24 results on '"Bakkali, M."'
Search Results
2. Single and dual inoculation with rhizobacteria on alfalfa (Medicago sativa L.) growth under lead stress conditions
- Author
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Bakkali Bouarrakia, M., Elyemlahi, A., El Galiou, O., Hassani Zerrouk, M., Laglaoui, A., Bakkali, M., and Arakrak, A.
- Published
- 2023
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3. Comparative transcriptomics suggests a highly species-specific nature of the phenotypic plasticity associated with the outbreaks of the two main pest locusts.
- Author
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Bakkali, N., primary, Saadi, S., additional, Badih, A., additional, and Bakkali, M., additional
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- 2024
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4. Single and dual inoculation with rhizobacteria on alfalfa (Medicago sativa L.) growth under lead stress conditions
- Author
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Bakkali Bouarrakia, M., primary, Elyemlahi, A., additional, El Galiou, O., additional, Hassani Zerrouk, M., additional, Laglaoui, A., additional, Bakkali, M., additional, and Arakrak, A., additional
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- 2022
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5. Effect of Lactobacillus spp. strains on the microbiological, biochemical, and organoleptic properties of Moroccan goat's cheese during ripening.
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El Galiou, O., Azzouz, S., Ahadaf, S., Lamhamdi, M., Zantar, S., Arakrak, A., Bakkali, M., and Laglaoui, A.
- Subjects
GOAT cheese ,LACTOCOCCUS lactis ,CHEESE ripening ,LACTIC acid bacteria ,MOLECULAR evolution ,LACTOBACILLUS ,LACTOBACILLUS plantarum ,DAIRY microbiology - Abstract
The aim of the present work was to investigate the effect of adding autochthonous lactic acid bacteria strains (LAB) to Moroccan goat's milk cheese, focusing on its microbiological and biochemical evolution during the ripening process, as well as on the product's sensorial properties. We prepared three types of cheese: (i) a control cheese (CNT) made by adding a starter culture composed of a strain of Lactococcus lactis subsp. lactis var. diacetylactis and a strain of Lactococcus lactis subsp. lactis; (ii) a cheese ("LP") made with the same lactococcal starter culture, and adding a strain of Lactobacillus plantarum as an adjunct culture, and (iii) a cheese ("LPC") made with the same lactococcal starter culture, and adding Lactobacillus paracasei as an adjunct culture. The counts of most bacterial groups decreased as the cheeses matured, except for lactic acid bacteria, which increased during ripening. Throughout the ripening period, LP cheese showed the highest values for total nitrogen, soluble nitrogen, and soluble nitrogen in 12% TCA. On the 60th day of ripening, the highest contents of diacetyl and acetoin were recorded in LPC cheese. A significant difference in FFA was observed among the LP, LPC, and CNT cheeses, thus indicating a change in lipolysis extension (C4:0-C18:3 FFA) that might be influenced by the starter employed. These suggested that both adjunct strains could produce high-quality Moroccan goat cheese. However, the addition of Lactobacillus paracasei culture had the particular advantage of improving aroma intensity and overall cheese quality. Moreover, the lipolysis process increased continually until the end of the ripening period, thereby confirming that the ripening phase is the main factor that affects these cheeses' sensory properties. The cheeses made with adjunct cultures had the typical taste of Moroccan goat cheese, presented an acceptable flavour, and fulfilled the usual sensory requirements. [ABSTRACT FROM AUTHOR]
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- 2023
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6. EVALUATION OF THE ANTIBACTERIAL ACTIVITY OF ESSENTIAL OILS AGAINST E. COLI ISOLATED FROM RABBITS
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B, Majda, primary, Barchan, A., additional, Aarab, A., additional, Bakkali, M., additional, Arakrak, A., additional, and Laglaoui, A., additional
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- 2022
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7. Design and experimental validation of a multifunction Single layer UHF-RFID Tag antenna
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El Bakkali, M., primary, Ennasar, M. A., additional, El Mrabet, O., additional, and García, R. F., additional
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- 2022
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8. Fabrication of compact Substrate Integrated Waveguide dual band Bandpass Filter using Complementary split-ring resonators for C and X band applications
- Author
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Akkader, S., Bouyghf, H., Baghdad, A., Belbachir, A. Kchairi, and Bakkali, M. El
- Abstract
•The Design and the optimization of substrate integrated waveguide is done by genetic algorithm and then we Loaded Complementary split-ring resonators (CSRR) at the top layer of the SIW to take advantages of both SIW and CSRRs. The simulation of proposed Filter is done by HFSS software in order to perform the optimal parametric study.•Fabrication of band pass filter is done successfully by LPKF protomat E33 machine, and Rohde/Schwarz ZVB 20 Vector Network Analyzer perform the measure.•The filter has a miniatured size: 13mm*15mm only and displays two passbands: the first has a bandwidth of 2 GHz and resonates at 6.8 GHz, while the second has a bandwidth of 5,55 GHz and resonates at 10.3 GHz. Furthermore, developed BPF filter has low insertion loss: S21=1.7dB and 1.9 dB and improved return loss: S11=24dB and 22 dB, respectively. In addition, two transmissions zero with rejection of 16 dB and 19 dB are achieved at 7.4 GHz and 14.8 GHz.•We have added a parametric study to display the effect of etch geometric parameter on the losses, frequency and bandwidth.
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- 2024
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9. Association of the Immunity Genes with Type 1 Diabetes Mellitus.
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Khaiz Y, Al Idrissi N, Bakkali M, and Ahid S
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- Humans, Mutation, Diabetes Mellitus, Type 1 genetics, Diabetes Mellitus, Type 1 immunology, Genetic Predisposition to Disease, HLA Antigens genetics, HLA Antigens immunology
- Abstract
Type 1 diabetes mellitus (T1D) is a complicated illness marked by the death of insulin- producing pancreatic beta cells, which ultimately leads to insulin insufficiency and hyperglycemia. T lymphocytes are considered to destroy pancreatic beta cells in the etiology of T1D as a result of hereditary and environmental factors. Although the latter factors are very important causes of T1D development, this disease is very genetically predisposed, so there is a significant genetic component to T1D susceptibility. Among the T1D-associated gene mutations, those that affect genes that encode the traditional Human Leukocyte Antigens (HLA) entail the highest risk of T1D development. Accordingly, the results of decades of genetic linkage and association studies clearly demonstrate that mutations in the HLA genes are the most associated mutations with T1D. They can, therefore, be used as biomarkers for prediction strategies and may even prove to be of value for personalized treatments. Other immunity-associated genetic loci are also associated with higher T1D risk. Indeed, T1D is considered an autoimmune disease. Its prevalence is rising globally, especially among children and young people. Given the global rise of, and thus interest in, autoimmune diseases, here we present a short overview of the link between immunity, especially HLA, genes and T1D., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
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- 2025
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10. Oral β-RA induces metabolic rewiring leading to the rescue of diet-induced obesity.
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Díaz-Casado ME, González-García P, López-Herrador S, Hidalgo-Gutiérrez A, Jiménez-Sánchez L, Barriocanal-Casado E, Bakkali M, van de Lest CHA, Corral-Sarasa J, Zaal EA, Berkers CR, and López LC
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- Animals, Mice, Male, Ubiquinone analogs & derivatives, Ubiquinone pharmacology, Ubiquinone metabolism, Ubiquinone administration & dosage, Adipose Tissue, White metabolism, Adipose Tissue, White drug effects, Adipose Tissue, White pathology, Liver metabolism, Liver pathology, Lipid Metabolism drug effects, Administration, Oral, Diet, High-Fat adverse effects, Humans, Obesity metabolism, Obesity drug therapy, Mice, Inbred C57BL
- Abstract
Obesity represents a significant health challenge, intricately linked to conditions such as type II diabetes, metabolic syndrome, and hepatic steatosis. Several existing obesity treatments exhibit limited efficacy, undesirable side effects or a limited capability to maintain therapeutics effects in the long-term. Recently, modulation Coenzyme Q (CoQ) metabolism has emerged as a promising target for treatment of metabolic syndrome. This potential intervention could involve the modulation of endogenous CoQ biosynthesis by the use of analogs of the precursor of its biosynthesis, such as β-resorcylic acid (β-RA). Here, we show that oral supplementation with β-RA, incorporated into the diet of diet-induced obese (DIO) mice, leads to substantial weight loss. The anti-obesity effects of β-RA are partially elucidated through the normalization of mitochondrial CoQ metabolism in white adipose tissue (WAT). Additionally, we identify an HFN4α/LXR-dependent transcriptomic activation of the hepatic lipid metabolism that contributes to the anti-obesity effects of β-RA. Consequently, β-RA mitigates WAT hypertrophy, prevents hepatic steatosis, counteracts metabolic abnormalities in WAT and liver, and enhances glucose homeostasis by reducing the insulin/glucagon ratio and plasma levels of gastric inhibitory peptide (GIP). Moreover, pharmacokinetic evaluation of β-RA supports its translational potential. Thus, β-RA emerges as an efficient, safe, and translatable therapeutic option for the treatment and/or prevention of obesity, metabolic dysfunction-associated steatotic liver disease (MASLD)., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Luis C. Lopez reports article publishing charges was provided by University of Granada. Luis C. Lopez has patent #WO2022123103 issued to No. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2024
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11. Fine-scale genetic structure and phenotypic divergence of a passerine bird population inhabiting a continuous Mediterranean woodland.
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Garrido-Bautista J, Comas M, Jowers MJ, Smith S, Penn DJ, Bakkali M, and Moreno-Rueda G
- Abstract
Genetic differentiation between populations inhabiting ecologically different habitats might appear because of limited dispersal and gene flow, which may lead to patterns of phenotypic divergence and local adaptation. In this study, we use dispersal, genotypic (24 microsatellite loci) and phenotypic (body size and clutch size) data to analyse patterns of genetic structuring and phenotypic divergence in a blue tit ( Cyanistes caeruleus ) population inhabiting a continuous and heterogeneous woodland along a valley. The two slopes of the valley differ in their forest formations and environmental conditions. Findings showed that most blue tits reproduced within their natal slope. Accordingly, microsatellite analyses revealed that populations of blue tits established in the two slopes show subtle genetic differentiation. The two genetic populations diverged in clutch size, exceeding the level of differentiation expected based on genetic drift, hence suggesting divergent selection (or other processes promoting divergence) on this life-history trait. Our findings reveal that restricted dispersal and spatial heterogeneity may lead to genetic differentiation among bird populations at a surprisingly small scale. In this respect, it is worth highlighting that such differentiation occurs for an organism with high dispersal capacity and within a continuous woodland. Moreover, we show that small-scale ecological differences, together with limited gene flow, can result in selection favouring different phenotypes even within the same continuum population., Competing Interests: The authors declare no competing financial interests., (© 2024 The Authors.)
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- 2024
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12. Tuberculosis in southern Morocco: Retrospective analysis from 2006 to 2012.
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Ait Ouaaziz N, El Bakkali M, El Yahyaoui O, Bejja F, Taboz Y, Soulaymani A, and Quyou A
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- Humans, Morocco epidemiology, Retrospective Studies, Male, Female, Adolescent, Adult, Middle Aged, Young Adult, Child, Risk Factors, Child, Preschool, Aged, Infant, Tuberculosis, Pulmonary epidemiology, Tuberculosis, Pulmonary diagnosis, Prevalence, Tuberculosis epidemiology, Tuberculosis diagnosis
- Abstract
Introduction: Tuberculosis, a global major concern, causes millions of deaths annually despite WHO strategies. A persistent gap in detection and treatment facilitates rapid spread in high-burden countries., Aims: Analyze the clinical-epidemiological profile of tuberculosis patients in Laayoune and Tarfaya, Morocco, emphasizing risk factors and evolution of the tuberculosis Methods: Retrospective analysis of 1332 tuberculosis cases at the Respiratory Diseases Diagnosis and Treatment Center in Laayoune (2006-2012). Variables with P < 0.10 in univariate analysis were included in multivariate analysis using multiple logistic regression to define the risk factors for tuberculosis, expressed as odds ratios (OR) with a 95% confidence interval (CI)., Results: The analysis revealed a pulmonary predominance (≈61%), with pleural (41.3%) and lymph node (31.5%) tuberculosis prevalent among extrapulmonary cases. Among 515 extrapulmonary tuberculosis cases, intestinal tuberculosis (14 cases) showed the highest mortality rate at 14.29%. The 15 to 64 age groups had a significantly higher risk of contracting pulmonary tuberculosis to children, and the 65 and over age group also had the highest risk of developing pulmonary tuberculosis (aOR=5.83 [2.43, 14.00]). Other risk factors included rural origin, personal history of tuberculosis, and smoking, all significantly associated with pulmonary tuberculosis (aOR=2.40 [1.001, 5.76]; aOR=2.00 [1.11, 3.61]; aOR=2.38 [1.40, 4.06]). Conversely, female gender was a protective factor (aOR=0.53 [0.40, 0.70]). Regarding recovery and loss to follow-up rates, they were higher in those with pulmonary tuberculosis (39.0% vs 2.1%; aOR=33.41 [17, 66.52]; 16.9% vs 10.3%; aOR=1.57 [1.02, 2.41], respectively)., Conclusion: Holistic initiatives across various sectors will be essential to eliminate tuberculosis by 2030.
- Published
- 2024
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13. Analysis of the bacterial diversity in Moroccan Jben cheese using TTGE, DGGE, and 16S rRNA sequencing.
- Author
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Azzouz S, Ahadaf S, Zantar S, El Galiou O, Arakrak A, Bakkali M, and Laglaoui A
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- Animals, Cattle, Female, RNA, Ribosomal, 16S genetics, Temperature, Electrophoresis, Goats, Saccharomyces cerevisiae, Cheese
- Abstract
This research investigated the physicochemical, microbiological, and bacterial diversity of Jben cheese, a popular artisanal variety in Morocco. The bacterial diversity was explored using culture-independent methods, including temporal temperature gel electrophoresis (TTGE), denaturing gradient gel electrophoresis (DGGE), and high-throughput sequencing (HTS). Significant intra-sample differences were observed for most physicochemical parameters within each milk type, while inter-sample differences occurred between cow and goat cheeses for dry matter and ash. Jben cheese exhibited distinct characteristics, with low pH values of 3.96, 4.16, and 4.18 for cow, goat, and mixed cheeses, respectively. Goat cheeses had higher fat (49.23 g/100 g), ash (1.91 g/100 g), and dry matter (36.39 g/100 g) than cow cheeses. All cheeses displayed high microbial counts, with a notable prevalence of the lactic acid bacteria (LAB) group, averaging 8.80 ± 0.92 log CFU/g. Jben cheese also displayed high contamination levels with total coliforms, faecal coliforms, yeast, and molds. Fatty acid profiling revealed fraudulent practices in Jben cheese marketing, with cow or mixed cheeses sold as goat cheese, as proven by low capric acid concentration. HTS analysis of Jben cheese identified ten genera and twenty-four species, highlighting Lactococcus lactis as predominant. TTGE and DGGE confirmed the presence of L. lactis but failed to provide the detailed profile achieved through HTS analysis. HTS has been demonstrated to be more reliable, whereas TTGE/DGGE methods, though informative, were more time-consuming and less reliable. Despite limitations, the combined use of TTGE, DGGE, and HTS provided a comprehensive view of indigenous bacterial communities in Jben cheese, identifying L. lactis as the main species., (© 2024. The Author(s), under exclusive licence to Springer Nature B.V.)
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- 2024
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14. Autism spectrum disorder profiles in RASopathies: A systematic review.
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Debbaut E, Steyaert J, and El Bakkali M
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- Humans, Failure to Thrive genetics, Autism Spectrum Disorder genetics, Noonan Syndrome genetics, Heart Defects, Congenital genetics, Costello Syndrome genetics, Neurofibromatosis 1 genetics
- Abstract
Background: RASopathies are associated with an increased risk of autism spectrum disorder (ASD). For neurofibromatosis type 1 (NF1) there is ample evidence for this increased risk, while for other RASopathies this association has been studied less. No specific ASD profile has been delineated so far for RASopathies or a specific RASopathy individually., Methods: We conducted a systematic review to investigate whether a specific RASopathy is associated with a specific ASD profile, or if RASopathies altogether have a distinct ASD profile compared to idiopathic ASD (iASD). We searched PubMed, Web of Science, and Open Grey for data about ASD features in RASopathies and potential modifiers., Results: We included 41 articles on ASD features in NF1, Noonan syndrome (NS), Costello syndrome (CS), and cardio-facio-cutaneous syndrome (CFC). Individuals with NF1, NS, CS, and CFC on average have higher ASD symptomatology than healthy controls and unaffected siblings, though less than people with iASD. There is insufficient evidence for a distinct ASD phenotype in RASopathies compared to iASD or when RASopathies are compared with each other. We identified several potentially modifying factors of ASD symptoms in RASopathies., Conclusions: Our systematic review found no convincing evidence for a specific ASD profile in RASopathies compared to iASD, or in a specific RASopathy compared to other RASopathies. However, we identified important limitations in the research literature which may also account for this result. These limitations are discussed and recommendations for future research are formulated., (© 2024 The Authors. Molecular Genetics & Genomic Medicine published by Wiley Periodicals LLC.)
- Published
- 2024
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15. Management of adverse events in a Moroccan regional hospital: a state of art and perspectives.
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Elwardi K, Bakkali M, and Laglaoui A
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- Humans, Morocco, Cross-Sectional Studies, Retrospective Studies, Hospitals, Female, Surgical Wound Infection prevention & control, Surgical Wound Infection epidemiology, Male, Risk Management organization & administration, Cross Infection prevention & control, Cross Infection epidemiology, Medical Errors prevention & control, Medical Errors statistics & numerical data
- Abstract
Introduction: the risk management system is useful to identify, analyze, and reduce the risk occurrence of adverse events (AEs) in health services. This system suggests useful improvements to patients and to the whole institution and also contributes to the acquisition of a collective and organizational safety culture. This study presented a state of the art of the management of AEs identified in different services of a regional hospital in the north of Morocco., Methods: this is a retrospective cross-sectional exploratory study carried out from 2017 to 2019 using observations and semi-structured interviews, which were recorded, re-transcribed, and analyzed. Data was also collected from audit reports, results of investigations of the nosocomial infection control committee and the risk management commission, AEs declaration sheets, and meetings reports., Results: a number of 83 AEs were recorded, 10 of which were urgent. The reported events were related to care, infection risk, the drugs circuit, and medico-technical events. Two hundred cases of nosocomial infections were also recorded, of which 75 occurred in the intensive care unit and 35 in the maternity service. Surgical site infections were the most frequently reported complication. Adverse events were related to organizational failure, equipment problems, and errors related to professional practices., Conclusion: our findings may guide the improvement of the event management system in order to reduce the occurrence of future incidents. Thus, improving the risk management system requires setting up training strategies for staff on the importance of this system and its mode of operation., Competing Interests: The authors declare no competing interests., (Copyright: Khadija Elwardi et al.)
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- 2024
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16. Primary autonomic failure: a complex case of orthostatic hypotension in a hypertensive elderly patient.
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El-Mhadi S, Mouine N, Benjelloun H, Aboudrar S, and El Bakkali M
- Abstract
Background: Primary autonomic failure (PAF) or Bradbury Eggleston syndrome is a neurodegenerative disorder of the autonomic nervous system characterized by orthostatic hypotension., Case Summary: We report the case of a 76-year-old patient with a history of hypertension, who presented with exercise-induced fatigue. He exhibited systolic hypertension and resting bradycardia in the supine position, with orthostatic hypotension without reactive tachycardia, suggesting dysautonomia. Neurological examination was unremarkable. The patient underwent cardiovascular autonomic testing, revealing evidence of beta-sympathetic deficiency associated with neurogenic orthostatic hypotension. Causes of secondary dysautonomia were excluded. The patient was diagnosed with PAF. Even if managing the combination of supine hypertension and orthostatic hypotension was challenging, significant improvements in functional and haemodynamic status were observed with a personalized management approach., Discussion: Throughout this case report, we emphasize the critical need for an evaluation of autonomic function and blood pressure's dynamics in hypertensive patients experiencing orthostatic symptoms, enabling the implementation of tailored therapeutic strategies., Competing Interests: Conflict of interest: None declared., (© The Author(s) 2024. Published by Oxford University Press on behalf of the European Society of Cardiology.)
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- 2024
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17. The Multivariate Regression Models Suggested as Standardising Tools for Categorising Solitarious and Gregarious Groups of the Main Pest Locust, Schistocerca gregaria , Produce Reproducible Results.
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Saadi S, Bakkali N, Martín-Blázquez R, Badih A, and Bakkali M
- Abstract
Outbreaks of the desert locust Schistocerca gregaria affect some of the poorest parts of Africa, with devastating outcomes. The key to understanding and dealing with this problematic adaptation to environmental changes is comparing gregarious and solitarious locusts, either in nature or in laboratories. Categorising locusts and detecting changes in their phase status is key to such comparisons, which have been hitherto based on applying mathematical models that use behavioural parameters and that each laboratory has to build anew for each experiment. All the models used thus far are different from one another. This implies differences in the tools used for the different experiments and by the different laboratories and, thus, potential noise in the results and interpretations. Standardising the way locusts are categorised is necessary if we want to reduce noise and errors. It is crucial if we seek to make the results and interpretations transferable and comparable between experiments and laboratories for such an important research area. To tackle this problem, we suggested two models as possible standardising tools. However, the problem of a lack of standardised tools re-emerged due to the doubts cast on the validity of those models. Here, we use samples from independent S. gregaria populations in order to test and validate those models. We discuss how successful the two models were at categorising solitarious, intermediate (transient), and gregarious nymph and adult S. gregaria samples. We highlight shortcomings and make more specific recommendations on the use of those models based on the precision differences they show when categorising solitarious and gregarious S. gregaria nymph and adult samples. Overall, both models have proven to be valid since their results were largely replicated and seem reproducible.
- Published
- 2024
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18. Marine collagen: Unveiling the blue resource-extraction techniques and multifaceted applications.
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Laasri I, Bakkali M, Mejias L, and Laglaoui A
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- Animals, Antihypertensive Agents chemistry, Antioxidants chemistry, Peptides chemistry, Collagen chemistry, Wound Healing
- Abstract
Marine organisms such as fish and shellfish are composed of compounds with properties and characteristics that have been proven useful in a variety of sectors such as cosmetics, healthcare (wound healing), food industries, and tissue engineering. Collagen extraction from fish waste as a "blue resource" has attracted research attention over the past decade. Around 75 % of fish waste contains a high concentration of collagen. This has driven research in the conversion of these low-cost by-products into valuable products. Collagen extracted by acidic or/and enzymatic methods is gaining a lot of attention today due to its low cost and high yield. Fermentation and enzymatic hydrolysis stand out as one of the most environmentally sustainable and ecologically friendly methods for collagen extraction. Because of its great biocompatibility, excellent bioactivity, and low antigenicity, marine collagen is receiving more attention. Furthermore, collagen-derived peptides may exhibit interesting antioxidant activity, potent antihypertensive activity, and antimicrobial activity against different strains of bacteria. This review focuses on the advancements in extraction and detection methods of marine collagen, both from a technological and legislative standpoint, in addition to exploring its diverse range of application domains., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
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19. Promoting the growth of Sulla flexuosa L. by endophytic root nodule bacteria authors and affiliations.
- Author
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Hamane S, El Yemlahi A, Hassani Zerrouk M, El Galiou O, Laglaoui A, Bakkali M, and Arakrak A
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- Plant Development, Fungi, Endophytes, Plant Roots microbiology, Fabaceae microbiology
- Abstract
Legume plants rely upon multipartite interactions between rhizobia and bacterial endophytes within root nodules to facilitate plant growth. This study aimed to isolate and identify indigenous endophytic bacteria from root nodules of Sulla aculeolata L. in Northeast Morocco. Based on their tri-calcium phosphate (TCP) solubilization capacity, five endophytes were chosen for further evaluation of their plant growth traits. All isolates were hydrogen cyanide (HCN) and siderophore producers, while only BCH24 tested positive for ACC deaminase activity. Indole-3-acetic acid (IAA) synthesis ranged from 1.27 mgL
- 1 to 2.89 mgL- 1 , while soluble phosphate concentrations was between 7.99 mg L- 1 and 110.58 mg L- 1 . Additionally, all the endophytes were able to produce more than two lytic enzymes. Based on the analysis of 16 S rRNA gene sequences five isolates were identified as Enterobacter sp (BCH13, BCH2), Pseudomonas sp (BCH16, BCH24), and Serratia sp (BCH10). The strains inhibited the growth of three phytopathogenic fungi, with BCH13 exhibiting the highest rate against Aspergillus ochraceus (45%), followed by BCH24 against Fusarium oxysporum (40%) and Botrytis cinerea (35%), respectively. In vivo inoculation of halotolerant strains Enterobacter hormaechei (BCH13) and Pseudomonas moraviensis (BCH16) under gnotobiotic conditions revealed that co-inoculation with Rhizobium sullae KS6 improved plant development compared to single inoculation, making it a promising eco-friendly bio-inoculant for legume Sulla flexuosa L. production., (© 2023. The Author(s), under exclusive licence to Springer Nature B.V.)- Published
- 2023
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20. Comparison between the Gametophyte and the Sporophyte Transcriptomes of the Endangered Fern Vandenboschia speciosa .
- Author
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Martín-Blázquez R, Bakkali M, Ruiz-Estévez M, and Garrido-Ramos MA
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- Transcriptome genetics, Germ Cells, Plant physiology, Genomics, High-Throughput Nucleotide Sequencing, Ferns genetics
- Abstract
Genomic resources are essential to understanding the evolution and functional biology of organisms. Nevertheless, generating genomic resources from endangered species may be challenging due to the scarcity of available specimens and sampling difficulties. In this study, we compare the transcriptomes of the sporophyte and the gametophyte of the endangered fern Vandenboschia speciosa . After Illumina sequencing and de novo transcriptome assembly of the gametophyte, annotation proved the existence of cross-species contamination in the gametophyte sample. Thus, we developed an in silico decontamination step for the gametophyte sequences. Once the quality check of the decontaminated reads passed, we produced a de novo assembly with the decontaminated gametophyte reads (with 43,139 contigs) and another combining the sporophyte and in silico decontaminated gametophyte reads (with 42,918 contigs). A comparison of the enriched GO terms from the top 1000 most expressed transcripts from both tissues showed that the gametophyte GO term set was enriched in sequences involved in development, response to stress, and plastid organization, while the sporophyte GO term set had a larger representation of more general metabolic functions. This study complements the available genomic resources on the life cycle of the endangered fern Vandenboschia speciosa .
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- 2023
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21. Development of oculomotor control throughout childhood: A multicenter and multiethnic study.
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Pueyo V, Yam JCS, Perez-Roche T, Balasanyan V, Ortin M, Garcia G, Prieto E, Pham C, Gutierrez D, Castillo O, Masia B, Alejandre A, Bakkali M, Ciprés M, Esteban-Ibañez E, Fanlo-Zarazaga A, Gonzalez I, Gutiérrez-Luna IZK, Pan X, Pinilla J, Romero-Sanz M, Sanchez-Huerto V, Vilella M, Tinh NX, Hiep NX, and Zhang X
- Subjects
- Child, Humans, Child, Preschool, Eye-Tracking Technology, Fixation, Ocular, Multivariate Analysis, Sensation, Saccades
- Abstract
Although steady fixation is a key aspect of a proper visual function, it is only subjectively assessed in young and uncooperative children. In the present study, we characterize the development of fixational behavior throughout childhood in a large group of healthy children 5 months of age and up, recruited in five geographically diverse sites. In order to do it, we examined 802 healthy children from April 2019 to February 2020. Their oculomotor behavior was analyzed by means of an automated digital system, based on eye-tracking technology. Oculomotor outcomes were gaze stability, fixation stability and duration of fixations (for both long and short fixational tasks), and saccadic reaction time. Ninety-nine percent of all recruited children were successfully examined. Fixational and saccadic performance improved with age throughout childhood, with more pronounced changes during the first 2 years of life. Gaze and fixation tended to be more stable with age (p < 0.001 for most the outcomes), and saccades tended to be faster. In a multivariate analysis, including age and ethnicity as independent variables and adjusting by data quality, age was related with most fixational outcomes. Our automated digital system and eye-tracking data allow us to quantitatively describe the development of oculomotor control during childhood, assess visual fixation and saccadic performance in children 5 months of age and up, and provide a normative reference of fixational outcomes for clinical practice.
- Published
- 2022
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22. The Q-junction and the inflammatory response are critical pathological and therapeutic factors in CoQ deficiency.
- Author
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González-García P, Díaz-Casado ME, Hidalgo-Gutiérrez A, Jiménez-Sánchez L, Bakkali M, Barriocanal-Casado E, Escames G, Chiozzi RZ, Völlmy F, Zaal EA, Berkers CR, Heck AJR, and López LC
- Abstract
Defects in Coenzyme Q (CoQ) metabolism have been associated with primary mitochondrial disorders, neurodegenerative diseases and metabolic conditions. The consequences of CoQ deficiency have not been fully addressed, and effective treatment remains challenging. Here, we use mice with primary CoQ deficiency (Coq9
R239X ), and we demonstrate that CoQ deficiency profoundly alters the Q-junction, leading to extensive changes in the mitochondrial proteome and metabolism in the kidneys and, to a lesser extent, in the brain. CoQ deficiency also induces reactive gliosis, which mediates a neuroinflammatory response, both of which lead to an encephalopathic phenotype. Importantly, treatment with either vanillic acid (VA) or β-resorcylic acid (β-RA), two analogs of the natural precursor for CoQ biosynthesis, partially restores CoQ metabolism, particularly in the kidneys, and induces profound normalization of the mitochondrial proteome and metabolism, ultimately leading to reductions in gliosis, neuroinflammation and spongiosis and, consequently, reversing the phenotype. Together, these results provide key mechanistic insights into defects in CoQ metabolism and identify potential disease biomarkers. Furthermore, our findings clearly indicate that the use of analogs of the CoQ biosynthetic precursor is a promising alternative therapy for primary CoQ deficiency and has potential for use in the treatment of more common neurodegenerative and metabolic diseases that are associated with secondary CoQ deficiency., (Copyright © 2022 The Authors. Published by Elsevier B.V. All rights reserved.)- Published
- 2022
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23. Bacterial contamination of neglected hospital surfaces and equipment in an Algerian hospital: an important source of potential infection.
- Author
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Saadi S, Allem R, Sebaihia M, Merouane A, and Bakkali M
- Subjects
- Algeria, Gram-Negative Bacteria, Hospitals, Humans, RNA, Ribosomal, 16S genetics, Bacteria, Cross Infection microbiology
- Abstract
Hospital surfaces are heavily contaminated with bacteria, which are a potential source of nosocomial infections. This study was undertaken to identify bacterial communities isolated from neglected hospital surfaces after cleaning routine in a Algerian public hospital. Screening of bacterial contamination in patient bed (PB), reception land-line phones (TF), door handles (DH) and medical equipment (ME) during five months generated 108 inocula . Isolates obtained were identified based on biochemical characteristics and confirmed by analysis of 16S rRNA sequences. Statistical analysis was performed to reveal possible relationship between bacterial diversity and swabbed surfaces. Our findings showed a high prevalence of bacteria in various hospital surfaces, reaching (65.25%), where a highest contaminated surface was the PB (47.22%) and a lowest contaminated was TF (5.55%). Gram negative bacteria were the dominant group (62.03%) mainly represented by Entrobacteriaceae (42.59%), whereas Staphylococcus aureus belonging to Gram positive was the main expanded pathogen with (15.74%).
- Published
- 2022
- Full Text
- View/download PDF
24. Genetic diversity of indigenous guinea fowl ( Numida meleagris ) using microsatellite markers in northern Togo.
- Author
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Soara AE, Talaki E, Dayo GK, Houaga I, Tona K, and Bakkali M
- Subjects
- Animals, Togo, Poultry genetics, Microsatellite Repeats genetics, Genetic Variation genetics, Galliformes genetics
- Abstract
Indigenous guinea fowl is an important animal resource for improving rural household income. In order to provide molecular data for a sustainable management of this poultry resource, an assessment of the genetic diversity and phylogenic relationships was undertaken on seven guinea fowl phenotypes from two agroecological zones (Dry Savannah and Atakora) of Togo. Genotyping was carried out using 18 microsatellite markers on 94 individuals from Dry Savannah (59) and Atakora (35) zones. The results obtained showed a high genetic diversity, with six as an average alleles per locus and an observed heterozygosity of 0.512. However, the F
IS values varied from 0.047 (Lavender) to 0.257 (Albino), reflecting a deficit of heterozygotes, which suggests low to moderate inbreeding levels. The genetic distances between phenotypes are low, ranging from 0.0068 (Bonaparte-Pearl grey) to 0.1559 (Lavender-Albino), unlike the strong genetic identities that reflect a strong genetic similarity between the seven phenotypes of indigenous guinea fowl studied. These results indicate the existence of a single indigenous guinea fowl population, derived from three probable parental populations, with a high within population genetic diversity (phenotypic or agroecological zone). These results could be of use to conservation and improvement programs aiming at the maintenance and sustainable exploitation of this important socio-cultural and economic resource in Togo., Competing Interests: The authors declare there are no competing interests., (©2022 Soara et al.)- Published
- 2022
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