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Elghannam MT, Hassanien MH, Ameen YA, Turky EA, ELattar GM, ELRay AA, ELTalkawy MD. Helicobacter pylori and oral-gut microbiome: clinical implications. Infection 2024; 52:289-300. [PMID: 37917397 PMCID: PMC10954935 DOI: 10.1007/s15010-023-02115-7] [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: 07/06/2023] [Accepted: 10/09/2023] [Indexed: 11/04/2023]
Abstract
More than half of the world's population are colonized with H. pylori; however, the prevalence varies geographically with the highest incidence in Africa. H. pylori is probably a commensal organism that has been associated with the development of gastritis, ulcers, and gastric cancer. H. pylori alone is most probably not enough for the development of gastric carcinoma, but evidence for its association with the disease is high and has, therefore, been classified by the International Agency for Research on Cancer as a Class 1 carcinogen. Bacteroidetes and Fusobacteria positively coexisted during H. pylori infection along the oral-gut axis. The eradication therapy required to treat H. pylori infection can also have detrimental consequences for the gut microbiota, leading to a decreased alpha diversity. Therefore, therapy regimens integrated with probiotics may abolish the negative effects of antibiotic therapy on the gut microbiota. These eradication therapies combined with probiotics have also higher rates of eradication, when compared to standard treatments, and are associated with reduced side effects, improving the patient's compliance. The eradication therapy not only affects gut microbiome but also affects the oral microbiome with robust predominance of harmful bacteria. However, there have been reports of a protective role of H. pylori in Barrett's esophagus, esophageal adenocarcinoma, eosinophilic esophagitis, IBD, asthma, and even multiple sclerosis. Therefore, eradication therapy should be carefully considered, and test to treat policy should be tailored to specific communities especially in highly endemic areas. Supplementation of probiotics, prebiotics, herbals, and microbial metabolites to reduce the negative effects of eradication therapy should be considered. After failure of many eradication attempts, the benefits of H. pylori eradication should be carefully balanced against the risk of adverse effects especially in the elderly, persons with frailty, and intolerance to antibiotics.
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Affiliation(s)
- Maged T Elghannam
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt.
| | - Moataz H Hassanien
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Yosry A Ameen
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Emad A Turky
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Gamal M ELattar
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Ahmed A ELRay
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Mohammed D ELTalkawy
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt
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2
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Hernández-Ruiz V, Roubaud-Baudron C, Von Campe H, Retuerto N, Mégraud F, Helmer C, Amieva H, Pérès K. Association between Helicobacter pylori infection and incident risk of dementia: The AMI cohort. J Am Geriatr Soc 2024; 72:1191-1198. [PMID: 38258504 DOI: 10.1111/jgs.18748] [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: 07/15/2023] [Revised: 11/02/2023] [Accepted: 12/03/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND Chronic infectious diseases are increasingly being considered as potential contributors to dementia risk. Among those infections, Helicobacter pylori, the main cause of chronic gastritis worldwide, has been suggested. As the prevalence of H. pylori infection has decreased, the main objective of this work was to reconsider the association between H. pylori infection and the risk of incident dementia, including Alzheimer's disease. METHODS Prospective cohort of 689 older (≥65 years) agricultural workers from Southwest France. Descriptive and comparative analyses were performed according to H. pylori status determined by serology at baseline. The risk of incident dementia according to H. pylori status over a 7-year follow-up was explored by survival analyses: Kaplan-Meier curve and Cox proportional hazards models. RESULTS Two-hundred (29.0%) participants were H. pylori-positive at baseline. Compared to H. pylori-negative participants, they showed worse cognitive performances at baseline. Eighty-five incident dementia cases were diagnosed during the follow-up period. After adjustment for age, sex, education, apolipoprotein ε4, and several cardiovascular risk factors, H. pylori remained associated with an increased risk of dementia (HR 1.70, 95% CI, 1.05-2.74). The risk was stronger for Alzheimer's disease (HR 2.85, 95% CI, 1.58-5.12). CONCLUSIONS Despite an observed decrease in H. pylori infection prevalence, this study provides evidence for the association between H. pylori infection and dementia. These results should encourage further research on the mechanisms underlying the contribution of infectious diseases to pathological brain aging, especially the influence of gut inflammation on the brain.
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Affiliation(s)
- Virgilio Hernández-Ruiz
- INSERM, Bordeaux Population Health Research Center, UMR 1219, University of Bordeaux, Bordeaux, France
| | - Claire Roubaud-Baudron
- Pôle de Gérontologie Clinique, CHU Bordeaux, Bordeaux, France
- INSERM, UMR U1312 - BRIC, University of Bordeaux, Bordeaux, France
| | - Hugo Von Campe
- INSERM, Bordeaux Population Health Research Center, UMR 1219, University of Bordeaux, Bordeaux, France
| | - Noelia Retuerto
- INSERM, Bordeaux Population Health Research Center, UMR 1219, University of Bordeaux, Bordeaux, France
| | - Francis Mégraud
- INSERM, UMR U1312 - BRIC, University of Bordeaux, Bordeaux, France
| | - Catherine Helmer
- INSERM, Bordeaux Population Health Research Center, UMR 1219, University of Bordeaux, Bordeaux, France
| | - Hélène Amieva
- INSERM, Bordeaux Population Health Research Center, UMR 1219, University of Bordeaux, Bordeaux, France
| | - Karine Pérès
- INSERM, Bordeaux Population Health Research Center, UMR 1219, University of Bordeaux, Bordeaux, France
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Binda S, Tremblay A, Iqbal UH, Kassem O, Le Barz M, Thomas V, Bronner S, Perrot T, Ismail N, Parker J. Psychobiotics and the Microbiota-Gut-Brain Axis: Where Do We Go from Here? Microorganisms 2024; 12:634. [PMID: 38674579 PMCID: PMC11052108 DOI: 10.3390/microorganisms12040634] [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: 02/21/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024] Open
Abstract
The bidirectional relationship between the gut microbiota and the nervous system is known as the microbiota-gut-brain axis (MGBA). The MGBA controls the complex interactions between the brain, the enteric nervous system, the gut-associated immune system, and the enteric neuroendocrine systems, regulating key physiological functions such as the immune response, sleep, emotions and mood, food intake, and intestinal functions. Psychobiotics are considered tools with the potential to modulate the MGBA through preventive, adjunctive, or curative approaches, but their specific mechanisms of action on many aspects of health are yet to be characterized. This narrative review and perspectives article highlights the key paradigms needing attention as the scope of potential probiotics applications in human health increases, with a growing body of evidence supporting their systemic beneficial effects. However, there are many limitations to overcome before establishing the extent to which we can incorporate probiotics in the management of neuropsychiatric disorders. Although this article uses the term probiotics in a general manner, it remains important to study probiotics at the strain level in most cases.
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Affiliation(s)
- Sylvie Binda
- Lallemand Health Solutions, 19 Rue des Briquetiers, BP 59, 31702 Blagnac, France; (M.L.B.); (V.T.)
- Rosell Institute for Microbiome and Probiotics, Lallemand Health Solutions, 6100 Royalmount Avenue, Montreal, QC H4P 2R2, Canada; (A.T.); (U.H.I.); (O.K.); (S.B.)
| | - Annie Tremblay
- Rosell Institute for Microbiome and Probiotics, Lallemand Health Solutions, 6100 Royalmount Avenue, Montreal, QC H4P 2R2, Canada; (A.T.); (U.H.I.); (O.K.); (S.B.)
| | - Umar Haris Iqbal
- Rosell Institute for Microbiome and Probiotics, Lallemand Health Solutions, 6100 Royalmount Avenue, Montreal, QC H4P 2R2, Canada; (A.T.); (U.H.I.); (O.K.); (S.B.)
| | - Ola Kassem
- Rosell Institute for Microbiome and Probiotics, Lallemand Health Solutions, 6100 Royalmount Avenue, Montreal, QC H4P 2R2, Canada; (A.T.); (U.H.I.); (O.K.); (S.B.)
| | - Mélanie Le Barz
- Lallemand Health Solutions, 19 Rue des Briquetiers, BP 59, 31702 Blagnac, France; (M.L.B.); (V.T.)
| | - Vincent Thomas
- Lallemand Health Solutions, 19 Rue des Briquetiers, BP 59, 31702 Blagnac, France; (M.L.B.); (V.T.)
| | - Stéphane Bronner
- Rosell Institute for Microbiome and Probiotics, Lallemand Health Solutions, 6100 Royalmount Avenue, Montreal, QC H4P 2R2, Canada; (A.T.); (U.H.I.); (O.K.); (S.B.)
| | - Tara Perrot
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS B3H 4R2, Canada;
| | - Nafissa Ismail
- Department of Psychology, University of Ottawa, Ottawa, ON K1N 6N5, Canada;
| | - J.Alex Parker
- Département de Neurosciences, Université de Montréal, Montreal, QC H3T 1J4, Canada;
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Zhao E, Yu Q, Wang M, Wang Z, Jiang B, Ma X, Zhou B, Dai Q, Li J, Wang S, Chen F, Yang X. Value of serum brain-derived neurotrophic factor and glial fibrillary acidic protein for detecting depression in patients with Helicobacter pylori infection. Neurosci Lett 2024; 825:137687. [PMID: 38403261 DOI: 10.1016/j.neulet.2024.137687] [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: 09/07/2023] [Revised: 01/31/2024] [Accepted: 02/09/2024] [Indexed: 02/27/2024]
Abstract
OBJECTIVE Infection with helicobacter pylori (H. pylori) is associated with depression, and depression can affect the outcome of H. pylori treatment. This study aimed to evaluate the value of serum brain-derived neurotrophic factor (BDNF) and glial fibrillary acidic protein (GFAP) for predicting depression in H. pylori-positive patients. METHOD A total of 82H. pylori-positive and 82H. pylori-negative patients were recruited for this study. All patients underwent neuropsychological and gastrointestinal assessments and blood sampling. BDNF and GFAP levels were measured in serum. The least absolute shrinkage and selection operator (LASSO) model was used to determine a composite marker. RESULTS H. pylori-positive patients showed significantly increased serum GFAP levels and significantly decreased serum BDNF levels compared to H. pylori-negative patients. Among H. pylori-positive patients, serum levels of gastrin 17 (G-17), pepsinogen (PG) I/PGII, BDNF, and GFAP, as well as Gastrointestinal Symptom Rating Scale (GSRS) scores, were significantly correlated with Hamilton Depression Scale (HAMD-24) overall scores and factor scores. Interactions between serum BDNF/GFAP and gastrointestinal serum indices or GSRS scores were significantly associated with HAMD-24 scores in H. pylori-positive patients. The LASSO model indicated that the combination of serum BDNF, GFAP, and G-17 and GSRS scores could identify H. pylori-positive patients with depression with an area under the curve of 0.879. CONCLUSION Circulating changes in BDNF and GFAP were associated with the occurrence of depression in H. pylori-positive patients. A composite marker including neural and gastrointestinal function-related indices may be of value for identifying depression among H. pylori-positive patients.
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Affiliation(s)
- En Zhao
- Department of Gastroenterology, Xishan People's Hospital of Wuxi City, Wuxi 214105, China.
| | - Qian Yu
- Department of Gastroenterology, Affiliated Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Meilei Wang
- Department of Neurology, Xishan People's Hospital of Wuxi City, Wuxi 214105, China
| | - Zhengqiu Wang
- Department of Gastroenterology, Xishan People's Hospital of Wuxi City, Wuxi 214105, China
| | - Bin Jiang
- Department of Gastroenterology, Xishan People's Hospital of Wuxi City, Wuxi 214105, China
| | - Xiang Ma
- Department of Gastroenterology, Xishan People's Hospital of Wuxi City, Wuxi 214105, China
| | - Bin Zhou
- Department of Gastroenterology, Xishan People's Hospital of Wuxi City, Wuxi 214105, China
| | - Qingyong Dai
- Department of Neurology, Xishan People's Hospital of Wuxi City, Wuxi 214105, China
| | - Jinyu Li
- Department of Gastroenterology, Xishan People's Hospital of Wuxi City, Wuxi 214105, China
| | - Shiming Wang
- Department of Gastroenterology, Xishan People's Hospital of Wuxi City, Wuxi 214105, China
| | - Fengjuan Chen
- Department of Gastroenterology, Xishan People's Hospital of Wuxi City, Wuxi 214105, China.
| | - Xiaojun Yang
- Department of Gastroenterology, Xishan People's Hospital of Wuxi City, Wuxi 214105, China.
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Fischbach W, Bornschein J, Hoffmann JC, Koletzko S, Link A, Macke L, Malfertheiner P, Schütte K, Selgrad DM, Suerbaum S, Schulz C. Update S2k-Guideline Helicobacter pylori and gastroduodenal ulcer disease of the German Society of Gastroenterology, Digestive and Metabolic Diseases (DGVS). ZEITSCHRIFT FUR GASTROENTEROLOGIE 2024; 62:261-321. [PMID: 38364851 DOI: 10.1055/a-2181-2225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Affiliation(s)
| | - Jan Bornschein
- Translational Gastroenterology Unit John, John Radcliffe Hospital Oxford University Hospitals, Oxford, United Kingdom
| | - Jörg C Hoffmann
- Medizinische Klinik I, St. Marien- und St. Annastiftskrankenhaus, Ludwigshafen, Deutschland
| | - Sibylle Koletzko
- Kinderklinik und Kinderpoliklinik im Dr. von Haunerschen Kinderspital, LMU-Klinikum Munich, Munich, Deutschland
- Department of Paediatrics, Gastroenterology and Nutrition, School of Medicine Collegium Medicum University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Alexander Link
- Klinik für Gastroenterologie, Hepatologie und Infektiologie, Universitätsklinikum Magdeburg, Magdeburg, Deutschland
| | - Lukas Macke
- Medizinische Klinik und Poliklinik II Campus Großhadern, Universitätsklinikum Munich, Munich, Deutschland
- Deutsches Zentrum für Infektionsforschung, Standort Munich, Munich, Deutschland
| | - Peter Malfertheiner
- Klinik für Gastroenterologie, Hepatologie und Infektiologie, Universitätsklinikum Magdeburg, Magdeburg, Deutschland
- Medizinische Klinik und Poliklinik II Campus Großhadern, Universitätsklinikum Munich, Munich, Deutschland
| | - Kerstin Schütte
- Klinik für Allgemeine Innere Medizin und Gastroenterologie, Niels-Stensen-Kliniken Marienhospital Osnabrück, Osnabrück, Deutschland
| | - Dieter-Michael Selgrad
- Medizinische Klinik Gastroenterologie und Onkologie, Klinikum Fürstenfeldbruck, Fürstenfeldbruck, Deutschland
- Klinik für Innere Medizin 1, Universitätsklinikum Regensburg, Regensburg, Deutschland
| | - Sebastian Suerbaum
- Universität Munich, Max von Pettenkofer-Institut für Hygiene und Medizinische Mikrobiologie, Munich, Deutschland
- Nationales Referenzzentrum Helicobacter pylori, Pettenkoferstr. 9a, 80336 Munich, Deutschland
- Deutsches Zentrum für Infektionsforschung, Standort Munich, Munich, Deutschland
| | - Christian Schulz
- Medizinische Klinik und Poliklinik II Campus Großhadern, Universitätsklinikum Munich, Munich, Deutschland
- Deutsches Zentrum für Infektionsforschung, Standort Munich, Munich, Deutschland
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6
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Li Z, Wang H, Yin Y. Peripheral inflammation is a potential etiological factor in Alzheimer's disease. Rev Neurosci 2024; 35:99-120. [PMID: 37602685 DOI: 10.1515/revneuro-2023-0049] [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: 04/19/2023] [Accepted: 07/27/2023] [Indexed: 08/22/2023]
Abstract
Peripheral inflammation could constitute a risk factor for AD. This review summarizes the research related to peripheral inflammation that appears to have a relationship with Alzheimer's disease. We find there are significant associations between AD and peripheral infection induced by various pathogens, including herpes simplex virus type 1, cytomegalovirus, Epstein-Barr virus, human immunodeficiency virus, severe acute respiratory syndrome coronavirus 2, Porphyromonas gingivalis, Helicobacter pylori, and Toxoplasma gondii. Chronic inflammatory diseases are also reported to contribute to the pathophysiology of AD. The mechanisms by which peripheral inflammation affects the pathophysiology of AD are complex. Pathogen-derived neurotoxic molecule composition, disrupted BBB, and dysfunctional neurogenesis may all play a role in peripheral inflammation, promoting the development of AD. Anti-pathogenic medications and anti-inflammatory treatments are reported to decrease the risk of AD. Studies that could improve understanding the associations between AD and peripheral inflammation are needed. If our assumption is correct, early intervention against inflammation may be a potential method of preventing and treating AD.
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Affiliation(s)
- Ziyuan Li
- Department of Nuclear Medicine, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kongjiang Road 1665, Yangpu District, Shanghai 200092, China
| | - Hui Wang
- Department of Nuclear Medicine, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kongjiang Road 1665, Yangpu District, Shanghai 200092, China
| | - Yafu Yin
- Department of Nuclear Medicine, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kongjiang Road 1665, Yangpu District, Shanghai 200092, China
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7
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Tan S, Chen W, Kong G, Wei L, Xie Y. Peripheral inflammation and neurocognitive impairment: correlations, underlying mechanisms, and therapeutic implications. Front Aging Neurosci 2023; 15:1305790. [PMID: 38094503 PMCID: PMC10716308 DOI: 10.3389/fnagi.2023.1305790] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 11/10/2023] [Indexed: 08/22/2024] Open
Abstract
Cognitive impairments, such as learning and memory deficits, may occur in susceptible populations including the elderly and patients who are chronically ill or have experienced stressful events, including surgery, infection, and trauma. Accumulating lines of evidence suggested that peripheral inflammation featured by the recruitment of peripheral immune cells and the release of pro-inflammatory cytokines may be activated during aging and these conditions, participating in peripheral immune system-brain communication. Lots of progress has been achieved in deciphering the core bridging mechanism connecting peripheral inflammation and cognitive impairments, which may be helpful in developing early diagnosis, prognosis evaluation, and prevention methods based on peripheral blood circulation system sampling and intervention. In this review, we summarized the evolving evidence on the prevalence of peripheral inflammation-associated neurocognitive impairments and discussed the research advances in the underlying mechanisms. We also highlighted the prevention and treatment strategies against peripheral inflammation-associated cognitive dysfunction.
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Affiliation(s)
- Siyou Tan
- Department of Anesthesiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Department of Anesthesiology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Wenyan Chen
- Department of Anesthesiology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Gaoyin Kong
- Department of Anesthesiology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Lai Wei
- Department of Anesthesiology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Yubo Xie
- Department of Anesthesiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Key Laboratory of Enhanced Recovery after Surgery for Gastrointestinal Cancer, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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8
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Erickson LD, White DS, Bassett P, Gale SD, Brown BL, Hedges D. Cognitive function in UK adults seropositive for Helicobacter pylori. PLoS One 2023; 18:e0286731. [PMID: 37285350 DOI: 10.1371/journal.pone.0286731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 05/22/2023] [Indexed: 06/09/2023] Open
Abstract
Associated with gastritis, peptic-ulcer disease, and gastric carcinoma, Helicobacter pylori (H. pylori) also has been associated with decreased cognitive function and dementia. In this study, we used data from the UK Biobank to further examine associations between H. pylori seropositivity and serointensity and performance on several cognitive tasks in adults 40 to 70 years of age (M = 55.3, SD = 8.1). In these analyses, H. pylori seropositivity (i.e., either positive or negative for H. pylori) and serointensity (concentration of antibodies against H. pylori antigens) in adjusted models were associated with worse function on tasks of Numeric memory, Reasoning, and errors on the Pairs matching test but better function on the Tower rearrangement task. Together, these findings suggest that H. pylori seropositivity and serointensity might be associated with worse cognitive function in this age group.
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Affiliation(s)
| | - David S White
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah
| | - Pierce Bassett
- The Neuroscience Center, Brigham Young University, Provo, Utah
| | - Shawn D Gale
- The Neuroscience Center, Brigham Young University, Provo, Utah
- Department of Psychology, Brigham Young University, Provo, Utah
| | - Bruce L Brown
- Department of Psychology, Brigham Young University, Provo, Utah
| | - Dawson Hedges
- The Neuroscience Center, Brigham Young University, Provo, Utah
- Department of Psychology, Brigham Young University, Provo, Utah
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Aktualisierte S2k-Leitlinie Helicobacter
pylori und gastroduodenale Ulkuskrankheit der Deutschen Gesellschaft für Gastroenterologie, Verdauungs- und Stoffwechselkrankheiten (DGVS) – Juli 2022 – AWMF-Registernummer: 021–001. ZEITSCHRIFT FUR GASTROENTEROLOGIE 2023; 61:544-606. [PMID: 37146633 DOI: 10.1055/a-1975-0414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
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10
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Wang J, Yu NW, Wang DZ, Guo L, Yang S, Zheng B, Guo FQ, Wang JH. Helicobacter pylori Infection Is Associated with Long-Term Cognitive Decline in Older Adults: A Two-Year Follow-Up Study. J Alzheimers Dis 2023; 91:1351-1358. [PMID: 36641681 DOI: 10.3233/jad-221112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Previous cross-sectional studies have identified a possible link between Helicobacter pylori (H. pylori) infection and dementia. However, the association of H. pylori infection with longitudinal cognitive decline has rarely been investigated. OBJECTIVE This cohort study aims to demonstrate the effects of H. pylori infection on longitudinal cognitive decline. METHODS This cohort study recruited 268 subjects with memory complaints. Among these subjects, 72 had a history of H. pylori infection, and the rest 196 subjects had no H. pylori infection. These subjects were followed up for 24 months and received cognitive assessment in fixed intervals of 12 months. RESULTS At baseline, H. pylori infected, and uninfected participants had no difference in MMSE scores. At 2 years of follow-up, H. pylori infected participants had lower MMSE scores than uninfected participants. H. pylori infection was associated with an increased risk of longitudinal cognitive decline, as defined by a decrease of MMSE of 3 points or more during follow-up, adjusting for age, sex, education, APOEɛ4 genotype, hypertension, diabetes, hyperlipidemia, and smoking history (HR: 2.701; 95% CI: 1.392 to 5.242). H. pylori infection was associated with larger cognitive decline during follow-up, adjusting for the above covariates (standardized coefficient: 0.282, p < 0.001). Furthermore, H. pylori infected subjects had significantly higher speed of cognitive decline than uninfected subjects during follow-up, adjusting for the above covariates. CONCLUSION H. pylori infection increases the risk of longitudinal cognitive decline in older subjects with memory complaints. This study is helpful for further understanding the association between infection and dementia.
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Affiliation(s)
- Jian Wang
- Department of Neurology, Ya'an People's Hospital, Ya'an, Sichuan, China
| | - Neng-Wei Yu
- Department of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Duo-Zi Wang
- Department of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Lei Guo
- Department of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Shu Yang
- Department of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Bo Zheng
- Department of Neurology, Ya'an People's Hospital, Ya'an, Sichuan, China
| | - Fu-Qiang Guo
- Department of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Jian-Hong Wang
- Department of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
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11
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Bi J, Xu Y, Li S, Zhan G, Hua D, Tan J, Chi X, Xiang H, Guo F, Luo A. Contribution of preoperative gut microbiota in postoperative neurocognitive dysfunction in elderly patients undergoing orthopedic surgery. Front Aging Neurosci 2023; 15:1108205. [PMID: 36875700 PMCID: PMC9981628 DOI: 10.3389/fnagi.2023.1108205] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 01/31/2023] [Indexed: 02/19/2023] Open
Abstract
Objective To investigate the role of gut microbiota and metabolites in POCD in elderly orthopedic patients, and screen the preoperative diagnostic indicators of gut microbiota in elderly POCD. Method 40 elderly patients undergoing orthopedic surgery were enrolled and divided into Control group and POCD group following neuropsychological assessments. Gut microbiota was determined by 16S rRNA MiSeq sequencing, and metabolomics of GC-MS and LC-MS was used to screen the differential metabolites. We then analyzed the pathways enriched by metabolites. Result There was no difference in alpha or beta diversity between Control group and POCD group. There were significant differences in 39 ASV and 20 genera bacterium in the relative abundance. Significant diagnostic efficiency analyzed by the ROC curves were found in 6 genera bacterium. Differential metabolites in the two groups including acetic acid, arachidic acid, pyrophosphate etc. were screened out and enriched to certain metabolic pathways which impacted the cognition function profoundly. Conclusion Gut microbiota disorders exist preoperatively in the elderly POCD patients, by which there could be a chance to predict the susceptible population. Clinical Trial Registration [http://www.chictr.org.cn/edit.aspx?pid=133843&htm=4], identifier [ChiCTR2100051162].
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Affiliation(s)
- Jiangjiang Bi
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yifan Xu
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shiyong Li
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gaofeng Zhan
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dongyu Hua
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Juan Tan
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaohui Chi
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongbing Xiang
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fengjing Guo
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ailin Luo
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Rapamycin Attenuates Anxiety and Depressive Behavior Induced by Helicobacter pylori in Association with Reduced Circulating Levels of Ghrelin. Neural Plast 2022; 2022:2847672. [PMID: 35677839 PMCID: PMC9170403 DOI: 10.1155/2022/2847672] [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: 12/03/2021] [Revised: 04/08/2022] [Accepted: 05/04/2022] [Indexed: 11/17/2022] Open
Abstract
Background. Helicobacter pylori (H. pylori) infection is closely associated with depression and development of neuroinflammation. The aim of this study is to explore the relationship between H. pylori, depression, and circulating levels of ghrelin. Methods. Mice were randomly divided into three groups: healthy control group (gavaged sterile saline and injected with saline,
); H. pylori+saline group (gavaged H. pylori and injected with saline,
); and H. pylori+rapa group (gavaged H. pylori and injected with rapamycin,
). Open field test (OFT), sucrose preference test (SPT), forced swim test (FST), and tail suspension test (TST) were used for anxiety and depressive behavior test. Western blotting was utilized to assess mTOR, p-mTOR, and GSMD expression, and serum ghrelin levels were estimated using ELISA. Results. In the OFT, the control mice moved more and exhibited a increase in crossing number relative to the H. pylori+saline mice (all
). Increased quantity of fecal boli can be indicative of increased anxiety and emotionality of the subject animal. H. pylori+saline mice exhibited an increase in fecal boli when compared to control mice and H. pylori+rapa mice (
). H. pylori infected mice decreasing the expression of ghrelin. The protein levels of p-mTOR/mTOR in the gastric antrum mTOR signaling activation and low-level ghrelin in H. pylori-infect mice compared to those in control mice (all P <0.001). Compared with single H. pylori infection, mTOR inhibitors increased the ghrelin secretion of H. pylori infection to a certain extent (
). The protein levels of GSDMD expression significantly increase in hippocampus of H. pylori-infected mice (
). Rapamycin treatment inhibited expression of GSDMD in H. pylori-infected mice (
). Conclusions. H. pylori infection is associated with increased expression of mTOR and decreased circulating levels of ghrelin. Elevated pyroptosis in the brain and anxiety- and depressed-like behaviors occur when ghrelin levels are suppressed.
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Kuang WM, Ren YJ, Chen X, Luo Q, Chen W, Pan HG, Li RL, Hu L. Association between serum vitamin D levels and Helicobacter pylori cytotoxic-associated gene A seropositivity: a cross-sectional study in US adults from NHANES III. BMJ Open 2022; 12:e058164. [PMID: 35418433 PMCID: PMC9014105 DOI: 10.1136/bmjopen-2021-058164] [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] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE To assess the association of serum vitamin D (VD) levels and Helicobacter pylori (H. pylori) cytotoxic-associated gene A (CagA) seropositivity, and further explore potential effect modifiers in this association. DESIGN Cross-sectional study. SETTING Data from phase I of the National Health and Nutrition Examination Survey (NHANES III, 1988-1991) led by the Center for Disease Control and Prevention. PARTICIPANTS A total of 3512 US adults (≥20 years) with both serum VD levels and H. pylori CagA antibody data from NHANES III were included in the analysis. METHODS VD deficiency was defined as serum 25(OH)D concentrations<20 ng/mL. Logistic regression models were used to assess the association of serum VD levels and H. pylori CagA seropositivity (VD-Hp CagA+), and stratification analyses were used to explore potential effect modifiers. RESULTS There was no significant association of VD-Hp CagA+ in the general population. But serum 25(OH)D concentrations were associated with H. pylori CagA+ in non-Hispanic whites (adjusted OR=1.02, 95% CI: 1.00 to 1.03), other races/ethnicities (adjusted OR=1.08, 95% CI: 1.01 to 1.06), populations born in other countries (adjusted OR=1.09, 95% CI: 1.04 to 1.15) or occasional drinkers (adjusted OR=0.93, 95% CI: 0.88 to 0.99). VD deficiency was associated with H. pylori CagA+ in non-Hispanic whites (adjusted OR=0.69, 95% CI: 0.53 to 0.92), populations born in other countries (adjusted OR=0.47, 95% CI: 0.25 to 0.89), non-drinkers (adjusted OR=0.80, 95% CI: 0.65 to 0.99), occasional drinkers (adjusted OR=2.53, 95% CI: 1.06 to 6.05), population with first quartile level of serum ferritin (adjusted OR=0.70, 95% CI: 0.51 to 0.96) or fourth quartile level of serum folate (adjusted OR=0.63, 95% CI: 0.46 to 0.87). CONCLUSIONS Racial/ethnic differences and different serum ferritin or serum folate levels may be effect modifiers for the association of VD-Hp CagA+.
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Affiliation(s)
- Wei-Ming Kuang
- Institute of Gastroenterology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Yu-Jie Ren
- Institute of Gastroenterology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Xu Chen
- First Affiliated Hospital, Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - Qi Luo
- First Affiliated Hospital, Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - Weijing Chen
- Institute of Gastroenterology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Huai-Geng Pan
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Ru-Liu Li
- Institute of Gastroenterology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Ling Hu
- Institute of Gastroenterology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
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Reshetnyak VI, Burmistrov AI, Maev IV. Helicobacter pylori: Commensal, symbiont or pathogen? World J Gastroenterol 2021; 27:545-560. [PMID: 33642828 PMCID: PMC7901052 DOI: 10.3748/wjg.v27.i7.545] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 12/28/2020] [Accepted: 01/21/2021] [Indexed: 02/06/2023] Open
Abstract
This review considers the data on Helicobacter pylori (H. pylori), which have been accumulated over 40 years since its description as an etiological factor in gastrointestinal diseases. The majority of modern publications are devoted to the study of the pathogenic properties of the microorganism in the development of chronic gastritis, peptic ulcer disease, and gastric cancer, as well as methods for its eradication. However, in recent years, there have been more and more studies which have suggested that H. pylori has a beneficial, or potentially positive, effect on the human body. The authors have attempted to objectively analyze the information accumulated in the literature on H. pylori. Some studies consider it as one of the recently identified human bacterial pathogens, and special attention is paid to the evidence suggesting that it is probably part of the composition of the human microbiome as a commensal (commensal from French to English is a table companion) or even a symbiont. The presented data discussing the presence or absence of the effect of H. pylori on human health suggest that there is an apparent ambiguity of the problem. The re-assessment of the data available on H. pylori infection is important in order to answer the question of whether it is necessary to create a program of mass H. pylori eradication or to apply a more personalized approach to treating patients with H. pylori-associated gastrointestinal diseases and to perform eradication therapy.
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Affiliation(s)
- Vasiliy Ivanovich Reshetnyak
- Department of Propaedeutic of Internal Diseases and Gastroenterology, A.I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow 127473, Russia
| | - Alexandr Igorevich Burmistrov
- Department of Propaedeutic of Internal Diseases and Gastroenterology, A.I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow 127473, Russia
| | - Igor Veniaminovich Maev
- Department of Propaedeutic of Internal Diseases and Gastroenterology, A.I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow 127473, Russia
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15
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González-Sanmiguel J, Schuh CMAP, Muñoz-Montesino C, Contreras-Kallens P, Aguayo LG, Aguayo S. Complex Interaction between Resident Microbiota and Misfolded Proteins: Role in Neuroinflammation and Neurodegeneration. Cells 2020; 9:E2476. [PMID: 33203002 PMCID: PMC7697492 DOI: 10.3390/cells9112476] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/02/2020] [Accepted: 11/10/2020] [Indexed: 12/13/2022] Open
Abstract
Neurodegenerative diseases such as Alzheimer's disease (AD), Parkinson's disease (PD) and Creutzfeldt-Jakob disease (CJD) are brain conditions affecting millions of people worldwide. These diseases are associated with the presence of amyloid-β (Aβ), alpha synuclein (α-Syn) and prion protein (PrP) depositions in the brain, respectively, which lead to synaptic disconnection and subsequent progressive neuronal death. Although considerable progress has been made in elucidating the pathogenesis of these diseases, the specific mechanisms of their origins remain largely unknown. A body of research suggests a potential association between host microbiota, neuroinflammation and dementia, either directly due to bacterial brain invasion because of barrier leakage and production of toxins and inflammation, or indirectly by modulating the immune response. In the present review, we focus on the emerging topics of neuroinflammation and the association between components of the human microbiota and the deposition of Aβ, α-Syn and PrP in the brain. Special focus is given to gut and oral bacteria and biofilms and to the potential mechanisms associating microbiome dysbiosis and toxin production with neurodegeneration. The roles of neuroinflammation, protein misfolding and cellular mediators in membrane damage and increased permeability are also discussed.
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Affiliation(s)
| | - Christina M. A. P. Schuh
- Centro de Medicina Regenerativa, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7710162, Chile; (C.M.A.P.S.); (P.C.-K.)
| | - Carola Muñoz-Montesino
- Department of Physiology, Universidad de Concepción, Concepción 4070386, Chile; (J.G.-S.); (C.M.-M.)
| | - Pamina Contreras-Kallens
- Centro de Medicina Regenerativa, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7710162, Chile; (C.M.A.P.S.); (P.C.-K.)
| | - Luis G. Aguayo
- Department of Physiology, Universidad de Concepción, Concepción 4070386, Chile; (J.G.-S.); (C.M.-M.)
- Program on Neuroscience, Psychiatry and Mental Health, Universidad de Concepción, Concepción 4070386, Chile
| | - Sebastian Aguayo
- School of Dentistry, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
- Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
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Pellicano R, Ianiro G, Fagoonee S, Settanni CR, Gasbarrini A. Review: Extragastric diseases and Helicobacter pylori. Helicobacter 2020; 25 Suppl 1:e12741. [PMID: 32918343 DOI: 10.1111/hel.12741] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The involvement of Helicobacter pylori infection in many extra-gastroduodenal manifestations remains a fascinating field of investigation. However, for several of these supposed associations, the potential pathogenic mechanism remains unclear. The present review highlights the main associations of H pylori with extra-gastroduodenal manifestations reported during the last year. We searched for the most relevant studies on this topic, published between April 2019 and March 2020, identified using the term "Helicobacter" in the MEDLINE/Pubmed database. Consistent data emerged from studies investigating metabolic syndrome and ischaemic cardiovascular diseases. Other reported fields of investigation were hepatology, especially focused on non-alcoholic steatohepatitis, neurology, including Parkinson's disease and Alzheimer's disease, as well as dermatology. Inflammatory bowel disease (IBD), that comprises Crohn's disease and ulcerative colitis, may originate from a dysregulation of the host's immune response to commensal bacteria in individuals with genetic predisposition. The reduction of biodiversity and other specific imbalances in the faecal microbiome composition of IBD patients compared to that of healthy controls support this hypothesis. In this context, an inverse correlation between H pylori infection and IBD prevalence has been confirmed. Similar results were found in patients with kidney diseases and allergic manifestations. There are indications of the possible involvement of H pylori infection in metabolic syndrome and ischaemic cardiovascular diseases. However, due to a series of factors linked to study designs and the multifactorial pathogenesis of some diseases, further studies are needed.
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Affiliation(s)
| | - Gianluca Ianiro
- Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Catholic University of Sacred Heart, Rome, Italy
| | - Sharmila Fagoonee
- Institute of Biostructure and Bioimaging (CNR) c/o Molecular Biotechnology Center, Turin, Italy
| | - Carlo R Settanni
- Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Catholic University of Sacred Heart, Rome, Italy
| | - Antonio Gasbarrini
- Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Catholic University of Sacred Heart, Rome, Italy
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