35,689 results match your criteria: "Tunisia; El Manar Medical School-Tunis[Affiliation]"

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

Front Immunol

December 2024

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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The aim of the study was to model lactation curves and assess the physicochemical properties, amino acid, and fatty acid profiles of milk from two Mediterranean donkey populations, Masri (n = 14) and North African (n = 14), using the Wood model. Over a lactation period of 205 ± 12.5 days, North African donkeys produced more milk (188.

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Effect of human amniotic membrane on the consolidation during bone lengthening by distraction: Experimental study in rabbits.

J Orthop Sci

January 2025

Cell Therapy and Experimental Surgery of Musculoskeletal System LR18SP11 Lab, Faculty of Medicine, Sfax, Tunisia; Department of Orthopedics and Traumatology, CHU Habib Bourguiba, Sfax, Tunisia.

Objective: This study aimed to assess the effect of implantation of fresh human amniotic membranes (HAM) on bone consolidation during distraction bone lengthening.

Methods: Ten New Zealand white rabbits were used in this study. For each rabbit, we performed a diaphyseal tibial osteotomy after installing a single-plane distraction external fixator.

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King oyster mushroom Pleurotus eryngii is cultivated worldwide for culinary and to improve human health. However, the potential of some Mediterranean representatives of this species is still not evaluated. This work focuses on the study of polysaccharides from fruiting bodies of two Tunisian strains, P.

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The role of taxation in environmental sustainability in G-20 economies: A double dividend theoretical assessment.

J Environ Manage

January 2025

School of Economics, Beijing Institute of Technology, Beijing, China; GUST Center for Sustainable Development (CSD), Gulf University for Science and Technology, Hawally, Kuwait; University of Economics and Human Science in Warsaw, Warsaw, Poland. Electronic address:

This study analyses the influence of environmental taxes, renewable energy, economic growth, green innovation and financial development on environmental sustainability in G-20 countries from 1990 to 2022. To this end, the Method of Moments Quantile Regression (MMQR) was applied to obtain the reference results, complemented with Fully Modified Ordinary Least Square (FMOLS) and Driscoll-Kraay techniques to perform a comparative analysis. Our results confirm a negative relationship between environmental taxes and sustainability in all quantiles, although this relationship is only significant in the middle and upper quantiles.

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Article Synopsis
  • The study explores the management and diagnosis of Wolf-Parkinson White Syndrome (WPW) and asymptomatic pre-excitation in Africa, highlighting a lack of data in the region.
  • Conducted in 20 centers across 17 African countries, the research involved 541 participants and focused on symptomatology, treatment approaches, and the impact of local health dynamics on care.
  • Results indicated that a vast majority were diagnosed with WPW, with significant regional differences in treatment options and effectiveness, showing that Northern and Southern Africa have more advanced practices compared to other areas.
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Background: Accurate distinction between stroke etiologic subtypes is critical for physicians to provide tailored treatment. The triglyceride-glucose (TyG) index, a marker of insulin resistance, has been associated with stroke risk but its role in distinguishing stroke etiologic subtypes remains unclear. We aimed to assess the TyG index's ability to differentiate cardioembolic (CE) from non-cardioembolic (NCE) strokes.

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Using -rhizobia- interaction networks, we address first the soil invasion success of , and second, we report either -rhizobia partnership should form an isolated module within the symbiosis interaction network. Different indexes were used to determine model invasion success and the network topology. Our results indicated that invasion decreased soil microbial biomass, basal respiration, and enzymatic activities.

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In this study, we aimed to enhance the photocatalytic performance of molybdenum oxide (MoO) thin films by doping with silver (Ag) via a spray pyrolysis technique. The primary objective for silver incorporation was intended to introduce additional energy levels into the band structure of MoO, improving its efficiency. Structural, optical, and photocatalytic properties were analyzed using X-ray diffraction (XRD) and optical spectroscopy.

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