35,698 results match your criteria: "Tunisia; El Manar Medical School-Tunis[Affiliation]"

Recurrent chest pain and palpitations unmasking a rare mediastinal arteriovenous malformation.

ANZ J Surg

January 2025

Department of Cardiac and Thoracic surgery, The Military Hospital of Instruction of Tunis, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia.

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Luminescent materials doped with rare-earth (RE) ions have emerged as powerful tools in thermometry, offering high sensitivity and accuracy. However, challenges remain, particularly in maintaining efficient luminescence at elevated temperatures. This study investigates the thermometric properties of BiVO: Yb/Er (BVO: Er/Yb) nanophosphors synthesized the sol-gel method.

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Background: Asthenozoospermia, characterized by reduced sperm motility, is a common cause of male infertility. Multiple morphological abnormalities of the sperm flagella (MMAF) represent a severe and genetically heterogeneous form of asthenozoospermia. Over 50 genes have been associated, but approximately half of MMAF cases remain unexplained.

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Background: Despite its obvious relevance for clinical practice and research, it is surprising that presently no hope measure is available for use among Arabic-speaking populations, especially the most vulnerable ones who have been going through major humanitarian crises. This paper aimed to provide novel insights into psychometric information on the psychometric properties of an Arabic translation of the Perceived Hope Scale (PHS) in Palestinians living in Gaza who have endured several months of suffering since the war began in October 2023.

Method: This study had a cross-sectional design and applied a quantitative research approach.

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Introduction: The Big Five Inventory (BFI) is a popular measure that evaluates personality on the Big-Five model. Apart from its utilization across cultures, the literature did not reveal any meta-analysis for the reliability of the different versions of the BFI and its translations. The current study carried out a reliability generalization meta-analysis (REGEMA) to establish the reliability of the BFI across cultures and languages.

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Biofilm formation and virulence factor production by Pseudomonas aeruginosa are identified as the main mechanisms of its antibiotic resistance and pathogenicity. In this context, the study of the chemical composition of three Algerian essential oils (EOs) and the screening of their antibacterial, anti-biofilm and virulence factor inhibitory activities enabled us to select the Thyme EO as the best oil to control the P. aeruginosa strain isolated from hospital environments.

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PGM3 insufficiency: a glycosylation disorder causing a notable T cell defect.

Front Immunol

January 2025

Institute for Immunodeficiency, Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany.

Background: Hypomorphic mutations in the () gene cause a glycosylation disorder that leads to immunodeficiency. It is often associated with recurrent infections and atopy. The exact etiology of this condition remains unclear.

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Brown seaweeds are known for their bioactive compounds, particularly sulfated polysaccharides such as fucoidans, which have demonstrated antiviral properties. However, limited studies have focused on the antiviral potential of fucoidans extracted from Mediterranean brown seaweeds. In this study, two brown seaweeds Padina pavonica and Dictyopteris membranacea (Fuc-Pad and Fuc-Dic) were collected from monastir coasts, Tunisia, and a specific extraction protocol was employed to obtain fucoidans.

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The vision transformer (ViT) architecture, with its attention mechanism based on multi-head attention layers, has been widely adopted in various computer-aided diagnosis tasks due to its effectiveness in processing medical image information. ViTs are notably recognized for their complex architecture, which requires high-performance GPUs or CPUs for efficient model training and deployment in real-world medical diagnostic devices. This renders them more intricate than convolutional neural networks (CNNs).

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Purpose: Tick diversity in Algeria has garnered increasing interest due to its implications for animal health and zoonotic diseases. Recent reports of abnormal ulcerative lesions in goats and sheep in the Cheria region of northeastern Algeria have raised concerns about a potential association with tick infestations. The aim of this study is to hypothesize the potential involvement of ticks in these unusual lesions.

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Research protocol for a systematic review and meta-analysis of the effects of music on anxiety and physiological outcomes in patients undergoing bronchoscopy.

PLoS One

January 2025

Pneumology Department, University Hospital Farhat Hached, Research Laboratory LR-Interaction Cœur-Poumons (LR14ES05), Faculty of Medicine of Sousse, University of Sousse, Sousse, Tunisia.

Introduction: Bronchoscopy is a routine clinical examination that can cause discomfort and anxiety in patients. This paper presents a protocol for a systematic review and meta-analysis aiming to assess the effect of music on anxiety and physiological outcomes in patients undergoing bronchoscopy.

Methods: The protocol adhere to Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols guidelines and has been registered in PROSPERO (CRD42024567398).

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Background: Artificial intelligence (AI) predictive models in primary health care have the potential to enhance population health by rapidly and accurately identifying individuals who should receive care and health services. However, these models also carry the risk of perpetuating or amplifying existing biases toward diverse groups. We identified a gap in the current understanding of strategies used to assess and mitigate bias in primary health care algorithms related to individuals' personal or protected attributes.

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This paper introduces a novel methodology for evaluating communication performance in rotating electric machines using Received Signal Strength Indication (RSSI) measurements coupled with artificial intelligence. The proposed approach focuses on assessing the quality of wireless signals in the complex, dynamic environment inside these machines, where factors like reflections, metallic surfaces, and rotational movements can significantly impact communication. RSSI is used as a key parameter to monitor real-time signal behavior, enabling a detailed analysis of communication reliability.

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Genetic Diversity and Relationships Among Tunisian Wild and Cultivated L. Species.

Plants (Basel)

December 2024

LR99ES12, Laboratoire de Génétique Moléculaire, Immunologie et Biotechnologie, Faculté des Sciences de Tunis, Université de Tunis El Manar, Tunis 2092, Tunisia.

Assessing and determining genetic diversity in rose species is a crucial step for conservation efforts, the establishment of a core collection, and the development of new varieties. This study represents the first investigation of genetic diversity among various rose species at different ploidy levels in Tunisia, with the aim of elucidating the genetic structure of the genus. It encompasses both spontaneous and cultivated accessions, featuring local and introduced species recognized for their adaptability, ornamental value, and fragrance.

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The changing epidemiological profile of invasive infections (IIHi) is noted in the post-vaccination era. The aim of this study was to characterize phenotypically and genotypically invasive (Hi) isolates detected in Tunisian pediatric patients. A retrospective study was conducted in the microbiology laboratory of the Children's Hospital of Tunis over ten years (2013-2023).

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In Saudi Arabia, numerous plant species with promising medicinal properties are cultivated, widely traded, and commonly utilized in traditional medicine, including fenugreek (). This study aimed to comprehensively assess the phytochemical composition and antimicrobial potential of the Saudi cultivar of fenugreek using an integrative approach combining in vitro and in silico methodologies. A comprehensive investigation was conducted on the ethanol extract of fenugreek seeds, assessing its antibacterial, antifungal, properties.

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Bisphenol A (BPA) is a commonly synthetic chemical mainly used in producing plastic items. It is an endocrine-disrupting compound that causes irreversible health and environmental damage. Developing a simple method for BPA effective quantitative monitoring is emergently necessary.

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Relationship Between the Structure of the Flavone -Glycosides of Linseed ( L.) and Their Antioxidant Activity.

Molecules

December 2024

UMRT INRAE 1158 BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), Université de Picardie Jules Verne, IUT GB, Avenue des Facultés, Le Bailly, 80025 Amiens, France.

Flavonoids have been documented to have good antioxidant activities in vitro. In recent years, reports on the antioxidant activities of flavone glycosides, a subclass of flavonoids, have attracted great attention. Despite the wealth of information on this subject, the correlation between structure and function is not well understood.

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Carob syrup, a traditional Mediterranean functional beverage obtained from (L.) pods, has been historically valued for its nutritional properties but is currently underutilized. This study compared the prebiotic potential of three handmade carob syrups produced by Tunisian women with commercial benchmarks from Italy, Greece and Cyprus.

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The use of lactic acid bacteria for developing functional foods is increasing for their ability to synthesize beneficial metabolites such as vitamin B (riboflavin, RF) and postbiotic compounds. Here, the spontaneous mutant FS54 B2 was isolated by treatment of the dextran-producing FS54 strain with roseoflavin. FS54 B2 overproduced RF (4.

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Isolation and Characterization of Lytic Phages Infecting Clinical from Tunisia.

Antibiotics (Basel)

December 2024

Biochemistry and Biotechnology Laboratory LR01ES05, Faculty of Sciences of Tunis, University of Tunis El Manar, El Manar II, Tunis 2092, Tunisia.

: is an opportunistic pathogen that causes a wide range of infections worldwide. The emergence and spread of multidrug-resistant clones requires the implementation of novel therapeutics, and phages are a promising approach. : In this study, two phages, KpTDp1 and KpTDp2, were isolated from wastewater samples in Tunisia.

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Background: Cardiovascular diseases are the leading cause of mortality globally. Myocardial infarction (MI), a major type of cardiovascular disease, presents long-term challenges for patients. Recognizing patients' perceived health needs and the factors that influence them is crucial for providing comprehensive care and improving outcomes.

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