Helicobacter pylori

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Microbiology".

Deadline for manuscript submissions: 28 February 2025 | Viewed by 28732

Special Issue Editors


E-Mail Website
Guest Editor
Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania
Interests: H. pylori; cancers; antioxidative process; diagnostic methods

E-Mail Website
Guest Editor
Department of Pathology, George Emil Palade University of Medicine, Pharmacy, Sciences and Technology, 38 Gheorghe Marinescu Street, 540139 Targu Mures, Romania
Interests: oncopathology; gastric cancer; colorectal cancer; hepatocellular carcinoma; epithelial–mesenchymal transition; targeted therapy of cancer; histopathology; molecular pathology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The scope of the special issue includes approaching H pilory infection from a new perspective of multidisciplinary approach. The carcinogenic role of infection is well known but the mechanisms of production are still poorly understood. From this perspective, we want to reconsider the role of oxidative stress in oncological pathology as well as other cellular mechanisms that have the potential to induce cancer. Another objective is to evaluate the role of new diagnostic methods in terms of their sensitivity and specificity

Prof. Dr. Ovidiu Pop
Prof. Dr. Gurzu Simona
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Life is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • H. Pylori
  • cancers
  • antioxidative process
  • diagnostic methods

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue polices can be found here.

Published Papers (8 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Jump to: Review

12 pages, 4497 KiB  
Article
Type 2 Diabetes Mellitus and Helicobacter pylori Gastritis in Patients Referred for Endoscopy—A Single-Center Romanian Study
by Sabrina-Nicoleta Munteanu, Dragoș Huțanu, Ana-Maria Filip, Andreea Raluca Cozac-Szőke, Simona Mocan and Anca Negovan
Life 2024, 14(9), 1160; https://doi.org/10.3390/life14091160 - 13 Sep 2024
Viewed by 636
Abstract
Background: Type 2 diabetes mellitus (T2DM) affects up to 10% of adults globally, and its complications can mask the risk of gastrointestinal bleeding or malignancy. Methods: Our study enrolled 633 endoscopic patients stratified according to T2DM presence (4:1 ratio in favor of the [...] Read more.
Background: Type 2 diabetes mellitus (T2DM) affects up to 10% of adults globally, and its complications can mask the risk of gastrointestinal bleeding or malignancy. Methods: Our study enrolled 633 endoscopic patients stratified according to T2DM presence (4:1 ratio in favor of the control group). Results: T2DM patients referred for endoscopy experienced lower prevalence of epigastric pain and heartburn (OR = 0.637/OR = 0.346, p < 0.05). Often being anemic (OR = 2.23, p < 0.001), they had significantly lower hemoglobin (p = 0.001) and serum iron (p = 0.02), but serum cholesterol was higher in non-diabetics. Ulcers, erosions and mucosal hemorrhages were comparable between groups (p < 0.05), although low-dose aspirin use was more prevalent in diabetics (p = 0.000, OR = 2.34). T2DM was associated with the increased frequency of antro-corporal active gastritis (OR = 1.451/OR 1.501), with smokers presenting a higher frequency of active H. pylori infection (OR = 3.37). T2DM predicted anemia (adjusted OR = 1.70) and the absence of gastroesophageal reflux symptoms (adjusted OR = 0.37), but not active H. pylori gastritis or premalignant lesions. Conclusion: In an endoscopic population, patients with T2DM had lower hemoglobin and serum iron levels. There was an inverse correlation between T2DM and heartburn. H. pylori gastritis and premalignant lesions occurred more frequently in diabetic patients (predominantly pangastritis) before adjusting for age or associated comorbidities, with smoking increasing the risk for active infection. Full article
(This article belongs to the Special Issue Helicobacter pylori)
Show Figures

Figure 1

12 pages, 842 KiB  
Article
Factors Predicting Effectiveness of Eradication Therapy for Helicobacter pylori-Associated Dyspepsia Symptoms
by Kohei Yasuda, Daisuke Chinda, Tadashi Shimoyama, Tetsu Arai, Kazuki Akitaya, Sae Fujiwara, Hiroki Nomiya, Yoshio Sasaki, Kazuo Komai, Yoshihiko Sawada, Yoshiharu Saito, Hironobu Chiba, Hirotake Sakuraba, Shinsaku Fukuda and the RINGO Study Group
Life 2024, 14(8), 935; https://doi.org/10.3390/life14080935 - 25 Jul 2024
Viewed by 672
Abstract
Functional dyspepsia is distinguishable from Helicobacter pylori-associated dyspepsia. However, distinguishing H. pylori-associated dyspepsia from functional dyspepsia before H. pylori eradication is difficult. Therefore, in the present study, we aimed to investigate whether serum pepsinogen levels before H. pylori eradication are associated [...] Read more.
Functional dyspepsia is distinguishable from Helicobacter pylori-associated dyspepsia. However, distinguishing H. pylori-associated dyspepsia from functional dyspepsia before H. pylori eradication is difficult. Therefore, in the present study, we aimed to investigate whether serum pepsinogen levels before H. pylori eradication are associated with the amelioration of dyspepsia after successful H. pylori eradication. Additionally, we examined the usefulness of serum pepsinogen levels and other factors in predicting dyspepsia outcomes. H. pylori eradication was effective in 14 patients (Responders) and ineffective in 19 patients (Non-responders). The pepsinogen I/II ratio in Responders (3.4 ± 1.2) and Non-responders (2.3 ± 1.0) differed significantly (p = 0.006). The optimal cut-off pepsinogen I/II value was 2.3. Multivariate logistic regression analysis showed that the adjusted odds ratio for Non-responders was 26.1 (95% confidence interval: 2.0–338.0, p = 0.012) for a pepsinogen I/II ratio ≤ 2.3 and 8.10 (95% confidence interval: 1.1–57.6, p = 0.037) for smoking habits. The pepsinogen I/II ratio and smoking habits were associated with the effects of H. pylori eradication on dyspeptic symptoms. Thus, the pepsinogen I/II ratio cut-off value can be used to identify patients likely to respond to H. pylori eradication after the resolution of dyspeptic symptoms. Full article
(This article belongs to the Special Issue Helicobacter pylori)
Show Figures

Figure 1

11 pages, 895 KiB  
Article
Prevalence of Helicobacter pylori Infection and Efficacy of Bismuth Quadruple and Levofloxacin Triple Eradication Therapies: A Retrospective Analysis
by Patricia Serena, Alexandru Popa, Renata Bende, Bogdan Miutescu, Ruxandra Mare, Andreea Borlea, Giovanni Aragona, Andrei Lucian Groza, Luca Serena, Alina Popescu, Ioan Sporea and Roxana Sirli
Life 2024, 14(7), 885; https://doi.org/10.3390/life14070885 - 17 Jul 2024
Viewed by 747
Abstract
Helicobacter pylori (H. pylori) infection is a widespread global health issue and a primary cause of diseases like gastritis, gastroduodenal ulcers, and gastric cancer. This study examines the prevalence of H. pylori infection in patients undergoing upper endoscopy and assesses the [...] Read more.
Helicobacter pylori (H. pylori) infection is a widespread global health issue and a primary cause of diseases like gastritis, gastroduodenal ulcers, and gastric cancer. This study examines the prevalence of H. pylori infection in patients undergoing upper endoscopy and assesses the efficacy of bismuth quadruple therapy (BQT) and levofloxacin triple therapy. A retrospective analysis of 507 gastroscopies was conducted, with indications including epigastric pain, heartburn, postprandial fullness, early satiation, and regurgitation. Rapid urease tests were performed, and endoscopic findings documented. Two treatment regimens were used: BQT as the first-line therapy and levofloxacin triple therapy as the second-line. Of the 507 patients, 68.8% were infected with H. pylori. Gastric ulcer patients had significantly higher H. pylori prevalence compared to those with small polyps, Barrett’s esophagus, or normal endoscopy. Among the 310 patients who participated in follow-up interviews, 11.9% did not initiate therapy and 5.1% discontinued due to intolerance. The overall eradication rate was 88.6%, with BQT showing a higher eradication rate (89.4%) compared to levofloxacin triple therapy (83.8%). The study highlights the high prevalence of H. pylori among patients with gastrointestinal symptoms and the effectiveness of BQT as a first-line treatment. Full article
(This article belongs to the Special Issue Helicobacter pylori)
Show Figures

Figure 1

11 pages, 1086 KiB  
Article
Correlations between Endoscopic and Histopathological Assessment of Helicobacter pylori-Induced Gastric Pathology—A Cross-Sectional Retrospective Study
by Cătălina Dănilă, Ioana Alexandra Cardos, Andrea Pop-Crisan, Felicia Marc, Anica Hoza, Razvan Chirla, Andrei Pascalău, Calin Magheru and Simona Cavalu
Life 2022, 12(12), 2096; https://doi.org/10.3390/life12122096 - 13 Dec 2022
Cited by 5 | Viewed by 5023
Abstract
Helicobacter pylori (H. pylori) infects about half of the world’s population and can lead to premalignant lesions and gastric cancer. Updated data about the correlation of histopathological diagnostics with endoscopic diagnostics are scarce. The objective of this study was to identify [...] Read more.
Helicobacter pylori (H. pylori) infects about half of the world’s population and can lead to premalignant lesions and gastric cancer. Updated data about the correlation of histopathological diagnostics with endoscopic diagnostics are scarce. The objective of this study was to identify the concordance between endoscopic and histopathologic findings, with a focus on premalignant lesions. We performed a cross sectional, retrospective study over a 4-year period (2017–2021) on adult patients with dyspeptic symptoms and positive RUT (rapid urease test) in a single hospital centre, with a total of 133 patients infected with H. pylori being included in the study. Statistical associations between endoscopic appearance and histopathological results were found for atrophic antral gastritis (p = 0.001), intestinal metaplasia of the antrum (p = 0.018), gastric polyps (p < 0.001) and gastric corpus cancer (p = 0.012). Females were more likely to be diagnosed through endoscopy with gastric atrophy or intestinal metaplasia (p = 0.031), while chronic atrophic gastritis in corpus was more prevalent in patients older than 65 (p = 0.024). Overall, our study reveals only 21% concordance between Giemsa stain and RUT, highlighting the importance of combining rapid testing with endoscopic and histopathological diagnostic methods for a more accurate early diagnosis and prevention of gastric cancer. Full article
(This article belongs to the Special Issue Helicobacter pylori)
Show Figures

Figure 1

11 pages, 1030 KiB  
Article
Helicobacter pylori-Positive Gastric Biopsies—Association with Clinical Predictors
by Anca Negovan, Andreea-Raluca Szőke, Simona Mocan and Claudia Bănescu
Life 2022, 12(11), 1789; https://doi.org/10.3390/life12111789 - 4 Nov 2022
Cited by 1 | Viewed by 4939
Abstract
Introduction: Although Helicobacter pylori’s role in gastric oncogenesis is well-known, only a fraction of infected patients develop cancer. Hence, more factors are supposed to be involved. The objectives of the present study were to investigate the impact of clinicopathological parameters on Helicobacter pylori [...] Read more.
Introduction: Although Helicobacter pylori’s role in gastric oncogenesis is well-known, only a fraction of infected patients develop cancer. Hence, more factors are supposed to be involved. The objectives of the present study were to investigate the impact of clinicopathological parameters on Helicobacter pylori status. Methods: The study included 1522 patients referred for endoscopy: study group consisted of 557 patients with Helicobacter pylori-positive biopsies confirmed using histochemical stains or immunohistochemistry methods; and the control group consisted of 965 patients with Helicobacter pylori-negative status on histology. Results: Severe endoscopic lesions were more frequent in the Helicobacter pylori group (p < 0.001), with no difference noticed in the distribution of premalignant gastric lesions (p = 0.82). Anemia and dyslipidemia were independent factors associated with Helicobacter pylori-positive biopsies (p < 0.05). Non-steroidal anti-inflammatory therapy was more frequently administered in the study group, while proton-pump inhibitors had an anti-Helicobacter pylori activity on histology (p < 0.0001). Conclusion: In the studied population, patients with Helicobacter pylori-positive biopsies had a more frequent history of gastrotoxic medication, severe endoscopic lesions, and anemia. Helicobacter pylori was unpredictable by gastrointestinal symptoms. The frequency of premalignant gastric lesions was similar irrespective of the actual status of infection, underlining the importance of unintentional clearance of bacteria in old infection and the remaining risk for cancer in this population. Full article
(This article belongs to the Special Issue Helicobacter pylori)
Show Figures

Figure 1

Review

Jump to: Research

12 pages, 957 KiB  
Review
Advances in Diagnostic Modalities for Helicobacter pylori Infection
by Haider Ghazanfar, Nismat Javed, Raul Reina, Ornela Thartori, Ali Ghazanfar and Harish Patel
Life 2024, 14(9), 1170; https://doi.org/10.3390/life14091170 - 17 Sep 2024
Viewed by 1455
Abstract
Helicobacter pylori (H. pylori) infection is a widespread global health issue with a varying prevalence influenced by geography, socioeconomic status, and demographics. In the U.S., the prevalence is lower, though certain groups, such as older adults and immigrants from high-prevalence regions, [...] Read more.
Helicobacter pylori (H. pylori) infection is a widespread global health issue with a varying prevalence influenced by geography, socioeconomic status, and demographics. In the U.S., the prevalence is lower, though certain groups, such as older adults and immigrants from high-prevalence regions, show higher rates. The decrease in infection rates in developed countries is due to improved sanitation, antibiotics, and healthcare, whereas developing countries continue to experience high rates due to poor living conditions. H. pylori infection can be asymptomatic or cause symptoms like dyspepsia, abdominal pain, bloating, nausea, and loss of appetite. Pathophysiologically, H. pylori contribute to conditions such as gastritis, peptic ulcers, and gastric cancer through mechanisms including urease production and the release of virulence factors, leading to chronic inflammation and an increased cancer risk. Diagnostic methods for H. pylori have progressed significantly. Non-invasive techniques, such as serological assays, stool antigen tests, and urea breath tests, are practical and sensitive. Invasive methods, including endoscopic biopsy and molecular diagnostics, are more definitive but resource intensive. Recent advancements in diagnostic technology, including matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), biosensor technology, and next-generation sequencing (NGS), promise improved speed, accuracy, and accessibility. These innovations are expected to enhance the detection and management of H. pylori, potentially reducing the global disease burden. This review aims to discuss these diagnostic modalities with a focus on further advances under investigation. Full article
(This article belongs to the Special Issue Helicobacter pylori)
Show Figures

Figure 1

16 pages, 374 KiB  
Review
The Most Recent Insights into the Roots of Gastric Cancer
by Lorena Elena Meliț, Cristina Oana Mărginean and Reka Borka Balas
Life 2024, 14(1), 95; https://doi.org/10.3390/life14010095 - 8 Jan 2024
Cited by 2 | Viewed by 1845
Abstract
Helicobacter pylori (H. pylori) is the most common bacterial infection worldwide, usually being acquired during childhood, and its persistence into adulthood represents one of the main contributors of gastric carcinogenesis. Based on these statements, it would be of great importance to [...] Read more.
Helicobacter pylori (H. pylori) is the most common bacterial infection worldwide, usually being acquired during childhood, and its persistence into adulthood represents one of the main contributors of gastric carcinogenesis. Based on these statements, it would be of great importance to know if the most early premalignant transformation occurs in children or later since, this would enable the development of effective anti-tumorigenesis strategies. The interplay between H. pylori virulence factors, the host’s responses modified by this infection, and the gastric microecology are complex and eventually lead to the development of gastric cancer in susceptible individuals. Several biomarkers were identified as major contributors of this long-lasting process, such as pepsinogens, gastrin 17, lipid-, glucose- and iron-metabolism parameters, immunity players, aberrant bacterial DNA methylation, H. pylori virulence factors, and hallmarks of gastric dysbiosis. Several of these biomarkers were also identified in children with H. pylori infection, independently of the presence of premalignant lesions, which were also proven to be present in a subgroup of H. pylori-infected children, especially those carrying extremely virulent strains. Therefore, the most incipient premalignant gastric changes might indeed occur early during childhood, opening a promising research gate for further studies to delineate the border between infection and cancer. Full article
(This article belongs to the Special Issue Helicobacter pylori)
20 pages, 2784 KiB  
Review
Helicobacter Pylori: A Review of Current Treatment Options in Clinical Practice
by Logan T. Roberts, Peter P. Issa, Evan S. Sinnathamby, Mallory Granier, Holly Mayeux, Treniece N. Eubanks, Kevin Malone, Shahab Ahmadzadeh, Elyse M. Cornett, Sahar Shekoohi and Alan D. Kaye
Life 2022, 12(12), 2038; https://doi.org/10.3390/life12122038 - 6 Dec 2022
Cited by 6 | Viewed by 11711
Abstract
Background: When prescribing antibiotics, infection eradication rates, local resistance rates, and cost should be among the most essential considerations. Helicobacter pylori is among the most common infections worldwide, and it can lead to burdensome sequela for the patient and the healthcare system, without [...] Read more.
Background: When prescribing antibiotics, infection eradication rates, local resistance rates, and cost should be among the most essential considerations. Helicobacter pylori is among the most common infections worldwide, and it can lead to burdensome sequela for the patient and the healthcare system, without appropriate treatment. Due to constantly fluctuating resistance rates, regimens must be constantly assessed to ensure effectiveness. Methods: This was a narrative review. The sources for this review are as follows: searching on PubMed, Google Scholar, Medline, and ScienceDirect; using keywords: Helicobacter pylori, Treatment Options, Clinical Practice. Results: Multiple antibiotics are prescribed as part of the regimen to thwart high resistance rates. This can lead to unwanted adverse reactions and adherence issues, due to the amount and timing of medication administration, which also may contribute to resistance. Single-capsule combination capsules have reached the market to ease this concern, but brand-only may be problematic for patient affordability. Due to the previously mentioned factors, effectiveness and affordability must be equally considered. Conclusions: This review will utilize guidelines to discuss current treatment options and give cost considerations to elicit the most effective regimen for the patient. Full article
(This article belongs to the Special Issue Helicobacter pylori)
Show Figures

Figure 1

Back to TopTop