Serum levels of iron parameters and IL-17 in children with Helicobacter pylori infection compared to healthy group

Document Type : Short Communication


1 Department of Microbiology, Faculty of Basic Sciencs, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran

2 Department of Microbiology, Faculty of Paramedical Sciences, Jondi Shapour University, Ahvaz, Iran


Helicobacter pylori is related to iron deficiency anemia (IDA) and inflammatory responses causing gastric and duodenal ulcer and carcinoma. Moreover, it leads to deficiency of factors associated with iron adsorption and transfer. In the present study, we recruited 100 children (50 infected with H. pylori and 50 controls) aged 3-14 years old (40% male and 60% female) to evaluate the effect of H. pylori on anemia and some of its related factors (i.e., total iron binding capacity [TIBC], ferritin, and transferrin) and also the amount of IL-17 expression. For the assessment of H. pylori, Euroimmune (Germany) kit was used for the ELISA test according to the instructions of manufacturer. Furthermore, for the measurement of IL-17 level, ELISA test (IBL commercial specific kit, Germany) was employed. The mean iron levels in the control and infected groups were 81.5 mg/dl and 43 mg/dl, respectively, which showed a significant difference between the two groups (P=0.007). The mean levels of transferrin in the control and infected children were 291 mg/dl and 249 mg/dl respectively, demonstrating a significant difference (P=0.008). Moreover, the ferritin levels were 64.5 ng/dl and 14 ng/dl in the control and infected groups, respectively (P=0.001). The TIBC levels were 329 mg/dl and 301 mg/dl, respectively (P=0.86). The mean levels of IL-17 in the healthy and infected children were 3.93±0.93 pg/ml and 8.887±1.46 pg/ml, respectively (P=0.002). Our findings revealed that H. pylori can play a role in anemia and induction of inflammatory responses through reducing iron-related parameters and significantly enhancing IL-17 level among the infected children compared to the healthy group.


Main Subjects

Article Title [French]

Comparaison des paramètres du bilan martial et du taux d’IL-17 entre les sérums d’enfants infectés et non-infectés par l’Helicobacterpylori

Abstract [French]

L’Helicobacter pyloriest responsable d’anémies ferriprives et de réponses inflammatoires à l’origine d’ulcères gastriques ou duodénales et de carcinomes. De plus, cette infection peut également être associée à des déficiences dans l’absorption et le transfert ferriques. Dans cette étude, 100 enfants (50 infectés et 50 non-infectés par l’ H. pylori) âgés de 3 à 14 ans ont été sélectionnés (40% de garçons pour 60%de filles) afin d’évaluer l’effet de l’H. pylorisur l’anémie et ses facteurs associés (total iron binding capacity [TIBC], ferritine et transferrine) ainsi que sur le taux d’expression de l’IL-17. La présence d’H. pylori a été évaluée par le kit ELISA Euroimmune (Allemagne) selon les instructions du fabricant. Un test ELISA commercial (IBL commercial specific kit, Allemagne) a été employé pour l’évaluation du taux d’IL-17. Le niveau moyen de fer sérique variait de façon significative entre les deux groupes témoin et infecté (P=0,007) et tombait de 81.5 mg/dl à 43 mg/dl. Le niveau moyen de transferrine des groupes témoins et infectés s’élevait respectivement à 291 mg/dl et 249 mg/dl et montrait une différence significative (P=0.008). De plus, le taux de ferritine diminuait également dans le groupe infecté (14 ng/dl) comparé au groupe témoin (64.5 ng/dl). Le taux de TIBC des groupes témoin et infecté était respectivement de 329 mg/dl et 301 mg/dl (P=0.86). Une augmentation significative (P=0.002) du taux moyen d’IL-17 a été observée dans le groupe infecté (8.887±1.46 pg/ml) comparé au groupe témoin (3.93±0.93 pg/ml). Nos résulats ont donc révélé que l’ H. pylori peut être à l’origine d’anémie et de réponses inflammatoires en réduisant paramètres ferriques et en augmentant de façon significative le taux d’expression d’IL-17 chez les enfants infectés.

Keywords [French]

  • Helicobacter pylori
  • Anémie
  • inflammation
  • IL-17
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