scholarly journals Helicobacter suis-Infected Nodular Gastritis and a Review of Diagnostic Sensitivity for Helicobacter heilmannii-Like Organisms

2015 ◽  
Vol 9 (2) ◽  
pp. 179-187 ◽  
Author(s):  
Shigeki Goji ◽  
Yasuhiro Tamura ◽  
Makoto Sasaki ◽  
Masahiko Nakamura ◽  
Hidenori Matsui ◽  
...  
Keyword(s):  
Genetic Diagnosis ◽  
Rapid Urease Test ◽  
Chain Reaction ◽  
Histological Techniques ◽  
Helicobacter Heilmannii ◽  
Urease Test ◽  
Nodular Gastritis ◽  
Stool Antigen ◽  
Polymerase Chain ◽  
H Pylori

Helicobacter heilmannii-like organisms (HHLOs) are associated with mucosa-associated lymphoid tissue lymphoma and peptic ulcer. However, the sensitivity of diagnostic tests for HHLOs, such as rapid urease test (RUT), urea breath test (UBT) and blood antibody, is not high. Tightly coiled spiral microorganisms were found in the gastric mucosal biopsy specimen of a 48-year-old asymptomatic woman. Her findings were positive for RUT and UBT, but negative for blood antibody and stool antigen against H. pylori. A 7-day course of esomeprazole, amoxicillin and clarithromycin was administered, resulting in the successful eradication of the HHLOs. Analysis of the 16S rRNA and urease genes suggested a diagnosis of the HHLO H. suis. The sensitivity results of RUT, UBT, culture, blood antibody, immunohistochemistry and stool antigen were 40.0, 14.8, 0, 23.1, 40.0 and 0%, respectively. We report asymptomatic nodular gastritis due to an HHLO. Histological techniques, most likely with smears, are expected to be the most effective method for diagnosing infections by HHLOs, and genetic diagnosis by polymerase chain reaction can be very useful to identify the species of HHLOs.

scholarly journals Helicobacter pylori infection in diabetes mellitus patients with peptic ulcer disease

2021 ◽  
Vol 14 (2) ◽  
pp. 27-32
Author(s):  
Salma Khatun ◽  
Khandaker Shadia ◽  
Mafruha Mahmud ◽  
Sraboni Mazumder ◽  
Indrajit Kumar Dutta ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Helicobacter Pylori ◽  
Peptic Ulcer ◽  
Helicobacter Pylori Infection ◽  
Enzyme Linked Immunosorbent Assay ◽  
Diabetic Patients ◽  
Rapid Urease Test ◽  
Urease Test ◽  
Stool Antigen ◽  
H Pylori

Background and objectives: Helicobacter pylori infection is suspected to be associated with extra-gastrointestinal disorders such as diabetes mellitus (DM). It is still a subject of investigation whether H. pylori has a pathogenic role on DM or diabetic patients have an increased susceptibility to H. pylori infection. The aim of the present study was to find out the rate of H. pylori infection in individuals with and without DM. Materials and methods: The study was conducted on 72 diabetic and 19 non-diabetic adult individuals with dyspeptic symptoms attending the BIRDEM General Hospital for diagnostic endoscopy. All cases were tested for H. pylori stool antigen by rapid immunochromatographic test (ICT), urease production in biopsy samples by rapid urease test (RUT), and serum anti-H. pylori IgA and anti-CagA IgG antibodies by enzyme-linked immunosorbent assay (ELISA). Any case that had peptic ulcer/erosion and was positive for H. pylori stool antigen or rapid urease test (RUT) was defined as H. pylori positive case. Results: There was no significant (p=0.095) difference in H. pylori infection between diabetics and non-diabetics (68.1% vs 47.4%). Presence of ulcer and erosion were not significantly different among diabetics and non-diabetics. Anti-H. pylori IgA positivity rate in H. pylori positive diabetic and non-diabetic cases were 65.3% and 55.6% (p=0.575) respectively while anti-CagA IgG rate in those cases were 46.9% and 66.7% (p=0.276) respectively. Conclusion: The present study did not reveal any significant difference in H. pylori infection between individuals with and without DM having peptic ulcer/erosion. Ibrahim Med. Coll. J. 2020; 14(2): 27-32

scholarly journals Helicobacter pylori CagA seropositivity in adult Bangladeshi patients with peptic ulcer and erosion

2020 ◽  
Vol 14 (1) ◽  
pp. 36-40
Author(s):  
Fahmida Rahman ◽  
Khandaker Shadia ◽  
Salma Khatun ◽  
Mafruha Mahmud ◽  
Indrajit Kumar Dutta ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Peptic Ulcer ◽  
Enzyme Linked Immunosorbent Assay ◽  
Rapid Urease Test ◽  
Igg Antibody ◽  
Ulcer Disease ◽  
Urease Test ◽  
Urease Production ◽  
Stool Antigen ◽  
H Pylori

Background: CagA IgG antibody in sera might indicate presence of virulent Helicobacter pylori in patients with peptic ulcer disease. Present study was performed to find out the prevalence of CagA IgG antibody in patients with peptic ulcer/erosion. Methods: Any case that had peptic ulcer/erosion, plus positive for rapid urease test (RUT) or H. pylori stool antigen (HpSAg) or serum anti-H. pylori IgG/IgA were included in the study and named as H. pylori positive case. H. pylori positive cases were tested for CagA IgG antibody. Anti-H. pylori IgG, IgA and CagA IgG antibodies were determined by enzyme-linked immunosorbent assay (ELISA) and stool antigen by rapid immunochromatographic test (ICT). Urease production in biopsy sample was detected by RUT. Results: Total 86 H. pylori positive patients were included in the study. Out of 86 patients, CagA IgG was positive in 34 (39.5%; 95% CI: 0.30,0.50) cases. CagA seropositivity rate in ulcer and erosion cases were 58.8% (95% CI: 0.36,0.78) and 34.8% (95% CI: 0.25,0.47) respectively. H. pylori stool antigen and IgA antibodies were positive in all (100%) CagA antibody positive ulcer cases while the rates were significantly less among the CagA antibody negative cases (42.8% and 28.6%; p<0.05). However, in CagA antibody positive erosion cases, the rates were not significantly different from CagA antibody negative cases. Conclusion: The study has demonstrated that the CagA positive strain is less prevalent in erosion than ulcer cases. Ibrahim Med. Coll. J. 2020; 14(1): 36-40

scholarly journals Helicobacter pylori and Helicobacter heilmannii in untreated Bulgarian children over a period of 10 years

2007 ◽  
Vol 56 (8) ◽  
pp. 1081-1085 ◽  
Author(s):  
Lyudmila Boyanova ◽  
Elena Lazarova ◽  
Christo Jelev ◽  
Galina Gergova ◽  
Ivan Mitov
Keyword(s):  
Helicobacter Pylori ◽  
Chronic Gastritis ◽  
Living Environment ◽  
Rural Children ◽  
Rapid Urease Test ◽  
Infection Prevalence ◽  
Helicobacter Heilmannii ◽  
Urease Test ◽  
H Pylori ◽  
The Impact

The aims of the study were to evaluate the incidence of Helicobacter pylori and Helicobacter heilmannii in untreated Bulgarian children from 1996 to 2006, to analyse the performance of diagnostic tests, and to look at H. pylori density in specimens by culture. Antral specimens from children with chronic gastritis (n=513), peptic ulcers (n=54) and other diseases (n=91) were evaluated by direct Gram staining (DGS), in-house rapid urease test (RUT) and culture. The living environment and semi-quantitative H. pylori density were assessed in 188 and 328 children, respectively. H. pylori infection was found in children with ulcers (77.8  %), chronic gastritis (64.5  %) and other diseases (36.3  %). Half (51.4  %) of patients aged 1–5 years and 77.4  % of those aged 16–17 years were H. pylori-positive. Of all children, 328 (49.8  %) showed positive DGS, 184 (28  %) had a positive RUT, and 386 (58.7  %) were culture-positive. Unlike gastric mucus specimens, frozen biopsy specimens provided reliable diagnosis. H. heilmannii was observed in two (0.3  %) children. High H. pylori density (growth into all quadrants of plates) was found in 18  % of 328 children evaluated, involving 31  % of ulcer and 16.7  % of non-ulcer patients. H. pylori infection was more common in rural children with chronic gastritis (91.3  %) than in the remainder (66.7  %). In conclusion, H. pylori infection was common in symptomatic Bulgarian children. The infection prevalence was >77  % in patients aged 16–17 years, in children with a duodenal ulcer, and in rural patients. H. heilmannii infection was uncommon. The performance of the bacterial culture was good. The impact of H. pylori density on the clinical expression and eradication of the infection requires further evaluation. The results highlight the need for routine H. pylori diagnosis in rural children with chronic gastritis.

scholarly journals Stool Antigen Test is Effective and Sensitive for Detecting Helicobacter Pylori Infection in Bangladeshi Peptic Ulcer Patients

2021 ◽  
Author(s):  
Afreen Sultana ◽  
Shakeel Ahmed ◽  
Ershad Uddin Ahmed ◽  
Abul Faisal MD. Nuruddin Chowdhury ◽  
Abul Kalam ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Peptic Ulcer ◽  
Upper Gastrointestinal Endoscopy ◽  
Histopathological Analysis ◽  
Rapid Urease Test ◽  
Status Group ◽  
Urease Test ◽  
Stool Antigen ◽  
H Pylori ◽  
Over 40 Years

Aims: Helicobacter pylori (H. pylori) is the primary causative agent of peptic ulcer in multiple developing countries, including Bangladesh. This study was designed to investigate the diagnostic value of a rapid immunochromatography-based H. Pylori stool antigen (HpSAg) test to screen H. pylori infection in Bangladeshi population. Methodology and results: A total of 140 suspected peptic ulcer patients who underwent upper gastrointestinal endoscopy at Chittagong Medical College and Hospital, Chattogram, Bangladesh, were included in the study. Histopathology, Rapid Urease Test (RUT), and Microscopic examination of the stained smears were conducted to define H. pylori positive cases. Later, stool antigen detection test was done in H. pylori positive status group, H. pylori negative status group, indeterminate status group, and healthy controls. Out of 140 peptic ulcer suspected patients, 75 (53.6%) patients were confirmed to have peptic ulcer or erosions. Although the proportion of antral erosion was 57.4% in patients who were below 40 years, the proportion decreased to 23.4% in patients over 40 years. Patients over 40 years were mostly suffering from Prepyloric erosion (42.9%). All peptic ulcer patients were also positive on histopathological analysis. However, micorscopic grading of curved bacilli and RUT found 93.3% (70/75) and 89.3% (67/75) patients positive, respectively. High sensitivity (95%), specificity (80%), and diagnostic accuracy (91%) scores for HpSAg assay was obtained in our study. Conclusions, significance and impact of studies: The HpSAg test, for a comparatively less sophisticated assay, can be efficient in detecting the presence of H. pylori pre-and post-therapy and provide more valid test results than other invasive test methods.

scholarly journals A Comparative Study between Helicobacter Pylori Antigen in Stool with Histopathology and Rapid Urease Test of Endoscopic Biopsy in PUD Patient

2021 ◽  
Vol 9 (2) ◽  
pp. 19-25
Author(s):  
Md Nazrul Islam Chowdhury ◽  
Syeed Mehbub Ul Kadir ◽  
Qamrun Naher ◽  
Lokesh Chakraborty ◽  
Mohammad Shahadat Hossain ◽  
...  
Keyword(s):  
Diagnostic Tool ◽  
Endoscopic Biopsy ◽  
Rapid Urease Test ◽  
Antigen Test ◽  
Cross Sectional ◽  
Stool Antigen Test ◽  
Ulcer Disease ◽  
Urease Test ◽  
Stool Antigen ◽  
H Pylori

Purpose: To assess stool antigen test as an early effective diagnostic tool like other methods for the diagnosis of H. pylori infection in PUD patient. Patients and Methods: This cross-sectional study was carried in a clinical pathology department of a tertiary level hospital. We included all patients with peptic ulcer disease those who were diagnosed by upper GIT endoscopy. Demographic variables and value of laboratory test including Stool antigen test, rapid urease test was studied in this study. Result: A total of eighty-six patients were undergone for endoscopy after tested for Helicobactor pylori antigen in stool. Among 86 study subjects, Male was 56 (65%) and female was 30 (35%). The Mean (±SD) age was found 38.53(±10.40) years with range from 21 to above 60 years. Stool antigen test positive in 66 (66/86, 76.74%), negative in 20 (20/86, 23.3%). Rapid Urease Test positive in 76 (76/86, 88.4%), negative in 20 (20/86, 11.6%). Histopathology positive in 65 (65/86, 75.58%), negative in 21 (21/86, 24.42%). The result was statistically highly significant (P<0.001). Conclusion: Stool antigen test (SAT) is an early effective diagnostic tool like other methods for the diagnosis of H. pylori infection in our country. CBMJ 2020 July: Vol. 09 No. 02 P: 19-25

Rapid urease test for H. pylori diagnosis: pros and cons

2010 ◽  
Vol 5 (3) ◽  
pp. 257-258 ◽  
Author(s):  
Angelo Zullo ◽  
Cesare Hassan ◽  
Silvia Trapani ◽  
Gianfranco Tammaro
Keyword(s):  
Rapid Urease Test ◽  
Urease Test ◽  
Pros And Cons ◽  
H Pylori
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