Publications by authors named "Benomar M"

Article Synopsis
  • * A study along the Mediterranean coasts of Morocco assessed the concentrations of PAHs in marine sediments and the bivalve species Callista chione, finding that PAH levels varied and were generally higher as one moves toward the northwest coast, near the Strait of Gibraltar.
  • * The research indicated low ecological risks from PAH exposure based on sediment quality guidelines and health risk assessments; however, ongoing monitoring of PAHs in marine organisms is recommended to ensure safe seafood consumption.
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  • - The study introduces the Zebra II system, an advanced device designed for electrocardiogram (ECG) analysis in zebrafish, which includes features like temperature sensors and a perfusion system for better control during experiments.
  • - It successfully extends ECG data collection time to 1 hour, allowing for more detailed analysis of the effects of anesthetics and temperature on zebrafish heart activity, compared to the traditional 5-minute limit.
  • - The cloud-based automated analysis system enables simultaneous examination of four zebrafish, enhancing the efficiency of drug testing and cardiovascular research, and improving the detection of drug-induced heart issues in these models.
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This survey focuses on an environmental parasitology study by investigating Polycyclic Aromatic Hydrocarbons (PAH) bioaccumulation and the occurrence of Anisakis spp. on common anchovies collected from Moroccan coasts over 9 months through chemical (PAH) and Biological (Biometrics and parasitic) analysis. Obtained results were statistically analyzed and human health risks from anchovies consumption were assessed.

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Plastic pollution is both a societal and environmental problem and citizen science has shown to be a useful tool to engage both the public and professionals in addressing it. However, knowledge on the educational and behavioral impacts of citizen science projects focusing on marine litter remains limited. Our preregistered study investigates the impact of the citizen science project (COLLECT) on the participants' ocean literacy, pro-environmental intentions and attitudes, well-being, and nature connectedness, using a pretest-posttest design.

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Purpose: The purpose of this study was to perform a systematic review of the literature on the diagnostic performance, in independent test cohorts, of artificial intelligence (AI)-based algorithms aimed at characterizing/detecting prostate cancer on magnetic resonance imaging (MRI).

Materials And Methods: Medline, Embase and Web of Science were searched for studies published between January 2018 and September 2022, using a histological reference standard, and assessing prostate cancer characterization/detection by AI-based MRI algorithms in test cohorts composed of more than 40 patients and with at least one of the following independency criteria as compared to the training cohort: different institution, different population type, different MRI vendor, different magnetic field strength or strict temporal splitting.

Results: Thirty-five studies were selected.

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Despite the growing interest in the use of electroencephalogram (EEG) signals as a potential biometric for subject identification and the recent advances in the use of deep learning (DL) models to study neurological signals, such as electrocardiogram (ECG), electroencephalogram (EEG), electroretinogram (ERG), and electromyogram (EMG), there has been a lack of exploration in the use of state-of-the-art DL models for EEG-based subject identification tasks owing to the high variability in EEG features across sessions for an individual subject. In this paper, we explore the use of state-of-the-art DL models such as ResNet, Inception, and EEGNet to realize EEG-based biometrics on the BED dataset, which contains EEG recordings from 21 individuals. We obtain promising results with an accuracy of 63.

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Background: Failed kidney transplant is becoming a frequent cause of dialysis initiation. Although studies have shown no difference between peritoneal dialysis (PD) and haemodialysis (HD) in terms of patients and technique survival, PD remains quite rarely used in this condition. Studies in larger multicentre matched cohorts are missing.

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The objective of this study was to determine both the prevalence of white-coat effect and white-coat hypertension (WCH) and which selected clinical variables were predictors of WCH. A total of 2462 patients underwent ambulatory blood pressure monitoring either in borderline hypertension (group 1) or for assessment of antihypertensive treatment (group 2) or for hypotension (group 3). In the overall population 33.

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Using Co-L2,3 and O-K x-ray absorption spectroscopy, we reveal that the charge ordering in La1.5Sr0.5CoO4 involves high spin (S=3/2) Co2+ and low spin (S=0) Co3+ ions.

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Spin correlations in La2-xSrxCoO4 (0.3 < or = x < or = 0.6) have been studied by neutron scattering.

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Unlabelled: High blood pressure (BP) is a major cause of cardiovascular disease and primary hypertension is a frequent pathological condition. Sympathetic hyperactivity may be involved in primary hypertension. The purpose of this study was mainly to evaluate sympathetic activity when performing cardiovascular autonomic profile examination in patients with primary hypertension in comparison with normotensive subjects.

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Postural orthostatic tachycardia syndrome (POTS) is an inadequately understood pathology because its diagnosis is not based on the conventional methods of investigation. The orthostatic test allows to make the diagnosis easily. The objective of this study is to determine cardiovascular autonomic reflexes of 70 patients having POTS.

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Background: To evaluate the feasibility of mitral valve repair in patients with infective endocarditis (IE).

Methods And Results: Forty-seven patients operated for mitral endocarditis between 1995 and 2005; 21 underwent mitral valve repair. The repair was performed for acute endocarditis in seven patients at a median of 14 days after the onset of treatment and 14 patients for healed endocarditis after a median of six months.

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Objective: To appreciate short and midterm results of patients after surgical closure of the ventricular septal defect.

Material And Methods: The study is retrospective and took place in the department of cardiovascular surgery "B", Ibn-Sina hospital, Rabat, Morocco. Between 1995 and 2005, 30 patients underwent a surgical closure of ventricular septal defect.

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Article Synopsis
  • Hyperhomocyteinemia (HHcy) is linked to increased risk of coronary artery disease (CAD), and specific genetic mutations in MTHFR, MTR, and MTRR impact homocysteine levels.
  • CAD patients displayed significantly higher total homocysteine levels compared to controls, with smokers also showing elevated levels and a greater risk for CAD.
  • The MTHFR 1298C allele was more common in CAD patients and associated with risk for HHcy, while no significant differences were found for other mutations in MTR and MTRR.
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Among 1146 patients undergoing percutaneous mitral valvuloplasty for symptomatic mitral stenosis, 8 (4 men and women) were at high risk for surgery on the basis of the New York Heart Association functional class IV (n=8), severe pulmonary hypertension (n=5). All these patients aged 30+/-23.6 years had signs of right heart failure, high echocardiographic score (9.

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Aortic regurgitation caused by non-specific aortitis is relatively rare, and is now considered as an important risk factor related to mortality. Aortic valve replacement surgery is the only curative treatment. Aneurismal dilatation of the ascending thoracic aorta associated with aortic regurgitation is a rare involvement in Takayasu, there are many difficult problems in surgical treatment of this lesion, because of its inflammatory nature, so steroid therapy before and after surgery is therefore vital.

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Increased plasma total homocysteine (tHcy) levels have been shown to be a risk factor for coronary artery disease (CAD). The common methylenetetrahydrofolate reductase C677T (MTHFR C677T) polymorphism has been reported to be a strong predictor of mild hyperhomocysteinaemia (HHcy). We assessed whether this mutation was associated with increased risk of CAD and plasma levels of tHcy.

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Objective: The Deep-Breathing (DB) test is of major importance in the evaluation of the vagal response (VR). We applied this test to assess the VR in a group of subjects with functional (neurological, cardiovascular or digestive) symptoms unexplained by standard cardiac examination and to compare it with the VR measured in a group of healthy controls.

Patients And Methods: The following groups were considered: a C-Group of healthy controls (n=50), and three groups each consisting of 50 symptomatic patients (S1, S2, S3).

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Objectives: The purpose of our study is to illustrate by five original observations the various situations where the stenting of the left main coronary artery can be proposed in alternative to aortocoronary bridging with encouraging results in short- and long-term.

Materials And Methods: We report a retrospective study relating to five cases with left main disease treated by stenting between 1996 and 2002 at our institution. In two cases the left main stem was unprotected.

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The magnon dispersion in the charge, orbital, and spin ordered phase in La1/2Sr3/2MnO4 has been studied by means of inelastic neutron scattering. We find excellent agreement with a magnetic interaction model based on the CE-type superstructure. The magnetic excitations are dominated by ferromagnetic exchange parameters revealing a nearly one-dimensional character at high energies.

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Introduction: Lutembacher syndrome refers to the rare combination of congenital atrial septal defect and acquired mitral stenosis. This condition is usually treated surgically by mitral valve operation with concomitant closure of the atrial septal defect.

Materials And Methods: Between 1993 and 2003, 4 patients with congenital Lutembacher syndrome had percutaneous mitral commissurotomy without closure of the atrial septal defect at our institution.

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