3,178 results match your criteria: "University Of Sfax[Affiliation]"

Clustered regularly interspaced short palindromic repeats (CRISPR)-Cas systems have gained attention for their revolutionary potential in tuberculosis (TB) management, providing a novel approach to both diagnostics and treatment. This technology, renowned for its ability to accurately target and modify genetic material, offers a promising solution to the limitations of current TB diagnostic methods, which often rely on time-consuming culture techniques or polymerase chain reaction (PCR)-based assays. One of the key advantages of CRISPR-Cas systems is their high specificity and sensitivity, making them well-suited for detecting , even in low-bacterial-load samples.

View Article and Find Full Text PDF
Article Synopsis
  • Diagnosing epilepsy through EEG signals is complex and error-prone due to variability and the large amount of data involved, making portable diagnostic systems challenging to develop.
  • The paper proposes using compressive sensing to reduce EEG data while keeping important information, enabling better seizure classification using features extracted from the signals.
  • Implemented on microcontrollers like STM32 and Raspberry Pi, this system achieved significant advances, including up to 70% data reduction, faster transmission times, notable energy savings, and a high classification accuracy of 98.78% with preserved signal quality.
View Article and Find Full Text PDF

Phytochemicals, antioxidant, and antimicrobial activities of fruits peel.

Open Vet J

October 2024

Research Laboratory BMA "Biodiversity, Molecules, Application" Higher Institute of Applied Biology of Medenine, University of Gabes, Medenine, Tunisia.

Article Synopsis
  • - The research focuses on the phytochemical properties of cacti, specifically evaluating the fruit peel for its antioxidant and antimicrobial abilities.
  • - Advanced methods like mass spectroscopy and various free radical tests were used to analyze the fruit peel’s phenolic compounds and its efficacy against multiple bacteria and fungi.
  • - Results indicated that the fruit peel has high levels of beneficial compounds and strong antioxidant and antibacterial properties, suggesting its potential use in cosmetics and food preservation.
View Article and Find Full Text PDF

Introduction: the relationship between elevated plasma homocysteine (Hcy) and stroke has been established, but this association remains indistinct in cryptogenic stroke in adults. Our aim is to investigate the association between homocysteine, vitamins B9 and B12, and cryptogenic stroke. Furthermore, to determine the correlation between methylenetetrahydrofolate reductase (MTHFR) polymorphism and biochemical levels in plasma.

View Article and Find Full Text PDF

Background: Lead (Pb) is a metal that affects many body systems, primarily the male reproductive system. This study aimed to examine the phytochemical profiling and beneficial effects of Juglans regia oil (JRO) in alleviating lead-induced reprotoxicity-associated oxidative injury in rats. Adult male Wistar rats were randomly divided into four groups as follows: control group received no treatment, Pb group was exposed to 0.

View Article and Find Full Text PDF

Objective: The purpose of this study is to compare the surgical outcomes of open appendectomy (OA) and laparoscopic appendectomy (LA) for pediatric acute appendicitis in order to guide its future management.

Materials And Methods: We conducted a retrospective study including all children under the age of 14 years, who underwent appendectomy for acute appendicitis, during a period of 6 years (2013-2018). We divided our patients in two groups based on the surgical modality: the laparoscopic and open group.

View Article and Find Full Text PDF
Article Synopsis
  • - The objective of the study was to review how neonatal status epilepticus (SE) is defined and measured, focusing on literature available on seizure burden in newborns.
  • - The review analyzed 44 studies that primarily included infants with conditions like hypoxic-ischemic encephalopathy, using continuous EEG (cEEG) for SE identification, and mostly defined SE via specific seizure durations.
  • - Key findings revealed significant variability in definitions of neonatal SE, with a consistent trend showing that higher seizure burden was linked to worse outcomes in the 16 studies that explored this relationship.
View Article and Find Full Text PDF

In recent years, inorganic perovskite materials based on metallic halides have attracted significant attention due to their non-toxicity and ease of synthesis, making them suitable for various applications. This article describes the slow evaporation approach at room temperature for the fabrication of a non-toxic inorganic perovskite based on metallic halide CsZnCl. This compound crystallizes in the orthorhombic phase of the space group, as confirmed by room temperature X-ray diffraction.

View Article and Find Full Text PDF

Background: Hypertension is a prevalent non-communicable disease and unequivocally one of the most serious health threats of the twenty-first century. The prevention of both immediate and long-term consequences depends on ongoing therapeutic education.

Aims: To assess Tunisian hypertensive patients' knowledge of hypertension and then evaluate the impact of an educational program on knowledge among this population.

View Article and Find Full Text PDF

The aim of this study was to determine the incidence of the self-use of plants in cancer patients and its impact on overall survival (OS). This was a prospective study including young adult patients collected between January 15, 2018 and January 15, 2019 in the department of medical oncology at the Habib Bourguiba University Hospital. All patients were questioned about the concept of taking herbs.

View Article and Find Full Text PDF

This study investigates the structural, electrical, and dielectric properties of GdCrO (GCO) compounds. X-ray diffraction analysis confirmed the formation of the perovskite phase of GCO, crystallizing with the space group. Scanning electron microscopy (SEM) was employed to examine the morphology and chemical composition of the powder, ensuring compound homogeneity, while transmission electron microscopy (TEM) provided insights into the internal structure and finer morphology of the GCO sample.

View Article and Find Full Text PDF

Arterial stiffness has emerged as a prominent marker of risk for cardiovascular diseases. Few studies are interested in predicting symptomatic or asymptomatic arterial stiffness from hemodynamics and biomechanics parameters. Machine learning models can be used as an intelligent tool for arterial stiffness detection based on hemodynamic and biomechanical parameters.

View Article and Find Full Text PDF

Betalains from peels: UPLC-MS/MS metabolites profiling, computational investigation, and potential applicability as a raw meat colorant.

Heliyon

November 2024

Laboratory of Microbial and Enzymes Biotechnology and Biomolecules (LMEBB), Centre of Biotechnology of Sfax (CBS), University of Sfax-Tunisia, Road of Sidi Mansour Km 6, P. O. Box 1177, 3018, Sfax, Tunisia.

Given consumers', environmental and sustainability apprehensions, the meat industry investigated the natural colorant resources. As proof, betalain, peels (OSP) pigment, is premeditated in the meat industry. Here, OSP betalains were qualitatively profiled using UPLC-MS/MS, and 7 metabolites were identified: 6 betacyanins and a betaxanthin (arginine-betaxanthin).

View Article and Find Full Text PDF

New experimental methodology for determining the second crossover energy in insulators under stationary e-irradiation in a SEM.

Ultramicroscopy

January 2025

LaMaCoP, University of Sfax, Soukra Street Km 3, PO Box 1171, 3000 Sfax, Tunisia. Electronic address:

A new experimental methodology is proposed which uses the electrostatic influence method (EIM) in scanning electron microscope (SEM) in order to estimate the second crossover energy E for uncharged insulators. This experimental methodology based on simultaneous time measurement of the displacement and leakage currents, is approached to the short pulse irradiation technique but under stationary e-irradiation and allows determining the intrinsic secondary electron emission yield, σ (σ is the value of the total secondary electron yield just at the beginning of the irradiation before significant charge accumulation or before the formation of a surface potential). The obtained value of E for soda-lime glass is confirmed by two additional experiments based on secondary electron imaging.

View Article and Find Full Text PDF

Background: Existing research on the psychosocial wellbeing of sheltered women is primarily from Western contexts, with limited studies from collectivistic cultures like Pakistan. This study aims to compare the psychosocial health and illness of sheltered women in Pakistan with those of women living with their families.

Methods: A total of 184 sheltered women and 207 women from the general population from four Pakistani cities participated in this study.

View Article and Find Full Text PDF

Globular proteins (GPs) play vital roles in a wide range of biological processes, encompassing enzymatic catalysis and immune responses. Enzymes, among these globular proteins, facilitate biochemical reactions, while others, such as haemoglobin, contribute to essential physiological functions such as oxygen transport. Given the importance of these considerations, accurately identifying Globular proteins is essential.

View Article and Find Full Text PDF

Proteins interact with each other in complex ways to perform significant biological functions. These interactions, known as protein-protein interactions (PPIs), can be depicted as a graph where proteins are nodes and their interactions are edges. The development of high-throughput experimental technologies allows for the generation of numerous data which permits increasing the sophistication of PPI models.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates a new water-soluble polysaccharide called PSP extracted from leaves, using techniques like FT-IR and NMR to identify its chemical structure.
  • HPLC analysis shows that PSP is a heteropolysaccharide made up of two types of monosaccharides, with additional assessments revealing its semi-crystalline nature and various functional properties.
  • The research highlights PSP's antioxidant potential in food preservation, particularly in ground beef, where it significantly inhibits lipid oxidation, microbial growth, and demonstrates stability in color, pH, and moisture.
View Article and Find Full Text PDF

Outcomes of peripartum cardiomyopathy in North Africa: insights from a single-center observational study in Tunisia.

BMC Pregnancy Childbirth

November 2024

Department of Gynecology and Obstetrics, Faculty of Medicine, Hedi Chaker University Hospital, University of Sfax, Sfax, Tunisia.

Article Synopsis
  • - Peripartum cardiomyopathy (PPCM) is a rare and serious heart condition often occurring during or after pregnancy; this study assessed its outcomes in North Africa over a 12-year period from 2010 to 2022.
  • - Out of 27 PPCM patients studied, most presented symptoms like severe dyspnea and had a low average heart function measurement (LVEF of 30%); complications included pulmonary edema (85%) and the need for ECMO support in two patients.
  • - The follow-up revealed that 67% of patients showed recovery in heart function, but the overall mortality rate was 15%, with significant mortality associated with factors like past pregnancies and poor prenatal care.
View Article and Find Full Text PDF
Article Synopsis
  • * Researchers optimized key factors like extraction time, temperature, and liquid-to-solid ratio, concluding with specific parameters for the peel (9.57 min, 42.20°C, 27.79 mL/g) and pulp (10.08 min, 40.84°C, 31.52 mL/g).
  • * The main bioactive compounds identified in the extracts were chlorogenic and caffeic acids, along with flavonoids like rutin and quercetin, indicating a potential for sustainable and eco-friendly industrial production of antioxidant-rich extracts.
View Article and Find Full Text PDF

The encephalomyopathic mtDNA depletion syndrome with methylmalonic aciduria is associated with succinyl-CoA synthetase (SCS) deficiency caused by pathogenic variants in genes encoding its two subunits. SCS is a mitochondrial enzyme involved in several metabolic pathways and acts as a heterodimer composed of α and β subunits encoded by SUCLG1 and SUCLA2 genes, respectively. The purpose of this study was to analyze the effects of the most pathogenic non-synonymous single nucleotide polymorphisms (nsSNPs) by applying, using different prediction tools, a filtering strategy, on the 343 and 365 nsSNPs found in SUCLG1 and SUCLA2 genes, respectively, retrieved from the databases, then to evaluate their structural and functional effects using homology modeling and molecular docking.

View Article and Find Full Text PDF
Article Synopsis
  • * The structure of CsPb(Br,I) changes from a two-dimensional tetragonal framework at lower temperatures to a three-dimensional cubic structure at higher temperatures, especially above 630 K, where significant deficiencies in Cs and (Br,I) occur.
  • * Studies reveal a very low thermal conductivity linked to the material’s properties, alongside optical gap measurements that align with theoretical calculations, indicating promise for use in energy applications.
View Article and Find Full Text PDF
Article Synopsis
  • * The yeast strains demonstrated resilience, growing in high concentrations of sucrose, salt, and extreme temperatures, and showed significant inhibition of mycotoxigenic species that affect dates, with inhibition percentages between 43.6% and 70.3%.
  • * The strains produced volatile compounds that effectively inhibited fungal growth and sporulation, indicating their potential as a safe and eco-friendly alternative to synthetic fungicides for protecting stored dates.
View Article and Find Full Text PDF

Can We Predict Post-operative Sepsis after Neonatal Abdominal Surgery?

Surg Infect (Larchmt)

November 2024

Research laboratory "developmental and induced diseases" (LR19ES12), Faculty of medicine of Sfax, University of Sfax, Sfax, Tunisia.

View Article and Find Full Text PDF

The latest research progress on polysaccharides-based biosensors for food packaging: A review.

Int J Biol Macromol

December 2024

Laboratory of Microbial Biotechnology and Enzymatic Engineering (LMBEE), Centre of Biotechnology of Sfax (CBS), University of Sfax, Road Sidi Mansour Km 6, P.O. Box 1177, Sfax 3018, Tunisia. Electronic address:

In recent years, polysaccharide-based biosensors have emerged as promising technologies for intelligent food packaging, offering innovative solutions to enhance food quality and safety. This review highlights advancements in designing, developing, and applying these biosensors, particularly those utilizing polysaccharides such as chitosan, cellulose and alginate. Engineered with nanomaterials like ZnO, silver, and carbon nano-tubes demonstrated high sensitivity in real-time monitoring of food spoilage indicators, including pH changes, volatile nitrogen compounds and microbial activity.

View Article and Find Full Text PDF