinson disease. Our findings suggest that early and late age at menarche, higher parity, and artificial menopause, in particular at an early age, are associated with increased Parkinson disease incidence in women. In addition, there was some evidence that use of exogenous hormones may increase (fertility treatments) or decrease (postmenopausal hormone therapy) Parkinson disease incidence. These findings support the hypothesis that hormonal exposures play a role in the susceptibility to neurodegenerative diseases. If confirmed, they could help to identify subgroups at high risk for Parkinson disease.
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Affiliation(s)
- Giancarlo Pesce
- Université Paris-Saclay, UVSQ, Gustave Roussy, Inserm, Équipe « Exposome, hérédité, cancer et santé », CESP UMR 1018, Villejuif, F-94807, France
| | - Fanny Artaud
- Université Paris-Saclay, UVSQ, Gustave Roussy, Inserm, Équipe « Exposome, hérédité, cancer et santé », CESP UMR 1018, Villejuif, F-94807, France
| | - Emmanuel Roze
- AP-HP, Hôpital Pitié-Salpêtrière, Département de Neurologie, Paris, F-75013, France
- Sorbonne Université, France; INSERM U1127, CNRS 7225, Institut du Cerveau, Paris, F-75013, France
| | - Isabelle Degaey
- Université Paris-Saclay, UVSQ, Gustave Roussy, Inserm, Équipe « Exposome, hérédité, cancer et santé », CESP UMR 1018, Villejuif, F-94807, France
| | - Berta Portugal
- Université Paris-Saclay, UVSQ, Gustave Roussy, Inserm, Équipe « Exposome, hérédité, cancer et santé », CESP UMR 1018, Villejuif, F-94807, France
| | - Thi Thu Ha Nguyen
- Université Paris-Saclay, UVSQ, Gustave Roussy, Inserm, Équipe « Exposome, hérédité, cancer et santé », CESP UMR 1018, Villejuif, F-94807, France
| | - Agnès Fournier
- Université Paris-Saclay, UVSQ, Gustave Roussy, Inserm, Équipe « Exposome, hérédité, cancer et santé », CESP UMR 1018, Villejuif, F-94807, France
| | - Marie-Christine Boutron-Ruault
- Université Paris-Saclay, UVSQ, Gustave Roussy, Inserm, Équipe « Exposome, hérédité, cancer et santé », CESP UMR 1018, Villejuif, F-94807, France
| | - Gianluca Severi
- Université Paris-Saclay, UVSQ, Gustave Roussy, Inserm, Équipe « Exposome, hérédité, cancer et santé », CESP UMR 1018, Villejuif, F-94807, France
- Department of Statistics, Computer Science, Applications "G.Parenti" (DISIA), University of Florence, 50134, Italy
| | - Alexis Elbaz
- Université Paris-Saclay, UVSQ, Gustave Roussy, Inserm, Équipe « Exposome, hérédité, cancer et santé », CESP UMR 1018, Villejuif, F-94807, France
| | - Marianne Canonico
- Université Paris-Saclay, UVSQ, Gustave Roussy, Inserm, Équipe « Exposome, hérédité, cancer et santé », CESP UMR 1018, Villejuif, F-94807, France
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13
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Naikoo GA, Bano M, Arshad F, Hassan IU, BaOmar F, Alfagih IM, Tambuwala MM. Non-enzymatic glucose sensors composed of trimetallic CuO/Ag/NiO based composite materials. Sci Rep 2023; 13:6210. [PMID: 37069170 PMCID: PMC10110615 DOI: 10.1038/s41598-023-32719-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/31/2023] [Indexed: 04/19/2023] Open
Abstract
The escalating risk of diabetes and its consequential impact on cardiac, vascular, ocular, renal, and neural systems globally have compelled researchers to devise cost-effective, ultrasensitive, and reliable electrochemical glucose sensors for the early diagnosis of diabetes. Herein, we utilized advanced composite materials based on nanoporous CuO, CuO/Ag, and CuO/Ag/NiO for glucose detection. The crystalline structure and surface morphology of the synthesized materials were ascertained via powder X-ray diffraction (P-XRD), energy dispersive X-ray (EDX) spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis. The electro-catalytic properties of the manufactured electrode materials for glucose electro-oxidation in alkaline conditions were probed using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. Notably, the CuO/Ag/NiO electrode material exhibited exceptional performance as a non-enzymatic glucose sensor, displaying a linear range of 0.001-5.50 mM, an ultrahigh sensitivity of 2895.3 μA mM-1 cm-2, and a low detection limit of 0.1 μM. These results suggest that nanoporous CuO/Ag/NiO-based composite materials are a promising candidate for early diagnosis of hyperglycemia and treatment of diabetes. Furthermore, non-enzymatic glucose sensors may pave the way for novel glucometer markets.
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Affiliation(s)
- Gowhar A Naikoo
- Department of Mathematics & Sciences, College of Arts & Applied Sciences, Dhofar University, 211, Salalah, Oman.
| | - Mustri Bano
- Department of Mathematics & Sciences, College of Arts & Applied Sciences, Dhofar University, 211, Salalah, Oman.
| | - Fareeha Arshad
- Department of Mathematics & Sciences, College of Arts & Applied Sciences, Dhofar University, 211, Salalah, Oman
| | - Israr U Hassan
- College of Engineering, Dhofar University, 211, Salalah, Oman
| | - Fatima BaOmar
- Department of Mathematics & Sciences, College of Arts & Applied Sciences, Dhofar University, 211, Salalah, Oman
| | - Iman M Alfagih
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 4545, Saudi Arabia
| | - Murtaza M Tambuwala
- Lincoln Medical School - Universities of Nottingham and Lincoln, University of Lincoln, Brayford Pool, Lincoln, LN6 7TS, Lincolnshire, UK.
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14
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Zidi M, Denis F, Klai K, Chénais B, Caruso A, Djebbi S, Mezghani M, Casse N. Genome-wide characterization of Mariner-like transposons and their derived MITEs in the Whitefly Bemisia tabaci (Hemiptera: Aleyrodidae). G3 (Bethesda) 2021; 11:jkab287. [PMID: 34849769 PMCID: PMC8664452 DOI: 10.1093/g3journal/jkab287] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 07/28/2021] [Indexed: 12/02/2022]
Abstract
The whitefly, Bemisia tabaci is a hemipteran pest of vegetable crops vectoring a broad category of viruses. Currently, this insect pest showed a high adaptability and resistance to almost all the chemical compounds commonly used for its control. In many cases, transposable elements (TEs) contributed to the evolution of host genomic plasticity. This study focuses on the annotation of Mariner-like elements (MLEs) and their derived Miniature Inverted repeat Transposable Elements (MITEs) in the genome of B. tabaci. Two full-length MLEs belonging to mauritiana and irritans subfamilies were detected and named Btmar1.1 and Btmar2.1, respectively. Additionally, 548 defective MLE sequences clustering mainly into 19 different Mariner lineages of mauritiana and irritans subfamilies were identified. Each subfamily showed a significant variation in MLE copy number and size. Furthermore, 71 MITEs were identified as MLEs derivatives that could be mobilized via the potentially active transposases encoded by Btmar 1.1 and Btmar2.1. The vast majority of sequences detected in the whitefly genome present unusual terminal inverted repeats (TIRs) of up to 400 bp in length. However, some exceptions are sequences without TIRs. This feature of the MLEs and their derived MITEs in B. tabaci genome that distinguishes them from all the other MLEs so far described in insects, which have TIRs size ranging from 20 to 40 bp. Overall, our study provides an overview of MLEs, especially those with large TIRs, and their related MITEs, as well as diversity of their families, which will provide a better understanding of the evolution and adaptation of the whitefly genome.
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Affiliation(s)
- Marwa Zidi
- Laboratory of Biochemistry and Biotechnology (LR01ES05), Faculty of Sciences of Tunis, University of Tunis El Manar, 2092 Tunis, Tunisia
- Biologie des Organismes, Stress, Santé, Environnement, Le Mans Université, F-72085 Le Mans, France
| | - Françoise Denis
- Biologie des Organismes, Stress, Santé, Environnement, Le Mans Université, F-72085 Le Mans, France
- Laboratoire BOREA MNHN, CNRS FRE 2030, SU, IRD 207, UCN, UA, 75231 Paris, France
| | - Khouloud Klai
- Laboratory of Biochemistry and Biotechnology (LR01ES05), Faculty of Sciences of Tunis, University of Tunis El Manar, 2092 Tunis, Tunisia
- Biologie des Organismes, Stress, Santé, Environnement, Le Mans Université, F-72085 Le Mans, France
| | - Benoît Chénais
- Biologie des Organismes, Stress, Santé, Environnement, Le Mans Université, F-72085 Le Mans, France
| | - Aurore Caruso
- Biologie des Organismes, Stress, Santé, Environnement, Le Mans Université, F-72085 Le Mans, France
| | - Salma Djebbi
- Laboratory of Biochemistry and Biotechnology (LR01ES05), Faculty of Sciences of Tunis, University of Tunis El Manar, 2092 Tunis, Tunisia
| | - Maha Mezghani
- Laboratory of Biochemistry and Biotechnology (LR01ES05), Faculty of Sciences of Tunis, University of Tunis El Manar, 2092 Tunis, Tunisia
| | - Nathalie Casse
- Biologie des Organismes, Stress, Santé, Environnement, Le Mans Université, F-72085 Le Mans, France
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15
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Al Za’abi M, Ali H, Ali BH. Effect of flaxseed on systemic inflammation and oxidative stress in diabetic rats with or without chronic kidney disease. PLoS One 2021; 16:e0258800. [PMID: 34665824 PMCID: PMC8525749 DOI: 10.1371/journal.pone.0258800] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 10/05/2021] [Indexed: 12/27/2022] Open
Abstract
Background Diabetes mellitus (DM) and chronic kidney disease (CKD) are common causes of morbidity and mortality. Flaxseed contains several bioactive compounds that have been shown to possess anti-inflammatory and antioxidative properties. The aim of the present study was to investigate the possible effect of flaxseed in diabetic rats with adenine–induced CKD. Methods Male Wister rats (n = 48) were randomly divided into seven equal groups and treated for 33 consecutive days as follows: G1: control. G2 adenine, G3: streptozotocin (STZ), G4: flaxseed, G5: adenine+flaxseed, G6: STZ+flaxseed, G7: adenine+STZ+flaxseed). DM or CKD were experimentally induced by a single intraperitoneal injection of streptozotocin (STZ) or by adenine via oral gavage, respectively. Results Rats fed adenine alone exhibited several changes including decreased body weight, increased food and water intake and urine output, increased urinary albumin/creatinine ratio. They also showed an increase in plasma urea and, creatinine, indoxyl sulfate, neutrophil gelatinase-associated lipocalin and cystatin C, and a decrease in renalase activity. These were associated with significant changes in inflammatory and oxidative biomarkers, e.g., increase in 8-isoprostane, 8 -hydroxy -2-deoxy guanosine and decrease in antioxidant enzymes, as well as increase in interleukins 1β and 6, and NF-κB, and a decrease in interlukin-10. Histopathologically, there was increased tubular necrosis and fibrosis. Concomitant administration of adenine and STZ further worsened the renal damage induced by adenine alone. Flaxseed significantly ameliorated the changes caused by adenine and STZ, given either singly or in combination. Conclusion These findings suggest that flaxseed is a potential therapeutic agent in attenuating the progression of CKD in diabetes.
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Affiliation(s)
- Mohammed Al Za’abi
- Department of Pharmacology and Clinical Pharmacy, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
- * E-mail:
| | - Haytham Ali
- Department of Animal and Veterinary Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Badreldin H. Ali
- Department of Pharmacology and Clinical Pharmacy, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
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16
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Pennarun G, Picotto J, Etourneaud L, Redavid AR, Certain A, Gauthier LR, Fontanilla-Ramirez P, Busso D, Chabance-Okumura C, Thézé B, Boussin FD, Bertrand P. Increase in lamin B1 promotes telomere instability by disrupting the shelterin complex in human cells. Nucleic Acids Res 2021; 49:9886-9905. [PMID: 34469544 PMCID: PMC8464066 DOI: 10.1093/nar/gkab761] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 08/04/2021] [Accepted: 08/31/2021] [Indexed: 12/19/2022] Open
Abstract
Telomere maintenance is essential to preserve genomic stability and involves telomere-specific proteins, DNA replication and repair proteins. Lamins are key components of the nuclear envelope and play numerous roles, including maintenance of the nuclear integrity, regulation of transcription, and DNA replication. Elevated levels of lamin B1, one of the major lamins, have been observed in some human pathologies and several cancers. Yet, the effect of lamin B1 dysregulation on telomere maintenance remains unknown. Here, we unveil that lamin B1 overexpression drives telomere instability through the disruption of the shelterin complex. Indeed, lamin B1 dysregulation leads to an increase in telomere dysfunction-induced foci, telomeric fusions and telomere losses in human cells. Telomere aberrations were preceded by mislocalizations of TRF2 and its binding partner RAP1. Interestingly, we identified new interactions between lamin B1 and these shelterin proteins, which are strongly enhanced at the nuclear periphery upon lamin B1 overexpression. Importantly, chromosomal fusions induced by lamin B1 in excess were rescued by TRF2 overexpression. These data indicated that lamin B1 overexpression triggers telomere instability through a mislocalization of TRF2. Altogether our results point to lamin B1 as a new interacting partner of TRF2, that is involved in telomere stability.
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Affiliation(s)
- Gaëlle Pennarun
- Université de Paris and Université Paris-Saclay, INSERM, iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265 Fontenay-aux-Roses, France
- “DNA Repair and Ageing” Team, iRCM/IBFJ, DRF, CEA, Fontenay-aux-Roses, France
| | - Julien Picotto
- Université de Paris and Université Paris-Saclay, INSERM, iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265 Fontenay-aux-Roses, France
- “DNA Repair and Ageing” Team, iRCM/IBFJ, DRF, CEA, Fontenay-aux-Roses, France
| | - Laure Etourneaud
- Université de Paris and Université Paris-Saclay, INSERM, iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265 Fontenay-aux-Roses, France
- “DNA Repair and Ageing” Team, iRCM/IBFJ, DRF, CEA, Fontenay-aux-Roses, France
| | - Anna-Rita Redavid
- Université de Paris and Université Paris-Saclay, INSERM, iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265 Fontenay-aux-Roses, France
- “DNA Repair and Ageing” Team, iRCM/IBFJ, DRF, CEA, Fontenay-aux-Roses, France
| | - Anaïs Certain
- Université de Paris and Université Paris-Saclay, INSERM, iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265 Fontenay-aux-Roses, France
- “DNA Repair and Ageing” Team, iRCM/IBFJ, DRF, CEA, Fontenay-aux-Roses, France
| | - Laurent R Gauthier
- Université de Paris and Université Paris-Saclay, INSERM, iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265 Fontenay-aux-Roses, France
- “Radiopathology” Team, iRCM/IBFJ, DRF, CEA, Fontenay-aux-Roses, France
| | - Paula Fontanilla-Ramirez
- Université de Paris and Université Paris-Saclay, INSERM, iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265 Fontenay-aux-Roses, France
- “DNA Repair and Ageing” Team, iRCM/IBFJ, DRF, CEA, Fontenay-aux-Roses, France
| | - Didier Busso
- Université de Paris and Université Paris-Saclay, INSERM, iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265 Fontenay-aux-Roses, France
- Genetic Engineering and Expression Platform (CIGEX), iRCM, DRF, CEA, Fontenay-aux-Roses, France
| | - Caroline Chabance-Okumura
- Université de Paris and Université Paris-Saclay, INSERM, iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265 Fontenay-aux-Roses, France
- “DNA Repair and Ageing” Team, iRCM/IBFJ, DRF, CEA, Fontenay-aux-Roses, France
| | - Benoît Thézé
- Université de Paris and Université Paris-Saclay, INSERM, iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265 Fontenay-aux-Roses, France
- “DNA Repair and Ageing” Team, iRCM/IBFJ, DRF, CEA, Fontenay-aux-Roses, France
| | - François D Boussin
- Université de Paris and Université Paris-Saclay, INSERM, iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265 Fontenay-aux-Roses, France
- “Radiopathology” Team, iRCM/IBFJ, DRF, CEA, Fontenay-aux-Roses, France
| | - Pascale Bertrand
- Université de Paris and Université Paris-Saclay, INSERM, iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265 Fontenay-aux-Roses, France
- “DNA Repair and Ageing” Team, iRCM/IBFJ, DRF, CEA, Fontenay-aux-Roses, France
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