Clavulanic Acid in the Scope of Helicobacter pylori Treatment: A Literature Review and Beyond

2020 ◽  
Vol 15 ◽  
Author(s):  
Nasr Alrabadi ◽  
Iyad S. Albustami ◽  
Husam A. Abuhayyeh ◽  
Khaled M. El-Muwalla ◽  
Rama J. Alawneh ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Peptic Ulcer ◽  
Peptic Ulcer Disease ◽  
Clavulanic Acid ◽  
Clinical Studies ◽  
Filamentous Form ◽  
Ulcer Disease ◽  
Treatment Regimens ◽  
Randomized Controlled Studies ◽  
H Pylori

Background: Helicobacter pylori (H.pylori) infection is the most common cause of peptic ulcer disease and it can be associated with many complications including malignancies. In clinical practice, some clinicians may use clavulanic acid (CA) in combination with amoxicillin or other beta-lactams as an addition to the standard treatment regimens. This practice may be made by habitual mistake, non-evidence based hypothetical assumptions, or by prescribing it as an alternative treatment. This review aims to expose the effect of CA against H.pylori infection and to review the possible mechanisms that may contribute to that effect. Methods: A PubMed and Google Scholar literature search was obtained on both pre-clinical and clinical studies related to CA and H.pylori infection. Results: Available clinical studies showed improvement in the eradication of H. pylori by about 10-20% when CA was added to the treatment regimens. This effect for CA could be related to several mechanisms including inhibition of H. pylori growth by binding to penicillin-binding proteins (PBPs), the transformation of H. pylori from the active filamentous form into coccoidal form, induction of the release of dopamine, modulation of immunological response towards H. pylori infection and its relationship with other microbiota. Randomized-controlled studies on patients with resistance H. pylori are needed. Moreover, In_vitro studies to evaluate the mechanisms by which CA may influence H. pylori are warranted. Conclusion: The presented literature suggests potential avenues for the use of CA in the management of peptic ulcer disease and H.pylori infection.

scholarly journals Identification of Markers for Helicobacter pylori Strains Isolated from Children with Peptic Ulcer Disease by Suppressive Subtractive Hybridization

2006 ◽  
Vol 74 (7) ◽  
pp. 4064-4074 ◽  
Author(s):  
Mónica Oleastro ◽  
Lurdes Monteiro ◽  
Philippe Lehours ◽  
Francis Mégraud ◽  
Armelle Ménard
Keyword(s):  
Helicobacter Pylori ◽  
Peptic Ulcer ◽  
Peptic Ulcer Disease ◽  
Subtractive Hybridization ◽  
Suppressive Subtractive Hybridization ◽  
Ulcer Disease ◽  
Lipopolysaccharide Biosynthesis ◽  
The Difference ◽  
H Pylori

ABSTRACT Peptic ulcer disease (PUD) occurs after a long-term Helicobacter pylori infection. However, the disease can develop earlier, and rare cases have been observed in children, suggesting that these H. pylori strains may be more virulent. We used suppressive subtractive hybridization for comparative genomics between H. pylori strains isolated from a 5-year-old child with duodenal ulcer and from a sex- and age-matched child with gastritis only. The prevalence of the 30 tester-specific subtracted sequences was determined on a collection of H. pylori strains from children (15 ulcers and 30 gastritis) and from adults (46 ulcers and 44 gastritis). Two of these sequences, jhp0562 (80.0% versus 33.3%, P = 0.008) and jhp0870 (80.0% versus 36.7%, P = 0.015), were highly associated with PUD in children and a third sequence, jhp0828, was less associated (40.0% versus 10.0%, P = 0.048). Among adult strains, none of the 30 sequences was associated with PUD. However, both jhp0562 and jhp0870 were less prevalent in adenocarcinoma strains than in PUD strains from children and adults, the difference being statistically significant for jhp0870. In conclusion, two H. pylori genes were identified as being strongly associated with PUD in children, and their putative roles as an outer membrane protein for jhp0870 and in lipopolysaccharide biosynthesis for jhp0562, suggest that they may be novel virulence factors of H. pylori.

scholarly journals Association of Helicobacter Pylori with Peptic Ulcer Perforation

2019 ◽  
Vol 2 (1) ◽  
pp. 4-10
Author(s):  
Sunit Agrawal ◽  
D Thakur ◽  
P Kafle ◽  
A Koirala ◽  
R K Sanjana ◽  
...  
Keyword(s):  
Risk Factors ◽  
Helicobacter Pylori ◽  
Peptic Ulcer ◽  
Peptic Ulcer Disease ◽  
Perforated Peptic Ulcer ◽  
Patch Repair ◽  
Peptic Ulcer Perforation ◽  
Ulcer Disease ◽  
Ulcer Perforation ◽  
H Pylori

Background: Helicobacter pylori is found in more than 90% cases of peptic ulcer. This study examines the possibility of association of Helicobacter pylori in perforated peptic ulcer disease and its relation to persisting ulcer as well as the influence of other risk factors; namely: smoking, alcohol, current non-steroidal anti inflammatory drugs (NSAIDs) and steroid use. Materials and Methods: In this prospective study, total of 50 cases of peptic ulcer perforation admitted in College of Medical Sciences and Teaching Hospital, Bharatpur, Nepal were selected on the basis of the non-probability (purposive) sampling method. All patients who presented with suspected peptic ulcer perforation were included in the study and the perforations were repaired by Modified Graham’s Patch and were given triple therapy postoperatively. The age, sex, incidence, mode of presentation, precipitating factors, association with the risk factors and postoperative complications were all evaluated and compared. Results: Of 50 patients studied, the age ranged from 17 to 75 years, mean age being 40.1 years with the peak incidence in the 3rd and 5th decades of life showing a male dominance (92%). H. pylori was seen in ulcer edge biopsy in 29 patients (58%). Most common clinical presentation was pain abdomen, the most common signs of perforation were tenderness, rebound tenderness and absent bowel sounds. The mean duration of stay in hospital in H. pylori positive patients was 12.07±8.15 days as compared with 11.1±5.12 days in H. pylori negative patients. The incidence of peptic ulcer perforation was higher in the patients consuming alcohol (64%) than smokers (48%), followed by NSAIDs user(22%). 20% of the patients with delayed presentation developed complications postoperatively. Perforated peptic ulcer was repaired by Modified Graham’s Patch Repair, followed by anti H. pylori therapy in all of them. Conclusion: Peptic ulcer perforation is quite common among the patients with peptic ulcer disease with history of chronic smoking, alcoholism and analgesic intake, more commonly in males. There is association of H. pylori in 58% of patients with peptic ulcer perforation.

scholarly journals Helicobacter Pylori Associated Antral Gastritis in Peptic Ulcer Disease Patients and Normal Healthy Population of Kashmir, India

1998 ◽  
Vol 4 (3) ◽  
pp. 135-139 ◽  
Author(s):  
Gh. Jeelani Romshoo ◽  
G. M. Malik ◽  
M. Youssuf Bhat ◽  
Ab. Rashid rather ◽  
Javaid Ahmad Basu ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Peptic Ulcer ◽  
Gastric Ulcer ◽  
Peptic Ulcer Disease ◽  
Healthy Volunteers ◽  
Chronic Gastritis ◽  
Healthy Population ◽  
Ulcer Disease ◽  
Antral Gastritis ◽  
H Pylori

Aim: To study the association of Helicobacter pylori infection with chronic antral gastritis in peptic ulcer disease patients and healthy population of Kashmir.Methods: 50 peptic ulcer patients (duodenal ulcer = 46, gastric ulcer = 2 and combined duodenal and gastric ulcer = 2) and 30 asymptomatic healthy volunteers were included in this study. Peptic ulcer was diagnosed on endoscopic examination. 4–6 punch biopsies were taken from gastric antrum in all the individuals and in case of gastric ulcer an additional biopsy was taken from the edge of the ulcer to exclude its malignant nature. Helicobacter pylori (H. pylori) organism was diagnosed using three different test methods, viz. Histology (using Giemsa Stain), Microbiology (Gram Stain) and Biochemistry (using one minute Endoscopy Room Test). Histological diagnosis of H. pylori was taken as the “gold standard” for the presence of H. pylori organism. Histological diagnosis of gastritis was made using Hematoxylin and Eosin Stain and the gastritis was classified as active chronic gastritis and superficial chronic gastritis.Results: Out of 30 peptic ulcer disease patients with associated antral gastritis, 27 (90%) were positive for H. pylori on histological examination (13 superficial chronic gastritis and 14 active chronic gastritis) whereas out of 8 healthy volunteers with histological evidence of chronic antral gastritis, H. pylori was observed in 7 individuals (87.50%) (4 active chronic gastritis and 3 superficial chronic gastritis).Conclusion: A highly significant association between H. pylori infection with chronic antral gastritis both in peptic ulcer disease patients and healthy volunteers of Kashmir was found in this study. Association between H. pylori infection and chronic gastritis was 90% in peptic ulcer group and 87.50% in healthy population (P<0.005).

scholarly journals PCR-Based Restriction Pattern Typing of the vacA Gene Provides Evidence for a Homogeneous Group among Helicobacter pylori Strains Associated with Peptic Ulcer Disease

1999 ◽  
Vol 37 (4) ◽  
pp. 912-915 ◽  
Author(s):  
Manuela Donati ◽  
Elisa Storni ◽  
Lucia D’Apote ◽  
Sandra Moreno ◽  
Antonio Tucci ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Peptic Ulcer ◽  
Peptic Ulcer Disease ◽  
Restriction Pattern ◽  
Polymorphism Analysis ◽  
Nonulcer Dyspepsia ◽  
Ulcer Disease ◽  
Pcr Products ◽  
Vaca Gene ◽  
H Pylori

The results of PCR-based molecular typing of Helicobacter pylori strains by restriction fragment length polymorphism analysis of a 1,161-bp nucleotide sequence of the midregion of thevacA gene are reported. A total of 48 H. pylori strains isolated from gastric biopsy specimens obtained from 18 patients with peptic ulcer dyspepsia, 15 patients with nonulcer dyspepsia, and 15 asymptomatic H. pylori-infected subjects were studied. Highly heterogeneous restriction patterns were obtained by digestion of PCR products with SauII,BglII, and HhaI, whereas HaeIII digestion resulted in a strictly homogeneous profile for H. pylori strains isolated from 14 of 18 (77.7%) patients with peptic ulcer dyspepsia, but a strictly homogeneous profile was found for strains from only 8 of 15 (53.3%) patients with nonulcer dyspepsia (P = 0.163) and 5 of 15 (33.3%) asymptomaticH. pylori-infected subjects (P = 0.014). A potentially important aspect of the results obtained is the clinical relevance, since a single restriction pattern seems to be able to identify the majority of H. pylori strains associated with peptic ulcer disease.

scholarly journals Neither genotype nor the gastric colonization site of Helicobacter pylori are predictive factors for the development of erosive esophagitis in patients with peptic ulcer disease, 1 year after eradication

2009 ◽  
Vol 46 (3) ◽  
pp. 204-208
Author(s):  
Carlos Alexandre Gonçalves Batista ◽  
Fernando Marcuz Silva ◽  
Ricardo Correa Barbuti ◽  
Jaime Natan Eisig ◽  
Rejane Mattar ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Peptic Ulcer ◽  
Los Angeles ◽  
Peptic Ulcer Disease ◽  
Erosive Esophagitis ◽  
Predisposing Factor ◽  
Ulcer Disease ◽  
Gastric Colonization ◽  
Virulent Strains ◽  
H Pylori

CONTEXT: Whether Helicobacter pylori infection is a protective or predisposing factor for the development of gastroesophageal reflux disease remains controversial. The most virulent strains, such as those expressing the cytotoxin-associated gene A (CagA), and the site of gastric colonization have been correlated with the prevention or development of esophagitis. AIM: To determine the incidence of erosive esophagitis following eradication of H. pylori in patients with peptic ulcer disease and to evaluate the association of erosive esophagitis with virulent strains of H. pylori and the site of gastric colonization. METHODS: Triple therapy with lansoprazole, amoxicillin and clarithromycin was administered to 159 patients with peptic ulcer disease. Endoscopy, histopathology, urease and carbon-14 urea breath tests were performed prior to treatment, at 3 months and 1 year following treatment. Genotyping of H. pylori strains using polymerase chain reaction was performed separately on samples from the corpus and antrum. RESULTS: One year after treatment, 148 successfully treated patients were reevaluated. Twenty-eight patients (19%) had erosive esophagitis, classified as Los Angeles grade A in 24 and B in 4. The samples taken from the corpus were CagA-positive in 18 patients (64%), while the samples taken from the antrum were CagA-positive in 21 patients (75%). CONCLUSIONS: The incidence of erosive esophagitis in peptic ulcer patients who had their H. pylori eradicated was 19%. No correlation was found between the gastric site colonized by H. pylori or strains expressing CagA and the prevention or development of erosive esophagitis in patients with peptic ulcer disease, 1 year after infection eradication.

scholarly journals A study on healing of peptic ulcer disease after eradication of helicobacter pylori infection

2014 ◽  
Vol 43 (2) ◽  
pp. 84-89 ◽  
Author(s):  
Md Razibul Alam ◽  
Ershad Uddin Ahmed ◽  
Md Zahidur Rahman ◽  
ASM Nazmul Islam ◽  
Md Masudur Rahman Khan ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Peptic Ulcer ◽  
Peptic Ulcer Disease ◽  
Triple Therapy ◽  
Ulcer Healing ◽  
Eradication Rate ◽  
Helicobacter Pylori Infection ◽  
Ulcer Disease ◽  
Standard Triple Therapy ◽  
H Pylori

There is intimate connection between peptic ulcer & Helicobacter pylori infection. But some uncertainties still surround the relationship between status of H. pylori infection and extent & time required for ulcer healing. This prospective observational study was carried out in the department of Gastroenterology, BSMMU, Dhaka from January 2007 to January 2008 to determine whether the successful eradication of H. pylori leads to adequate ulcer healing. To see the pattern of endoscopic findings in patients still having H. pylori infection after standard triple therapy for H. pylori were also a objective. Eighty nine consecutive patients, aged 15-60 years and of both genders, coming to the gastroenterology outpatient department with the symptoms suggestive of peptic ulcer disease and dyspepsia were included and H. pylori status was defined as positive if both rapid urease test & histopathology were positive. As found in this study, H. pylori was associated with 90% of duodenal ulcers and 80% of gastric ulcers. H. pylori eradication rate was 69%. Healing rate of duodenal ulcer and gastric ulcer after standard triple therapy for 14 days were 80% and 78% respectively. Adequate ulcer healing was achieved in this study despite relatively low eradication rate. Follow-up for additional period is required for recurrence of ulcer in 84 patients whose peptic ulcer disease had resolved but could not attain H. pylori eradication and H. pylori eradicated patients who are still having ulcer at endoscopy DOI: http://dx.doi.org/10.3329/bmj.v43i2.21388 Bangladesh Med J. 2014 May; 43 (2): 84-89

scholarly journals The Human Gastric Pathogen Helicobacter pylori and Its Association with Gastric Cancer and Ulcer Disease

Ulcers ◽  
2011 ◽  
Vol 2011 ◽  
pp. 1-23 ◽  
Author(s):  
Bianca Bauer ◽  
Thomas F. Meyer
Keyword(s):  
Gastric Cancer ◽  
Helicobacter Pylori ◽  
Peptic Ulcer ◽  
Peptic Ulcer Disease ◽  
Strain Differences ◽  
Protective Effects ◽  
Ulcer Disease ◽  
Prophylactic Measures ◽  
H Pylori

With the momentous discovery in the 1980's that a bacterium, Helicobacter pylori, can cause peptic ulcer disease and gastric cancer, antibiotic therapies and prophylactic measures have been successful, only in part, in reducing the global burden of these diseases. To date, ~700,000 deaths worldwide are still attributable annually to gastric cancer alone. Here, we review H. pylori's contribution to the epidemiology and histopathology of both gastric cancer and peptic ulcer disease. Furthermore, we examine the host-pathogen relationship and H. pylori biology in context of these diseases, focusing on strain differences, virulence factors (CagA and VacA), immune activation and the challenges posed by resistance to existing therapies. We consider also the important role of host-genetic variants, for example, in inflammatory response genes, in determining infection outcome and the role of H. pylori in other pathologies—some accepted, for example, MALT lymphoma, and others more controversial, for example, idiopathic thrombocytic purpura. More recently, intriguing suggestions that H. pylori has protective effects in GERD and autoimmune diseases, such as asthma, have gained momentum. Therefore, we consider the basis for these suggestions and discuss the potential impact for future therapeutic rationales.

scholarly journals Peptic Ulcers and their Complications

2020 ◽  
Vol 10 (3-s) ◽  
pp. 256-261
Author(s):  
Akhilesh Kumar ◽  
Dhanesh Kumar ◽  
Rajendra Kumar ◽  
Jhakeshwar Prasad ◽  
Mahendra Kumar ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Peptic Ulcer ◽  
Head Injury ◽  
Peptic Ulcer Disease ◽  
Early Life ◽  
Acute Stress ◽  
Peptic Ulcers ◽  
Ulcer Disease ◽  
Number Of Children ◽  
H Pylori

Peptic ulcer disease (PUD) is an uncommon disorder of early life. Peptic ulceration of the stomach or duodenum is usually associated with abnormalities of the gastric mucosa such as gastritis and/or gastropathy. Gastritis and ulcers of the stomach and duodenum can be classified into either primary or secondary depending on their aetiologies. The majority of primary or unexplained peptic ulcers are the result of chronic inflammation caused by Helicobacter pylori infection. However, an increasing number of children with PUD without evidence of H. Pylori infection are now being seen. Rarely PUD is caused by hypersecretory states. Secondary ulceration occurs in response to acute stress from severe systemic illnesses such as sepsis, head injury, burns, and as sequelae to use of certain drugs. The prognosis for recovery from peptic ulcers is good as most patients will respond to treatment. Keywords:  Peptic ulcer disease, Complication, Helicobacter pylori, NSAIDs, Management.

Sign in / Sign up

Export Citation Format

Share Document