Publications by authors named "Indou Deme-Ly"

Background: Malnutrition in infants aged <6 mo (u6m) is poorly identified and managed in many countries, increasing the risk of poor growth and development. Addressing this gap, 2023 WHO malnutrition guidelines recommend assessment, classification and treatment at primary care level. This study aimed to assess primary healthcare facility readiness for nutritional care in infants u6m.

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The hydroxyurea is a save, affordable and essential medicine for sickle cell disease (SCD), reducing painful crises and mortality. To foster the prescription of hydroxyurea for patients with SCD in sub-Saharan African countries, the scientific advisory board of Drep.Afrique, a non-governmental organization dedicated to SCD in Africa, has developed a therapeutic guideline well suited to conditions on the ground.

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The degree of anaemia in sickle cell disease (SCD) is a well-known contributor to morbidity and mortality. We aimed to explore the factors affecting haemoglobin (Hb) level in African SCD patients, considering haemolysis biomarkers (LDH and bilirubin level, and reticulocyte count), leucocyte and platelet counts and socio-demographic characteristics (gender, age group, country of residence and BMI). The research was part of the CADRE multinational cohort and involved 3699 SCD patients living in Mali, Senegal, Ivory Coast, Democratic Republic of Congo, Gabon and Cameroon: 2936 SS/Sβ0, 587 SC and 176 Sβ + patients with median Hb level of 8, 11.

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Sickle cell anemia (SCA) is caused by a single point variation in the β-globin gene (HBB): c.20A> T (p.Glu7Val), in homozygous state.

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Nutritional vulnerability under the age of 6 months is prevalent in low- and middle-income countries with 20.1% infants underweight, 21.3% wasted and 17.

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Objective: Sickle cell anemia (SCA) can cause substantial kidney dysfunction resulting in sickle cell nephropathy, which may be affected by the presence of modifier genes. This study evaluates the effects of some modifier genes on sickle cell nephropathy.

Methods: Patients living with SCA were recruited.

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Background: Many children with sickle cell disease living in sub-Saharan Africa die before reaching age 5 years. We estimate the child mortality associated with sickle cell anaemia using an indirect approach to overcome the absence of systematic screening at birth.

Methods: We did a retrospective, multicentre, case-control study in five countries in sub-Saharan Africa (Burkina Faso, Democratic Republic of the Congo, Côte d'Ivoire, Mali, and Senegal).

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Sickle cell disease (SCD), the most common monogenic disease worldwide, is marked by a phenotypic variability that is, to date, only partially understood. Because inflammation plays a major role in SCD pathophysiology, we hypothesized that single nucleotide polymorphisms (SNP) in genes encoding functionally important inflammatory proteins might modulate the occurrence of SCD complications. We assessed the association between 20 SNPs in genes encoding Toll-like receptors (TLR), NK cell receptors (NKG), histocompatibility leukocyte antigens (HLA), major histocompatibility complex class I polypeptide-related sequence A (MICA) and cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4), and the occurrence of six SCD clinical complications (stroke, acute chest syndrome (ACS), leg ulcers, cholelithiasis, osteonecrosis, or retinopathy).

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Article Synopsis
  • Oxidative stress is linked to sickle cell anemia (SCA) and is influenced by genetic factors like alpha-thalassemia, which appears to reduce certain oxidative stress indicators in affected children.
  • A study of 301 Senegalese SCA children revealed that oxidative stress biomarkers (like CAT and MDA) were significantly different compared to healthy controls, with specific gene variants affecting these levels and clinical severity of the disease.
  • Notably, children with earlier complications had different antioxidant enzyme levels, suggesting a complex relationship between genetics, oxidative stress, and SCA severity.
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Background: Our objective was to investigate the combined and differential effects of alpha-thalassemia -3.7 kb deletion and HbF-promoting quantitative trait loci (HbF-QTL) in Senegalese hydroxyurea (HU)-free children and young adults with sickle cell anemia (SCA).

Procedure: Steady-state biological parameters and vaso-occlusive crises (VOC) requiring emergency admission were recorded over a 2-year period in 301 children with SCA.

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Background: Treatment of acute malnutrition in infants under 6 months is a relevant topic regarding the global problem of maternal and child malnutrition. While treatment for older age groups has shifted more towards an outpatient, community based approach, young infants are mostly treated in hospital. This study aims to describe barriers and facilitators for outpatient and inpatient treatment of malnourished infants under 6 months in Senegal.

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Adrenocorticotropic hormone (ACTH) insensitivity syndrome is one of the rare causes of adrenal insufficiency in children. All described inherited ACTH insensitivity forms are of autosomal recessive origin. In our resource-poor Countries, many of these rare diseases are ignored or not diagnosed due to inadequate technical equipments.

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Several studies conducted in America or Europe have described major cardiac remodeling and diastolic dysfunction in patients with sickle cell disease (SCD). We aimed at assessing cardiac involvement in SCD in sub-Saharan Africa where SCD is the most prevalent. In Cameroon, Mali and Senegal, SCD patients and healthy controls of the CADRE study underwent transthoracic echocardiography if aged ≥10 years.

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Article Synopsis
  • - Growth failure (GF) in children with sickle cell disease (SCD) is prevalent in sub-Saharan Africa, affecting over 50% of specific SCD phenotypes, compared to controls.
  • - The study found that factors like lower parental education, male gender, and specific SCD types (HbSS and HbSβ) are positively linked to GF, while no connection to clinical complications was observed.
  • - In this context, GF is particularly common during adolescence and shows associations with haemolysis and microalbuminuria, indicating a need for targeted interventions.
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Sickle cell disease poses a public health problem in Senegal. It mainly affects children and adolescents. This study aimed to determine the epidemiological, clinical and hematological profiles of homozygous (SS) sickle cell disease in a cohort of children followed-up at the Peace Hospital in Ziguinchor.

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Introduction: Expanded programme on immunizations in resource-limited settings currently measure vaccination coverage defined as the proportion of children aged 12-23 months that have completed their vaccination. However, this indicator does not address the important question of when the scheduled vaccines were administered. We assessed the determinants of timely immunization to help the national EPI program manage vaccine-preventable diseases and impact positively on child survival in Senegal.

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Article Synopsis
  • The study examines the relationship between steady-state hemolysis and vascular complications in sickle cell disease (SCD) patients from West and Central Africa, highlighting the need for context-specific research beyond North American data.
  • Researchers analyzed 2,407 SCD patients using a composite index for hemolytic intensity to assess complications like tricuspid regurgitant jet velocity (TRV), microalbuminuria, and leg ulcers.
  • Findings suggest that severe anemia is linked to certain vascular issues, but increased hemolysis does not independently explain these complications, indicating that other factors, such as nutrition and infections, may contribute to SCD-related vasculopathy.
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Sickle cell disease is a genetic disorder with a large variability in the pattern and severity of clinical manifestations. Different genetic modulators have been identified but very few epidemiologic data are available on these modifier genes in Senegal. This study aimed to determine their prevalence in a Senegalese sickle cell disease pediatric population.

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Child hypothyroidism has been little studied in Senegal. The aim of this study was to evaluate the epidemiological, diagnostic and evolutionary aspects of congenital hypothyroidism. We conducted a descriptive-analytical retrospective study of all children treated for congenital hypothyroidism at the Albert-Royer National Children's Hospital Center over the period from 2001 to 2014 (14 years).

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Hemolytic-uremic syndrome (HUS) is a common cause of organic acute renal failure (ARF) in children. It is a progressive complication of acute gastroenteritis (AGE), especially caused by Escherichia coli in children. This study aimed to describe the clinical, therapeutic and evolutionary aspects of this affection in four children.

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Background: Although a blood genetic disease, sickle cell disease (SCD) leads to a chronic vasculopathy with multiple organ involvement. We assessed arterial stiffness in SCD patients and looked for associations between arterial stiffness and SCD-related vascular complications.

Methods: The CADRE (Coeur Artères et Drepanocytose, ie, Heart Arteries and Sickle Cell Disease) study prospectively recruited pediatric and adult SCD patients and healthy controls in Cameroon, Ivory Coast, Gabon, Mali, and Senegal.

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Background: Chronic kidney disease is one of the leading causes of mortality in patients with sickle cell disease. However, it has been almost exclusively studied in patients with the SS phenotype and in high-income countries, despite more than 80% of patients living in Africa. We looked for the determinants of glomerulopathy in a multinational cohort of patients with sickle cell disease of different phenotypes in sub-Saharan Africa.

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