2,978 results match your criteria: "University of Tunis el manar[Affiliation]"

Scabiosa artropurperea, a member of the Dipsacaceae family and Scabiosa genus, is renowned for its medicinal properties. In the present study, we investigated the impact of Scabiosa artropurperea aqueous extract (AES) on the in vivo reproductive functions in Queue Fine de l'Ouest ewes, and on in vitro ovine granulosa cells. Ewes were synchronized for 14 days with intra-vagina progesterone (P4) devices (FGA, 20 mg) and divided into four groups receiving daily oral doses of 0, 1, 2, and 4 mg of AES/kg Live Body Weight (LBW), respectively.

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Amyotrophic Lateral Sclerosis(ALS) has traditionally been managed as a neuromuscular disorder. However, recent evidence suggests involvement of non-motor domains. This study aims to evaluate the impact of APOE and MAPT genotypes on the cognitive features of ALS.

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Introduction: Endobronchial metastases (EBMs) are rare, with primary tumours predominantly of breast, renal, and colorectal origin. Bronchoscopy is the diagnostic gold standard, with histological confirmation through immunohistochemical study.

Cases: We presented three cases of EBMs, one secondary to colorectal cancer and two associated with renal tumours.

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The (1,3)-β-D-glucan use for invasive candidiasis diagnosis in non-neutropenic critically ill patients: a prospective cohort study.

Tunis Med

December 2024

University of Tunis El Manar, Faculty of Medicine of Tunis, La Rabta Tertiary Hospital, Intensive Care Medicine Department, 1007, Tunis, Tunisia.

Unlabelled: Introduction Invasive candidiasis (IC) is a widespread infection in intensive care. As culture-based diagnostic techniques take several days before positivity and leaks of sensitivity. (1,3)-β-D-glucan (BDG) was proposed as a mycological criterion for IC diagnosis in selected patients.

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Emerging biosensing platforms based on metal-organic frameworks (MOFs) for detection of exosomes as diagnostic cancer biomarkers: case study for the role of the MOFs.

J Mater Chem B

January 2025

Department of Biomedical Technology, College of Applied Medical Sciences in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia.

Exosomes, which are considered nanoscale extracellular vesicles (EVs), are secreted by various cell types and widely distributed in different biological fluids. They consist of multifarious bioactive molecules and use systematic circulation for their transfer to adjoining cells. This phenomenon enables exosomes to take part in intercellular and intracellular communications.

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Case report: Dieulafoy's lesion as a rare cause of massive gastrointestinal hemorrhage.

Int J Surg Case Rep

January 2025

General Surgery Department, Mahmoud El Matri Hospital, V59M+628, Ariana, Tunisia; Faculty of Medicine of Tunis, University of Tunis El Manar, R534+F9H, Rue de la Faculté de Médecine, Tunis, Tunisia.

Introduction And Importance: Dieulafoy's lesion is a rare but serious cause of gastrointestinal bleeding, typically affecting older adults. It involves an aberrant arteriole eroding the gastric mucosa, resulting in severe, recurrent bleeding that poses diagnostic and management challenges. We present a case report of massive gastrointestinal hemorrhage with hemodynamic instability associated with a Dieulafoy's lesion.

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In this study, we investigated various chromosomal and symbiotic markers in 40 bacterial strains that nodulate an invasive alien plant, Acacia salicina Lindl. in Tunisia. Our findings showed that the native rhizobia associated to A.

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Tuberculous osteo-arthritis unmasked through unusual elbow swelling: A case report.

Int J Surg Case Rep

January 2025

University of Tunis El Manar, Tunis Faculty of Medicine, 1007, Tunisia; Department of Orthopedic Surgery, Hospital Mongi Slim La Marsa, Tunisia.

Introduction And Importance: Tuberculous osteoarthritis, a rare condition affecting the elbow in 1-5 % of cases, poses diagnostic challenges due to its subtle clinical presentation, often resulting in delayed diagnosis. Herein, we present a case of tuberculous osteoarthritis involving the elbow joint. Our aim is to underscore the complexities associated with diagnosing this condition and to emphasize the critical importance of early recognition and appropriate management strategies for optimal patient outcomes.

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Nanoplastics are known to represent a threat to marine ecosystems. Their combination with other contaminants of emerging concerns (CECs) may amplify ecotoxic effects, with unknown impacts on marine biodiversity. This study investigates the effects, single and combined, of bisphenol A (BPA)-one of the most hazardous CECs-and polystyrene nanoparticles (PS NPs)-as a proxy for nanoplastics, being among the most commonly found asmarine debris-on cholinesterase (ChE) activities of the ascidian .

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Effect of Digoxin vs Beta-Blockers on Left Atrial Strain for Heart Rate-Controlled Atrial Fibrillation: The DIGOBET-AF Randomized Clinical Trial.

Am J Cardiovasc Drugs

December 2024

Cardiology A Department, Research Laboratory LR12 SP 16 Fattouma Bourguiba University Hospital, University of Monastir, Monastir University, Rue du 1er juin 1955, 5000, Monastir, Tunisia.

Unlabelled: BACKGROUND AND OBJECTIVE: Left atrial strain (LAS) has prognostic value in patients with atrial fibrillation (AF). Consequently, therapies that improve LAS may help reduce AF-related adverse cardiac events. We aimed to compare how digoxin and bisoprolol modulate LAS in patients with AF being treated with rate control.

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The current study was conducted to explore the phytochemical composition and in vitro antioxidant activity of Moringa oleifera leaves aqueous extract (MOLE), as well as its in vivo modulatory effects on abamectin (ABM)-induced oxidative stress in rat erythrocytes and brain tissue. Following extraction, the total phenolic, flavonoid, condensed tannin and ortho-diphenolic contents of MOLE were determined. High-performance liquid chromatography (HPLC) analysis allowed the identification and the quantification of 12 bioactive compounds: gallic acid, chlorogenic acid, caffeic acid, vanillic acid, quercetin, ferulic acid, ascorbic acid, alizarin, hesperidin, neohesperidin, resveratrol, and naringin.

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Laser-ablated graphene electrodes modified with redox melanin-like film for redox capacitive sensing via the scavenging of nitrite ions.

Food Chem

December 2024

Sensors and Biosensors Group, Analytical Chemistry and Electrochemistry Lab (LR99ES15), University of Tunis El Manar, Tunis El Manar, 2092 Tunis, Tunisia. Electronic address:

Improper use and harmful effects of nitrite ions pose a significant risk to human health. To address this concern, the use of carbon-based materials for electrochemical sensing is regarded as one of the most promising detection tools for ensuring the quality of drinking water and food products. In this context, we developed laser-ablated graphene electrodes (LAGEs) by direct laser scribing on a polyimide substrate, which were subsequently modified by electrochemical deposition of a redox-active melanin-like film (MeLF/LAGEs).

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Potential physiological tolerance mechanisms in faba bean to spp. parasitism.

Front Plant Sci

December 2024

Field Crops Laboratory, National Institute for Agricultural Research of Tunisia (INRAT), Carthage University, Ariana, Tunisia.

spp. are root parasitic plants that cause severe yield losses in faba bean ( L.).

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Alleviation of drought stress in tomato by foliar application of seafood waste extract.

Sci Rep

December 2024

Laboratory of Molecular Genetics, Immunology and Biotechnology (LR99ES12), Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis, 2092, Tunisia.

To manage the adverse effects of garbage pollution and avoid using chemicals, a natural extract of seafood shells was obtained and explored for its beneficial role. Physical characterization highlighted that its active compounds correspond to chitin and its derivative, chitosan. The ability of the extracted biostimulant to foster tomato tolerance was tested on drought-stressed plants.

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Etiologies of blue lips: A review.

Ann Dermatol Venereol

December 2024

Department of Dermatology, Charles Nicolle Hospital, Tunis, Tunisia; Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia.

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When HSFs bring the heat-mapping the transcriptional circuitries of HSF-type regulators in .

mSphere

December 2024

Institut Pasteur de Tunis, University of Tunis El Manar, Laboratoire de Microbiologie Moléculaire, Vaccinologie et Développement Biotechnologique, Tunis, Tunisia.

Heat shock factor (HSF)-type regulators are stress-responsive transcription factors widely distributed among eukaryotes, including fungi. They carry a four-stranded winged helix-turn-helix DNA-binding domain considered as the signature domain for HSFs. The genome of the opportunistic yeast encodes four HSF members, namely, Sfl1, Sfl2, Skn7, and the essential regulator, Hsf1.

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Objectives: Evaluate diabetic patients' knowledge, practices, and the prevalence of complications during Ramadan fasting (RF) before and after an education program.

Methods: We conducted a prospective study including 140 consecutive diabetic patients (DP) who intended to observe RF in 2023. Patients underwent a questionnaire and received pre-Ramadan education (PRE) according to the IDF-DAR 2021 recommendations.

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Rapid detection of SARS-CoV-2 RNA using a one-step fast multiplex RT-PCR coupled to lateral flow immunoassay.

BMC Infect Dis

December 2024

Laboratory of Molecular Epidemiology and Experimental Pathology, LR16IPT04, Institut Pasteur de Tunis, University of Tunis El Manar, Tunis, LR16IPT04, Tunisia.

Background: The COVID-19 has put emphasis on pivotal needs for diagnosis and surveillance worldwide, with the subsequent shortage of diagnostic reagents and kits. Therefore, it has become strategic for the countries to access diagnostics, expand testing capacity, and develop their own diagnostic capabilities and alternative rapid accurate nucleic acid diagnostics that are at lower costs. Here, we propose a visual SARS-CoV-2 detection using a one-step fast multiplex reverse transcription-PCR (RT-PCR) amplification coupled to lateral flow immunoassay detection on a PCRD device (Abingdon Health, UK).

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Associations of HLA-G 3'UTR polymorphisms and increased HLA-G expression with gastric cancer susceptibility and prognosis.

Immunobiology

December 2024

Laboratory of Microorganisms and Active Biomolecules (LR03ES03), Sciences Faculty of Tunis, University of Tunis El Manar, Tunis, Tunisia. Electronic address:

Background: Gastric cancer (GC) remains a serious health concern and is characterized by a multifactorial etiology involving both genetic and epigenetic factors. The aim of the current study was to examine the relationship between Human leukocyte antigen (HLA)-G 3'UTR polymorphisms and the expression of HLA-G in both tumor tissues and plasma samples from patients with GC in the Tunisian population.

Methods: HLA-G 3'UTR polymorphisms (14pb Insertion/deletion and + 3142C/G) were identified by polymerase chain reaction (PCR) or Sanger sequencing.

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This research paper investigates the application of Genetic Algorithms (GA) in optimizing Artificial Neural Networks (ANN) for phoneme recognition. The study examines the formalism of GA, their parameters, and operators, and describes the genetic strategy adopted for phoneme recognition using the TIMIT sound database. The paper presents the outcomes of experiments conducted on the phonemes of the test base and the DR1 dialect learning base of the TIMIT base, and compares the recognition rates obtained by learning and testing with those guided by Self-Organizing Map (SOM) experiments.

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A consistent part of gas sensor research activities aims to improve sensing performances by synthesizing new sensing materials, improving the selection of elements in arrays, and optimizing the feature extraction and classification algorithms. This paper combines most of these aspects to confer selectivity to a low-selectivity sensor by using feature extraction algorithms applied to the sensor response kinetics. Several algorithms were employed to represent the kinetic behavior of the sensor response during the adsorption and desorption phases.

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The study of the polyopisthocotylan parasites of marine fishes in the western Mediterranean is carried on using an integrative approach combining morphology and DNA barcodes. n. gen.

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