Journals / Turkish Journal of Gastroenterology / 2007 / Cilt: 18 - Sayı: 3

Güney İran’da sağlıklı çocuklarda yaş, cinsiyet, ABO kan grupları ve Rh durumuna göre anti-Helikobakter pilori ve anti-CagA antikor seroprevalansı

Seroprevalence of anti-Helicobacter pylori and anti-CagA antibodies among healthy children according to age, sex, ABO blood groups and Rh status in south-east of Iran

Pages
165–171
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Results: The overall seroprevalence of H. pylori infection was 46.6%.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: The aim of this study was to evaluate the seroprevalence of anti-H. pylori and anti-CagA antibodies in healthy children and to investigate those relation with age, sex, ABO blood groups and Rh status.
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Key Findings & Data:Methods: Serum samples from 386 children (187 males; 199 females), aged 1-15 years were tested for the presence of antibody to H. pylori and its virulence factor (CagA) by use of ELISA.
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Conclusion & Impact:Results: The overall seroprevalence of H. pylori infection was 46.6%.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Enzim bağlı immünosorbent tayini · Seroepidemiyolojik çalışmalar · Bakteriyel proteinler

Abstract

Objective: The aim of this study was to evaluate the seroprevalence of anti-H. pylori and anti-CagA antibodies in healthy children and to investigate those relation with age, sex, ABO blood groups and Rh status. Methods: Serum samples from 386 children (187 males; 199 females), aged 1-15 years were tested for the presence of antibody to H. pylori and its virulence factor (CagA) by use of ELISA. ABO blood grouping were also done by hemagglutination test . Results: The overall seroprevalence of H. pylori infection was 46.6%. The prevalence of anti-H. pylori antibody was significantly (p<0.05) higher in males (51.9%) compare to females (41.7%). The prevalence of anti-CagA antibody in infected children was 72.8%. Although, the prevalence of anti-CagA antibody was higher in males (78.4%) compared to females (66.3%), but the difference was not statistically significant (p=0.07). In age subgroups of 1-5 years, 6-10 years and 11-15 years, the prevalence of anti-H. pylori was 37.6%, 46.9% and 54.9% and regarding infected-children the prevalence and the mean titer of anti-CagA antibody were 63.8%, 75.94 Uarb/ml; 75%, 63.32 Uarb/ml and 79.45%, 57.11 Uarb/ml; respectively. The seroprevalence of anti-H. pylori and anti-CagA (in infected children) were 53% and 77.3% in blood group A, 50.5% and 64.7% in blood group B, 44.4% and 62.5% in blood group AB, 41.6 % and 76.8% in blood group O, 45.9% and 73% in Rh(+) phenotype and 54.84% and 70.6% in Rh(-) phenotype, respectively. The prevalence of both antibodies did not significantly differ between ABO blood groups or Rh status. However, within blood group A, the prevalence of anti-H. pylori and anti-CagA was significantly higher in males compare to females (p<0.05). Conclusion: These results showed that almost half of the children acquire H. pylori infection. Anti-CagA antibody are also common in the children. The seroprevalence of anti-H. pylori and anti-CagA antibodies were higher in males and increased with age. However, the mean titer of anti-CagA antibodies decreased with age, inversely. ABO blood groups may partly influence the prevalence of H. pylori infection, especially in male gender.

Özet

Amaç: Bu çalışmanın amacı sağlıklı çocuklarda anti-Helikobakter pilori (H. pilori) ve Anti sitotoksin assosiye antijen A (CagA) antikor prevalansını ve bunun cinsiyet, yaş, ABO kan grupları ve Rh subgruplarına ile ilişkisini araştırmaktır. Yöntem: 1-15 yafl arası 386 çocuktan (186 kız, 199 erkek) elde edilen serumlarda ELİSA yöntemiyle H. pilori’ye ve Cag-A’ya karşı antikor bakıldı. ABO kan grupları da hemaglutinasyon testiyle çalışıldı. Bulgular: H. pilori enfeksiyonu prevalansı %46.6 oranındaydı. Anti-H. pilori antikor prevalansı erkeklerde (%51.9) kızlardan (%41.7) daha yüksekti (p<0.05). Anti-Cag- A antikoru ise enfekte çocukların %72.8’inde pozitif saptandı. AntiCag-A antikoru da her ne kadar erkeklerde (%78.4) k›zlardan (%66.3) daha yüksek olsa da bu istatistiksel olarak anlamlı değildi (p=0.07). 1-5 yafl, 6-10 yafl ve 11-15 yaş gruplarında Anti-H. pilori antikor prevalansı sırasıyla %37.6, %46.9 ve %54.9 idi. Enfekte çocuklarda Anti-Cag-A antikoru prevalansı ve ortalama titresi sırasıyla %63.8, 75.4 Uarb/ml, %75 63.32 Uarb/ml ve %79.45 57.11 Uarb/ml’dir. A kan grubu olan çocuklarda Anti-H. pilori antikor ve AntiCag-A ab (enfekte çocuklarda) sırasıyla %53 ve %77.3, B kan grubunda %50.5 ve %64.7, AB kan grubunda %44.4 ve %62.5, 0 kan grubunda %41.6 ve %76.8, Rh (+) fenotiplerde %45.9 ve %73, Rh (-) fenotiplerde ise %54.84 ve %70.6 olarak tesbit edildi. Sonuç olarak ABO kan grupları ve Rh alt grupları arasında her bir antikor için anlamlı bir fark yoktu. Bununla birlikte A kan grubunda olanlarda her iki antikor için erkek prevalansı kızlardan daha yüksekti (p<0.05). Sonuç: Bu sonuçlar çocukların yarısının H. pilori ile enfekte olduğunu göstermektedir. Anti Cag-A antikoru da çocuklarda sıktır. Anti H. pilori ve Anti-Cag-A antikor prevalansı erkeklerde daha yüksektir ve yaşla artmaktadır. Bununla birlikte AntiCag-A anikor ortalama titreleri artan yaflla birlikte azalmaktadır. ABO kan gruplarını H. pilori prevalansını özellikle erkeklerde kısmen etkilemektedir.

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Cite This Article

JAFARZADEH, A., KAHANALI-AHMEDI, J., BAHRAMI, M., TAGHIPOUR, Z. (2007). Güney İran’da sağlıklı çocuklarda yaş, cinsiyet, ABO kan grupları ve Rh durumuna göre anti-Helikobakter pilori ve anti-CagA antikor seroprevalansı. Turkish Journal of Gastroenterology, Cilt: 18 - Sayı: 3, 165–171. https://ajindex.com/articles/411165

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