Helicobacter pylori, helminth infections and growth: a cross-sectional study in a high prevalence population

Sarah Cherian1, David Forbes, Frank Sanfilippo

  • 1School of Paediatrics and Child Health, University of Western Australia, Perth, Western Australia, Australia.

Insights

Helicobacter pylori (H. pylori) and helminth infections are common in African refugee children but do not impact growth. Further studies are needed to understand long-term effects of H. pylori on child development.

Area of Science:

  • Pediatric infectious diseases
  • Global child health
  • Nutritional anthropometry

Background:

  • Childhood Helicobacter pylori (H. pylori) infection is common, with potential growth impacts, but data are inconsistent.
  • African refugee children often experience high burdens of H. pylori and helminth infections.
  • Understanding the relationship between these infections and child growth is crucial for public health.

Purpose of the Study:

  • To investigate the association between H. pylori and helminth infections and growth parameters in a cohort of African refugee children.
  • To determine if H. pylori infection is linked to growth restriction in this pediatric population.

Main Methods:

  • A cross-sectional study was conducted on African refugee children (<16 years) resettling in Australia.
  • H. pylori infection was diagnosed using fecal monoclonal antigen enzyme immunoassay testing (MFAT).
  • Growth restriction was defined as anthropometric measures below the fifth percentile for age and gender.

Main Results:

  • H. pylori infection prevalence was high (81.9%) among the children studied.
  • No significant adverse effects of H. pylori on body mass index or other anthropometric measurements were found after age adjustment.
  • Helminth infections (41.8%) were common but not associated with reduced growth or H. pylori co-infection.

Conclusions:

  • Both H. pylori and helminth infections are highly prevalent in this cohort of African refugee children.
  • Neither infection was found to be associated with growth restriction in the studied children.
  • Longitudinal studies are recommended to assess the long-term impact of H. pylori on childhood growth velocity.
Abstract

Related Concept Videos

Gastritis II: Pathophysiology01:26

Gastritis II: Pathophysiology

The pathophysiology of gastritis begins with the colonization of the stomach lining by Helicobacter pylori (H. pylori). This bacterium spreads mainly via the oral-oral route through saliva or shared utensils, and can also be transmitted in overcrowded or unhygienic environments through contaminated water, despite its brief survival outside the body.ColonizationOnce ingested, H. pylori enters the stomach and begins colonization by navigating through the mucus layer lining the stomach wall. It...
Peptic Ulcer01:27

Peptic Ulcer

Peptic ulcers are erosive lesions of the gastric or duodenal lining, most commonly caused by Helicobacter pylori infection. This Gram-negative, helical bacterium has adapted to survive the stomach’s acidic environment by producing urease, which converts urea into ammonia and carbon dioxide. The ammonia neutralizes gastric acid in the bacterium’s immediate environment, allowing colonization of the gastric mucosa. H. pylori attaches to mucus-secreting epithelial cells, penetrates the mucus...
Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies01:28

Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies

Peptic ulcer disease (PUD) presents with diverse symptoms depending on the location and severity of the ulcer. Clinical manifestations of peptic ulcer include dull pain and a burning sensation in the mid-epigastric region.
Few clinical manifestations differentiate gastric ulcers from duodenal ulcers. Distinctions in the location, timing, and pain relief are crucial for healthcare providers in differentiating between gastric and duodenal ulcers during clinical assessments.
Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy01:16

Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy

Helicobacter pylori, a resilient gram-negative bacterium, can thrive in the stomach's harsh, acidic environment. Infection with H. pylori leads to a cascade of events within the stomach lining. One of the critical disruptions caused by this bacterium is the interference with somatostatin production, a hormone responsible for regulating acid secretion. This interference tips the balance, escalating acid secretion and diminishing bicarbonate levels. This imbalance compromises the defensive...
Microbiota of the Stomach and Small Intestine01:27

Microbiota of the Stomach and Small Intestine

The human gastrointestinal (GI) tract is characterized by distinct physicochemical conditions that shape its microbial communities. Among these, the stomach presents a particularly challenging environment for microbial colonization due to its highly acidic pH, ranging from 1 to 3. This extreme acidity effectively limits microbial density. However, certain acid-tolerant microorganisms are capable of surviving in this niche. Notably, Helicobacter pylori can colonize the gastric mucosa,...
Amebiasis01:28

Amebiasis

Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...