title: Serum leptin levels in children with acute viral hepatitis A.
abstract: OBJECTIVE
  In acute viral hepatitis A (AVH-A), involvement of the liver is through cytotoxic cells and cytokine levels are increased Immune response of the host determines the severity of the disease. Leptin stimulates cytokines, therefore, the authors hypothesized that the relationship between leptin and cellular immunity might cause different clinical presentations of the disease.
  
  
  METHODS
  Twenty-eight children with AVH-A and 10 healthy children formed the basis of the study. Serum leptin, C-reactive protein (CRP) and alpha-1-antitrypsin (A1AT) levels were determined
  
  
  RESULTS
  There was significant positive correlation between body mass index (BMI) and leptin levels both in patients and controls (p = 0.003 and p = 0.001 respectively). No significant difference in serum leptin, CRP or A1AT levels between patients and controls was detected (p > 0.05). Presence of icterus or fulminant hepatic failure (FHF) did not affect serum leptin level (p > 0.05). Mean A1AT level was significantly higher in children with FHF (p < 0.05). On the 30th day of admission, mean BMI, weight and leptin levels increased (p < 0.01, p < 0.01 and p < 0.05 respectively) and mean A1AT level decreased (p < 0.01).
  
  
  CONCLUSIONS
  Leptin levels are not altered in children with AVH-A. In the convalescence period, leptin increased parallel to BMI. It is suggested that expected increment in leptin due to inflammation might be balanced with the decrease due to loss of appetite during acute illness or it might be entirely due to loss of production.
authors: Department of Paediatrics, Faculty of Medicine, Atatürk University, Erzurum, Turkey.
authors: I
authors: I
authors: Caner
authors: M A
authors: MA
authors: Selimoglu
authors: H
authors: H
authors: Yazgi
authors: V
authors: V
authors: Ertekin
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D015992:Body Mass Index; D002097:C-Reactive Protein; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D005260:Female; D006506:Hepatitis A / Q000097:blood* / Q000503:physiopathology; D006801:Humans; D007223:Infant; D007249:Inflammation / Q000097:blood / Q000503:physiopathology; D020738:Leptin / Q000097:blood*; D008099:Liver; D008297:Male; D000515:alpha 1-Antitrypsin
chemical_list: D020738:Leptin; D000515:alpha 1-Antitrypsin; D002097:C-Reactive Protein