title: [Iron status with particular consideration of soluble transferrin receptors in children and youth with gastritis, with or without Helicobacter pylori infection].
abstract: Role of Helicobacter pylori infection in chronic gastritis and gastric and/or duodenal ulcers is well known. Simultaneously there are some articles in literature considering H. pylori as a cause of extra-gastrointestinal illnesses such as atopic dermatitis, chronic urticaria or acne rosacea, hypotrophy, Schoenlein-Henoch disease, atherosclerosis or hypochromic anaemia. The aim of the study. was to asses iron status in aspect of plasmatic transferrin receptors concentration among children and youth with chronic gastritis with or without Helicobacter pylori infection.
  
  
  METHODS
  Forty one patients were included as a study group. Range of age was 9-18 years. All patients were diagnosed due to chronic abdominal pains. There were 13 males and 28 females. Blood was collected from every patient for blood cell count, iron, transferrin and transferrin receptors concentration (sTfR) assessment before endoscopy of upper gastrointestinal tract.
  
  
  RESULTS
  Concentration of sTfR was higher than age norm among 29 (71%) of patients. Among patients with higher level of sTfR 20 (69%) had normal haemoglobin concentration and in this group 10 patients had H. pylori infection. During analysis of 12 patients with nornal level of sTfR normal haemoglobin concentration was found and among five of them H. pylori infection was stated. Among 21 patients without H. pylori infection 14 had normal level of sTfR and 7 had higher level of sTfR which means that 33% had hidden iron deficiency (involuntary of normal Hb concentrations). Among 15 of 20 patients with H. pylori infection level of sTfR was higher which means that 75% patients with infection had hidden iron deficiency (involuntary of normal Hb concentrations).
  
  
  CONCLUSIONS
  Level of plasmatic transferrin receptors can be good and sensitive indicator of iron deficiency and can be helpful in differential diagnosis of hypochromic anaemia and anaemia caused by chronic illness including chronic gastritis with Helicobacter pylori infection.
authors.affiliation: Uniwersytet Mikołaja Kopernika w Toruniu, Collegium Medicum w Bydgoszczy. klped@cm.umk.pl
authors.forename: Grazyna
authors.initials: G
authors.lastname: Mierzwa
authors.forename: Beata
authors.initials: B
authors.lastname: Augustyńska
authors.forename: Mieczysława
authors.initials: M
authors.lastname: Czerwionka-Szaflarska
authors.forename: Tomasz
authors.initials: T
authors.lastname: Tyrakowski
mesh_terms: D000293:Adolescent; D018798:Anemia, Iron-Deficiency / Q000097:blood* / Q000175:diagnosis* / Q000209:etiology; D015415:Biomarkers / Q000097:blood; D002648:Child; D002908:Chronic Disease; D005260:Female; D005756:Gastritis / Q000097:blood* / Q000150:complications; D016481:Helicobacter Infections / Q000097:blood* / Q000150:complications; D016480:Helicobacter pylori / Q000302:isolation & purification*; D006452:Hemoglobinometry; D006801:Humans; D007501:Iron / Q000097:blood*; D019189:Iron Metabolism Disorders / Q000097:blood / Q000382:microbiology; D008297:Male; D011990:Receptors, Transferrin / Q000097:blood*
chemical_list: D015415:Biomarkers; D011990:Receptors, Transferrin; D007501:Iron