Detection of viable <i>Helicobacter pylori</i> inside free‐living amoebae in wastewater and drinking water samples from Eastern Spain

Moreno-Mesonero, Laura; Moreno, Yolanda; Alonso, J.L.; Ferrús, María Antonia

doi:10.1111/1462-2920.13856

Cited by 30 publications

(18 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Variable rates were reported in several studies all over the world: 46.9% in Korea [30], 23% in Nicaragua [31], 22.79% in Brazil [32], 29.4% and 22% in Sivas, Turkey [2,28], 89% in the United Kingdom [33] and 79% in the United States of America [5]. However, nearly similar results compared to our results were obtained on examination of household tap water samples in Eastern Spain (38.7%) [34]. Conflicting results on FLA contamination in tap water from different countries might be attributed to factors known to influence their presence, such as water source, water treatment method, geographic location, sample size and differences in water temperature [5].…”

Section: Resultssupporting

confidence: 88%

Monitoring Water Quality Parameters in Egyptian Tap Water

Sakran¹,

Matooq²,

Shahawy³

et al. 2019

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

Section: Resultssupporting

confidence: 88%

Monitoring Water Quality Parameters in Egyptian Tap Water

Sakran¹,

Matooq²,

Shahawy³

et al. 2019

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

“…Few reports have documented the presence of H. pylori in the environment (53)(54)(55)(56). The fastidious nature of H. pylori, the specificity of the gastric niche, and the tendency of H. pylori to transition to the coccoid form when stressed all seem contrary to the long-term survivability of extragastric H. pylori.…”

Section: Extragastric Biofilmsmentioning

confidence: 99%

Helicobacter pylori Biofilm Formation and Its Potential Role in Pathogenesis

Hathroubi

Servetas

Windham

et al. 2018

Microbiol Mol Biol Rev

153

142

View full text Add to dashboard Cite

Despite decades of effort, infections remain difficult to treat. Over half of the world's population is infected by, which is a major cause of duodenal and gastric ulcers as well as gastric cancer. During chronic infection, localizes within the gastric mucosal layer, including deep within invaginations called glands; thanks to its impressive ability to survive despite the harsh acidic environment, it can persist for the host's lifetime. This ability to survive and persist in the stomach is associated with urease production, chemotactic motility, and the ability to adapt to the fluctuating environment. Additionally, biofilm formation has recently been suggested to play a role in colonization. Biofilms are surface-associated communities of bacteria that are embedded in a hydrated matrix of extracellular polymeric substances. Biofilms pose a substantial health risk and are key contributors to many chronic and recurrent infections. This link between biofilm-associated bacteria and chronic infections likely results from an increased tolerance to conventional antibiotic treatments as well as immune system action. The role of this biofilm mode in antimicrobial treatment failure and survival has yet to be determined. Furthermore, relatively little is known about the biofilm structure or the genes associated with this mode of growth. In this review, therefore, we aim to highlight recent findings concerning biofilms and the molecular mechanism of their formation. Additionally, we discuss the potential roles of biofilms in the failure of antibiotic treatment and in infection recurrence.

show abstract

“…One factor in support of H. pylori infection being waterborne or related to poor health practices is the association, which some authors claim, of H. pylori with free-living amoebae (FLA), such as Acanthamoeba , Naegleria , Vermamoeba or Balamuthia , which are ubiquitous protozoa commonly found in water[ 119 - 122 ].…”

Section: Evidence Supporting the Role Of Water In The Transmission Ofmentioning

confidence: 99%

Helicobacter pylori: A foodborne pathogen?

Quaglia

Dambrosio

2018

WJG

View full text Add to dashboard Cite

Helicobacter pylori (H. pylori) is an organism that is widespread in the human population and is sometimes responsible for some of the most common chronic clinical disorders of the upper gastrointestinal tract in humans, such as chronic-active gastritis, duodenal and gastric ulcer disease, low-grade B-cell mucosa associated lymphoid tissue lymphoma of the stomach, and gastric adenocarcinoma, which is the third leading cause of cancer death worldwide. The routes of infection have not yet been firmly established, and different routes of transmission have been suggested, although the most commonly accepted hypothesis is that infection takes place through the faecal-oral route and that contaminated water and foods might play an important role in transmission of the microorganism to humans. Furthermore, several authors have considered H. pylori to be a foodborne pathogen because of some of its microbiological and epidemiological characteristics. H. pylori has been detected in drinking water, seawater, vegetables and foods of animal origin. H. pylori survives in complex foodstuffs such as milk, vegetables and ready-to-eat foods. This review article presents an overview of the present knowledge on the microbiological aspects in terms of phenotypic characteristics and growth requirements of H. pylori, focusing on the potential role that foodstuffs and water may play in the transmission of the pathogen to humans and the methods successfully used for the detection of this microorganism in foodstuffs and water.

show abstract

Detection of viable Helicobacter pylori inside free‐living amoebae in wastewater and drinking water samples from Eastern Spain

Cited by 30 publications

References 51 publications

Monitoring Water Quality Parameters in Egyptian Tap Water

Monitoring Water Quality Parameters in Egyptian Tap Water

Helicobacter pylori Biofilm Formation and Its Potential Role in Pathogenesis

Helicobacter pylori: A foodborne pathogen?

Contact Info

Product

Resources

About