Papillard-Marechal S.,AP HP |
Sznajder M.,AP HP |
Hurtado-Nedelec M.,AP HP |
Alibay Y.,Laboratoire Of Biochimie |
And 11 more authors.
American Journal of Clinical Nutrition | Year: 2012
Background: Only a few studies based on small cohorts have been carried out on iron status in anorexia nervosa (AN) patients. Objective: The aim of this study was to evaluate the role of hepcidin in hyperferritinemia in AN adolescents. Design: Twenty-seven adolescents hospitalized for AN in the pediatric inpatient unit of Ambroise Paré Academic Hospital were enrolled in the study. The control group comprised 11 patients. Hematologic variables and markers of iron status, including serum hepcidin, were measured before and after nutritional rehabilitation. Results: The mean age of patients was 14.4 y. Except for 2 AN patients and 1 control patient, all patients presented normal hemoglobin, vitamin B-12, and folate concentrations. Markers of inflammation and cytokines were normal throughout the study. None of the muscular lysis markers were elevated. Most AN patients had normal serum iron concentrations on admission. Serum ferritin concentrations were significantly higher in patients than in control subjects (198 compared with 49 μg/L, respectively; P < 0.001). The median hepcidin concentration was significantly higher in AN patients than in the control group (186.5 compared with 39.5 μg/L, respectively; P = 0.002). There was a highly significant correlation between ferritinemia and serum hepcidin concentrations (P < 0.0001). After nutritional rehabilitation, a significant reduction was observed (P = 0.004) in serum ferritin. Serum hepcidin analyzed in a smaller number of patients also returned to within the normal range. Conclusions: Hepcidin and ferritin concentrations were higher in the serum of AN patients, without any evidence of iron overload or inflammation. These concentrations returned to normal after nutritional rehabilitation. These results suggest that nutritional stress induced by malnourishment in the hepatocyte could be yet another mechanism that regulates hepcidin. © 2012 American Society for Nutrition.
Benchekroun L.,Laboratoire Central Of Biochimie |
Mounya Bouabdillah,Laboratoire Central Of Biochimie |
Nouzha Jaouhar,Laboratoire Central Of Biochimie |
Fatiha Aoufir,Laboratoire Central Of Biochimie |
And 2 more authors.
Annales de Biologie Clinique | Year: 2011
ImmunoglobulinDmultiple myeloma is a rare form of multiple myeloma and affects a young population. It is characterized by its clinical severity and poor prognosis. We report four cases of multiple myeloma immunoglobulin D diagnosed and supported in the university hospital Center of Sale and Rabat-Morocco. We propose to study the epidemiological, clinical and biological characteristics of this rare type of monoclonal gammopathy. Through the observations reported, the clinical aspect of myeloma is characterized by the high frequency of extra-bone manifestations including impaired kidney function. The immunoglobulin D multiple myeloma is mainly type λ, the IgD κ is rare, the predominance of λ light chains could be explained by rearrangements at the immunoglobulin genes. Bence-Jones proteinuria is almost constant in the multiple myeloma immunoglobulin D, it is mainly type λ, reflecting excess production of light chains by plasma cells. The marrow is invaded by plasma cells in very different proportions of up to 95%. It's a clinical entity, difficult to diagnose, particularly when low homogeneous band on electrophoresis goes unnoticed for an eye inexperienced or when immune serum anti-IgD was not used during the immunotyping.