1
|
Moalla M, Chtourou L, Mnif B, Charfi S, Smaoui H, Boudabous M, Mnif L, Amouri A, Gdoura H, Hammami A, Boudawara T, Tahri N. Assessment of histology's performance compared with PCR in the diagnosis of Helicobacter pylori infection. Future Sci OA 2024; 10:FSO976. [PMID: 38817388 PMCID: PMC11137788 DOI: 10.2144/fsoa-2023-0217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 02/14/2024] [Indexed: 06/01/2024] Open
Abstract
Aim: Histology is the most widely used test to detect H. pylori. PCR is less used but allows the detection of both infection and antibiotics' resistance. Methods: We conducted a monocentric cross-sectional study, collecting 97 symptomatic patients to assess the diagnostic performance of histology in the detection of H. pylori infection compared with PCR. Results: Sensitivity of histology in comparison with PCR was 81.5% and specificity was 56.3%. A history of anti-H. pylori therapy intake, as well as the density of the bacterium on the gastric sample and the presence of gastric atrophy, were significantly correlated to the PCR's result in terms of H. pylori detection. Conclusion: Thus, histology can be considered as an efficient test compared with PCR in H. pylori detection.
Collapse
Affiliation(s)
- Manel Moalla
- Gastroenterology department, Hedi Chaker hospital, Sfax, Tunisia
| | - Lassaad Chtourou
- Gastroenterology department, Hedi Chaker hospital, Sfax, Tunisia
| | - Basma Mnif
- Microbiology department, Habib Bourguiba hospital, Sfax, Tunisia
| | - Slim Charfi
- Pathology department, Habib Bourguiba hospital, Sfax, Tunisia
| | - Hend Smaoui
- Gastroenterology department, Hedi Chaker hospital, Sfax, Tunisia
| | - Mon Boudabous
- Gastroenterology department, Hedi Chaker hospital, Sfax, Tunisia
| | - Leila Mnif
- Gastroenterology department, Hedi Chaker hospital, Sfax, Tunisia
| | - Ali Amouri
- Gastroenterology department, Hedi Chaker hospital, Sfax, Tunisia
| | - Hela Gdoura
- Gastroenterology department, Hedi Chaker hospital, Sfax, Tunisia
| | - Adnene Hammami
- Microbiology department, Habib Bourguiba hospital, Sfax, Tunisia
| | - Tahya Boudawara
- Pathology department, Habib Bourguiba hospital, Sfax, Tunisia
| | - Nabil Tahri
- Gastroenterology department, Hedi Chaker hospital, Sfax, Tunisia
| |
Collapse
|
2
|
Gao Y, Yang XJ, Zhu Y, Yang M, Gu F. Association between rosacea and helicobacter pylori infection: A meta-analysis. PLoS One 2024; 19:e0301703. [PMID: 38574094 PMCID: PMC10994334 DOI: 10.1371/journal.pone.0301703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 03/19/2024] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND AND OBJECTIVES The potential association between rosacea and a heightened prevalence of Helicobacter pylori (HP) infection has been previously suggested. However, existing studies offer inconsistent results. This systematic review and meta-analysis aimed to elucidate the relationship between rosacea and HP infection. METHODS We conducted comprehensive searches of PubMed, Embase, and Web of Science databases to identify relevant observational studies for our investigation. We utilized the random-effects model to aggregate the data to address the potential influence of heterogeneity among the studies on the outcome. RESULTS Our analysis incorporated twenty-five datasets from 23 case-control and cross-sectional studies, encompassing 51,054 rosacea patients and 4,709,074 controls without skin disease. The pooled results revealed a significantly higher prevalence of HP infection in individuals with rosacea compared to controls (odds ratio [OR]: 1.51, 95% confidence interval [CI]: 1.17-1.95, p<0.001; I2 = 79%). Subgroup analysis indicated an increased prevalence of HP infection in rosacea studies that utilized one (OR: 1.72, 95% CI: 1.11-2.66, p = 0.02; I2 = 76%) or more tests for HP infection (OR: 2.26, 95% CI: 1.29-3.98, p = 0.005; I2 = 56%). However, this association was not observed in population-based studies that determined HP infection based on prescription records for HP eradication drugs (OR: 0.90, 95% CI: 0.76-1.07, p = 0.024; I2 = 54%). CONCLUSION Rosacea may be significantly associated with a higher prevalence of HP infection. High-quality prospective studies with delicately controlled confounding factors are needed to determine if HP infection is a risk factor for rosacea.
Collapse
Affiliation(s)
- Ying Gao
- Department of Dermatology, Children’s Hospital Capital Institute of Pediatrics, Beijing, China
| | - Xiao-jing Yang
- Department of Dermatology, Children’s Hospital Capital Institute of Pediatrics, Beijing, China
| | - Yun Zhu
- Department of Dermatology, Children’s Hospital Capital Institute of Pediatrics, Beijing, China
| | - Ming Yang
- Department of Dermatology, Children’s Hospital Capital Institute of Pediatrics, Beijing, China
| | - Fei Gu
- Department of Dermatology, Children’s Hospital Capital Institute of Pediatrics, Beijing, China
| |
Collapse
|
3
|
Dyankov G, Eftimov T, Hikova E, Najdenski H, Kussovski V, Genova-Kalou P, Mankov V, Kisov H, Veselinov P, Ghaffari SS, Kovacheva-Slavova M, Vladimirov B, Malinowski N. SPR and Double Resonance LPG Biosensors for Helicobacter pylori BabA Antigen Detection. SENSORS (BASEL, SWITZERLAND) 2024; 24:2118. [PMID: 38610328 PMCID: PMC11014364 DOI: 10.3390/s24072118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/14/2024] [Accepted: 03/24/2024] [Indexed: 04/14/2024]
Abstract
Given the medical and social significance of Helicobacter pylori infection, timely and reliable diagnosis of the disease is required. The traditional invasive and non-invasive conventional diagnostic techniques have several limitations. Recently, opportunities for new diagnostic methods have appeared based on the recent advance in the study of H. pylori outer membrane proteins and their identified receptors. In the present study we assess the way in which outer membrane protein-cell receptor reactions are applicable in establishing a reliable diagnosis. Herein, as well as in other previous studies of ours, we explore the reliability of the binding reaction between the best characterized H. pylori adhesin BabA and its receptor, the blood antigen Leb. For the purpose we developed surface plasmon resonance (SPR) and double resonance long period grating (DR LPG) biosensors based on the BabA-Leb binding reaction for diagnosing H. pylori infection. In SPR detection, the sensitivity was estimated at 3000 CFU/mL-a much higher sensitivity than that of the RUT test. The DR LPG biosensor proved to be superior in terms of accuracy and sensitivity-concentrations as low as 102 CFU/mL were detected.
Collapse
Affiliation(s)
- Georgi Dyankov
- Institute of Optical Materials and Technologies “Acad. J. Malinowski” (IOMT), Bulgarian Academy of Sciences (BAS), 109 “Acad. G. Bonchev” Str., 1113 Sofia, Bulgaria; (G.D.); (V.M.); (H.K.); (P.V.); (N.M.)
- Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, 61 Sankt Petersburg Blvd., 4000 Plovdiv, Bulgaria;
| | - Tinko Eftimov
- Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, 61 Sankt Petersburg Blvd., 4000 Plovdiv, Bulgaria;
- Photonics Research Center, Université du Québec en Outaouais, Rue 101 St-Jean Bosco, Gatineau, QC J8X 3G5, Canada;
| | - Evdokiya Hikova
- Institute of Optical Materials and Technologies “Acad. J. Malinowski” (IOMT), Bulgarian Academy of Sciences (BAS), 109 “Acad. G. Bonchev” Str., 1113 Sofia, Bulgaria; (G.D.); (V.M.); (H.K.); (P.V.); (N.M.)
| | - Hristo Najdenski
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria; (H.N.); (V.K.)
| | - Vesselin Kussovski
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria; (H.N.); (V.K.)
| | - Petia Genova-Kalou
- National Center of Infectious and Parasitic Diseases, 44A “Gen. Stoletov” Blvd., 1233 Sofia, Bulgaria;
| | - Vihar Mankov
- Institute of Optical Materials and Technologies “Acad. J. Malinowski” (IOMT), Bulgarian Academy of Sciences (BAS), 109 “Acad. G. Bonchev” Str., 1113 Sofia, Bulgaria; (G.D.); (V.M.); (H.K.); (P.V.); (N.M.)
| | - Hristo Kisov
- Institute of Optical Materials and Technologies “Acad. J. Malinowski” (IOMT), Bulgarian Academy of Sciences (BAS), 109 “Acad. G. Bonchev” Str., 1113 Sofia, Bulgaria; (G.D.); (V.M.); (H.K.); (P.V.); (N.M.)
- Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, 61 Sankt Petersburg Blvd., 4000 Plovdiv, Bulgaria;
| | - Petar Veselinov
- Institute of Optical Materials and Technologies “Acad. J. Malinowski” (IOMT), Bulgarian Academy of Sciences (BAS), 109 “Acad. G. Bonchev” Str., 1113 Sofia, Bulgaria; (G.D.); (V.M.); (H.K.); (P.V.); (N.M.)
| | - Sanaz Shoar Ghaffari
- Photonics Research Center, Université du Québec en Outaouais, Rue 101 St-Jean Bosco, Gatineau, QC J8X 3G5, Canada;
- Department of Electrical and Computer Engineering, University of Alberta, 116 St & 85 Ave, Edmonton, AB T6G 2R3, Canada
| | - Mila Kovacheva-Slavova
- Department of Gastroenterology, University Hospital Tsaritsa Ioanna-ISUL, Medical University Sofia, 8 “Byalo More” Str., 1527 Sofia, Bulgaria; (M.K.-S.); (B.V.)
| | - Borislav Vladimirov
- Department of Gastroenterology, University Hospital Tsaritsa Ioanna-ISUL, Medical University Sofia, 8 “Byalo More” Str., 1527 Sofia, Bulgaria; (M.K.-S.); (B.V.)
| | - Nikola Malinowski
- Institute of Optical Materials and Technologies “Acad. J. Malinowski” (IOMT), Bulgarian Academy of Sciences (BAS), 109 “Acad. G. Bonchev” Str., 1113 Sofia, Bulgaria; (G.D.); (V.M.); (H.K.); (P.V.); (N.M.)
| |
Collapse
|
4
|
van Trijp MPH, Rios-Morales M, Witteman B, Abegaz F, Gerding A, An R, Koehorst M, Evers B, van Dongen KCV, Zoetendal EG, Schols H, Afman LA, Reijngoud DJ, Bakker BM, Hooiveld GJ. Intraintestinal fermentation of fructo- and galacto-oligosaccharides and the fate of short-chain fatty acids in humans. iScience 2024; 27:109208. [PMID: 38420581 PMCID: PMC10901090 DOI: 10.1016/j.isci.2024.109208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/21/2023] [Accepted: 02/07/2024] [Indexed: 03/02/2024] Open
Abstract
Consumption of fructo- (FOS) and galacto-oligosaccharides (GOS) has health benefits which have been linked in part to short-chain fatty acids (SCFA) production by the gut microbiota. However, detailed knowledge of this process in the human intestine is lacking. We aimed to determine the acute fermentation kinetics of a FOS:GOS mixture in healthy males using a naso-intestinal catheter for sampling directly in the ileum or colon. We studied the fate of SCFA as substrates for glucose and lipid metabolism by the host after infusion of 13C-SCFA. In the human distal ileum, no fermentation of FOS:GOS, nor SCFA production, or bacterial cross-feeding was observed. The relative composition of intestinal microbiota changed rapidly during the test day, which demonstrates the relevance of postprandial intestinal sampling to track acute responses of the microbial community toward interventions. SCFA were vividly taken up and metabolized by the host as shown by incorporation of 13C in various host metabolites.
Collapse
Affiliation(s)
- Mara P H van Trijp
- Division of Human Nutrition and Health, Wageningen University, Wageningen 6708 WE, the Netherlands
| | - Melany Rios-Morales
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
| | - Ben Witteman
- Division of Human Nutrition and Health, Wageningen University, Wageningen 6708 WE, the Netherlands
- Hospital Gelderse Vallei, Department of Gastroenterology and Hepatology, Ede 6716 RP, the Netherlands
| | - Fentaw Abegaz
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
- Statistics and Probability Unit, University of Groningen, Groningen 9747 AG, the Netherlands
| | - Albert Gerding
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
| | - Ran An
- Laboratory of Microbiology, Wageningen University, Wageningen 6708 WE, the Netherlands
| | - Martijn Koehorst
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
| | - Bernard Evers
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
| | - Katja C V van Dongen
- Division of Toxicology, Wageningen University, Wageningen 6708 WE, the Netherlands
| | - Erwin G Zoetendal
- Laboratory of Microbiology, Wageningen University, Wageningen 6708 WE, the Netherlands
| | - Henk Schols
- Laboratory of Food Chemistry, Wageningen University, Wageningen 6708 WG, the Netherlands
| | - Lydia A Afman
- Division of Human Nutrition and Health, Wageningen University, Wageningen 6708 WE, the Netherlands
| | - Dirk-Jan Reijngoud
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
| | - Barbara M Bakker
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen 9713 GZ, the Netherlands
| | - Guido J Hooiveld
- Division of Human Nutrition and Health, Wageningen University, Wageningen 6708 WE, the Netherlands
| |
Collapse
|
5
|
Lan H, Shu W, Jiang D, Yu L, Xu G. Cas-based bacterial detection: recent advances and perspectives. Analyst 2024; 149:1398-1415. [PMID: 38357966 DOI: 10.1039/d3an02120c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Persistent bacterial infections pose a formidable threat to global health, contributing to widespread challenges in areas such as food safety, medical hygiene, and animal husbandry. Addressing this peril demands the urgent implementation of swift and highly sensitive detection methodologies suitable for point-of-care testing and large-scale screening. These methodologies play a pivotal role in the identification of pathogenic bacteria, discerning drug-resistant strains, and managing and treating diseases. Fortunately, new technology, the CRISPR/Cas system, has emerged. The clustered regularly interspaced short joint repeats (CRISPR) system, which is part of bacterial adaptive immunity, has already played a huge role in the field of gene editing. It has been employed as a diagnostic tool for virus detection, featuring high sensitivity, specificity, and single-nucleotide resolution. When applied to bacterial detection, it also surpasses expectations. In this review, we summarise recent advances in the detection of bacteria such as Mycobacterium tuberculosis (MTB), methicillin-resistant Staphylococcus aureus (MRSA), Escherichia coli (E. coli), Salmonella and Acinetobacter baumannii (A. baumannii) using the CRISPR/Cas system. We emphasize the significance and benefits of this methodology, showcasing the capability of diverse effector proteins to swiftly and precisely recognize bacterial pathogens. Furthermore, the CRISPR/Cas system exhibits promise in the identification of antibiotic-resistant strains. Nevertheless, this technology is not without challenges that need to be resolved. For example, CRISPR/Cas systems must overcome natural off-target effects and require high-quality nucleic acid samples to improve sensitivity and specificity. In addition, limited applicability due to the protospacer adjacent motif (PAM) needs to be addressed to increase its versatility. Despite the challenges, we are optimistic about the future of bacterial detection using CRISPR/Cas. We have already highlighted its potential in medical microbiology. As research progresses, this technology will revolutionize the detection of bacterial infections.
Collapse
Affiliation(s)
- Huatao Lan
- The First Dongguan Affiliated Hospital, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Molecular Immunology and Cell Therapy, School of Medical Technology, Guangdong Medical University, Dongguan 523808, China.
| | - Weitong Shu
- The First Dongguan Affiliated Hospital, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Molecular Immunology and Cell Therapy, School of Medical Technology, Guangdong Medical University, Dongguan 523808, China.
| | - Dan Jiang
- The First Dongguan Affiliated Hospital, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Molecular Immunology and Cell Therapy, School of Medical Technology, Guangdong Medical University, Dongguan 523808, China.
| | - Luxin Yu
- The First Dongguan Affiliated Hospital, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Molecular Immunology and Cell Therapy, School of Medical Technology, Guangdong Medical University, Dongguan 523808, China.
| | - Guangxian Xu
- The First Dongguan Affiliated Hospital, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Molecular Immunology and Cell Therapy, School of Medical Technology, Guangdong Medical University, Dongguan 523808, China.
| |
Collapse
|
6
|
Qi X, Kuan K, El Jabbour T, Lo Y, Liu Q, Fang Y. Retrospective analysis of discordant results between histology and other clinical diagnostic tests on helicobacter pylori infection. World J Gastrointest Endosc 2024; 16:64-71. [PMID: 38464820 PMCID: PMC10921152 DOI: 10.4253/wjge.v16.i2.64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/24/2024] [Accepted: 01/11/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND A reliable test is essential for diagnosing Helicobacter pylori (H. pylori) infection, and crucial for managing H. pylori-related diseases. Serving as an excellent method for detecting H. pylori infection, histologic examination is a test that clinicians heavily rely on, especially when complemented with immunohistochemistry (IHC). Additionally, other diagnostic tests for H. pylori, such as the rapid urease test (CLO test) and stool antigen test (SA), are also highly sensitive and specific. Typically, the results of histology and other tests align with each other. However, on rare occasions, discrepancy between histopathology and other H. pylori diagnostic tests occurs. AIM To investigate the discordance between histology and other H. pylori tests, the underlying causes, and the impact on clinical management. METHODS Pathology reports of gastric biopsies were retrieved spanning August 2013 and July 2018. Reports were included in the study only if there were other H. pylori tests within seven days of the biopsy. These additional tests include CLO test, SA, and H. pylori culture. Concordance between histopathology and other tests was determined based on the consistency of results. In instances where histology results were negative while other tests were positive, the slides were retrieved for re-assessment, and the clinical chart was reviewed. RESULTS Of 1396 pathology reports were identified, each accompanied by one additional H. pylori test. The concordance rates in detecting H. pylori infection between biopsy and other tests did not exhibit significant differences based on the number of biopsy fragments. 117 discrepant cases were identified. Only 20 cases (9 with CLO test and 11 with SA) had negative biopsy but positive results in other tests. Four cases initially stained with Warthin-Starry turned out to be positive for H. pylori with subsequent IHC staining. Among the remaining 16 true discrepant cases, 10 patients were on proton pump inhibitors before the biopsy and/or other tests. Most patients underwent treatment, except for two who were untreated, and two patients who were lost to follow-up. CONCLUSION There are rare discrepant cases with negative biopsy but positive in SA or CLO test. Various factors may contribute to this inconsistency. Most patients in such cases had undergone treatment.
Collapse
Affiliation(s)
- Xiaohua Qi
- Department of Pathology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY 10467, United States
| | - Kevin Kuan
- Department of Pathology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY 10467, United States
| | - Tony El Jabbour
- Department of Pathology, Albert Einstein College of Medicine/Montefiore Medical Center, New York, NY 10467, United States
| | - Yungtai Lo
- Department of Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, NY 10461, United States
| | - Qiang Liu
- Department of Pathology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY 10467, United States
| | - Yanan Fang
- Department of Pathology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY 10467, United States
| |
Collapse
|
7
|
Farazmand B, Shahsavan M, Eghbali F, Pazouki A, Kermansaravi M. Comparison of weight loss after Roux-en-Y gastric bypass in Helicobacter pylori-negative and Helicobacter pylori eradicated patients during five years follow-ups. Surg Endosc 2024; 38:888-893. [PMID: 38082012 DOI: 10.1007/s00464-023-10578-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 11/04/2023] [Indexed: 02/02/2024]
Abstract
PURPOSE Helicobacter pylori (HP) is the most common human infection that has affected up to 50% of the population worldwide. The relationship between HP eradication and weight loss is under debate. The present study aimed to compare weight loss outcomes after Roux-en-Y gastric bypass (RYGB) in HP-negative (HP-) and HP-eradicated (HPe) patients during five years follow-ups. METHODS This retrospective cohort study was conducted on 305 patients aged 18 and more with severe obesity, who underwent primary RYGB from February 2014 to November 2017. The HP-negative and HP-eradicated patients were evaluated for weight loss outcomes during five years follow-ups. RESULTS Patients' mean age, mean weight, and mean body mass index were 38.78 ± 9.9, 114.8 ± 13.6, and 43.37 ± 2.55, respectively. 27.2% of patients who were HP-positive were treated before RYGB. There was no significant difference between the HP- and HPe patients in terms of total weight loss percent (%TWL), 12 to 60 months after RYGB. Excess weight loss percent (%EWL) was higher in HPe patients compared to HP- patients (P = 0.04) at 12-month after RYGB. However, there was no difference in %EWL between these two groups of patients, 36 and 60 months after RYGB. CONCLUSION The results of the present study showed that TWL% had no significant difference in HP- and HPe groups during five years follow-ups after RYGB. The %EWL was higher in HPe patients only at 12 months after RYGB and the difference did not persist over time.
Collapse
Affiliation(s)
- Behnood Farazmand
- Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Masoumeh Shahsavan
- Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Foolad Eghbali
- Department of Surgery, Minimally Invasive Surgery Research Center, Division of Minimally Invasive and Bariatric Surgery, Rasool-E Akram Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Center of Excellence of European Branch of International Federation for Surgery of Obesity, Hazrat_e Rasool Hospital, Tehran, Iran
| | - Abdolreza Pazouki
- Department of Surgery, Minimally Invasive Surgery Research Center, Division of Minimally Invasive and Bariatric Surgery, Rasool-E Akram Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Center of Excellence of European Branch of International Federation for Surgery of Obesity, Hazrat_e Rasool Hospital, Tehran, Iran
| | - Mohammad Kermansaravi
- Department of Surgery, Minimally Invasive Surgery Research Center, Division of Minimally Invasive and Bariatric Surgery, Rasool-E Akram Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
- Center of Excellence of European Branch of International Federation for Surgery of Obesity, Hazrat_e Rasool Hospital, Tehran, Iran.
| |
Collapse
|
8
|
Ali A, AlHussaini KI. Helicobacter pylori: A Contemporary Perspective on Pathogenesis, Diagnosis and Treatment Strategies. Microorganisms 2024; 12:222. [PMID: 38276207 PMCID: PMC10818838 DOI: 10.3390/microorganisms12010222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/07/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024] Open
Abstract
Helicobacter pylori (H. pylori) is a Gram-negative bacterium that colonizes the gastric mucosa and is associated with various gastrointestinal disorders. H. pylori is a pervasive pathogen, infecting nearly 50% of the world's population, and presents a substantial concern due to its link with gastric cancer, ranking as the third most common cause of global cancer-related mortality. This review article provides an updated and comprehensive overview of the current understanding of H. pylori infection, focusing on its pathogenesis, diagnosis, and treatment strategies. The intricate mechanisms underlying its pathogenesis, including the virulence factors and host interactions, are discussed in detail. The diagnostic methods, ranging from the traditional techniques to the advanced molecular approaches, are explored, highlighting their strengths and limitations. The evolving landscape of treatment strategies, including antibiotic regimens and emerging therapeutic approaches, is thoroughly examined. Through a critical synthesis of the recent research findings, this article offers valuable insights into the contemporary knowledge of Helicobacter pylori infection, guiding both clinicians and researchers toward effective management and future directions in combating this global health challenge.
Collapse
Affiliation(s)
- Asghar Ali
- Clinical Biochemistry Laboratory, Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Khalid I. AlHussaini
- Department of Internal Medicine, College of Medicine, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 4233-13317, Saudi Arabia
| |
Collapse
|
9
|
Al-Jumaily AY, Al-Haddad A, Al-Jubori SS. New strategies for Helicobacter pylori isolation and sequencing analysis for virulence genes contributing to its pathogenicity. Mol Biol Rep 2024; 51:95. [PMID: 38194007 DOI: 10.1007/s11033-023-09038-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/28/2023] [Indexed: 01/10/2024]
Abstract
BACKGROUND Helicobacter pylori is a fastidious pathogen that is required a complicated medium for growth. Invading epithelial cells of the stomach. H. pylori virulence factors are classified by function, acidic resistivity, adhesion, chemotaxis and motility, molecular mimicry, immunological invasion and modulation, and toxins formation such as cytotoxin-associated genes A (cagA) and vacuolating cytotoxin A (vacA). This study aims to determine a simple and innovative technique to isolate H. pylori from gastric biopsies and assess pathogenicity by virulence factor gene detection. METHODS A total of 200 patients who were suspected of having H. pylori infection had two antral gastric biopsies undertaken. A rapid urease test (RUT) was used for one, and Brain Heart Infusion broth (BHI) was used to cultivate the other. The molecular study included diagnostics utilizing the 16sRNA housekeeping gene along with the identification of the virulence factors genes (cagA, cagT, and vacA) and sequencing, RESULT: Of the 200 antral gastric biopsies collected, 135 were positive rapid urease tests, and 17 H. pylori isolates were successfully obtained from 135 biopsies. The 16SrRNA as a housekeeping gene is confirmed, and about 53%, 70.5%, and 82.3% of the 17 isolates show carrying cagA, cagT, and vacA genes, respectively. All peptic ulcer isolates have the cagA gene, while Gastroesophageal Reflux Disease (GERD) and non-peptic ulcer disease (NPUD) isolates show the lack of the cagA gene. All bacteria, which were isolated from peptic ulcer, nodular gastritis, and gastritis patients, have a vacA gene. CONCLUSION The effective method for isolating H. pylori is centrifuging the transport broth after 24 h of incubation. The cagA toxin causes peptic ulcer while vacA toxin induces several histopathological changes in the stomach. Three virulence genes were present in all peptic ulcer-causing bacteria, while only one or none were present in the GERD and NPUD biopsy isolates.
Collapse
Affiliation(s)
- Asma Yahya Al-Jumaily
- Department of Biology, College of Science, Mustansiriyah University, Baghdad, 10046, Iraq
| | - Ahmed Al-Haddad
- Department of Physics, College of Science, Mustansiriyah University, Baghdad, 10046, Iraq
| | - Sawsan Sajid Al-Jubori
- Branch of Biotechnology, Department of Biology, College of Science, Mustansiriyah University, POX 10244, Baghdad, Iraq.
| |
Collapse
|
10
|
Sharma P, Adhikari S, Katila S, Bajracharya A, Bohara N, Pathak S, Poudel P, Sapkota P. Helicobacter pylori Infection among Patients Undergoing Upper Gastrointestinal Endoscopy in a Tertiary Care Center. JNMA J Nepal Med Assoc 2024; 62:5-8. [PMID: 38410016 PMCID: PMC10924496 DOI: 10.31729/jnma.8393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Indexed: 02/28/2024] Open
Abstract
Introduction Helicobacter pylori is a gram-negative gut bacterium associated with dyspepsia, peptic ulcer disease, and gastric cancer, whose prevalence is still common in developing countries. Upper gastrointestinal endoscopy is the gold standard, first-line investigation for evaluating gastrointestinal disorders. The aim of the study was to find out the prevalence of Helicobacter pylori infection among patients undergoing upper gastrointestinal endoscopy in a tertiary care centre. Methods A descriptive cross-sectional study was conducted in a tertiary health care centre among the patients undergoing upper gastrointestinal endoscopy from 5 January 2020 to 5 January 2023 after obtaining ethical approval from the Institutional Review Committee. Convenience sampling method was used. The point estimate was calculated at a 99% Confidence Interval. Results Among 1,975 patients, Helicobacter pylori infection was found in 561 (28.41%) (25.79-31.03, 99% Confidence Interval). The indication for upper gastrointestinal endoscopy was mostly dyspepsia 256 (45.68%) followed by abdominal pain 205 (36.54%). The most common endoscopic finding was gastritis 445 (79.32%) followed by hiatal hernia 93 (16.58%). The commonest biopsy finding was chronic active gastritis 478 (85.20%). Conclusions The prevalence of Helicobacter pylori infection among patients undergoing upper gastrointestinal endoscopy was found to be similar to other studies done in similar settings. The persistence of H. pylori emphasizes the need of continuous research to address ever evolving H. pylori infections and resistance that are developing against available treatment modalities. Keywords endoscopy; Helicobacter pylori; upper gastrointestinal tract.
Collapse
Affiliation(s)
- Pasanda Sharma
- Department of Internal Medicine, Kathmandu University School of Medical Sciences, Dhulikhel, Kavrepalanchok, Nepal
| | - Samyog Adhikari
- Kathmandu University School of Medical Sciences, Dhulikhel, Kavrepalanchok, Nepal
| | - Shreesuna Katila
- Kathmandu University School of Medical Sciences, Dhulikhel, Kavrepalanchok, Nepal
| | - Aashra Bajracharya
- Kathmandu University School of Medical Sciences, Dhulikhel, Kavrepalanchok, Nepal
| | - Nidhi Bohara
- Kathmandu University School of Medical Sciences, Dhulikhel, Kavrepalanchok, Nepal
| | - Sujan Pathak
- Kathmandu University School of Medical Sciences, Dhulikhel, Kavrepalanchok, Nepal
| | - Priyanka Poudel
- Kathmandu University School of Medical Sciences, Dhulikhel, Kavrepalanchok, Nepal
| | - Prakash Sapkota
- Department of Internal Medicine, Kathmandu University School of Medical Sciences, Dhulikhel, Kavrepalanchok, Nepal
| |
Collapse
|
11
|
Haider SI, Akhtar N, Saleem M, Ahmed S, Nadeem S, Amjad M, Ul Haq F. Diagnosis of ''Helicobacter pylori infection of the gastric biopsy'' by rapid urease test, histopathology and Raman spectroscopy. Diagn Microbiol Infect Dis 2024; 108:116129. [PMID: 37952308 DOI: 10.1016/j.diagmicrobio.2023.116129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/19/2023] [Accepted: 11/04/2023] [Indexed: 11/14/2023]
Abstract
This study aim to investigate the diagnostic potential of Raman spectroscopy in comparison with rapid urease test and histopathology in diagnosis of H. pylori infection. A comparative study was conducted at Pathology Laboratory and a total of 94 samples were collected from patients based on Rome IV criteria. Sensitivity, specificity and accuracy of histopathology, rapid urease test and for Raman spectroscopy were investigated. Rapid urease test showed 23 false negative results of H. pylori as compared to Raman spectroscopy and histopathology. We concluded that Raman spectroscopy showed sensitivity (94.5%), accuracy (94.0%) and specificity of (87.5%) in the diagnosis of H. pylori infection. However rapid urease test showed specificity of 92.5% while low sensitivity 75%, and 78% accuracy as compared to Raman spectroscopy and histopathology . This study illustrates the applicability of Raman spectroscopy as a potent innovative detection tool for the molecular detection of H. pylori infection in gastritis.
Collapse
Affiliation(s)
- Syed Iqbal Haider
- Department of Pathology, Rawalpindi Medical University, Rawalpindi, Pakistan
| | - Naeem Akhtar
- Department of Pathology, Rawalpindi Medical University, Rawalpindi, Pakistan
| | - Muhammad Saleem
- National Institute of Lasers and Optronics, of Pathology, CMH Lahore, Pakistan
| | - Sheraz Ahmed
- Islamic International Medical College, Rawalpindi, Punjab, Pakistan
| | - Shiza Nadeem
- Islamic International Medical College, Rawalpindi, Punjab, Pakistan
| | - Maham Amjad
- Department of Human Genetics and Molecular Biology, University of Health Sciences, Lahore, Pakistan
| | - Faiz Ul Haq
- Department of Microbiology, University of Health Sciences, Lahore, Pakistan.
| |
Collapse
|
12
|
Santos LKDS, Apolonio JS, Cuzzuol BR, da Costa BT, Lima de Souza Gonçalves V, da Silva Júnior RT, Luz MS, Lemos FFB, Pinheiro SLR, Freire de Melo F. Helicobacter pylori infection in pregnant women: Gastrointestinal symptoms and pregnancy- related disorders. World J Clin Infect Dis 2023; 13:49-57. [DOI: 10.5495/wjcid.v13.i5.49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/21/2023] [Accepted: 12/07/2023] [Indexed: 12/27/2023] Open
Abstract
Helicobacter pylori (H. Pylori) is a gram-negative, flagellated and spiral-shaped bacterial pathogen that impacts approximately 46% among pregnant women globally and has been associated with various maternal-fetal complications. Iron deficiency anemia, fetal growth restriction, cardiovascular diseases, and insufficient nutrient absorption can be observed in pregnant women, as well as miscarriages and pregnancy-specific hypertensive disease, such as pre-eclampsia. Thus, the evidence supports the influence of H. pylori infection on fetal implantation/placentation failure, and positive strains of the cytotoxin-associated gene A of H. Pylori were reported as the most prevalent in these conditions. However, current knowledge indicates a relationship between this infection and the occurrence of hyperemesis gravidarum, characterized by frequent nausea and vomiting. Regarding the diagnosis of this bacterial infection, non-invasive approaches such as stool antigen test, urea breath test, and serological tests are more accepted during pregnancy, as they are easy to carry out and cost-effective. Finally, the bacteria eradication therapy should consider the risks and benefits for the pregnant woman and her child, with pharmacological intervention depending on the clinical presentation.
Collapse
Affiliation(s)
- Luana Kauany de Sá Santos
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029-094, Bahia, Brazil
| | - Jonathan Santos Apolonio
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029-094, Bahia, Brazil
| | - Beatriz Rocha Cuzzuol
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029-094, Bahia, Brazil
| | - Bruna Teixeira da Costa
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029-094, Bahia, Brazil
| | | | | | - Marcel Silva Luz
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029-094, Bahia, Brazil
| | - Fabian Fellipe Bueno Lemos
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029-094, Bahia, Brazil
| | - Samuel Luca Rocha Pinheiro
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029-094, Bahia, Brazil
| | - Fabrício Freire de Melo
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029-094, Bahia, Brazil
| |
Collapse
|
13
|
Peng YH, Feng X, Zhou Z, Yang L, Shi YF. Helicobacter pylori infection in Xinjiang Uyghur Autonomous Region: Prevalence and analysis of related factors. World J Gastroenterol 2023; 29:5834-5847. [PMID: 38074913 PMCID: PMC10701308 DOI: 10.3748/wjg.v29.i43.5834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 10/10/2023] [Accepted: 10/29/2023] [Indexed: 11/20/2023] Open
Abstract
BACKGROUND 14C urea breath test (14C UBT) and immunohistochemical staining (IHC) are widely used for detection Helicobacter pylori (H. pylori) infection with different sensitivity, and there is a difference in H. pylori infection rate in Uyghur and Han ethnic groups. Both need large cohort studies to evaluate the differences more accurately. AIM To analyze the difference between 14C UBT and IHC for H. pylori detection in Xinjiang Uyghur Autonomous Region and the difference between Uyghur and Han populations. METHODS There were 3944 cases of H. pylori infection detected by both IHC and 14C UBT at the same time (interval < 1 wk, with sampling site including gastric antrum, selected from 5747 patients). We compared the sensitivity of 14C UBT and IHC. We also compared 555 pairs of Han/Uyghur cases (completely matched for gender and age) for their H. pylori infection rates. The overall H. pylori infection rate of all 5747 cases and the correlation with other clinicopathological data were also further analyzed. SPSS V23.0 software was used for statistical analysis. RESULTS The sensitivity was 94.9% for 14C UBT and 65.1% for IHC, which was a significant difference (n = 3944, P < 0.001). However, among those cases negative for H. pylori by 14C UBT (detection value ≤ 100), 4.8% were positive by IHC. Combining both methods, the overall H. pylori infection rate was 48.6% (n = 5747), and differences in gender, age group, ethnicity and region of residence significantly affected the H. pylori positive rates. According to age group (Han/Uyghur), the positive rates were ≤ 30 years (62.2%/100.0%), 31-40 years (45.2%/85.7%), 41-50 years (47.2%/79.2%), 51-60 years (44.6%/76.1%), 61-70 years (40.9%/68.2%), 71-80 years (41.7%/54.1%) and ≥ 81 years (42.9%/NA). The H. pylori infection rates of Han/Uyghur paired cases were 41.4% and 73.3%, which was a significant difference (P < 0.001) (555 pairs). H. pylori positivity was significantly related to moderate-severe grade 2-3 chronic/active gastritis and intestinal metaplasia (all P < 0.05). CONCLUSION The sensitivity of 14C UBT was significantly higher, but combined application can still increase the accuracy. The prevention H. pylori should be emphasized for Uygur and young people.
Collapse
Affiliation(s)
- Yu-Hua Peng
- Department of Pathology, Traditional Chinese Medical Hospital of Xinjiang Uygur Autonomous Region, The Affiliated Hospital of Traditional Chinese Medicine of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
| | - Xue Feng
- Department of Laboratory Medicine, Traditional Chinese Medical Hospital of Xinjiang Uygur Autonomous Region, The Affiliated Hospital of Traditional Chinese Medicine of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
| | - Zhong Zhou
- Department of Pathology, Traditional Chinese Medical Hospital of Xinjiang Uygur Autonomous Region, The Affiliated Hospital of Traditional Chinese Medicine of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
| | - Lei Yang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Beijing Office for Cancer Prevention and Control, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Yun-Fei Shi
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| |
Collapse
|
14
|
Lin YJ, Chen CC, Lee CH, Yeh CY, Jeng YM. Two-tiered deep-learning-based model for histologic diagnosis of Helicobacter gastritis. Histopathology 2023; 83:771-781. [PMID: 37522271 DOI: 10.1111/his.15018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 07/11/2023] [Accepted: 07/15/2023] [Indexed: 08/01/2023]
Abstract
AIMS Helicobacter pylori (HP) infection is the most common cause of chronic gastritis worldwide. Due to the small size of HP and limited resolution, diagnosing HP infections is more difficult when using digital slides. METHODS AND RESULTS We developed a two-tier deep-learning-based model for diagnosing HP gastritis. A whole-slide model was trained on 885 whole-slide images (WSIs) with only slide-level labels (positive or negative slides). An auxiliary model was trained on 824 areas with HP in nine positive WSIs and 446 negative WSIs for localizing HP. The whole-slide model performed well, with an area under the receiver operating characteristic curve (AUC) of 0.9739 (95% confidence interval [CI], 0.9545-0.9932). The calculated sensitivity and specificity were 93.3% and 90.1%, respectively, whereas those of pathologists were 93.3% and 84.2%, respectively. Using the auxiliary model, the highlighted areas of the localization maps had an average precision of 0.5796. CONCLUSIONS HP gastritis can be diagnosed on haematoxylin-and-eosin-stained WSIs with human-level accuracy using a deep-learning-based model trained on slide-level labels and an auxiliary model for localizing HP and confirming the diagnosis. This two-tiered model can shorten the diagnostic process and reduce the need for special staining.
Collapse
Affiliation(s)
- Yi-Jyun Lin
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | | | - Chia-Hsiang Lee
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | | | - Yung-Ming Jeng
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
- Graduate Institute of Pathology, College of Medicine, National Taiwan University, Taipei, Taiwan
| |
Collapse
|
15
|
Sousa C, Ferreira R, Santos SB, Azevedo NF, Melo LDR. Advances on diagnosis of Helicobacter pylori infections. Crit Rev Microbiol 2023; 49:671-692. [PMID: 36264672 DOI: 10.1080/1040841x.2022.2125287] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/12/2022] [Indexed: 11/09/2022]
Abstract
The association of Helicobacter pylori to several gastric diseases, such as chronic gastritis, peptic ulcer disease, and gastric cancer, and its high prevalence worldwide, raised the necessity to use methods for a proper and fast diagnosis and monitoring the pathogen eradication. Available diagnostic methods can be classified as invasive or non-invasive, and the selection of the best relies on the clinical condition of the patient, as well as on the sensitivity, specificity, and accessibility of the diagnostic test. This review summarises all diagnostic methods currently available, including the invasive methods: endoscopy, histology, culture, and molecular methods, and the rapid urease test (RUT), as well as the non-invasive methods urea breath test (UBT), serological assays, biosensors, and microfluidic devices and the stool antigen test (SAT). Moreover, it lists the diagnostic advantages and limitations, as well as the main advances for each methodology. In the end, research on the development of new diagnostic methods, such as bacteriophage-based H. pylori diagnostic tools, is also discussed.
Collapse
Affiliation(s)
- Cláudia Sousa
- CEB - Centre of Biological Engineering, University of Minho, Braga, Portugal
- LABBELS - Associate Laboratory, Braga/Guimarães, Portugal
| | - Rute Ferreira
- CEB - Centre of Biological Engineering, University of Minho, Braga, Portugal
- LABBELS - Associate Laboratory, Braga/Guimarães, Portugal
- i3S - Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
| | - Sílvio B Santos
- CEB - Centre of Biological Engineering, University of Minho, Braga, Portugal
- LABBELS - Associate Laboratory, Braga/Guimarães, Portugal
| | - Nuno F Azevedo
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - Luís D R Melo
- CEB - Centre of Biological Engineering, University of Minho, Braga, Portugal
- LABBELS - Associate Laboratory, Braga/Guimarães, Portugal
| |
Collapse
|
16
|
Alsohaibani F, Peedikayil M, Alshahrani A, Somily A, Alsulaiman R, Azzam N, Almadi M. Practice guidelines for the management of Helicobacter pylori infection: The Saudi H. pylori Working Group recommendations. Saudi J Gastroenterol 2023; 29:326-346. [PMID: 36204804 PMCID: PMC10754383 DOI: 10.4103/sjg.sjg_288_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/07/2022] [Accepted: 08/19/2022] [Indexed: 11/06/2022] Open
Abstract
The eradication rates for Helicobacter pylori globally are decreasing with a dramatic increase in the prevalence of antibiotic resistant bacteria all over the world, including Saudi Arabia. There is no current consensus on the management of H. pylori in Saudi Arabia. The Saudi Gastroenterology Association developed these practice guidelines after reviewing the local and regional studies on the management of H. pylori. The aim was to establish recommendations to guide healthcare providers in managing H. pylori in Saudi Arabia. Experts in the areas of H. pylori management and microbiology were invited to write these guidelines. A literature search was performed, and all authors participated in writing and reviewing the guidelines. In addition, international guidelines and consensus reports were reviewed to bridge the gap in knowledge when local and regional data were unavailable. There is limited local data on treatment of H. pylori. The rate of clarithromycin and metronidazole resistance is high; therefore, standard triple therapy for 10-14 days is no longer recommended in the treatment of H. pylori unless antimicrobial susceptibility testing was performed. Based on the available data, bismuth quadruple therapy for 10-14 days is considered the best first-line and second-line therapy. Culture and antimicrobial susceptibility testing should be considered following two treatment failures. These recommendations are intended to provide the most relevant evidence-based guidelines for the management of H. pylori infection in Saudi Arabia. The working group recommends further studies to explore more therapeutic options to eradicate H. pylori.
Collapse
Affiliation(s)
- Fahad Alsohaibani
- Department of Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Musthafa Peedikayil
- Department of Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | | | - Ali Somily
- Department of Pathology and Laboratory Medicine, King Saud University Medical City, Riyadh, Kingdom of Saudi Arabia
| | - Raed Alsulaiman
- Department of Medicine, King Fahad Hospital, Imam Abdulrahman bin Faisal University, Dammam, Kingdom of Saudi Arabia
| | - Nahla Azzam
- Department of Medicine, College of Medicine, King Saud University Medical City, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Majid Almadi
- Department of Medicine, College of Medicine, King Saud University Medical City, King Saud University, Riyadh, Kingdom of Saudi Arabia
- Division of Gastroenterology, McGill University Health Center, Montreal General Hospital, Montreal, QC, Canada
| |
Collapse
|
17
|
Jearth V, Rath MM, Chatterjee A, Kale A, Panigrahi MK. Drug-Resistant Helicobacter pylori: Diagnosis and Evidence-Based Approach. Diagnostics (Basel) 2023; 13:2944. [PMID: 37761310 PMCID: PMC10528400 DOI: 10.3390/diagnostics13182944] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/25/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023] Open
Abstract
Helicobacter pylori (H. pylori) is the most common chronic bacterial infection, affecting approximately half of the world's population. H. pylori is a Class I carcinogen according to the World Health Organization, and the International Agency for Research on Cancer (IARC) has linked it to 90% of stomach cancer cases worldwide. The overall pattern points to a yearly reduction in eradication rates of H. pylori with the likelihood of success further decreasing after each unsuccessful therapeutic effort. Antimicrobial resistance in Helicobacter pylori is a major public health concern and is a predominant cause attributed to eradication failure. As a result, determining H. pylori's antibiotic susceptibility prior to the administration of eradication regimens becomes increasingly critical. Detecting H. pylori and its antimicrobial resistance has traditionally been accomplished by time-consuming culture and phenotypic drug susceptibility testing. The resistance of H. pylori to different antibiotics is caused by various molecular mechanisms, and advances in sequencing technology have greatly facilitated the testing of antibiotic susceptibility to H. pylori. This review will summarize H. pylori antibiotic resistance patterns, mechanisms, and clinical implications. We will also review the pros and cons of current antibiotic susceptibility testing methods. Along with a comparison of tailored susceptibility-guided regimens and empirical therapy based on the latest evidence, an evidence-based approach to such situations will be explored.
Collapse
Affiliation(s)
- Vaneet Jearth
- Post Graduate Institute Medical Education and Research, Chandigarh 160012, India; (V.J.); (A.C.)
| | | | - Abhirup Chatterjee
- Post Graduate Institute Medical Education and Research, Chandigarh 160012, India; (V.J.); (A.C.)
| | - Aditya Kale
- Tata Memorial Hospital, Mumbai 400012, India;
| | | |
Collapse
|
18
|
Lim KPK, Lee AJL, Jiang X, Teng TZJ, Shelat VG. The link between Helicobacter pylori infection and gallbladder and biliary tract diseases: A review. Ann Hepatobiliary Pancreat Surg 2023; 27:241-250. [PMID: 37357161 PMCID: PMC10472116 DOI: 10.14701/ahbps.22-056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 03/02/2023] [Accepted: 03/08/2023] [Indexed: 06/27/2023] Open
Abstract
Helicobacter pylori is a gram-negative pathogen commonly associated with peptic ulcer disease and gastric cancer. H. pylori infection has also been reported in cholelithiasis, cholecystitis, gallbladder polyps, and biliary tract cancers. However, the association between H. pylori and gallbladder and biliary tract pathologies remains unclear due to the paucity of literature. In response to the current literature gap, we aim to review and provide an updated summary of the association between H. pylori with gallbladder and biliary tract diseases and its impact on their clinical management. Relevant peer-reviewed studies were retrieved from Medline, PubMed, Embase, and Cochrane databases. We found that H. pylori infection was associated with cholelithiasis, chronic cholecystitis, biliary tract cancer, primary sclerosing cholangitis, and primary biliary cholangitis but not with gallbladder polyps. While causal links have been reported, prospective longitudinal studies are required to conclude the association between H. pylori and gallbladder pathologies. Clinicians should be aware of the implications that H. pylori infection has on the management of these diseases.
Collapse
Affiliation(s)
- Klay Puay Khim Lim
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Aaron Jia Loong Lee
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Xiuting Jiang
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Thomas Zheng Jie Teng
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
- Department of General Surgery, Tan Tock Seng Hospital, Singapore
| | - Vishal G. Shelat
- Department of General Surgery, Tan Tock Seng Hospital, Singapore
| |
Collapse
|
19
|
Ng HY, Leung WK, Cheung KS. Antibiotic Resistance, Susceptibility Testing and Stewardship in Helicobacter pylori Infection. Int J Mol Sci 2023; 24:11708. [PMID: 37511471 PMCID: PMC10380565 DOI: 10.3390/ijms241411708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/12/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
Despite the declining trend of Helicobacter pylori (H. pylori) prevalence around the globe, ongoing efforts are still needed to optimize current and future regimens in view of the increasing antibiotic resistance. The resistance of H. pylori to different antibiotics is caused by different molecular mechanisms, and advancements in sequencing technology have come a far way in broadening our understanding and in facilitating the testing of antibiotic susceptibility to H. pylori. In this literature review, we give an overview of the molecular mechanisms behind resistance, as well as discuss and compare different antibiotic susceptibility tests based on the latest research. We also discuss the principles of antibiotic stewardship and compare the performance of empirical therapies based on up-to-date resistance patterns and susceptibility-guided therapies in providing effective H. pylori treatment. Studies and clinical guidelines should ensure that the treatment being tested or recommended can reliably achieve a pre-agreed acceptable level of eradication rate and take into account the variations in antibiotic resistance across populations. Local, regional and international organizations must work together to establish routine antibiotic susceptibility surveillance programs and enforce antibiotic stewardship in the treatment of H. pylori, so that it can be managed in a sustainable and efficient manner.
Collapse
Affiliation(s)
- Ho-Yu Ng
- School of Clinical Medicine, The University of Hong Kong, Hong Kong, China
| | - Wai K Leung
- Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, China
| | - Ka-Shing Cheung
- Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, China
- Department of Medicine, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518053, China
| |
Collapse
|
20
|
Wang Y, Chen Q, Wang Y, Tu F, Chen X, Li J, Liu Z. A time-resolved fluorescent microsphere-lateral flow immunoassay strip assay with image visual analysis for quantitative detection of Helicobacter pylori in saliva. Talanta 2023; 256:124317. [PMID: 36753885 DOI: 10.1016/j.talanta.2023.124317] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/11/2023] [Accepted: 01/29/2023] [Indexed: 02/01/2023]
Abstract
Helicobacter pylori (H. pylori) is a kind of microaerobic and food-borne pathogen. More than 4.4 billion individuals have been infected by H. pylori and H. pylori was listed as Group I carcinogen by WHO in 1994. Considering the high infection rate of H. pylori and the limited medical resources, self-testing is helpful for diagnosis and timely treatment. Although the amount of H. pylori in human saliva is low, the sampling of saliva is simple and convenient compared with stomach, blood and stool samples. Therefore, H. pylori in human saliva can be an indicator for self-testing, and a sensitive and easy-to-use assay is necessary. In this study, we developed a time-resolved fluorescent microsphere-lateral flow immunoassay (TRFM-LFIA) strip assay with image visual analysis for detection of H. pylori in saliva. The detection of the TRFM-LFIA strip was easy to use and had a low dependency on equipment. With optimized preparation and detection parameters, the whole detection process could be finished in 8 min and the LOD by naked eyes was 102 CFU/mL. For quantitative analysis by image visual analysis, the LOD was as low as 1.05 CFU/mL in the linear range of 101-105 CFU/mL. Besides, the TRFM-LFIA strip also had good stability, reliability, repeatability and accuracy. All these advantages indicated that the TRFM-LFIA strips developed in this study had a good potential for self-testing for H. pylori infection.
Collapse
Affiliation(s)
- Yilu Wang
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Qiming Chen
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Yingying Wang
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Fangmin Tu
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Xiaodi Chen
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Junhai Li
- Department of Oncology, No. 215 Hospital of Shaanxi Nuclear Industry, Xianyang City, Shaanxi Province, 712000, China.
| | - Zhanmin Liu
- School of Life Sciences, Shanghai University, Shanghai, 200444, China.
| |
Collapse
|
21
|
Urgessa NA, Geethakumari P, Kampa P, Parchuri R, Bhandari R, Alnasser AR, Akram A, Kar S, Osman F, Mashat GD, Tran HHV, Arcia Franchini AP. A Comparison Between Histology and Rapid Urease Test in the Diagnosis of Helicobacter Pylori in Gastric Biopsies: A Systematic Review. Cureus 2023; 15:e39360. [PMID: 37362532 PMCID: PMC10285112 DOI: 10.7759/cureus.39360] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 05/22/2023] [Indexed: 06/28/2023] Open
Abstract
Helicobacter pylori (H. pylori) is a gram-negative aerobic pathogen that primarily colonizes the gastric mucosa. Peptic ulcer disease, atrophic gastritis, gastric cancer, and mucosal-associated lymphoid tissue lymphoma have all been linked to chronic H. pylori infection. Hence, it is critical to diagnose and treat it as early as possible. There are both invasive and noninvasive tests available to detect it. In this review, the diagnostic abilities of two invasive tests - histology and the rapid urease test (RUT) - are compared in a variety of clinical situations. This systematic review was carried out using the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) 2020 checklist. We performed a literature search using the PubMed and Google Scholar databases in accordance with the eligibility criteria and ultimately selected eight articles for final analysis. The Newcastle-Ottawa scale adapted for cross-sectional studies, the Scale for the Assessment of Narrative Review Articles (SANRA), and the PRISMA 2020 checklist were used to assess the quality of selected articles for cross-sectional studies, traditional literature reviews, and systematic reviews, respectively. According to the findings of the review, both histology and the RUT have high sensitivity and specificity in diagnosing H. pylori though this varies depending on the clinical situation, making one test superior to the other. Neither of these tests can be considered the gold standard method on its own. Hence, using at least two diagnostic tests at the same time is critical for ensuring high sensitivity and specificity while accurately diagnosing the pathogen.
Collapse
Affiliation(s)
- Neway A Urgessa
- Pathology, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Prabhitha Geethakumari
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Prathima Kampa
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Rakesh Parchuri
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Renu Bhandari
- Internal Medicine/Family Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
- Internal Medicine, Manipal College of Medical Sciences, Kaski, NPL
| | - Ali R Alnasser
- General Surgery, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Aqsa Akram
- Internal Medicine, Dallah Hospital, Riyadh, SAU
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Saikat Kar
- Neurosciences and Psychology, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Fatema Osman
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Ghadi D Mashat
- Pediatrics, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Hadrian Hoang-Vu Tran
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Ana P Arcia Franchini
- Research, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| |
Collapse
|
22
|
Mei J, Wang D, Zhang Y, Wu D, Cui J, Gan M, Liu P. Portable Paper-Based Nucleic Acid Enrichment for Field Testing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205217. [PMID: 36797206 PMCID: PMC10104631 DOI: 10.1002/advs.202205217] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 01/15/2023] [Indexed: 05/22/2023]
Abstract
Point-of-care testing (POCT) can be the method of choice for detecting infectious pathogens; these pathogens are responsible for not only infectious diseases such as COVID-19, but also for certain types of cancers. For example, infections by human papillomavirus (HPV) or Helicobacter pylori (H. pylori) are the main cause of cervical and stomach cancers, respectively. COVID-19 and many cancers are treatable with early diagnoses using POCT. A variety of nucleic acid testing have been developed for use in resource-limited environments. However, questions like unintegrated nucleic acid extraction, open detection systems increase the risk of cross-contamination, and dependence on expensive equipment and alternating current (AC) power supply, significantly limit the application of POCT, especially for on-site testing. In this paper, a simple portable platform is reported capable of rapid sample-to-answer testing within 30 min based on recombinase polymerase amplification (RPA) at a lower temperature, to detect SARS-CoV-2 virus and H. pylori bacteria with a limit of detection as low as 4 × 102 copies mL-1 . The platform used a battery-powered portable reader for on-chip one-pot amplification and fluorescence detection, and can test for multiple (up to four) infectious pathogens simultaneously. This platform can provide an alternative method for fast and reliable on-site diagnostic testing.
Collapse
Affiliation(s)
- Junyang Mei
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
- Central LaboratoryRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| | - Dandan Wang
- CAS Key Laboratory of Nano‐Bio InterfaceSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Yiheng Zhang
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
- Central LaboratoryRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| | - Dan Wu
- CAS Key Laboratory of Nano‐Bio InterfaceSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Jinhui Cui
- CAS Key Laboratory of Nano‐Bio InterfaceSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Mingzhe Gan
- CAS Key Laboratory of Nano‐Bio InterfaceSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Peifeng Liu
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
- Central LaboratoryRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| |
Collapse
|
23
|
Duan M, Li Y, Liu J, Zhang W, Dong Y, Han Z, Wan M, Lin M, Lin B, Kong Q, Ding Y, Yang X, Zuo X, Li Y. Transmission routes and patterns of helicobacter pylori. Helicobacter 2023; 28:e12945. [PMID: 36645421 DOI: 10.1111/hel.12945] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 11/20/2022] [Accepted: 12/21/2022] [Indexed: 01/17/2023]
Abstract
BACKGROUND AND OBJECTIVE Helicobacter pylori (H. pylori), a gram-negative bacterium that colonizes the stomach, can cause chronic gastritis and peptic ulcers, as well as gastric cancer as a Class I carcinogen. However, the modes of H. pylori transmission are not clear. This review aims to clarify the transmission routes and patterns of H. pylori and identify efficacious prevention measures. METHODS Studies of H. pylori transmission were identified using PubMed, the Web of Science, and Cochrane Central; the retrieval deadline was October 2022. RESULTS The transmission routes of H. pylori are discussed, focusing on the five primary transmission routes, namely fecal-oral, oral-oral, gastric-oral, anal-oral, and genital-oral. We propose that H. pylori is contracted through multiple transmission routes. Additionally, we summarize the key transmission patterns of H. pylori, including person-to-person and animal-to-human transmission, as well as foodborne and occupational exposure. CONCLUSION Fecal-oral appears to be the most common H. pylori transmission routes. Although the oral-oral pathway is also important, the evidence does not support that this route of transmission is universal. The gastric-oral route occurs primarily in children and patients who are prone to vomiting. Meanwhile, the anal-oral and genital-oral routes remain hypothetical. Person-to-person and foodborne infections represent the predominant transmission patterns of H. pylori, whereas strong environmental and occupational limitations are associated with animal-to-human and occupational exposure.
Collapse
Affiliation(s)
- Miao Duan
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital of Shandong University, Jinan, China
| | - Yueyue Li
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital of Shandong University, Jinan, China
| | - Jing Liu
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital of Shandong University, Jinan, China
| | - Wenlin Zhang
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital of Shandong University, Jinan, China
| | - Yi Dong
- Center for Reproductive Medicine, Shandong University, Jinan, China
| | - Zhongxue Han
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital of Shandong University, Jinan, China
| | - Meng Wan
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital of Shandong University, Jinan, China
| | - Minjuan Lin
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital of Shandong University, Jinan, China
| | - Boshen Lin
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital of Shandong University, Jinan, China
| | - Qingzhou Kong
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital of Shandong University, Jinan, China
| | - Yuming Ding
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital of Shandong University, Jinan, China
| | - Xiaoyun Yang
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, China
| | - Xiuli Zuo
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital of Shandong University, Jinan, China
| | - Yanqing Li
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital of Shandong University, Jinan, China
| |
Collapse
|
24
|
Zhu Y, Lin C, Xu H, Xia Z, Yang W, Tang H, Hu X, Jiang T, Liu Z, Shen J. Establishment and Methodological Evaluation of a Method for Rapid Detection of Helicobacter pylori and Virulence Genes Based on CRISPR-Cas12a. Infect Drug Resist 2023; 16:435-443. [PMID: 36721635 PMCID: PMC9884559 DOI: 10.2147/idr.s398098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 01/18/2023] [Indexed: 01/26/2023] Open
Abstract
Introduction More than half of the world's people are infected or have been infected with Helicobacter pylori. This infection is related to many diseases, with its pathogenicity related to virulence factors. Therefore, the rapid diagnosis of H. pylori and genotyping of virulence genes play an extremely important role in the clinical treatment and control of transmission. Methods To this end, we developed a molecular detection method based on RPA- CRISPR-Cas12a technology for the specific genes 16S rDNA gene, cytotoxin associated gene A(cagA), and vacuolating cytotoxin A (vacA) of H. pylori. Results The results of which were displayed by lateral flow strips. Macroscopic observation takes only about 25 minutes and the sensitivity is 2ng/microliter. Discussion The method is simple, convenient to operate and has low costs, and can therefore be applied widely to the detection and typing of H. pylori in various environments such as primary hospitals, community clinics, outdoors, and large medical institutions.
Collapse
Affiliation(s)
- Yi Zhu
- The First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China,Anhui Public Health Clinical Center, Hefei, People’s Republic of China
| | - Chunhui Lin
- The First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China,Anhui Public Health Clinical Center, Hefei, People’s Republic of China
| | - Huaming Xu
- The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, People’s Republic of China
| | - Zhaoxin Xia
- The First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China,Anhui Public Health Clinical Center, Hefei, People’s Republic of China
| | - Wensu Yang
- The First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China,Anhui Public Health Clinical Center, Hefei, People’s Republic of China
| | - Hao Tang
- The Second Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China
| | - Xinyi Hu
- The First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China,Anhui Public Health Clinical Center, Hefei, People’s Republic of China
| | - Tong Jiang
- The First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China,Anhui Public Health Clinical Center, Hefei, People’s Republic of China
| | - Zhen Liu
- The First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China,Anhui Public Health Clinical Center, Hefei, People’s Republic of China
| | - Jilu Shen
- The First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China,Anhui Public Health Clinical Center, Hefei, People’s Republic of China,Correspondence: Jilu Shen, Tel +86 151 5515 2963, Email ;
| |
Collapse
|
25
|
Galoș F, Boboc C, Ieșanu MI, Anghel M, Ioan A, Iana E, Coșoreanu MT, Boboc AA. Antibiotic Resistance and Therapeutic Efficacy of Helicobacter pylori Infection in Pediatric Patients-A Tertiary Center Experience. Antibiotics (Basel) 2023; 12:antibiotics12010146. [PMID: 36671347 PMCID: PMC9854557 DOI: 10.3390/antibiotics12010146] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 01/13/2023] Open
Abstract
One of the most widespread bacterial infections worldwide, Helicobacter pylori is thought to affect almost half of the world's population. Due to rising antibiotic resistance, treatment should be tailored according to antibiotic susceptibility testing (AST). This study aims to evaluate Helicobacter pylori antibiotic resistance and its therapeutic efficacy in children. We conducted a prospective, single-center study, that evaluated 68 children referred for upper gastrointestinal endoscopy (UGE) following chronic dyspeptic syndrome. Each patient underwent multiple biopsies to perform bacterial cultures with AST and histopathological examinations for the diagnosis. Patients without antibiotic resistance or negative cultures received a 10-day sequential therapy, while the others had the antibiotic regimen tailored based on AST. Fifty-nine patients with a positive biopsy-based diagnosis (24 males) were finally included. Bacterial cultures with AST were positive for 13 patients (22.03%) and the antibiotic resistance for clarithromycin was 15.38%. Fifty-seven patients were administered sequential therapy with an eradication rate of 94.73%. Clarithromycin-resistant patients were successfully treated with 10-day triple therapy of esomeprazole, amoxicillin, and metronidazole. Although bacterial cultures had a low positivity rate, sequential therapy had a successful eradication rate. Further studies are necessary to better assess Helicobacter pylori antibiotic resistance to provide tailored treatment and identify children that need closer monitoring.
Collapse
Affiliation(s)
- Felicia Galoș
- Department of Pediatrics, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of Pediatrics, Marie Curie Emergency Children’s Hospital, 041451 Bucharest, Romania
| | - Cătălin Boboc
- Department of Pediatrics, Marie Curie Emergency Children’s Hospital, 041451 Bucharest, Romania
| | - Mara-Ioana Ieșanu
- Department of Pediatrics, Marie Curie Emergency Children’s Hospital, 041451 Bucharest, Romania
- Department of Functional Sciences, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Correspondence:
| | - Mălina Anghel
- Department of Pediatrics, Marie Curie Emergency Children’s Hospital, 041451 Bucharest, Romania
| | - Andreea Ioan
- Department of Pediatrics, Marie Curie Emergency Children’s Hospital, 041451 Bucharest, Romania
| | - Elena Iana
- Department of Pediatrics, Marie Curie Emergency Children’s Hospital, 041451 Bucharest, Romania
| | - Maria Teodora Coșoreanu
- Department of Pediatrics, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of Pediatrics, Marie Curie Emergency Children’s Hospital, 041451 Bucharest, Romania
| | - Anca Andreea Boboc
- Department of Pediatrics, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of Pediatrics, Marie Curie Emergency Children’s Hospital, 041451 Bucharest, Romania
| |
Collapse
|
26
|
Liu W, Lu G, Wang Y, Chen Z, Gao Y, Yin Z, Wu Y, Lv X, Guo P, Zhao Y. A novel loop-mediated isothermal amplification-lateral flow dipstick method for Helicobacter pylori detection. Front Microbiol 2023; 14:1094600. [PMID: 37032891 PMCID: PMC10076779 DOI: 10.3389/fmicb.2023.1094600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 02/27/2023] [Indexed: 04/11/2023] Open
Abstract
Introduction To eradicate Helicobacter pylori (H. pylori) and reduce the risk of gastric cancer, a sensitive, specific, convenient, and simple detection method is needed. This study aimed to establish a novel loop-mediated isothermal amplification-lateral flow dipstick (LAMP-LFD) method for H. pylori detection. Methods LAMP primer design software was used to design primers for the conserved sites of the H. pylori ureB gene. UreB-FIP-labeled biotin was used for LAMP amplification, and FAM-labeled probes were specifically hybridized with LAMP amplification products, which were then detected by LFD. In addition, a clinical study was conducted to assess LAMP-LFD in 20 fecal samples. Results The results of the optimization indicated that H. pylori could be specifically detected by LFD without cross-reaction with other non-H. pylori bacteria when the LAMP was performed at 65°C for 60 min. The lower limit of the detection method was 102 copies/μL, which was 100 times the sensitivity of polymerase chain reaction (PCR). H. pylori-positive fecal samples were detected by LAMP-LFD in 13/20 patients. Discussion In conclusion, a new LAMP-LFD assay has been fully established and confirmed for H. pylori detection. The entire process can be completed in approximately 1.5 h, with the advantages of strong specificity, high sensitivity, and simple operation. This study provides a novel potential method for the detection of H. pylori in the clinical settings of primary hospitals and low-resource countries.
Collapse
Affiliation(s)
- Wenwen Liu
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan, Shandong, China
| | - Gang Lu
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
- Department of Clinical Microbiology Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Yu Wang
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
- Department of Clinical Microbiology Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Zhenghong Chen
- Key Laboratory of Medical Microbiology and Parasitology, Department of Microbiology, Guizhou Medical University, Guiyang, China
| | - Yunyun Gao
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Zhipeng Yin
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Yi Wu
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Xiaoqian Lv
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Pengbo Guo
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
- Department of Clinical Microbiology Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- *Correspondence: Pengbo Guo
| | - Yinghui Zhao
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
- Department of Clinical Microbiology Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- Yinghui Zhao
| |
Collapse
|
27
|
Park HE, Park S, Nizamutdinov D, Seo JH, Park JS, Jun JS, Shin JI, Boonyanugomol W, Park JS, Shin MK, Baik SC, Youn HS, Cho MJ, Kang HL, Lee WK, Jung M. Antigenic Determinant of Helicobacter pylori FlaA for Developing Serological Diagnostic Methods in Children. Pathogens 2022; 11:pathogens11121544. [PMID: 36558878 PMCID: PMC9782684 DOI: 10.3390/pathogens11121544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/23/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022] Open
Abstract
The early diagnosis of Helicobacter pylori infection is important for gastric cancer prevention and treatment. Although endoscopic biopsy is widely used for H. pylori diagnosis, an accurate biopsy cannot be performed until a lesion becomes clear, especially in pediatric patients. Therefore, it is necessary to develop convenient and accurate methods for early diagnosis. FlaA, an essential factor for H. pylori survival, shows high antigenicity and can be used as a diagnostic marker. We attempted to identify effective antigens containing epitopes of high diagnostic value in FlaA. Full-sized FlaA was divided into several fragments and cloned, and its antigenicity was investigated using Western blotting. The FlaA fragment of 1345-1395 bp had strong immunogenicity. ELISA was performed with serum samples from children by using the 1345-1395 bp recombinant antigen fragment. IgG reactivity showed 90.0% sensitivity and 90.5% specificity, and IgM reactivity showed 100% sensitivity and specificity. The FlaA fragment of 1345-1395 bp discovered in the present study has antigenicity and is of high value as a candidate antigen for serological diagnosis. The FlaA 1345-1395 bp epitope can be used as a diagnostic marker for H. pylori infection, thereby controlling various gastric diseases such as gastric cancer and peptic ulcers caused by H. pylori.
Collapse
Affiliation(s)
- Hyun-Eui Park
- Department of Microbiology, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
- Institute of Health Science, Research Institute of Life Science, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Seorin Park
- Department of Microbiology, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
- Institute of Health Science, Research Institute of Life Science, Gyeongsang National University, Jinju 52727, Republic of Korea
- BK21 Center for Human Resource Development in the Bio-Health Industry, Department of Convergence Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Damir Nizamutdinov
- Department of Microbiology, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Ji-Hyeun Seo
- Institute of Health Science, Research Institute of Life Science, Gyeongsang National University, Jinju 52727, Republic of Korea
- Department of Pediatrics, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Ji-Shook Park
- Institute of Health Science, Research Institute of Life Science, Gyeongsang National University, Jinju 52727, Republic of Korea
- Department of Pediatrics, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Jin-Su Jun
- Institute of Health Science, Research Institute of Life Science, Gyeongsang National University, Jinju 52727, Republic of Korea
- Department of Pediatrics, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Jeong-Ih Shin
- Department of Microbiology, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
- BK21 Center for Human Resource Development in the Bio-Health Industry, Department of Convergence Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Wongwarut Boonyanugomol
- Department of Sciences and Liberal Arts, Amnatcharoen Campus, Mahidol University, Amnatcharoen 37000, Thailand
| | - Jin-Sik Park
- Department of Microbiology, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Min-Kyoung Shin
- Department of Microbiology, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
- Institute of Health Science, Research Institute of Life Science, Gyeongsang National University, Jinju 52727, Republic of Korea
- BK21 Center for Human Resource Development in the Bio-Health Industry, Department of Convergence Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea
- Research Institute of Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Seung-Chul Baik
- Department of Microbiology, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
- Institute of Health Science, Research Institute of Life Science, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Hee-Shang Youn
- Institute of Health Science, Research Institute of Life Science, Gyeongsang National University, Jinju 52727, Republic of Korea
- Department of Pediatrics, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Myung-Je Cho
- Department of Microbiology, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
- Research Institute of Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Hyung-Lyun Kang
- Department of Microbiology, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
- Institute of Health Science, Research Institute of Life Science, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Woo-Kon Lee
- Department of Microbiology, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
- Research Institute of Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea
- Correspondence: (W.-K.L.); (M.J.); Tel.: +82-55-772-8082 (M.J.); Fax: +82-55-772-8089 (M.J.)
| | - Myunghwan Jung
- Department of Microbiology, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea
- Institute of Health Science, Research Institute of Life Science, Gyeongsang National University, Jinju 52727, Republic of Korea
- BK21 Center for Human Resource Development in the Bio-Health Industry, Department of Convergence Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea
- Research Institute of Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea
- Correspondence: (W.-K.L.); (M.J.); Tel.: +82-55-772-8082 (M.J.); Fax: +82-55-772-8089 (M.J.)
| |
Collapse
|
28
|
Is Helicobacter pylori eradication required after laparoscopic sleeve gastrectomy? Wideochir Inne Tech Maloinwazyjne 2022; 17:705-709. [PMID: 36818514 PMCID: PMC9909764 DOI: 10.5114/wiitm.2022.116418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 05/06/2022] [Indexed: 11/17/2022] Open
Abstract
Introduction Helicobacter pylori is the most common bacterial infection in humans. H. pylori is now known to be responsible for chronic gastritis, peptic ulcer, B-cell gastric lymphoma, and gastric adenocarcinoma. Laparoscopic sleeve gastrectomy (LSG) is increasingly preferred among surgical treatment methods in obese patients. Aim To discuss the detection and treatment of H. pylori in patients undergoing LSG surgery. Material and methods Patients who underwent biopsy with upper gastrointestinal endoscopy in the preoperative and postoperative period of LSG between 2014 and 2019 were included in the study, resulting in a sample of 162 patients who underwent preoperative and postoperative endoscopy. Endoscopic biopsies of these patients were collected in accordance with the preoperative Sydney protocol. The patients did not receive H. pylori-related eradication treatment. Endoscopy was performed to investigate dyspeptic complaints in the postoperative period. The biopsy results obtained in the endoscopy in the postoperative period were compared to those obtained in the preoperative period. Results Of the 162 patients in our study, 39 were male and 123 were female. All patients were assigned to one of two groups in the preoperative period: H. pylori (+) and H. pylori (-). H. pylori was found to be positive in 99 patients in the preoperative period. H. pylori was negative in 62 patients in the biopsy results of these patients after the LSG. H. pylori was found to be negative in 63 patients in the preoperative period, and 51 patients were H. pylori-negative in the biopsy results of these patients following LSG. These changes were found to be statistically significant when the preoperative and postoperative pathology results were evaluated (p < 0.01). Conclusions This study showed that LSG reduced the presence of H. pylori.
Collapse
|
29
|
Negovan A, Szőke AR, Mocan S, Bănescu C. Helicobacter pylori-Positive Gastric Biopsies-Association with Clinical Predictors. Life (Basel) 2022; 12:life12111789. [PMID: 36362946 PMCID: PMC9699335 DOI: 10.3390/life12111789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/26/2022] [Accepted: 11/01/2022] [Indexed: 11/09/2022] Open
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 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.
Collapse
Affiliation(s)
- Anca Negovan
- Department of Clinical Science-Internal Medicine, “George Emil Palade” University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, 540139 Târgu Mureș, Romania
- Correspondence: (A.N.); (A.-R.S.)
| | - Andreea-Raluca Szőke
- Department of Pathophysiology, “George Emil Palade” University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, 540139 Târgu Mureș, Romania
- Pathology Department, Mureș County Clinical Hospital, 540011 Târgu Mureș, Romania
- Correspondence: (A.N.); (A.-R.S.)
| | - Simona Mocan
- Pathology Department, Emergency County Hospital of Targu Mures, 540136 Târgu Mureș, Romania
| | - Claudia Bănescu
- Genetics Laboratory, Center for Advanced Medical and Pharmaceutical Research, “George Emil Palade” University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540139 Târgu Mureș, Romania
| |
Collapse
|
30
|
Huang T, Zhang R, Li J. CRISPR-Cas-based techniques for pathogen detection: Retrospect, recent advances, and future perspectives. J Adv Res 2022:S2090-1232(22)00240-5. [PMID: 36367481 PMCID: PMC10403697 DOI: 10.1016/j.jare.2022.10.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/16/2022] [Accepted: 10/22/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Early detection of pathogen-associated diseases are critical for effective treatment. Rapid, specific, sensitive, and cost-effective diagnostic technologies continue to be challenging to develop. The current gold standard for pathogen detection, polymerase chain reaction technology, has limitations such as long operational cycles, high cost, and high technician and instrumentation requirements. AIM OF REVIEW This review examines and highlights the technical advancements of CRISPR-Cas in pathogen detection and provides an outlook for future development, multi-application scenarios, and clinical translation. KEY SCIENTIFIC CONCEPTS OF REVIEW Approaches enabling clinical detection of pathogen nucleic acids that are highly sensitive, specific, cheap, and portable are necessary. CRISPR-Cas9 specificity in targeting nucleic acids and "collateral cleavage" activity of CRISPR-Cas12/Cas13/Cas14 show significant promise in nucleic acid detection technology. These methods have a high specificity, versatility, and rapid detection cycle. In this paper, CRISPR-Cas-based detection methods are discussed in depth. Although CRISPR-Cas-mediated pathogen diagnostic solutions face challenges, their powerful capabilities will pave the way for ideal diagnostic tools.
Collapse
|
31
|
Oh A, Truong H, Kim J, Rustgi SD, Abrams JA, Hur C. Cost-effectiveness of screening with polymerase chain reaction for Helicobacter pylori to prevent gastric cancer and peptic ulcers. J Gastrointest Oncol 2022; 13:2186-2196. [PMID: 36388653 PMCID: PMC9660075 DOI: 10.21037/jgo-21-911] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 06/16/2022] [Indexed: 01/21/2023] Open
Abstract
Background Helicobacter pylori (H. pylori) is a major risk factor for gastric cancer. Screening and treatment of H. pylori may reduce the risk of gastric cancer and peptic ulcer disease (PUD). Polymerase chain reaction (PCR) of gastric biopsies provides superior sensitivity and specificity for the detection of H. pylori. This study explores whether population-based H. pylori screening with PCR is cost-effective in the US. Methods A Markov cohort state-transition model was developed to compare three strategies: no screening with opportunistic eradication, 13C-UBT population screening and treating of H. pylori, and PCR population screening and treating of H. pylori. Estimates of risks and costs were obtained from published literature. Since the efficacy of H. pylori therapy in gastric cancer prevention is not certain, we broadly varied the benefit 30-100% in sensitivity analysis. Results PCR screening was cost-effective and had an incremental-cost effectiveness ratio per quality adjusted life-year (QALY) of $38,591.89 when compared to 13C-UBT strategy with an ICER of $2,373.43 per QALY. When compared to no screening, PCR population screening reduced cumulative gastric cancer incidence from 0.84% to 0.74% and reduced PUD risk from 14.8% to 6.0%. The cost-effectiveness of PCR screening was robust to most parameters in the model. Conclusions Our modeling study finds PCR screening and treating of H. pylori to be cost-effective in the prevention of gastric cancer and PUD. However, the potential negative consequences of H. pylori eradication such as antibiotic resistance could change the balance of benefits of population screening.
Collapse
Affiliation(s)
- Aaron Oh
- Albert Einstein College of Medicine, Bronx, NY, USA
| | | | - Judith Kim
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Sheila D. Rustgi
- Department of Medicine, New York Presbyterian, Columbia University Medical Center, New York, NY, USA
| | - Julian A. Abrams
- Department of Medicine, New York Presbyterian, Columbia University Medical Center, New York, NY, USA;,Herbert Irving Columbia Cancer Center, New York, NY, USA
| | - Chin Hur
- Department of Medicine, New York Presbyterian, Columbia University Medical Center, New York, NY, USA;,Herbert Irving Columbia Cancer Center, New York, NY, USA
| |
Collapse
|
32
|
Ansari S, Yamaoka Y. Helicobacter pylori Infection, Its Laboratory Diagnosis, and Antimicrobial Resistance: a Perspective of Clinical Relevance. Clin Microbiol Rev 2022; 35:e0025821. [PMID: 35404105 PMCID: PMC9491184 DOI: 10.1128/cmr.00258-21] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Despite the recent decrease in overall prevalence of Helicobacter pylori infection, morbidity and mortality rates associated with gastric cancer remain high. The antimicrobial resistance developments and treatment failure are fueling the global burden of H. pylori-associated gastric complications. Accurate diagnosis remains the opening move for treatment and eradication of infections caused by microorganisms. Although several reports have been published on diagnostic approaches for H. pylori infection, most lack the data regarding diagnosis from a clinical perspective. Therefore, we provide an intensive, comprehensive, and updated description of the currently available diagnostic methods that can help clinicians, infection diagnosis professionals, and H. pylori researchers working on infection epidemiology to broaden their understanding and to select appropriate diagnostic methods. We also emphasize appropriate diagnostic approaches based on clinical settings (either clinical diagnosis or mass screening), patient factors (either age or other predisposing factors), and clinical factors (either upper gastrointestinal bleeding or partial gastrectomy) and appropriate methods to be considered for evaluating eradication efficacy. Furthermore, to cope with the increasing trend of antimicrobial resistance, a better understanding of its emergence and current diagnostic approaches for resistance detection remain inevitable.
Collapse
Affiliation(s)
- Shamshul Ansari
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu City, Oita, Japan
| | - Yoshio Yamaoka
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu City, Oita, Japan
- Department of Medicine, Gastroenterology and Hepatology Section, Baylor College of Medicine, Houston, Texas, USA
- Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| |
Collapse
|
33
|
Wang Z, Liu Y, Peng Y, Peng L. Helicobacter pylori Infection—A Risk Factor for Irritable Bowel Syndrome? An Updated Systematic Review and Meta-Analysis. Medicina (B Aires) 2022; 58:medicina58081035. [PMID: 36013502 PMCID: PMC9413972 DOI: 10.3390/medicina58081035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/25/2022] [Accepted: 08/01/2022] [Indexed: 11/25/2022] Open
Abstract
Nowadays, the relationship between Helicobacter pylori infection (HPI) and irritable bowel syndrome (IBS) remains controversial. Objective: The aim of this study is to investigate the relationship between HPI and IBS through a systematic review and meta-analysis based on the current evidence. Methods: We performed a systematic literature search in electronic databases (PubMed, EMBASE, and the Cochrane library) by computer to identify all reports published before 8 August 2021. The odds ratio (OR) and confidence interval (CI) were calculated to evaluate the association between HPI and IBS. Subgroup analyses were conducted for further assessment and exploration of heterogeneity sources. In addition, we assessed publication bias through funnel plots, Egger’s test, and Begg’s test. Finally, we conducted a sensitivity analysis to evaluate the robustness of the results. Results: Thirteen studies with 13,173 participants were included in the meta-analysis. The pooled OR of the association between HPI and IBS was 1.03 (95% CI [0.80,1.31]; p = 0.84). The adjusted OR of the association between HPI and IBS after excluding the studies with confounding factors defined by our team was 1.29 (95% CI [1.03,1.62]; p = 0.03). We found a positive association between HPI and IBS-D (diarrhea subtype) (OR: 1.54; 95% CI [1.22,1.95]; p = 0.0003). The OR of the relationship between cytotoxin-associated gene A (Cag A) positive HPI and IBS was 4.3 (95% CI [0.51,36.17]; p = 0.18). Conclusions: The likelihood of HPI in IBS patients is relatively higher than that of non-IBS participants but not statistically significant, implying that HPI is not significantly associated with IBS, albeit we may underestimate this association. Moreover, we found a positive association between HPI and IBS-D. We also observed an increased likelihood of Cag-A positive HPI in IBS patients than that of non-IBS participants but not statistically significant.
Collapse
Affiliation(s)
- Ziyan Wang
- Department of Gastroenterology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China; (Z.W.); (Y.L.)
- The First Clinical School, Guangzhou Medical University, Guangzhou 510120, China
| | - Yuhua Liu
- Department of Gastroenterology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China; (Z.W.); (Y.L.)
- The First Clinical School, Guangzhou Medical University, Guangzhou 510120, China
| | - Yinglong Peng
- School of Medicine, South China University of Technology, Guangzhou 510006, China;
| | - Liang Peng
- Department of Gastroenterology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China; (Z.W.); (Y.L.)
- Correspondence:
| |
Collapse
|
34
|
Pih GY, Noh JH, Ahn JY, Han GS, Jung HS, Jung HY, Kim JM. Objective Interpretation of the Rapid Urease Test for Helicobacter pylori Infection Using Colorimetry. J Korean Med Sci 2022; 37:e227. [PMID: 35880503 PMCID: PMC9313973 DOI: 10.3346/jkms.2022.37.e227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 06/21/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND The rapid urease test (RUT) is a major diagnostic tool for detecting Helicobacter pylori infection. This study aimed to establish an objective method for measuring the color changes in the RUT kit to improve the test's diagnostic accuracy. METHODS A UV-visible spectrophotometer was selected as the colorimeter; experiments were conducted in three stages to objectively identify the color changes in the RUT kit. RESULTS First, the urea broth solution showed an identifiable color change from yellow to red as the pH increased by 0.2. The largest transmittance difference detected using the UV-visible spectrophotometer was observed at a 590-nm wavelength. Second, the commercialized RUT kit also showed a gradual color change according to the pH change detected using the UV-visible spectrophotometer. Third, 13 cases of negative RUT results with a biopsy specimen and 16 of positive RUT results were collected. The transmittance detected using the UV-visible spectrophotometer showed a clear division between the positive and negative RUT groups; the largest difference was observed at a 559-nm wavelength. The lowest transmittance in the negative RUT group was 64, while the highest in the positive RUT group was 56, at the 559-nm wavelength. The UV-visible spectrophotometry reading showed a consistency of 92.7% compared with that of manual reading. CONCLUSION A transmittance of 60 at a 559-nm wavelength detected using UV-visible spectrophotometer can be used as a cutoff value for interpreting RUT results; this will help develop an automatic RUT kit reader with a high accuracy.
Collapse
Affiliation(s)
- Gyu Young Pih
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jin Hee Noh
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji Yong Ahn
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| | - Gill Sang Han
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Korea.
| | - Hyun Suk Jung
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Korea
| | - Hwoon-Yong Jung
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jung Mogg Kim
- Department of Microbiology, Hanyang University College of Medicine, Seoul, Korea
| |
Collapse
|
35
|
Is Molecular Analysis Mandatory for Better Post-surgical Outcome in Sleeve Gastrectomy Specimens with Asymptomatic Helicobacter pylori Colonization? A Study from Pakistan. Jundishapur J Microbiol 2022. [DOI: 10.5812/jjm-122528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: Helicobacter pylori colonizes gastric tissue in obese patients and mostly remains undetected clinically, as histological and molecular analysis is seldom ordered in such cases. Objectives: This study aimed to detect the frequency of H. pylori using different techniques in sleeve gastrectomy specimens of obese patients with minimal or no symptoms suggestive of gastritis. Methods: This longitudinal study was carried out at Farooq Hospital Westwood Lahore, Morbid Anatomy and Histopathology Department and Resource Laboratory at the University of Health Sciences, Lahore, Pakistan, from February 2021 to September 2021. This study selected 80 cases who underwent sleeve gastrectomy within six months. Helicobacter pylori was detected by rapid urease test (RUT), modified Giemsa staining, and polymerase chain reaction (PCR) techniques. Results: Most patients (83.7%) were clinically asymptomatic, while 10% had mild and 6.3% had moderate to severe gastritis symptoms. Of the asymptomatic patients, 56.7% of biopsies showed chronic gastritis. Rapid urease test and modified Giemsa staining showed positive evidence for H. pylori in 47.3% of cases, whereas an additional 13.2% of biopsies that were negative on conventional methods showed the amplification of H. pylori DNA by PCR. Patients were discharged with proton-pump inhibitors therapy (40 mg/day) that showed no adverse post-surgical event over a follow-up of six months. Conclusions: Persistent obesity and other socioeconomic factors may lead to colonizing asymptomatic H. pylori infection. More sensitive techniques for detecting H. pylori may be employed in resource-constrained settings for better patient outcomes and to minimize the complications after sleeve gastrectomy.
Collapse
|
36
|
John JV, McCarthy A, Su Y, Ackerman DN, Shahriar SS, Carlson MA, Reid SP, Santarpia JL, Zhu W, Xie J. Nanofiber capsules for minimally invasive sampling of biological specimens from gastrointestinal tract. Acta Biomater 2022; 146:211-221. [PMID: 35513306 DOI: 10.1016/j.actbio.2022.04.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 11/01/2022]
Abstract
Accurate and rapid point-of-care tissue and microbiome sampling is critical for early detection of cancers and infectious diseases and often result in effective early intervention and prevention of disease spread. In particular, the low prevalence of Barrett's and gastric premalignancy in the Western world makes population-based endoscopic screening unfeasible and cost-ineffective. Herein, we report a method that may be useful for prescreening the general population in a minimally invasive way using a swallowable, re-expandable, ultra-absorbable, and retrievable nanofiber cuboid and sphere produced by electrospinning, gas-foaming, coating, and crosslinking. The water absorption capacity of the cuboid- and sphere-shaped nanofiber objects is shown ∼6000% and ∼2000% of their dry mass. In contrast, unexpanded semicircular and square nanofiber membranes showed <500% of their dry mass. Moreover, the swallowable sphere and cuboid were able to collect and release more bacteria, viruses, and cells/tissues from solutions as compared with unexpanded scaffolds. In addition to that, an expanded sphere shows higher cell collection capacity from the esophagus inner wall as compared with the unexpanded nanofiber membrane. Taken together, the nanofiber capsules developed in this study could provide a minimally invasive method of collecting biological samples from the duodenal, gastric, esophagus, and oropharyngeal sites, potentially leading to timely and accurate diagnosis of many diseases. STATEMENT OF SIGNIFICANCE: Recently, minimally invasive technologies have gained much attention in tissue engineering and disease diagnosis. In this study, we engineered a swallowable and retrievable electrospun nanofiber capsule serving as collection device to collect specimens from internal organs in a minimally invasive manner. The sample collection device could be an alternative endoscopy to collect the samples from internal organs like jejunum, stomach, esophagus, and oropharynx without any sedation. The newly engineered nanofiber capsule could be used to collect, bacteria, virus, fluids, and cells from the abovementioned internal organs. In addition, the biocompatible and biodegradable nanofiber capsule on a string could exhibit a great sample collection capacity for the primary screening of Barret Esophagus, acid reflux, SARS-COVID-19, Helicobacter pylori, and gastric cancer.
Collapse
|
37
|
Empiric treatment vs susceptibility-guided treatment for eradicating H. pylori: Is it possible to change that paradigm using modern molecular methods? REVISTA DE GASTROENTEROLOGÍA DE MÉXICO (ENGLISH EDITION) 2022; 87:330-341. [DOI: 10.1016/j.rgmxen.2022.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 01/06/2022] [Indexed: 11/24/2022] Open
|
38
|
The validity evaluation of different 16srRNA gene primers for helicobacter detection urgently requesting to design new specific primers. Sci Rep 2022; 12:10737. [PMID: 35750699 PMCID: PMC9232570 DOI: 10.1038/s41598-022-14600-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 06/09/2022] [Indexed: 11/30/2022] Open
Abstract
Molecular diagnosis of helicobacters by PCR is simpler, more accurate, and feasible compared to other diagnostic methods. Validity and accuracy are highly dependent on the PCR primer design, diffusion time, and mutation rate of helicobacters. This study aimed to design 16srRNA -specific primers for Helicobacter spp. and H. pylori. Application of comparative statistical analysis of the diagnostic utility of the most available 16srRNA genus-specific primers. The new primers were designed using bioinformatics tools (MAFFT MSA and Gblocks command line). A comparative study was applied on nine genus-specific 16srRNA primers in comparison to the ConsH using in silico and laboratory evaluation. The results demonstrated that the best specificity and sensitivity of the primers designed for this study compared to other primers. The comparative study revealed that the heminested outer/inner primers were the worst. Although H276, 16srRNA(a), HeliS/Heli-nest, and Hcom had acceptable diagnostic utility, false positive and false negative results were obtained. Specificity testing on clinical samples indicated a surprising result; that H. pylori was not the sole enemy that we were looking for, but the Non-Helicobacter pylori Helicobacters should be considered as a real risk prognostic for gastric diseases, consequently, a specific diagnosis and treatment should be developed. This study concluded that our designed primers were the most specific and sensitive in comparison with other primers. In addition, in silico evaluation is not accurate enough for primer assessment and that the laboratory evaluation is mandatory.
Collapse
|
39
|
Husnik R, Klimes J, Kovarikova S, Kolorz M. Helicobacter Species and Their Association with Gastric Pathology in a Cohort of Dogs with Chronic Gastrointestinal Signs. Animals (Basel) 2022; 12:ani12101254. [PMID: 35625100 PMCID: PMC9137851 DOI: 10.3390/ani12101254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 02/06/2023] Open
Abstract
Prevalence of individual Helicobacter species, data evaluating their association with gastric pathology and comparison of accuracy of diagnostic techniques are limited. The aims of this study were to determine the prevalence of gastric Helicobacter species, their association with gastric pathology, and to compare diagnostic techniques. Gastric biopsies from 84 privately-owned dogs with chronic gastrointestinal signs were obtained endoscopically. Helicobacters were detected using PCR, cytology, urease test, and histopathology. PCR detected helicobacters in 71.4% of dogs. Helicobacter heilmannii sensu stricto (s.s.) was the predominant species. Mixed infection was detected in 40% of PCR positive dogs. Gastritis was diagnosed in 38.5% of Helicobacter positive and 47.4% of Helicobacter negative dogs. Mono-infection was associated with 2.4 times increased odds of having more severe inflammation compared to mixed infection. Erosions and ulcers were common endoscopic lesions. Cytology had sensitivity/specificity of 88.3/91.7%. Association between infection and lymphoid follicular hyperplasia was demonstrated.
Collapse
Affiliation(s)
- Roman Husnik
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, 625 Harrison Street, West Lafayette, IN 47907, USA
- Correspondence:
| | - Jiri Klimes
- Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackeho 1/3, 612 42 Brno, Czech Republic;
| | - Simona Kovarikova
- Department of Animal Protection, Welfare and Behavior, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackeho 1/3, 612 42 Brno, Czech Republic;
| | - Michal Kolorz
- Department of Clinical Pharmacy, University Hospital Martin, 036 01 Martin, Slovakia;
| |
Collapse
|
40
|
Dai B, Xiang A, Qu D, Chen G, Wang L, Wang W, Zhai D, Wang L, Lu Z. Rapid and Sensitive Assay of Helicobacter pylori With One-Tube RPA-CRISPR/Cas12 by Portable Array Detector for Visible Analysis of Thermostatic Nucleic Acid Amplification. Front Microbiol 2022; 13:858247. [PMID: 35586866 PMCID: PMC9108776 DOI: 10.3389/fmicb.2022.858247] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/31/2022] [Indexed: 11/20/2022] Open
Abstract
Helicobacter pylori (H. pylori) has infected more than half of the world’s population and is still a threat to human health. The urea breath test, despite being widely used in clinical diagnosis, still faces huge challenges in the immediate detection of H. pylori. Thus, a rapid, sensitive, and highly specific point of care diagnosis is particularly important for preventing the further transmission of H. pylori and for real-time monitoring of the disease in a given population. Recently, the clustered regularly interspaced short palindromic repeats (CRISPR)-based diagnostics have been applied to various types of nucleic acid testing; however, there are often shortcomings of complex operation and high signal transmission background. In this study, we proposed a new platform for the assay of H. pylori using one-tube-based CRISPR/Cas12a diagnostic methods and designed a detector for this platform, which is a portable array detector for visible analysis of thermostatic nucleic acid amplification (Pad-VATA). By incorporating isothermal recombinase polymerase amplification, our platform could detect the conserved gene fragments of H. pylori with a constant low as 2 copies/μl. The assay process can be performed at a single temperature in about 30 min and integrated into the reactor in the palm-sized Pad-VATA to facilitate rapid diagnosis of H. pylori. We also verified the accuracy of our platform using 10 clinical samples and found that the platform can quickly detect H. pylori infection in a given population. We believe that this fast, convenient, efficient, and inexpensive screening and diagnostic platform can be widely used in various settings, including homes and clinics.
Collapse
Affiliation(s)
- Bing Dai
- The College of Life Sciences, Northwest University, Xi’an, China
- Department of Biopharmaceutics, State Key Laboratory of Cancer Biology, Air Force Medical University, Xi’an, China
| | - An Xiang
- Department of Biopharmaceutics, State Key Laboratory of Cancer Biology, Air Force Medical University, Xi’an, China
| | - Di Qu
- The College of Life Sciences, Northwest University, Xi’an, China
- Department of Biopharmaceutics, State Key Laboratory of Cancer Biology, Air Force Medical University, Xi’an, China
| | - Guo Chen
- Department of Biopharmaceutics, State Key Laboratory of Cancer Biology, Air Force Medical University, Xi’an, China
| | - Li Wang
- Department of Biopharmaceutics, State Key Laboratory of Cancer Biology, Air Force Medical University, Xi’an, China
| | - Wenwen Wang
- Department of Biopharmaceutics, State Key Laboratory of Cancer Biology, Air Force Medical University, Xi’an, China
| | - Dongsheng Zhai
- Department of Biopharmaceutics, State Key Laboratory of Cancer Biology, Air Force Medical University, Xi’an, China
| | - Lei Wang
- Department of Gastrointestinal Surgery, General Hospital of Ningxia Medical University, Ningxia, China
- *Correspondence: Lei Wang,
| | - Zifan Lu
- Department of Biopharmaceutics, State Key Laboratory of Cancer Biology, Air Force Medical University, Xi’an, China
- Zifan Lu,
| |
Collapse
|
41
|
刘 人, 陈 昱, 唐 智, 符 立, 杨 露, 王 保. [Sensitivity Comparison Experiment of Four Testing Methods for Helicobacter pylori]. SICHUAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF SICHUAN UNIVERSITY. MEDICAL SCIENCE EDITION 2022; 53:421-425. [PMID: 35642149 PMCID: PMC10409411 DOI: 10.12182/20220560504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Indexed: 06/15/2023]
Abstract
Objective To measure with standard microbiology methods the sensitivity of 4 commonly used testing methods for Helicobacter pylori (Hp) and to conduct a comparative study of the correlations and differences across the 4 methods. Methods With the Hp standard strain (SS1) as the reference, colony forming units (CFU) as the units of quantitative analysis for detection performance, and gradient dilution of SS1 suspension as the simulation sample, we measured the sensitivity of 4 Hp testing methods, including bacterial culture, rapid urease test, antigen test, and quantitative fluorescent PCR. CFU values at different concentrations corresponding to the 4 commonly used Hp testing methods were documented and the correlations and differences were analyzed accordingly. Results The sensitivity of Hp bacterial culture, rapid urease test, antigen test and quantitative fluorescent PCR was 2.0×10 CFU/mL, 2.0×10 5 CFU/mL, 2.0×10 5 CFU/mL, and 2.0×10 2 CFU/mL, respectively. Conclusion The testing turnover time and sensitivity of different laboratory methods for Hp testing varied significantly. The quantitative fluorescent PCR and bacterial culture both showed relatively high sensitivity, but bacterial culture has complicated operation procedures and is too time-consuming. The rapid urease test and antigen test both were simple and quick to perform, but showed low sensitivity. For clinical and laboratory testing of Hp, appropriate testing method that can identify the corresponding changes of Hp should be selected according to the actual testing purpose.
Collapse
Affiliation(s)
- 人捷 刘
- 四川大学华西基础医学与法医学院 病原生物学系微生物教研室 (成都 610041)Microbiology Teaching and Research Center, Department of Pathogenic Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - 昱作 陈
- 四川大学华西基础医学与法医学院 病原生物学系微生物教研室 (成都 610041)Microbiology Teaching and Research Center, Department of Pathogenic Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - 智慧 唐
- 四川大学华西基础医学与法医学院 病原生物学系微生物教研室 (成都 610041)Microbiology Teaching and Research Center, Department of Pathogenic Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - 立发 符
- 四川大学华西基础医学与法医学院 病原生物学系微生物教研室 (成都 610041)Microbiology Teaching and Research Center, Department of Pathogenic Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - 露 杨
- 四川大学华西基础医学与法医学院 病原生物学系微生物教研室 (成都 610041)Microbiology Teaching and Research Center, Department of Pathogenic Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - 保宁 王
- 四川大学华西基础医学与法医学院 病原生物学系微生物教研室 (成都 610041)Microbiology Teaching and Research Center, Department of Pathogenic Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
- 西藏农牧学院 (林芝 860000)Tibet Agricultural and Animal Husbandry College, Linzhi 860000, China
| |
Collapse
|
42
|
Systematic Retesting for Helicobacter pylori: The Potential Overestimation of Suppressive Conditions. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5380001. [PMID: 35509714 PMCID: PMC9060991 DOI: 10.1155/2022/5380001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 03/28/2022] [Indexed: 12/03/2022]
Abstract
Background and Aims In contrast to guideline recommendations, endoscopic testing for Helicobacter pylori is frequently performed under Helicobacter pylori suppressive conditions, e.g., intake of proton-pump inhibitors (PPI), preceded antibiotic treatment, or recent gastrointestinal bleeding. Our study's aim was to retest patients with—under suppressive conditions—negative test results. This was carried out in order to examine the rate of false negative tests previously gathered under suppressive conditions. Methods The trial was conducted in a large patient collective in a university hospital. Every elective esophagogastroduodenoscopy from in- and outpatients was included. Prior to endoscopy, suppressive conditions were collected via standardized questionnaire. If Helicobacter pylori testing was indicated, both helicobacter urease test and histology were performed in analogy to the Sydney classification. In case of a negative result under suppressive conditions, the patient was reinvited after, if possible, withdrawal of suppressive condition in order to perform a urea breath test (UBT). Results 1,216 patients were included (median 59 years, 72.0% inpatients, 28.0% outpatients). Overall, 60.6% (737) were under Helicobacter pylori suppressive conditions. The main suppressive condition was intake of PPIs (54.5%). In 53.7% (653) of all included cases, Helicobacter pylori testing was performed. Of those, 14.1% (92) had a positive test, and 85.9% (561) were negative. Out of the patients with negative result, 50.8% (285) were tested under suppressive conditions and consequently invited for retesting via UBT. In 20.4% (45), suppressive conditions could not be ceased. In 22.8% (65), retesting was conducted. Of those, 98.5% (64) congruently presented a negative result again, and only 1.5% (1) was positive for Helicobacter pylori. Conclusion Many patients undergoing esophagogastroduodenoscopy in everyday clinical practice are tested for Helicobacter pylori under suppressive conditions leading to a potentially higher risk of false negative results. However, our research shows that this issue might be overestimated.
Collapse
|
43
|
Khan H, Rauf F, Muhammad N, Javaid M, Alam S, Nasir S. Comparison of special stains (Giemsa stain and Modified Toluidine Blue stain) with immunohistochemistry as gold standard for the detection of H. pylori in gastric biopsies. Arab J Gastroenterol 2022; 23:75-81. [PMID: 35484045 DOI: 10.1016/j.ajg.2021.12.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 05/08/2021] [Accepted: 12/09/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND STUDY AIMS Helicobacter pylori (H. pylori) has been extensively implicated in the etiology and pathogenesis of gastric ulcers and carcinomas, which has necessitated its efficient and cost-effective identification in gastric biopsy samples. We have sought to compare various staining methods, namely, Hematoxylin and Eosin (H&E), Giemsa, and Modified Toluidine Blue (MTB), with immunohistochemistry (IHC; gold standard) in terms of efficacy, staining costs, and duration of performing the stains in settings with limited resources. PATIENTS AND METHODS Gastric biopsy specimens of 50 patients who presented with gastritis symptoms were stained with H&E, Giemsa, MTB, and IHC. The sensitivity, specificity, positive/negative predictive values, and the receiver operating characteristic curve were calculated for each stain. RESULTS In all, 32 cases of 50 were positive for H. pylori on IHC. The specificity for both H&E and Giemsa was 88.8%, whereas it was lower for MTB (83.3%). The sensitivity of H&E was much lower (46.8%) compared with the other stains (90.6% Giemsa, 93.7% MTB). The most inexpensive and time-consuming stain was H&E followed by MTB and Giemsa. CONCLUSION When H&E is used alone for H. pylori detection, a significant number of cases may be overlooked, especially mild inflammatory cases and when coccoid forms of the bacteria are present. This study proposes the use of either Giemsa or MTB as reliable alternatives for IHC in resource-limited settings to combat the high prevalence of H. pylori in the developing world.
Collapse
|
44
|
Establishment of Noninvasive Methods for the Detection of Helicobacter pylori in Mongolian Gerbils and Application of Main Laboratory Gerbil Populations in China. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6036457. [PMID: 35392259 PMCID: PMC8983185 DOI: 10.1155/2022/6036457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/20/2022] [Accepted: 02/15/2022] [Indexed: 11/17/2022]
Abstract
Identifying Helicobacter pylori (H. pylori, Hp) infection in animals before and after artificial infection influences the subsequent experiment. We established effective and noninvasive detection methods, including the gastric fluid nested polymerase chain reaction (PCR) method and the 13C-urea breath test, which can detect Hp before modeling Hp infection in Mongolian gerbils. We designed a gas collection equipment for gerbils. Hp nested PCR was also performed on gastric fluid, gastric mucosa, duodenal contents, and faeces of gerbils challenged with Hp. Conventional Hp detection methods, including rapid urease assay and immunohistochemistry, were compared. Moreover, we assessed the natural infection of Hp in 135 gerbils that had never been exposed to Hp artificially from the major laboratory gerbil groups in China. In 10 Hp infected gerbils, the positive detection results were 100%, 100%, 90%, and 10% in gastric fluid, gastric mucosa, duodenal contents, and faeces with nested PCR, respectively. A rapid urease test performed on gastric mucosa showed that all animals were infected with Hp. Immunohistochemical detection and bacteria culture of gastric mucosa samples that were positive by the nested PCR method also confirmed the presence of Hp. 9% (3/35) and 6% (2/31) natural infection rates were found in conventional gerbil groups from the Capital Medical University and Zhejiang Laboratory Animal Center. In conclusion, we established two noninvasive Hp detection methods that can be performed before modelingHp infection, including the gastric fluid nested PCR method and the 13C-urea breath test.
Collapse
|
45
|
Biénès T, Leal RO, Domínguez-Ruiz M, De Carvalho RE, Rodrigues NF, Dally C, Husson JC, Le Boedec K, Hernandez J. Association of gastric lymphofollicular hyperplasia with Helicobacter-like organisms in dogs. J Vet Intern Med 2022; 36:515-524. [PMID: 35194849 PMCID: PMC8965270 DOI: 10.1111/jvim.16387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 01/01/2023] Open
Abstract
Background The relationships among gastric lymphoid follicular hyperplasia (GLFH), Helicobacter‐like organisms (HLOs), and clinical signs have not been established in dogs. Objectives To evaluate the epidemiologic, clinical, endoscopic, and histopathologic findings associated with GLFH in dogs, and determine the association of GLFH with HLOs and the French Bulldog (FB) breed. Animals Two hundred eighty‐eight dogs that underwent gastroscopy between 2013 and 2016. Methods Retrospective, cross‐sectional study. Gastric biopsy samples were reviewed and scored for inflammation and HLOs. Dogs were divided into 3 groups: group 1 (63 FBs), group 2 (45 non‐FB brachycephalic dogs), and group 3 (180 nonbrachycephalic dogs). Variables were evaluated for their association with GLFH. Results Univariate analysis determined that intact males, young age, vomiting, gastroscopic findings (discoloration, hemorrhage, and ulcers), and histopathologic findings (gastric lamina propria lymphocytic infiltration and HLO score) were associated with GLFH (P ≤ .03). In the multivariate analysis, GLFH was associated with the HLO score (odds ratio [OR] > 5 for HLO scores 1‐2 and >15 for HLO score of 3; P < .001), with vomiting (OR > 4; P = .01) but not with FB breed (P = .76) and age (P = .1). The HLO score was associated with younger age (P < .001). Conclusion and Clinical Importance The HLO score was associated with a high GLFH score. Vomiting was associated with GLFH. Helicobacter‐like organisms are highly prevalent in young dogs and GLFH is indirectly associated with this factor. Clinical relevance of the identification of GLFH and HLO remains to be determined.
Collapse
Affiliation(s)
- Tom Biénès
- Centre Hospitalier Vétérinaire Fregis, Arcueil, France.,Department of Clinical Sciences, Faculty of Veterinary Medicine, FARAH, University of Liège, Liège, Belgium
| | - Rodolfo Oliveira Leal
- Centre Hospitalier Vétérinaire Fregis, Arcueil, France.,CIISA-Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal.,Hospital Escolar Veterinário-Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
| | - Marina Domínguez-Ruiz
- Centre Hospitalier Vétérinaire Fregis, Arcueil, France.,Hospital Clínico Veterinario de la Universidad Alfonso X el Sabio, Universidad Alfonso X el Sabio, Madrid, Spain
| | | | - Nina Fernandes Rodrigues
- Centre Hospitalier Vétérinaire Fregis, Arcueil, France.,Department of Clinical Sciences, Faculty of Veterinary Medicine, FARAH, University of Liège, Liège, Belgium
| | | | | | | | - Juan Hernandez
- Centre Hospitalier Vétérinaire Fregis, Arcueil, France.,Oniris, Department of Clinical Sciences, Nantes-Atlantic College of Veterinary Medicine and Food Sciences, Nantes, France
| |
Collapse
|
46
|
Fatemi Khader M, Pourmahdi Borujeni M, Moori Bakhtiari N, Avizeh R. An exploratory study on the presence of
Helicobacter heilmannii
and
Helicobacter billis
in the faces of companion dogs. Vet Med Sci 2022; 8:537-545. [PMID: 35152551 PMCID: PMC8959293 DOI: 10.1002/vms3.765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Background Companion animals like dogs play an important role in the lives of many people and are often considered to be members of families, but definitely, any contact with them poses an inherent risk of transmitting zoonotic pathogens. One of these pathogens is the genus Helicobacter which is linked to many disorders in human and animal. Objectives The aim of this study was to investigate the presence of some zoonotic species of genus Helicobacter in companion dogs. Results Through culturing in a special medium, nine samples (9%) were detected as infected (two pure and seven mixed culture). Based on multiplex‐PCR, 13 samples (13%) were infected by Helicobacter spp. although none of them were infected by H. pylori. Species‐specific PCR indicated that 38.5% or 5/13 of the samples were infected with H. heilmannii, while 15.45% or 2/13 of the samples were infected by H. billis. Multivariate logistic regression analysis showed that the age factor had a significant effect on Helicobacter spp. infection (odds ratio [OR] = 2.42, p = 0.01). Conclusion This study revealed the negligible faecal transmission of H. pylori. Moreover, due to the detection of H. Heilmannii and H. billis in feces and their association with human gastric diseases, dog owners should be educated about the risks and transmission modes of zoonotic bacterial infections of dogs.
Collapse
Affiliation(s)
- Mahdi Fatemi Khader
- Department of Food Hygiene, Faculty of Veterinary Medicine Shahid Chamran University of Ahvaz Ahvaz Iran
| | - Mahdi Pourmahdi Borujeni
- Department of Food Hygiene, Faculty of Veterinary Medicine Shahid Chamran University of Ahvaz Ahvaz Iran
| | - Naghmeh Moori Bakhtiari
- Department of Pathobiology, Faculty of Veterinary Medicine Shahid Chamran University of Ahvaz Ahvaz Iran
| | - Reza Avizeh
- Department of Clinical Sciences, Faculty of Veterinary Medicine Shahid Chamran University of Ahvaz Ahvaz Iran
| |
Collapse
|
47
|
Zhu X, Zhao Y, Zhu C, Wang Y, Liu Y, Su J. Rapid detection of cagA-positive Helicobacter pylori based on duplex recombinase aided amplification combined with lateral flow dipstick assay. Diagn Microbiol Infect Dis 2022; 103:115661. [DOI: 10.1016/j.diagmicrobio.2022.115661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/20/2022] [Accepted: 02/06/2022] [Indexed: 11/03/2022]
|
48
|
Helicobacter pylori: an up-to-date overview on the virulence and pathogenesis mechanisms. Braz J Microbiol 2022; 53:33-50. [PMID: 34988937 PMCID: PMC8731681 DOI: 10.1007/s42770-021-00675-0] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 12/24/2021] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori is an organism associated with ulcer disease and gastric cancer. The latter is one of the most prevalent malignancies and currently the fourth major cause of cancer-related deaths globally. The pathogen infects about 50% of the world population, and currently, no treatment ensures its total elimination. There has been an increase in our understanding of the pathophysiology and pathogenesis mechanisms of H. pylori over the years. H. pylori can induce several genetic alterations, express numerous virulence factors, and trigger diverse adaptive mechanisms during its adherence and colonization. For successful colonization and infection establishment, several effector proteins/toxins are released by the organism. Evidence is also available reporting spiral to coccoid transition as a unique tactic H. pylori uses to survive in the host’s gastrointestinal tract (GIT). Thus, the virulence and pathogenicity of H. pylori are under the control of complex interplay between the virulence factors, host, and environmental factors. Expounding the role of the various virulence factors in H. pylori pathogenesis and clinical outcomes is crucial for vaccine development and in providing and developing a more effective therapeutic intervention. Here we critically reflect on H. pylori infection and delineate what is currently known about the virulence and pathogenesis mechanisms of H. pylori.
Collapse
|
49
|
Zhou Q, Liu Y, Wang Z, Wang H, Zhang X, Lu Q. Rapid On-Site Detection of the Bursaphelenchus xylophilus Using Recombinase Polymerase Amplification Combined With Lateral Flow Dipstick That Eliminates Interference From Primer-Dependent Artifacts. FRONTIERS IN PLANT SCIENCE 2022; 13:856109. [PMID: 35371187 PMCID: PMC8971978 DOI: 10.3389/fpls.2022.856109] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 02/17/2022] [Indexed: 05/03/2023]
Abstract
The pine wood nematode (PWN), Bursaphelenchus xylophilus, is one of the most lethal nematode species, which causes pine wilt disease (PWD), a devastating forest disease. To date, no effective methods have been developed to control the disease; hence, rapid precise detection of B. xylophilus is of great significance. Traditional molecular diagnostic methods are time-consuming and require sophisticated instruments or skilled operators, which are unavailable in resource-limited settings. A specific, sensitive, and field-applicable diagnostic method is urgently needed. In this study, we developed a diagnostic method using recombinase polymerase amplification combined with lateral flow dipstick (RPA-LFD) for the rapid on-site detection of B. xylophilus. The false-positive signals from primer-dependent artifacts were eliminated using a probe, and base substitutions were included in the primer and probe. The entire detection process for the RPA-LFD assay can be completed under 38°C within approximately 30 min, including 15 min for crude nematode genomic DNA (gDNA) extraction and master mix preparation, 15 min for the RPA-LFD assay. This assay displayed high specificity toward B. xylophilus and showed no cross-reactions with closely related species, including Bursaphelenchus mucronatus and Bursaphelenchus doui. The sensitivity of this assay had a detection limit as low as 1 pg of B. xylophilus purified genomic DNA. Furthermore, the application of the RPA-LFD assay in simulated spiked pinewood samples showed accurate detection results. The RPA-LFD assay in this study successfully detected B. xylophilus in less than 30 min, providing a novel alternative for the simple, sensitive, and specific detection of B. xylophilus and showed potential for B. xylophilus point-of-care testing (POCT) in resource-limited areas or in field.
Collapse
|
50
|
Hsieh MS, Kuo FC, Wu MC, Wang JW, Liu CJ, Chu NS, Tsai PY, Hsu PI, Wu IC, Wu JY, Wu DC, Yu FJ, Kuo CH. Tailored susceptibility-guided therapy via gastric juice PCR for the first-line H. pylori eradication, a randomized controlled trial. J Formos Med Assoc 2021; 121:1450-1457. [PMID: 34836662 DOI: 10.1016/j.jfma.2021.10.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/22/2021] [Accepted: 10/18/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND/PURPOSE Clarithromycin-based standard triple therapy is still commonly adopted by 81.4% of physicians in real-world practice but yields low eradication rates. Therefore, we conducted this study to compare the efficacy of gastric juice-guided therapy for first-line eradication with the standard triple therapy, in order to provide an alternative to real-world practice. METHODS A total of 182 treatment-naïve Hp-infected patients were included and randomly allocated to either susceptibility-guided therapy (SGT) with gastric juice PCR or Clarithromycin-based standard triple therapy (STT) for 7 days. RESULTS The intention-to-treat eradication rates were 89% (81/91) in SGT and 75.8% in STT (p < 0.031). The per-protocol eradication rates were 91.0% (81/89) in SGT and 79.3% (69/87) in STT (p < 0.034). Among the subgroups of different antibiotic resistance, patients with SGT demonstrated superior eradication rates (91.7% vs 45.5%, p < 0.027) in the subgroup of both clarithromycin resistance and levofloxacin resistance. CONCLUSION This prospective randomized controlled trial demonstrated the reliable efficacy of susceptibility-guided therapy via gastric juice PCR for the first-line Hp eradication. In Asia-Pacific area, where standard triple therapy is still adopted by the majority of the physicians, it is a recommended alternative to overcome the increasing antibiotic resistance.
Collapse
Affiliation(s)
- Meng-Shu Hsieh
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan
| | - Fu-Chen Kuo
- School of Medicine, College of Medicine, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Meng-Chieh Wu
- Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Jiunn-Wei Wang
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chung-Jung Liu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Neng-Sheng Chu
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan
| | - Pei-Yun Tsai
- Department of Nursing, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan
| | - Ping-I Hsu
- Department of Medicine, An Nan Hospital, China Medical University, Tainan, Taiwan
| | - I-Chen Wu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jeng-Yih Wu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Deng-Chyang Wu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Fang-Jung Yu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Chao-Hung Kuo
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan; Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
| |
Collapse
|