Publications by authors named "Mohamed Barkaoui"

Background: Morocco faces a substantial public health challenge due to diabetes mellitus, affecting 12.4% of adults in 2023. The Moroccan population makes extensive use of phytotherapy and traditional medicine to address the difficulties this chronic condition poses.

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Different tests are used to evaluate the aerobic capacity of a person. This study aims to investigate the gender and Body Mass Index (BMI) difference in aerobic capacity measured by using shuttle and Spartacus test. The study was conducted on 230 high school students (135 girls and 95 boys) followed their study in public establishment in kenitra city (Morocco).

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Background: Chronic obstructive pulmonary disease (COPD) is a major public health problem. The present study aims to provide a global and regional estimate of the prevalence of COPD based on spirometry according to the two most widely used diagnostic criteria of COPD: fixed ratio (FR) and lower limit of normal (LLN).

Methods: We conducted a systematic review of the literature according to PRISMA guidelines.

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Introduction: tuberculosis is a public health problem in Morocco. This study aims to examine the epidemiological profile as well as the evolutionary and diagnostic features of tuberculosis in Settat, Morocco.

Methods: we conducted a retrospective descriptive and analytical study of data from the medical records of TB patients managed at the Diagnostic Centre for Tuberculosis and Respiratory Diseases in Settat, Morocco from 1 January 2015 to 31 December 2019.

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Background: The somatic BRAF mutation occurs in 38-64% of pediatric cases of Langerhans cell histiocytosis (LCH). Vemurafenib (VMF), a BRAF inhibitor, was approved for refractory BRAF mutated LCH. In adults, VMF causes frequent cutaneous adverse events (CAE) including skin tumors (squamous cell carcinomas, melanomas), but little is known in children.

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Article Synopsis
  • This study analyzed lung CT findings in children with pulmonary Langerhans cell histiocytosis (PLCH) to assess previously established scoring systems used for adults.
  • Out of 175 children with PLCH, 60 were selected for review, revealing that at diagnosis, many of the children had nodules (63%) and cysts (53%), with an increase in both findings as the disease progressed.
  • The research concluded that the characteristics of PLCH in children mirror those in adults, and the adult CT scoring systems could be effectively utilized for pediatric cases, noting that lesions often occur at the costophrenic angles and that alveolar consolidation is potentially atypical in this age group.
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Purpose: Off-label use of vemurafenib (VMF) to treat mutation-positive, refractory, childhood Langerhans cell histiocytosis (LCH) was evaluated.

Patients And Methods: Fifty-four patients from 12 countries took VMF 20 mg/kg/d. They were classified according to risk organ involvement: liver, spleen, and/or blood cytopenia.

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The French national cohort of children with Langerhans cell histiocytosis (LCH) has included 1478 patients since it was established in 1983. LCH therapeutic strategies substantially changed in 1998, so we have divided the cohort into two 15-year periods. Starting in 1998, therapy duration increased from 6 to 12 months, repeated induction therapy was performed in cases showing a poor response to the first induction with vinblastine and steroids, and refractory disease in a risk organ (RO+) was treated with cladribine and cytarabine.

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An international phase 2 study combining cladribine and cytarabine (Ara-C) was initiated for patients with refractory, risk-organ-positive Langerhans cell histiocytosis (LCH) in 2005. The protocol, comprising at least two 5-day courses of Ara-C (1 g/m(2) per day) plus cladribine (9 mg/m(2) per day) followed by maintenance therapy, was administered to 27 patients (median age at diagnosis, 0.7 years; median follow-up, 5.

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Background: Mediastinal involvement (MI) in Langerhans cell histiocytosis (LCH) has been rarely reported. Here, we describe the clinical, radiological, and biological presentation, and the outcome of childhood LCH with MI.

Method: From the French LCH register, which includes 1,423 patients aged less than 18 years, we retrieved the medical charts of patients with mediastinal enlargement detected on chest X-rays.

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Background: Vinblastine (VBL) is the standard treatment for systemic Langerhans cell histiocytosis (LCH), but little is known about its efficacy in central nervous system (CNS) mass lesions.

Methods: A retrospective chart review was conducted. Twenty patients from the French LCH Study Group register met the inclusion criteria.

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Context: Isolated central diabetes insipidus (CDI) can be the first manifestation of Langerhans cell histiocytosis (LCH), creating diagnostic dilemmas such as dysgerminoma and other inflammatory lesions.

Method: In 2010, the French national LCH registry had enrolled 1236 LCH patients under 18 yr of age. Isolated CDI was the initial presentation of LCH in 26 patients.

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Introduction: Childhood Langerhans cell histiocytosis (LCH) is a rare and poorly understood multisystemic disease. The French National Registry of Childhood Hematopoietic Malignancies (NRCH) has recorded LCH cases of all subtypes since 2000. The present study describes the data on LCH collected on a national scale over a 5-year period.

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Background And Objectives: The two main complications of severe chronic neutropenia are fatal sepsis and myelodysplasia/acute leukemia (MDS/AL). Granulocyte colony-stimulating factor (G-CSF) therapy has significantly reduced the frequency and severity of infections, but its possible influence on the risk of malignancy is not known.

Design And Methods: The French Severe Chronic Neutropenia (SCN) Registry has prospectively collected data since 1994 on 231 patients with various forms of SCN, namely severe congenital neutropenia (n=101), cyclic neutropenia (n=60), glycogen storage disease type Ib (GSDIb) (n=15) and Shwachman-Diamond syndrome (SDS)(n=55).

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Heterozygous mutations of the gene encoding neutrophil elastase (ELA2) have been associated with cyclic neutropenia (CN) and severe congenital neutropenia (SCN). To date, 30 different mutations have been reported, but no correlation has been found with the degree of neutropenia. To address this issue, we analyzed the clinical, hematologic, and molecular characteristics of 81 unrelated patients with SCN (n = 54) or CN (n = 27).

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We retrospectively studied 61 patients with GH deficiency (GHD), identified among 589 patients with Langerhans cell histiocytosis (LCH) enrolled in a nationwide survey between 1993 and 2001. Overall, 141 patients in the survey developed diabetes insipidus. The median follow-up of the 61 patients with GHD was 12 yr.

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