69 results match your criteria: "University of Mentouri[Affiliation]"

Landraces are a critical genetic resource for resilience breeding, offering solutions to prepare agriculture for the challenges posed by climate change. Their efficient utilisation depends on understanding their history and genetic relationships. The current study investigates the phylogenetic relationships of barley landraces from Algeria, varieties from the Near and Middle East, traditional landraces, and modern cultivars from Europe.

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This investigation aimed to assess the in vitro and in silico biological properties of the ethyl acetate (EtOAc) extract obtained from leaves of Schott collected in Algeria. The phytochemical screening data disclosed that flavonoids, tannins, coumarins, saponins, and anthocyanins were abundant. High levels of total phenolics, total flavonoids and flavonols (523.

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Concrete's widespread use in construction is increasing due to urbanization and population growth. While it offers durability and strength, its production poses environmental challenges. Researchers and global initiatives are working towards more sustainable concrete production methods and effective waste management, particularly for paper waste (WPA) and polyethylene terephthalate waste (PET).

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Molecular Characterization of Carbapenem and Colistin Resistance in Isolates Obtained from Clinical Samples at a University Hospital Center in Algeria.

Microorganisms

September 2024

Microbes Evolution Phylogeny and Infections (MEPHI), Institut de Recherche pour le Développement (IRD), Assistance Publique-Hopitaux de Marseille (AP-HM), IHU-Méditerranée Infection, Faculté de Pharmacie, Aix-Marseille University, 13385 Marseille, France.

The current study aimed to determine the molecular mechanisms of carbapenem and colistin resistance among the clinical isolates of from hospitalized patients admitted to a university hospital in Eastern Algeria. In total, 124 non-duplicate isolates of were collected from September 2018 to April 2019. Bacterial identification was performed using MALDI-TOF MS.

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The first report of an Algerian essential oil content and antioxidant assessment.

Nat Prod Res

September 2024

Research Unit, Valorization of Natural Resources, Bioactive Molecules and Physicochemical and Biological Analyses, University of Mentouri Brothers, Constantine, Algeria.

In the current study, we examined the chemical makeup and anti-oxidant potential of an Algerian . The results showed that there were moderate levels of phenols and flavonoids in the crude extract (15.11 ± 0.

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Phenolic Constituents, Photoprotective Effect, and Antioxidant Capacities of All.

Molecules

August 2024

Department of Food Technology, Nutrition and Food Science, Veterinary Faculty, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum", Campus de Espinardo, 30100 Murcia, Spain.

Article Synopsis
  • The study investigated the chemical composition and biological effects of polar extracts from a medicinal plant in the Asteraceae family using advanced mass spectrometry.
  • It identified twenty compounds in one extract and twenty-two in another, including five flavonoids, two of which were newly discovered in this genus.
  • The extracts showed strong antioxidant properties and high levels of phenolic and flavonoid content, suggesting potential applications in photoprotective cosmetics and pharmaceuticals.
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Background: Hypospadias continues to be a prevalent congenital anomaly affecting the male external genitalia, characterized by an unclear origin and complex treatment approaches. This study aimed to investigate the risk factors associated with hypospadias and explore its genetic link with the DICER1 rs3742330 variant.

Methods: The study involved two groups: 105 male children with hypospadias and 111 healthy male children as matched controls.

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Existing inhibitors of kynurenine-3-monooxygenase (KMO) have side effects and poorly cross the blood-brain barrier. Therefore, the discovery of new molecules targeting KMO isnecessary.This study aims to develop a novel therapeutic drug targeting KMO using computational methods and experimental validation of natural compounds.

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This study investigates the corrosion inhibition potential of 3,4-dimethoxy phenyl thiosemicarbazone (DMPTS) for copper in 1 M hydrochloric acid (HCl) solutions, aiming to disclose the mechanism behind its protective action. Through an integrative methodology encompassing electrochemical analyses-such as weight loss measurements, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS)-we quantitatively evaluate the corrosion protection efficacy of DMPTS. It was determined that the optimal concentration of DMPTS markedly boosts the corrosion resistance of copper, achieving an impressive inhibition efficiency of up to 89% at 400 ppm.

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Purification and Biochemical Characterization of Novel Galectin from the Black Poplar Medicinal Mushroom Cyclocybe cylindracea (Agaricomycetes) Strain MEST42 from Algeria.

Int J Med Mushrooms

March 2024

Laboratory of Microbiological Engineering and Application, Biochemistry and Molecular and Cellular Biology Department, Faculty of Nature and Life Sciences, University of Mentouri Brothers Constantine 1, Constantine 25017, Algeria.

In the present study, a new galectin designated Cyclocybe cylindracea lectin (CCL) was extracted from the fruiting bodies of the wild black popular mushroom C. cylindracea grown in Algeria. The protein was isolated using sepharose 4B as affinity chromatography matrix, and galactose as elutant.

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Development of new benzil-hydrazone derivatives as anticholinesterase inhibitors: synthesis, X-ray analysis, DFT study and / evaluation.

J Biomol Struct Dyn

January 2024

Laboratory of Electrochemistry of Molecular Materials and Complex (LEMMC), Department of Process Engineering, Faculty of Technology, University of Ferhat ABBAS, Sétif, Algeria.

Alzheimer's disease (AD) is a complex neurodegenerative disorder affecting the central nervous system. Current drugs for AD have limited effectiveness and often come with side effects. Consequently, there is a pressing need to develop new, safe, and more effective treatments for Alzheimer's disease.

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Docking of T6361 Analogues as Potential Inhibitors of MurA Followed by ADME-Toxicity Study.

Curr Drug Discov Technol

July 2024

Laboratory of Applied Biochemistry, Department of Biochemistry and Cellular and Molecular Biology, Faculty of Natural and Life Sciences, University of Mentouri Brothers Constantine 1, Constantine, Algeria.

Background: Developing more potent antibacterial agents is one of the most important tasks of scientists in the health field due to the problem of antibiotic resistance. Among the antibiotic targets, we mention MurA (UDP-N-Acetylglucosamine Enolpyruvyl Transferase), which is a key enzyme of peptidoglycan biosynthesis of the bacterial cell wall.

Objective: Our objective was to search for new inhibitors of the bacterial enzyme MurA by docking the analogues of its inhibitor T6361, a derivative of 5-sulfonoxy-anthranilic acid.

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This study aimed to investigate the chemical composition and antidiabetic properties of cultivated L. The ethanol extract was analyzed using LC-MS/MS, and 18 distinct phenolic compounds were identified. Among these, p-coumaric acid (6656.

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The title Schiff base compound, (E)-2-{[(4-methoxynaphthalen-1-yl)methylidene]amino}-4-methylphenol, CHNO (I), was synthesized via the reaction of 2-amino-4-methylphenol with 4-methoxynaphthalene-1-carbaldehyde. The structure of I was characterized by NMR, IR and UV-Vis spectroscopies in different solvents. The interatomic contacts in the crystal structure were explored using Hirshfeld surface analysis, which, together with the two-dimensional fingerprint plots, confirm the predominance of dispersion forces in the crystal structure.

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The title benzimidazole compounds, namely, 2-(4-methoxynaphthalen-1-yl)-1H-benzo[d]imidazole, CHNO (I) and 2-(4-methoxynaphthalen-1-yl)-1-[(4-methoxynaphthalen-1-yl)methyl]-1H-benzo[d]imidazole ethanol monosolvate, CHNO·CHO (II), were synthesized by the condensation reaction of benzene-1,2-diamine with 4-methoxynaphthalene-1-carbaldehyde in the ratios 1:1 and 1:2, respectively. In I, the mean plane of the naphthalene ring system is inclined to that of the benzimidazole ring by 39.22 (8)°, while in II, the corresponding dihedral angle is 64.

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In vitro assessment of biofunctional properties of Lactiplantibacillus plantarum strain Jb21-11 and the characterization of its exopolysaccharide.

Int Microbiol

February 2024

Laboratory of Biotechnology and Food Quality (BIOQUAL), Institute of Nutrition, Food and Agri-Food Technologies (INATAA), University of Mentouri Brother's Constantine 1 (UFMC1), Road of Ain El Bey, 25000, Constantine, Algeria.

The microbiota of traditional food provides a rich reservoir of biodiversity to find new strains with interesting features for novel functional food formulation. Therefore, this study aimed to investigate the biofunctional potential of the lactic acid bacteria (LAB) strain Jb21-11 isolated from Jben, a traditional Algerian fresh cheese. This isolate was selected out of a collection of 154 LAB based on its exopolysaccharide (EPS) phenotype and was preliminarily identified by polyphasic characterization as Lactiplantibacillus plantarum (previously known as Lactobacillus plantarum) and its biofunctional properties were then assessed in vitro.

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is one of the largest and most diverse genus of brown seaweeds, comprising of around 400 taxonomically accepted species. Many species of this genus have long been a part of human culture with applications as food, feed, and remedies in folk medicine. Apart from their high nutritional value, these seaweeds are also a well-known reservoir of natural antioxidant compounds of great interest, including polyphenols, carotenoids, meroterpenoids, phytosterols, and several others.

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Risk of noncommunicable diseases and associated factors in Algerian adolescents (10-19 years old).

Arch Pediatr

February 2023

Institute of Nutrition, Food and Agro-Food Technologies (INATAA), University of Mentouri Brothers Constantine 1 (UFMC1), Constantine 25000, Algeria; Laboratory of Nutrition and Food Technology (LNTA), University of Mentouri Brothers Constantine 1 (UFMC1), Constantine 25000, Algeria.

Objective: Noncommunicable diseases (NCDs) are a public health problem and their prevalence is increasing worldwide at an alarming rate. The objective of this study was to assess the predictive factors for NCDs in adolescents.

Material And Methods: The study included adolescents enrolled in public establishments in Constantine (east of Algeria).

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in folk medicine is used by Algerian traditional healers for treating a wide variety of diseases and conditions including dyspepsia, digestive problems, peptic ulcers, and, in particular, inflammatory diseases. The present study aimed to assess the phytochemical composition, in vitro antioxidant activity (using 2,2-diphenyl-1-picrylhydrazyl (DPPH), ABTS+, and reducing power methods), enzyme inhibitory activity (towards α-amylase and urease), antibacterial activity, and in vivo anti-inflammatory activity of the unripe fruit extracts of collected from different parts of the Djelfa region of Algeria. According to the findings, various aqueous extracts exhibited significant antioxidant and enzymatic activities in all tests, but showed that they have a weak inhibitory effect against all tested bacterial strains.

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The preventive effects of Ball. extract against oxidative stress induced by cisplatin in mice brains: and studies.

Drug Chem Toxicol

November 2023

Research Unit, Valorization of Natural Resources, Bioactive Molecules, Physicochemical and Biological Analysis (VARENBIOMOL), University of Mentouri Constantine 1, Constantine, Algeria.

Since antiquity, species have been used in folk medicine to treat several diseases owing to their potential biological activities that distinguish this genus such as antioxidant, anticancer, and anti-inflammatory effect. The current study aimed to investigate the possible neuroprotective effects of the -butanol extract of (BECM) against cisplatin (CP) induced neurotoxicity in mice. BECM's potential neuroprotective properties were studied and models.

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The Willd. plant's phenolic constituent extraction and identification were optimized using the ultrasound-assisted extraction (UAE) method and the LC-MS/MS analysis, respectively. Additionally, cupric reducing antioxidant capacity (CUPRAC), beta carotene, reducing power, DMSO alcalin, silver nanoparticle (SNP)-based method, phenanthroline, and hydroxyl radical tests were utilized to assess the extract's antioxidant capacity, while the neuroprotective effect was examined in vitro against acetylcholinesterase enzyme.

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First Occurrence of Megastigmane Glucosides in a Plant of Retama Genus.

Chem Biodivers

November 2022

Consiglio Nazionale delle Ricerche (CNR), Istituto di Chimica Biomolecolare (ICB), Via Campi Flegrei, 34, 80078, Pozzuoli (Na), Italy.

Chemical investigation of Retama sphaerocarpa collected in Algeria resulted in the isolation of two megastigmane glucosides, compounds 1 and 2, along with a series of isoflavones and phenol derivatives. Compound 1, named retamoside, was new and its structure was determined by extensive application of spectroscopic methods, including HRMS, 1D and 2D NMR and CD. The anti-inflammatory properties of co-occurring main megastigmane, saurobaccioside B (2) and structurally related vomifoliol (3) on LPS-stimulated murine macrophages RAW 274.

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Meat is a food of animal origin, which can be contaminated by infectious, parasitic and other non-infectious agents responsible for diseases, which threaten the health of consumers. This still poses a public health problem in Algeria and in many countries. In order to assess the epidemiological situation of certain diseases in the Taher region in Jijel and to determine the influence of certain variation factors and to estimate the risk on public health, a study was extended over a period of 14 months on a total of 1756 cattle slaughtered at the Taher slaughterhouse.

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Brown seaweeds are a good source of bioactive compounds, particularly of phlorotannins, which may exert a wide spectrum of pharmacological properties. In the present study, phlorotannins of were extracted using a 70% acetone solution and the crude extract was further purified through liquid-liquid partition, giving rise to -hexane, ethyl acetate and aqueous residue fractions. The crude extract and the purified fractions were evaluated for potential antioxidant abilities as well as for inhibitory potential towards the digestive enzymes α-amylase and pancreatic lipase, and anti-inflammatory potential through the hindering of albumin denaturation.

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Varus malalignment of the lower limb increases the risk of femoral neck fracture: A biomechanical study using a finite element method.

Injury

June 2022

Institut Pprime UPR 3346, CNRS - Université de Poitiers - ISAE-ENSMA, France; Department of Orthopaedic surgery and Traumatology, University Hospital, Martinique, France. Electronic address:

Introduction: The understanding of the stresses and strains and their dependence on loading direction caused by an axial deformity is very important for understanding the mechanism of femural neck fractures. The hypothesis of this study is that lower limb malalignment is correlated with a substantial stress variation on the upper end of the femur. The purpose of this biomechanical trial using the finite element method is to determine the effect of the loading direction on the proximal femur regarding the malalignment of the lower limb, and also enlighten the relation between the lower limb alignment and the risk of a femoral neck fracture.

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